Battery replacement device and assembly method thereof

Abstract

The application provides a battery replacing device and an assembling method thereof, and belongs to the technical field of battery replacing devices. The battery replacing device can walk along a preset track to replace the chassis of a battery replacing vehicle. The battery replacing device comprises a battery replacing module, a first walking module and a second walking module. The battery replacing module comprises a frame main body, a lifting mechanism and a battery replacing platform. The first walking module is connected to one side of the battery replacing module along the walking direction of the battery replacing device. The first walking module comprises a first walking wheel set connected in rotation. The second walking module is connected to the other side of the battery replacing module along the walking direction and is opposite to the first walking module. The second walking module comprises two second walking wheel sets connected in sliding. When the second walking wheel sets are driven, the battery replacing module can rotate in a horizontal plane with the first walking wheel set as a fulcrum to align with the battery of the battery replacing vehicle. The positioning between the battery replacing device and the battery replacing vehicle is more accurate, thereby ensuring the accuracy of battery replacement and improving the battery replacement efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery swap equipment, in particular to a battery swap equipment and an assembling method thereof. BACKGROUND

[0002] The battery installation of the existing battery swap vehicle is generally divided into fixed type and replaceable type. The replaceable type battery is generally installed in a movable manner. The battery can be removed at any time for replacement or charging, and after replacement or charging is completed, the battery is installed on the vehicle body.

[0003] When replacing the battery pack of the battery swap vehicle in the battery swap station, the battery swap equipment needs to be accurately positioned relative to the battery swap vehicle to ensure that the battery pack is smoothly disassembled and installed by the battery swap equipment. However, the existing battery swap equipment basically travels along a track perpendicular to the driving direction of the battery swap vehicle, and can only adjust the position in the extension direction of the track and the direction perpendicular to the extension direction of the track. If the battery swap vehicle is inclined at a certain angle relative to its driving direction, the battery swap equipment may not be accurately positioned relative to the battery swap vehicle, resulting in that the disassembly and installation of the battery pack cannot be smoothly performed. Since the battery swap vehicle has large weight and volume, it is difficult to be parked at an accurate position with an accurate posture, especially for heavy trucks. Therefore, the battery swap equipment needs to be adjusted to accurately position relative to the battery swap vehicle. SUMMARY

[0004] The present application aims to solve the technical problem that the existing battery swap equipment cannot be positioned and replaced due to the inaccuracy of the parking position of the battery swap vehicle, and provides a battery swap equipment and an assembling method thereof.

[0005] The present application solves the above technical problem by the following technical scheme:

[0006] A battery swap equipment capable of walking along a preset track to perform chassis battery swap for a battery swap vehicle, comprising:

[0007] A battery swap module, comprising a frame body, a lifting mechanism and a battery swap platform. The frame body comprises two opposite cross beams and two opposite longitudinal beams arranged around the cross beams, and two partition plates parallel to the longitudinal beams and connected with the cross beams. The partition plates divide the frame body into a middle area and side areas symmetrically arranged on both sides of the middle area. The lifting mechanism is connected to the partition plates, and the lifting mechanism is partially located in the side areas and partially located in the middle area. The battery swap platform is arranged in the middle area and connected with the lifting mechanism, so that the battery swap platform can be lifted by the lifting mechanism to ascend and descend relative to the frame body to replace the battery of the battery swap vehicle.

[0008] The first walking module is connected to one side of the battery replacing module along a walking direction of the battery replacing device, and the first walking module comprises at least one first walking wheel set connected in rotation;

[0009] The second walking module is connected to the other side of the battery replacing module along the walking direction and opposite to the first walking module, and the second walking module comprises at least two second walking wheel sets connected in sliding;

[0010] The battery replacing module can rotate in a horizontal plane with the first walking wheel set as a fulcrum to align with the battery of the battery replacing vehicle when the second walking wheel set is driven.

[0011] In the scheme, the battery replacing device is modularized in the above structure, which facilitates the installation of required components on each module of the battery replacing device, improves the installation efficiency, shortens the production cycle of each module, facilitates the disassembly and repair by workers, enhances the flexibility and universality of the battery replacing device, and makes the battery replacing device more applicable. The first walking module and the second walking module are arranged on both sides of the battery replacing module respectively, and the lifting mechanism is used to drive the battery replacing platform, which facilitates the independent operation of each mechanism and ensures the safety of the battery replacing device entering from the bottom of the battery replacing vehicle to replace the battery of the battery replacing vehicle. Meanwhile, the battery replacing module can rotate in a horizontal plane with the first walking wheel set as a fulcrum, so that in the case that the parking position of the battery replacing vehicle is deviated, the battery replacing device can be precisely positioned with the battery replacing vehicle through rotation, thereby ensuring the accuracy of battery replacement and improving the battery replacement efficiency.

[0012] Preferably, the first walking module further comprises a third walking wheel set, and the first walking wheel set and the third walking wheel set are arranged opposite to each other on both sides of the battery replacing device parallel to the walking direction.

[0013] In the scheme, the third walking wheel set is arranged in the first walking module, and the first walking wheel set and the third walking wheel set are arranged opposite to each other, which is beneficial to ensure the stability of the battery replacing device and improve the carrying capacity of the battery replacing device.

[0014] Preferably, two second walking wheel sets are arranged opposite to each other on both sides of the battery replacing device parallel to the walking direction.

[0015] In the scheme, the two second walking wheel sets are arranged on both sides of the battery replacing device parallel to the walking direction, which is beneficial to ensure the stability of the battery replacing device and improve the carrying capacity of the battery replacing device.

[0016] Preferably, one of the two second walking wheel sets is provided with a driving mechanism, and the second walking wheel set provided with the driving mechanism is located at a diagonal position with the first walking wheel set; and / or, the two second walking wheel sets are independently provided with driving mechanisms.

[0017] In the scheme, when one of the two second walking wheel sets is provided with a driving mechanism, the small floating movement of the second walking wheel set can be driven to make the second walking wheel set and the second walking module slide relative to each other, and then the battery replacement device can rotate in the horizontal plane with the first walking wheel set as the fulcrum; when both of the two second walking wheel sets are provided with driving mechanisms, the rotating power of the battery replacement device can be increased, the application range of the battery replacement device can be increased, and the two second walking wheel sets can be driven in opposite directions to make the second walking wheel sets and the second walking module slide to twist, so that the battery replacement device can rotate in the horizontal plane.

[0018] Preferably, the first walking module further comprises a first walking frame, and the second walking module further comprises a second walking frame, the first walking frame and the second walking frame are oppositely arranged on both sides of the battery replacement module perpendicular to the walking direction, the first walking wheel set and the third walking wheel set are respectively arranged on both sides of the first walking frame along the walking direction, and the two second walking wheel sets are respectively arranged on both sides of the second walking frame along the walking direction.

[0019] In the scheme, the first walking frame and the second walking frame facilitate the installation of the first walking wheel set, the second walking wheel set and the third walking wheel set; neither the first walking wheel set nor the third walking wheel set needs to be provided with a power component, and both are arranged in the same walking frame, which is beneficial to save the installation space of the walking frame for the installation of other elements; the two second walking wheel sets are arranged in the same walking frame, which facilitates the centralized installation of the driving mechanisms.

[0020] Preferably, the upper part and the lower part of the first walking wheel set are respectively connected with the first walking frame through first rotating assemblies, the first rotating assembly comprises a fixed part and a rotating part which are rotationally connected and can bear radial force and axial force, and one of the fixed part and the rotating part is connected with the first walking frame, and the other is connected with the upper part or the lower part of the first walking wheel set.

[0021] In the scheme, the fixed part and the rotating part are rotationally connected to realize the rotational connection between the first walking frame and the first walking wheel set, and since the fixed part and the rotating part can bear radial force and axial force, the stability of the rotational connection can be better, and then the stability of the first walking frame when walking and the stability of the rotating process of the battery replacement device can be improved.

[0022] Preferably, the front side and the rear side of the third walking wheel set along the walking direction are connected to the first walking frame through first sliding assemblies respectively, the first sliding assembly comprises a first sliding rail and a first sliding block matched with each other, one of the first sliding rail and the first sliding block is connected to the first walking frame, and the other is connected to the third walking wheel set, so that the third walking wheel set can slide relative to the first walking frame in a direction perpendicular to the walking direction; and / or the front side and the rear side of the second walking wheel set along the walking direction are connected to the second walking frame through second sliding assemblies respectively, the second sliding assembly comprises a second sliding rail and a second sliding block matched with each other, one of the second sliding rail and the second sliding block is connected to the second walking frame, and the other is connected to the second walking wheel set, so that the second walking wheel set can slide relative to the second walking frame in a direction perpendicular to the walking direction.

[0023] In the scheme, the third walking wheel set is connected to the first walking frame through the first sliding assembly, and the second walking wheel set is connected to the second walking frame through the second sliding assembly, which provides an implementation for the displacement of the battery replacement module in the horizontal plane during rotation; and the cooperation of the first sliding rail and the first sliding block and the cooperation of the second sliding rail and the second sliding block make the sliding more stable.

[0024] Preferably, the first walking frame is further provided with a first connecting seat, the front side and the rear side of the third walking wheel set are connected to the first connecting seat through the first sliding assembly respectively, and the upper side and the lower side of the first connecting seat are connected to the first walking frame through second rotating assemblies respectively; and / or the second walking frame is further provided with a second connecting seat, the front side and the rear side of the second walking wheel set are connected to the second connecting seat through the second sliding assembly respectively, and the upper side and the lower side of the second connecting seat are connected to the second walking frame through second rotating assemblies respectively.

[0025] In the scheme, the above structure makes the third walking wheel set slide relative to the first connecting seat, the second walking wheel set slide relative to the second connecting seat, and the first connecting seat and the second connecting seat rotate relative to the first walking frame and the second walking frame respectively; in addition, the front side and the rear side of the third walking wheel set are provided with the first sliding assembly, and the front side and the rear side of the second walking wheel set are provided with the second sliding assembly, so that the sliding of the third walking wheel set and the second walking wheel set is more stable, and the sliding deviating from the preset sliding track is avoided. Thus, through the cooperation of sliding and rotating, the stability and fluency of the battery replacement equipment rotating in the horizontal plane can be improved.

[0026] Preferably, the second sliding assembly is provided with a locking mechanism having a locked state and an unlocked state. When the locking mechanism is in the locked state, the relative sliding of the second sliding assembly is limited, so that when the second walking wheel set is driven, the battery swap equipment can be driven to walk along the preset track. When the locking mechanism is in the unlocked state, the second sliding assembly can slide relatively, so that when the second walking wheel set is driven, the second walking wheel set moves a preset distance along the preset track, and the battery swap equipment can be driven to rotate around the first walking wheel set in the horizontal plane to realize the alignment of the battery swap module and the battery of the battery swap vehicle.

[0027] In this scheme, during the process of walking of the battery swap equipment along the walking direction defined by the preset track to align with the battery of the battery swap vehicle, the locking mechanism is in the locked state, that is, the second sliding rail and the second sliding block of the second sliding assembly cannot slide relatively, so that the battery swap equipment does not sway during the early walking process due to the sliding of the second sliding assembly, thereby improving the stability of the battery swap equipment during walking. After the battery swap equipment walks under the battery swap vehicle, the locking mechanism is changed to the unlocked state, so that the second sliding rail and the second sliding block can slide relatively, and then the relative angle between the battery swap equipment and the battery swap vehicle is adjusted.

[0028] Preferably, the locking mechanism includes a retractable locking rod. When the locking mechanism is in the locked state, the locking rod extends from the original position and abuts or inserts into the second sliding rail at a preset position to limit the relative movement of the second sliding rail and the second sliding block. When the locking mechanism is in the unlocked state, the locking rod is retracted to the original position.

[0029] In this scheme, by setting the locking rod to be retractable, the switching between the locked state and the unlocked state of the locking mechanism is realized, and the control of whether the second sliding assembly can slide is also realized. When the locking rod extends and presses the second sliding rail, the friction force prevents the second sliding block from sliding relative to the second sliding rail, or the locking rod is inserted into the second sliding rail to further improve the reliability of limiting the sliding of the second sliding assembly.

[0030] Preferably, the extension direction of the locking rod is directed to the side surface of the second sliding rail, and the end shape of the locking rod matches the shape of the side surface of the second sliding rail or the second sliding rail is provided with a locking hole for the insertion of the locking rod; and / or, the locking rod has two, and the two locking rods are respectively arranged on the upper and lower side surfaces of the second sliding rail.

[0031] In the scheme, two locking rods act on the second slide rail from the upper and lower sides of the second slide rail respectively, so that the two locking rods can clamp the second slide rail during locking, so that the friction is larger, and the locking effect is better. The shape of the end of the locking rod cooperates with the shape of the side of the second slide rail, so that the locking of the locking rod and the second slide rail is more firm, which is beneficial to further improve the locking effect of the locking rod and avoid the locking rod from separating from the second slide rail. Alternatively, the locking effect is further improved through the pin hole cooperation mode of the locking rod and the locking hole.

[0032] Preferably, the first walking frame is provided with a stop component, and the stop component is arranged between the first walking frame and the first connecting seat; and / or the second walking frame is provided with a stop component, and the stop component is arranged between the second walking frame and the second connecting seat.

[0033] The stop component has a locking state and an unlocking state, and is used to lock or unlock the relative rotation state between the first walking frame and the first connecting seat or the relative rotation state between the second walking frame and the second connecting seat.

[0034] In the scheme, the first connecting seat can lock the relative position between the first connecting seat and the first walking frame through the stop component when the battery replacement device moves, thereby avoiding the occurrence of the rotating movement of the first and third walking wheel sets, and the second connecting seat can lock the relative position between the second connecting seat and the second walking frame through the stop component when the battery replacement device moves, thereby avoiding the occurrence of the rotating movement of the second walking wheel set, so that the battery replacement device is more stable when moving and will not shake due to rotation. When the battery replacement device needs to adjust the posture and align with the electric vehicle, the first connecting seat and the second connecting seat can move relative to the first walking frame and the second walking frame by unlocking the stop component, so that the battery replacement device can be twisted to align with the battery replacement vehicle, facilitating the disassembly and assembly of the battery.

[0035] Preferably, the first connecting seat has a first gap between the front and back sides of the walking direction and the first walking frame, and / or the second connecting seat has a second gap between the front and back sides of the walking direction and the second walking frame.

[0036] The stop component includes a retractable wedge-shaped block, when the stop component is in the locking state, the wedge-shaped block extends from the original position into the first gap to limit the relative rotation between the first connecting seat and the first walking frame; and / or the wedge-shaped block extends from the original position into the second gap to limit the relative rotation between the second connecting seat and the second walking frame, when the stop component is in the unlocking state, the wedge-shaped block retracts to the original position to release the first gap and / or the second gap.

[0037] In the scheme, a first gap exists between the first connecting seat and the first walking frame, and / or a second gap exists between the second connecting seat and the second walking frame, the first gap and / or the second gap can have a rotating degree of freedom, the stop assembly is arranged at the front and rear positions of the first connecting seat and the second connecting seat, and a retractable wedge-shaped block is used, the narrower end of the wedge-shaped block faces the first gap and / or the second gap, in the locked state, the wedge-shaped block is extended and clamped into the gap, so that the first connecting seat and the first walking frame and the second connecting seat and the second walking frame have no rotating degree of freedom and cannot rotate, and in the unlocked state, the wedge-shaped block is retracted to the original position, releasing the first gap and / or the second gap, so that the first connecting seat can rotate relative to the first walking frame, and the second connecting seat can rotate relative to the second walking frame.

[0038] Preferably, the first walking wheel set, the second walking wheel set and the third walking wheel set each have a wheel that can walk along the preset track, and the wheel is a groove wheel with lower edges on both sides that can cooperate with the preset track; or, the first walking wheel set, the second walking wheel set and the third walking wheel set are each connected with a walking retaining mechanism, and the walking retaining mechanism is arranged across the preset track, so that the wheels of the first walking wheel set, the second walking wheel set and the third walking wheel set are limited to walk on the preset track.

[0039] In the scheme, the wheel is a groove wheel, and the groove wheel is clamped with the preset track, so that the structure of the battery replacement equipment is more compact; or, the wheels are limited on the track by connecting the walking retaining mechanism with the wheels; by using any one of the above structural forms, it can be ensured that the wheels of the first walking wheel set, the second walking wheel set and the third walking wheel set will not fall off or deviate from the preset track when moving along the preset guide rail, thereby further ensuring the walking stability of the battery replacement equipment and ensuring the advancing route of the battery replacement equipment.

[0040] Preferably, the walking retaining mechanism includes a plurality of limiting parts arranged across both sides of the preset track and a mounting part for mounting the limiting parts, the mounting part is arranged across the preset track along the width direction of the preset track and connected with the plurality of limiting parts on both sides of the preset track, and the limiting parts are rotatably arranged so as to roll along the side wall of the preset track during walking of the battery replacement equipment along the preset track.

[0041] In the scheme, the mounting part of the walking retaining mechanism is used to connect the first walking wheel set, the second walking wheel set and the third walking wheel set, thereby ensuring the reliability of the connection; the limiting part of the walking retaining mechanism can roll along the side wall of the preset track, thereby reducing the friction on the preset track and ensuring the limiting of the walking of the wheels of the first walking wheel set, the second walking wheel set and the third walking wheel set.

[0042] Preferably, the mounting portion comprises a mounting plate located above the preset track and extension plates extending downward from both sides of the mounting plate to both sides of the preset track, the extension plates being used to connect the limiting portion, and the mounting plate having a wheel accommodating area for accommodating the wheels of the battery replacing device, so that the wheels are in contact with the upper surface of the preset track and walk on the preset track.

[0043] In this scheme, the extension plates facilitate the installation of the limiting portion, and the wheel accommodating area of the mounting plate facilitates the wheels to be in contact with the surface of the preset track and walk on the preset track, and the overall structure is more compact.

[0044] Preferably, the battery replacing device further comprises an electrical element for controlling the movement of the first walking module, the second walking module and the battery replacing module.

[0045] The electrical element is at least partially arranged in the first walking frame; and / or,

[0046] The battery replacing device further comprises an electrical frame connected to the first walking frame, and the electrical element is partially arranged in the electrical frame.

[0047] In this scheme, the movement of the first walking module, the second walking module and the battery replacing module is controlled by the electrical element, thereby realizing the automatic movement of the battery replacing device; since the first walking wheel set does not need to be provided with a driving component, the walking frame where the first walking wheel set is located can leave a mounting area to mount part of the electrical element, the space of the first walking frame can be fully utilized, and the component arrangement is more compact; or, the electrical frame is provided to facilitate the installation of the electrical element and to have a certain protective effect on the electrical element.

[0048] Preferably, the number of lifting mechanisms is two, and the two lifting mechanisms are symmetrically arranged on both sides of the battery replacing platform along the walking direction.

[0049] In this scheme, when driving the battery replacing platform, the two lifting mechanisms can disperse the support force supporting the battery replacing platform, increase the contact points with the battery replacing platform, and thereby enhance the stability and stability of the battery replacing platform in the height direction when carrying the battery pack, and avoid damage to the battery pack due to uneven stress on the battery replacing platform.

[0050] Preferably, the lifting mechanism comprises:

[0051] A driving assembly arranged on the side of the partition plate away from the battery replacing platform and located in the side portion area, for providing power to the lifting mechanism to lift the battery replacing platform;

[0052] The lifting assembly is arranged on one side of the partition plate close to the battery swapping platform and in the middle area, and is connected with the battery swapping platform to drive the battery swapping platform to move up and down along the height direction of the frame body;

[0053] The transmission assembly is arranged through the partition plate, and is connected between the driving assembly and the lifting assembly to enable the driving assembly to drive the lifting assembly to move up and down.

[0054] In the scheme, the driving assembly and the transmission assembly are arranged to ensure the stability of the lifting assembly in driving the battery swapping platform to move. Meanwhile, the transmission assembly is arranged between the driving assembly and the lifting assembly to ensure the synchronization of the driving assembly and the lifting assembly in operation and the stability of the driving assembly and the lifting assembly in operation, and the operation speed of the lifting assembly can be changed by regulating the operation of the driving assembly, thereby ensuring the consistency of the battery swapping platform in being regulated to move up and down by the lifting assemblies on two sides.

[0055] Preferably, the transmission assembly comprises:

[0056] The connecting part is sleeved on the power output shaft of the driving assembly at one end and extends to the middle area through the partition plate at the other end;

[0057] The transmission part is arranged on the partition plate in the middle area and is connected with the other end of the connecting part, so as to be driven by the driving assembly to move back and forth along the direction perpendicular to the walking direction;

[0058] The lifting assembly comprises:

[0059] The lifting part is connected with the transmission part at one end and with the battery swapping platform at the other end, and the transmission part drives the lifting part to move back and forth along the direction perpendicular to the walking direction, so that the battery swapping platform can move up and down along the height direction relative to the frame body.

[0060] In the scheme, the connecting part and the transmission part are arranged on the driving assembly and the partition plate respectively, and are connected with each other and can move synchronously in a straight line, so that the power conversion of the driving assembly in driving the lifting assembly is accurately and stably realized, and the implementation is more convenient and simple. Meanwhile, the lifting part is arranged to realize the stability and reliability of the lifting operation of the battery swapping platform, so that the battery swapping device can be lifted to a position suitable for disassembling and assembling batteries to disassemble and assemble the batteries on the battery swapping vehicle. Further, the battery swapping platform can be lifted to different heights to meet different heights of automobile chassis and enhance the applicability.

[0061] Preferably, the connecting part comprises:

[0062] The positioning structure is sleeved on the power output shaft of the driving assembly and is threadedly connected with the power output shaft, so that the positioning structure moves along the extension direction of the power output shaft.

[0063] The two recesses are symmetrically arranged on two sides of the positioning structure along the movement direction of the positioning structure, accommodate the protrusions on the two sides of the positioning structure, and extend away from the positioning structure and do not exceed the maximum thickness of the recesses.

[0064] The limiting plate is located on one side of the connecting part close to the transmission part and is slidably connected with the partition plate along the movement direction of the positioning structure, one end of the limiting plate is connected with the two recesses, and the other end of the limiting plate penetrates through the partition plate and is connected with the transmission part.

[0065] In the scheme, the transmission part moves in the same direction with the positioning structure through the cooperation between the positioning structure, the recesses and the limiting plate, and the reliability and stability of the transmission are ensured. Meanwhile, the two protrusions of the positioning structure are limited and fixed by the recesses, the concave-convex structure only limits in the movement direction, the transmission effect of enhancing the linear movement of the connecting part along the extension direction of the power output shaft is achieved, and the freedom degree of the positioning structure in the non-movement direction is ensured, the protrusions do not interfere with the linear movement of the connecting part in the straight line direction due to the contact between the positioning structure and the recesses, and the structure form also avoids the contact between the positioning structure and the recesses.

[0066] Preferably, at least one side of the protrusion is gap-fitted with the recess along the movement direction of the positioning structure; and / or the side wall of the protrusion in contact with the recess along the movement direction of the positioning structure is provided as a circular arc surface, and the circular arc surface has an axis direction along the extension direction of the protrusion.

[0067] In the scheme, the above structure is provided so that the protrusion is not completely fixed in the recess, the protrusion can be conveniently installed and removed, and can be conveniently rotated in the recess and other irrelevant linear motion directions, so that the protrusion can be conveniently adjusted; and the side wall of the protrusion in contact with the recess is provided as a circular arc surface, so that even if there is a certain deviation between the protrusion and the recess in the rotation direction around the axis of the protrusion due to assembly error, the gap between the protrusion and the recess in the linear motion direction can always be kept equal, the assembly requirement is reduced, and the consistency of the transmission between the positioning structure and the transmission part is ensured.

[0068] Preferably, the transmission part comprises a gear and a rack engaged with each other, the rack is movably arranged on the partition plate, and the rack is fixedly engaged with a tooth block arranged at the other end of the limiting plate, so that the rack can be driven by the driving assembly to move back and forth along the vertical direction of the walking direction; during the forward and backward movement of the rack, the lifting member drives the battery replacement platform to rise and fall along with the rotation of the gear.

[0069] In this scheme, the precision of transmission is enhanced by the engagement of the gear and the rack, the synchronization of the operation of the gear and the driving mechanism is ensured, the speed of the rotation of the gear can be changed by adjusting the operation of the power output shaft of the driving mechanism, further, the engagement of the gear and the rack also ensures the stability of the operation of the gear, thereby ensuring the stability of the lifting of the battery replacement platform. At the same time, the reliability and synchronization between the connecting part and the transmission part are improved by the engagement of the tooth block and the rack.

[0070] Preferably, the number of gears is two, the two gears are arranged along the extension direction of the rack and located at the two ends of the rack and coaxially arranged with the lifting member.

[0071] In this scheme, two gears are arranged on the side of the battery replacement platform perpendicular to the walking direction, and multiple gears can balance the stress of the battery replacement platform when driving the battery replacement platform, increase the contact points with the battery replacement platform, and further enhance the stability and stability of the movement of the battery replacement platform in the height direction when carrying the battery pack, avoiding uneven stress of the battery replacement platform and causing damage to the battery pack.

[0072] Preferably, the lifting mechanism further comprises:

[0073] The guide member is at least two, arranged on the side of the battery replacement platform along the length direction and / or width direction of the frame body for guiding the lifting of the battery replacement platform.

[0074] In this scheme, by arranging guide members on the opposite sides or around the battery replacement platform, the stability and reliability of the lifting operation of the battery replacement platform are realized, so that the battery replacement equipment can be lifted to a position suitable for disassembling and assembling batteries to disassemble and assemble the batteries on the battery replacement vehicle. Further, the battery replacement platform can be further lifted to different heights to meet different heights of automobile chassis and enhance the universality of use.

[0075] Preferably, the guide member comprises a first connecting rod and a second connecting rod hinged to each other;

[0076] One end of the first connecting rod is rotatably connected to the frame body, and the other end is slidably connected to the battery replacement platform;

[0077] One end of the second connecting rod is slidably connected to the battery exchange platform, and the other end is rotatably connected to the frame body, so that the guide member can be expanded or retracted with the battery exchange platform during the lifting and lowering process to guide the battery exchange platform to rise and fall in the height direction.

[0078] In this solution, the above-mentioned structural form enhances the flexibility of the guide member's connection to the frame body and the battery swap platform, making the height of the battery swap platform adjustable. This satisfies the battery swap platform's ability to swap batteries for electric vehicles with different chassis heights, thereby enhancing the versatility of the battery swap equipment. At the same time, the overall height of the guide member of this structure is relatively low, which helps to reduce the height of the entire battery swap equipment. In the case of chassis-type battery swapping, the space under the vehicle is limited, and the battery pack size of heavy trucks is relatively large, requiring a low-height battery swap equipment to adapt.

[0079] Preferably, the battery swap platform includes:

[0080] A support frame is located at the bottom of the battery exchange platform, and a matching portion for matching with the lifting mechanism is provided on the side wall of the support frame facing the partition plate, so that the support frame can be driven by the lifting mechanism to rise and fall;

[0081] and, a first layer plate and a second layer plate respectively located above the supporting frame and movably connected to the supporting frame, wherein the first layer plate is located above the second layer plate;

[0082] The first layer is provided with a battery positioning column for positioning the battery pack on the battery swap vehicle and an unlocking mechanism for unlocking the battery pack;

[0083] The second layer plate is provided with a vehicle positioning column for positioning with the battery-swap vehicle. The second layer plate has an extension portion extending out of the frame body along a direction perpendicular to the walking direction, and the vehicle positioning column is arranged on the extension portion of the second layer plate.

[0084] In the scheme, the structure form is adopted, which further enhances the accuracy of the connection between the battery pack and the battery replacement vehicle chassis, improves the matching degree of the battery and the bottom of the battery replacement vehicle in the battery replacement process, guarantees the fastening of the battery connected to the battery replacement vehicle, and only sets the second layer plate to the extension part, so that the size of the whole battery replacement equipment in other areas does not need to be increased, and the positioning with the battery pack is met, and the cost is saved. Further, by arranging the first layer plate and the second layer plate to be staggered in the horizontal direction and the height direction, the height difference between the first layer plate and the second layer plate can be further reduced, so as to realize the purpose of reducing the whole battery replacement platform, so that the height of the battery replacement equipment is further compressed to meet the minimum height requirement of the heavy truck battery replacement. At the same time, the battery positioning column and the vehicle positioning column are respectively arranged on the first layer plate and the second layer plate, and the battery pack and the battery replacement vehicle are respectively positioned, so that the battery replacement equipment can be accurately positioned to the battery pack, so that the battery can be effectively disassembled and installed.

[0085] Preferably, a guide mechanism and a moving mechanism are arranged on the support frame, the guide mechanism comprises guide rails perpendicular to the walking direction and two third sliding blocks and two fourth sliding blocks arranged on the guide rails, the third sliding blocks are connected to the first layer plate, the fourth sliding blocks are connected to the second layer plate, and the two third sliding blocks are arranged on the front side and the rear side of the two fourth sliding blocks in the unlocking direction;

[0086] The length of the second layer plate in the extension direction of the guide rail is shorter than that of the first layer plate, or at least one end of the second layer plate in the extension direction of the guide rail is provided with a avoiding area to facilitate the connection of the first layer plate and the two third sliding blocks,

[0087] The moving mechanism comprises:

[0088] A first moving unit is arranged on the support frame and connected and drives the first layer plate to reciprocate in the extension direction of the guide rail;

[0089] A second moving unit is arranged on the support frame and connected and drives the second layer plate to reciprocate in the extension direction of the guide rail;

[0090] The second layer plate is provided with an avoiding groove for the connecting piece of the first layer plate to pass through and be connected with the first moving unit.

[0091] In the scheme, the first layer plate and the second layer plate are simultaneously supported by the support frame, and by designing the sizes of the second layer plate and the first layer plate to be different, or by providing an avoiding area on the second layer plate, the first layer plate and the second layer plate are respectively connected to a single guide rail through different sliding blocks, the number of guide rails is effectively reduced, space is saved, and the design requirements of the guide mechanism and the first layer plate and the second layer plate in terms of compact structure and reducing the height of components are further met. At the same time, the first moving unit and the second moving unit for driving the first layer plate and the second layer plate to move are arranged side by side on the support frame, and the second layer plate is provided with an avoiding groove to facilitate the connection of the first layer plate above the second layer plate with the first moving unit, so that the connection of the moving mechanism and the first layer plate and the second layer plate is convenient, the design requirements of compact structure and reducing the height of components are met, and the height reduction of the entire battery replacement equipment is further realized.

[0092] Preferably, the cross beam comprises a first area corresponding to the protruding portion and a second area located on both sides of the protruding portion, the height of the first area is lower than the height of the second area, so that when the battery replacement platform is not lifted, the first layer plate is lower than the second area.

[0093] In the scheme, the first area has a difference in height relative to the second area, so that the middle area has a larger accommodation space in the height direction, the compression limit of the battery replacement platform in the height direction is increased, and the minimum height requirement of heavy truck battery replacement is further met.

[0094] An assembly method of a battery replacement equipment, suitable for the above-mentioned battery replacement equipment, the assembly method comprises the following steps:

[0095] The lifting mechanism and the battery replacement platform are installed in the frame body to form a battery replacement module;

[0096] The first walking wheel set is assembled to form a first walking module;

[0097] The second walking wheel set is assembled to form a second walking module;

[0098] The first walking module and the second walking module are respectively installed on both sides of the battery replacement module along the walking direction to form the battery replacement equipment.

[0099] In the present scheme, the battery replacement device is assembled in a modular manner. Since the overall structure of each module is relatively small, it is convenient to assemble. The required corresponding mechanisms are assembled into each module, which can reduce the complexity of assembly and the possibility of errors. At the same time, the modules can be assembled according to the connection relationship and position relationship between the modules. The workers can assemble the modules as needed according to the actual situation, which enhances the flexibility of assembling and debugging individual modules. Further, after installing other components in the corresponding modules according to the actual situation, the modules are assembled together according to the connection relationship and position relationship between the components in the modules, which can save the space occupied by the on-site assembly before the modules are assembled together.

[0100] Preferably, the steps of installing the lifting mechanism and the battery replacement platform in the frame body to form the battery replacement module, assembling the first set of walking wheels to form the first walking module, and assembling the second set of walking wheels to form the second walking module are implemented simultaneously.

[0101] In the present scheme, by implementing the above three steps simultaneously, the efficiency of workers assembling the battery replacement device is improved. Multiple workers can assemble the modules simultaneously to reduce the total time spent on assembling the battery replacement device and shorten the production cycle. At the same time, before the modules are assembled together, different assembly workers can install the corresponding mechanisms in the corresponding positions inside the modules, which facilitates the subsequent assembly workers to directly assemble the modules according to the positions of the corresponding mechanisms inside the modules. The installation difficulty is relatively low, and the modules can be easily debugged after installation.

[0102] Preferably, the frame body includes two opposite cross beams and two opposite longitudinal beams arranged around, and two partition plates parallel to the longitudinal beams and connected with the cross beams. The partition plates divide the frame module into a middle area and side areas symmetrically arranged on both sides of the middle area. The lifting mechanism is connected to the partition plates, and the lifting mechanism is partially located in the side areas and partially located in the middle area. The battery replacement platform is arranged in the middle area and connected with the lifting mechanism, so that the battery replacement platform can be lifted by the lifting mechanism to ascend and descend relative to the frame body to replace the battery for the battery replacement vehicle.

[0103] The assembly method specifically includes the following steps in the step of installing the lifting mechanism and the battery replacement platform in the frame body to form the battery replacement module:

[0104] The two cross beams and the two longitudinal beams are arranged opposite to each other and connected around;

[0105] The two partition plates are arranged parallel to the longitudinal beams and connected with the cross beams;

[0106] The lifting mechanism is connected with the partition plates;

[0107] The battery replacing platform is arranged in the middle area and connected with the lifting mechanism.

[0108] In the scheme, the frame structure is surrounded by two cross beams and two longitudinal beams, and the frame structure is divided into areas by two partition plates, which facilitates the installation of the lifting mechanism and the battery replacing platform, makes the battery replacing device structure more compact, and is beneficial to improve the assembly efficiency of the battery replacing device.

[0109] Preferably, the first walking module further comprises a third walking wheel set, and the first walking wheel set and the third walking wheel set are oppositely arranged on two sides of the battery replacing device parallel to the walking direction.

[0110] The assembly method specifically comprises the following steps in the step of assembling the first walking wheel set to form the first walking module:

[0111] The third walking wheel set of the first walking module is mounted on the side of the battery replacing device opposite to the first walking wheel set and parallel to the walking direction.

[0112] In the scheme, the third walking wheel set is arranged in the first walking module, and the first walking wheel set and the third walking wheel set are oppositely arranged, which is beneficial to ensure the stability of the walking of the battery replacing device.

[0113] Preferably, the two second walking wheel sets are oppositely arranged on two sides of the battery replacing device parallel to the walking direction.

[0114] The assembly method specifically comprises the following steps in the step of assembling the second walking wheel set to form the second walking module:

[0115] The two second walking wheel sets are oppositely mounted on two sides of the battery replacing device parallel to the walking direction.

[0116] In the scheme, the two second walking wheel sets are arranged on two sides of the battery replacing device parallel to the walking direction, which is beneficial to ensure the stability of the walking of the battery replacing device.

[0117] Preferably, one of the two second walking wheel sets is provided with a driving mechanism, and the second walking wheel set provided with the driving mechanism is located at a diagonal position with the first walking wheel set; and / or, the two second walking wheel sets are independently provided with driving mechanisms.

[0118] The assembly method specifically comprises the following steps in the step of assembling the second walking wheel set to form the second walking module:

[0119] A driving mechanism is installed in the second walking wheel set diagonally opposite to the first walking wheel set; and / or, a driving mechanism is independently installed in each of the two second walking wheel sets.

[0120] In this solution, when one of the two second walking wheel sets is provided with a driving mechanism, the rotating torque can be applied to the battery swap module by this second walking wheel set, so that the battery swap module can rotate in the horizontal plane with the first walking wheel set as the fulcrum; when both of the second walking wheel sets are provided with driving mechanisms, the rotating power of the battery swap device can be increased, and the application range of the battery swap device can be increased.

[0121] Preferably, the first walking module further comprises a first walking frame, and the second walking module further comprises a second walking frame, the first walking frame and the second walking frame are oppositely arranged on two sides of the battery swap module perpendicular to the walking direction, the first walking wheel set and the third walking wheel set are respectively arranged on two sides of the first walking frame along the walking direction, and the two second walking wheel sets are respectively arranged on two sides of the second walking frame along the walking direction.

[0122] The assembly method further comprises the following steps in the step of assembling the first walking wheel set to form the first walking module:

[0123] The first walking wheel set and the third walking wheel set are respectively arranged on two sides of the first walking frame along the walking direction.

[0124] The first walking frame is connected to one side of the battery swap module perpendicular to the walking direction.

[0125] And, the assembly method further comprises the following steps in the step of assembling the second walking wheel set to form the second walking module:

[0126] The two second walking wheel sets are respectively arranged on two sides of the second walking frame along the walking direction.

[0127] The second walking frame is connected to the other side of the battery swap module perpendicular to the walking direction.

[0128] In this solution, the first walking module and the second walking module are respectively assembled, and then the first walking module and the second walking module are arranged on two sides of the battery swap module perpendicular to the walking direction, which can save the space occupied by on-site assembly before the modules are assembled with each other, and facilitate to improve the assembly efficiency.

[0129] Preferably, the upper side and the lower side of the first walking wheel set are connected to the first walking frame through first rotating assemblies respectively, the first rotating assembly comprises a fixed part and a rotating part which are connected to each other in a rotating manner and can bear radial force and axial force, and one of the fixed part and the rotating part is connected to the first walking frame, and the other is connected to the upper side or the lower side of the first walking wheel set;

[0130] The assembling method further comprises the following steps in the step of mounting the first walking wheel set and the third walking wheel set on the two sides of the first walking frame respectively along the walking direction:

[0131] The first rotating assembly is mounted on the upper side and the lower side of the first walking wheel set respectively;

[0132] One of the fixed part and the rotating part of the first rotating assembly is connected to the first walking wheel set;

[0133] The other of the fixed part and the rotating part of the first rotating assembly is connected to the first walking frame.

[0134] In the scheme, the rotating connection between the first walking frame and the first walking wheel set is realized through the fixed part and the rotating part which are connected to each other in a rotating manner, and the stability of the rotating connection is better due to that the fixed part and the rotating part can bear radial force and axial force, thereby the stability of the first walking frame during walking is improved.

[0135] Preferably, the front side and the rear side of the third walking wheel set along the walking direction are connected to the first walking frame through first sliding assemblies respectively, the first sliding assembly comprises a first sliding rail and a first sliding block which cooperate with each other, one of the first sliding rail and the first sliding block is connected to the first walking frame, and the other is connected to the third walking wheel set, so that the third walking wheel set can slide relative to the first walking frame along a direction perpendicular to the walking direction; and / or the front side and the rear side of the second walking wheel set along the walking direction are connected to the second walking frame through second sliding assemblies respectively, the second sliding assembly comprises a second sliding rail and a second sliding block which cooperate with each other, one of the second sliding rail and the second sliding block is connected to the second walking frame, and the other is connected to the second walking wheel set, so that the second walking wheel set can slide relative to the second walking frame along a direction perpendicular to the walking direction;

[0136] The assembling method further comprises the following steps in the step of mounting the first walking wheel set and the third walking wheel set on the two sides of the first walking frame respectively along the walking direction:

[0137] The first sliding assembly is mounted on the front side and the rear side of the third walking wheel set along the walking direction respectively;

[0138] One of the first slide rail and the first slider in the first sliding assembly is connected with the first walking frame, and the other is connected with the third walking wheel set;

[0139] The assembly method further comprises the following steps in the step of mounting two second walking wheel sets on two sides of the second walking frame along the walking direction respectively:

[0140] The second sliding assembly is mounted on the front side and the rear side of the second walking wheel set along the walking direction respectively;

[0141] One of the second slide rail and the second slider of the second sliding assembly is connected with the second walking frame, and the other is connected with the second walking wheel set.

[0142] In the scheme, the third walking wheel set is connected with the first walking frame through the first sliding assembly, and the second walking wheel set is connected with the second walking frame through the second sliding assembly, which provides an implementation manner for the displacement of the battery replacement module in the horizontal plane during rotation; and the cooperation of the first slide rail and the first slider and the cooperation of the second slide rail and the second slider make the sliding more stable.

[0143] Preferably, the first walking frame is further provided with a first connecting seat, the front side and the rear side of the third walking wheel set are connected with the first connecting seat through the first sliding assembly respectively, and the upper side and the lower side of the first connecting seat are connected with the first walking frame through a second rotating assembly respectively; and / or, the second walking frame is further provided with a second connecting seat, the front side and the rear side of the second walking wheel set are connected with the second connecting seat through the second sliding assembly respectively, and the upper side and the lower side of the second connecting seat are connected with the second walking frame through a second rotating assembly respectively.

[0144] The assembly method further comprises the following steps in the step of mounting the first walking wheel set and the third walking wheel set on two sides of the first walking frame along the walking direction respectively:

[0145] The first sliding assembly on the front side and the rear side of the third walking wheel set is connected with the first connecting seat respectively;

[0146] The first connecting seat is connected with the first walking frame by mounting the second rotating assembly on the upper side and the lower side of the first connecting seat; and / or,

[0147] The assembly method further comprises the following steps in the step of mounting two second walking wheel sets on two sides of the second walking frame along the walking direction respectively:

[0148] The second sliding assembly on the front side and the rear side of the second walking wheel set is connected with the second connecting seat respectively;

[0149] The second connecting seat is rotationally connected with the second walking frame by installing the second rotating assembly above and below the second connecting seat.

[0150] In the scheme, the third walking wheel set can slide relative to the first connecting seat, the second walking wheel set can slide relative to the second connecting seat, and the first connecting seat and the second connecting seat can rotate relative to the first walking frame and the second walking frame respectively; in addition, the front and rear sides of the third walking wheel set are provided with first sliding assemblies, and the front and rear sides of the second walking wheel set are provided with second sliding assemblies, so that the sliding of the third walking wheel set and the second walking wheel set is more stable, and deviation from the preset sliding track is avoided.

[0151] Preferably, the second sliding assembly is provided with a locking mechanism having a locked state and an unlocked state; when the locking mechanism is in the locked state, the relative sliding of the second sliding assembly can be limited, so that when the second walking wheel set is driven, the battery swap equipment can be driven to walk along the preset track; when the locking mechanism is in the unlocked state, the second sliding assembly can slide relative to the second sliding assembly, so that when the second walking wheel set is driven, the second walking wheel set moves a preset distance along the preset track, and the battery swap equipment can be driven to rotate in the horizontal plane with the first walking wheel set as the fulcrum, so as to realize the alignment of the battery swap module and the battery of the battery swap vehicle.

[0152] The assembly method further comprises the following steps in the step of installing two second walking wheel sets on the two sides of the second walking frame along the walking direction:

[0153] The locking mechanism is installed in the second sliding assembly, so that when the locking mechanism is in the locked state, the relative sliding of the second sliding assembly can be limited; when the locking mechanism is in the unlocked state, the second sliding assembly can slide relative to the second sliding assembly.

[0154] In the scheme, during the process that the battery swap equipment walks along the walking direction defined by the preset track to align with the battery of the battery swap vehicle, the locking mechanism is in the locked state, that is, the second sliding rail and the second sliding block of the second sliding assembly cannot slide relative to each other, so that the battery swap equipment does not shake during the early walking process due to the sliding of the second sliding assembly, thereby improving the stability of the battery swap equipment during walking; after the battery swap equipment walks to the position below the battery swap vehicle, the locking mechanism is changed to the unlocked state, so that the second sliding rail and the second sliding block can slide relative to each other, and then the relative angle between the battery swap equipment and the battery swap vehicle is adjusted.

[0155] Preferably, the locking mechanism comprises a retractable locking rod, which extends from an original position and abuts against or inserts into the second slide rail at a preset position to limit the relative movement between the second slide rail and the second slider when the locking mechanism is in the locked state; and which retracts to the original position when the locking mechanism is in the unlocked state.

[0156] The assembly method further comprises the following steps in the step of installing the locking mechanism in the second sliding assembly:

[0157] The locking rod is installed in the locking mechanism such that the locking rod extends from an original position and abuts against or inserts into the second slide rail at a preset position to limit the relative movement between the second slide rail and the second slider when the locking mechanism is in the locked state; and the locking rod retracts to the original position when the locking mechanism is in the unlocked state.

[0158] In this solution, the locking mechanism is switched between the locked state and the unlocked state by setting the locking rod as retractable, thereby achieving the control of the sliding of the second sliding assembly. When the locking rod extends and presses the second slide rail, the second slider is prevented from sliding relative to the second slide rail by friction, or the locking rod is inserted into the second slide rail to further improve the reliability of the sliding of the second sliding assembly.

[0159] Preferably, the extension direction of the locking rod is directed to the side surface of the second slide rail, and the end of the locking rod is shaped to match the shape of the side surface of the second slide rail or the second slide rail is provided with a locking hole for the insertion of the locking rod; and / or, there are two locking rods, which are respectively arranged on the upper and lower side surfaces of the second slide rail.

[0160] The assembly method further comprises the following steps in the step of installing the locking rod in the locking mechanism:

[0161] The extension direction of the locking rod is directed to the side surface of the second slide rail; and / or, the locking rod is arranged on the upper and lower side surfaces of the second slide rail.

[0162] In this solution, the two locking rods act on the second slide rail from the upper and lower sides of the second slide rail, so that the two locking rods can clamp the second slide rail during the locking process, so that the friction is greater and the locking effect is better. The shape of the end of the locking rod matches the shape of the side surface of the second slide rail, so that the locking rod and the second slide rail are more firmly engaged, which is conducive to further improving the locking effect of the locking rod and avoiding the disengagement of the locking rod from the second slide rail. Alternatively, the locking effect is further improved by the pin hole cooperation between the locking rod and the locking hole.

[0163] Preferably, the first walking frame is provided with a stop component arranged between the first walking frame and the first connecting seat, and / or the second walking frame is provided with a stop component arranged between the second walking frame and the second connecting seat; the stop component has a locking state and an unlocking state, respectively used for locking or unlocking the relative rotation state between the first walking frame and the first connecting seat or the relative rotation state between the second walking frame and the second connecting seat.

[0164] The assembly method further comprises the following steps in the step of mounting the first walking wheel set and the third walking wheel set on both sides of the first walking frame along the walking direction:

[0165] mounting the stop component between the first walking frame and the first connecting seat; and / or,

[0166] mounting the stop component between the second walking frame and the second connecting seat.

[0167] In this scheme, the first connecting seat can lock the relative position between the first connecting seat and the first walking frame when the battery replacement device moves through the stop component, thereby avoiding the occurrence of the rotating movement of the first walking wheel set and the third walking wheel set, and the second connecting seat can lock the relative position between the second connecting seat and the second walking frame when the battery replacement device moves through the stop component, thereby avoiding the occurrence of the rotating movement of the second walking wheel set, so that the battery replacement device is more stable when moving and will not shake due to rotation. When the battery replacement device needs to adjust the posture and align with the electric vehicle, the first connecting seat and the second connecting seat can move relative to the first walking frame and the second walking frame by unlocking the stop component, so that the battery replacement device can be twisted to align with the battery replacement vehicle, facilitating the disassembly and assembly of the battery.

[0168] Preferably, the first connecting seat has a first gap between the front and back sides of the first connecting seat along the walking direction and the first walking frame, and / or the second connecting seat has a second gap between the front and back sides of the second connecting seat along the walking direction and the second walking frame; the stop component comprises a telescopic wedge-shaped block, when the stop component is in the locking state, the wedge-shaped block extends from the original position into the first gap to limit the relative rotation between the first connecting seat and the first walking frame; and / or the wedge-shaped block extends from the original position into the second gap to limit the relative rotation between the second connecting seat and the second walking frame, when the stop component is in the unlocking state, the wedge-shaped block retracts to the original position to release the first gap and / or the second gap;

[0169] The assembly method specifically comprises the following steps in the step of mounting the stop component between the first walking frame and the first connecting seat:

[0170] respectively installing the stop assembly at the first gap between the first connecting seat and the first walking frame on the front and back sides of the walking direction;

[0171] respectively installing the stop assembly at the first gap between the first connecting seat and the first walking frame on the front and back sides of the walking direction;

[0172] respectively installing the stop assembly at the first gap between the first connecting seat and the first walking frame on the front and back sides of the walking direction.

[0173] In the present scheme, the first gap between the first connecting seat and the first walking frame and / or the second gap between the second connecting seat and the second walking frame has a degree of freedom of rotation, the stop assembly is arranged at the front and back sides of the first connecting seat and the second connecting seat, and a retractable wedge-shaped block is used, the narrower end of which faces the first gap and / or the second gap. In the locked state, the wedge-shaped block is extended and clamped into the first gap and / or the second gap, so that the first connecting seat and the first walking frame and the second connecting seat and the second walking frame have no degree of freedom of rotation and cannot rotate. In the unlocked state, the wedge-shaped block is retracted to the original position, releasing the first gap and / or the second gap, so that the first connecting seat can rotate relative to the first walking frame, and the second connecting seat can rotate relative to the second walking frame.

[0174] Preferably, the first walking wheel set, the second walking wheel set and the third walking wheel set each have a wheel that can walk along the preset track, and the wheel is a groove wheel with a lower edge on both sides that can cooperate with the preset track.

[0175] The assembly method includes the following steps in the steps of assembling the first walking wheel set to form the first walking module and assembling the second walking wheel set to form the second walking module:

[0176] The wheels are installed in the first walking wheel set, the second walking wheel set and the third walking wheel set.

[0177] The wheels are engaged with the preset track.

[0178] Or, the first walking wheel set, the second walking wheel set and the third walking wheel set have wheels that can walk along the preset track and walking retaining mechanisms connected to the wheels, and the walking retaining mechanisms are arranged across the preset track, so that the wheels of the first walking wheel set, the second walking wheel set and the third walking wheel set are limited to walk on the preset track.

[0179] The assembling method comprises the following steps in the steps of assembling the first walking wheel set to form the first walking module and assembling the second walking wheel set to form the second walking module:

[0180] The wheels are installed in the first walking wheel set, the second walking wheel set and the third walking wheel set;

[0181] The first walking wheel set, the second walking wheel set and the third walking wheel set are connected with walking maintaining mechanisms respectively;

[0182] The walking maintaining mechanisms are arranged on the preset track.

[0183] In the scheme, the wheels are slot wheels, which are engaged with the preset track, so that the structure of the battery swapping device is more compact; or the wheels are limited on the track by connecting the walking maintaining mechanisms with the wheels; by using any of the above structural forms, it can be ensured that the wheels of the first walking wheel set, the second walking wheel set and the third walking wheel set will not slip off or be separated from the preset track when moving along the preset guide rail, thereby further ensuring the walking stability of the battery swapping device.

[0184] Preferably, the walking maintaining mechanism comprises a plurality of limiting parts arranged on both sides of the preset track and a mounting part for mounting the limiting parts, the mounting part is arranged on the preset track along the width direction of the preset track and connected with the plurality of limiting parts on both sides of the preset track, and the limiting parts are rotatably arranged so as to roll along the side wall of the preset track during the walking of the battery swapping device along the preset track.

[0185] The assembling method further comprises the following steps in the step of arranging the walking maintaining mechanism on the preset track:

[0186] The mounting part is arranged on the preset track along the width direction of the preset track and connected with the plurality of limiting parts on both sides of the preset track;

[0187] The limiting parts are rotatably mounted on the side wall of the preset track.

[0188] In the scheme, the mounting part of the walking maintaining mechanism is used to connect the first walking wheel set, the second walking wheel set and the third walking wheel set, so as to ensure the reliability of the connection; the limiting part of the walking maintaining mechanism can roll along the side wall of the preset track, so as to reduce the friction on the preset track and ensure the limiting of the walking of the wheels of the first walking wheel set, the second walking wheel set and the third walking wheel set.

[0189] Preferably, the mounting part comprises a mounting plate above the preset track and extension plates extending downward from both sides of the mounting plate to both sides of the preset track, the extension plates being used to connect the limiting part, and the mounting plate having a wheel accommodating area for accommodating the wheels of the battery replacing device, so that the wheels are in contact with the upper surface of the preset track and walk on the preset track.

[0190] The assembly method further comprises the following steps in the step of placing the walking maintaining mechanism on the preset track:

[0191] connecting the mounting plate with the first walking wheel set, the second walking wheel set or the third walking wheel set;

[0192] connecting the extension plate with the limiting part.

[0193] In this solution, the extension plate facilitates the installation of the limiting part, the wheel accommodating area of the mounting plate facilitates the wheels to be in contact with the surface of the preset track and walk on the preset track, and the whole structure is more compact.

[0194] Preferably, the battery replacing device further comprises electrical elements for controlling the movement of the first walking module, the second walking module and the battery replacing module; the electrical elements are at least partially arranged in the first walking frame; and / or, the battery replacing device further comprises an electrical frame connected to the first walking frame, and part of the electrical elements are arranged in the electrical frame.

[0195] The assembly method further comprises the following steps after the step of assembling the first walking wheel set to form the first walking module:

[0196] arranging at least part of the electrical elements in the first walking frame; and / or,

[0197] connecting the electrical frame to the first walking frame and arranging part of the electrical elements in the electrical frame.

[0198] In this solution, the electrical elements are arranged in the first walking frame and / or the electrical frame, which is compact, simple and convenient to install, and the first walking frame and / or the electrical frame have a certain protective effect on the electrical elements.

[0199] Preferably, the number of lifting mechanisms is two, and the two lifting mechanisms are symmetrically arranged on both sides of the battery replacing platform along the walking direction.

[0200] The assembly method further comprises the following steps in the step of installing the lifting mechanism and the battery replacing platform in the frame main body to form the battery replacing module:

[0201] The two lifting mechanisms are symmetrically arranged on two sides of the battery replacing platform along the walking direction.

[0202] In the present solution, two lifting mechanisms can be simultaneously arranged on two sides of the battery replacing platform, improving assembly efficiency. When driving the battery replacing platform, the two lifting mechanisms can disperse the support force supporting the battery replacing platform, increase the contact points with the battery replacing platform, and further enhance the stability and stability of the battery replacing platform in the height direction when moving the battery pack, avoiding damage to the battery pack due to uneven stress on the battery replacing platform.

[0203] Preferably, the lifting mechanism comprises:

[0204] The driving assembly is arranged on the side of the partition plate away from the battery replacing platform and located in the side area, and is used to provide power for the lifting mechanism to lift the battery replacing platform;

[0205] The lifting assembly is arranged on the side of the partition plate close to the battery replacing platform and located in the middle area, and is connected with the battery replacing platform to drive the battery replacing platform to lift along the height direction of the frame body;

[0206] The transmission assembly is arranged through the partition plate, and the transmission assembly is connected between the driving assembly and the lifting assembly so that the driving assembly can drive the lifting assembly to lift;

[0207] The assembly method further comprises the following steps in the step of installing the lifting mechanism and the battery replacing platform in the frame body to form the battery replacing module:

[0208] The driving assembly is arranged on the side of the partition plate away from the battery replacing platform and located in the side area;

[0209] The lifting assembly is arranged on the side of the partition plate close to the battery replacing platform and located in the middle area, and is connected with the battery replacing platform;

[0210] The transmission assembly is arranged through the partition plate, and the transmission assembly is connected between the driving assembly and the lifting assembly so that the driving assembly can drive the lifting assembly to lift;

[0211] In the present solution, the driving assembly provides power for the lifting mechanism to lift the battery replacing platform, the lifting assembly drives the battery replacing platform to lift along the height direction of the frame body, and the transmission assembly enables the driving assembly to drive the lifting assembly to lift. The above structure installation enables the battery replacing platform to move the battery pack smoothly.

[0212] Preferably, the transmission assembly comprises:

[0213] The connecting portion is sleeved on the power output shaft of the driving assembly at one end, and extends to the middle area through the partition plate at the other end.

[0214] a transmission part located in the middle area and arranged on the partition plate, connected with the other end of the connecting part so as to be driven by the driving assembly to move back and forth along the direction perpendicular to the walking direction;

[0215] the lifting assembly comprises:

[0216] a lifting member, one end of which is connected with the transmission part and the other end of which is connected with the battery replacement platform, the transmission part driving the lifting member during the movement back and forth along the direction perpendicular to the walking direction so that the battery replacement platform can be lifted along the height direction relative to the frame body;

[0217] the assembling method further comprises the following steps in the step of installing the lifting mechanism and the battery replacement platform in the frame body to form the battery replacement module:

[0218] one end of the connecting part is sleeved on the power output shaft of the driving assembly and the other end extends through the partition plate to the middle area;

[0219] the transmission part is installed in the middle area and arranged on the partition plate and connected with the other end of the connecting part;

[0220] one end of the lifting member is connected with the transmission part and the other end is connected with the battery replacement platform.

[0221] In the present scheme, by arranging the connecting part and the transmission part which are connected with each other and can move synchronously on the driving assembly and the partition plate, the power conversion of the driving assembly driving the lifting assembly is accurately and stably realized, and by arranging the lifting member, the stability and reliability of the lifting operation of the battery replacement platform are realized.

[0222] Preferably, the connecting part comprises:

[0223] a positioning structure sleeved on the power output shaft of the driving assembly and threadedly connected with the power output shaft so that the positioning structure moves along the extension direction of the power output shaft;

[0224] two recesses, symmetrically arranged on both sides of the positioning structure along the movement direction of the positioning structure and accommodating the protrusions on the corresponding sides of the positioning structure, and the protrusions extend away from the positioning structure and do not exceed the maximum thickness of the recesses;

[0225] a limiting plate located on the side of the connecting part close to the transmission part and slidably connected with the partition plate along the movement direction of the positioning structure, one end of the limiting plate being connected with the two recesses and the other end of the limiting plate extending through the partition plate and being connected with the transmission part;

[0226] The assembling method specifically comprises the following steps in the step of sleeving one end of the connecting part on the power output shaft of the driving assembly and extending the other end through the partition plate to the middle area:

[0227] Sleeving the positioning structure on the power output shaft of the driving assembly and threadedly connecting the positioning structure with the power output shaft;

[0228] Asymmetrically arranging the two recesses on the two sides of the positioning structure and assembling the recesses with the gaps between the protrusions on the corresponding two sides of the positioning structure;

[0229] Slidably mounting the limiting plate on the partition plate and positioning the limiting plate on the side of the connecting part close to the transmission part, and connecting one end of the limiting plate with the two recesses and extending the other end of the limiting plate through the partition plate to connect with the transmission part.

[0230] In the scheme, the transmission part moves with the positioning structure in the same direction through the cooperation between the positioning structure, the recesses and the limiting plate, and the reliability and stability of the transmission are ensured. The two protrusions of the positioning structure are limited and fixed by the recesses, and the concave-convex structure only limits in the movement direction, which ensures the freedom of the positioning structure in the non-movement direction while achieving the transmission effect of enhancing the linear movement of the connecting part along the extension direction of the power output shaft.

[0231] Preferably, the transmission part comprises a gear and a rack engaged with each other, the rack is movably arranged on the partition plate, and the rack is fixedly engaged with the tooth block arranged on the other end of the limiting plate, so that the rack can be driven by the driving assembly to move back and forth along the vertical direction of the walking direction; during the movement of the rack back and forth to drive the gear to rotate, the lifting member drives the battery replacement platform to lift along with the rotation of the gear;

[0232] The assembling method specifically comprises the following steps in the step of arranging the transmission part on the middle area and mounting the transmission part on the partition plate and connecting the other end of the connecting part:

[0233] Movable mounting the rack on the partition plate, mounting the tooth block on the other end of the limiting plate, and fixedly engaging the tooth block with the rack;

[0234] Mounting the gear on the lifting member and engaging the gear with the rack.

[0235] In the scheme, the rack is engaged with the tooth block, so that the rack can be driven by the driving assembly to move back and forth along the vertical direction of the walking direction, thereby driving the gear to rotate, and then driving the lifting member to move through the gear, thereby driving the battery replacement platform to lift, and ensuring the stability of the lifting of the battery replacement platform.

[0236] Preferably, the number of gears is two, and the two gears are arranged along the extension direction of the rack and located at the two ends of the rack and coaxially arranged with the lifting member;

[0237] The assembly method further comprises the following steps in the step of engaging the gears with the rack and connecting the gears with the lifting member:

[0238] The two gears are coaxially mounted with the lifting member respectively;

[0239] The two gears are arranged at the two ends along the extension direction of the rack and engaged with the rack.

[0240] In this scheme, two gears are arranged on one side of the battery replacement platform along the vertical walking direction. When the gears drive the battery replacement platform, the stress of the battery replacement platform can be balanced, the contact points with the battery replacement platform are increased, and the stability of the battery replacement platform moving in the height direction when carrying the battery pack is enhanced, and the damage of the battery pack caused by uneven stress of the battery replacement platform is avoided.

[0241] Preferably, the lifting mechanism further comprises:

[0242] The guide member is arranged on the periphery of the battery replacement platform along the length direction and / or the width direction of the frame body for guiding the lifting of the battery replacement platform;

[0243] The assembly method further comprises the following steps in the step of installing the lifting mechanism and the battery replacement platform in the frame body to form the battery replacement module:

[0244] The guide member is arranged on the periphery of the battery replacement platform along the length direction and / or the width direction of the frame body.

[0245] In this scheme, the guide members are arranged on the opposite sides or periphery of the battery replacement platform to achieve the stability and reliability of the lifting operation of the battery replacement platform, so that the battery replacement equipment can be lifted to a position suitable for disassembling and assembling batteries to disassemble and assemble the batteries on the battery replacement vehicle.

[0246] Preferably, the guide member comprises a first connecting rod and a second connecting rod which are hingedly connected to each other;

[0247] One end of the first connecting rod is rotatably connected to the frame body, and the other end is slidably connected to the battery replacement platform;

[0248] One end of the second connecting rod is slidably connected to the battery replacement platform, and the other end is rotatably connected to the frame body, so that the guide member can be unfolded or folded with the battery replacement platform during the lifting process to guide the lifting of the battery replacement platform in the height direction;

[0249] The assembling method further comprises the following steps in the step of arranging the guide along the length direction and / or width direction of the frame body on the periphery of the battery replacement platform:

[0250] articulating the first connecting rod with the second connecting rod;

[0251] rotatably connecting one end of the first connecting rod to the frame body and slidably connecting the other end of the first connecting rod to the battery replacement platform;

[0252] slidably connecting one end of the second connecting rod to the battery replacement platform and rotatably connecting the other end of the second connecting rod to the frame body.

[0253] In the present solution, the above structure enhances the flexibility of connecting the guide to the frame body and the battery replacement platform, so that the height of the battery replacement platform is adjustable, which meets the requirement of the battery replacement platform for replacing the battery of the electric vehicle with different chassis heights, thereby enhancing the universality of the battery replacement equipment.

[0254] Preferably, the battery replacement platform comprises:

[0255] a support frame located at the bottom of the battery replacement platform, wherein a matching part matched with the lifting mechanism is arranged on the side wall facing the partition plate, so that the support frame can be driven by the lifting mechanism to be lifted and lowered;

[0256] and a first layer plate and a second layer plate respectively located above the support frame and movably connected with the support frame, wherein the first layer plate is located above the second layer plate;

[0257] the first layer plate is provided with a battery positioning column for positioning the battery pack on the battery replacement vehicle and an unlocking mechanism for unlocking the battery pack;

[0258] the second layer plate is provided with a vehicle positioning column for positioning the battery replacement vehicle; the second layer plate has an extension part extending out of the frame body in the vertical direction of the walking direction, and the vehicle positioning column is arranged on the extension part of the second layer plate;

[0259] The assembling method further comprises the following steps in the step of installing the lifting mechanism and the battery replacement platform in the frame body to form the battery replacement module:

[0260] connecting the second layer plate to the support frame;

[0261] connecting the first layer plate to the support frame and locating the first layer plate above the second layer plate.

[0262] In the scheme, by arranging the upper layer plate and the lower layer plate to be staggered in the horizontal direction, the height difference between the upper layer plate and the lower layer plate can be further reduced, the compressibility and adjustability of the distance between the upper layer plate and the lower layer plate are realized, and the purpose of reducing the height of the entire battery replacement module is achieved, so that the height of the battery replacement equipment is further compressed to meet the height requirements of heavy truck battery replacement for different vehicle chassis and the lowest height requirements on the vehicle chassis.

[0263] Preferably, a guide mechanism and a moving mechanism are arranged on the support frame, the guide mechanism comprises guide rails perpendicular to the walking direction and two third sliding blocks and two fourth sliding blocks arranged on the guide rails, the third sliding blocks are connected to the first layer plate, the fourth sliding blocks are connected to the second layer plate, and along the locking and unlocking direction, the two third sliding blocks are arranged on the front side and the rear side of the two fourth sliding blocks respectively.

[0264] The length of the second layer plate in the extension direction of the guide rails is shorter than that of the first layer plate, or at least one end of the second layer plate in the extension direction of the guide rails is provided with a avoiding area to facilitate the connection of the first layer plate and the two third sliding blocks.

[0265] The moving mechanism comprises:

[0266] A first moving unit is arranged on the support frame and connected and drives the first layer plate to reciprocate in the extension direction of the guide rails.

[0267] A second moving unit is arranged on the support frame and connected and drives the second layer plate to reciprocate in the extension direction of the guide rails.

[0268] The second layer plate is provided with an avoiding groove for the connecting piece of the first layer plate to pass through and be connected with the first moving unit.

[0269] The assembly method further comprises the following steps in the step of installing the lifting mechanism and the battery replacement platform in the frame body to form the battery replacement module:

[0270] Two third sliding blocks and two fourth sliding blocks are installed on the guide rails, and the fourth sliding blocks are connected to the second layer plate.

[0271] Along the locking and unlocking direction, the two third sliding blocks are respectively arranged on the front side and the rear side of the two fourth sliding blocks and located in the avoiding area of the second layer plate or on the front side and the rear side of the second layer plate, and the third sliding blocks are connected with the first layer plate.

[0272] The second moving unit is arranged on the support frame and connected with the second layer plate.

[0273] The first moving unit is arranged on the support frame, and the connecting piece of the first layer plate is connected with the first moving unit through the avoiding groove of the second layer plate.

[0274] In the scheme, the first layer plate and the second layer plate are simultaneously supported by the support frame, the second layer plate is different in size from the first layer plate, or the second layer plate is provided with an avoiding area, so that the first layer plate and the second layer plate are connected with the guide rails respectively and do not interfere with each other, and the assembly efficiency is improved. Meanwhile, the avoiding groove is arranged on the second layer plate, so that the first layer plate and the second layer plate are connected with the corresponding moving units respectively and do not interfere with each other, and the assembly efficiency and the compactness of the structure after assembly are improved.

[0275] The positive progress effect of the application is that:

[0276] In the application, the battery replacement equipment is modularized, so that the required components can be installed on each module of the battery replacement equipment, the installation efficiency is improved, the production cycle of each module is shortened, and the staff can disassemble and repair conveniently, so that the flexibility and universality of the battery replacement equipment are improved, and the applicability of the battery replacement equipment is stronger. The first walking module and the second walking module are arranged on the two sides of the battery replacement module respectively, the lifting mechanism is used to drive the battery replacement platform, the independent operation of each mechanism is facilitated, and the safety of the battery replacement equipment entering the bottom of the battery replacement vehicle for battery replacement is ensured. Meanwhile, the battery replacement module can rotate around the first walking wheel set in the horizontal plane, so that in the case that the parking position of the battery replacement vehicle is deviated, the battery replacement equipment can be precisely positioned with the battery replacement vehicle through rotation, and the accuracy of battery replacement is ensured, and the battery replacement efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0277] Figure 1 It is a three-dimensional structure schematic diagram of the battery replacement equipment of the embodiment 1 of the application and a preset track.

[0278] Figure 2 It is a three-dimensional structure schematic diagram of the battery replacement equipment of the embodiment 1 of the application (the first layer plate and the second layer plate are hidden in the figure).

[0279] Figure 3 It is a three-dimensional structure schematic diagram of the first walking module of the battery replacement equipment of the embodiment 1 of the application.

[0280] Figure 4 It is a three-dimensional structure schematic diagram of the first walking wheel set of the battery replacement equipment of the embodiment 1 of the application.

[0281] Figure 5 It is a three-dimensional structure schematic diagram of the third walking wheel set of the battery replacement equipment of the embodiment 1 of the application.

[0282] Figure 6A perspective view of a second walking module of the battery replacement device of embodiment 1 of the present application. Figure 7 A cross-sectional view of a second sliding assembly and a second rotating assembly of the second walking module of the battery replacement device of an embodiment of the present application.

[0283] Figure 8 A perspective view of a wheel and a walking retaining mechanism of the battery replacement device of embodiment 1 of the present application.

[0284] Figure 9 A perspective view of a walking retaining mechanism and a preset track of the battery replacement device of embodiment 1 of the present application.

[0285] Figure 10 A perspective view of a frame body of the battery replacement device of embodiment 1 of the present application.

[0286] Figure 11 A perspective view of a lifting mechanism of the battery replacement device of embodiment 1 of the present application.

[0287] Figure 12 A perspective view of a transmission assembly of the lifting mechanism of the battery replacement device of embodiment 1 of the present application.

[0288] Figure 13 A top view of a connecting portion of the battery replacement device of embodiment 1 of the present application.

[0289] Figure 14 A perspective view of a guide of the battery replacement device of embodiment 1 of the present application.

[0290] Figure 15 A perspective view of a guide mechanism and a moving mechanism of the battery replacement platform of the battery replacement device of embodiment 1 of the present application.

[0291] Figure 16 A perspective view of a first layer plate of the battery replacement platform of the battery replacement device of embodiment 1 of the present application.

[0292] Figure 17 A perspective view of a second layer plate of the battery replacement platform of the battery replacement device of embodiment 1 of the present application.

[0293] Figure 18 A flowchart of an assembly method of the battery replacement device of embodiment 2 of the present application.

[0294] Figure 19 A perspective view of the battery replacement device of embodiment 3 of the present application.

[0295] Figure 20 A perspective view of a grooved wheel of embodiment 3 of the present application.

[0296] Figure 21Fig. 3 is a perspective view of a second walking module of the embodiment 3 of the present application.

[0297] Figure 22 Fig. 4 is a perspective view of a stop assembly of the embodiment 3 of the present application.

[0298] Figure 23 Fig. 5 is a perspective view of a first connecting seat connecting the first walking wheel set of the embodiment 3 of the present application. DETAILED DESCRIPTION

[0299] The present application will be more clearly understood and more fully appreciated by the following detailed description, taken in conjunction with the accompanying drawings, in which:

[0300] Embodiment 1

[0301] As Figures 1 to 17As shown, this embodiment provides a battery exchange device 100, which can move along a preset track 101 to perform chassis-type battery exchange for a battery exchange vehicle. The battery exchange device 100 includes a battery exchange module 1, a first walking module 2 and a second walking module 3. The battery exchange module 1 includes a frame body 11, a lifting mechanism 12 and a battery exchange platform 13. The frame body 11 includes two opposite cross beams 111 and two opposite longitudinal beams 112, as well as two partition plates 113 parallel to the longitudinal beams 112 and connected to the cross beams 111. The partition plates 113 divide the frame body 11 into a middle area 114 and side areas 115 symmetrically arranged on both sides of the middle area 114. The lifting mechanism 12 is connected to the partition plates 113, and the lifting mechanism 12 is partially located on the side. Area 115 and partly located in the middle area 114, the battery exchange platform 13 is arranged in the middle area 114 and is connected to the lifting mechanism 12, so that it can be lifted by the lifting mechanism 12 and raised and lowered relative to the frame body 11 to replace the battery of the battery exchange vehicle; the first walking module 2 is connected to the battery exchange module 1 on one side along the walking direction of the battery exchange equipment 100, and the first walking module 2 includes a rotating first walking wheel group 21; the second walking module 3 is connected to the other side of the battery exchange module 1 along the walking direction and is opposite to the first walking module 2, and the second walking module 3 includes two slidingly connected second walking wheel groups 31; wherein, when the second walking wheel group 31 is driven, the battery exchange module 1 can rotate in the horizontal plane with the first walking wheel group 21 as the fulcrum to align with the battery of the battery exchange vehicle. Specifically, in this embodiment, the crossbeam 111 and the partition plate 113 are both provided with double-layer plates, and a space is formed between the double-layer plates. The space between the double-layer plates of the partition plate 113 can facilitate the connection of components such as the lifting mechanism 12 with the partition plate 113, and the space between the double-layer plates of the crossbeam 111 can reserve space for wiring inside the battery swap device 100, making it convenient for the various electrical components inside the battery swap device 100 to connect high-voltage or low-voltage cables, thereby increasing the structural compactness of the battery swap device 100 and ensuring the neatness and reliability of the cables. In other optional embodiments, the crossbeam 111 and the partition plate 113 can also be set as a single-layer plate or a plate structure with two or more layers.

[0302] With the above structure, the battery replacing device 100 is modularized, which facilitates the installation of required components on each module of the battery replacing device 100, improves the installation efficiency, shortens the production cycle of each module, and facilitates the disassembly and repair by the staff, thereby enhancing the flexibility and universality of the battery replacing device 100 and making the battery replacing device 100 more applicable. The first walking module 2 and the second walking module 3 are respectively arranged on the two sides of the battery replacing module 1, and the lifting mechanism 12 is used to drive the battery replacing platform 13, which facilitates the independent operation of each mechanism and ensures the safety of the battery replacing device 100 entering from the bottom of the battery replacing vehicle to replace the battery of the battery replacing vehicle. Meanwhile, the battery replacing module 1 can rotate around the first walking wheel set 21 as a fulcrum in the horizontal plane, so that in the case of deviation of the parking position of the battery replacing vehicle, the battery replacing device 100 can adjust the posture by rotating to realize accurate positioning with the battery replacing vehicle, thereby ensuring the accuracy of battery replacement and improving the battery replacement efficiency. The walking direction of the battery replacing device 100 is the length extension direction of the preset track 101. Figure 1

[0303] In some embodiments, the first walking module 2 only includes one first walking wheel set 21, which can be arranged on the central axis of the battery replacing device 100 in the walking direction. The two second walking wheel sets 31 of the second walking module 3 are arranged on the two sides of the battery replacing device 100 in the walking direction, so that the three walking wheel sets stably support the battery replacing device 100 in a triangular form, and can realize the functions of walking, rotating, etc.

[0304] In this embodiment, the first walking module 2 further includes a third walking wheel set 22, and the first walking wheel set 21 and the third walking wheel set 22 are oppositely arranged on the two sides of the battery replacing device 100 parallel to the walking direction. The two second walking wheel sets 31 are oppositely arranged on the two sides of the battery replacing device 100 parallel to the walking direction, that is, the four walking wheel sets are respectively located at the four corner angles of the battery replacing device 100, so that the battery replacing device 100 is stably supported, which is conducive to ensuring the stability of the walking of the battery replacing device 100 and improving the carrying capacity of the battery replacing device 100.

[0305] ​In the embodiment, the two second walking wheel sets 31 are each independently provided with a driving mechanism 311, which can increase the driving force of the battery replacing device 100, especially during the walking process of the battery replacing device 100, the two driving mechanisms 311 synchronously drive the two second walking wheel sets 31 to make the walking of the battery replacing device 100 fast and stable. Meanwhile, when the battery replacing device 100 needs to adjust the posture to align with the battery pack of the battery replacing vehicle, one of the second walking wheel sets 31 can be driven to move along the preset track 101 at a small amplitude. Since the battery replacing device 100 always walks along the preset track 101, the second walking wheel set 31 will continue to keep the walking direction when moving at a small amplitude, which will cause the battery replacing device 100 to slide relative to the battery replacing device 100, and then the battery replacing device 100 rotates in the horizontal plane around the first walking wheel set 21 as the fulcrum to adjust the posture to adapt to the angle deflection of the battery replacing vehicle when parking. Alternatively, the two driving mechanisms 311 can simultaneously drive the two second walking wheel sets 31 in opposite directions, so as to exert a rotating torque on the battery replacing module 1 through the two second walking wheel sets 31, and then the battery replacing module 1 can rotate in the horizontal plane around the first walking wheel set 21 as the fulcrum. The arrangement of the two driving mechanisms 311 can increase the rotating power of the battery replacing device 100 and increase the application range of the battery replacing device 100. In other alternative embodiments, the driving mechanism 311 can be arranged in only one of the second walking wheel sets 31, and preferably, the driving mechanism 311 is arranged in the second walking wheel set 31 located at the diagonal position of the first walking wheel set 21.

[0306] In the embodiment, the first walking module 2 further comprises a first walking frame 23, and the second walking module 3 further comprises a second walking frame 32. The first walking frame 23 and the second walking frame 32 are oppositely arranged on the two sides of the battery replacing module 1 in the vertical walking direction. The first walking wheel set 21 and the third walking wheel set 22 are respectively arranged on the two sides of the first walking frame 23 in the walking direction. The two second walking wheel sets 31 are respectively arranged on the two sides of the second walking frame 32 in the walking direction. The arrangement of the first walking frame 23 and the second walking frame 32 facilitates the installation of the first walking wheel set 21, the second walking wheel set 31 and the third walking wheel set 22. The first walking wheel set 21 and the third walking wheel set 22 do not need to be provided with power components, and are arranged in the same walking frame, which is beneficial to save the installation space of the walking frame for the installation of other elements. The two second walking wheel sets 31 are arranged in the same walking frame, which facilitates the centralized installation of the driving mechanisms 311.

[0307] In the embodiment, the upper portion and the lower portion of the first walking wheel set 21 are respectively connected with the first walking frame 23 through the first rotating assembly 24, the first rotating assembly 24 comprises a fixed portion 241 and a rotating portion 242 which are connected with each other in a rotating manner and can bear radial force and axial force, the fixed portion 241 is connected with the first walking frame 23, and the rotating portion 242 is connected with the upper portion or the lower portion of the first walking wheel set 21. The rotating connection between the first walking frame 23 and the first walking wheel set 21 is realized through the fixed portion 241 and the rotating portion 242 which are connected with each other in a rotating manner, and the fixed portion 241 and the rotating portion 242 can bear radial force and axial force, so that the stability of the rotating connection is better, and the stability of the first walking frame 23 during walking and the stability of the rotating process of the battery replacing device 100 are improved. In other optional embodiments, the rotating portion 242 can be connected with the first walking frame 23, and the fixed portion 241 can be connected with the upper portion or the lower portion of the first walking wheel set 21. Specifically, in the embodiment, the first rotating assembly 24 adopts a tapered roller bearing, and in other optional embodiments, the first rotating assembly 24 can also adopt other components which can realize relative rotation function.

[0308] In the embodiment, the third walking wheel set 22 is connected to the first walking frame 23 through the first sliding assembly 25 on the front side and the rear side of the walking direction, the first sliding assembly 25 comprises a first sliding rail 251 and a first sliding block 252 matched with each other, the first sliding rail 251 is connected to the first walking frame 23 and extends in a direction perpendicular to the walking direction of the battery replacing device 100, and the first sliding block 252 is connected to the third walking wheel set 22, so that the sliding direction of the third walking wheel set 22 is perpendicular to the walking direction of the battery replacing device 100; the second walking wheel set 31 is connected to the second walking frame 32 through the second sliding assembly 33 on the front side and the rear side of the walking direction, the second sliding assembly 33 comprises a second sliding rail 331 and a second sliding block 332 matched with each other, the second sliding rail 331 is connected to the second walking frame 32 and extends in a direction perpendicular to the walking direction of the battery replacing device 100, and the second sliding block 332 is connected to the second walking wheel set 31, so that the sliding direction of the second walking wheel set 31 is perpendicular to the walking direction of the battery replacing device 100. The third walking wheel set 22 is connected to the first walking frame 23 through the first sliding assembly 25, and the second walking wheel set 31 is connected to the second walking frame 32 through the second sliding assembly 33, which provides an implementation manner for the displacement of the battery replacing module 1 in the horizontal plane during rotation; and the cooperation of the first sliding rail 251 and the first sliding block 252 and the cooperation of the second sliding rail 331 and the second sliding block 332 make the sliding more stable. In other optional embodiments, the first sliding block 252 can be connected to the first walking frame 23, the first sliding rail 251 can be connected to the third walking wheel set 22, the second sliding block 332 can be connected to the second walking frame 32, and the second sliding rail 331 can be connected to the second walking wheel set 31. Specifically, in the embodiment, the heights of the two first sliding rails 251 and the first sliding block 252 on the front and rear sides of the third walking wheel set 22 are the same, and the heights of the two second sliding rails 331 and the second sliding block 332 on the front and rear sides of the second walking wheel set 31 are the same, so that the third walking wheel set 22 and the second walking wheel set 31 are more balanced in force and run more stably, and the generation of eccentric force due to different height settings is avoided, which affects the stability of the movement of the battery replacing device 100.

[0309] In the embodiment, the first walking frame 23 is further provided with a first connecting seat 26, the front side and the rear side of the third walking wheel set 22 are respectively connected with the first connecting seat 26 through a first sliding assembly 25, and the upper side and the lower side of the first connecting seat 26 are respectively connected with the first walking frame 23 through a second rotating assembly 27; the second walking frame 32 is further provided with a second connecting seat 34, the front side and the rear side of the second walking wheel set 31 are respectively connected with the second connecting seat 34 through a second sliding assembly 33, and the upper side and the lower side of the second connecting seat 34 are respectively connected with the second walking frame 32 through the second rotating assembly 27. The above structure makes the third walking wheel set 22 slide relative to the first connecting seat 26, the second walking wheel set 31 slide relative to the second connecting seat 34, the first connecting seat 26 and the second connecting seat 34 rotate relative to the first walking frame 23 and the second walking frame 32 respectively; in addition, the front side and the rear side of the third walking wheel set 22 are respectively provided with the first sliding assembly 25, and the front side and the rear side of the second walking wheel set 31 are respectively provided with the second sliding assembly 33, so that the sliding of the third walking wheel set 22 and the second walking wheel set 31 is more stable, and the sliding deviating from the preset sliding track is avoided; and through the cooperation of sliding and rotating, the stability and fluency of the battery replacement equipment 100 rotating in the horizontal plane are improved. Specifically, in the embodiment, the first connecting seat 26 and the first walking frame 23, and the second connecting seat 34 and the second walking frame 32 have a preset gap in the walking direction, so as to facilitate the barrier-free rotation of each walking wheel set. Specifically, the preset gap is set when the battery replacement equipment is designed, based on the rotating range of the battery replacement equipment relative to the first and second walking wheel sets, so as to ensure that the first connecting seat 26 and the first walking frame 23 do not interfere with each other, and the second connecting seat 34 and the second walking frame 32 do not interfere with each other during the rotating process of the battery replacement equipment. The second rotating assembly 27 adopts a tapered roller bearing, and in other optional embodiments, the second rotating assembly 27 can also adopt other components that can realize the relative rotating function. In addition, in the embodiment, the third walking wheel set 22 does not have a power component, and other structures are the same as those of the second walking wheel set 31.

[0310] In the embodiment, the second sliding assembly 33 is provided with a locking mechanism having a locked state and an unlocked state. When the locking mechanism is in the locked state, the relative sliding of the second sliding assembly 33 is limited, so that when the second walking wheel set 31 is driven, the battery swapping device 100 can be driven to walk along the preset track 101. When the locking mechanism is in the unlocked state, the second sliding assembly 33 can slide relatively, so that when the second walking wheel set 31 is driven, the second walking wheel set 31 moves a preset distance along the preset track 101, and the battery swapping device 100 can be driven to rotate around the first walking wheel set 21 as a fulcrum in the horizontal plane, so as to realize the battery alignment between the battery swapping module 1 and the battery swapping vehicle. During the process that the battery swapping device 100 walks along the walking direction defined by the preset track 101 to the battery alignment with the battery swapping vehicle, the locking mechanism is in the locked state, that is, the second sliding rail 331 and the second sliding block 332 of the second sliding assembly 33 cannot slide relatively, so that the battery swapping device 100 will not shake due to the sliding of the second sliding assembly 33 in the early walking process, thereby improving the stability of the battery swapping device 100 when walking. After the battery swapping device 100 walks to the position below the battery swapping vehicle, the locking mechanism is changed to the unlocked state, so that the second sliding rail 331 and the second sliding block 332 can slide relatively, and then the relative angle between the battery swapping device 100 and the battery swapping vehicle is adjusted.

[0311] In the embodiment, the locking mechanism includes a retractable locking rod. When the locking mechanism is in the locked state, the locking rod extends from the original position and abuts against the second sliding rail 331 at a preset position to limit the relative movement of the second sliding rail 331 and the second sliding block 332. When the locking mechanism is in the unlocked state, the locking rod is retracted to the original position. By setting the locking rod to be retractable, the switching between the locked state and the unlocked state of the locking mechanism is realized, and the control of whether the second sliding assembly 33 can slide is realized. When the locking rod extends and presses the second sliding rail 331, the friction force prevents the second sliding block 332 from sliding relative to the second sliding rail 331.

[0312] In the embodiment, the locking rods are two, and the two locking rods are arranged on the upper and lower sides of the second sliding rail 331 respectively. Therefore, the extension direction of the locking rods is directed to the side surface of the second sliding rail 331, and the end shape of the locking rod is matched with the shape of the side surface of the second sliding rail 331. The two locking rods act on the second sliding rail 331 from the upper and lower sides of the second sliding rail 331 respectively, so that the two locking rods can clamp the second sliding rail 331 in the locking process, so that the friction is larger, and the locking effect is better. The shape of the end of the locking rod is matched with the shape of the side surface of the second sliding rail 331, so that the locking of the locking rod and the second sliding rail 331 is more firm, which is beneficial to further improve the locking effect of the locking rod and avoid the locking rod from being separated from the second sliding rail 331. In other optional embodiments, a locking hole for inserting the locking rod can be arranged in the second sliding rail 331 to lock, and this structure can further improve the reliability of limiting the sliding of the second sliding assembly 33.

[0313] In the embodiment, the first walking wheel set 21, the second walking wheel set 31 and the third walking wheel set 22 all have wheels 4 that can walk along the preset track 101, and the wheels 4 are groove wheels with lower edges on both sides that can cooperate with the preset track 101. The first walking wheel set 21, the second walking wheel set 31 and the third walking wheel set 22 are all connected with a walking retaining mechanism 5, which is arranged on the preset track 101, so that the wheels 4 of the first walking wheel set 21, the second walking wheel set 31 and the third walking wheel set 22 are limited to walk on the preset track 101. The wheels 4 are groove wheels, which are engaged with the preset track 101, so that the structure of the battery replacement equipment 100 is more compact. The above structure can ensure that the wheels 4 of the first walking wheel set 21, the second walking wheel set 31 and the third walking wheel set 22 will not slip off or be separated from the preset track 101 when moving along the preset track 101, thereby further ensuring the walking stability of the battery replacement equipment 100, and ensuring the travel route of the battery replacement equipment 100 to avoid deviation. In other embodiments, the wheels 4 are groove wheels with lower edges on both sides that can cooperate with the preset track 101. The lower edges of the groove wheels are engaged with the preset track 101, so that the wheels are limited to walk on the guide rail of the preset track 101. At the same time, the wheels using groove wheels can make the structure of the battery replacement equipment 100 more simple and compact.

[0314] In the embodiment, the walking maintaining mechanism 5 comprises a plurality of limiting parts 51 arranged on both sides of the preset track 101 and a mounting part 52 for mounting the limiting parts 51, the mounting part 52 is arranged on the preset track 101 along the width direction of the preset track 101 and connected with the plurality of limiting parts 51 on both sides of the preset track 101, and the limiting parts 51 are rotatably arranged so as to roll along the side wall of the preset track 101 during the walking of the battery swap device 100 along the preset track 101. The walking maintaining mechanism 5 further comprises a connecting part 53 connected with the mounting part 52 and the first walking wheel set 21, the second walking wheel set 31 and the third walking wheel set 22 respectively, the connecting part 53 further comprises a baffle 531 extending along the walking direction of the battery swap device 100 and having a certain height, the baffle 531 is located between the wheel 4 and the first walking frame 23 or between the wheel 4 and the second walking frame 32 to protect the wheel 4, especially when the locking mechanism is in the unlocked state, the battery swap device 100 can slide relative to the second walking wheel set 31, avoiding the collision between the wheel of the second walking wheel set 31 and the second walking frame 32 during the sliding process, so as to avoid the damage of the wheel 4 and affect the function of the battery swap device. In other embodiments, the mounting part 52 can be directly connected with the first walking wheel set 21, the second walking wheel set 31 and the third walking wheel set 22, so as to ensure the reliability of the connection. The limiting parts 51 of the walking maintaining mechanism 5 can roll along the side wall of the preset track 101, reducing the friction with the preset track 101, and ensuring the limiting of the walking of the wheels 4 of the first walking wheel set 21, the second walking wheel set 31 and the third walking wheel set 22.

[0315] In the embodiment, the mounting part 52 comprises a mounting plate 521 located above the preset track 101 and an extension plate 522 extending downward from both sides of the mounting plate 521 to both sides of the preset track 101, the extension plate 522 is used for connecting the limiting parts 51, and the mounting plate 521 has a wheel accommodating area 523 for accommodating the wheel 4 of the battery swap device 100, so that the wheel 4 is fitted with the upper surface of the preset track 101 and walks on the preset track 101. The extension plate 522 is arranged to facilitate the mounting of the limiting parts 51, and the wheel accommodating area 523 of the mounting plate 521 facilitates the fitting of the wheel 4 with the surface of the preset track 101 and the walking of the wheel 4 on the preset track 101, and the whole structure is more compact.

[0316] In the embodiment, the battery replacing device 100 further comprises electrical elements 6 for controlling the movement of the first walking module 2, the second walking module 3 and the battery replacing module 1; the electrical elements 6 are partially arranged in the first walking frame 23; the battery replacing device 100 further comprises an electrical frame 7 connected to the first walking frame 23, and the electrical elements 6 are partially arranged in the electrical frame 7. The movement of the first walking module 2, the second walking module 3 and the battery replacing module 1 is controlled by the electrical elements 6, so as to realize the automatic movement of the battery replacing device 100; since the first walking wheel set 21 does not need to be provided with a driving component, the walking frame where the first walking wheel set 21 is located can leave a mounting area to mount part of the electrical elements 6, so that the space of the first walking frame 23 can be fully utilized, and the component arrangement is more compact; the electrical frame 7 is arranged to facilitate the mounting of the electrical elements 6 and has a certain protective effect on the electrical elements 6. In other optional embodiments, the electrical elements 6 can be arranged only in the electrical frame 7 or only in the first walking frame 23.

[0317] In the embodiment, the number of the lifting mechanisms 12 is two, and the two lifting mechanisms 12 are symmetrically arranged on the two sides of the battery replacing platform 13 along the walking direction. When driving the battery replacing platform 13, the two lifting mechanisms 12 can disperse the support force of supporting the battery replacing platform 13, increase the contact points with the battery replacing platform 13, and then can enhance the stability and stability of the battery replacing platform 13 moving in the height direction when carrying the battery pack, and avoid the damage of the battery pack caused by uneven stress of the battery replacing platform 13.

[0318] In the embodiment, the lifting mechanism 12 comprises a driving assembly 121, a lifting assembly 122 and a transmission assembly 123; the driving assembly 121 is arranged on the side of the partition plate 113 away from the battery replacing platform 13 and located in the side area 115, and is used for providing power for the lifting mechanism 12 to lift the battery replacing platform 13; the lifting assembly 122 is arranged on the side of the partition plate 113 close to the battery replacing platform 13 and located in the middle area 114, and is connected with the battery replacing platform 13 to drive the battery replacing platform 13 to lift along the height direction of the frame main body 11; the transmission assembly 123 is arranged through the partition plate 113, and the transmission assembly 123 is connected between the driving assembly 121 and the lifting assembly 122 to enable the driving assembly 121 to drive the lifting assembly 122 to lift. By arranging the driving assembly 121 and the transmission assembly 123, the stability of the lifting assembly 122 driving the battery replacing platform 13 to move is ensured. At the same time, the transmission assembly 123 is arranged between the driving assembly 121 and the lifting assembly 122, which ensures the synchronization of the driving assembly 121 and the lifting assembly 122 and the stability of the operation of the two, and the running speed of the lifting assembly 122 can be changed by adjusting the operation of the driving assembly 121, which ensures the consistency of the lifting of the battery replacing platform 13 by the lifting assemblies 122 on the two sides.

[0319] In the embodiment, the transmission assembly 123 comprises a connecting portion 1231 and a transmission portion 1232. The connecting portion 1231 is sleeved on the power output shaft of the driving assembly 121 at one end and extends to the middle area 114 through the partition plate 113 at the other end. The transmission portion 1232 is located in the middle area 114 and is arranged on the partition plate 113. The transmission portion 1232 is connected to the other end of the connecting portion 1231 and can be driven by the driving assembly 121 to move back and forth along the vertical walking direction. The lifting assembly 122 comprises a lifting member 1221. One end of the lifting member 1221 is connected to the transmission portion 1232, and the other end is connected to the battery replacement platform 13. During the movement of the transmission portion 1232 in the vertical walking direction, the lifting member 1221 is driven to make the battery replacement platform 13 ascend and descend relative to the frame body 11 along the height direction. By arranging the connecting portion 1231 and the transmission portion 1232 on the driving assembly 121 and the partition plate 113 respectively, the connecting portion 1231 and the transmission portion 1232 are connected to each other and can move synchronously in a straight line. The power conversion of the driving assembly 121 driving the lifting assembly 122 is accurately and stably realized, and the implementation is more convenient and simple. At the same time, by arranging the lifting member 1221, the stability and reliability of the lifting operation of the battery replacement platform 13 are realized, so that the battery replacement equipment 100 can be lifted to a position suitable for disassembling and assembling batteries to disassemble and assemble the batteries on the battery replacement vehicle. Further, the battery replacement platform 13 can also be lifted to different heights to meet different heights of automobile chassis and enhance the applicability.

[0320] In the embodiment, the connecting part 1231 comprises a positioning structure 12311, two recesses 12312 and a limiting plate 12313. The positioning structure 12311 is sleeved on the power output shaft of the driving assembly 121 and is threadedly connected with the power output shaft, so that the positioning structure 12311 moves along the extension direction of the power output shaft. Along the moving direction of the positioning structure 12311, the two recesses 12312 are symmetrically arranged on the two sides of the positioning structure 12311 and accommodate the protrusions 12314 on the two sides of the positioning structure 12311, and the protrusions 12314 extend away from the positioning structure 12311 and do not exceed the maximum thickness of the recesses 12312. The partition plate 113 is provided with an opening through which the limiting plate 12313 passes, the limiting plate 12313 passes through the opening and is slidably connected with the partition plate 113 along the moving direction of the positioning structure 12311, one end of the limiting plate 12313 is connected with the two recesses 12312, and the other end of the limiting plate 12313 passes through the partition plate 113 and is connected with the transmission part 1232. Through the cooperation between the positioning structure 12311, the recesses 12312 and the limiting plate 12313, the transmission part 1232 moves in the same direction with the positioning structure 12311, and the reliability and stability of the transmission are ensured. At the same time, the two protrusions 12314 of the positioning structure 12311 are limited and fixed by the recesses 12312. The concave-convex structure only limits in the moving direction, which not only enhances the transmission effect of the linear motion of the connecting part 1231 along the extension direction of the power output shaft, but also ensures the freedom of the positioning structure 12311 in the non-moving direction. At the same time, the protrusions 12314 extend away from the positioning structure 12311 and do not exceed the maximum thickness of the recesses 12312, so that the structure also avoids the interference of the protrusions 12314 on the linear motion of the connecting part 1231 caused by the contact between the positioning structure 12311 and the recesses 12312. Specifically, in the embodiment, one side of the recess 12312 is open, and the other three sides are matched with the protrusions 12314. One side or two sides of the recess 12312 in the moving direction of the positioning structure 12311 can be provided as a gap matching surface with the protrusions 12314. In another embodiment, in the moving direction of the positioning structure 12311, the side wall of the protrusion 12314 in contact with the recess 12312 is provided as a circular arc surface, and the circular arc surface is in the axial direction of the extension direction of the protrusion.The structure makes the convex 12314 not completely fixed in the recess 12312, and can be conveniently installed and removed without affecting the transmission performance, and can be conveniently rotated in the recess 12312 and other irrelevant linear motion directions, facilitating adjustment; and the side wall of the convex 12314 in contact with the recess 12312 adopts a circular arc surface structure, so that even if there is a certain deviation in the rotation direction of the convex 12314 and the recess 12312 around the axis of the convex 12314 due to assembly error, the gap between the convex 12314 and the recess 12312 in the linear motion direction can always be kept equal, reducing the assembly requirement and ensuring the consistency of the transmission between the positioning structure 12311 and the transmission part 1232.

[0321] Specifically, in the present embodiment, the extension direction of the power output shaft of the driving assembly 121 is perpendicular to the walking direction of the battery replacement device 100, that is, parallel to the extension direction of the partition plate 113. The power output shaft is sleeved with a positioning structure 12311, the positioning structure 12311 is connected with the recess 12312 to drive the recess 12312 to move, the recess 12312 is connected with one end of a limiting plate 12313, the limiting plate 12313 is arranged on the partition plate 113, and the other end of the limiting plate 12313 is connected with a tooth block 12323, the tooth block 12323 is connected with the transmission part 1232 in a matched mode. The partition plate 113 is provided with a fourth sliding rail 12316, the recess 12312 is connected with a fifth sliding block 12317 through a connecting plate 12315, the positioning structure 12311 is connected with the fourth sliding rail 12316 through the fifth sliding block 12317 to realize more stable movement along the extension direction of the partition plate 113, and simultaneously drives the limiting plate 12313 to move, and then drives the transmission part 1232 to move, and drives the lifting mechanism 12 to lift.

[0322] In the embodiment, the transmission part 1232 comprises a gear 12321 and a rack 12322 engaged with each other, the rack 12322 is movably arranged on the partition plate 113, and the rack 12322 is clamped and fixed with a tooth block 12323 arranged at the other end of the limiting plate 12313, so that the rack 12322 can be driven by the driving assembly 121 to move back and forth along the vertical walking direction; during the movement of the rack 12322 to drive the gear 12321 to rotate, the lifting piece 1221 drives the battery replacement platform 13 to lift and lower along with the rotation of the gear 12321. The precision of the transmission is enhanced by the engagement of the gear 12321 and the rack 12322, which ensures the synchronization of the operation of the gear 12321 and the driving mechanism 311, and the speed of the rotation of the gear 12321 can be changed by adjusting the operation of the power output shaft of the driving mechanism 311. Further, the engagement of the gear 12321 and the rack 12322 also ensures the stability of the operation of the gear 12321, thereby ensuring the stability of the lifting and lowering of the battery replacement platform 13. At the same time, the clamping and fixing of the tooth block 12323 and the rack 12322 improves the reliability and synchronization between the connecting part 1231 and the transmission part 1232. In another embodiment, in order to make the connection of the tooth block 12323 and the rack 12322 more reliable, a through hole can be pre-set on the tooth block 12323 and the rack 12322 and connected by a fastener.

[0323] In the embodiment, the number of gears 12321 is two, the two gears 12321 are arranged along the extension direction of the rack 12322 and located at the two ends of the rack 12322 and coaxially arranged with the lifting piece 1221. Two gears 12321 are arranged on one side of the battery replacement platform 13 along the vertical walking direction, and a plurality of gears 12321 can balance the stress of the battery replacement platform 13 when driving the battery replacement platform 13, increase the contact points with the battery replacement platform 13, and further enhance the stability and stability of the battery replacement platform 13 in the height direction when carrying the battery pack, and avoid uneven stress of the battery replacement platform 13 to cause damage to the battery pack.

[0324] In the embodiment, the lifting mechanism 12 further comprises four guide members 124 arranged around the four sides of the battery replacement platform 13 along the length and width directions of the frame body 11 for guiding the lifting of the battery replacement platform 13. By arranging the guide members 124 on the opposite sides or around the battery replacement platform 13, the stability and reliability of the lifting operation of the battery replacement platform 13 are achieved, so that the battery replacement equipment 100 can be lifted to a position suitable for disassembling and assembling the battery of the battery replacement vehicle. Further, the battery replacement platform 13 can be further lifted to different heights to meet different heights of automobile chassis and enhance the universality of use. In other alternative embodiments, the number of guide members 124 is not limited to four. For example, two guide members 124 can be arranged on the opposite sides of the battery replacement platform 13, wherein the guide members 124 are preferably arranged on the two sides of the battery replacement platform 13 close to the partition plate 113, so that the guide members 124 can cooperate with the lifting assembly 122 to further improve the lifting stability.

[0325] In the embodiment, the guide member 124 comprises a first connecting rod 1241 and a second connecting rod 1242 hingedly connected to each other; one end of the first connecting rod 1241 is rotatably connected to the frame body 11, and the other end is slidably connected to the battery replacement platform 13; one end of the second connecting rod 1242 is slidably connected to the battery replacement platform 13, and the other end is rotatably connected to the frame body 11, so that the guide member 124 can be unfolded or folded with the battery replacement platform 13 during the lifting process to guide the lifting of the battery replacement platform 13 in the height direction. The above structure enhances the flexibility of the connection of the guide member 124 to the frame body 11 and the battery replacement platform 13, so that the height of the battery replacement platform 13 is adjustable, which meets the battery replacement of the battery replacement platform 13 for different chassis heights of electric vehicles, and further enhances the universality of the battery replacement equipment 100. At the same time, the overall height of the guide member 124 of this structure is relatively low, which is beneficial to the reduction of the height of the entire battery replacement equipment 100. Because the space under the chassis is limited, and the size of the battery pack of a heavy truck is large, a low-height battery replacement equipment 100 is required to adapt.

[0326] In the embodiment, the battery replacing platform 13 comprises a support frame 131 located at the bottom of the battery replacing platform 13, the support frame 131 is provided with a matching part 1311 matched with the lifting mechanism 12 on the side wall facing the partition plate 113, so that the support frame 131 can be driven to rise and fall by the lifting mechanism 12; the battery replacing platform 13 further comprises a first layer plate 132 and a second layer plate 133 respectively located above the support frame 131 and movably connected with the support frame 131, the first layer plate 132 is located above the second layer plate 133; the first layer plate 132 is provided with a battery positioning column 134 for positioning the battery pack on the battery replacing vehicle and an unlocking mechanism 135 for unlocking the battery pack, wherein the unlocking mechanism 135 can assist in positioning during the positioning of the battery replacing equipment 100 and the battery pack on the electric vehicle; the second layer plate 133 is provided with a vehicle positioning column 136 for positioning the battery replacing vehicle, and the second layer plate 133 has an extension part 1331 extending out of the frame main body 11 along the vertical walking direction, and the vehicle positioning column 136 is arranged on the extension part 1331 of the second layer plate 133. With this structure, the accuracy of the connection between the battery pack and the chassis of the battery replacing vehicle is further enhanced, the fit between the battery and the bottom of the battery replacing vehicle during the battery replacing process is improved, the fastening of the battery connected to the battery replacing vehicle is ensured, and at the same time, only the second layer plate 133 is provided with the extension part 1331, so that the size of other areas of the entire battery replacing equipment 100 does not need to be increased, the positioning with the battery pack is met, and the cost is saved. Further, by arranging the first layer plate 132 and the second layer plate 133 to be staggered in the horizontal direction and the height direction, the height difference between the first layer plate 132 and the second layer plate 133 can be further reduced, so as to achieve the purpose of reducing the entire battery replacing platform 13, so that the height of the battery replacing equipment 100 is further compressed to meet the minimum height requirement of heavy truck battery replacement. At the same time, the battery positioning column 134 and the vehicle positioning column 136 are respectively arranged on the first layer plate 132 and the second layer plate 133 to correspondingly position the battery pack and the battery replacing vehicle, so that the battery replacing equipment 100 can be accurately positioned to the battery pack, thereby effectively performing the battery dismounting and mounting.

[0327] Specifically, in the embodiment, the lifting part 1221 is a cam structure, the matching part 1311 is a sliding groove structure extending in the horizontal direction, one end of the cam structure is arranged in the sliding groove structure, the gear 12321 drives the cam structure to rotate, the cam structure can move horizontally in the sliding groove structure, and simultaneously drives the sliding groove structure to move upward, thereby realizing the lifting of the support frame 131.

[0328] In the embodiment, the support frame 131 is provided with a guide mechanism 137 and a moving mechanism 138. The guide mechanism 137 includes guide rails 1371 perpendicular to the walking direction and two third sliding blocks 1372 and two fourth sliding blocks 1373 arranged on the guide rails 1371. The first layer plate 132 is connected to the third sliding blocks 1372, and the second layer plate 133 is connected to the fourth sliding blocks 1373. Along the unlocking direction, the two third sliding blocks 1372 are arranged on the front side and the rear side of the two fourth sliding blocks 1373, respectively. The length of the second layer plate 133 along the extension direction of the guide rails 1371 is shorter than that of the first layer plate 132. At least one end of the second layer plate 133 along the extension direction of the guide rails 1371 is provided with an avoiding area 1332 to facilitate the connection of the first layer plate 132 and the two third sliding blocks 1372. The moving mechanism 138 includes a first moving unit 1381 and a second moving unit 1382. The first moving unit 1381 is arranged on the support frame 131 and connected and drives the first layer plate 132 to move back and forth along the extension direction of the guide rails 1371. The second moving unit 1382 is arranged on the support frame 131 and connected and drives the second layer plate 133 to move back and forth along the extension direction of the guide rails 1371. The second layer plate 133 is provided with an avoiding groove 1333 for the connecting piece of the first layer plate 132 to pass through and be connected with the first moving unit 1381. By supporting the first layer plate 132 and the second layer plate 133 on the support frame 131, and by designing the sizes of the second layer plate 133 and the first layer plate 132 to be different, or by providing the avoiding area 1332 on the second layer plate 133, the first layer plate 132 and the second layer plate 133 are connected to a single guide rail through different sliding blocks, which effectively reduces the number of guide rails, saves space, and further meets the design requirements of the guide mechanism 137, the first layer plate 132 and the second layer plate 133 in terms of compact structure and reduced component height. Meanwhile, the first moving unit 1381 and the second moving unit 1382 for driving the first layer plate 132 and the second layer plate 133 to move are arranged side by side on the support frame 131, and the second layer plate 133 is provided with the avoiding groove 1333 to facilitate the connection of the first layer plate 132 above the second layer plate 133 with the first moving unit 1381, so that the connection of the moving mechanism 138 with the first layer plate 132 and the second layer plate 133 is convenient, which meets the design requirements of compact structure and reduced component height, and further reduces the height of the whole battery replacement equipment 100. Specifically, in the embodiment, a plurality of avoiding grooves 1333 are arranged on the second layer plate 133 in a direction perpendicular to the walking direction of the battery replacement equipment 100, to facilitate the plurality of connecting pieces of the first layer plate 132 to pass through the avoiding grooves 1333 and be connected with the first moving unit 1381. The avoiding area 1332 is arranged on both sides of the second layer plate 133 perpendicular to the walking direction of the battery replacement equipment 100. The avoiding area 1332 makes the second layer plate 133 narrower than the first layer plate 132 at this position, thereby leaving space for the connection of the third sliding blocks 1372 and the first layer plate 132.By setting the avoiding groove 1333 and the avoiding area 1332 on the second layer plate, the up-down misplacement installation and movement of the first layer plate 132 and the second layer plate 133 are realized.

[0329] In the embodiment, the crossbeam 111 includes the first area 1111 corresponding to the extending part 1331 and the second area 1112 located on both sides of the extending part 1331, the height of the first area 1111 is lower than the height of the second area 1112, so that when the battery replacing platform 13 is not lifted, the first layer plate 132 is lower than the second area 1112. The first area 1111 has a height difference with the second area 1112 in the height direction, so that the middle area 114 has a larger space in the height direction, increasing the compression limit of the battery replacing platform 13 in the height direction, further meeting the minimum height requirement of heavy truck battery replacement.

[0330] Embodiment 2

[0331] As shown in Figure 18 , the embodiment also provides an assembly method of the battery replacing equipment 100, which is suitable for the battery replacing equipment 100 in the above-mentioned embodiment 1, and the assembly method includes the following steps:

[0332] installing the lifting mechanism 12 and the battery replacing platform 13 in the frame body 11 to form the battery replacing module 1;

[0333] assembling the first walking wheel set 21 to form the first walking module 2;

[0334] assembling the second walking wheel set 31 to form the second walking module 3;

[0335] installing the first walking module 2 and the second walking module 3 on both sides of the battery replacing module 1 along the walking direction respectively to form the battery replacing equipment 100.

[0336] The battery replacing equipment 100 is assembled in a modular way, since the overall structure of each module is small, the assembly is convenient; and the corresponding mechanisms required are assembled into each module respectively, which can reduce the complexity of assembly and the possibility of errors. At the same time, each module can be assembled according to the connection relationship and position relationship between the modules, and the workers can assemble each module according to the actual situation, which enhances the flexibility of assembling and debugging of each module. Further, after other components are respectively installed in each module according to the actual situation, these modules can be assembled together according to the connection relationship and position relationship between the components in each module, which can save the space occupied by the on-site assembly before the modules are assembled together.

[0337] In the embodiment, the steps of installing the lifting mechanism 12 and the battery replacement platform 13 in the frame body 11 to form the battery replacement module 1, assembling the first walking wheel set 21 to form the first walking module 2, and assembling the second walking wheel set 31 to form the second walking module 3 are simultaneously implemented.

[0338] By simultaneously implementing the above three steps, the efficiency of the staff assembling the battery replacement equipment 100 is improved, a plurality of staff can be used to simultaneously assemble the modules to reduce the total time for assembling the battery replacement equipment 100 and shorten the production cycle. Meanwhile, when the modules are not assembled with each other, different assembly workers can be arranged to install the corresponding mechanisms in the corresponding positions in the modules, so that the subsequent assembly workers can directly assemble the modules according to the positions of the corresponding mechanisms in the modules, the installation difficulty is relatively low, and after the installation is completed, the modules can be individually debugged.

[0339] In the embodiment, the frame body 11 includes two opposite transverse beams 111 and two opposite longitudinal beams 112, and two partition plates 113 parallel to the longitudinal beams 112 and connected with the transverse beams 111. The partition plates 113 divide the frame module into a middle area 114 and side areas 115 symmetrically arranged on both sides of the middle area 114. The lifting mechanism 12 is connected to the partition plates 113, and the lifting mechanism 12 is partially located in the side areas 115 and partially located in the middle area 114. The battery replacement platform 13 is arranged in the middle area 114 and connected with the lifting mechanism 12, so that the battery replacement platform 13 can be lifted by the lifting mechanism 12 to ascend and descend relative to the frame body 11 to replace the battery for the battery replacement vehicle.

[0340] The assembly method specifically includes the following steps in the step of installing the lifting mechanism 12 and the battery replacement platform 13 in the frame body 11 to form the battery replacement module 1.

[0341] The two transverse beams 111 and the two longitudinal beams 112 are arranged opposite to each other and connected by surrounding.

[0342] The two partition plates 113 are arranged parallel to the longitudinal beams 112 and connected with the transverse beams 111.

[0343] The lifting mechanism 12 is connected with the partition plates 113.

[0344] The battery replacement platform 13 is arranged in the middle area 114 and connected with the lifting mechanism 12.

[0345] The two transverse beams 111 and the two longitudinal beams 112 surround the frame structure, and the two partition plates 113 divide the frame structure into areas, which facilitates the installation of the lifting mechanism 12 and the battery replacement platform 13, and makes the battery replacement equipment 100 more compact, which is beneficial to improve the assembly efficiency of the battery replacement equipment 100.

[0346] In this embodiment, the first walking module 2 further includes a third walking wheel set 22, and the first walking wheel set 21 and the third walking wheel set 22 are relatively arranged on both sides of the battery swap device 100 parallel to the walking direction;

[0347] The assembly method specifically includes the following steps in the step of assembling the first traveling wheel set 21 to form the first traveling module 2:

[0348] The third walking wheel set 22 of the first walking module 2 is installed on a side of the battery exchange device 100 that is parallel to the walking direction and opposite to the first walking wheel set 21.

[0349] A third walking wheel group 22 is provided in the first walking module 2, and the first walking wheel group 21 and the third walking wheel group 22 are arranged relative to each other, which is conducive to ensuring the stability of the walking of the battery exchange equipment 100.

[0350] In this embodiment, the two second running wheel groups 31 are relatively arranged on both sides of the battery swapping device 100 parallel to the running direction;

[0351] The assembly method specifically includes the following steps in the step of assembling the second traveling wheel set 31 to form the second traveling module 3:

[0352] The two second running wheel groups 31 are installed opposite to each other on both sides of the battery exchange device 100 parallel to the running direction.

[0353] The two second walking wheel groups 31 are arranged on both sides of the battery exchange device 100 parallel to the walking direction, which is conducive to ensuring the stability of the battery exchange device 100 when walking.

[0354] In this embodiment, the two second traveling wheel sets 31 are each independently provided with a driving mechanism 311;

[0355] The assembly method specifically includes the following steps in the step of assembling the second traveling wheel set 31 to form the second traveling module 3:

[0356] A driving mechanism 311 is independently installed on each of the two second traveling wheel assemblies 31 .

[0357] When both second running wheel groups 31 are provided with a driving mechanism 311, a rotational torque can be applied to the battery exchange module 1 through the two second running wheel groups 31, so that the battery exchange module 1 can rotate in a horizontal plane with the first running wheel group 21 as the fulcrum, which can increase the rotational power of the battery exchange device 100 and increase the scope of application of the battery exchange device 100.

[0358] In other optional embodiments, the driving mechanism 311 can also be installed in only one of the two second walking wheel groups 31, and preferably, the driving mechanism 311 is arranged in the second walking wheel group 31 diagonally opposite to the first walking wheel group 21. Then, the assembling method specifically comprises the following step in the step of assembling the second walking wheel group 31 to form the second walking module 3: installing the driving mechanism 311 in the second walking wheel group 31 diagonally opposite to the first walking wheel group 21.

[0359] In the embodiment, the first walking module 2 further comprises a first walking frame 23, and the second walking module 3 further comprises a second walking frame 32, the first walking frame 23 and the second walking frame 32 are oppositely arranged on two sides of the battery replacing module 1 in the vertical walking direction, the first walking wheel group 21 and the third walking wheel group 22 are respectively arranged on two sides of the first walking frame 23 in the walking direction, and the two second walking wheel groups 31 are respectively arranged on two sides of the second walking frame 32 in the walking direction.

[0360] The assembling method further comprises the following steps in the step of assembling the first walking wheel group 21 to form the first walking module 2:

[0361] The first walking wheel group 21 and the third walking wheel group 22 are respectively arranged on two sides of the first walking frame 23 in the walking direction.

[0362] The first walking frame 23 is connected to one side of the battery replacing module 1 in the vertical walking direction.

[0363] And, the assembling method further comprises the following steps in the step of assembling the second walking wheel group 31 to form the second walking module 3:

[0364] The two second walking wheel groups 31 are respectively arranged on two sides of the second walking frame 32 in the walking direction.

[0365] The second walking frame 32 is connected to the other side of the battery replacing module 1 in the vertical walking direction.

[0366] The first walking module 2 and the second walking module 3 are respectively assembled, and then the first walking module 2 and the second walking module 3 are arranged on two sides of the battery replacing module 1 in the vertical walking direction, which can save the space occupied by the on-site assembly before the modules are assembled with each other, and facilitate to improve the assembly efficiency.

[0367] In the embodiment, the upper side and the lower side of the first walking wheel group 21 are respectively connected to the first walking frame 23 through the first rotating assembly 24, the first rotating assembly 24 comprises a fixed part 241 and a rotating part 242 which are rotationally connected to each other and can bear radial force and axial force, the fixed part 241 is connected to the first walking frame 23, and the rotating part 242 is connected to the upper side or the lower side of the first walking wheel group 21.

[0368] The assembling method further comprises the following steps in the step of mounting the first walking wheel set 21 and the third walking wheel set 22 on the two sides of the first walking frame 23 along the walking direction:

[0369] The first rotating assembly 24 is mounted above and below the first walking wheel set 21 respectively;

[0370] The fixed part 241 of the first rotating assembly 24 is connected with the first walking wheel set 21;

[0371] The rotating part 242 of the first rotating assembly 24 is connected with the first walking frame 23.

[0372] The rotating connection between the first walking frame 23 and the first walking wheel set 21 is realized through the fixed part 241 and the rotating part 242 connected with each other, and the fixed part 241 and the rotating part 242 can bear radial force and axial force, so that the stability of the rotating connection is better, and the stability of the first walking frame 23 during walking is improved.

[0373] In other optional embodiments, the rotating part 242 can be connected with the first walking frame 23, and the fixed part 241 can be connected with the upper side or the lower side of the first walking wheel set 21. The assembling method further comprises the following steps in the step of mounting the first walking wheel set 21 and the third walking wheel set 22 on the two sides of the first walking frame 23 along the walking direction: the first rotating assembly 24 is mounted above and below the first walking wheel set 21 respectively; the rotating part 242 of the first rotating assembly 24 is connected with the first walking wheel set 21; and the fixed part 241 of the first rotating assembly 24 is connected with the first walking frame 23.

[0374] In the embodiment, the front side and the rear side of the third walking wheel set 22 along the walking direction are connected with the first walking frame 23 through the first sliding assembly 25 respectively, the first sliding assembly 25 comprises the first sliding rail 251 and the first sliding block 252 matched with each other, the first sliding rail 251 is connected with the first walking frame 23, and the first sliding block 252 is connected with the third walking wheel set 22, so that the third walking wheel set 22 can slide relative to the first walking frame 23 along the direction perpendicular to the walking direction; the front side and the rear side of the second walking wheel set 31 along the walking direction are connected with the second walking frame 32 through the second sliding assembly 33 respectively, the second sliding assembly 33 comprises the second sliding rail 331 and the second sliding block 332 matched with each other, the second sliding rail 331 is connected with the second walking frame 32, and the second sliding block 332 is connected with the second walking wheel set 31, so that the second walking wheel set 31 can slide relative to the second walking frame 32 along the direction perpendicular to the walking direction;

[0375] The assembling method further comprises the following steps in the step of mounting the first walking wheel set 21 and the third walking wheel set 22 on the two sides of the first walking frame 23 along the walking direction:

[0376] The first sliding assembly 25 is respectively installed on the front side and the rear side of the third walking wheel set 22 along the walking direction;

[0377] The first sliding rail 251 in the first sliding assembly 25 is connected with the first walking frame 23, and the first sliding block 252 is connected with the third walking wheel set 22;

[0378] The assembling method further comprises the following steps in the step of mounting the two second walking wheel sets 31 on the two sides of the second walking frame 32 along the walking direction:

[0379] The second sliding assembly 33 is respectively installed on the front side and the rear side of the second walking wheel set 31 along the walking direction;

[0380] The second sliding rail 331 of the second sliding assembly 33 is connected with the second walking frame 32, and the second sliding block 332 is connected with the second walking wheel set 31.

[0381] The third walking wheel set 22 is connected with the first walking frame 23 through the first sliding assembly 25, and the second walking wheel set 31 is connected with the second walking frame 32 through the second sliding assembly 33, which provides an implementation manner for the displacement of the battery replacement module 1 in the horizontal plane during rotation; and the cooperation of the first sliding rail 251 and the first sliding block 252 and the cooperation of the second sliding rail 331 and the second sliding block 332 make the sliding more stable.

[0382] In other optional embodiments, the first sliding block 252 can be connected with the first walking frame 23, the first sliding rail 251 can be connected with the third walking wheel set 22, the second sliding block 332 can be connected with the second walking frame 32, and the second sliding rail 331 can be connected with the second walking wheel set 31. Then the assembling method further comprises the following steps in the step of mounting the first walking wheel set 21 and the third walking wheel set 22 on the two sides of the first walking frame 23 along the walking direction: the first sliding assembly 25 is respectively installed on the front side and the rear side of the third walking wheel set 22 along the walking direction; the first sliding block 252 in the first sliding assembly 25 is connected with the first walking frame 23, and the first sliding rail 251 is connected with the third walking wheel set 22; the assembling method further comprises the following steps in the step of mounting the two second walking wheel sets 31 on the two sides of the second walking frame 32 along the walking direction: the second sliding assembly 33 is respectively installed on the front side and the rear side of the second walking wheel set 31 along the walking direction; the second sliding block 332 of the second sliding assembly 33 is connected with the second walking frame 32, and the second sliding rail 331 is connected with the second walking wheel set 31.

[0383] In the embodiment, the first walking frame 23 is further provided with a first connecting seat 26, the front side and the rear side of the third walking wheel set 22 are connected with the first connecting seat 26 through first sliding assemblies 25 respectively, and the upper side and the lower side of the first connecting seat 26 are connected with the first walking frame 23 through second rotating assemblies 27 respectively; the second walking frame 32 is further provided with a second connecting seat 34, the front side and the rear side of the second walking wheel set 31 are connected with the second connecting seat 34 through second sliding assemblies 33 respectively, and the upper side and the lower side of the second connecting seat 34 are connected with the second walking frame 32 through second rotating assemblies 27 respectively;

[0384] The assembling method further comprises the following steps in the step of mounting the first walking wheel set 21 and the third walking wheel set 22 on the two sides of the first walking frame 23 along the walking direction respectively:

[0385] The first sliding assemblies 25 of the front side and the rear side of the third walking wheel set 22 are connected with the first connecting seat 26 respectively;

[0386] The first connecting seat 26 is connected with the first walking frame 23 through the second rotating assemblies 27 installed on the upper side and the lower side of the first connecting seat 26 respectively;

[0387] The assembling method further comprises the following steps in the step of mounting the two second walking wheel sets 31 on the two sides of the second walking frame 32 along the walking direction respectively:

[0388] The second sliding assemblies 33 of the front side and the rear side of the second walking wheel set 31 are connected with the second connecting seat 34 respectively;

[0389] The second connecting seat 34 is connected with the second walking frame 32 through the second rotating assemblies 27 installed on the upper side and the lower side of the second connecting seat 34 respectively.

[0390] The third walking wheel set 22 can slide relative to the first connecting seat 26, the second walking wheel set 31 can slide relative to the second connecting seat 34, and the first connecting seat 26 and the second connecting seat 34 can rotate relative to the first walking frame 23 and the second walking frame 32 respectively; in addition, the first sliding assemblies 25 are arranged on the front side and the rear side of the third walking wheel set 22, and the second sliding assemblies 33 are arranged on the front side and the rear side of the second walking wheel set 31, so that the sliding of the third walking wheel set 22 and the second walking wheel set 31 is more stable, and the sliding deviating from the preset sliding track is avoided.

[0391] In the embodiment, the second sliding assembly 33 is provided with a locking mechanism having a locked state and an unlocked state. When the locking mechanism is in the locked state, the relative sliding of the second sliding assembly 33 is limited, so that when the second walking wheel set 31 is driven, the battery swapping equipment 100 can be driven to walk along the preset track 101. When the locking mechanism is in the unlocked state, the second sliding assembly 33 can slide relatively, so that when the second walking wheel set 31 is driven, the second walking wheel set 31 moves a preset distance along the preset track 101, and the battery swapping equipment 100 can be driven to rotate around the first walking wheel set 21 as a pivot in the horizontal plane, so as to realize the alignment of the battery swapping module 1 and the battery of the battery swapping vehicle.

[0392] The assembly method further comprises the following steps in the step of mounting the two second walking wheel sets 31 along the walking direction on the two sides of the second walking frame 32:

[0393] The locking mechanism is mounted in the second sliding assembly 33, so that when the locking mechanism is in the locked state, the relative sliding of the second sliding assembly 33 is limited; and when the locking mechanism is in the unlocked state, the second sliding assembly 33 can slide relatively.

[0394] In the process of walking of the battery swapping equipment 100 along the walking direction defined by the preset track 101 to align with the battery of the battery swapping vehicle, the locking mechanism is in the locked state, that is, the second sliding rail 331 and the second sliding block 332 of the second sliding assembly 33 cannot slide relatively, so that the battery swapping equipment 100 does not shake in the early walking process due to the sliding of the second sliding assembly 33, thereby improving the stability of the battery swapping equipment 100 when walking. After the battery swapping equipment 100 walks to the position below the battery swapping vehicle, the locking mechanism is changed to the unlocked state, so that the second sliding rail 331 and the second sliding block 332 can slide relatively, and then the relative angle between the battery swapping equipment 100 and the battery swapping vehicle is adjusted.

[0395] In the embodiment, the locking mechanism includes a retractable locking rod. When the locking mechanism is in the locked state, the locking rod extends from the original position and abuts against or inserts into the second sliding rail 331 at a preset position to limit the relative movement of the second sliding rail 331 and the second sliding block 332. When the locking mechanism is in the unlocked state, the locking rod is retracted to the original position.

[0396] The assembly method further comprises the following steps in the step of mounting the locking mechanism in the second sliding assembly 33:

[0397] The locking rod is mounted in the locking mechanism, so that when the locking mechanism is in the locked state, the locking rod extends from the original position and abuts against or inserts into the second sliding rail 331 at a preset position to limit the relative movement of the second sliding rail 331 and the second sliding block 332. When the locking mechanism is in the unlocked state, the locking rod is retracted to the original position.

[0398] By setting the locking rod to be retractable, the switching between the locking state and the unlocking state of the locking mechanism is realized, and the control of whether the second sliding assembly 33 can slide is realized. When the locking rod is extended and pressed against the second sliding rail 331, the second sliding block 332 is prevented from sliding relative to the second sliding rail 331 by friction, or the locking rod is inserted into the second sliding rail 331 to further improve the reliability of limiting the sliding of the second sliding assembly 33.

[0399] In this embodiment, the retracting direction of the locking rod is directed to the side surface of the second sliding rail 331, and the end shape of the locking rod is matched with the shape of the side surface of the second sliding rail 331; there are two locking rods, and the two locking rods are respectively arranged on the upper and lower side surfaces of the second sliding rail 331.

[0400] The assembly method further includes the following steps in the step of installing the locking rod in the locking mechanism:

[0401] The retracting direction of the locking rod is set to be directed to the side surface of the second sliding rail 331.

[0402] The locking rod is installed on the upper and lower side surfaces of the second sliding rail 331, respectively.

[0403] The two locking rods act on the second sliding rail 331 from the upper and lower sides of the second sliding rail 331, so that the two locking rods can clamp the second sliding rail 331 during the locking process, so that the friction is larger and the locking effect is better. The shape of the end of the locking rod is matched with the shape of the side surface of the second sliding rail 331, so that the locking rod and the second sliding rail 331 are more firmly engaged, which is beneficial to further improve the locking effect of the locking rod and avoid the locking rod from being separated from the second sliding rail 331. In other optional embodiments, a locking hole for inserting the locking rod can be provided in the second sliding rail 331 for locking, and the pin hole cooperation between the locking rod and the locking hole further improves the locking effect.

[0404] In this embodiment, the first walking wheel set 21, the second walking wheel set 31, and the third walking wheel set 22 all have wheels 4 that can walk along the preset track 101, and the wheels 4 are groove wheels with lower edges on both sides that can cooperate with the preset track 101; the first walking wheel set 21, the second walking wheel set 31, and the third walking wheel set 22 are all connected with a walking retaining mechanism 5, and the walking retaining mechanism 5 is arranged across the preset track 101, so that the wheels 4 of the first walking wheel set 21, the second walking wheel set 31, and the third walking wheel set 22 are limited to walk on the preset track 101;

[0405] The assembly method includes the following steps in the steps of assembling the first walking wheel set 21 to form the first walking module 2 and assembling the second walking wheel set 31 to form the second walking module 3:

[0406] The wheels 4 are arranged in the first walking wheel set 21, the second walking wheel set 31 and the third walking wheel set 22;

[0407] The wheels 4 are engaged with the preset track 101;

[0408] Alternatively, the first walking wheel set 21, the second walking wheel set 31 and the third walking wheel set 22 have wheels capable of walking along the preset track 101 and walking retaining mechanisms 5 connected with the wheels, the walking retaining mechanisms 5 are arranged across the preset track 101, so that the wheels 4 of the first walking wheel set 21, the second walking wheel set 31 and the third walking wheel set 22 are limited to walk on the preset track 101;

[0409] The assembly method includes the following steps in the steps of assembling the first walking wheel set 21 to form the first walking module 2 and assembling the second walking wheel set 31 to form the second walking module 3:

[0410] The wheels 4 are arranged in the first walking wheel set 21, the second walking wheel set 31 and the third walking wheel set 22;

[0411] The first walking wheel set 21, the second walking wheel set 31 and the third walking wheel set 22 are respectively connected with the walking retaining mechanisms 5;

[0412] The walking retaining mechanisms 5 are arranged across the preset track 101.

[0413] The wheels 4 are engaged with the preset track 101, so that the structure of the battery replacement equipment 100 is more compact; alternatively, the wheels are limited on the track by connecting the walking retaining mechanisms with the wheels; and any one of the above structures can ensure that the wheels 4 of the first walking wheel set 21, the second walking wheel set 31 and the third walking wheel set 22 will not slip off or deviate from the preset track 101 when moving along the preset guide rail 1371, thereby further ensuring the walking stability of the battery replacement equipment 100.

[0414] In the embodiment, the walking retaining mechanism 5 includes a plurality of limiting portions 51 arranged across the preset track 101 on both sides and a mounting portion 52 for mounting the limiting portions 51, the mounting portion 52 is arranged across the preset track 101 along the width direction of the preset track 101 and connected with the plurality of limiting portions 51 on both sides of the preset track 101, and the limiting portions 51 are rotatably arranged so as to roll along the side wall of the preset track 101 during the walking of the battery replacement equipment 100 along the preset track 101;

[0415] The assembly method further includes the following steps in the step of arranging the walking retaining mechanism 5 across the preset track 101:

[0416] The mounting portion 52 is arranged on the preset track 101 along the width direction of the preset track 101 and connected with the plurality of limiting portions 51 on both sides of the preset track 101.

[0417] The limiting portion 51 is rotatably mounted on the side wall of the preset track 101.

[0418] The mounting portion 52 of the walking maintaining mechanism 5 is used for connecting the first walking wheel set 21, the second walking wheel set 31 and the third walking wheel set 22, which ensures the reliability of the connection; the limiting portion 51 of the walking maintaining mechanism 5 can roll along the side wall of the preset track 101, which reduces the friction on the preset track 101 and ensures the limiting of the walking of the wheels 4 of the first walking wheel set 21, the second walking wheel set 31 and the third walking wheel set 22.

[0419] In the embodiment, the mounting portion 52 includes a mounting plate 521 located above the preset track 101 and an extension plate 522 extending downward from both sides of the mounting plate 521 to both sides of the preset track 101, the extension plate 522 is used for connecting the limiting portion 51, and the mounting plate 521 has a wheel accommodating area 523 for accommodating the wheels 4 of the battery swap device 100, so that the wheels 4 are attached to the upper surface of the preset track 101 and walk on the preset track 101;

[0420] The assembly method further includes the following steps in the step of arranging the walking maintaining mechanism 5 on the preset track 101:

[0421] The mounting plate 521 is connected with the first walking wheel set 21, the second walking wheel set 31 or the third walking wheel set 22;

[0422] The extension plate 522 is connected with the limiting portion 51.

[0423] The extension plate 522 facilitates the installation of the limiting portion 51, the wheel accommodating area 523 of the mounting plate 521 facilitates the attachment of the wheels 4 to the surface of the preset track 101 and the walking of the wheels 4 on the preset track 101, and the whole structure is more compact.

[0424] In the embodiment, the battery swap device 100 further includes electrical elements 6, which are used for controlling the movement of the first walking module 2, the second walking module 3 and the battery swap module 1; part of the electrical elements 6 is arranged in the first walking frame 23; the battery swap device 100 further includes an electrical frame 7, which is connected to the first walking frame 23, and part of the electrical elements 6 is arranged in the electrical frame 7;

[0425] The assembly method further includes the following steps after the step of assembling the first walking wheel set 21 to form the first walking module 2:

[0426] At least part of the electrical elements 6 is installed in the first walking frame 23;

[0427] The electrical frame 7 is connected to the first walking frame 23, and part of the electrical components 6 is installed in the electrical frame 7.

[0428] The electrical components 6 are installed in the first walking frame 23 and the electrical frame 7, which is compact in structure, simple and convenient to install, and has a certain protective effect on the electrical components 6.

[0429] In the embodiment, the number of lifting mechanisms 12 is two, and the two lifting mechanisms 12 are symmetrically arranged on both sides of the battery replacement platform 13 along the walking direction.

[0430] The assembly method includes the following steps in the step of installing the lifting mechanism 12 and the battery replacement platform 13 in the frame body 11 to form the battery replacement module 1:

[0431] The two lifting mechanisms 12 are symmetrically installed on both sides of the battery replacement platform 13 along the walking direction.

[0432] The two lifting mechanisms 12 can be arranged on both sides of the battery replacement platform 13 at the same time, improving the assembly efficiency, and the two lifting mechanisms 12 can disperse the support force of the battery replacement platform 13 when driving the battery replacement platform 13, increase the contact points with the battery replacement platform 13, and further enhance the stability and stability of the battery replacement platform 13 moving in the height direction when carrying the battery pack, avoiding the damage of the battery pack caused by uneven stress of the battery replacement platform 13.

[0433] In the embodiment, the lifting mechanism 12 includes a driving assembly 121, a lifting assembly 122, and a transmission assembly 123. The driving assembly 121 is arranged on the side of the partition plate 113 away from the battery replacement platform 13 and located in the side area 115, and is used to provide power for the lifting mechanism 12 to lift the battery replacement platform 13. The lifting assembly 122 is arranged on the side of the partition plate 113 close to the battery replacement platform 13 and located in the middle area 114, and is connected with the battery replacement platform 13 to drive the battery replacement platform 13 to lift along the height direction of the frame body 11. The transmission assembly 123 is arranged through the partition plate 113, and the transmission assembly 123 is connected between the driving assembly 121 and the lifting assembly 122 to enable the driving assembly 121 to drive the lifting assembly 122 to lift.

[0434] The assembly method further includes the following steps in the step of installing the lifting mechanism 12 and the battery replacement platform 13 in the frame body 11 to form the battery replacement module 1:

[0435] The driving assembly 121 is installed on the side of the partition plate 113 away from the battery replacement platform 13 and located in the side area 115;

[0436] The lifting assembly 122 is installed on the side of the partition plate 113 close to the battery replacement platform 13 and located in the middle area 114, and is connected with the battery replacement platform 13;

[0437] The transmission assembly 123 is installed through the partition plate 113 and connected between the driving assembly 121 and the lifting assembly 122.

[0438] The driving assembly 121 provides power for the lifting mechanism 12 to lift the battery replacement platform 13, the lifting assembly 122 drives the battery replacement platform 13 to move along the height direction of the frame body 11, and the transmission assembly 123 drives the driving assembly 121 to drive the lifting assembly 122 to move, so that the battery replacement platform 13 can move the battery pack smoothly.

[0439] In the embodiment, the transmission assembly 123 includes a connecting part 1231 and a transmission part 1232. One end of the connecting part 1231 is sleeved on the power output shaft of the driving assembly 121, and the other end extends through the partition plate 113 to the middle area 114. The transmission part 1232 is located in the middle area 114 and arranged on the partition plate 113. The transmission part 1232 is connected with the other end of the connecting part 1231, so that it can be driven by the driving assembly 121 to move back and forth along the vertical walking direction. The lifting assembly 122 includes a lifting part 1221. One end of the lifting part 1221 is connected with the transmission part 1232, and the other end is connected with the battery replacement platform 13. The transmission part 1232 drives the lifting part 1221 to move back and forth along the vertical walking direction, so that the battery replacement platform 13 can move up and down along the height direction relative to the frame body 11.

[0440] The assembly method further includes the following steps in the step of installing the lifting mechanism 12 and the battery replacement platform 13 in the frame body 11 to form the battery replacement module 1.

[0441] One end of the connecting part 1231 is sleeved on the power output shaft of the driving assembly 121, and the other end extends through the partition plate 113 to the middle area 114.

[0442] The transmission part 1232 is arranged in the middle area 114 and installed on the partition plate 113, and connected with the other end of the connecting part 1231.

[0443] One end of the lifting part 1221 is connected with the transmission part 1232, and the other end is connected with the battery replacement platform 13.

[0444] By arranging the connecting part 1231 and the transmission part 1232 which are connected with each other and can move synchronously on the driving assembly 121 and the partition plate 113 respectively, the power conversion of the driving assembly 121 driving the lifting assembly 122 is accurately and stably realized. By arranging the lifting part 1221, the stability and reliability of the lifting operation of the battery replacement platform 13 are realized.

[0445] In the embodiment, the connecting part 1231 comprises a positioning structure 12311, two recesses 12312 and a limiting plate 12313. The positioning structure 12311 is sleeved on the power output shaft of the driving assembly 121 and is threadedly connected with the power output shaft, so that the positioning structure 12311 moves along the extension direction of the power output shaft. Along the moving direction of the positioning structure 12311, the two recesses 12312 are symmetrically arranged on the two sides of the positioning structure 12311 and accommodate the protrusions 12314 on the two opposite side surfaces of the positioning structure 12311, and the protrusions 12314 extend away from the positioning structure 12311 and do not exceed the maximum thickness of the recesses 12312. The limiting plate 12313 is located on the side of the connecting part 1231 close to the transmission part 1232 and is slidably connected with the partition plate 113 along the moving direction of the positioning structure 12311. One end of the limiting plate 12313 is connected with the two recesses 12312, and the other end penetrates through the partition plate 113 and is connected with the transmission part 1232.

[0446] The assembling method comprises the following steps in the step of sleeving one end of the connecting part 1231 on the power output shaft of the driving assembly 121 and extending the other end through the partition plate 113 to the intermediate area 114:

[0447] Sleeving the positioning structure 12311 on the power output shaft of the driving assembly 121 and threadedly connecting it with the power output shaft.

[0448] Symmetrically arranging the two recesses 12312 on the two sides of the positioning structure 12311 and gap-fitting between the protrusions 12314 on the corresponding two sides of the positioning structure 12311.

[0449] Slidably installing the limiting plate 12313 on the partition plate 113 and locating it on the side of the connecting part 1231 close to the transmission part 1232, and connecting one end of the limiting plate 12313 with the two recesses 12312 and penetrating the other end through the partition plate 113 and connecting it with the transmission part 1232.

[0450] Through the mutual cooperation between the positioning structure 12311, the recesses 12312 and the limiting plate 12313, the transmission part 1232 moves in the same direction with the positioning structure 12311, and the reliability and stability of the transmission are ensured. By arranging the recesses 12312 to limit and fix the two protrusions 12314 of the positioning structure 12311, the concave-convex structure only limits in the moving direction, which not only enhances the transmission effect of the linear motion of the connecting part 1231 along the extension direction of the power output shaft, but also ensures the freedom degree of the positioning structure 12311 in the non-moving direction.

[0451] In this embodiment, the transmission part 1232 includes a meshing gear 12321 and a rack 12322. The rack 12322 is movably arranged on the partition plate 113, and the rack 12322 is fixedly engaged with the tooth block provided at the other end of the limit plate 12313 so that the rack 12322 can be driven by the driving assembly 121 to move forward and backward along the vertical walking direction; when the rack 12322 moves forward and backward and drives the gear 12321 to rotate, the lifting member 1221 rotates with the gear 12321 to drive the battery exchange platform 13 to rise and fall;

[0452] The assembly method specifically includes the following steps in which the transmission portion 1232 is disposed in the middle area 114 and mounted on the partition plate 113 and connected to the other end of the connection portion 1231:

[0453] The rack 12322 is movably mounted on the partition plate 113, and the tooth block 12323 is mounted on the other end of the limiting plate 12313, and the tooth block 12323 is engaged and fixed with the rack 12322;

[0454] Install the gear 12321 on the lifting member 1221 and mesh the gear 12321 with the rack 12322 .

[0455] The rack 12322 is engaged with the tooth block, so that the rack 12322 can be driven by the driving component 121 to move forward and backward along the vertical walking direction, thereby driving the gear 12321 to rotate, and then driving the lifting part 1221 to move through the gear 12321, thereby driving the battery exchange platform 13 to rise and fall, ensuring the stability of the battery exchange platform 13 rising and falling.

[0456] In this embodiment, there are two gears 12321 , which are arranged along the extension direction of the rack 12322 and located at both ends of the rack 12322 and coaxially arranged with the lifting member 1221 ;

[0457] The assembly method further includes the following steps in the step of meshing the gear 12321 with the rack 12322 and connecting the gear 12321 with the lifting member 1221:

[0458] Install the two gears 12321 coaxially with the lifting member 1221 respectively;

[0459] The two gears 12321 are placed at both ends along the extension direction of the rack 12322 and meshed with the rack 12322 .

[0460] Two gears 12321 are arranged on one side of the battery replacement platform 13 along the vertical walking direction. When the gears 12321 drive the battery replacement platform 13, the stress of the battery replacement platform 13 can be balanced, the contact points with the battery replacement platform 13 are increased, and the stability and stability of the battery replacement platform 13 moving in the height direction when carrying the battery pack can be enhanced, so as to avoid uneven stress of the battery replacement platform 13 and damage to the battery pack.

[0461] In the embodiment, the lifting mechanism 12 further comprises guide members 124, at least two guide members 124 are arranged on the periphery of the battery replacement platform 13 along the length direction and / or the width direction of the frame body 11 to guide the lifting of the battery replacement platform 13.

[0462] The assembly method further comprises the following steps in the step of installing the lifting mechanism 12 and the battery replacement platform 13 in the frame body 11 to form the battery replacement module 1:

[0463] The guide members 124 are arranged on the periphery of the battery replacement platform 13 along the length direction and / or the width direction of the frame body 11.

[0464] By arranging the guide members 124 on the opposite sides or periphery of the battery replacement platform 13, the stability and reliability of the lifting operation of the battery replacement platform 13 are achieved, so that the battery replacement equipment 100 can be lifted to a position suitable for disassembling and assembling the battery to disassemble and assemble the battery on the battery replacement vehicle.

[0465] In the embodiment, the guide members 124 comprise first connecting rods 1241 and second connecting rods 1242 hinged to each other; one end of the first connecting rod 1241 is rotatably connected to the frame body 11, and the other end is slidably connected to the battery replacement platform 13; one end of the second connecting rod 1242 is slidably connected to the battery replacement platform 13, and the other end is rotatably connected to the frame body 11, so that the guide members 124 can be unfolded or folded during the lifting of the battery replacement platform 13 to guide the lifting of the battery replacement platform 13 in the height direction.

[0466] The assembly method further comprises the following steps in the step of arranging the guide members 124 on the periphery of the battery replacement platform 13 along the length direction and / or the width direction of the frame body 11:

[0467] The first connecting rod 1241 and the second connecting rod 1242 are hinged;

[0468] One end of the first connecting rod 1241 is rotatably connected to the frame body 11, and the other end is slidably connected to the battery replacement platform 13;

[0469] One end of the second connecting rod 1242 is slidably connected to the battery replacement platform 13, and the other end is rotatably connected to the frame body 11.

[0470] The structure enhances the flexibility of the guide 124 connected to the frame body 11 and the battery replacement platform 13, so that the height of the battery replacement platform 13 is adjustable, which meets the battery replacement of the battery replacement platform 13 for different chassis heights of electric vehicles, and further enhances the universality of the battery replacement equipment 100.

[0471] In the embodiment, the battery replacement platform 13 comprises a support frame 131 located at the bottom of the battery replacement platform 13, and the support frame 131 is provided with a matching part 1311 matched with the lifting mechanism 12 on the side wall facing the partition plate 113, so that the support frame 131 can be driven by the lifting mechanism 12 to rise and fall; the battery replacement platform 13 further comprises a first layer plate 132 and a second layer plate 133 respectively located above the support frame 131 and movably connected with the support frame 131, and the first layer plate 132 is located above the second layer plate 133; the first layer plate 132 is provided with a battery positioning column 134 for positioning the battery pack on the battery replacement vehicle and an unlocking mechanism 135 for unlocking the battery pack; the second layer plate 133 is provided with a vehicle positioning column 136 for positioning the battery replacement vehicle, and the second layer plate 133 has an extension part 1331 extending out of the frame body 11 along the vertical walking direction, and the vehicle positioning column 136 is arranged on the extension part 1331 of the second layer plate 133;

[0472] The assembly method further comprises the following steps in the step of installing the lifting mechanism 12 and the battery replacement platform 13 in the frame body 11 to form the battery replacement module 1:

[0473] Connecting the second layer plate 133 to the support frame 131;

[0474] Connecting the first layer plate 132 to the support frame 131 and above the second layer plate 133.

[0475] By arranging the upper layer plate and the lower layer plate in the horizontal direction, the height difference between the upper layer plate and the lower layer plate can be further reduced, the compression and adjustability of the distance between the upper layer plate and the lower layer plate can be realized, and the height of the entire battery replacement module can be reduced, so that the height of the battery replacement equipment 100 is further compressed to meet the height requirements of heavy truck battery replacement for different vehicle chassis and the lowest height requirements on the vehicle chassis.

[0476] In the embodiment, the support frame 131 is provided with a guide mechanism 137 and a moving mechanism 138. The guide mechanism 137 includes guide rails 1371 perpendicular to the walking direction, two third sliding blocks 1372 and two fourth sliding blocks 1373 arranged on the guide rails 1371. The third sliding blocks 1372 are connected to the first layer plate 132, and the fourth sliding blocks 1373 are connected to the second layer plate 133. Along the locking and unlocking direction, the two third sliding blocks 1372 are arranged on the front side and the rear side of the two fourth sliding blocks 1373, respectively. The length of the second layer plate 133 along the extension direction of the guide rails 1371 is shorter than that of the first layer plate 132, or at least one end of the second layer plate 133 along the extension direction of the guide rails 1371 is provided with a avoiding area 1332 to facilitate the connection of the first layer plate 132 and the two third sliding blocks 1372. The moving mechanism 138 includes a first moving unit 1381 and a second moving unit 1382. The first moving unit 1381 is arranged on the support frame 131 and connected and driven to move the first layer plate 132 back and forth along the extension direction of the guide rails 1371. The second moving unit 1382 is arranged on the support frame 131 and connected and driven to move the second layer plate 133 back and forth along the extension direction of the guide rails 1371. The second layer plate 133 is provided with an avoiding groove 1333 for the connector of the first layer plate 132 to pass through and be connected with the first moving unit 1381.

[0477] The assembly method further includes the following steps in the step of installing the lifting mechanism 12 and the battery replacement platform 13 in the frame body 11 to form the battery replacement module 1:

[0478] The two third sliding blocks 1372 and the two fourth sliding blocks 1373 are installed on the guide rails 1371, and the fourth sliding blocks 1373 are connected to the second layer plate 133.

[0479] Along the locking and unlocking direction, the two third sliding blocks 1372 are arranged on the front side and the rear side of the two fourth sliding blocks 1373, respectively, and located in the avoiding area 1332 of the second layer plate 133 or on the front side and the rear side of the second layer plate 133, and the third sliding blocks 1372 are connected with the first layer plate 132.

[0480] The second moving unit 1382 is arranged on the support frame 131 and connected with the second layer plate 133.

[0481] The first moving unit 1381 is arranged on the support frame 131, and the connector of the first layer plate 132 passes through the avoiding groove of the second layer plate 133 and is connected with the first moving unit 1381.

[0482] The first layer plate 132 and the second layer plate 133 are simultaneously supported by the support frame 131, the second layer plate 133 is different in size from the first layer plate 132, or the second layer plate 133 is provided with the avoiding area 1332, so that the first layer plate 132 and the second layer plate 133 are respectively connected with the guide rails without interference, and the assembly efficiency is improved. Meanwhile, the avoiding groove 1333 is arranged on the second layer plate 133, so that the first layer plate 132 and the second layer plate 133 are respectively connected with the corresponding moving units without interference, the assembly efficiency is improved, and the structure after assembly is compact.

[0483] Embodiment 3

[0484] The embodiment provides a battery replacing device 100, which is basically the same as the battery replacing device 100 in Embodiment 1 in structure, and mainly differs in that the first walking frame 23 is provided with a stop assembly 8. Figures 19 to 22 The stop assembly 8 is arranged between the first walking frame 23 and the first connecting seat 26; the second walking frame 32 is provided with the stop assembly 8, and the stop assembly 8 is arranged between the second walking frame 32 and the second connecting seat 34; the stop assembly 8 has a locking state and an unlocking state, and is respectively used for locking or unlocking the relative rotation state between the first walking frame 23 and the first connecting seat 26 or the relative rotation state between the second walking frame 32 and the second connecting seat 34. The first connecting seat 26 can lock the relative position between the first walking frame 23 and the first connecting seat 26 when the battery replacing device 100 moves through the stop assembly 8, and then the rotation movement of the first walking wheel set 21 and the third walking wheel set 22 is avoided, the second connecting seat can lock the relative position between the second walking frame 32 and the second connecting seat 34 when the battery replacing device 100 moves through the stop assembly 8, and then the rotation movement of the second walking wheel set 31 is avoided, so that the battery replacing device 100 is more stable when moving and will not shake due to rotation. When the battery replacing device 100 needs to adjust the posture and align with the electric vehicle, the first connecting seat 26 and the second connecting seat 34 can move relative to the first walking frame 23 and the second walking frame 32 by unlocking the stop assembly 8, so that the battery replacing device 100 can be twisted to align with the battery replacing vehicle, and the battery is conveniently disassembled and assembled.

[0485] Specifically, in the embodiment, the first connecting seat 26 is also arranged between the first walking wheel set 21 and the first walking frame 23 in the first walking module 2, the first connecting seat 26 can adopt the same structure as the first connecting seat 26 in the second walking wheel set and the third walking wheel set, or, for example, Figure 23As shown, the first connecting seat 26 is a plate-shaped member, which is arranged to make the structure simpler without the need for sliding function of the first walking wheel set, and is convenient for processing and installation, and is conducive to making the first gap between the first connecting seat 26 and the first walking frame 23 smaller, and further conducive to reducing the size of the wedge-shaped block 81. The first connecting seat 26 connecting the third walking wheel set 22 in the first walking module 2 and the second connecting seat 34 connecting the second walking wheel set 31 in the second walking module 3 are both arranged as frame-shaped to facilitate the arrangement of the first and second sliding assemblies. In other optional embodiments, a plate-shaped member can also be arranged between the third walking wheel set 22 and the first walking frame 23 and between the second walking wheel set 31 and the second walking frame 32.

[0486] In this embodiment, the first connecting seat 26 has a first gap between the front and back sides thereof along the walking direction and the first walking frame 23, and the second connecting seat 34 has a second gap between the front and back sides thereof along the walking direction and the second walking frame 32; the stop assembly 8 includes a retractable wedge-shaped block 81, when the stop assembly 8 is in the locked state, the wedge-shaped block 81 extends from the original position into the first gap to limit the relative rotation between the first connecting seat 26 and the first walking frame 23, and / or the wedge-shaped block 81 extends from the original position into the second gap to limit the relative rotation between the second connecting seat 34 and the second walking frame 32, when the stop assembly 8 is in the unlocked state, the wedge-shaped block 81 retracts to the original position to release the first gap and the second gap. The first gap between the first connecting seat 26 and the first walking frame 23 and the second gap between the second connecting seat 34 and the second walking frame 32 can make them have the freedom of rotation, the stop assembly 8 is arranged at the front and back sides of the first connecting seat 26 and the second connecting seat 34, and the retractable wedge-shaped block 81 is used, the narrower end of which faces the first or second gap, in the locked state, the wedge-shaped block 81 extends and is clamped into the first gap or the second gap, so that the first connecting seat 26 and the first walking frame 23 and the second connecting seat 34 and the second walking frame 32 have no freedom of rotation and cannot rotate, and in the unlocked state, the wedge-shaped block 81 retracts to the original position to release the first gap or the second gap, so that the first connecting seat 26 can rotate relative to the first walking frame 23, and the second connecting seat 34 can rotate relative to the second walking frame 32. Specifically, in this embodiment, the stop assembly 8 further includes a pneumatic cylinder 82, which pushes and pulls the wedge-shaped block 81 to realize the extension and retraction movement of the wedge-shaped block 81. In other optional embodiments, the pneumatic cylinder can be replaced by other power members. In addition, in other embodiments, only the first gap can be arranged between the first connecting seat 26 and the first walking frame 23, or only the second gap can be arranged between the second connecting seat 34 and the second walking frame 32.

[0487] Embodiment 4

[0488] The embodiment provides an assembling method of the battery replacing device 100, which is suitable for the embodiment 3 and is basically the same as the method in the embodiment 2, and the difference mainly lies in the installation of the stop assembly 8, which is described in detail as follows:

[0489] In the embodiment, the first walking frame 23 is provided with the stop assembly 8, the stop assembly 8 is arranged between the first walking frame 23 and the first connecting seat 26, the second walking frame 32 is provided with the stop assembly 8, and the stop assembly 8 is arranged between the second walking frame 32 and the second connecting seat 34; the stop assembly 8 has a locking state and an unlocking state, and is respectively used for locking or unlocking the relative rotation state between the first walking frame 23 and the first connecting seat 26 or the relative rotation state between the second walking frame 32 and the second connecting seat 34;

[0490] The assembling method further includes the following steps in the step of installing the first walking wheel set and the third walking wheel set on the two sides of the first walking frame 23 along the walking direction:

[0491] The stop assembly 8 is installed between the first walking frame 23 and the first connecting seat 26;

[0492] The stop assembly 8 is installed between the second walking frame 32 and the second connecting seat 34.

[0493] The first connecting seat 26 or the second connecting seat 34 can lock the relative position between the first connecting seat 26 or the second connecting seat 34 and the first walking frame 23 or the second walking frame 32 when the battery replacing device 100 moves, and then the rotation movement is avoided, so that the battery replacing device 100 is more stable when moving and cannot shake due to the rotation. When the battery replacing device 100 needs to adjust the posture and align with the electric vehicle, the stop assembly 8 is unlocked, so that the first connecting seat 26 and the second connecting seat 34 can move relative to the first walking frame 23 and the second walking frame 32, so that the battery replacing device 100 can be twisted to align with the battery replacing vehicle, and the battery can be conveniently disassembled and assembled.

[0494] In the embodiment, the first connecting seat 26 has a first gap between the front and back sides along the walking direction and the first walking frame 23, and the second connecting seat 34 has a second gap between the front and back sides along the walking direction and the second walking frame 32; the stop assembly 8 includes a telescopic wedge-shaped block, when the stop assembly 8 is in the locking state, the wedge-shaped block extends from the original position to the first gap or the second gap to limit the relative rotation between the first connecting seat 26 and the first walking frame 23; at the same time, the wedge-shaped block extends from the original position to the second gap to limit the relative rotation between the second connecting seat 34 and the second walking frame 32, when the stop assembly 8 is in the unlocking state, the wedge-shaped block is retracted to the original position to release the first gap and the second gap;

[0495] The assembling method specifically comprises the following steps in the step of installing the stop assembly 8 between the first walking frame 23 and the first connecting seat 26:

[0496] The stop assembly 8 is installed at the first gap between the first connecting seat 26 and the first walking frame 23 respectively on the front and rear sides of the first connecting seat 26 along the walking direction;

[0497] The stop assembly 8 is installed at the second gap between the second connecting seat 34 and the second walking frame 32 respectively on the front and rear sides of the second connecting seat 34 along the walking direction.

[0498] The first gap between the first connecting seat 26 and the first walking frame 23 and the second gap between the second connecting seat 34 and the second walking frame 32 have the freedom of rotation, the stop assembly 8 is arranged on the front and rear sides of the first connecting seat 26 and the second connecting seat 34, and the stop assembly 8 is a retractable wedge-shaped block, the narrower end of which faces the first gap or the second gap, in the locked state, the wedge-shaped block is extended and clamped into the first gap or the second gap, so that the first connecting seat 26 and the first walking frame 23 and the second connecting seat 34 and the second walking frame 32 have no freedom of rotation and cannot rotate, and in the unlocked state, the wedge-shaped block is retracted to the original position, the first gap or the second gap is released, the first connecting seat 26 can rotate relative to the first walking frame 23, and the second connecting seat 34 can rotate relative to the second walking frame 32. In addition, in other embodiments, only the first gap between the first connecting seat 26 and the first walking frame 23 or only the second gap between the second connecting seat 34 and the second walking frame 32 can be arranged.

[0499] Although the specific embodiments of the present application are described above, those skilled in the art should understand that this is only an example, the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, and these changes and modifications all fall within the protection scope of the present application.

Claims

1. A battery replacement device capable of moving along a preset track to perform chassis battery replacement for a battery replacement vehicle, characterized in that, The battery replacing device comprises: The battery replacing module comprises a frame body, a lifting mechanism and a battery replacing platform, the frame body comprises two opposite cross beams and two opposite longitudinal beams, two partition plates parallel to the longitudinal beams and connected with the cross beams, the partition plates divide the frame body into a middle area and side areas symmetrically arranged on both sides of the middle area, the lifting mechanism is connected with the partition plates, the lifting mechanism is partially located in the side areas and partially located in the middle area, and the battery replacing platform is arranged in the middle area and connected with the lifting mechanism, so that the battery replacing platform can be lifted by the lifting mechanism to ascend and descend relative to the frame body to replace the battery for the battery replacing vehicle; The first walking module is connected to one side of the battery replacing module along a walking direction of the battery replacing device, and comprises at least one first walking wheel set rotatably connected; The second walking module is connected to the other side of the battery replacing module along the walking direction and opposite to the first walking module, and comprises at least two second walking wheel sets slidably connected; The battery replacing module can rotate in a horizontal plane about the first walking wheel set as a fulcrum to align with the battery of the battery replacing vehicle when the second walking wheel set is driven.

2. The battery replacement device according to claim 1, wherein The first walking module further comprises a third walking wheel set, and the first walking wheel set and the third walking wheel set are oppositely arranged on both sides of the battery replacing device parallel to the walking direction.

3. The battery replacement device according to claim 2, wherein The two second walking wheel sets are oppositely arranged on both sides of the battery replacing device parallel to the walking direction.

4. The battery replacement device according to claim 3, wherein One of the two second walking wheel sets is provided with a driving mechanism, and the second walking wheel set provided with the driving mechanism is located at a diagonal position with the first walking wheel set; and / or, the two second walking wheel sets are independently provided with driving mechanisms.

5. The battery replacement device according to claim 4, wherein The first walking module further comprises a first walking frame, and the second walking module further comprises a second walking frame, the first walking frame and the second walking frame are oppositely arranged on both sides of the battery replacing module perpendicular to the walking direction, the first walking wheel set and the third walking wheel set are respectively located on both sides of the first walking frame along the walking direction, and the two second walking wheel sets are respectively located on both sides of the second walking frame along the walking direction.

6. The battery replacement device according to claim 5, wherein The upper side and the lower side of the first walking wheel set are respectively connected with the first walking frame through first rotating assemblies, the first rotating assemblies comprise fixed parts and rotating parts rotatably connected with each other and capable of bearing radial force and axial force, one of the fixed parts and the rotating parts is connected with the first walking frame, and the other is connected with the upper side or the lower side of the first walking wheel set.

7. The battery replacement device according to claim 6, wherein The front side and the rear side of the third walking wheel set along the walking direction are respectively connected with the first walking frame through first sliding assemblies, the first sliding assemblies comprise first sliding rails and first sliding blocks matched with each other, one of the first sliding rails and the first sliding blocks is connected with the first walking frame, and the other is connected with the third walking wheel set, so that the third walking wheel set can slide relative to the first walking frame in a direction perpendicular to the walking direction. And / or, the front side and the rear side of the second walking wheel set along the walking direction are connected with the second walking frame through a second sliding assembly respectively, the second sliding assembly comprises a second sliding rail and a second sliding block matched with each other, one of the second sliding rail and the second sliding block is connected with the second walking frame, and the other is connected with the second walking wheel set, so that the second walking wheel set can slide relative to the second walking frame in a direction perpendicular to the walking direction. 8.The battery replacing device according to claim 7, wherein The first walking frame is further provided with a first connecting seat, the front side and the rear side of the third walking wheel set are connected with the first connecting seat through the first sliding assembly respectively, and the upper side and the lower side of the first connecting seat are connected with the first walking frame through a second rotating assembly respectively; and / or, the second walking frame is further provided with a second connecting seat, the front side and the rear side of the second walking wheel set are connected with the second connecting seat through the second sliding assembly respectively, and the upper side and the lower side of the second connecting seat are connected with the second walking frame through a second rotating assembly respectively.

9. The battery replacement device according to claim 8, wherein The second sliding assembly is provided with a locking mechanism having a locking state and an unlocking state, the locking mechanism can limit the relative sliding of the second sliding assembly when in the locking state, so that the second walking wheel set can drive the battery swapping equipment to walk along the preset track when being driven; the second sliding assembly can slide relative when the locking mechanism is in the unlocking state, so that the second walking wheel set can move a preset distance along the preset track when being driven, and the second walking wheel set can drive the battery swapping equipment to rotate in the horizontal plane with the first walking wheel set as the fulcrum, so as to realize the battery alignment of the battery swapping module and the battery swapping vehicle.

10. The battery replacement device according to claim 9, wherein The locking mechanism comprises a retractable locking rod, the locking rod extends from an original position and abuts against or inserts into the second sliding rail at a preset position to limit the relative movement of the second sliding rail and the second sliding block when the locking mechanism is in the locking state; and the locking rod is retracted to the original position when the locking mechanism is in the unlocking state.

11. The battery replacement device according to claim 10, wherein The extension direction of the locking rod is directed to the side surface of the second sliding rail, and the end shape of the locking rod is matched with the shape of the side surface of the second sliding rail or the second sliding rail is provided with a locking hole for the insertion of the locking rod; and / or, the locking rod has two, and the two locking rods are arranged on the upper and lower side surfaces of the second sliding rail respectively.

12. The battery replacement device according to claim 8, wherein The first walking frame is provided with a stop component, the stop component is arranged between the first walking frame and the first connecting seat, and / or, the second walking frame is provided with a stop component, the stop component is arranged between the second walking frame and the second connecting seat. The stop component has a locking state and an unlocking state, and is used for locking or unlocking the relative rotating state between the first walking frame and the first connecting seat or the relative rotating state between the second walking frame and the second connecting seat.

13. The battery replacement device according to claim 12, wherein The first connecting seat has a first gap between the front and rear sides along the walking direction and the first walking frame, and / or, the second connecting seat has a second gap between the front and rear sides along the walking direction and the second walking frame. The stop assembly comprises a retractable wedge-shaped block, when the stop assembly is in a locked state, the wedge-shaped block extends from an original position into the first gap to limit the relative rotation between the first connecting seat and the first walking frame; and / or, the wedge-shaped block extends from the original position into the second gap to limit the relative rotation between the second connecting seat and the second walking frame, when the stop assembly is in an unlocked state, the wedge-shaped block retracts to the original position to release the first gap and / or the second gap. 14.The battery replacing device according to claim 2, wherein The first walking wheel set, the second walking wheel set and the third walking wheel set each have a wheel capable of walking along the preset track, the wheel is a groove wheel with lower edges on both sides capable of cooperating with the preset track; or, the first walking wheel set, the second walking wheel set and the third walking wheel set are each connected with a walking retaining mechanism, the walking retaining mechanism is arranged across the preset track, so that the wheels of the first walking wheel set, the second walking wheel set and the third walking wheel set are limited to walk on the preset track.

15. The battery replacement device according to claim 14, wherein The walking retaining mechanism comprises a plurality of limiting portions arranged across both sides of the preset track and a mounting portion for mounting the limiting portions, the mounting portion is arranged across the preset track along the width direction of the preset track and connected with the plurality of limiting portions on both sides of the preset track, and the limiting portions are rotatably arranged so as to roll along the side wall of the preset track during walking of the battery replacing device along the preset track.

16. The battery replacement device according to claim 15, wherein The mounting portion comprises a mounting plate located above the preset track and an extension plate extending downward from both sides of the mounting plate to both sides of the preset track, the extension plate is used for connecting the limiting portions, and the mounting plate has a wheel accommodating area for accommodating the wheels of the battery replacing device, so that the wheels are fitted to the upper surface of the preset track and walk on the preset track.

17. The battery replacement device according to claim 5, wherein The battery replacing device further comprises an electrical element for controlling the movement of the first walking module, the second walking module and the battery replacing module. The electrical element is at least partially arranged in the first walking frame; and / or, The battery replacing device further comprises an electrical frame connected to the first walking frame, and the electrical element is partially arranged in the electrical frame. 18.The battery replacing device according to claim 1, wherein The number of lifting mechanisms is two, and the two lifting mechanisms are symmetrically arranged on both sides of the battery replacing platform along the walking direction.

19. The battery replacement device according to claim 18, wherein The lifting mechanism comprises: a driving assembly arranged on the side of the partition plate away from the battery replacing platform and located in the side portion area, for providing power for the lifting mechanism to lift the battery replacing platform; a lifting assembly arranged on the side of the partition plate close to the battery replacing platform and located in the middle area, connected with the battery replacing platform to drive the battery replacing platform to lift along the height direction of the frame body; a transmission assembly arranged through the partition plate, the transmission assembly being connected between the driving assembly and the lifting assembly so that the driving assembly can drive the lifting assembly to lift.

20. The battery replacing device of claim 19, wherein the transmission assembly comprises: A connecting part, one end of which is sleeved on the power output shaft of the driving assembly and the other end of which extends through the partition plate to the middle area; A transmission part, which is located in the middle area and is arranged on the partition plate, is connected to the other end of the connecting part and can be driven by the driving assembly to move back and forth along the vertical direction of the walking direction; The lifting assembly comprises: A lifting part, one end of which is connected to the transmission part and the other end of which is connected to the battery replacement platform, is driven by the transmission part to move back and forth along the vertical direction of the walking direction, so that the battery replacement platform can be lifted along the height direction relative to the frame body.

21. The battery replacement device according to claim 20, wherein The connecting part comprises: A positioning structure, which is sleeved on the power output shaft of the driving assembly and is threadedly connected with the power output shaft, so that the positioning structure is movable along the extension direction of the power output shaft; Two recesses, which are symmetrically arranged on both sides of the positioning structure along the movement direction of the positioning structure, accommodate the protrusions on the corresponding two sides of the positioning structure, and the protrusions extend away from the positioning structure and do not exceed the maximum thickness of the recesses; A limiting plate, which is located on the side of the connecting part close to the transmission part and is slidably connected with the partition plate along the movement direction of the positioning structure, one end of which is connected with the two recesses and the other end of which extends through the partition plate and is connected with the transmission part.

22. The battery replacement device according to claim 21, wherein In the movement direction of the positioning structure, at least one side of the protrusion is in clearance fit with the recess; and / or in the movement direction of the positioning structure, the side wall of the protrusion in contact with the recess is provided as a circular arc surface, and the circular arc surface has an axis direction along the extension direction of the protrusion.

23. The battery replacement device according to claim 21, wherein The transmission part comprises meshing gears and a rack, the rack is movably arranged on the partition plate, and the rack is fixedly engaged with the tooth block arranged on the other end of the limiting plate, so that the rack can be driven by the driving assembly to move back and forth along the vertical direction of the walking direction; during the movement of the rack to drive the gear to rotate, the lifting part drives the battery replacement platform to lift along with the rotation of the gear.

24. The battery replacement device according to claim 23, wherein, The number of gears is two, the two gears are arranged along the extension direction of the rack and are located at the two ends of the rack and coaxially arranged with the lifting part.

25. The battery replacement device according to claim 19, wherein, The lifting mechanism further comprises: A guide part, which has at least two guide parts arranged on the periphery of the battery replacement platform along the length direction and / or the width direction of the frame body to guide the lifting of the battery replacement platform.

26. The battery replacement device according to claim 25, wherein The guide part comprises a first connecting rod and a second connecting rod which are hingedly connected to each other; One end of the first connecting rod is rotatably connected to the frame body, and the other end of the first connecting rod is slidably connected to the battery replacement platform; One end of the second connecting rod is slidably connected to the battery replacement platform, and the other end of the second connecting rod is rotatably connected to the frame body, so that the guide part can be unfolded or folded along with the lifting of the battery replacement platform to guide the lifting of the battery replacement platform along the height direction.

27. The battery replacement device according to claim 1, wherein The battery replacement platform comprises: A support frame is located at the bottom of the battery swap platform, and the support frame is provided with a matching part on the side wall facing the partition plate, which matches the lifting mechanism, so that the support frame can be driven to rise and fall by the lifting mechanism. A first layer plate and a second layer plate are respectively located above the support frame and are movably connected with the support frame, and the first layer plate is located above the second layer plate. The first layer plate is provided with a battery positioning column for positioning the battery pack on the battery swap vehicle and an unlocking mechanism for unlocking the battery pack. The second layer plate is provided with a vehicle positioning column for positioning the battery swap vehicle, and the second layer plate has an extension part extending out of the frame body along a direction perpendicular to the walking direction, and the vehicle positioning column is arranged on the extension part of the second layer plate.

28. The battery replacement device according to claim 27, wherein, The support frame is provided with a guide mechanism and a moving mechanism, the guide mechanism includes a guide rail perpendicular to the walking direction and two third sliders and two fourth sliders arranged on the guide rail, the third sliders are connected to the first layer plate, the fourth sliders are connected to the second layer plate, and along the unlocking direction, the two third sliders are respectively arranged on the front side and the rear side of the two fourth sliders. The length of the second layer plate along the extension direction of the guide rail is shorter than that of the first layer plate, or at least one end of the second layer plate along the extension direction of the guide rail is provided with a avoiding area to facilitate the connection of the first layer plate and the two third sliders. The moving mechanism includes: A first moving unit is arranged on the support frame and connected and drives the first layer plate to move back and forth along the extension direction of the guide rail; A second moving unit is arranged on the support frame and connected and drives the second layer plate to move back and forth along the extension direction of the guide rail; The second layer plate is provided with an avoiding groove for the connecting piece of the first layer plate to pass through and connect with the first moving unit.

29. The battery replacement device of claim 27, wherein, The cross beam includes a first area corresponding to the extension part and a second area located on both sides of the extension part, the height of the first area is lower than that of the second area, so that when the battery swap platform is not lifted, the first layer plate is lower than the second area.

30. An assembling method of a battery replacing device, characterized by, The assembly method is suitable for the battery swap equipment according to any one of claims 1-29, and the assembly method comprises the following steps: The lifting mechanism and the battery swap platform are installed in the frame body to form a battery swap module; The first walking wheel set is assembled to form a first walking module; The second walking wheel set is assembled to form a second walking module; The first walking module and the second walking module are respectively installed on both sides of the battery swap module along the walking direction to form the battery swap equipment.

31. The battery replacement device assembly method according to claim 30, wherein The steps of installing the lifting mechanism and the battery swap platform in the frame body to form a battery swap module, assembling the first walking wheel set to form a first walking module, and assembling the second walking wheel set to form a second walking module are implemented simultaneously. 32.The method of Claim 30, wherein The frame body comprises two opposite cross beams and two opposite longitudinal beams, and two partition plates parallel to the longitudinal beams and connected with the cross beams, the partition plates divide the frame body into a middle area and side areas symmetrically arranged on both sides of the middle area, the lifting mechanism is connected with the partition plates, the lifting mechanism is partially located in the side areas and partially located in the middle area, and the battery replacing platform is arranged in the middle area and connected with the lifting mechanism, so that the battery replacing platform can be lifted by the lifting mechanism to ascend and descend relative to the frame body to replace the battery for the battery replacing vehicle; The assembly method comprises the following steps in the step of installing the lifting mechanism and the battery replacing platform in the frame body to form the battery replacing module: The two cross beams and the two longitudinal beams are oppositely arranged and connected; The two partition plates are arranged parallel to the longitudinal beams and connected with the cross beams; The lifting mechanism is connected with the partition plates; The battery replacing platform is arranged in the middle area and connected with the lifting mechanism. 33.The method of Claim 30, wherein The first walking module further comprises a third walking wheel set, and the first walking wheel set and the third walking wheel set are oppositely arranged on both sides of the battery replacing equipment parallel to the walking direction; The assembly method comprises the following steps in the step of assembling the first walking wheel set to form the first walking module: The third walking wheel set of the first walking module is installed on one side of the battery replacing equipment parallel to the walking direction and opposite to the first walking wheel set. 34.The method of Claim 33, wherein The two second walking wheel sets are oppositely arranged on both sides of the battery replacing equipment parallel to the walking direction; The assembly method comprises the following steps in the step of assembling the second walking wheel set to form the second walking module: The two second walking wheel sets are oppositely arranged on both sides of the battery replacing equipment parallel to the walking direction. 35.The method of Claim 34, wherein One of the two second walking wheel sets is provided with a driving mechanism, and the second walking wheel set provided with the driving mechanism is diagonally located relative to the first walking wheel set; and / or, the two second walking wheel sets are independently provided with driving mechanisms; The assembly method comprises the following steps in the step of assembling the second walking wheel set to form the second walking module: The driving mechanism is installed in the second walking wheel set diagonally located relative to the first walking wheel set; and / or, the driving mechanism is independently installed in the two second walking wheel sets. 36.The method of Claim 35, wherein The first walking module further comprises a first walking frame, and the second walking module further comprises a second walking frame, the first walking frame and the second walking frame are oppositely arranged on both sides of the battery replacing module perpendicular to the walking direction, the first walking wheel set and the third walking wheel set are respectively located on both sides of the first walking frame along the walking direction, and the two second walking wheel sets are respectively located on both sides of the second walking frame along the walking direction; The assembly method further comprises the following steps in the step of assembling the first walking wheel set to form the first walking module: The first walking wheel set and the third walking wheel set are respectively installed on both sides of the first walking frame along the walking direction. The first walking frame is connected to one side of the battery swap module perpendicular to the walking direction; And, the assembly method further comprises the following steps in the step of assembling the second walking wheel set to form the second walking module: Two second walking wheel sets are respectively installed on two sides of the second walking frame along the walking direction; The second walking frame is connected to the other side of the battery swap module perpendicular to the walking direction.

37. The battery replacement device assembly method according to claim 36, wherein The upper and lower parts of the first walking wheel set are respectively connected to the first walking frame through first rotating assemblies, the first rotating assembly comprises a fixed part and a rotating part which are connected to each other and can bear radial force and axial force, one of the fixed part and the rotating part is connected to the first walking frame, and the other is connected to the upper or lower part of the first walking wheel set; The assembly method further comprises the following steps in the step of respectively installing the first walking wheel set and the third walking wheel set on two sides of the first walking frame along the walking direction: The first rotating assembly is respectively installed on the upper and lower parts of the first walking wheel set; One of the fixed part and the rotating part of the first rotating assembly is connected to the first walking wheel set; The other of the fixed part and the rotating part of the first rotating assembly is connected to the first walking frame. 38.The method of Claim 37, wherein The front side and the back side of the third walking wheel set along the walking direction are respectively connected to the first walking frame through first sliding assemblies, the first sliding assembly comprises a first sliding rail and a first sliding block which cooperate with each other, one of the first sliding rail and the first sliding block is connected to the first walking frame, and the other is connected to the third walking wheel set, so that the third walking wheel set can slide relative to the first walking frame in a direction perpendicular to the walking direction; And / or, the front side and the back side of the second walking wheel set along the walking direction are respectively connected to the second walking frame through second sliding assemblies, the second sliding assembly comprises a second sliding rail and a second sliding block which cooperate with each other, one of the second sliding rail and the second sliding block is connected to the second walking frame, and the other is connected to the second walking wheel set, so that the second walking wheel set can slide relative to the second walking frame in a direction perpendicular to the walking direction; The assembly method further comprises the following steps in the step of respectively installing the first walking wheel set and the third walking wheel set on two sides of the first walking frame along the walking direction: The first sliding assembly is respectively installed on the front side and the back side of the third walking wheel set along the walking direction; One of the first sliding rail and the first sliding block of the first sliding assembly is connected to the first walking frame, and the other is connected to the third walking wheel set; The assembly method further comprises the following steps in the step of respectively installing two second walking wheel sets on two sides of the second walking frame along the walking direction: The second sliding assembly is respectively installed on the front side and the back side of the second walking wheel set along the walking direction; The second slide rail of the second sliding assembly is connected with one of the second sliders and the second walking frame, and the other is connected with the second walking wheel set. 39.The method of Claim 38, wherein The first walking frame is further provided with a first connecting seat, the front side and the rear side of the third walking wheel set are connected with the first connecting seat through the first sliding assembly respectively, and the upper side and the lower side of the first connecting seat are connected with the first walking frame through a second rotating assembly respectively; and / or, the second walking frame is further provided with a second connecting seat, the front side and the rear side of the second walking wheel set are connected with the second connecting seat through the second sliding assembly respectively, and the upper side and the lower side of the second connecting seat are connected with the second walking frame through a second rotating assembly respectively. The assembly method further comprises the following steps in the step of installing the first walking wheel set and the third walking wheel set on the two sides of the first walking frame along the walking direction respectively: The first sliding assembly of the front side and the rear side of the third walking wheel set is connected with the first connecting seat respectively; The first connecting seat is connected with the first walking frame by installing the second rotating assembly above and below the first connecting seat; and / or, The assembly method further comprises the following steps in the step of installing the two second walking wheel sets on the two sides of the second walking frame along the walking direction respectively: The second sliding assembly of the front side and the rear side of the second walking wheel set is connected with the second connecting seat respectively; The second connecting seat is connected with the second walking frame by installing the second rotating assembly above and below the second connecting seat.

40. The battery replacement device assembly method according to claim 39, wherein The second sliding assembly is provided with a locking mechanism having a locking state and an unlocking state, when the locking mechanism is in the locking state, the relative sliding of the second sliding assembly can be limited, so that when the second walking wheel set is driven, the battery swap equipment can be driven to walk along the preset track; when the locking mechanism is in the unlocking state, the second sliding assembly can slide relatively, so that when the second walking wheel set is driven, the second walking wheel set moves a preset distance along the preset track, and the battery swap equipment can be driven to rotate in the horizontal plane with the first walking wheel set as the fulcrum, so as to realize the battery alignment of the battery swap module and the battery swap vehicle; The assembly method further comprises the following steps in the step of installing the two second walking wheel sets on the two sides of the second walking frame along the walking direction respectively: The locking mechanism is installed in the second sliding assembly, so that when the locking mechanism is in the locking state, the relative sliding of the second sliding assembly can be limited; when the locking mechanism is in the unlocking state, the second sliding assembly can slide relatively.

41. The battery replacement device assembly method according to claim 40, wherein The locking mechanism comprises a telescopic locking rod, when the locking mechanism is in the locking state, the locking rod extends from the original position and abuts against or inserts into the second slide rail at a preset position to limit the relative movement of the second slide rail and the second slider; when the locking mechanism is in the unlocking state, the locking rod is retracted to the original position; The assembly method further comprises the following steps in the step of installing the locking mechanism in the second sliding assembly: The locking mechanism is installed in the second sliding assembly, so that when the locking mechanism is in the locking state, the relative sliding of the second sliding assembly can be limited; when the locking mechanism is in the unlocking state, the second sliding assembly can slide relatively. The locking rod is installed in the locking mechanism, so that when the locking mechanism is in the locked state, the locking rod extends from the original position and abuts or inserts into the second slide rail at a preset position to limit the relative movement of the second slide rail and the second slider; when the locking mechanism is in the unlocked state, the locking rod is retracted to the original position.

42. The battery replacement device assembly method according to claim 41, wherein The extension direction of the locking rod is directed to the side surface of the second slide rail, and the end shape of the locking rod is matched with the shape of the side surface of the second slide rail or the second slide rail is provided with a locking hole for the insertion of the locking rod; and / or the locking rod has two locking rods, and the two locking rods are respectively arranged on the upper and lower side surfaces of the second slide rail; The assembly method further comprises the following steps in the step of installing the locking rod in the locking mechanism: The extension direction of the locking rod is directed to the side surface of the second slide rail; and / or the locking rod is installed on the upper and lower side surfaces of the second slide rail, respectively. 43.The method of Claim 39, wherein The first walking frame is provided with a stop component, and the stop component is arranged between the first walking frame and the first connecting seat; and / or the second walking frame is provided with a stop component, and the stop component is arranged between the second walking frame and the second connecting seat; the stop component has a locked state and an unlocked state, and is used for locking or unlocking the relative rotation state between the first walking frame and the first connecting seat or the relative rotation state between the second walking frame and the second connecting seat, respectively; The assembly method further comprises the following steps in the step of installing the first walking wheel set and the third walking wheel set on both sides of the first walking frame along the walking direction: The stop component is installed between the first walking frame and the first connecting seat; and / or, The stop component is installed between the second walking frame and the second connecting seat. 44.The method of Claim 43, wherein The first connecting seat has a first gap between the front and back sides along the walking direction and the first walking frame, and / or the second connecting seat has a second gap between the front and back sides along the walking direction and the second walking frame; the stop component comprises a wedge-shaped block which is extendable, when the stop component is in the locked state, the wedge-shaped block extends from the original position into the first gap to limit the relative rotation between the first connecting seat and the first walking frame; and / or the wedge-shaped block extends from the original position into the second gap to limit the relative rotation between the second connecting seat and the second walking frame, when the stop component is in the unlocked state, the wedge-shaped block is retracted to the original position to release the first gap and / or the second gap; The assembly method specifically comprises the following steps in the step of installing the stop component between the first walking frame and the first connecting seat: The stop component is installed in the first gap between the first connecting seat and the first walking frame on both sides along the walking direction, respectively; And / or the assembly method further comprises the following steps in the step of installing the stop component between the second walking frame and the second connecting seat: The stop component is installed in the second gap between the second connecting seat and the second walking frame on both sides along the walking direction, respectively. The stop assembly is installed at a second gap between the second connecting seat and the second walking frame on the front and back sides of the walking direction, respectively. 45.The method of Claim 33, wherein The first walking wheel set, the second walking wheel set and the third walking wheel set each have wheels capable of walking along a preset track, and the wheels are groove wheels with lower edges on both sides capable of cooperating with the preset track; the assembly method includes the following steps in the steps of assembling the first walking wheel set to form a first walking module and assembling the second walking wheel set to form a second walking module: The wheels are installed in the first walking wheel set, the second walking wheel set and the third walking wheel set; The wheels are engaged with the preset track; Alternatively, the first walking wheel set, the second walking wheel set and the third walking wheel set are each connected with a walking retaining mechanism, and the walking retaining mechanism is arranged across the preset track, so that the wheels of the first walking wheel set, the second walking wheel set and the third walking wheel set are limited to walk on the preset track; The assembly method includes the following steps in the steps of assembling the first walking wheel set to form a first walking module and assembling the second walking wheel set to form a second walking module: The wheels are installed in the first walking wheel set, the second walking wheel set and the third walking wheel set; The first walking wheel set, the second walking wheel set and the third walking wheel set are respectively connected with a walking retaining mechanism; The walking retaining mechanism is arranged across the preset track. 46.The method of Claim 45, wherein The walking retaining mechanism includes a plurality of limiting parts arranged across both sides of the preset track and a mounting part for mounting the limiting parts, the mounting part is arranged across the preset track along the width direction of the preset track and connected with a plurality of the limiting parts on both sides of the preset track, and the limiting parts are rotatably arranged so as to roll along the side wall of the preset track during walking of the battery replacement equipment along the preset track; The assembly method further includes the following steps in the step of arranging the walking retaining mechanism across the preset track: The mounting part is arranged across the preset track along the width direction of the preset track and connected with a plurality of the limiting parts on both sides of the preset track; The limiting parts are rotatably mounted on the side wall of the preset track.

47. The battery replacement device assembly method according to claim 46, wherein The mounting part includes a mounting plate located above the preset track and an extension plate extending downward from both sides of the mounting plate to both sides of the preset track, and the extension plate is used to connect the limiting parts, and the mounting plate has a wheel accommodating area for accommodating the wheels of the battery replacement equipment, so that the wheels are fitted with the upper surface of the preset track and walk on the preset track; The assembly method further includes the following steps in the step of arranging the walking retaining mechanism across the preset track: The mounting plate is connected with the first walking wheel set, the second walking wheel set or the third walking wheel set; The extension plate is connected with the limiting parts. 48.The method of Claim 36, wherein The battery replacing device further comprises electrical elements for controlling the movement of the first walking module, the second walking module and the battery replacing module; the electrical elements are at least partially arranged in the first walking frame; and / or, the battery replacing device further comprises an electrical frame connected to the first walking frame, and part of the electrical elements are arranged in the electrical frame; The assembling method further comprises the following steps after the step of assembling the first walking wheel set to form the first walking module: installing at least part of the electrical elements in the first walking frame; and / or, connecting the electrical frame to the first walking frame, and installing part of the electrical elements in the electrical frame. 49.The method of Claim 30, wherein The number of lifting mechanisms is two, and the two lifting mechanisms are symmetrically arranged on both sides of the battery replacing platform along the walking direction; The assembling method further comprises the following steps in the step of installing the lifting mechanism and the battery replacing platform in the frame body to form the battery replacing module: symmetrically installing the two lifting mechanisms on both sides of the battery replacing platform along the walking direction. 50.The method of Claim 49, wherein The lifting mechanism comprises: a driving assembly arranged on the side of the partition plate away from the battery replacing platform and located in the side portion area, for providing power for the lifting mechanism to lift the battery replacing platform; a lifting assembly arranged on the side of the partition plate close to the battery replacing platform and located in the middle area, connected to the battery replacing platform to drive the battery replacing platform to lift along the height direction of the frame body; a transmission assembly arranged through the partition plate, connected between the driving assembly and the lifting assembly so that the driving assembly can drive the lifting assembly to lift; The assembling method further comprises the following steps in the step of installing the lifting mechanism and the battery replacing platform in the frame body to form the battery replacing module: installing the driving assembly on the side of the partition plate away from the battery replacing platform and located in the side portion area; installing the lifting assembly on the side of the partition plate close to the battery replacing platform and located in the middle area, and connecting it to the battery replacing platform; installing the transmission assembly through the partition plate, and connecting it between the driving assembly and the lifting assembly.

51. The assembling method of the battery replacing device according to claim 50, wherein, The transmission assembly comprises: a connecting portion, one end of which is sleeved on the power output shaft of the driving assembly, and the other end extends through the partition plate to the middle area; a transmission portion located in the middle area and arranged on the partition plate, connected to the other end of the connecting portion so as to be driven by the driving assembly to move back and forth along the vertical walking direction; The lifting assembly comprises: a lifting piece, one end of which is connected to the transmission portion, and the other end is connected to the battery replacing platform, and the transmission portion drives the lifting piece during the back and forth movement along the vertical walking direction so that the battery replacing platform can lift along the height direction relative to the frame body; The assembling method further comprises the following steps in the step of installing the lifting mechanism and the battery replacing platform in the frame body to form the battery replacing module: One end of the connecting part is sleeved on the power output shaft of the driving assembly, and the other end extends through the partition plate to the middle area; The transmission part is installed in the middle area and arranged on the partition plate, and connected with the other end of the connecting part; One end of the lifting part is connected with the transmission part, and the other end is connected with the battery replacement platform. 52.The battery replacement device assembling method of claim 51, wherein, The connecting part comprises: The positioning structure is sleeved on the power output shaft of the driving assembly and is threadedly connected with the power output shaft, so that the positioning structure is movable along the extension direction of the power output shaft; Two recesses are symmetrically arranged on both sides of the positioning structure along the movement direction of the positioning structure, and accommodate the protrusions on the corresponding sides of the positioning structure, and the protrusions extend away from the positioning structure and do not exceed the maximum thickness of the recesses; The limiting plate is located on one side of the connecting part close to the transmission part and is slidably connected with the partition plate along the movement direction of the positioning structure, one end of the limiting plate is connected with the two recesses, and the other end of the limiting plate is connected with the transmission part through the partition plate; The assembly method comprises the following steps in the step of sleeving one end of the connecting part on the power output shaft of the driving assembly and extending the other end through the partition plate to the middle area: The positioning structure is sleeved on the power output shaft of the driving assembly and is threadedly connected with the power output shaft; The two recesses are symmetrically arranged on both sides of the positioning structure and are gap-fitted between the protrusions on the corresponding sides of the positioning structure; The limiting plate is slidably installed on the partition plate and located on one side of the connecting part close to the transmission part, and one end of the limiting plate is connected with the two recesses, and the other end of the limiting plate is connected with the transmission part through the partition plate. 53.The method of Claim 52, wherein The transmission part comprises meshing gears and a rack, the rack is movably arranged on the partition plate, and the rack is fixedly engaged with the tooth block arranged on the other end of the limiting plate, so that the rack can be driven by the driving assembly to move back and forth along the vertical walking direction; during the movement of the rack to drive the gear to rotate, the lifting part drives the battery replacement platform to lift along with the rotation of the gear; The assembly method comprises the following steps in the step of arranging the transmission part in the middle area and installing it on the partition plate, and connecting it with the other end of the connecting part: The rack is movably installed on the partition plate, the tooth block is installed on the other end of the limiting plate, and the tooth block is fixedly engaged with the rack; The gear is installed on the lifting part, and the gear is engaged with the rack. 54.The battery replacement device assembling method of claim 53, wherein, The number of gears is two, the two gears are arranged along the extension direction of the rack and located at both ends of the rack, and coaxially arranged with the lifting part; The assembly method further comprises the following steps in the step of engaging the gear with the rack and connecting it with the lifting part: The two gears are coaxially installed with the lifting part respectively; The two gears are arranged at both ends along the extension direction of the rack and engaged with the rack. 55.The method of Claim 54, wherein The lifting mechanism further comprises: a guide, at least two of which are arranged on the periphery of the battery replacement platform along the length and / or width direction of the frame body to guide the lifting of the battery replacement platform; The assembly method further comprises the following steps in the step of installing the lifting mechanism and the battery replacement platform in the frame body to form a battery replacement module: The guide is installed on the periphery of the battery replacement platform along the length and / or width direction of the frame body. 56.The battery replacement device assembling method of claim 55, wherein, The guide comprises a first connecting rod and a second connecting rod hinged to each other; One end of the first connecting rod is rotatably connected to the frame body, and the other end is slidably connected to the battery replacement platform; One end of the second connecting rod is slidably connected to the battery replacement platform, and the other end is rotatably connected to the frame body, so that the guide can be unfolded or folded with the battery replacement platform during lifting to guide the lifting of the battery replacement platform in the height direction; The assembly method further comprises the following steps in the step of arranging the guide on the periphery of the battery replacement platform along the length and / or width direction of the frame body: The first connecting rod is hinged to the second connecting rod; One end of the first connecting rod is rotatably connected to the frame body, and the other end is slidably connected to the battery replacement platform; One end of the second connecting rod is slidably connected to the battery replacement platform, and the other end is rotatably connected to the frame body. 57.The method of Claim 30, wherein The battery replacement platform comprises: a support frame located at the bottom of the battery replacement platform, the support frame being provided with a matching part on the side wall facing the partition plate to match the lifting mechanism, so that the support frame can be driven by the lifting mechanism to lift; and a first layer plate and a second layer plate respectively located above the support frame and movably connected with the support frame, the first layer plate being located above the second layer plate; The first layer plate is provided with a battery positioning column for positioning with the battery pack on the battery replacement vehicle and an unlocking mechanism for unlocking the battery pack; The second layer plate is provided with a vehicle positioning column for positioning with the battery replacement vehicle; the second layer plate has an extension part extending out of the frame body along the vertical direction of the walking direction, and the vehicle positioning column is arranged on the extension part of the second layer plate; The assembly method further comprises the following steps in the step of installing the lifting mechanism and the battery replacement platform in the frame body to form a battery replacement module: The second layer plate is connected to the support frame; The first layer plate is connected to the support frame and located above the second layer plate.

58. The assembly method of the battery replacement equipment according to claim 57, wherein The support frame is provided with a guide mechanism and a moving mechanism, the guide mechanism comprising a guide rail perpendicular to the walking direction and two third sliders and two fourth sliders arranged on the guide rail, the third sliders being connected to the first layer plate, the fourth sliders being connected to the second layer plate, and along the unlocking direction, the two third sliders are arranged on the front side and the rear side of the two fourth sliders respectively; The length of the second layer plate along the extension direction of the guide rail is shorter than that of the first layer plate, or at least one end of the second layer plate along the extension direction of the guide rail is provided with a avoiding area to facilitate the connection of the first layer plate and the two third sliders, The moving mechanism comprises: A first moving unit is arranged on the support frame and connected and drives the first layer plate to reciprocate along the extension direction of the guide rail; A second moving unit is arranged on the support frame and connected and drives the second layer plate to reciprocate along the extension direction of the guide rail; The second layer plate is provided with an avoiding groove for the connector of the first layer plate to pass through and be connected with the first moving unit; The assembly method further comprises the following steps in the step of installing the lifting mechanism and the battery replacement platform in the frame body to form a battery replacement module: Two third sliders and two fourth sliders are installed on the guide rail, and along the locking and unlocking direction, the two third sliders are respectively installed on the front side and the rear side of the two fourth sliders and located at the avoiding area of the second layer plate or on the front side and the rear side of the second layer plate, and the third sliders are connected with the first layer plate; The second moving unit is arranged on the support frame and connected with the second layer plate; The first moving unit is arranged on the support frame and the connector of the first layer plate is connected with the first moving unit through the avoiding groove of the second layer plate.

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