Quick-change device with rotation adjustment angle and battery changing trolley

Abstract

The application provides a quick-change device with a rotating adjustment angle and a battery changing trolley, which comprises a support platform, a battery mounting part for placing and moving a vehicle battery pack, a rotating platform, the battery mounting part being mounted on the rotating platform, the rotating platform being arranged on the support platform and being capable of rotating in a horizontal plane relative to the support platform, and a driving mechanism mounted on the support platform and used for driving the rotating platform to rotate. During the battery changing process, when the positions of the battery changing vehicle and the quick-change device need to be adjusted due to errors, the driving mechanism drives the rotating platform to rotate by a certain angle, so as to finely adjust the angle of the battery changing device, so that the positions between the battery changing device and the vehicle meet the battery changing requirements, thereby reducing the requirements on the parking position of the battery changing vehicle, meeting the battery changing requirements of different vehicles, improving the battery changing efficiency, and improving the adaptability of the battery changing device.

Description

Technical Field

[0001] This invention relates to the field of battery swapping equipment, and in particular to a quick-swap device with a rotating adjustment angle. Background Technology

[0002] Currently, battery swapping equipment adopts the RGV (Remote Mounted Vehicle) form, where the equipment moves along a track or is fixed at a specific swapping location. This form places high demands on the relative position of the electric vehicle and the swapping equipment. The electric vehicle must be aligned with the swapping equipment to ensure that the swapping platform and the vehicle's battery pack or battery pack mounting section are aligned. This requires adjusting the parking angle of the electric vehicle, making the swapping operation inconvenient. Furthermore, for heavy or large vehicles, due to their longer length or heavier load, controlling the vehicle's parking precision is even more difficult, further increasing the complexity of the swapping operation. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a quick-change device and a battery swapping trolley with a rotation adjustment angle.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution: a quick-change device with a rotational adjustment angle, comprising:

[0005] Support platform;

[0006] A battery mounting section, which is used to place a vehicle battery pack and move the vehicle battery pack.

[0007] The quick-change device also includes:

[0008] A rotating platform, wherein the battery mounting part is mounted on the rotating platform, and the rotating platform is disposed on the support platform and can rotate relative to the support platform in a horizontal plane;

[0009] A drive mechanism is mounted on the support platform and is used to drive the rotating platform to rotate.

[0010] In this solution, during the battery swapping process, when there is an error in the position between the battery swapping vehicle and the fast-swapping equipment and adjustments are needed, the drive mechanism drives the rotating platform to rotate by a certain angle, thereby fine-tuning the angle of the battery swapping equipment. This ensures that the position between the battery swapping equipment and the vehicle meets the battery swapping requirements, thereby reducing the requirements for the parking position of the battery swapping vehicle, meeting the battery swapping needs of different vehicles, achieving high battery swapping efficiency, and improving the adaptability of the battery swapping equipment.

[0011] Preferably, the quick-change device further includes a universal joint, which includes a first end and a second end that are rotatable relative to each other. The first end is fixed on the rotating platform, and the second end is drively connected to the thrust output end of the drive mechanism.

[0012] In this solution, variable-angle power transmission is achieved through a universal joint, which facilitates the use of linear motion at the output end to drive the rotating platform to perform rotational movements.

[0013] Preferably, the first end and the second end are set at an angle on the horizontal plane. The first end is provided with a horizontal channel on the side of the support platform. The second end passes through the channel and leaves a gap between it and the two side walls of the channel. The thrust direction of the thrust output end is set at an angle with the extension direction of the channel. The angle is an acute angle of rotation about the channel direction towards the outside of the support platform.

[0014] In this design, the structure facilitates the transmission of thrust between the first and second ends. By using the gap with the channel sidewall and the included angle of rotation outward, the possibility of the first and second ends getting stuck during the transmission of thrust is reduced. The channel in this invention can be a through groove, through which the universal joint structure is fixed, maintaining the stability of the connection structure.

[0015] Preferably, the drive mechanism includes two lead screw electric actuators and two motors. The two motors are respectively disposed on both sides of the support platform. The rotating end of the lead screw electric actuator is connected to the output shaft of the motor, and the telescopic end of the lead screw electric actuator forms the thrust output end of the drive mechanism.

[0016] In this solution, the lead screw electric actuator converts the rotational motion of the motor into linear motion at the output end, which meets the power transmission requirements of the universal joint. Moreover, the lead screw electric actuator has high power transmission accuracy and low frictional resistance.

[0017] Preferably, the drive mechanism is disposed on the side of the support platform and located on at least one side of the quick-change device along the walking direction.

[0018] In this design, the drive mechanism is placed at both ends of the walking direction, thus avoiding occupying the space of the walking drive mechanism. Instead, the drive mechanism is placed on one side along the walking direction and located on the side of the support platform, making the overall structure of the quick-change device more compact.

[0019] Preferably, the number of drive mechanisms is at least two and is an even number, and the drive mechanisms are evenly arranged on both sides of the quick-change device along the walking direction.

[0020] In this solution, multiple drive mechanisms can drive the rotating platform to rotate more stably, and the drive mechanisms are evenly distributed on both sides of the travel direction, which can avoid the error in rotation angle caused by the power difference on both sides of the rotating platform.

[0021] Preferably, the drive mechanism is rotationally symmetrically distributed along the rotating platform.

[0022] In this design, the forces on both sides of the rotating platform are more evenly distributed, which facilitates the drive mechanism to drive the rotating platform to rotate smoothly and achieves high transmission efficiency.

[0023] Preferably, the rotating platform includes a mounting platform that protrudes horizontally from the support platform, and the first end is fixed to the mounting platform.

[0024] In this design, since the mounting platform protrudes from the support platform, the drive mechanism drives the rotating platform to rotate through the mounting part, which can avoid interference between the drive mechanism and the support platform.

[0025] Preferably, the support platform further includes a rotating shaft, which is disposed toward the rotating platform, and the rotating platform is mounted on the rotating shaft and rotatably connected relative to the rotating shaft.

[0026] In this solution, the rotating shaft can center-limit the rotating platform. By constraining the degrees of freedom of the rotating platform, the rotation accuracy of the rotating platform can be improved, thus achieving precise battery swapping.

[0027] Preferably, the rotation axis is located at the center of the rotation platform.

[0028] In this design, the rotating platform is better subjected to force, resulting in high transmission efficiency.

[0029] Preferably, the support platform further includes a bearing, and the rotating platform is rotatably connected to the rotating shaft via the bearing.

[0030] In this design, the rotating platform is rotatably connected to the support platform via bearings. The bearings reduce friction and improve the flexibility and accuracy of the rotation angle of the rotating platform.

[0031] Preferably, the rotating platform includes a rotating body and a fixed plate, the fixed plate being located at the center of the rotating body and detachably connected to the rotating body, and the fixed plate being rotatably connected to the rotating shaft.

[0032] In this design, the rotating platform is set up in two separate parts. The rotating body is connected to the rotating shaft through a fixed plate. The torque on the rotating platform and the friction with the rotating shaft are mainly borne by the fixed plate. The center of the rotating platform is prone to damage. Compared with an integrated design, this structure only requires the replacement of the fixed plate, without replacing the entire rotating platform, which facilitates the maintenance of the rotating platform.

[0033] Preferably, the support platform includes a frame, and two lifting cams are provided at both ends of both sides of the battery mounting part. The lifting cams are mounted on the frame and are used to lift or lower the support platform. The drive mechanism is located between the two lifting cams on one side, or there are two or more drive mechanisms, with a drive mechanism provided between the two lifting cams on each side.

[0034] In this design, the lifting cams can lift or lower the entire support platform, enabling the battery swapping equipment to accommodate batteries on car chassis of different heights. This improves the tightness of the battery swapping equipment's fit with the battery during replacement, avoiding problems such as battery swapping failure caused by gaps between the equipment and the battery. Furthermore, the drive mechanism is located between the lifting cams, making efficient use of the space between them and resulting in a more compact overall structure.

[0035] Preferably, the battery mounting section includes a battery moving plate and a vehicle positioning plate, the vehicle battery pack is placed on the battery moving plate, and the rotating platform is provided with a slide rail, the battery moving plate and the vehicle positioning plate can slide on the slide rail to position the vehicle and the vehicle battery pack.

[0036] In this solution, by setting up a battery moving plate and a vehicle positioning plate, the precise positioning of the vehicle battery pack and the vehicle chassis is ensured during the replacement process, avoiding installation failure of the vehicle battery pack due to positioning errors.

[0037] Preferably, the quick-swap device further includes a position monitoring mechanism, which is used to measure the position information between the vehicle and the battery swapping device. The drive mechanism outputs thrust according to the position information to drive the rotating platform to rotate at a certain angle.

[0038] In this solution, the position monitoring mechanism can measure the vehicle's position information, and the drive mechanism converts the position information into the required rotation angle of the rotating platform and drives the rotating platform to rotate, thereby achieving automatic alignment between the battery swapping equipment and the vehicle and meeting the battery swapping requirements.

[0039] Preferably, the quick-change device further includes a drag-reducing part installed on the support platform. The drag-reducing part is located between the rotating platform and the support platform. The top surface of the drag-reducing part abuts against the bottom surface of the rotating platform, and the rotating platform rotates on the drag-reducing part.

[0040] In this design, the drag reduction unit reduces the friction on the rotating platform, increases its service life, and also reduces the load on the motor.

[0041] Preferably, the rotating platform has four corners, and the drag-reducing part is provided at least at two opposite corners. The drag-reducing part is an arc-shaped guide rail or a slider.

[0042] In this design, the corners have sufficient space, do not interfere with other structures, facilitate the arrangement of drag-reducing components, and have a compact design; the arc-shaped guide rail and slider have simple structures, low cost, and are easy to integrate with the rotary platform.

[0043] Preferably, the drag-reducing part is a polytetrafluoroethylene plate or a copper graphene plate.

[0044] In this solution, the PTFE plate and copper graphene plate are wear-resistant and have smooth surfaces, which can reduce the friction force experienced by the rotating platform during rotation and improve transmission efficiency.

[0045] Preferably, the quick-change device further includes a locking mechanism for locking or activating the horizontal rotation of the rotating platform.

[0046] In this solution, the locking and starting of the rotating platform are controlled by a locking mechanism to prevent accidental starting of the rotating platform.

[0047] The present invention also discloses a battery swapping trolley, which includes a walking mechanism and the aforementioned quick-swap device with a rotation adjustment angle.

[0048] The positive and progressive effects of this invention are as follows: During the battery swapping process, when there is an error in the angle between the battery swapping vehicle and the fast swapping equipment and it needs to be adjusted, the drive mechanism drives the rotating platform to rotate by a certain angle, thereby fine-tuning the angle of the battery swapping equipment so that the position between the battery swapping equipment and the vehicle meets the battery swapping requirements. This reduces the requirements for the parking position of the battery swapping vehicle, meets the battery swapping needs of different vehicles, has high battery swapping efficiency, and improves the adaptability of the battery swapping equipment. Attached Figure Description

[0049] Figure 1 This is a schematic diagram of the battery swapping vehicle according to a preferred embodiment of the present invention.

[0050] Figure 2 This is a schematic diagram of the structure of a quick-change device according to a preferred embodiment of the present invention.

[0051] Figure 3 This is an exploded view of a quick-change device according to a preferred embodiment of the present invention.

[0052] Figure 4 This is a cross-sectional view of a quick-change device according to a preferred embodiment of the present invention.

[0053] Figure 5 This is a schematic diagram of the structure of the rotating platform according to a preferred embodiment of the present invention.

[0054] Figure 6This is a partial structural diagram of the quick-change device according to a preferred embodiment of the present invention.

[0055] Figure 7 This is a schematic diagram of the drive mechanism according to a preferred embodiment of the present invention.

[0056] Explanation of reference numerals in the attached figures

[0057] Support Platform 1

[0058] Rotating shaft 11

[0059] Drag Reduction Section 12

[0060] Rotating Platform 2

[0061] Mounting stand 21

[0062] Rotating body 22

[0063] Fixed plate 23

[0064] Corner 24

[0065] Battery mounting section 3

[0066] Battery moving board 31

[0067] Pallet Unit 311

[0068] Substrate 312

[0069] Unlock part 313

[0070] Positioning motor 314

[0071] Vehicle positioning plate 32

[0072] Drive mechanism 4

[0073] Universal joint 41

[0074] First end 411

[0075] Second end 412

[0076] Channel 42

[0077] Thrust output end 43

[0078] Motor 44

[0079] 45mm lead screw electric actuator

[0080] The channel along the horizontal axis L1

[0081] The axis L2 at the thrust output end

[0082] Angle D Detailed Implementation

[0083] The present invention will be described more clearly and completely below with reference to a preferred embodiment and the accompanying drawings.

[0084] like Figures 1-7 As shown, this embodiment discloses a quick-swap device with a rotation adjustment angle, comprising: a support platform 1; a battery mounting part 3, which is used to place the vehicle battery pack and move the vehicle battery pack; a rotating platform 2, on which the battery mounting part 3 is mounted, and the rotating platform 2 is set on the support platform 1 and can rotate relative to the support platform 1 in a horizontal plane; and a drive mechanism 4, mounted on the support platform 1, which is used to drive the rotating platform 2 to rotate. During the battery swapping process, when there is a certain skew angle error between the battery pack of the swapping vehicle or the battery pack mounting part and the battery mounting part of the quick-swap device, making it difficult to install or unload the battery, and adjustment is required, directly adjusting the position of the swapping vehicle is difficult to control in terms of accuracy, requiring multiple adjustments to align the swapping position. In this embodiment, the drive mechanism 4 of the quick-swap device can fine-tune the position of the swapping device by driving the rotating platform 2 to rotate by a certain angle, ensuring that the position between the swapping device and the swapping vehicle meets the swapping requirements. This reduces the requirements for the parking position of the swapping vehicle, meets the swapping needs of different vehicles, has high swapping efficiency, and improves the adaptability of the swapping device.

[0085] like Figure 2 , Figure 6 and Figure 7 As shown, the drive mechanism 4 includes two lead screw electric actuators 45 and two motors 44. The two motors 44 are respectively arranged on both sides of the support platform 1. The rotating end of the lead screw electric actuator 45 is connected to the output shaft of the motor 44, and the telescopic end of the lead screw electric actuator 45 forms the thrust output end 43 of the drive mechanism 4. The thrust directions of the motors 44 and the lead screw electric actuators 45 on both sides are as follows: Figure 2 As shown in Figures A and B, the lead screw electric actuator 45 converts the rotational motion of the motor 44 into linear motion at the output end, satisfying the power transmission requirements of the universal joint 41. Furthermore, the lead screw electric actuator 45 offers high power transmission accuracy and low frictional resistance. Of course, in other alternative embodiments, a linear motor 44 can also be used to achieve the driving force on the universal joint 41.

[0086] In this embodiment, there are two drive mechanisms 4, which are evenly arranged on both sides of the quick-change device along the traveling direction, wherein the traveling direction is as follows: Figure 2 As shown in C. Of course, in other alternative embodiments, the drive mechanism 4 can also be provided in an even number of two or more and evenly distributed on both sides of the quick-change device along the walking direction. Multiple drive mechanisms 4 can drive the rotating platform 2 to rotate more stably, and the even distribution of drive mechanisms 4 on both sides of the walking direction can avoid the error in the rotation angle caused by the power difference on both sides of the rotating platform 2.

[0087] Of course, in other alternative embodiments, only one drive mechanism 4 may be provided, that is, the drive mechanism 4 is located on one side of the quick-change device along the walking direction, and the drive mechanism 4 is located on the side of the support platform 1. The drive mechanism 4 is arranged on one side along the walking direction to avoid occupying the space of the walking drive mechanism 4 by setting the drive mechanism 4 at both ends of the walking direction. The drive mechanism 4 is located on one side along the walking direction and on the side of the support platform 1, making the overall structure of the quick-change device more compact.

[0088] In this embodiment, the drive mechanism 4 is rotationally symmetrically distributed along the rotating platform 2, thereby enabling the rotating platform 2 to be better subjected to force, facilitating the drive mechanism 4 to drive the rotating platform 2 to rotate, and achieving high transmission efficiency.

[0089] like Figure 6 As shown, the rotating platform 2 includes a mounting platform 21 that protrudes horizontally from the supporting platform 1, with its first end 411 fixed to the mounting platform 21. Because the mounting platform 21 protrudes from the supporting platform 1, the drive mechanism 4 drives the rotating platform 2 to rotate via the mounting portion, thus avoiding interference between the drive mechanism 4 and the supporting platform 1. Of course, in other alternative embodiments, the first end 411 of the universal joint 41 can also be configured to protrude towards and connect to the rotating platform 2, thereby avoiding interference.

[0090] like Figure 6 and Figure 7 As shown, the quick-swap device includes a universal joint 41, which has a first end 411 and a second end 412 that are rotatable relative to each other. The first end 411 is fixed on the rotating platform 2, and the second end 412 is connected to the thrust output end 43 of the drive mechanism 4. The universal joint 41 enables variable-angle power transmission, facilitating the use of linear motion at the output end to drive the rotating platform 2 to rotate. Alternatively, in other alternative embodiments, the drive mechanism 4 can be positioned at the center of the rotating platform 2, and the drive mechanism 4 can drive the rotating platform 2 to rotate by outputting rotational motion, thereby achieving fine-tuning of the position between the battery swapping device and the battery swapping vehicle.

[0091] Specifically, such as Figure 6 and Figure 7 As shown, the first end 411 and the second end 412 are set at an angle D on the horizontal plane. The first end 411 is provided with a horizontal channel 42 on the side of the support platform 1. The second end 412 passes through the channel 42 and leaves a gap between it and the two side walls of the channel 42. The thrust direction of the thrust output end 43 is set at an angle D with the extension direction of the channel 42. The angle D is an acute angle of rotation about the channel 42 towards the outside of the support platform 1.

[0092] like Figure 6 and Figure 7As shown, specifically, the angle D formed by the horizontal axis L1 of the channel and the axis L2 of the thrust output end, through the gap with the sidewall of the channel 42 and the outward rotation angle D, reduces the possibility of the first end 411 and the second end 412 getting stuck during thrust transmission, facilitating the transmission of thrust between the first end 411 and the second end 412. In this embodiment, the channel 42 can be a through slot, through which the universal joint 41 structure is fixed, maintaining the stability of the connection structure. Of course, in other alternative embodiments, the structure of the universal joint 41 can also adopt other forms that can achieve variable angle power transmission.

[0093] like Figures 2-4 As shown, the support platform 1 also includes a rotating shaft 11, which is positioned towards the rotating platform 2. The rotating platform 2 is mounted on the rotating shaft 11 and rotatably connected relative to it. The rotating shaft 11 can center-limit the rotating platform 2. By constraining the degrees of freedom of the rotating platform 2, the rotational accuracy of the rotating platform 2 can be improved, enabling precise battery swapping. In other alternative embodiments, the rotating shaft 11 may be omitted, and the rotating platform 2 may be constrained by a universal joint 41.

[0094] like Figures 2-5 As shown, the rotating shaft 11 is located at the center of the rotating platform 2. This allows the rotating platform 2 to better receive force and achieve high transmission efficiency. Of course, in other alternative embodiments, the rotating shaft 11 can also be eccentrically positioned.

[0095] In this embodiment, the support platform 1 also includes bearings. The rotating platform 2 is rotatably connected to the rotating shaft 11 via the bearings, and the rotating platform 2 is also rotatably connected to the support platform 1 via the bearings. The bearings can reduce friction, improve the flexibility and accuracy of the rotation angle of the rotating platform 2, and reduce wear at the connection between the rotating shaft 11 and the rotating platform 2. In other alternative embodiments, bearings may not be provided, that is, the mounting holes on the rotating platform 2 are directly fitted onto the rotating shaft 11.

[0096] like Figure 2 and Figure 4 As shown, the rotating platform 2 includes a rotating body 22 and a fixed plate 23. The fixed plate 23 is located at the center of the rotating body 22 and is detachably connected to the rotating body 22. The fixed plate 23 is rotatably connected to the rotating shaft 11. The fixed plate 23 and the rotating body 22 are detachably connected by bolts, thus separating the rotating platform 2. The rotating body 22 is connected to the rotating shaft 11 through the fixed plate 23. The torque experienced by the rotating platform 2 during rotation and the friction with the rotating shaft 11 are mainly borne by the fixed plate 23. The center of the rotating platform 2 is prone to damage. Compared to an integrated structure, this structure only requires the replacement of the fixed plate 23, without replacing the entire rotating platform 2, which facilitates the maintenance of the rotating platform 2. Of course, in other alternative embodiments, the rotating platform 2 can also be integrated.

[0097] In this embodiment, the support platform 1 includes a frame. Two lifting cams are provided at both ends of both sides of the battery mounting section 3. The lifting cams are mounted on the frame and are used to lift or lower the support platform 1. A drive mechanism 4 is located between the two lifting cams on one side, or there may be two or more drive mechanisms 4, with a drive mechanism 4 located between the two lifting cams on each side. The lifting cams can drive the support platform 1 to lift or lower as a whole, enabling the battery swapping equipment to accommodate batteries on car chassis of different heights. This improves the tightness of the battery swapping equipment's fit with the battery during replacement, avoiding problems such as battery swapping failure due to gaps between the equipment and the battery. Furthermore, the drive mechanism 4 is located between the lifting cams, making efficient use of the space between them and resulting in a more compact overall structure.

[0098] like Figure 3 As shown, the battery mounting section 3 includes a battery moving plate 31 and a vehicle positioning plate 32. The vehicle battery pack is placed on the battery moving plate 31. A slide rail is provided on the rotating platform 2, allowing the battery moving plate 31 and the vehicle positioning plate 32 to slide on the slide rail, thereby positioning the vehicle and the vehicle battery pack. By setting the battery moving plate 31 and the vehicle positioning plate 32, accurate positioning of the vehicle battery pack and the vehicle chassis is ensured during the replacement process, avoiding installation failure due to positioning errors. In this embodiment, both the battery moving plate 31 and the vehicle positioning plate 32 include a positioning motor 314 fixedly mounted on the rotating platform, which drives the battery moving plate 31 and the vehicle positioning plate 32 to slide on the track.

[0099] In this embodiment, the battery moving plate 31 is provided with a battery fixing part for placing the vehicle battery pack and an unlocking member 313. The unlocking member 313 passes through a through hole in the battery fixing part and is used to cooperate with a locking member on the vehicle to unlock the vehicle battery pack from the vehicle. The unlocking member 313 is installed in the through hole of the battery fixing part, ensuring that the unlocking member 313 can trigger the locking member and unlock the vehicle battery pack from the vehicle, thereby facilitating the replacement of the vehicle battery pack and improving operational accuracy.

[0100] Specifically, the battery moving plate 31 includes a base plate 312 that slides on a slide rail, and the battery fixing part includes at least two tray units 311. Each tray unit 311 is separately arranged and is floatingly connected to the base plate 312. By using multiple tray units 311, multiple independent contacts are achieved between the battery fixing part and the vehicle battery pack, thereby improving the load-bearing stability of the battery fixing part on the vehicle battery pack, preventing the battery fixing part from shaking under large external impacts, and thus ensuring the stability of the vehicle battery pack during the movement of the battery swapping equipment carrying the vehicle battery pack.

[0101] Specifically, the vehicle positioning plate 32 is equipped with a vehicle fixing part, which is connected to the vehicle chassis to fix the relative position of the battery mounting part 3 and the vehicle. The vehicle positioning plate 32 slides on the track to position the battery mounting part 3, and the vehicle fixing part is connected to the vehicle to fix the position of the battery mounting part 3, preventing the position of the battery mounting part 3 from changing after positioning, so as to make the installation position of the vehicle battery pack and the vehicle more accurate, and ensure the safety and efficiency of battery swapping.

[0102] In this embodiment, the quick-swap device also includes a position monitoring mechanism (not shown in the figure). The position monitoring mechanism is used to measure the position information between the vehicle and the battery swapping device. The drive mechanism 4 outputs thrust based on the position information to push the universal joint 41, thereby driving the rotating platform 2 to rotate at a certain angle. The position monitoring mechanism can measure the position information of the vehicle, and the drive mechanism 4 converts the position information into the required rotation angle of the rotating platform 2 and drives the rotating platform 2 to rotate, thereby achieving automatic alignment between the battery swapping device and the vehicle, thus meeting the battery swapping requirements.

[0103] like Figure 4 As shown, the quick-change device also includes a drag-reducing part 12 installed on the support platform 1. The drag-reducing part 12 is located between the rotating platform 2 and the support platform 1, with its top surface abutting against the bottom surface of the rotating platform 2. The rotating platform 2 rotates on the drag-reducing part 12. The drag-reducing part 12 reduces the friction experienced by the rotating platform 2, improving its service life and reducing the load on the motor 44. Of course, in other alternative embodiments, the drag-reducing part 12 may not be provided, that is, the rotating platform 2 may be directly installed on the support platform 1, and the rotating platform 2 may rotate on the support platform 1 when the quick-change device adjusts its angle.

[0104] like Figure 5 As shown, the rotating platform 2 has four corner portions 24, and drag-reducing parts 12 are disposed at the four corner portions 24. Of course, in other alternative embodiments, the drag-reducing parts 12 may also be disposed at least on two opposite corner portions 24. The corner portions 24 have sufficient space, do not interfere with other structures, facilitate the arrangement of the drag-reducing parts 12, and have a compact design.

[0105] Specifically, the drag-reducing part 12 is a slider. Of course, in other alternative embodiments, the drag-reducing part 12 can also be set as an arc-shaped guide rail. The arc-shaped guide rail and the slider have simple structure, low cost, and are easy to cooperate with the rotating platform 2.

[0106] Specifically, in this embodiment, the drag-reducing part 12 is a polytetrafluoroethylene (PTFE) plate. Of course, in other alternative embodiments, the drag-reducing part 12 can also be a copper graphene plate. PTFE plates and copper graphene plates are wear-resistant and have smooth surfaces, which can reduce the friction force experienced by the rotating platform 2 during rotation and improve transmission efficiency.

[0107] In this embodiment, the quick-change device also includes a locking mechanism, which is used to lock or start the rotation of the rotating platform 2 in the horizontal plane. Specifically, the locking mechanism is a fixed buckle. A first buckle is provided on the rotating platform 2, and a second buckle is provided on the support platform 1. The engagement and disengagement of the first and second buckles lock and start the rotating platform 2. By controlling the locking and starting of the rotating platform 2 through the locking mechanism, the accidental start of the rotating platform 2 is prevented.

[0108] This embodiment also discloses a battery swapping trolley, which includes a walking mechanism and the aforementioned quick-swap device with a rotation adjustment angle.

[0109] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention 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 invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A quick-change device with a rotating angle adjustment mechanism, comprising: Support platform; A battery mounting section, which is used to place a vehicle battery pack and move the vehicle battery pack. Its features are, The quick-change device also includes: A rotating platform, wherein the battery mounting part is mounted on the rotating platform, and the rotating platform is disposed on the support platform and can rotate relative to the support platform in a horizontal plane; A drive mechanism is mounted on the support platform and is used to drive the rotating platform to rotate. The support platform includes a frame, and two lifting cams are provided at both ends of both sides of the battery mounting part. The lifting cams are mounted on the frame and are used to lift or lower the support platform. The drive mechanism is located between the two lifting cams on one side, or there are two or more drive mechanisms, with a drive mechanism provided between the two lifting cams on each side.

2. The quick-change device with rotational angle adjustment as described in claim 1, characterized in that, The quick-change device also includes a universal joint, which has a first end and a second end that can rotate relative to each other. The first end is fixed on the rotating platform, and the second end is connected to the thrust output end of the drive mechanism.

3. The quick-change device with rotational angle adjustment as described in claim 2, characterized in that, The first end and the second end are set at an angle on the horizontal plane. The first end is provided with a horizontal channel on the side of the support platform. The second end passes through the channel and leaves a gap between it and the two side walls of the channel. The thrust direction of the thrust output end is set at an angle with the extension direction of the channel. The angle is an acute angle of rotation about the channel direction towards the outside of the support platform.

4. The quick-change device with rotational angle adjustment as described in claim 2, characterized in that, The drive mechanism includes two lead screw electric actuators and two motors. The two motors are respectively arranged on both sides of the support platform. The rotating end of the lead screw electric actuator is connected to the output shaft of the motor, and the telescopic end of the lead screw electric actuator forms the thrust output end of the drive mechanism.

5. The quick-change device with rotational angle adjustment as described in claim 1, characterized in that, The drive mechanism is disposed on the side of the support platform and located on at least one side of the quick-change device along the walking direction.

6. The quick-change device with rotational angle adjustment as described in claim 5, characterized in that, The number of drive mechanisms is at least two and is an even number, and the drive mechanisms are evenly arranged on both sides of the quick-change device along the walking direction.

7. The quick-change device with rotational angle adjustment as described in claim 6, characterized in that, The drive mechanism is distributed symmetrically along the rotating platform.

8. The quick-change device with rotational angle adjustment as described in claim 2, characterized in that, The rotating platform includes a mounting platform that protrudes horizontally from the support platform, and the first end is fixed on the mounting platform.

9. The quick-change device with rotational angle adjustment as described in claim 1, characterized in that, The support platform also includes a rotating shaft, which is positioned toward the rotating platform, and the rotating platform is mounted on the rotating shaft and rotatably connected relative to the rotating shaft.

10. The quick-change device with rotational angle adjustment as described in claim 9, characterized in that, The rotation axis is located at the center of the rotation platform.

11. The quick-change device with rotational angle adjustment as described in claim 9, characterized in that, The support platform also includes bearings, and the rotating platform is rotatably connected to the rotating shaft via the bearings.

12. The quick-change device with rotational angle adjustment as described in claim 9, characterized in that, The rotating platform includes a rotating body and a fixed plate. The fixed plate is located at the center of the rotating body and is detachably connected to the rotating body. The fixed plate is rotatably connected to the rotating shaft.

13. The quick-change device with rotational angle adjustment as described in any one of claims 1-12, characterized in that, The battery mounting section includes a battery moving plate and a vehicle positioning plate. The vehicle battery pack is placed on the battery moving plate. The rotating platform is provided with a slide rail, and the battery moving plate and the vehicle positioning plate can slide on the slide rail to position the vehicle and the vehicle battery pack.

14. The quick-change device with rotational angle adjustment as described in any one of claims 1-12, characterized in that, The quick-change device also includes a position monitoring mechanism, which is used to measure the position information between the vehicle and the quick-change device. The drive mechanism outputs thrust according to the position information to drive the rotating platform to rotate at a certain angle.

15. The quick-change device with rotational angle adjustment as described in any one of claims 1-12, characterized in that, The quick-change device also includes a drag-reducing part installed on the support platform. The drag-reducing part is located between the rotating platform and the support platform. The top surface of the drag-reducing part abuts against the bottom surface of the rotating platform, and the rotating platform rotates on the drag-reducing part.

16. The quick-change device with rotational angle adjustment as described in claim 15, characterized in that, The rotating platform has four corners, and the drag-reducing part is provided at least at two opposite corners. The drag-reducing part is an arc-shaped guide rail or a slider.

17. The quick-change device with rotational angle adjustment as described in claim 15, characterized in that, The drag-reducing part is a polytetrafluoroethylene plate or a copper graphene plate.

18. The quick-change device with rotational angle adjustment as described in any one of claims 1-12, characterized in that, The quick-change device also includes a locking mechanism, which is used to lock or activate the horizontal rotation of the rotating platform.

19. A battery swapping vehicle, characterized in that, It includes a walking mechanism and a quick-change device with a rotational adjustment angle as described in any one of claims 1-18.

Images