A new energy vehicle battery pack replacement system

Abstract

This invention discloses a battery pack replacement system for new energy vehicles, relating to the field of new energy vehicle technology. It addresses the problem that existing battery swapping equipment for new energy vehicles lacks compatibility and cannot swap batteries for different vehicle models. The battery pack replacement system of this invention includes a traveling unit, a lifting unit, a lifting platform, and a disassembly / assembly unit. The disassembly / assembly unit is connected to the lifting platform, the lifting platform is connected to the lifting unit, and the lifting unit is connected to the traveling unit. This battery pack replacement system improves the practicality and compatibility of existing battery pack replacement systems, enabling vehicle owners to perform battery swapping operations without having to visit specific battery swapping stations, thus providing convenience for new energy vehicle owners.

Description

Technical Field

[0001] This invention relates to the field of new energy vehicle technology, and in particular to a new energy vehicle battery pack replacement system. Background Technology

[0002] In today's new energy vehicle sector, my country's new energy vehicle industry has entered a stage of rapid large-scale development, with the market penetration rate curve accelerating upward. New energy vehicle energy replenishment modes are generally divided into charging and battery swapping modes, and have evolved from "battery swapping as the main mode, charging as a supplement" to "charging as the main mode, battery swapping as a supplement" to the current "parallel development of charging and battery swapping."

[0003] However, due to the incompatibility of battery pack specifications among battery swapping vehicles and the lack of compatible battery pack replacement devices, different models of new energy vehicles can only go to specific battery swapping stations when swapping batteries, causing inconvenience to vehicle owners. Summary of the Invention

[0004] Based on the above analysis, the present invention aims to provide a battery pack replacement system for new energy vehicles, in order to solve the problem that the existing battery swapping equipment for new energy vehicles lacks adaptability and cannot swap batteries for different vehicle models.

[0005] The objective of this invention is mainly achieved through the following technical solutions:

[0006] This invention discloses a battery pack replacement system for new energy vehicles, including a walking unit, a lifting unit, a lifting platform, and a disassembly / assembly unit. The disassembly / assembly unit is connected to the lifting platform, the lifting platform is connected to the lifting unit, and the lifting unit is connected to the walking unit.

[0007] Furthermore, the walking unit includes a frame and multiple wheel sections, the wheel sections being connected via the frame, and the frame being connected to the lifting unit.

[0008] Furthermore, it also includes a travel track, which cooperates with the wheel section to enable the wheel section to move along the travel track.

[0009] Furthermore, the walking unit also includes a drive motor, which is connected to any of the wheels. The drive motor is equipped with a drive conversion gear, which can drive the drive conversion gear to rotate.

[0010] Furthermore, a conversion rack is provided on the travel track, the conversion rack is meshed with the drive conversion gear, and the drive conversion gear can move along the conversion rack.

[0011] Furthermore, the lifting unit includes a lifting bracket, one end of which is connected to the vehicle frame and the other end of which is connected to the lifting platform.

[0012] Furthermore, the lifting bracket is configured as a foldable structure.

[0013] Furthermore, the lifting unit also includes a pallet, and the traveling unit also includes a connecting frame, which is connected to the wheel section, and the pallet is connected to the connecting frame.

[0014] Furthermore, the lifting unit also includes an electric cylinder, which is fixed on the support plate and connected to the lifting bracket.

[0015] Furthermore, a position controller is provided on the walking unit, which can control the movement of the walking unit.

[0016] Furthermore, the disassembly and assembly unit includes a base plate, a disassembly and assembly drive cylinder, and a top plate. The disassembly and assembly drive cylinder is mounted on the base plate, and the top plates are symmetrically arranged on both sides of the disassembly and assembly drive cylinder. A connecting rod is mounted on the telescopic rod of the disassembly and assembly drive cylinder, and the top plates are connected to each other through the connecting rod. The top plates can be moved by extending and retracting the telescopic rod of the drive cylinder.

[0017] Furthermore, the disassembly and assembly unit also includes a partition plate, which is located between the bottom plate and the top plate. The partition plate and the top plate are connected by a slide rail and a slider, so that the top plate can move along the slide rail on the partition plate under the drive of the disassembly and assembly drive cylinder.

[0018] Furthermore, the partition plate and the base plate are connected by a slide rail and a slider. A slide groove is provided on the top plate, and the slide groove is connected to a connecting rod so that the slide groove can move along the connecting rod. The disassembly and assembly unit also includes a partition plate adjusting component, which is connected to the partition plate and is used to drive the partition plate to move along the slide rail of the base plate.

[0019] Furthermore, the disassembly and assembly unit also includes a gripper assembly, which includes an adjusting gripper and a fixed gripper. The adjusting gripper is connected to the top plate, and the fixed gripper is connected to the middle plate. The adjusting gripper and the fixed gripper cooperate to disassemble the snap-on battery pack.

[0020] Furthermore, the assembly / disassembly unit also includes a gripper adjustment component, which is connected to the top plate. A gripper slide rail is provided on the top plate. The adjustable gripper is connected to the gripper slide rail via a slider. The gripper adjustment component is connected to the slider of the adjustable gripper, which drives the adjustable gripper to move along the gripper slide rail.

[0021] Furthermore, the disassembly and assembly unit also includes a conversion assembly, which is connected to the adjusting gripper and the fixing gripper. The conversion assembly includes a conversion part, a rotary motor and a rotating head. The conversion part and the rotary motor are connected to the gripper assembly. The rotary motor is connected to the rotating head and is used to drive the rotating head to rotate. The conversion part is used to make the rotary motor rotate so that the position of the rotating head matches the bolt holes of the bolt-type battery pack.

[0022] Furthermore, the conversion unit includes a push-pull head, a connecting rod, and a conversion rack. The push-pull head is connected to the conversion rack via the connecting rod, and the connecting rod is connected to the adjusting jaw or the fixed jaw via a ring. The connecting rod can move along the ring.

[0023] Furthermore, a bearing rod is provided on the rotary motor, and bearing seats are provided on the adjusting jaw and the fixed jaw. One end of the bearing rod is connected to the adjusting jaw or the fixed jaw through the bearing seat, and the other end is fixedly connected to the rotary motor. A conversion gear is provided on the bearing rod, which can drive the bearing rod to rotate. The conversion gear meshes with the conversion rack.

[0024] Furthermore, a centering sleeve is provided on the rotating head. The centering sleeve is tapered, and its diameter gradually increases towards the direction of the rotating motor. The maximum diameter of the centering sleeve is equal to the inner diameter of the bolt hole.

[0025] Furthermore, the conversion assembly also includes a locking part, which is fixedly connected to the gripper assembly. One end of the connecting rod is fixedly connected to the push-pull head, and the other end passes through the locking part and is connected to the conversion rack through a bearing seat. When the locking part is connected to the push-pull head, the position of the connecting rod can be fixed.

[0026] Furthermore, a ball groove is provided on the push-pull head, and a rolling ball is provided in the ball groove. The rolling ball is connected to the ball groove by a spring. When the spring is not under force, part of the rolling ball is located in the ball groove, and the other part protrudes from the ball groove.

[0027] Furthermore, a fixing groove is provided inside the locking part. The shape of the fixing groove matches the push-pull head. When the rotating head is perpendicular to the top plate, the push-pull head enters the fixing groove.

[0028] Furthermore, a fixing ball hole is provided in the fixing groove. The fixing ball hole cooperates with the rolling ball. The rolling ball enters the fixing ball hole to fix the connection between the push-pull head and the locking part.

[0029] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0030] (1) The new energy vehicle battery pack replacement system provided by this invention enables the movement of the walking unit to be controlled according to the vehicle's position by setting up a walking unit and a walking track. The walking unit and the walking track are connected by a conversion gear and rack, which increases the stability of the walking unit's movement and prevents the walking unit's walking path from deviating. By setting up a lifting unit and a lifting platform, the lifting unit can be adjusted and controlled to lift according to the height of the vehicle's chassis, thereby allowing the battery pack to be disassembled through the disassembly and assembly unit. The operation is convenient and easy to use.

[0031] (2) The new energy vehicle battery pack replacement system provided by the present invention can be adapted to battery packs of different models by setting up a disassembly and assembly unit. The disassembly and assembly unit includes a base plate, a middle plate, and a top plate. The base plate is connected to the lifting platform by multiple springs, which can eliminate the parallelism error of the vehicle, thereby ensuring that the gripper assembly and the battery pack remain parallel. The middle plate is connected to the base plate by a slide rail and a slider, so that the middle plate can be controlled to move along the base plate by the middle plate adjustment component; the middle plate is connected to the top plate by a slide rail and a slider, so that the top plate can move along the slide rail on the middle plate under the drive of the disassembly and assembly drive cylinder. By moving the middle plate, the distance between the gripper assemblies can be changed, so that the new energy vehicle battery pack replacement system can be adjusted according to different models of battery packs; by moving the top plate, the adjusting gripper can push the unlocking contact point on the battery pack, thereby completing the installation or disassembly of the battery pack. The operation is simple and can be applied to a variety of different models of battery packs, increasing the universality and adaptability of the new energy vehicle battery swapping process.

[0032] (3) The new energy vehicle battery pack replacement system provided by the present invention includes a clamp adjustment component in the disassembly and assembly unit. The clamp adjustment component is connected to the top plate, and a clamp slide rail is provided on the top plate. The adjustable clamp is connected to the clamp slide rail through a slider. The clamp adjustment component is connected to the slider of the adjustable clamp, thereby driving the adjustable clamp to move along the clamp slide rail. This allows the disassembly and assembly unit to adjust the distance between the adjustable clamp and the fixed clamp according to the battery pack of different widths. The operation is simple and convenient. It increases the adaptability of the clamp assembly to different vehicle models and further improves the applicability of the new energy vehicle battery pack replacement system.

[0033] (4) The new energy vehicle battery pack replacement system provided by this invention further includes a conversion component in the disassembly and assembly unit. The conversion component is connected to the gripper assembly and is used to disassemble bolt-type battery packs. This allows the new energy vehicle battery pack replacement system to install and disassemble both snap-on and bolt-type battery packs. The conversion component rotates the rotary motor, causing the position of the rotating head to align with the bolt holes of the bolt-type battery pack, enabling the disassembly and installation of the bolts, thus completing the disassembly and installation of the bolt-type battery pack. A centering sleeve is provided to keep the rotating head at the center of the bolt holes, facilitating bolt disassembly or installation. A locking component is provided to keep the rotating head perpendicular to the top plate, increasing the stability of the rotating head in disassembling or installing the bolts. The conversion component increases the types of battery packs and vehicle brands that the new energy vehicle battery pack replacement system can adapt to, further enhancing its practicality and compatibility. This allows vehicle owners to perform battery swapping without having to go to a specific battery swapping station, providing convenience for new energy vehicle owners.

[0034] The above-described technical solutions can also be combined with each other to achieve more preferred combinations. Other features and advantages of the present invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of the invention can be realized and obtained through the embodiments described and the accompanying drawings, which are particularly pointed out. Attached Figure Description

[0035] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0036] Figure 1 This is a schematic diagram of the overall structure of the new energy vehicle battery pack replacement system according to Embodiment 1 of the present invention;

[0037] Figure 2 This is a schematic diagram of the connection between the walking unit and the walking track in Embodiment 1 of the present invention;

[0038] Figure 3 For the present invention Figure 1 A schematic diagram of the structure of part A;

[0039] Figure 4 This is a schematic diagram of the lifting unit and lifting platform according to Embodiment 1 of the present invention;

[0040] Figure 5 This is a schematic diagram of the disassembly and assembly unit according to Embodiment 1 of the present invention;

[0041] Figure 6This is a schematic diagram of the conversion component and adjusting gripper in Embodiment 2 of the present invention;

[0042] Figure 7 This is a schematic diagram of the conversion rack and conversion gear in Embodiment 2 of the present invention;

[0043] Figure 8 This is a schematic diagram of the conversion part and locking part according to Embodiment 2 of the present invention;

[0044] Figure 9 This is a schematic diagram of the structure of the rolling ball and ball groove in Embodiment 2 of the present invention.

[0045] Figure label:

[0046] 1-Walking unit; 11-Frame; 12-Wheel section; 13-Drive motor; 131-Drive conversion gear; 14-Connecting frame; 2-Lifting unit; 21-Lifting bracket; 22-Electric cylinder; 23-Panel; 3-Lifting platform; 4-Disassembly / Assembly unit; 41-Base plate; 42-Section plate; 43-Top plate; 44-Disassembly / Assembly drive cylinder; 45-Grip adjustment component; 46-Section plate adjustment component; 47-Grip assembly; 471-Adjusting gripper; 472-Fixed gripper; 473- Supporting arc groove; 474-Frame; 48-Conversion component; 481-Conversion part; 4811-Push-pull head; 48111-Ball groove; 48112-Rolling ball; 4812-Connecting rod; 4813-Conversion rack; 482-Locking part; 4821-Fixing groove; 48211-Fixing ball hole; 483-Rotating motor; 4831-Conversion gear; 484-Rotating head; 4841-Centering sleeve; 5-Traveling track; 51-Traveling rack; 6-Snap-on battery pack. Detailed Implementation

[0047] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of the present invention and are used together with the invention to illustrate the principles of the invention.

[0048] Example 1

[0049] This embodiment provides a new energy vehicle battery pack replacement system for the disassembly and installation of a snap-on battery pack 6, such as... Figure 1 As shown, it includes a walking unit 1, a lifting unit 2, a lifting platform 3, and a disassembly / assembly unit 4. The disassembly / assembly unit 4 is connected to the lifting platform 3 and is used to disassemble and assemble the snap-on battery pack 6. The lifting platform 3 is connected to the lifting unit 2, and the lifting unit 2 can raise or lower the position of the lifting platform 3 so that the position of the lifting platform 3 matches the position of the snap-on battery pack 6. The lifting unit 2 is connected to the walking unit 1.

[0050] Preferably, a position controller is provided on the walking unit 1, and the movement of the walking unit 1 can be controlled by the position controller.

[0051] like Figures 1-2 As shown, the traveling unit 1 includes a frame 11 and wheel sections 12. There are multiple wheel sections 12, which are connected to the frame 11 and can drive the frame 11 to move. The frame 11 is connected to the lifting unit 2, thereby driving the lifting unit 2 to move with the frame 11.

[0052] Furthermore, it also includes a travel track 5, which cooperates with the wheel section 12 so that the wheel section 12 can move along the travel track 5.

[0053] Furthermore, such as Figures 1-3 As shown, the walking unit 1 also includes a drive motor 13, which is connected to any wheel part 12. A drive gear 131 is provided on the drive motor 13, which can drive the drive gear 131 to rotate. A walking rack 51 is provided on the walking track 5, which meshes with the drive gear 131. By rotating the drive gear 131, the drive gear 131 moves along the walking rack 51, thereby driving the walking unit 1 to move along the walking track 5.

[0054] like Figure 4 As shown, the lifting unit 2 includes a lifting bracket 21. One end of the lifting bracket 21 is connected to the vehicle frame 11, and the other end is connected to the lifting platform 3. The lifting bracket 21 is configured as a foldable structure, and the lifting platform 3 can be raised or lowered through the lifting bracket 21.

[0055] Furthermore, the lifting unit 2 also includes an electric cylinder 22 and a pallet 23, and the walking unit 1 also includes a connecting frame 14. The connecting frame 14 is connected to the wheel part 12, the pallet 23 is connected to the connecting frame 14, the electric cylinder 22 is fixed on the pallet 23, and the electric cylinder 22 is connected to the lifting bracket 21. One side of the lifting bracket 21 connected to the electric cylinder 22 is fixedly connected to the connecting frame 14, and the other side is connected to the connecting frame 14 through a slide rail and a slider. By controlling the extension and retraction of the electric cylinder 22, the lifting bracket 21 can be unfolded or folded, thereby controlling the lifting of the lifting platform 3.

[0056] like Figure 5 As shown, the disassembly and assembly unit 4 includes a base plate 41, a top plate 43, and a disassembly and assembly drive cylinder 44. The disassembly and assembly drive cylinder 44 is mounted on the base plate 41, and the top plates 43 are symmetrically arranged on both sides of the disassembly and assembly drive cylinder 44. A connecting rod is mounted on the telescopic rod of the disassembly and assembly drive cylinder 44, and the top plates 43 are connected by the connecting rod. The top plates 43 can be moved by extending and retracting the telescopic rod of the drive cylinder 44.

[0057] Furthermore, the disassembly and assembly unit 4 also includes a partition plate 42, which is disposed between the bottom plate 41 and the top plate 43. The position of the partition plate 42 matches that of the top plate 43. The partition plate 42 and the top plate 43 are connected by a slide rail and a slider, so that the top plate 43 can move along the slide rail on the partition plate 42 under the drive of the disassembly and assembly drive cylinder 44.

[0058] Furthermore, the partition plate 42 is connected to the bottom plate 41 by a slide rail and a slider. A slide groove is provided on the top plate 43, and the slide groove is connected to the connecting rod so that the slide groove can move along the connecting rod. The disassembly and assembly unit 4 also includes a partition plate adjusting component 46, which is connected to the partition plate 42 and is used to drive the partition plate 42 to move along the slide rail on the bottom plate 41.

[0059] For example, the partition plate adjustment component 46 includes a servo motor and a lead screw. The servo motor is connected to the lead screw, which is set in the slide rail of the base plate 41. The lead screw is connected to the slider of the partition plate 42. The servo motor drives the lead screw to rotate, causing the partition plate 42 to move along the slide rail of the base plate 41.

[0060] Furthermore, the disassembly and assembly unit 4 also includes a gripper assembly 47, which includes an adjusting gripper 471 and a fixed gripper 472. The adjusting gripper 471 is connected to the top plate 43, and the fixed gripper 472 is connected to the intermediate plate 42. The adjusting gripper 471 and the fixed gripper 472 cooperate to disassemble the snap-on battery pack 6.

[0061] Furthermore, the disassembly and assembly unit 4 also includes a gripper adjustment component 45, which is connected to the top plate 43. A gripper slide rail is provided on the top plate 43. The adjustable gripper 471 is connected to the gripper slide rail via a slider. The gripper adjustment component 45 is connected to the slider of the adjustable gripper 471, thereby driving the adjustable gripper 471 to move along the gripper slide rail. This allows the disassembly and assembly unit 4 to adjust the distance between the adjustable gripper 471 and the fixed gripper 472 according to the different widths of the snap-on disassembly and assembly battery pack 6, increasing the adaptability of the gripper assembly 47 to different vehicle models.

[0062] For example, the gripper adjustment component 45 includes a servo motor and a lead screw. The servo motor is connected to the lead screw, which is disposed in the gripper slide rail. The lead screw is connected to the slider on the adjusting gripper 471. The servo motor drives the lead screw to rotate, causing the adjusting gripper 471 to move along the gripper slide rail, thereby changing the distance between the fixed gripper 472 and the adjusting gripper 471.

[0063] Preferably, the base plate 41 is connected to the lifting platform 3 by multiple springs, which eliminate the parallelism error of the vehicle and thus ensure that the gripper assembly 47 and the snap-on battery pack 6 remain parallel.

[0064] When it is necessary to disassemble the snap-on battery pack 6, the distance between the fixed clamp 472 and the adjusting clamp 471 is adjusted by the clamp adjusting component 45 according to the vehicle model. The walking unit 1 is controlled to move so that the disassembly unit 4 and the snap-on battery pack 6 are aligned. The height of the lifting platform 3 is adjusted by the electric cylinder 22 so that the fixed clamp 472 is inserted into the snap-on battery pack 6 and engages with the positioning block of the snap-on battery pack 6. The adjusting clamp 471 is inserted into the unlocking contact point of the snap-on battery pack 6. The drive electric cylinder 44 is activated to control the top plate 43 to move, thereby driving the adjusting clamp 471 to push the unlocking contact point, completing the unlocking of the snap-on battery pack 6 and separating the snap-on battery pack 6 from the vehicle.

[0065] When it is necessary to install the snap-on battery pack 6, the fixing block of the snap-on battery pack 6 is engaged with the fixing claw 472, the claw 471 is adjusted to engage with the unlocking contact point, the walking unit 1 is controlled to move, so that the installation and removal unit 4 is aligned with the snap-on battery pack 6, the height of the lifting platform 3 is adjusted by the electric cylinder 22, and the snap-on battery pack 6 is sent into the battery slot of the car. The top plate 43 is controlled to move by the installation and removal drive electric cylinder 44, so that the adjusting claw 471 pushes the unlocking contact point, locking the snap-on battery pack 6 to the car, thus completing the installation of the snap-on battery pack 6.

[0066] The distance between the top plates 43 can be adjusted by adjusting the position of the partition plate 42, thereby changing the distance between the gripper assemblies 47; the distance between the adjustable gripper 471 and the fixed gripper 472 can be adjusted by the gripper adjustment component 45, which increases the adaptability of the gripper assembly 47 to different vehicle models, enabling the new energy vehicle battery pack replacement system to install and remove different models of snap-on battery packs 6.

[0067] Example 2

[0068] This embodiment provides a battery pack replacement system for new energy vehicles, such as... Figure 6 As shown, the difference from Embodiment 1 is that the disassembly and assembly unit 4 further includes a conversion component 48, which is connected to the gripper component 47 and is used to disassemble the bolt-type battery pack. This allows the new energy vehicle battery pack replacement system to install and disassemble both snap-on and bolt-type battery packs, enabling the new energy vehicle battery pack replacement system to be compatible with more vehicle models.

[0069] The conversion assembly 48 is connected to the adjusting jaw 471 and the fixed jaw 472. The conversion assembly 48 includes a conversion part 481, a rotary motor 483 and a rotating head 484. The conversion part 481 and the rotary motor 483 are connected to the jaw assembly 47. The rotary motor 483 is connected to the rotating head 484 and is used to drive the rotating head 484 to rotate, thereby completing the disassembly of the bolt. The conversion part 481 is used to rotate the rotary motor 483 so that the position of the rotating head 484 is engaged with the bolt hole of the bolt-type battery pack, thereby enabling the rotating head 484 to disassemble and install the bolt, thereby completing the disassembly and installation of the bolt-type battery pack.

[0070] Furthermore, such as Figures 6-7 As shown, the conversion unit 481 includes a push-pull head 4811, a connecting rod 4812, and a conversion rack 4813. The push-pull head 4811 is connected to the conversion rack 4813 through the connecting rod 4812. The connecting rod 4812 is connected to the adjusting jaw 471 or the fixed jaw 472 through a ring, so that the connecting rod 4812 can move along the ring under the pushing and pulling action of the push-pull head 4811, thereby driving the conversion rack 4813 to move.

[0071] A bearing rod is provided on the rotary motor 483, and bearing seats are provided on the adjusting jaw 471 and the fixed jaw 472. One end of the bearing rod is connected to the adjusting jaw 471 or the fixed jaw 472 through the bearing seat, and the other end is fixedly connected to the rotary motor 483. A conversion gear 4831 is provided on the bearing rod. The conversion gear 4831 can drive the bearing rod to rotate. The conversion gear 4831 meshes with the conversion rack 4813, so that the conversion gear 4831 can rotate with the movement of the conversion rack 4813, and then drive the rotary motor 483 to rotate through the shaft.

[0072] Understandably, when it is necessary to disassemble or install the bolt-type battery pack, the push-pull head 4811 drives the conversion rack 4813 to move, causing the conversion gear 4831 to drive the rotary motor 483 to rotate until the rotating head 484 is perpendicular to the top plate 43. The gap between the gripper assemblies 47 is adjusted by the plate adjustment component 46, and the gap between the gripper 471 and the fixed gripper 472 is adjusted by the gripper adjustment component 45, so that the position of the rotating head 484 matches the bolt hole of the bolt-type battery pack. By adjusting the height of the lifting platform 3, the rotating head 484 enters the bolt hole, and the rotary motor 483 drives the rotating head 484 to rotate, completing the disassembly or installation of the bolt.

[0073] It is worth noting that when the rotating head 484 is perpendicular to the top plate 43, the height of the rotating head 484 is greater than that of the adjusting jaw 471 and the fixing jaw 472, and when the rotating head 484 is inserted into the bolt hole, the length of the rotating head 484 meets the length requirements for disassembling and assembling the bolt.

[0074] When it is necessary to disassemble the snap-on battery pack 6, the push-pull head 4811 drives the conversion rack 4813 to move, so that the conversion gear 4831 drives the rotary motor 483 to rotate until the rotating head 484 is parallel to the top plate 43, so as to prevent the conversion component 48 from interfering with the disassembly operation of the gripper component 47.

[0075] Furthermore, such as Figure 6 As shown, a centering sleeve 4841 is provided on the rotating head 484. The centering sleeve 4841 is tapered, and its diameter gradually increases towards the rotating motor 483, with the maximum diameter of the centering sleeve 4841 being equal to the inner diameter of the bolt hole. When the rotating head 484 is inserted into the bolt hole, the centering sleeve 4841 ensures that the rotating head 484 remains at the center of the bolt hole, thus facilitating the removal or installation of the bolt and preventing difficulties in removing or installing the bolt due to misalignment of the rotating head 484.

[0076] Furthermore, such as Figure 8 As shown, the conversion assembly 48 also includes a locking part 482, which is fixedly connected to the gripper assembly 47. The connecting rod 4812 passes through the locking part 482. When the locking part 482 is connected to the push-pull head 4811, it can fix the position of the connecting rod 4812, thereby keeping the rotating head 484 perpendicular to the top plate 43 and preventing the position of the rotating head 484 from shifting.

[0077] One end of the connecting rod 4812 is fixedly connected to the push-pull head 4811, and the other end is connected to the conversion rack 4813 via a bearing seat. For example... Figure 9 As shown, the push-pull head 4811 is provided with ball grooves 48111, and multiple ball grooves 48111 are provided. A rolling ball 48112 is placed inside each ball groove 48111. The rolling ball 48112 is connected to the ball groove 48111 by a spring. When the spring is not under force, part of the rolling ball 48112 is located inside the ball groove 48111, and the other part protrudes from the ball groove 48111. A fixing groove 4821 is provided inside the locking part 482. The shape of the fixing groove 4821 matches the push-pull head 4811. When the push-pull head is rotated... When the rotating head 484 is perpendicular to the top plate 43, the push-pull head 4811 enters the fixing groove 4821. The fixing groove 4821 is provided with a fixing ball hole 48211, which cooperates with the rolling ball 48112. The rolling ball 48112 enters the fixing ball hole 48211 to fix the connection between the push-pull head 4811 and the locking part 482, thereby fixing the displacement of the conversion rack 4813, keeping the rotating head 484 perpendicular to the top plate 43, and preventing the rotating motor 483 from rotating.

[0078] When it is necessary to keep the rotating head 484 perpendicular to the top plate 43, the push-pull head 4811 is pushed, causing the push-pull head 4811 to enter the fixing groove 4821. The rolling ball 48112 is squeezed into the ball groove 48111 by the inner wall of the fixing groove 4821, causing the spring to be compressed. The push-pull head 4811 is rotated, causing the position of the rolling ball 48112 to rotate to the position of the fixing ball hole 48211. The spring returns to its original position, pushing the rolling ball 48112 into the fixing ball hole 48211, thereby fixing the connection between the push-pull head 4811 and the locking part 482, preventing the conversion rack 4813 from moving and driving the conversion gear 4831 to rotate, causing the rotary motor 483 to be displaced.

[0079] When the gripper assembly 47 is needed to disassemble the snap-on battery pack 6, rotate the push-pull head 4811 to move the ball 48112 out of the fixed ball hole 48211 and pull the push-pull head 4811 away from the locking part 482. This causes the conversion rack 4813 to drive the conversion gear 4831 to rotate, so that the rotating head 484 is parallel to the top plate 43.

[0080] Preferably, the length of the push-pull head 4811 is greater than the depth of the fixed groove 4821, thereby facilitating the movement and rotation of the push-pull head 4811.

[0081] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A new energy vehicle battery pack replacement system, characterized in that, It includes a walking unit (1), a lifting unit (2), a lifting platform (3) and a disassembly unit (4). The disassembly unit (4) is connected to the lifting platform (3), the lifting platform (3) is connected to the lifting unit (2), and the lifting unit (2) is connected to the walking unit (1).

2. The new energy vehicle battery pack replacement system according to claim 1, characterized in that, The walking unit (1) includes a frame (11) and a plurality of wheel parts (12), the wheel parts (12) being connected through the frame (11), and the frame (11) being connected to the lifting unit (2).

3. The new energy vehicle battery pack replacement system according to claim 2, characterized in that, It also includes a travel track (5), which cooperates with the wheel part (12) so that the wheel part (12) can move along the travel track (5).

4. The new energy vehicle battery pack replacement system according to claim 3, characterized in that, The walking unit (1) also includes a drive motor (13), which is connected to any of the wheel parts (12). The drive motor (13) is provided with a drive conversion gear (131), which can drive the drive conversion gear (131) to rotate.

5. The new energy vehicle battery pack replacement system according to claim 4, characterized in that, A conversion rack (51) is provided on the walking track (5), and the conversion rack (51) is meshed with the drive conversion gear (131). The drive conversion gear (131) can move along the conversion rack (51).

6. The new energy vehicle battery pack replacement system according to claim 2, characterized in that, The lifting unit (2) includes a lifting bracket (21), one end of which is connected to the vehicle frame (11) and the other end is connected to the lifting platform (3).

7. The new energy vehicle battery pack replacement system according to claim 6, characterized in that, The lifting bracket (21) is configured as a foldable structure.

8. The new energy vehicle battery pack replacement system according to claim 7, characterized in that, The lifting unit (2) also includes a pallet (23), and the walking unit (1) also includes a connecting frame (14). The connecting frame (14) is connected to the wheel part (12), and the pallet (23) is connected to the connecting frame (14).

9. The new energy vehicle battery pack replacement system according to claim 8, characterized in that, The lifting unit (2) also includes an electric cylinder (22), which is fixed on the support plate (23) and connected to the lifting bracket (21).

10. The new energy vehicle battery pack replacement system according to any one of claims 1-9, characterized in that, The walking unit (1) is equipped with a position controller, which can control the movement of the walking unit (1).

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