New energy automobile battery pack replacement device and replacement method

Abstract

The invention provides a new energy automobile battery pack replacement device and method, the new energy automobile battery pack replacement device comprises a moving frame, the upper surface of the moving frame is connected with a fork arm type elevator, and the top end of the fork arm type elevator is connected with a supporting mechanism; the supporting mechanism comprises a supporting frame connected to the top end of the fork arm type elevator, a through hole formed in a frame body of the supporting frame, and a conveying and clamping assembly connected into a hole body of the through hole. The conveying and clamping assembly comprises power components connected to the two sides of the interior of the through hole and a first conveying roller connected with the execution ends of the power components, and a driven component is connected between the two power components and connected with a second conveying roller. The height of the supporting mechanism is rapidly adjusted through the fork arm type lifter, the position of the battery pack is accurately aligned, and the positioning time is shortened.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of new energy vehicles, and particularly relates to a device and a method for replacing a battery pack of a new energy vehicle. Background Art

[0002] With the popularization of new energy vehicles, as a core component, the demand for replacing the battery pack is increasing day by day. At present, the replacement of the battery pack is often assisted by a device for replacing the battery pack of a new energy vehicle.

[0003] Traditional battery pack replacement methods often rely on a large amount of manual operations, which not only have a high labor intensity, but also have low replacement efficiency. At the same time, due to the large weight of the battery pack, there are safety risks during the replacement process and it is easy to cause harm to the operators. Summary of the Invention

[0004] The present invention mainly provides a device and a method for replacing a battery pack of a new energy vehicle to solve the technical problems proposed in the above background art.

[0005] The technical solution adopted by the present invention to solve the above technical problems is as follows:

[0006] A device for replacing a battery pack of a new energy vehicle includes a mobile frame, a fork-lift elevator is connected to the upper surface of the mobile frame, and a support mechanism is connected to the top end of the fork-lift elevator;

[0007] The support mechanism includes a support frame connected to the top end of the fork-lift elevator, a through hole provided on the frame body of the support frame, and a conveying and clamping assembly connected to the inner hole of the through hole;

[0008] The conveying and clamping assembly includes power components connected to both sides inside the through hole, and a first conveying roller connected to the execution end of the power components. A driven component is connected between the two power components, and the driven component is connected to a second conveying roller.

[0009] Further, the power component includes a first connecting rod rotatably connected to both ends of the inner hole of the through hole, and the top end of the first connecting rod is connected to the first conveying roller through a first rotating shaft.

[0010] Further, a push block is rotatably connected to the bottom end of the first connecting rod, an electric push rod is connected to one side of the push block, and the electric push rod is connected to the outer surface of the support frame.

[0011] Further, a second rotating shaft is provided between the push block and the first rotating shaft, and the first connecting rod is rotatably connected to the hole wall of the through hole through the second rotating shaft.

[0012] Further, the driven component includes a second connecting rod connected to the first connecting rod, and the second connecting rod is rotatably connected to the second conveying roller through a rotating shaft.

[0013] Further, both ends of the second link rod are connected to adjacent first link rods through a third link rod, and both ends of the third link rod are respectively connected to the first link rod and the second link rod through a rotating shaft.

[0014] Further, first gears arranged coaxially are provided on both sides of the first conveying roller;

[0015] Second gears arranged coaxially are provided on both sides of the second conveying roller.

[0016] Further, a third gear is meshingly connected between adjacent second gears, the third gear is rotationally connected to the second link rod, a fourth gear is meshingly connected between the second gear and an adjacent first gear, and the fourth gear is rotationally connected to the third link rod.

[0017] Further, a motor is connected to the outer surface of one end of the third link rod close to the first conveying roller, a fifth gear is connected to the outer surface of the output shaft of the motor, and the fifth gear meshes with an adjacent first gear.

[0018] According to the technical solution of a new energy vehicle battery pack replacement device as described above, a new energy vehicle battery pack replacement method will also be provided, including the following steps:

[0019] Step 1, move the new energy vehicle battery pack replacement device beside the new energy vehicle with the battery pack to be replaced, and adjust the height of the support mechanism through the fork-lift elevator so that the conveying and clamping assembly is roughly aligned with the position of the battery pack;

[0020] Step 2, place the battery pack between the first conveying roller and the second conveying roller to complete preliminary positioning;

[0021] Step 3, start the electric push rod to lower the second conveying roller on the second link rod; during the lowering process of the second conveying roller, it contacts and clamps the battery pack, and continue to control the electric push rod to extend so that the clamped battery pack is lowered to a suitable position;

[0022] Step 4, the maintenance personnel perform the disassembly operation of the battery pack to remove the old battery pack;

[0023] Step 5, place the new battery pack between the first conveying roller and the second conveying roller, drive the second conveying roller to rise by contracting the electric push rod, and convey the new battery pack to the battery pack installation position of the vehicle to complete the replacement of the battery pack.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] First, the present invention quickly adjusts the height of the support mechanism through a fork-arm elevator to accurately align with the position of the battery pack, reducing the positioning time. The linkage system composed of an electric push rod, a connecting rod, and a conveying roller can efficiently achieve the clamping, lowering, and conveying of the battery pack, greatly improving the overall efficiency of battery pack replacement. Compared with the traditional manual replacement method, the replacement cycle is significantly shortened, the residence time of the vehicle at the repair station is reduced, and the operation efficiency of the repair station is improved.

[0026] Second, during the replacement process of the battery pack of the present invention, it is always firmly clamped by the first conveying roller and the second conveying roller, avoiding the risk of the battery pack falling caused by manual handling and ensuring the personal safety of maintenance personnel.

[0027] The present invention will be explained and described in detail below in conjunction with the drawings and specific embodiments. Description of the Drawings

[0028] Figure 1 is a schematic structural diagram of the present invention;

[0029] Figure 2 is a schematic structural diagram of the support frame and the fork-arm elevator of the present invention;

[0030] Figure 3 is a schematic structural diagram of the conveying and clamping assembly of the present invention;

[0031] Figure 4 is a schematic structural diagram of the power component of the present invention.

[0032] In the figure: 10, moving frame; 20, fork-arm elevator; 30, support mechanism; 31, support frame; 32, through hole; 33, conveying and clamping assembly; 331, power component; 3311, first connecting rod; 3312, first rotating shaft; 3313, pushed block; 3314, electric push rod; 3315, second rotating shaft; 3321, first gear; 3322, second gear; 3323, third gear; 3324, fourth gear; 333, driven component; 3331, second connecting rod; 3332, third connecting rod; 3334, motor; 3335, fifth gear; 334, second conveying roller. Detailed Embodiments

[0033] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0034] It should be noted that when an element is referred to as being "fixedly provided on" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0036] An embodiment of the present application provides a new energy vehicle battery pack replacement device. The schematic diagram of the new energy vehicle battery pack replacement device is as Figures 1-4 shown. The new energy vehicle battery pack replacement device includes a moving frame 10. A fork-lift elevator 20 is connected to the upper surface of the moving frame 10. A support mechanism 30 is connected to the top end of the fork-lift elevator 20;

[0037] The support mechanism 30 includes a support frame 31 connected to the top end of the fork-lift elevator 20, a through hole 32 provided on the frame body of the support frame 31, and a conveying and clamping assembly 33 connected inside the hole body of the through hole 32;

[0038] The conveying and clamping assembly 33 includes power components 331 connected to both sides inside the through hole 32, and a first conveying roller 332 connected to the execution end of the power components 331. A driven component 333 is connected between the two power components 331, and the driven component 333 is connected to a second conveying roller 334.

[0039] It should be noted that in this embodiment, the moving frame 10 bears the entire device, enabling the device to be conveniently moved in different maintenance sites. The fork-lift elevator 20 is installed on the moving frame 10, and the height of the support mechanism 30 is changed by the extension or contraction of its own structure. The support frame 31 of the support mechanism 30 provides an installation carrier for the conveying and clamping assembly 33. After being driven, the power components 331 drive the first conveying roller 332 to rotate. At the same time, the power is transmitted to the second conveying roller 334 through the driven component 333, and the two conveying rollers rotate in cooperation to realize the conveying of the battery pack.

[0040] Optionally, please refer to the appendix Figure 3 and 4 , the power components 331 include first connecting rods 3311 rotatably connected to both ends of the hole body of the through hole 32. The top ends of the first connecting rods 3311 are connected to the first conveying roller 332 through first rotating shafts 3312.

[0041] In this embodiment, the first connecting rod 3311 is rotatably connected to both ends of the through hole 32 of the hole body. When power is applied to the first connecting rod 3311, it rotates around the rotation connection point with the hole body, and drives the first conveying roller 332 connected to the top to rotate synchronously through the first rotating shaft 3312. In the above manner, a simple and reliable connection structure effectively transmits the power to the first conveying roller 332, ensuring the stability and accuracy of the rotation of the conveying roller and ensuring the smoothness of the battery pack conveying process.

[0042] Optionally, please refer to the attached Figure 3 , a pushed block 3313 is rotatably connected to the bottom end of the first connecting rod 3311, and an electric push rod 3314 is connected to one side of the pushed block 3313. The electric push rod 3314 is connected to the outer surface of the support frame 31.

[0043] In this embodiment, the electric push rod 3314 is fixed on the outer surface of the support frame 31, and when it expands and contracts, it pushes the pushed block 3313 to move. The pushed block 3313 is rotatably connected to the bottom end of the first connecting rod 3311, and the movement of the pushed block 3313 changes the inclination angle of the first connecting rod 3311, thereby adjusting the height of the first conveying roller 332. Through the above method, precise electric adjustment of the height of the first conveying roller 332 is achieved, which can quickly adapt to battery packs of different heights, improving the versatility and operation convenience of the device.

[0044] Optionally, please refer to the attached Figure 3 and 4 , a second rotating shaft 3315 is provided between the pushed block 3313 and the first rotating shaft 3312, and the first connecting rod 3311 is rotatably connected to the hole wall of the through hole 32 through the second rotating shaft 3315.

[0045] In this embodiment, the second rotating shaft 3315 connects the first connecting rod 3311 and the hole wall of the through hole 32. When the pushed block 3313 pushes the first connecting rod 3311, the first connecting rod 3311 makes a circular motion around the second rotating shaft 3315, ensuring the smoothness and stability of the movement of the first connecting rod 3311. The second rotating shaft 3315 serves as a rotation fulcrum, enhancing the stability of the first connecting rod 3311 during the rotation process, avoiding shaking, and ensuring the accuracy of the height adjustment of the first conveying roller 332.

[0046] Optionally, please refer to the attached Figure 3 , the driven component 333 includes a second connecting rod 3331 connected to the first connecting rod 3311, and the second connecting rod 3331 is rotatably connected to the second conveying roller 334 through a rotating shaft.

[0047] In this embodiment, when the first connecting rod 3311 rotates, it drives the second connecting rod 3331 to move through the connecting structure. The second connecting rod 3331 is rotatably connected to the second conveying roller 334 through a rotating shaft, and transmits the movement of the first connecting rod 3311 to the second conveying roller 334, causing the second conveying roller 334 to rotate accordingly.

[0048] Optionally, please refer to the appendix Figure 3 , both ends of the second connecting rod 3331 are connected to the adjacent first connecting rod 3311 through a third connecting rod 3332, and both ends of the third connecting rod 3332 are respectively connected to the first connecting rod 3311 and the second connecting rod 3331 through rotating shafts.

[0049] In this embodiment, both ends of the third connecting rod 3332 are respectively connected to the first connecting rod 3311 and the second connecting rod 3331 through rotating shafts. When the first connecting rod 3311 moves, it drives the second connecting rod 3331 to move synchronously through the third connecting rod 3332, so that the movement of the second conveying roller 334 is consistent with that of the first conveying roller 332. The above method enhances the synchronism of the movements of the first conveying roller 332 and the second conveying roller 334, ensures that the battery pack is evenly stressed during the conveying process, and avoids the inclination or damage of the battery pack caused by the non-synchronism of the conveying rollers.

[0050] Optionally, please refer to the appendix Figure 3 , on both sides of the first conveying roller 332, there are first gears 3321 arranged coaxially;

[0051] On both sides of the second conveying roller 334, there are second gears 3322 arranged coaxially.

[0052] In this embodiment, the first gear 3321 is coaxially arranged with the first conveying roller 332, and when the first conveying roller 332 rotates, it drives the first gear 3321 to rotate synchronously. Similarly, the second gear 3322 is coaxially arranged with the second conveying roller 334, and the second conveying roller 334 rotates to drive the second gear 3322 to rotate, providing a power basis for the transmission between the gears. The above method realizes the synchronous association between the rotation of the conveying roller and the rotation of the gear, lays a foundation for subsequent power transmission and coordinated work through gear transmission, and ensures the accuracy and stability of power transmission.

[0053] Optionally, please refer to the appendix Figure 3 , between adjacent second gears 3322, there is a third gear 3323 engaged and connected, the third gear 3323 is rotatably connected to the second connecting rod 3331, between the second gear 3322 and the adjacent first gear 3321, there is a fourth gear 3324 engaged and connected, and the fourth gear 3324 is rotatably connected to the third connecting rod 3332.

[0054] In this embodiment, when the first gear 3321 rotates, it drives the second gear 3322 to rotate through the engaged fourth gear 3324, thereby causing the second conveying roller 334 to rotate. At the same time, adjacent second gears 3322 are interconnected through the third gear 3323 to ensure the consistency of the movement of multiple second conveying rollers 334 and achieve synchronous rotation between the conveying rollers. By using gear meshing transmission, the rotation of each conveying roller is precisely controlled, further enhancing the synchronization and coordination of the movement of the first conveying roller 332 and the second conveying roller 334, and ensuring the smoothness of the battery pack during transportation.

[0055] Optionally, please refer to the attached Figure 3 and 4 At one end of the third connecting rod 3332 close to the first conveying roller 332, a motor 3334 is connected to the outer surface, and a fifth gear 3335 is connected to the outer surface of the output shaft of the motor 3334. The fifth gear 3335 meshes with the adjacent first gear 3321.

[0056] In this embodiment, the motor 3334 is fixed on the third connecting rod 3332. After starting, its output shaft drives the fifth gear 3335 to rotate. The fifth gear 3335 meshes with the adjacent first gear 3321 to transmit the power of the motor 3334 to the first conveying roller 332 and drive the first conveying roller 332 to rotate.

[0057] Based on the same inventive concept, this embodiment also provides a method for replacing a battery pack of a new energy vehicle, including the following steps:

[0058] Step 1: Move the new energy vehicle battery pack replacement device to the side of the new energy vehicle with the battery pack to be replaced. Adjust the height of the support mechanism 30 through the fork arm elevator 20 so that the conveying and clamping assembly 33 is roughly aligned with the position of the battery pack;

[0059] Step 2: Place the battery pack between the first conveying roller 332 and the second conveying roller 334 to complete the preliminary positioning;

[0060] Step 3: Start the electric push rod 3314 to lower the second conveying roller 334 on the second connecting rod 3331; during the descent of the second conveying roller 334, it contacts the battery pack and clamps it. Continue to control the electric push rod 3314 to extend to lower the clamped battery pack to a suitable position;

[0061] Step 4: The maintenance personnel perform the disassembly operation of the battery pack to remove the old battery pack;

[0062] Step 5: Place the new battery pack between the first conveying roller 332 and the second conveying roller 334. Drive the second conveying roller 334 to rise by contracting the electric push rod 3314, and convey the new battery pack to the battery pack installation position of the vehicle to complete the replacement of the battery pack.

[0063] The specific operation method of the present invention is as follows:

[0064] Move the new energy vehicle battery pack replacement device beside the new energy vehicle with the battery pack to be replaced. Adjust the height of the support mechanism 30 through the fork arm type lift 20 so that the conveying and clamping assembly 33 is roughly aligned with the position of the battery pack. At this time, the first conveying roller 332 and the second conveying roller 334 are at the initial height, and the distance between the two is slightly larger than the thickness of the battery pack, so that the battery pack can be smoothly placed between the two.

[0065] Manually or with the help of other auxiliary equipment, place the battery pack between the first conveying roller 332 and the second conveying roller 334, so that the center of gravity of the battery pack is near the center position of the two conveying rollers to complete the preliminary positioning. Start the electric push rod 3314, and the electric push rod 3314 begins to extend. As the electric push rod 3314 extends, it pushes the pushed block 3313 connected to it to move. Since the pushed block 3313 is rotatably connected to the bottom end of the first connecting rod 3311, the movement of the pushed block 3313 causes the first connecting rod 3311 to rotate around the second rotation axis 3315, and the top end of the first connecting rod 3311 begins to descend.

[0066] While the first connecting rod 3311 descends, it pushes the third connecting rod 3332 to move through the connecting structure. The two ends of the third connecting rod 3332 are respectively connected to the first connecting rod 3311 and the second connecting rod 3331 through rotating shafts, so the movement of the third connecting rod 3332 drives the second connecting rod 3331 to descend synchronously. Because the second connecting rod 3331 is rotatably connected to the second conveying roller 334 through a rotating shaft, finally the second conveying roller 334 descends. During the descent of the second conveying roller 334, it gradually approaches the battery pack and contacts the surface of the battery pack. As the second conveying roller 334 continues to descend, the battery pack is subjected to the downward pressure of the second conveying roller 334 and the upward supporting force of the first conveying roller 332, and thus is firmly clamped between the two conveying rollers. At this time, continue to control the electric push rod 3314 to extend, drive the second conveying roller 334 to continue to descend, and then slowly lower the clamped battery pack to the position where it needs to be replaced.

[0067] When the battery pack is lowered to the appropriate position, the motor 3334 is started. The fifth gear 3335 connected to the outer surface of the output shaft of the motor 3334 meshes with the adjacent first gear 3321, driving the first conveying roller 332 to rotate. The first gears 3321 on both sides of the first conveying roller 332 are meshed with the second gears 3322 on both sides of the second conveying roller 334 through the fourth gear 3324, so that the second conveying roller 334 rotates synchronously. The two conveying rollers rotate in the same direction and at the same linear speed, so that the clamped battery pack is smoothly conveyed along the conveying direction, which is convenient for maintenance personnel to perform disassembly operations. After disassembling the old battery pack, the motor 3334 is started in the reverse direction to reverse the conveying roller and convey the new battery pack to the battery pack installation position of the vehicle. After the conveying roller conveys the new battery pack to the battery pack installation position of the vehicle, the maintenance personnel perform the installation operation of the battery pack to ensure that the new battery pack is firmly installed and the electrical connection is normal, and the battery pack is replaced.

[0068] The above is an exemplary description of the present invention in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A new energy vehicle battery pack replacement device, including a mobile rack (10), characterized in that, The upper surface of the moving frame (10) is connected with a fork - arm elevator (20), and the top of the fork - arm elevator (20) is connected with a support mechanism (30); The support mechanism (30) includes a support frame (31) connected to the top of the fork - arm elevator (20), a through - hole (32) provided on the frame body of the support frame (31), and a conveying and clamping assembly (33) connected inside the hole body of the through - hole (32); The conveying and clamping assembly (33) includes power components (331) connected to both sides inside the through - hole (32), and a first conveying roller (332) connected to the execution end of the power components (331). A driven component (333) is connected between the two power components (331), and the driven component (333) is connected to a second conveying roller (334).

2. The new energy vehicle battery pack replacement device according to claim 1, characterized in that, The power component (331) includes a first connecting rod (3311) rotatably connected to both ends of the hole body of the through - hole (32), and the top of the first connecting rod (3311) is connected to the first conveying roller (332) through a first rotating shaft (3312).

3. The new energy vehicle battery pack replacement device according to claim 2, characterized in that, The bottom end of the first connecting rod (3311) is rotatably connected with a pushed - block (3313). One side of the pushed - block (3313) is connected with an electric push - rod (3314), and the electric push - rod (3314) is connected to the outer surface of the support frame (31).

4. The new energy vehicle battery pack replacement device according to claim 3, characterized in that, A second rotating shaft (3315) is provided between the pushed - block (3313) and the first rotating shaft (3312), and the first connecting rod (3311) is rotatably connected to the hole wall of the through - hole (32) through the second rotating shaft (3315).

5. The new energy vehicle battery pack replacement device according to claim 1, characterized in that, The driven component (333) includes a second connecting rod (3331) connected to the first connecting rod (3311), and the second connecting rod (3331) is rotatably connected to the second conveying roller (334) through a rotating shaft.

6. The new energy vehicle battery pack replacement device according to claim 5, characterized in that, Both ends of the second connecting rod (3331) are connected to the adjacent first connecting rod (3311) through a third connecting rod (3332), and both ends of the third connecting rod (3332) are respectively connected to the first connecting rod (3311) and the second connecting rod (3331) through rotating shafts.

7. The new energy vehicle battery pack replacement device according to claim 1, characterized in that, On both sides of the first conveying roller (332), first gears (3321) arranged coaxially are provided; On both sides of the second conveying roller (334), second gears (3322) arranged coaxially are provided.

8. The new energy vehicle battery pack replacement device according to claim 7, wherein A third gear (3323) is meshed and connected between adjacent second gears (3322), and the third gear (3323) is rotatably connected to the second connecting rod (3331). A fourth gear (3324) is meshed and connected between the second gear (3322) and the adjacent first gear (3321), and the fourth gear (3324) is rotatably connected to the third connecting rod (3332).

9. The new energy vehicle battery pack replacement device according to claim 8, characterized in that, On the outer surface of one end of the third connecting rod (3332) close to the first conveying roller (332), a motor (3334) is connected. On the outer surface of the output shaft of the motor (3334), a fifth gear (3335) is connected, and the fifth gear (3335) is meshed with the adjacent first gear (3321).

10. The new energy vehicle battery pack replacement device according to claim 1, characterized in that, Including the following steps: Step 1: Move the new energy vehicle battery pack replacement device beside the new energy vehicle with the battery pack to be replaced, and adjust the height of the support mechanism (30) through the fork arm type lift (20) so that the conveying and clamping assembly (33) is roughly aligned with the position of the battery pack; Step 2: Place the battery pack between the first conveying roller (332) and the second conveying roller (334) to complete the preliminary positioning; Step 3: Start the electric push rod (3314) to lower the second conveying roller (334) on the second connecting rod (3331); during the descent of the second conveying roller (334), it contacts the battery pack and clamps it, and continue to control the electric push rod (3314) to extend to lower the clamped battery pack to a suitable position; Step 4: The maintenance personnel perform the disassembly operation of the battery pack to remove the old battery pack; Step 5: Place the new battery pack between the first conveying roller (332) and the second conveying roller (334), and drive the second conveying roller (334) to rise by contracting the electric push rod (3314) to convey the new battery pack to the battery pack installation position of the vehicle to complete the replacement of the battery pack.

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