Stacking equipment and battery replacing station

Abstract

The stacking equipment comprises a supporting frame and a transferring arm arranged on the supporting frame, the transferring arm can stretch out and draw back relative to the supporting frame to transfer a battery pack, the stacking equipment further comprises a lifting device arranged on the supporting frame, the lifting device comprises a driving part, a transmission part and a bearing disc, the transmission part is provided with a supporting part for supporting the bearing disc, and the supporting part is provided with a lifting device. The driving piece can drive the transmission piece to rotate so as to drive the supporting part to vertically move, the bearing disc synchronously vertically moves along with the displacement of the supporting part so as to be switched between the bearing position higher than the transfer arm and the original position lower than the transfer arm, and therefore the battery pack can be transferred to the bearing disc or the transfer arm. According to the lifting device, the conveying stroke of the transfer arm can be increased, the applicability of the transfer arm to battery packs with different conveying stroke requirements is achieved, and the battery replacing requirements of battery replacing vehicles with different battery pack sizes are met.

Description

Technical Field

[0001] This application belongs to the technical field of battery pack replacement equipment, specifically relating to a palletizing device and a battery swapping station. Background Technology

[0002] In the rapid battery swapping process for electric vehicles, the battery pack to be charged needs to be removed and placed on the charging rack, while the already charged battery pack is then replaced on the electric vehicle. At this point, palletizing equipment is needed to place the battery pack to be charged, removed from the battery swapping mobile platform, onto the charging rack, while the replacement battery pack is removed from the charging rack and placed on the battery swapping mobile platform. The palletizing equipment uses a transfer arm to pick up and place the battery packs during transport, and the working stroke of the transfer arm determines the transport distance. Early battery swapping stations, designed for smaller battery packs with lower capacities, often had shorter transport paths. However, with advancements in battery pack manufacturing and the increasing demand for longer driving ranges in new energy vehicles, battery packs are becoming larger, requiring more battery packs to be swapped. This necessitates a longer transport stroke from the transfer arm, rendering existing palletizing equipment inadequate for the required transport distance. Currently, the common approach is to rebuild battery swapping stations. As battery packs become larger, existing palletizing equipment needs to be replaced with larger equipment. However, the existing battery swapping stations are relatively compact and cannot accommodate larger palletizing equipment, thus requiring the construction of new stations. This significantly increases the construction and operating costs of existing stations and also reduces the frequency of use of existing stations, wasting battery swapping capacity. Utility Model Content

[0003] This application provides a palletizing device and a battery swapping station to solve the technical problem of battery swapping difficulties caused by insufficient transport distance of battery packs in traditional palletizing devices.

[0004] The technical solution adopted in this application is as follows:

[0005] A palletizing device includes a support frame and a transfer arm disposed on the support frame. The transfer arm is retractable relative to the support frame to transfer a battery pack. It also includes a lifting device disposed on the support frame. The lifting device includes a drive member, a transmission member, and a support tray. The transmission member has a support portion supporting the support tray. The drive member is capable of driving the transmission member to rotate, causing the support portion to undergo vertical displacement. The support tray undergoes vertical displacement synchronously with the displacement of the support portion, switching between a support position higher than the transfer arm and a position lower than the original position of the transfer arm, thereby allowing the battery pack to be transferred onto the support tray or the transfer arm.

[0006] The palletizing equipment of this application is equipped with a lifting device. During the transfer of battery packs, when the travel of the transfer arm is insufficient to deliver the battery pack to the preset position, the transfer arm can first transport the battery pack for a partial distance. When the transfer arm reaches its maximum travel and can no longer transport the battery pack, the drive unit operates, driving the transmission component to rotate, causing the support part of the supporting pallet to gradually rise, and the pallet also rises continuously. When the pallet reaches the support position, the battery pack separates from the transfer arm under the support of the pallet. At this time, the transfer arm retracts, and the drive unit controls the pallet to descend to its original position. During the movement of the pallet from the support position to the original position, the battery pack will fall onto the transfer arm. In this way, the transfer arm has a certain transport travel to transfer the battery pack. That is, the lifting device of this application can increase the transport travel of the transfer arm, realize the applicability of the transfer arm to battery packs with different transport travel requirements, and meet the battery swapping needs of battery swapping vehicles with different battery pack sizes.

[0007] The palletizing equipment described in this application also includes the following additional technical features:

[0008] The driving component and the transmission component are disposed below or on the side of the support tray. The bottom of the support tray has a downwardly extending connecting portion, and the support portion is connected to the connecting portion.

[0009] By placing the drive and transmission components below or to the side of the support tray, interference between the drive and transmission components and the battery pack can be avoided when the support tray is lifting the battery pack. This effectively ensures the support stability of the battery pack and the working stability of the drive and transmission components. In addition, the downward-extending connection part of the support tray helps to improve the support stability of the support part on the support tray, while reducing the connection difficulty between the transmission component and the support tray, which helps to improve the smoothness of the support tray's movement.

[0010] The transmission component includes a transmission shaft connected to the driving component and an eccentric wheel connected to the transmission shaft. The support portion is located at the distal end of the eccentric wheel. The driving component drives the transmission shaft to rotate, thereby causing the distal end of the eccentric wheel to rotate and thus causing the support portion to undergo vertical displacement.

[0011] The drive unit only needs to rotate the drive shaft to achieve the cyclic rotation of the eccentric wheel, thereby driving the support part located at the distal end of the eccentric wheel to move back and forth. One complete rotation cycle of the eccentric wheel can drive the pallet to complete one cycle between the original position and the supported position, which greatly improves the efficiency of the drive unit in driving the pallet. This significantly reduces the time required for the pallet to lift the battery pack for the transfer arm to retract, and for the pallet to lower the battery pack onto the transfer arm after the transfer arm has retracted, greatly increasing the battery pack transfer rate. When the palletizing equipment is used to replace battery packs in battery swapping equipment, it significantly reduces the waiting time for vehicle owners to swap batteries, helping to improve the user's battery swapping experience.

[0012] The eccentric wheel is provided with a rotating wheel at the position corresponding to the support part, and the connecting part is provided with a groove adapted to the rotating wheel. The rotating wheel extends outward from the side of the eccentric wheel to insert into the groove, so that the rotating wheel rolls synchronously in the groove as the eccentric wheel rotates and drives the support tray to undergo vertical displacement.

[0013] When the drive component moves the pallet from its original position to its supporting position via the linkage, it drives the transmission shaft to rotate the eccentric wheel. During this rotation, the eccentric wheel moves along the groove and rolls from one end of the groove to the other. Conversely, when the drive component moves the pallet from its supporting position to its original position via the linkage, it drives the transmission shaft to reverse the rotation of the eccentric wheel. During this rotation, the eccentric wheel moves along the groove and rolls from one end of the groove to the other. This design significantly reduces the frictional resistance between the eccentric wheel and the pallet during the upward or downward movement of the pallet, allowing the drive component to more smoothly support the pallet as it switches between its original and supporting positions, further improving the transfer efficiency of the palletizing equipment.

[0014] Along the length or width of the support frame, the connecting part is provided on both sides of the support tray, the groove is provided on the inner side of the connecting part, and the two ends of the drive shaft are connected to the eccentric wheel, and the rotating wheel on the two eccentric wheel respectively cooperates with the two grooves.

[0015] Connecting parts are provided on both sides of the pallet, allowing the eccentric wheels to provide dual-point support to the pallet through the grooves on the two connecting parts. This reduces the probability of the pallet tipping over due to uneven load distribution, thereby improving the stability of the pallet during movement. In addition, the two eccentric wheels are located at both ends of the drive shaft, enabling the drive component to drive the two eccentric wheels through a single drive shaft. This optimizes the structural design of the lifting device and makes the structural layout of the lifting device more compact, which helps to miniaturize the lifting device.

[0016] Along the width or length direction of the support frame, each of the connecting parts is provided with two grooves. The transmission component also includes a first gear, a second gear, and a chain connecting the first gear and the second gear. The positions of the first gear and the second gear correspond to the positions of the two grooves on the same connecting part, and the first gear is disposed at both ends of the transmission shaft near the inner side of the eccentric wheel. The second gear is disposed on a connecting shaft parallel to the transmission shaft, and the end of the connecting shaft is provided with an eccentric wheel that cooperates with the groove away from the transmission shaft.

[0017] Each connecting part is equipped with two grooves, and a corresponding eccentric wheel is set at each groove. On the one hand, this further increases the number of support parts, achieving more even support for the pallet, allowing the pallet to switch more stably between its original position and the supported position, thus further improving the support stability of the battery pack. On the other hand, by setting a connecting shaft parallel to the drive shaft, and relying on the first gear, the second gear, and the chain connecting the two to achieve synchronous rotation of the drive shaft and the connecting shaft, synchronous drive of the drive component to the drive shaft and the connecting shaft is achieved. This eliminates the need to set a separate drive component for the eccentric wheel at the second gear, which helps to reduce the manufacturing cost of the lifting device and also helps to optimize the structural design of the lifting device. Moreover, using the first gear, the second gear, and the chain to achieve synchronous transmission between the connecting shaft and the drive shaft helps to improve the consistency of the drive speed of the eccentric wheels at the two grooves, reducing the probability of inconsistent support height of the pallet caused by inconsistent rotation of the two eccentric wheels, further ensuring the support stability of the pallet.

[0018] The lifting device also includes a mounting base with a through hole for the drive shaft and / or the connecting shaft to pass through.

[0019] By setting up the mounting base, the drive shaft and / or connecting shaft are fixed. When the eccentric wheel supports the pallet back and forth between the original position and the supporting position, the force it bears will be fed back to the drive shaft and / or connecting shaft. This can easily cause the drive shaft and / or connecting shaft to deviate and shift in the cantilever state. By setting up the mounting base, the drive shaft and / or connecting shaft can be limited and fixed, preventing the drive shaft and / or connecting shaft from deforming and shifting under the eccentric force fed back by the eccentric wheel, thus ensuring the working stability of the lifting device.

[0020] There are two transfer arms, which are spaced apart along the length or width of the support frame, and the lifting device is located between the two transfer arms.

[0021] Setting the number of transfer arms to two can improve the stability of the transfer arms in supporting the battery pack; and placing the lifting device between the two transfer arms can also improve the stability of the pallet in supporting the battery pack, reduce the probability of the battery pack falling off the pallet due to imbalance caused by the force applied to the pallet, and provide stability guarantee for the transfer of the palletizing equipment.

[0022] One of the support frame and the pallet is equipped with a vertically extending guide post, and the other is equipped with a guide sleeve adapted to the guide post. The guide post passes through the guide sleeve to guide the pallet to move vertically.

[0023] By setting guide posts and guide sleeves, the switching between the original position and the support position of the pallet can be guided, so that the pallet moves along the extension direction of the guide sleeve, avoiding movement deviation during the movement of the pallet. This helps to improve the support stability of the pallet for the battery pack and prevents the battery pack from falling due to uneven application of support force from the pallet.

[0024] The bottom wall of the support tray is equipped with a positioning plate, the guide post is installed on the positioning plate, and the guide sleeve is installed on the support frame. When the support part is in the original position, the positioning plate abuts against the top wall of the guide sleeve.

[0025] By setting a positioning plate, an installation position is provided for the guide column. At the same time, when the pallet descends from the supporting position to the original position, the top wall of the guide sleeve abuts against the positioning plate. That is, the guide sleeve provides a certain abutment support for the pallet through the positioning plate, which increases the contact area between the guide sleeve and the pallet and avoids the possibility of stress concentration at the contact point between the guide sleeve and the pallet.

[0026] The number of guide sleeves and guide posts is multiple, and the multiple guide sleeves and guide posts are arranged at intervals at the bottom of the support tray.

[0027] By setting multiple guide sleeves and multiple guide posts, the multiple guide sleeves and multiple guide posts work together to guide the movement of the pallet, reducing the possibility of movement deviation in some areas caused by the load-bearing deviation of the pallet, and further improving the support stability of the pallet.

[0028] The support tray includes a first tray and a second tray arranged at intervals along the length or width of the support frame. The driving member and the transmission member are located between the first tray and the second tray, and the transmission member is connected to the first tray and the second tray respectively.

[0029] By arranging the support tray into two spaced-apart discs, the stability of the support tray for the battery pack is increased. The spaced arrangement of the first and second discs also provides installation space for the drive and transmission components in between. During the assembly of the lifting device, the first and second discs will not interfere with the installation of the drive and transmission components, thus improving the assembly speed of the lifting device and facilitating subsequent maintenance and replacement of the drive and transmission components. Furthermore, the arrangement of the first and second discs, while ensuring the stability of the battery pack, reduces the volume and overall weight of the support tray, helping to reduce the load on the lifting mechanism and lower the manufacturing cost of the support tray.

[0030] This application also provides a battery swapping station, including a charging rack and a palletizing device as described above.

[0031] The battery swapping station proposed in this application has good adaptability to battery packs of different sizes and with different transport mileage requirements, and can well meet the battery swapping needs of battery swapping vehicles.

[0032] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0033] 1. The palletizing equipment of this application is equipped with a lifting device. During the transfer of battery packs, when the travel of the transfer arm is insufficient to deliver the battery pack to the preset position, the transfer arm can first transport the battery pack for a partial distance. When the transfer arm reaches its maximum travel and can no longer transport the battery pack, the drive unit operates, driving the transmission component to rotate, causing the support part of the supporting pallet to gradually rise, and the pallet also rises continuously. When the pallet reaches the support position, the battery pack separates from the transfer arm under the support of the pallet. At this time, the transfer arm retracts, and the drive unit controls the pallet to descend to its original position. During the movement of the pallet from the support position to the original position, the battery pack will fall onto the transfer arm. In this way, the transfer arm has a certain transport travel to transfer the battery pack. That is, the lifting device of this application can increase the transport travel of the transfer arm, realize the applicability of the transfer arm to battery packs with different transport travel requirements, and meet the battery swapping needs of battery swapping vehicles with different battery pack sizes.

[0034] 2. As a preferred embodiment of this application, the drive component and transmission component are disposed below or to the side of the support tray, which can avoid mutual interference between the drive component, transmission component and battery pack when the support tray is lifting the battery pack, effectively ensuring the support stability of the battery pack and the working stability of the drive component and transmission component; in addition, the downwardly extending connecting part of the support tray helps to improve the support stability of the support component on the support tray, while reducing the connection difficulty between the transmission component and the support tray, which helps to improve the smoothness of the movement of the support tray. Attached Figure Description

[0035] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0036] Figure 1 This is a schematic diagram of the lifting device according to one embodiment of this application. Figure 1 ;

[0037] Figure 2 for Figure 1 Enlarged view of part A;

[0038] Figure 3 This is a schematic diagram of the lifting device according to one embodiment of this application. Figure 2 ;

[0039] Figure 4 This is a side view of a portion of the lifting device structure according to one embodiment of this application;

[0040] Figure 5 This is a schematic diagram of the structure of a palletizing device according to one embodiment of this application.

[0041] in:

[0042] 1. Drive components;

[0043] 2. Transmission components, 21. Transmission shaft, 22. Eccentric wheel, 23. First gear, 24. Second gear, 25. Chain, 26. Connecting shaft;

[0044] 3. Supporting tray; 31. Connecting part; 32. Groove; 33. Positioning plate; 34. First plate body; 35. Second plate body;

[0045] 4. Support section;

[0046] 5 rotating wheels;

[0047] 6 mounting bases, 61 through holes;

[0048] 7 guide pillars;

[0049] 8 guide sleeves;

[0050] 9. Support frame;

[0051] 10 transfer arms. Detailed Implementation

[0052] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0053] Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below. It should be noted that, unless otherwise specified, the embodiments of this application and the features thereof can be combined with each other.

[0054] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0055] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0056] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0057] like Figure 1 , Figure 5As shown, a palletizing device includes a support frame 9 and a transfer arm 10 disposed on the support frame 9. The transfer arm 10 is retractable relative to the support frame 9 to transfer battery packs. It also includes a lifting device disposed on the support frame 9. The lifting device includes a drive member 1, a transmission member 2, and a support tray 3. The transmission member 2 has a support portion 4 that supports the support tray 3. The drive member 1 can drive the transmission member 2 to rotate so as to cause the support portion 4 to undergo vertical displacement. The support tray 3 undergoes vertical displacement synchronously with the displacement of the support portion 4 to switch between a support position higher than the transfer arm 10 and a position lower than the original position of the transfer arm 10, so that the battery pack can be transferred to the support tray 3 or the transfer arm 10.

[0058] The palletizing equipment of this application is equipped with a lifting device. During the transfer of battery packs, when the travel of the transfer arm 10 is insufficient to deliver the battery pack to the preset position, the transfer arm 10 can first transport the battery pack for a partial distance. When the transfer arm 10 reaches its maximum travel and can no longer transport the battery pack, the drive component 1 operates, driving the transmission component 2 to rotate, causing the support part 4 of the supporting pallet 3 to gradually rise, and the pallet 3 to rise accordingly. When the pallet 3 reaches the supporting position, the battery pack separates from the transfer arm 10 under the support of the pallet 3. At this time, the transfer arm 10 retracts, and the drive component 1 controls the pallet 3 to descend to its original position. During the movement of the pallet 3 from the supporting position to the original position, the battery pack will fall onto the transfer arm 10. In this way, the transfer arm 10 again has a certain transport travel to transfer the battery pack. That is, the lifting device of this application can increase the transport travel of the transfer arm 10, realize the applicability of the transfer arm 10 to battery packs with different transport travel requirements, and meet the battery swapping needs of battery swapping vehicles with different battery pack sizes.

[0059] As a preferred embodiment of this application, such as Figure 1 As shown, the drive component 1 and the transmission component 2 are located below or to the side of the support tray 3. The bottom of the support tray 3 has a downwardly extending connecting portion 31, and the support portion 4 is connected to the connecting portion 31. Positioning the drive component 1 and the transmission component 2 below or to the side of the support tray 3 avoids interference between the drive component 1, the transmission component 2, and the battery pack during battery pack lifting, effectively ensuring the stability of the battery pack support and the operational stability of the drive component 1 and the transmission component 2. Furthermore, the downwardly extending connecting portion 31 of the support tray 3 helps improve the support stability of the support portion 4 on the support tray 3, while reducing the difficulty of connecting the transmission component 2 to the support tray 3, thus improving the smoothness of the movement of the support tray 3.

[0060] Preferably, the tray 3 has a support surface for supporting the battery pack, and the connecting part 31 extends downward from the edge of the support surface, that is, the connection point between the support part 4 and the connecting part 31 is located on the side below the support surface.

[0061] As a preferred embodiment of this implementation, such as Figure 1 , Figure 2 As shown, the transmission component 2 includes a transmission shaft 21 connected to the drive component 1 and an eccentric wheel 22 connected to the transmission shaft 21. The support part 4 is located at the distal end of the eccentric wheel 22. The drive component 1 drives the transmission shaft 21 to rotate, thereby causing the distal end of the eccentric wheel 22 to rotate and thus causing the support part 4 to undergo vertical displacement. The drive component 1 only needs to drive the transmission shaft 21 to rotate to realize the cyclic rotation of the eccentric wheel 22, thereby driving the support part 4 located at the distal end of the eccentric wheel 22 to move up and down reciprocally. One complete rotation cycle of the eccentric wheel 22 can drive the support tray 3 to complete one cycle between the original position and the support position, which greatly improves the movement efficiency of the drive component 1 driving the support tray 3. This significantly shortens the time required for the support tray 3 to lift the battery pack for the transfer arm 10 to retract and for the support tray 3 to lower the battery pack onto the transfer arm 10 after the transfer arm 10 has retracted, greatly increasing the transfer rate of the battery pack. When palletizing equipment is used to replace battery packs in battery swapping equipment, it significantly reduces the battery swapping time required for vehicle owners, thus improving the user's battery swapping experience. It should be noted that the support portion 4 mentioned in this embodiment as being located at the distal end of the eccentric wheel 22 does not mean that the support portion 4 must be located at the distal end of the eccentric wheel 22; it can also be located at a certain distance from the distal end of the eccentric wheel 22.

[0062] Preferably, the driving component 1 includes a drive motor and a reducer. The output end of the reducer and the transmission shaft 21 are respectively provided with meshing transmission gears. The drive motor drives the transmission gears to rotate through the reducer, which in turn drives the transmission shaft 21 to rotate, thereby driving the eccentric wheel 22 to rotate. Of course, this embodiment does not limit the type and form of the driving component 1, and it can also be configured as a driving component 1 composed of a drive cylinder and a reducer.

[0063] As a preferred example in this embodiment, such as Figure 2 As shown, a rotating wheel 5 is provided on the eccentric wheel 22 at the position corresponding to the support part 4. The connecting part 31 is provided with a groove 32 that is adapted to the rotating wheel 5. The rotating wheel 5 extends outward from the side of the eccentric wheel 22 to insert into the groove 32, so that the rotating wheel 5 rolls synchronously in the groove 32 as the eccentric wheel 22 rotates and drives the support tray 3 to undergo vertical displacement.

[0064] When the drive component 1 moves the pallet 3 from its original position to its supporting position via the linkage, the drive component 1 drives the transmission shaft 21 to rotate the eccentric wheel 22. During the rotation of the eccentric wheel 22, the rotating wheel 5 moves along the groove 32 and rolls from one end of the groove 32 to the other. Conversely, when the drive component 1 moves the pallet 3 from its supporting position to its original position via the linkage, the drive component 1 drives the transmission shaft 21 to reverse the rotation of the eccentric wheel 22. During the rotation of the eccentric wheel 22, the rotating wheel 5 moves along the groove 32 and rolls from the other end of the groove 32 back to the initial position. The design of the transmission wheel significantly reduces the frictional resistance between the eccentric wheel 22 and the pallet 3 during the upward or downward movement of the pallet 3, allowing the drive component 2 to more smoothly support the pallet 3 in switching between its original and supporting positions, further improving the transfer efficiency of the palletizing equipment.

[0065] Preferably, the distal end of the eccentric wheel 22 is provided with an insertion hole, and the rotating wheel 5 includes an insertion shaft and a wheel body that can rotate around the insertion shaft. The insertion shaft is inserted into the insertion hole and fixedly connected to the eccentric wheel 22.

[0066] As a preferred method in this example, such as Figure 1 As shown, along the length or width of the support frame 9, both sides of the support tray 3 are provided with connecting parts 31, and grooves 32 are provided on the inner side of the connecting parts 31. Both ends of the drive shaft 21 are connected with eccentric wheels 22, and the rotating wheels 5 on the two eccentric wheels 22 respectively cooperate with the two grooves 32.

[0067] Connecting parts 31 are provided on both sides of the support tray 3, so that the eccentric wheel 22 can provide dual-point support for the support tray 3 through the grooves 32 on the two connecting parts 31, reducing the probability of the support tray 3 overturning due to uneven load on the support tray 3, thereby improving the stability of the support tray 3 during movement; in addition, the two eccentric wheels 22 are located at both ends of the transmission shaft 21, realizing that the drive component 1 drives the two eccentric wheels 22 through a single transmission shaft 21, optimizing the structural design of the lifting device, and making the structural layout of the lifting device more compact, which helps to miniaturize the lifting device.

[0068] Preferably, the groove 32 is located at the middle position of the side of the support tray 3.

[0069] Furthermore, such as Figure 3As shown, along the width or length direction of the support frame 9, each connecting part 31 is provided with two grooves 32. The transmission component 2 also includes a first gear 23, a second gear 24, and a chain 25 connecting the first gear 23 and the second gear 24. The positions of the first gear 23 and the second gear 24 correspond to the positions of the two grooves 32 on the same connecting part 31, and the first gear 23 is located at both ends of the transmission shaft 21 near the inner side of the eccentric wheel 22. The second gear 24 is located on the connecting shaft 26 which is parallel to the transmission shaft 21, and the end of the connecting shaft 26 is provided with an eccentric wheel 22 that cooperates with the groove 32 away from the transmission shaft 21.

[0070] Each connecting part 31 is provided with two grooves 32, and a corresponding eccentric wheel 22 is provided at each groove 32. On the one hand, this further increases the number of support parts 4, so as to achieve more uniform support for the support tray 3, and make the support tray 3 more stable in switching between the original position and the support position, thereby further improving the support stability of the battery pack. On the other hand, by setting a connecting shaft 26 parallel to the drive shaft 21, and relying on the first gear 23, the second gear 24 and the chain 25 connecting the two to achieve synchronous rotation of the drive shaft 21 driving the connecting shaft 26, the synchronous drive of the drive component 1 on the drive shaft 21 and the connecting shaft 26 is realized, which eliminates the need to set a separate drive component for the eccentric wheel 22 at the second gear 24, which helps to reduce the manufacturing cost of the lifting device and also helps to optimize the structural design of the lifting device. Moreover, using the first gear 23, the second gear 24, and the chain 25 to synchronously drive the connecting shaft 26 and the transmission shaft 21 helps to improve the consistency of the driving speed of the eccentric wheels 22 at the two grooves 32, reduces the probability of inconsistent support height of the support tray 3 caused by inconsistent rotation of the two eccentric wheels 22, and further ensures the support stability of the support tray 3.

[0071] Preferably, the grooves 32 on each connecting part 31 are located at both ends of the extending direction of the connecting part 31. This increases the support stability of the eccentric wheel 22 on the connecting part 31 and prevents the support tray 3 from overturning due to uneven load.

[0072] Furthermore, such as Figure 3 As shown, the mounting base 6 has a through hole 61 for the drive shaft 21 to pass through; the mounting base 6 can also be used for the connecting shaft 26 to pass through; or the mounting base 6 can be provided at the drive shaft 21 and the connecting shaft 26 respectively, so that the drive shaft 21 and the connecting shaft 26 can pass through respectively.

[0073] By setting the mounting base 6, the drive shaft 21 and the connecting shaft 26 are fixed. When the eccentric wheel 22 supports the pallet 3 and switches back and forth between the original position and the supporting position, the force it bears will be fed back to the drive shaft 21 and the connecting shaft 26. This can easily cause the drive shaft 21 and the connecting shaft 26 to deflect and shift in the cantilever state. However, by setting the mounting base 6, the drive shaft 21 and the connecting shaft 26 can be limited and fixed, preventing the drive shaft 21 and the connecting shaft 26 from deforming and shifting under the eccentric force fed back by the eccentric wheel 22, thus ensuring the working stability of the lifting device.

[0074] In addition, the mounting base 6 can also provide some support for the connecting shaft 26 and the transmission shaft 21, so that the connecting shaft 26 and the transmission shaft 21 can reduce the probability of downward deformation under the joint support of the mounting base 6 and the driving component 1.

[0075] Preferably, the mounting base 6 is mounted on the support frame 9.

[0076] As a preferred embodiment of this application, such as Figure 5 As shown, there are two transfer arms 10, which are spaced apart along the length or width of the support frame, and the lifting device is located between the two transfer arms 10.

[0077] Setting the number of transfer arms 10 to two can improve the support stability of the transfer arms 10 for the battery pack; and placing the lifting device between the two transfer arms 10 can also improve the support stability of the pallet 3 for the battery pack, reduce the probability of the battery pack falling off the pallet 3 due to force deviation of the pallet 3, and provide stability guarantee for the transfer of the palletizing equipment.

[0078] This application does not limit the number or structure of the transfer arms 10. In another embodiment, the transfer arms 10 may also be ring-shaped with a clearance area in the middle for the pallet 3 to move up and down.

[0079] As a preferred embodiment of this application, such as Figure 3 , Figure 4 As shown, one of the support frame 9 and the pallet 3 is equipped with a vertically extending guide post 7, and the other is equipped with a guide sleeve 8 adapted to the guide post 7. The guide post 7 passes through the guide sleeve 8 to guide the pallet 3 to move vertically. By setting the guide post 7 and the guide sleeve 8, the switching between the original position and the supporting position of the pallet 3 can be guided, so that the pallet 3 moves along the extension direction of the guide sleeve 8, avoiding movement deviation of the pallet 3 during movement, which helps to improve the supporting stability of the battery pack by the pallet 3, and avoids the phenomenon of the battery pack falling due to uneven application of the supporting force of the pallet 3.

[0080] As a preferred embodiment of this implementation, such as Figure 4 As shown, the bottom wall of the support tray 3 is equipped with a positioning plate 33, the guide post 7 is installed on the positioning plate 33, and the guide sleeve 8 is installed on the support frame 9. When the support part 4 is in its original position, the positioning plate 33 abuts against the top wall of the guide sleeve 8. By setting the positioning plate 33, an installation position is provided for the guide post 7. At the same time, when the support tray 3 descends from the supporting position to the original position, the top wall of the guide sleeve 8 abuts against the positioning plate 33. That is, the guide sleeve 8 provides a certain abutment and support for the support tray 3 through the positioning plate 33, increasing the contact area between the guide sleeve 8 and the support tray 3 and avoiding the possibility of stress concentration at the contact point between the guide sleeve 8 and the support tray 3.

[0081] As another preferred embodiment of this implementation, such as Figure 3 As shown, there are multiple guide sleeves 8 and guide posts 7, which are spaced apart at the bottom of the support tray 3. By setting multiple guide sleeves 8 and multiple guide posts 7, the multiple guide sleeves 8 and multiple guide posts 7 cooperate to guide the movement of the support tray 3, reducing the possibility of movement deviation in some areas caused by the load-bearing deviation of the support tray 3, and further improving the support stability of the support tray 3.

[0082] Preferably, the guide sleeve 8 is a linear bearing mounted on the support frame 9.

[0083] As a preferred embodiment of this application, such as Figure 5 As shown, the support tray 3 can be configured as a plate structure, with the drive component 1 and transmission component 2 located below the plate structure. This allows the support tray 3 to separate the drive component 1 and transmission component 2 from the battery pack and other components located above the support tray, thereby providing a certain degree of protection for the drive component 1 and transmission component 2.

[0084] As another preferred embodiment of this application, such as Figure 1 , Figure 3 As shown, the pallet 3 includes a first pallet 34 and a second pallet 35 arranged at intervals along the length or width of the support frame 9. The drive member 1 and the transmission member 2 are located between the first pallet 34 and the second pallet 35, and the transmission member 2 is connected to the first pallet 34 and the second pallet 35 respectively.

[0085] By arranging the support tray 3 into a first disc 34 and a second disc 35 spaced apart, the stability of the support tray 3 in supporting the battery pack is increased. Simultaneously, the spaced arrangement of the first disc 34 and the second disc 35 provides installation space for the drive component 1 and the transmission component 2 between them. During the assembly of the lifting device, the first disc 34 and the second disc 35 will not spatially interfere with the installation of the drive component 1 and the transmission component 2, which helps to improve the assembly speed of the lifting device and also facilitates subsequent maintenance and replacement of the drive component 1 and the transmission component 2. Furthermore, the arrangement of the first disc 34 and the second disc 34, while ensuring the stability of the battery pack, reduces the volume and total weight of the support tray 3, helping to reduce the load-bearing pressure on the lifting mechanism and lowering the manufacturing cost of the support tray 3.

[0086] This application does not limit the structure and quantity of the pallet 3. In another embodiment, the pallet 3 is in the shape of a disc or a square disc, the drive device and transmission component 2 are located below the pallet 3, and the support part 4 is located below the pallet 3.

[0087] This application also provides a battery swapping station, including a charging rack and the palletizing equipment described above. The battery swapping station of this application has good adaptability to battery packs of different sizes and with different transport mileage requirements, and can better meet the battery swapping needs of battery swapping vehicles.

[0088] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0089] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0090] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A palletizing device, comprising a support frame and a transfer arm provided on the support frame, the transfer arm being capable of telescoping relative to the support frame to transfer a battery pack, characterized in that, Further comprising a lifting device arranged on the support frame, the lifting device comprising a driving member, a transmission member and a supporting tray, the transmission member having a supporting portion supporting the supporting tray, the driving member being capable of driving the transmission member to rotate so as to drive the supporting portion to vertically displace, the supporting tray being synchronously vertically displaced with the supporting portion to switch between a supporting position higher than the transfer arm and an original position lower than the transfer arm, so that the battery pack can be transferred to the supporting tray or the transfer arm.

2. The palletizing device according to claim 1, characterized in that, the driving member and the transmission member are arranged below or on the side of the supporting tray, the bottom of the supporting tray is provided with a downwardly extending connecting portion, and the supporting portion is connected to the connecting portion.

3. The palletizing device according to claim 2, characterized in that, the transmission member comprises a transmission shaft connected to the driving member and an eccentric wheel connected to the transmission shaft, the supporting portion is located at the far end of the eccentric wheel, and the driving member drives the transmission shaft to rotate so as to drive the far end of the eccentric wheel to rotate, thereby causing the supporting portion to vertically displace.

4. The palletizing device according to claim 3, characterized in that, the eccentric wheel is provided with a rotating wheel at a position corresponding to the supporting portion, the connecting portion is provided with a groove adapted to the rotating wheel, and the rotating wheel extends outwardly from the side of the eccentric wheel to be inserted into the groove, so that the rotating wheel synchronously rolls in the groove with the rotation of the eccentric wheel and drives the supporting tray to vertically displace.

5. The palletizing device according to claim 4, characterized in that, along the length direction or the width direction of the support frame, the connecting portion is arranged on both sides of the supporting tray, the groove is arranged on the inner side of the connecting portion, and the transmission shaft is connected with the eccentric wheel at both ends, and the rotating wheels on the two eccentric wheels are respectively matched with the two grooves.

6. The palletizing device according to claim 5, characterized in that, along the width direction or the length direction of the support frame, each connecting portion is provided with two grooves, and the transmission member further comprises a first gear, a second gear and a chain connecting the first gear and the second gear, the positions of the first gear and the second gear respectively correspond to the positions of the two grooves on the same connecting portion, the first gear is arranged on the inner side of the eccentric wheel at both ends of the transmission shaft, the second gear is arranged on a connecting shaft arranged in parallel with the transmission shaft, and the end of the connecting shaft is provided with the eccentric wheel matched with the groove away from the transmission shaft.

7. The palletizing device according to claim 6, characterized in that, the lifting device further comprises a mounting seat, and the mounting seat is provided with a through hole for the transmission shaft and / or the connecting shaft to pass through.

8. The palletizing device according to claim 1, characterized in that, the transfer arm is provided with two, which are arranged at intervals along the length direction or the width direction of the support frame, and the lifting device is arranged between the two transfer arms.

9. The palletizing device according to claim 1, wherein, one of the support frame and the support tray is provided with vertically extending guide posts, and the other is provided with guide sleeves adapted to the guide posts, the guide posts being arranged to pass through the guide sleeves to guide vertical movement of the support tray.

10. The palletizing device according to claim 9, wherein, the bottom wall of the support tray is provided with a positioning disc, the guide posts are arranged on the positioning disc, and the guide sleeves are arranged on the support frame, the positioning disc abutting against the top wall of the guide sleeves when the support part is in the original position.

11. The palletizing device according to claim 9, wherein, a plurality of the guide sleeves and the guide posts are arranged at intervals on the bottom of the support tray.

12. The palletizing apparatus of claim 1, wherein, the support tray comprises a first tray body and a second tray body arranged at intervals along the length direction or the width direction of the support frame, the driving member and the transmission member are arranged between the first tray body and the second tray body, and the transmission member is connected to the first tray body and the second tray body respectively.

13. A battery swap station comprising a charging rack, characterized in that, Also included is the palletizing device according to any one of claims 1 to 12.

Images