Wheel positioning device and lifting machine

Abstract

The wheel positioning device is arranged on a vehicle carrying platform of a battery replacing station and used for adjusting the position of a battery replacing vehicle, and the wheel positioning device comprises a base, a positioning mechanism installed on the base and a first driving mechanism connected with the positioning mechanism. The positioning mechanism comprises two sets of V-shaped positioning parts symmetrically arranged on the two sides of the base so as to adjust the positions of the wheels on the two sides in the length direction of the vehicle, and the first driving mechanism is located between the two sets of V-shaped positioning parts and drives the V-shaped positioning parts on the two sides to synchronously move in the length direction of the vehicle. The two V-shaped positioning parts are simultaneously driven by the first driving mechanism, so that the two V-shaped positioning parts are synchronously moved and adjusted, the positions of the wheels on the two sides can be quickly adapted, and the battery replacement efficiency can be further improved. Meanwhile, the wheel positioning device can adapt to vehicles with different wheelbases, the application range of the wheel positioning device is expanded, and the compatibility of the wheel positioning device is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of vehicle battery replacement, and particularly relates to a wheel positioning device and a lifting machine. BACKGROUND

[0002] With the development of new energy technology, electric vehicles, as a new energy transportation tool, have the characteristics of low noise, high energy utilization efficiency, no tail gas emission and the like, have become one of the strategic emerging industries in China that are focused on supporting, and are more and more popular among consumers. The energy used by electric vehicles is basically electric energy, and the electric vehicles need to be charged after the electric energy is used up. Due to the limitation of battery technology and charging technology, it takes a long time for the electric vehicles to be fully charged. In order to reduce the waiting time of users, replacing the battery when the electric energy of the electric vehicle is about to be used up is an effective means. In order to facilitate the replacement of the battery of the electric vehicle and meet the battery replacement demand of the electric vehicle, a battery replacement station needs to be built, so that the battery pack of the electric vehicle can be replaced by driving into the battery replacement station when the electric energy is depleted.

[0003] The lifting machine is usually provided in the battery replacement station, and the electric vehicle needs to drive onto the lifting machine in the battery replacement station when the battery is replaced. The electric vehicle is lifted by the lifting machine, so that the chassis of the electric vehicle has a certain height from the battery replacement platform, and the battery replacement equipment can be used for battery replacement operation. The positioning device is usually provided on the lifting machine to position and carry the wheels of the vehicle, so as to avoid movement of the vehicle during battery replacement. However, due to different vehicle models and wheel sizes, a plurality of positioning devices need to be provided in the battery replacement station to adapt to different wheelbase types of battery replacement vehicles, which is high in battery replacement cost and low in efficiency. CONTENT OF THE UTILITY MODEL

[0004] The application provides a wheel positioning device and a lifting machine, which can adapt to battery replacement vehicles with different wheelbases.

[0005] The technical scheme adopted by the application is as follows:

[0006] A wheel positioning device is arranged on a vehicle carrying platform of a battery replacement station and is used for adjusting the position of a battery replacement vehicle. The wheel positioning device comprises a base, a positioning mechanism mounted on the base, and a first driving mechanism connected with the positioning mechanism. The positioning mechanism comprises two groups of V-shaped positioning portions symmetrically arranged on both sides of the base, so as to adjust the positions of the wheels on both sides along the length direction of the vehicle. The first driving mechanism is located between the two groups of V-shaped positioning portions, and the first driving mechanism drives the V-shaped positioning portions on both sides to move synchronously along the length direction of the vehicle.

[0007] The V-shaped positioning portions are arranged to limit the wheels of the battery replacement vehicle, so as to avoid movement of the vehicle during battery replacement, thereby facilitating improvement of the use stability of the wheel positioning device, reliable limiting of the battery replacement vehicle during battery replacement, smooth battery replacement process, and improvement of the battery replacement efficiency of the battery replacement vehicle.

[0008] Meanwhile, by simultaneously driving the two groups of V-shaped positioning parts through the first driving mechanism, synchronous movement adjustment of the two groups of V-shaped positioning parts is realized, the positions of the wheels on both sides are quickly adapted, the battery replacement efficiency is further improved, and when the two groups of V-shaped positioning parts are moved by one driving mechanism, the movement time and distance of the two groups of V-shaped positioning parts are kept consistent, thereby the movement accuracy of the V-shaped positioning parts is improved. The V-shaped positioning parts move along the length direction of the vehicle, can adapt to vehicles with different wheelbase, and through synchronous movement of the V-shaped positioning parts, the wheel positioning device can adapt to and position vehicles with different wheelbase during battery replacement, expand the application range of the wheel positioning device, and improve the compatibility of the wheel positioning device.

[0009] In addition, the first driving mechanism is arranged to simultaneously drive the two groups of V-shaped positioning parts, which is conducive to controlling the setting cost of the driving mechanism.

[0010] In a preferred implementation manner of the wheel positioning device, the positioning mechanism further comprises a support part for mounting the V-shaped positioning part, the support part comprises a support table arranged below the V-shaped positioning part, and the first driving mechanism is connected to the support table to drive the V-shaped positioning part located on the support table to move along the length direction of the vehicle.

[0011] The support table is arranged below the V-shaped positioning part, and when the wheel falls on the V-shaped positioning part, the support strength at the V-shaped positioning part is improved through the support table, the support stability of the V-shaped positioning part is better, and the stable positioning effect on the vehicle is improved. Meanwhile, the first driving mechanism is connected to the support table, the first driving mechanism drives the support table to move, so as to realize the movement of the V-shaped positioning part mounted on the support table, the first driving mechanism is not directly connected to the V-shaped positioning part, the pressure influence of the vehicle weight on the connection position of the first driving mechanism is weakened, and the driving mode of the first driving mechanism connecting the support table to drive the V-shaped positioning part to move is conducive to further improving the movement stability of the V-shaped positioning part.

[0012] In a preferred implementation manner of the wheel positioning device, the first driving mechanism comprises a driving piece and a guide piece connected to the driving piece, the guide piece is arranged on both sides of the driving piece and connected to the support table, so that the driving piece drives the positioning mechanisms on both sides to move synchronously through the guide piece.

[0013] The guide piece is arranged to guide the movement of the support table and the V-shaped positioning part mounted on the support table, and the movement accuracy of the V-shaped positioning part is improved. The guide piece is connected to the support tables on both sides, the driving piece drives the guide piece to move synchronously on both sides, thereby the support tables on both sides and the V-shaped positioning parts mounted on the support tables are synchronously driven, the V-shaped positioning parts on both sides can move along the predetermined route through the guide piece, and the movement accuracy is improved.

[0014] In the preferred implementation of the wheel alignment device, the driving member comprises a first driving motor and a ball screw in transmission connection with the driving motor, the ball screw is installed on the base through the mounting seat, the guide member comprises guide rods arranged on both sides of the mounting seat, and the end of the guide rod is fixed to the support table.

[0015] By setting the driving motor and the ball screw, the rotary motion of the motor shaft is converted into linear motion, the guide rod arranged on the mounting seat of the ball screw moves linearly, the linear motion of the support table fixedly connected with the end of the guide rod is realized, so that the first driving motor drives the V-shaped positioning part on the support table, the V-shaped positioning part moves along the length direction of the vehicle to adapt to the wheel position of the vehicle with different wheelbase.

[0016] In the preferred implementation of the wheel alignment device, the guide rod is arranged in a trapezoidal shape and has a weight-reducing opening in the middle, and the longer end of the two parallel outer walls of the guide rod is fixed to the mounting seat, and the shorter end is fixed to the support table.

[0017] The trapezoidal guide rod is more evenly stressed in all directions, which is conducive to dispersing the connection stress of the two ends, and the two parallel outer walls are connected with the mounting seat and the support table respectively, which is conducive to improving the stability of the guide rod when driving the support table to move.

[0018] In the preferred implementation of the wheel alignment device, the support table comprises a support plate arranged below the V-shaped positioning part, the two ends of the support plate are upwardly protruding and provided with stepped portions, and the guide rod is fixed to the stepped surface of the stepped portion.

[0019] By arranging the support plate on the support table to support and position the V-shaped positioning part, the stress intensity at the V-shaped positioning part is improved, the end of the support table is lifted in height by arranging the stepped portion, the connection with the guide rod is facilitated, and the guide rod does not need to be bent to connect the support plate, which is conducive to ensuring the movement stability of the guide rod.

[0020] In the preferred implementation of the wheel alignment device, the lower side of the stepped portion is provided with a first sliding assembly fixed to the base, the first sliding assembly comprises a first sliding rail installed on the base and a first sliding block moving along the first sliding rail, the first sliding block is connected with the bottom surface of the stepped portion, so that the support table moves along the first sliding rail through the first sliding block.

[0021] The first sliding assembly is arranged to enable the support table to move along the slide rail in a preset direction, and the first sliding assembly and the guide rod are both connected with the support table through the stepped portion, and the guide rod drives the support table to move along the slide rail, on the one hand, the first slide rail assembly cooperates with the guide rod to further realize the guided movement of the support table and the V-shaped positioning portion mounted on the support table, and on the other hand, the first sliding assembly is arranged to facilitate the smooth movement of the support table and the V-shaped positioning portion, improve the movement efficiency, and realize the quick positioning of the V-shaped positioning portion.

[0022] In a preferred implementation manner of the wheel alignment device, the wheel alignment device comprises a cover plate arranged on the top of the base, the cover plate is arranged in parallel along the length direction of the vehicle and is distributed on both sides of the V-shaped positioning portion, and a guide member is connected with the cover plate and used to drive the cover plate to move with the V-shaped positioning portion to cover the gap between the V-shaped positioning portion and the base during movement.

[0023] The two sides of the V-shaped positioning portion are covered by the cover plate, which can avoid the wheel from being trapped in the gap between the two sides of the V-shaped positioning portion and the base, and is also beneficial to the aesthetic appearance of the overall structure. The cover plate is connected with the guide member, and the guide member drives the cover plate on both sides of the V-shaped positioning portion to move at the same time, so that the relative position between the cover plate and the V-shaped positioning portion is always stable.

[0024] In a preferred implementation manner of the wheel alignment device, the guide member is connected with the cover plate through a chain transmission mechanism, the chain transmission mechanism comprises a guide chain fixed to the support table and a sprocket arranged on both sides of the support table and engaged with the guide chain, the guide chain is connected with the cover plate, and a synchronous shaft is arranged between the two sprockets to drive the guide chains on both sides of the support table to move synchronously.

[0025] The chain transmission mechanism drives the cover plate and the V-shaped positioning portion to move synchronously, and the sprocket and the synchronous shaft are arranged to ensure the synchronism of the movement of the chains on both sides and improve the synchronism of the movement of the two sides of the cover plate and the stability of the movement of the cover plate.

[0026] In a preferred implementation manner of the wheel alignment device, the guide chain comprises a chain plate, a shaft sleeve and a chain pin connecting the chain plate and the shaft sleeve, the chain plate is provided with a connecting plate folded upward, and the bottom of the cover plate is fixedly connected with the connecting plate one by one to enable the guide chain to drive the cover plate to move through the connecting plate.

[0027] The plurality of chain plates of the guide chain are connected with the plurality of cover plates one by one through the connecting plates, the chain plates drive the cover plates connected therewith to move synchronously when the guide chain moves, and since the guide chain is fixed to the support table, the guide chain moves with the support table, thereby realizing the synchronous movement of the cover plate and the V-shaped positioning portion mounted on the support table.

[0028] In a preferred implementation of the wheel positioning device, the V-shaped positioning part comprises two rows of rollers arranged in a V shape, and the wheels of the battery swap vehicle fall on the V-shaped groove formed by the two rows of rollers.

[0029] The two rows of rollers form a downwardly recessed V-shaped groove, and the wheels of the battery swap vehicle fall in the V-shaped groove formed by the two rows of rollers, thereby achieving positioning of the battery swap vehicle.

[0030] In a preferred implementation of the wheel positioning device, the positioning device comprises a second driving mechanism and two limiting push plates arranged respectively towards the outer sidewalls of the wheels on both sides, and the second driving mechanism is used to drive at least one of the two limiting push plates to move relatively along the width direction of the vehicle to push against the wheels on the corresponding side.

[0031] The limiting push plates are arranged above the rollers and on the outer sides, and when the limiting push plates push against the wheels, the rollers do not interfere with the movement of the limiting push plates. By separately controlling and driving the limiting push plates on both sides through the second driving mechanism, the push plates on the corresponding side can be driven and adjusted according to the actual situation, so that the limiting push plates can push against the wheels on a single side or against the wheels on both sides according to the actual situation, thereby meeting the positioning requirements of the vehicle in different scenarios, positioning the vehicle at an accurate battery swap position, improving the accuracy of the wheel alignment, and improving the efficiency of the battery swap.

[0032] In a preferred implementation of the wheel positioning device, the second driving mechanism comprises a second driving motor fixed below the support table and a lead screw assembly in transmission connection with the second driving motor, the lead screw assembly comprises a lead screw arranged horizontally along the width direction of the vehicle, and the top surface of a nut seat outside the lead screw is fixed to the bottom surface of the support table, and the second driving mechanism further comprises a connecting seat arranged in parallel with the nut seat, the connecting seat is sleeved outside the lead screw and connected with the limiting push plate on the same side.

[0033] The second driving motor and the lead screw assembly are arranged at the bottom of the support table, and the hidden arrangement of the second driving mechanism does not affect the driving of the battery swap vehicle, and the space is reasonably utilized so that the second driving motor only drives the limiting push plate on the corresponding side to move, thereby realizing that the limiting push plates on both sides can move on a single side or simultaneously on both sides, and improving the practicability of the wheel positioning device.

[0034] In a preferred implementation of the wheel positioning device, the second driving mechanism further comprises a sliding plate connecting the limiting push plate on the same side with the connecting seat, the sliding plate is located at the bottom of the V-shaped groove of the V-shaped positioning part, the bottom of the support table is provided with a second sliding assembly, the second sliding assembly comprises a second sliding rail and a second sliding block matched with the second sliding rail, the second sliding block is fixedly connected with the connecting seat, and the second driving mechanism drives the connecting seat to drive the limiting push plate to move along the width direction of the vehicle.

[0035] The second sliding assembly is arranged below the support table, hides the structure of the second sliding assembly, does not affect the driving of the battery replacement vehicle, and makes the second sliding assembly slide in the moving direction of the limiting push plate, which is beneficial to reduce the friction force of the push plate on the bottom plate and realize the quick and accurate positioning of the limiting push plate. The sliding movement of the limiting push plate at the bottom of the support table through the connecting seat is efficient and simple in setting mode, and can quickly position the limiting push plate, thereby improving the battery replacement efficiency, and the support table can improve the overall structural strength of the positioning device, especially at the drum position of the vehicle wheel, which is beneficial to the stability of the vehicle positioning device.

[0036] The scheme also includes a lifting machine, which includes the wheel positioning device in any of the above implementation manners, and a lifting device is arranged below the wheel positioning device to drive the wheel positioning device to move relative to the electric vehicle.

[0037] The wheel positioning device is moved as a whole by the lifting machine to adapt the height of the wheel positioning device and the electric vehicle to the battery replacement platform during battery replacement.

[0038] Due to the adoption of the above technical scheme, the application has the following beneficial effects:

[0039] The V-shaped positioning part is arranged to limit the wheels of the battery replacement vehicle, avoid movement of the vehicle during battery replacement, improve the use stability of the wheel positioning device, reliably limit the battery replacement vehicle during battery replacement, and smoothly perform the battery replacement process, thereby improving the battery replacement efficiency of the battery replacement vehicle.

[0040] Meanwhile, the first driving mechanism simultaneously drives the two groups of V-shaped positioning parts to synchronously move and adjust the two groups of V-shaped positioning parts, quickly adapt to the positions of the wheels on both sides, further improve the battery replacement efficiency, and control the movement time and distance of the two groups of V-shaped positioning parts to be consistent when driven by one driving mechanism, thereby improving the movement accuracy of the V-shaped positioning part. The V-shaped positioning part moves along the length direction of the vehicle, can adapt to vehicles with different wheelbase, and through the synchronous movement of the V-shaped positioning part, the wheel positioning device can adapt to and position vehicles with different wheelbase during battery replacement, expand the application range of the wheel positioning device, and improve the compatibility of the wheel positioning device.

[0041] In addition, the first driving mechanism simultaneously drives the two groups of V-shaped positioning parts, which is beneficial to control the setting cost of the driving mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0042] The accompanying drawings used to provide further understanding of the present application, constitute a part of the present application, and the illustrative embodiments of the present application and their descriptions are used to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0043] Figure 1 It is the structural schematic view of the wheel positioning device in one embodiment of the utility model;

[0044] Figure 2 It is the structural schematic view of the positioning mechanism and the first drive mechanism in one embodiment of the utility model;

[0045] Figure 3 It is the structural schematic view of the V-shaped positioning part in one embodiment of the utility model;

[0046] Figure 4 It is the structural schematic view of the chain transmission mechanism in one embodiment of the utility model;

[0047] Figure 5 It is the A part of the enlarged view of Figure 4

[0048] Figure 6 It is the structural schematic view of the second drive mechanism in one embodiment of the utility model;

[0049] Figure 7 It is another angle schematic view of the second drive mechanism in one embodiment of the utility model;

[0050] Figure 8 It is the structural schematic view of the lifting device in one embodiment of the utility model;

[0051] Figure 9 It is the structural schematic view of the lifting machine in one embodiment of the utility model.

[0052] Mark explanation:

[0053] 100-base, 110-enclosing plate;

[0054] 200-positioning mechanism, 210-V-shaped positioning part, 211-roller, 212-V-shaped positioning groove, 220-supporting table, 221-supporting plate, 222-step part, 223-positioning plate, 230-cover plate, 240-limiting push plate;

[0055] 300-first drive mechanism, 310-first drive motor, 320-ball screw, 330-guiding rod, 331-weight-reducing port, 340-mounting seat;

[0056] 400-second drive mechanism, 410-second drive motor, 420-screw rod assembly, 421-screw rod, 422-nut seat, 423-connecting seat, 430-sliding plate;

[0057] 500-first sliding assembly, 510-first sliding block, 520-first sliding rail;

[0058] ​600 - second sliding assembly, 610 - second sliding block, 620 - second sliding rail;

[0059] 700 - chain transmission mechanism, 710 - guide chain, 711 - chain plate, 712 - shaft sleeve, 713 - chain pin, 720 - sprocket, 730 - synchronous shaft, 740 - connecting plate;

[0060] 800 - lifting device. DETAILED DESCRIPTION

[0061] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail with reference to the accompanying drawings.

[0062] In the following description, a lot of specific details are set forth in order to facilitate a thorough understanding of the application, but the application can also be implemented in other ways different from those described herein, therefore, the protection scope of the application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the application and the features in each embodiment can be combined with each other without conflict.

[0063] In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation of the present application.

[0064] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0065] 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.

[0066] This application provides a wheel alignment device, such as Figures 1 to 9 As shown, the wheel positioning device, located on the vehicle platform of the battery swapping station, is used to adjust the position of the battery swapping vehicle. The wheel positioning device includes a base 100, a positioning mechanism 200 mounted on the base 100, and a first drive mechanism 300 connected to the positioning mechanism 200. The positioning mechanism 200 includes two sets of V-shaped positioning parts 210 symmetrically arranged on both sides of the base 100 to adjust the position of the wheels on both sides along the length direction of the vehicle. The first drive mechanism 300 is located between the two sets of V-shaped positioning parts 210, and the first drive mechanism 300 drives the V-shaped positioning parts 210 on both sides to move synchronously along the length direction of the vehicle.

[0067] This solution uses a V-shaped positioning unit 210 to limit the wheels of the battery swapping vehicle, preventing the vehicle from moving during the battery swapping process. This improves the stability of the wheel positioning device, reliably limits the battery swapping vehicle during the swapping process, ensures a smooth swapping process, and enhances the battery swapping efficiency.

[0068] Simultaneously, the first drive mechanism 300 drives two sets of V-shaped positioning parts 210, enabling them to move and adjust synchronously. This allows for rapid adaptation to the wheel positions on both sides, further improving battery swapping efficiency. Furthermore, by using a single drive mechanism to move both sets of V-shaped positioning parts 210, the movement time and distance of the two sets are kept consistent, thus improving the accuracy of their movement. The V-shaped positioning parts 210 move along the length of the vehicle, accommodating vehicles with different wheelbases. The synchronous movement of the V-shaped positioning parts 210 allows the wheel alignment device to adapt to different wheelbases during battery swapping, expanding its applicability and enhancing its compatibility.

[0069] In addition, setting the first drive mechanism 300 to drive two sets of V-shaped positioning parts 210 simultaneously helps to control the setting cost of the drive mechanism.

[0070] In one embodiment, as shown in Figure 2 , Figure 3 The positioning mechanism 200 further comprises a support portion for mounting the V-shaped positioning portion 210, the support portion comprising a support table 220 arranged below the V-shaped positioning portion 210, and the first driving mechanism 300 is connected to the support table 220 to drive the V-shaped positioning portion 210 on the support table 220 to move along the length direction of the vehicle.

[0071] By arranging the support table 220 to support and mount the V-shaped positioning portion 210, the support table 220 is arranged below the V-shaped positioning portion 210, and when the vehicle wheel falls on the V-shaped positioning portion 210, the support strength of the V-shaped positioning portion 210 is improved by the support table 220, and the support stability of the V-shaped positioning portion 210 is better, which is beneficial to enhance the stable positioning effect of the vehicle. At the same time, the first driving mechanism 300 is arranged to connect the support table 220, and the first driving mechanism 300 drives the support table 220 to move, so as to realize the movement of the V-shaped positioning portion 210 mounted on the support table 220. The first driving mechanism 300 is not directly connected to the V-shaped positioning portion 210, which is beneficial to weaken the pressure influence of the vehicle weight on the connection of the first driving mechanism 300. The driving mode of the first driving mechanism 300 connecting the support table 220 to drive the V-shaped positioning portion 210 to move is beneficial to further improve the movement stability of the V-shaped positioning portion 210.

[0072] Further, as shown in Figure 2 The first driving mechanism 300 comprises a driving member and a guide member connected to the driving member, and the guide member is arranged on both sides of the driving member and connected to the support table 220, so that the driving member drives the guide member to move synchronously on both sides.

[0073] By arranging the guide member, the support table 220 and the V-shaped positioning portion 210 mounted on the support table 220 are guided to move, and the movement precision of the V-shaped positioning portion 210 is improved. The guide member is connected to the support table 220 on both sides, and the driving member drives the guide member to move synchronously on both sides, thereby realizing synchronous driving of the support table 220 on both sides and the V-shaped positioning portion mounted on the support table 220. The V-shaped positioning portion 210 on both sides can move according to the predetermined route through the guide member, and the movement precision is improved.

[0074] In a preferred embodiment, as shown in Figure 2 The driving member comprises a first driving motor 310 and a ball screw 320 in transmission connection with the driving motor, and the ball screw 320 is mounted on the base 100 through a mounting seat 340. The guide member comprises guide rods 330 arranged on both sides of the mounting seat 340, and the end portions of the guide rods 330 are fixed to the support table 220.

[0075] The rotation of the motor shaft is converted into linear motion by setting the form of the driving motor and the ball screw 320, so that the guide rod 330 arranged on the mounting seat 340 of the ball screw 320 moves linearly, the linear motion of the support table 220 fixedly connected with the end of the guide rod 330 is realized, so that the first driving motor 310 drives the V-shaped positioning part of the support table 220, the V-shaped positioning part 210 moves along the length direction of the vehicle to adapt to the wheel position of the vehicle with different wheelbase. The installation mode of the components of the driving motor and the ball screw 320 is simple, the driving form is simple and reliable, and the driving cost is low, which is convenient for popularization and use.

[0076] The guide rod 330 is arranged in a trapezoidal shape and has a weight-reducing opening 331 in the middle portion, and the longer end of the two parallel outer walls of the guide rod 330 is fixed to the mounting seat 340, and the shorter end is fixed to the support table 220.

[0077] The guide rod 330 arranged in a trapezoidal shape is more uniform in stress in each direction, which is beneficial to disperse the connection stress of the two ends, and the two parallel outer walls are connected with the mounting seat 340 and the support table 220 respectively, which is beneficial to improve the stability of the guide rod 330 when driving the support table 220 to move, and at the same time, the longer end of the two parallel outer walls at both ends is fixedly connected with the mounting seat 340, which is beneficial to improve the stability of the guide rod 330 when transmitting movement, and is beneficial to the accuracy of the moving direction of the guide rod 330. In addition, the weight-reducing opening 331 is arranged to reduce the overall weight of the guide rod 330, reduce the driving force required for the movement of the guide rod 330, and is beneficial to reduce the overall weight of the wheel positioning device.

[0078] In a preferred embodiment, as shown in Figure 2 The support table 220 includes a support plate 221 arranged below the V-shaped positioning part 210, and the two ends of the support plate 221 are upwardly provided with stepped portions 222, and the guide rod 330 is fixed to the stepped surface of the stepped portion 222.

[0079] By arranging the support plate 221 on the support table 220 to support and position the V-shaped positioning part 210, and improving the stress intensity at the V-shaped positioning part 210, the height of the end of the support table 220 is raised by arranging the stepped portion 222, which is convenient for connection with the guide rod 330, avoids the need for the guide rod 330 to be bent to connect the support plate 221, and is beneficial to ensure the movement stability of the guide rod 330.

[0080] Further, as shown in Figure 2 , Figure 3As shown, the lower part of the step portion 222 is provided with a first sliding assembly 500 fixed to the base 100, the first sliding assembly 500 comprising a first sliding rail 520 mounted on the base 100 and a first sliding block 510 moving along the first sliding rail 520, the first sliding block 510 being connected to the bottom surface of the step portion 222 to enable the support table 220 to move along the first sliding rail 520 through the first sliding block 510.

[0081] The first sliding assembly 500 enables the support table 220 to move along the sliding rail in a preset direction, and both the first sliding assembly 500 and the guide rod 330 are connected to the support table 220 through the step portion 222, the guide rod 330 driving the support table 220 to move along the sliding rail, on the one hand, the first sliding rail 520 assembly cooperates with the guide rod 330 to further realize the guided movement of the support table 220 and the V-shaped positioning portion 210 mounted thereon, on the other hand, the first sliding assembly 500 is conducive to improving the smooth movement of the support table 220 and the V-shaped positioning portion 210, improving the movement efficiency and realizing the quick positioning of the V-shaped positioning portion 210.

[0082] In an embodiment, as shown in Figures 3 to 5 The wheel alignment device comprises a cover plate 230 arranged on the top of the base 100, the cover plate 230 being arranged in parallel along the length direction of the vehicle and distributed on both sides of the V-shaped positioning portion 210, a guide member being connected to the cover plate 230 for driving the cover plate 230 to move with the V-shaped positioning portion 210 to cover the gap between the V-shaped positioning portion 210 and the base 100 during movement.

[0083] The cover plate 230 covers both sides of the V-shaped positioning portion 210, which can avoid the wheels from falling into the gap between the V-shaped positioning portion 210 and the base 100, and is conducive to the aesthetic appearance of the overall structure, the cover plate 230 being connected to the guide member, the guide member driving the cover plate 230 on both sides of the V-shaped positioning portion 210 to move at the same time, so that the relative position between the cover plate 230 and the V-shaped positioning portion 210 is always stable.

[0084] As shown in Figure 3 , Figure 4 The guide member is connected to the cover plate 230 through a chain transmission mechanism 700, the chain transmission mechanism 700 comprising a guide chain 710 fixed to the support table 220 and a sprocket 720 arranged on both sides of the support table 220 and engaged with the guide chain 710, the guide chain 710 being connected to the cover plate 230, and a synchronous shaft 730 being arranged between the two sprockets 720 to drive the guide chains 710 on both sides of the support table 220 to move synchronously.

[0085] The cover plate 230 is driven by the chain transmission mechanism 700 to move synchronously with the V-shaped positioning part 210. The sprocket 720 and the synchronous shaft 730 are arranged to ensure the synchronization of the movement of the chains on both sides, thereby improving the synchronization of the movement of the cover plate 230 on both sides and the stability of the movement of the cover plate 230.

[0086] Further, the V-shaped positioning part 210 includes a V-shaped limiting groove fixed to the support table 220, and the rollers 211 are arranged in the V-shaped limiting groove. The side of the V-shaped limiting groove away from the guide rod 330 is fixed to the stepped part 222 of the support table 220, and the guide chain 710 on this side is fixed to the V-shaped limiting groove. The stepped surface of the stepped part 222 of the support table 220 near the guide rod 330 is provided with a positioning plate 223, and the guide rod 330 and the guide chain 710 on this side are fixedly connected with the positioning plate 223.

[0087] Further, as shown in Figure 5 , the guide chain 710 includes chain plates 711, shaft sleeves 712, and chain pins 713 connecting the chain plates 711 and the shaft sleeves 712. The chain plates 711 are provided with upwardly folded connecting plates 740, and the bottom of the cover plate 230 is fixedly connected with the connecting plates 740 one by one, so that the guide chain 710 drives the cover plate 230 to move through the connecting plates 740.

[0088] The chain plates 711 and the connecting plates 740 can be integrally formed or connected in a split type. Preferably, the chain plates 711 are upwardly folded to directly form the connecting plates 740, which is beneficial to improve the connection reliability, reduce the assembly steps, and reduce the assembly difficulty.

[0089] The plurality of chain plates 711 of the guide chain 710 are connected with the plurality of cover plates 230 through the connecting plates 740 one by one. When the guide chain 710 moves, the chain plates 711 drive the cover plates 230 connected therewith to move synchronously. Since the guide chain 710 is fixed to the support table 220, the guide chain 710 moves with the support table 220, thereby realizing the synchronous movement of the cover plate 230 and the V-shaped positioning part 210 mounted on the support table 220.

[0090] In one embodiment, as shown in Figure 2 , Figure 3 , the V-shaped positioning part 210 includes two rows of rollers 211 arranged in a V shape, and the wheels fall on the rollers 211.

[0091] The two rows of rollers 211 form a V-shaped groove downwardly recessed, and the wheels of the battery swap vehicle fall in the V-shaped groove formed by the two rows of rollers 211, thereby realizing the limiting of the battery swap vehicle.

[0092] In an embodiment, the positioning device comprises a second driving mechanism 400 and two limiting push plates 240 respectively arranged towards the outer sidewalls of the two side wheels, the second driving mechanism 400 is used to drive at least one of the two limiting push plates 240 to move relatively along the width direction of the vehicle to push the corresponding side wheel.

[0093] The limiting push plate 240 is arranged above the roller 211 and on the outer side, when the limiting push plate 240 pushes the wheel, the roller 211 will not interfere with the movement of the limiting push plate 240. By respectively controlling and driving the two limiting push plates 240 on the two sides through the second driving mechanism 400, the corresponding side push plate can be driven and adjusted according to the actual situation, so that the limiting push plate 240 can push the wheel on one side according to the actual situation, or push the wheels on both sides, to meet the vehicle positioning requirements in different scenes, so that the vehicle is located at the accurate battery replacement position, improving the battery replacement accuracy and efficiency, and being beneficial to improving the accuracy of the wheel pair.

[0094] Further, as shown in Figure 6 , Figure 7 The second driving mechanism 400 comprises a second driving motor 410 fixed below the support table 220 and a lead screw assembly 420 in transmission connection with the second driving motor 410, the lead screw assembly 420 comprises a lead screw 421 arranged horizontally along the width direction of the vehicle, the top surface of a nut seat 422 outside the lead screw 421 is fixed to the bottom surface of the support table 220, the second driving mechanism 400 further comprises a connecting seat 423 arranged in parallel with the nut seat 422, the connecting seat 423 is sleeved outside the lead screw 421 and connected with the limiting push plate 240 on the same side.

[0095] The second driving motor 410 and the lead screw assembly are arranged at the bottom of the support table 220, the second driving mechanism 400 is hiddenly arranged and will not affect the driving of the battery replacement vehicle, the space is reasonably utilized so that the second driving motor 410 only drives the limiting push plate 240 on the corresponding side to move, so that the limiting push plates 240 on the two sides can move on one side or simultaneously move on both sides, improving the practicability of the wheel positioning device.

[0096] Further, as shown in Figure 6 , Figure 7 The second driving mechanism 400 further comprises a sliding plate 430 connecting the limiting push plate 240 on the same side and the connecting seat 423, the sliding plate 430 is located at the bottom of the V-shaped groove of the V-shaped positioning part 210, the bottom of the support table 220 is provided with a second sliding assembly 600, the second sliding assembly 600 comprises a second sliding rail 620 and a second sliding block 610 matched with the second sliding rail 620, the second sliding block 610 is fixedly connected with the connecting seat 423, and the second driving mechanism 400 drives the connecting seat 423 to drive the limiting push plate 240 to move along the width direction of the vehicle.

[0097] The second sliding assembly 600 is arranged below the support table 220, hides the structure of the second sliding assembly 600, does not affect the driving of the battery replacement vehicle, and makes the second sliding assembly 600 slide in the moving direction of the limiting push plate 240, which is beneficial to reduce the friction force of the push plate on the bottom plate and realize the quick and accurate positioning of the limiting push plate 240. The limiting push plate 240 is driven to slide by the sliding of the connecting seat 423 at the bottom of the support table 220, the sliding movement is efficient, the setting mode is simple, the limiting push plate 240 can be quickly positioned, thereby being beneficial to improve the battery replacement efficiency, and the support table 220 can improve the overall structural strength of the positioning device, especially at the position of the roller 211 supporting the wheels, which is beneficial to the support stability of the vehicle positioning device.

[0098] The present application also includes a lifting machine, as shown in Figure 8 、 Figure 9 The lifting machine includes the wheel positioning device in any of the above implementation examples, and a lifting device 800 is arranged below the wheel positioning device to drive the wheel positioning device to move relative to the electric vehicle.

[0099] The lifting device 800 can be a hydraulic lifting machine in the prior art, which moves the wheel positioning device as a whole to adapt the height of the wheel positioning device and the electric vehicle to the battery replacement platform during battery replacement.

[0100] In addition, as shown in Figure 9 The top surface of the base 100 is provided with a sealing plate 110 for covering the first driving mechanism 300, so as to isolate and protect the first driving mechanism 300, and weaken the working noise of the first driving motor 310.

[0101] The places not mentioned in the present application can be realized by using or referring to the existing technology.

[0102] Each embodiment in the present specification is described in a progressive manner, and the same or similar parts between each embodiment can be referred to each other, and each embodiment mainly describes the difference from other embodiments.

[0103] The above only describes the embodiments of the present application and is not used to limit the present application. The present application can have various changes and modifications for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the scope of claims of the present application.

Claims

1. A wheel positioning device, installed on the vehicle platform of a battery swapping station, for adjusting the position of the battery swapping vehicle, characterized in that, The wheel positioning device includes a base, a positioning mechanism mounted on the base, and a first drive mechanism connected to the positioning mechanism. The positioning mechanism includes two sets of V-shaped positioning parts symmetrically arranged on both sides of the base to adjust the position of the wheels on both sides along the length direction of the vehicle. The first drive mechanism is located between the two sets of V-shaped positioning parts, and the first drive mechanism drives the V-shaped positioning parts on both sides to move synchronously along the length direction of the vehicle. The positioning mechanism further includes a support for mounting the V-shaped positioning part. The support includes a support platform disposed below the V-shaped positioning part. The first drive mechanism is connected to the support platform to drive the V-shaped positioning part located on the support platform to move along the length direction of the vehicle. The first driving mechanism includes a driving component and a guide component connected to the driving component. The guide component is disposed on both sides of the driving component and connected to the support platform, so that the driving component drives the positioning mechanisms on both sides to move synchronously through the guide component. The driving component includes a first driving motor and a ball screw that is connected to the driving motor in a transmission manner. The ball screw is mounted on the base via a mounting seat. The guiding component includes guide rods disposed on both sides of the mounting seat, and the ends of the guide rods are fixed to the support platform.

2. The wheel alignment device according to claim 1, characterized in that, The guide rod is trapezoidal in shape and has a weight-reducing opening in the middle. The longer end of the two parallel outer walls of the guide rod is fixed to the mounting base, and the shorter end is fixed to the support platform.

3. The wheel alignment device according to claim 2, characterized in that, The support platform includes a support plate disposed below the V-shaped positioning part. Both ends of the support plate are provided with stepped portions that protrude upwards, and the guide rod is fixed to the stepped surface of the stepped portion.

4. The wheel alignment device according to claim 3, characterized in that, Below the step portion, a first sliding assembly is fixed to the base. The first sliding assembly includes a first slide rail mounted on the base and a first slider that moves along the first slide rail. The first slider is connected to the bottom surface of the step portion so that the support platform can move along the first slide rail via the first slider.

5. The wheel alignment device according to claim 1, characterized in that, The wheel positioning device includes a cover plate disposed on the top of the base. Multiple cover plates are arranged side by side along the length of the vehicle and distributed on both sides of the V-shaped positioning part. The guide member is connected to the cover plate and is used to drive the cover plate to move with the V-shaped positioning part to cover the gap between the V-shaped positioning part and the base when the V-shaped positioning part moves.

6. The wheel alignment device according to claim 5, characterized in that, The guide component is connected to the cover plate via a chain drive mechanism. The chain drive mechanism includes a guide chain fixed to the support platform and sprockets disposed on both sides of the support platform and meshing with the guide chain. The guide chain is connected to the cover plate, and a synchronous shaft is provided between the sprockets on both sides to drive the guide chains on both sides of the support platform to move synchronously.

7. The wheel alignment device according to claim 6, characterized in that, The guide chain includes a chain plate, a bushing, and a chain pin connecting the chain plate and the bushing. The chain plate is provided with an upwardly folding connecting plate. The bottom of the cover plate is fixedly connected to the connecting plate, so that the guide chain drives the cover plate to move through the connecting plate.

8. The wheel alignment device according to claim 1, characterized in that, The V-shaped positioning part includes two rows of rollers arranged in a V-shape, and the wheel rests on the rollers.

9. The wheel alignment device according to claim 1, characterized in that, The positioning device includes a second drive mechanism and two limiting push plates respectively disposed toward the outer side walls of the two wheels. The second drive mechanism is used to drive at least one of the two limiting push plates to move relative to each other along the width direction of the vehicle to push against the wheels on the corresponding sides.

10. The wheel alignment device according to claim 9, characterized in that, The second drive mechanism includes a second drive motor fixed below the support platform and a lead screw assembly that is drively connected to the second drive motor. The lead screw assembly includes a lead screw horizontally arranged along the width direction of the vehicle. The top surface of the nut seat outside the lead screw is fixed to the bottom surface of the support platform. The second drive mechanism also includes a connecting seat arranged parallel to the nut seat. The connecting seat is sleeved on the outside of the lead screw and connected to the limiting push plate on the same side.

11. The wheel alignment device according to claim 10, characterized in that, The second drive mechanism also includes a sliding plate connecting the limiting push plate and the connecting seat on the same side. The sliding plate is located at the bottom of the V-groove of the V-shaped positioning part. The bottom of the support platform is provided with a second sliding component. The second sliding component includes a second slide rail and a second slider adapted to the second slide rail. The second slider is fixedly connected to the connecting seat. The second drive mechanism drives the connecting seat to move the limiting push plate along the vehicle width direction.

12. A lifting machine, characterized in that, The lift includes a wheel alignment device as described in any one of claims 1-11, with a lifting device located below the wheel alignment device to move the wheel alignment device relative to the electric vehicle.

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