CN218491355U - Lifting device and power conversion station comprising same - Google Patents

Abstract

The utility model provides a lifting device and a power exchange station comprising the lifting device. The lifting device includes a frame body, and the frame body includes two wheel placement parts arranged at intervals, and the two wheel placement parts are arranged along the vehicle width direction and are used for placing two coaxial wheels. The lifting device also includes a wheelbase adjustment mechanism arranged on the frame body, the wheelbase adjustment mechanism includes a pushing part and a drive unit that drives the pushing part to move toward the wheel placement part on the corresponding side along the vehicle width direction. The pushing part is provided with an abutment plate at a position close to the corresponding wheel placement part, and the abutment plate is used for abutting against the corresponding wheel, and the hardness of the material of the abutment plate is lower than the hub hardness of the wheel. The lifting device has a simple structure, and the abutment plate will not damage the wheel hub during the process of pushing the wheel.

Description

Lifting device and substation including it

technical field

The utility model relates to the field of battery exchange for electric vehicles, in particular to a lifting device and a battery exchange station comprising the same.

Background technique

Now electric vehicles are more and more popular with consumers. The energy used by electric vehicles is basically electric energy. Electric vehicles need to be charged after the electric energy is used up. Due to the limitations of current battery technology and charging technology, it takes a long time for electric vehicles to be fully charged. The time is not as simple and fast as fuel vehicles directly refueling. Therefore, in order to reduce the user's waiting time, it is an effective means to replace the battery when the electric energy of the electric vehicle is almost exhausted. In order to facilitate the replacement of batteries for electric vehicles and meet the needs of electric vehicles for battery replacement, it is necessary to build a battery swap station so that when the battery pack of an electric vehicle is running out of power, it can be replaced by driving into the battery swap station. The power exchange station is equipped with a lifting device, which is used to raise the electric vehicle when the electric vehicle is performing a battery exchange operation, so that the battery exchange equipment can run to the bottom of the electric vehicle to perform battery exchange operations on the electric vehicle.

Since the electric vehicle is driving to the lifting device, it is difficult for the actual driving direction to be completely parallel to the driving direction specified by the power exchange station and to stop and accurately stop at the required position on the lifting device. The position of the battery replacement equipment does not correspond exactly, and there will be problems of battery replacement failure or repeated battery replacement operations.

In order to solve the above technical problems, a wheelbase adjustment mechanism is disclosed in the prior art, which adjusts the position of the electric vehicle in the vehicle width direction by pushing it from the inside of the two wheels to move in the vehicle width direction, wherein the lift What the device contacts with the tire side is a roller made of metal, because its hardness is usually higher than that of the hub of the wheel, so it is easy to damage the hub of the wheel.

Utility model content

The utility model aims to solve the technical problem that the hardness of the roller pushing the tire is higher than that of the hub in the prior art, resulting in easy damage to the hub of the wheel, and provides a lifting device and a power station containing it.

The utility model solves the problems of the technologies described above through the following technical solutions:

A lifting device includes a frame body, the frame body includes two wheel placement parts arranged at intervals, the two wheel placement parts are arranged along the vehicle width direction and are used to place two coaxial wheels, the lifting The device also includes:

A wheelbase adjustment mechanism, which is arranged on the frame body, and the wheelbase adjustment mechanism includes a pushing part and a drive unit that drives the pushing part to move toward the wheel placement part on the corresponding side along the vehicle width direction;

Wherein, the pushing part is provided with an abutment plate at a position close to the corresponding wheel placement part, and the abutment plate is used to abut against the corresponding wheel, and the hardness of the material of the abutment plate is lower than that of the said abutment plate. The hub hardness of the wheel.

In this solution, the structure of the lifting device is simple, and since the hardness of the abutment plate is lower than that of the wheel hub, the abutment plate will not damage the wheel hub during the process of pushing the wheel.

Preferably, the hardness of the abutment plate is lower than 100HB.

Preferably, said abutment plate is made of a polymer material.

Preferably, the abutting plate is made of at least one of PA, PC, PU, PE, PP, PBT, PPO, PTFE, PVC, POM, ABS, phenolic plastic or rubber.

In this scheme, the selection of materials is flexible, and there are many types of materials to choose from. Wherein, when two or more of the above-mentioned materials are selected, the corresponding types of materials can be spliced.

Preferably, the height of the upper end of the abutment plate is higher than the lowest point of the hub.

In this solution, by adopting the above arrangement, it can ensure that the abutting plate and the wheel have a proper contact area.

Preferably, the abutment plate extends to the front and rear ends of the frame body along the length direction of the vehicle.

In this solution, by adopting the above-mentioned structural arrangement, the extending range of the abutment plate is relatively long, which can match more vehicle types with different wheelbases.

Preferably, the abutting plate is detachably connected to the pushing part.

In this solution, the abutting plate is detachably connected to the pushing part, which is convenient for replacement and maintenance.

Preferably, the abutment plate is provided with a first connection hole, the first connection hole includes a first hole segment and a second hole segment connected in sequence, and the diameter of the first hole segment gradually decreases until it is equal to the second hole The hole diameter of the section, the connecting piece passes through the first hole section and the second hole section in turn and is connected to the pushing part, and the end of the connecting piece away from the pushing part does not protrude beyond the abutment plate away from the pushing part end face of the part.

In this solution, the above-mentioned structural arrangement can avoid the contact between the connecting piece and the tread or the hub of the wheel, thereby causing damage to the wheel.

Preferably, the wheel base adjustment mechanism further includes a rotationally symmetrical mechanism, the rotationally symmetrical mechanism includes two power output ends, each of the power output ends is provided with one of the pushing parts, and two of the power output ends move synchronously in opposite directions in the vehicle width direction, the driving unit is connected to the rotationally symmetrical mechanism and is used to drive the two pushing parts respectively towards the corresponding sides in the vehicle width direction through the rotationally symmetrical mechanism. The direction of the wheel placement part moves synchronously.

In this solution, the two pushing parts can synchronously push the wheels from both sides of the two wheels to realize the positioning of the vehicle in its width direction, and the wheelbase adjustment efficiency of the vehicle is higher.

Preferably, the two pushing parts are both arranged between the two wheels.

In this solution, the two pushing parts push the wheels from the inside of the two wheels, so compared with the structure of pushing the wheels from the outside, this solution makes full use of the space between the two wheels, making the structure of the lifting device more compact , takes up less space and saves materials.

Preferably, the rotational symmetry mechanism is arranged between the two wheel placement parts, the rotational symmetry mechanism includes a first connecting rod, a rotating member and a second connecting rod connected in sequence, and the middle part of the rotating member has a rotating center, the rotating member can rotate relative to the frame along its own rotation center;

The first end of the first connecting rod and the first end of the second connecting rod are respectively hinged to the two ends of the rotating member, and the first connecting rod and the second connecting rod rotate relative to the The center of rotation of the part is symmetrical;

The rotational symmetry mechanism further includes two linear guide mechanisms. Along the vehicle width direction, the two linear guide mechanisms are respectively arranged on both sides of the rotating member, and the two linear guide mechanisms are relatively to the rotating member. The center of rotation of the part is symmetrical;

The two pushing parts are arranged on the linear guide mechanism on the corresponding side, and the second end of the first connecting rod and the second end of the second connecting rod are respectively hinged to the linear guide mechanism on the corresponding side ;

The drive unit is connected and drives the two linear guide mechanisms to move along the width direction of the vehicle.

In this solution, the rotationally symmetrical mechanism has a simple structure, and the rotationally symmetrical mechanism can drive the two pushing parts to move synchronously, which can ensure the synchronization of the movement of the two pushing parts.

Preferably, the linear guide mechanism includes a first guide rail, a second guide rail, a slider and a connecting plate, and the first guide rail and the second guide rail extend along the vehicle width direction and are arranged parallel to each other on the side of the rotationally symmetrical mechanism. On both sides of the rotation center, the first guide rail and the second guide rail are respectively provided with the sliders, the two ends of the connecting plate are respectively connected to the sliders on the corresponding sides, and the pushing part connected with the connecting plate on the corresponding side;

The second end of the first connecting rod and the second end of the second connecting rod are respectively hinged on the corresponding connecting plates.

In this scheme, the linear guide mechanism is composed of the first guide rail, the second guide rail, the slider and the connecting plate, which has a simple structure and good stability. The movement of the connecting plate is guided by the guide rail to reduce the moving resistance of the pushing part. , to make the movement of the pushing part smoother.

Preferably, the lifting device further includes a lifting plane horizontally arranged on the upper end of the frame body, and the lifting plane is located between the two wheel placement parts, and the rotational symmetry mechanism is located on the lifting plane. below the elevation.

In this solution, the lifting plane can protect the rotationally symmetrical mechanism. In addition, the lifting plane can prevent impurities such as dust from entering the interior of the rotationally symmetrical mechanism to a certain extent, ensuring the normal operation of the rotationally symmetrical mechanism and improving the dustproof effect.

Preferably, the pushing part includes two support plates parallel to each other and the end connection structure, and along the vehicle length direction, both ends of the end connection structure are respectively connected to the connection plates on the corresponding sides through the support plates , the abutment plate is connected to the end connection structure.

In this solution, the end connection structure is driven by two support plates to move the wheels, so that the movement of the end connection structure is more stable.

Preferably, the support plate extends upward from below the lifting plane to above the lifting plane, so that the end connection structure is located above the lifting plane and/or the wheel placement portion.

In this solution, by adopting the above-mentioned structural arrangement, the structure of part of the support plate can be protected by the lifting plane.

Preferably, the end connection structure includes an end connection plate and a push plate arranged perpendicular to each other, the push plate is vertically arranged and the abutment plate is connected to the push plate, and the end connection plate The two ends are respectively detachably connected with one end of the corresponding supporting plate protruding from the lifting plane.

In this solution, the two ends of the end connecting plate are connected and supported by two supporting plates, which is beneficial to improve the overall stability of the pushing part and facilitate the disassembly and maintenance of the end connecting structure.

Preferably, the abutting plate has an accommodating groove, and the push plate is embedded in the accommodating groove.

In this solution, it is convenient to realize the alignment connection between the abutment plate and the push plate, and at the same time further protect the side of the push plate.

The utility model also provides a power exchange station, which includes the above-mentioned lifting device, and the lifting device is used to lift two coaxial wheels of a vehicle.

The positive progressive effect of the present utility model is:

The lifting device in the utility model has a simple structure, and at the same time, because the hardness of the abutment plate is lower than that of the wheel hub, the abutment plate will not damage the wheel hub during the process of pushing the wheel.

Description of drawings

Fig. 1 is a schematic diagram of the three-dimensional structure of the power exchange station according to Embodiment 1 of the present invention.

Fig. 2 is a top view structural schematic diagram of the power exchange station in Embodiment 1 of the present utility model.

Fig. 3 is a schematic structural view of the lifting device of Embodiment 1 of the present utility model.

Fig. 4 is a partial structural schematic diagram of the lifting device according to Embodiment 1 of the present invention, wherein the lifting plane and part of the frame body at the wheel placement part are not shown in the figure.

Fig. 5 is a structural schematic diagram of another part of the lifting device according to Embodiment 1 of the present utility model, wherein the lifting plane, part of the frame body at the wheel placement part, the lifting mechanism and the base are not shown in the figure.

Fig. 6 is a structural schematic diagram of another part of the lifting device according to Embodiment 1 of the present utility model, wherein the wheel placing part and the wheelbase adjusting mechanism are shown in the figure.

Fig. 7 is a structural schematic diagram of the wheel base adjustment mechanism in the lifting device according to Embodiment 1 of the present utility model.

Fig. 8 is a structural schematic diagram of the connection between the rotationally symmetrical mechanism and the driving unit in the lifting device according to Embodiment 1 of the present utility model.

Fig. 9 is a partial structural schematic diagram of the wheel base adjustment mechanism in the lifting device according to Embodiment 1 of the present utility model, wherein the abutment plate, the pushing part and part of the rotationally symmetrical mechanism are shown in the figure.

Fig. 10 is a structural schematic diagram of the pushing part of the lifting device according to Embodiment 1 of the present utility model, wherein the pushing part and part of the rotationally symmetrical mechanism are shown in the figure.

Fig. 11 is a structural schematic diagram of the connection between the pushing part and the abutment plate in the lifting device according to Embodiment 1 of the present utility model.

Fig. 12 is a schematic structural view of the abutment plate in the lifting device according to Embodiment 1 of the present utility model.

Fig. 13 is a schematic structural view of the other side of the abutment plate in the lifting device according to Embodiment 1 of the present utility model.

FIG. 14 is a schematic cross-sectional structure diagram along A-A in FIG. 13 .

Fig. 15 is a structural schematic diagram of the linear guide mechanism in the lifting device according to Embodiment 1 of the present utility model.

Fig. 16 is a schematic diagram of a part of the internal structure of the rotationally symmetrical mechanism in the lifting device according to Embodiment 1 of the present utility model.

Fig. 17 is a schematic structural view of the wheel placement part in the lifting device according to Embodiment 1 of the present utility model.

Explanation of reference signs:

11 battery exchange room; 12 charging room; 2 lifting device; 21 base; 22 lifting mechanism; 3 frame body; 31 wheel placement part; 32 roller mechanism; 33 frame body; Bending part; 412 second bending part; 42 end connecting structure; 43 end connecting plate; 431 reinforcing rib; 44 pushing plate; 441 second connecting hole; Hole; 62 first hole section; 63 second hole section; 64 connector; 65 accommodating groove; 7 rotational symmetry mechanism; 71 first connecting rod; 72 rotating part; 721 rotating shaft; 722 rotating rod; 723 bearing; 724 bearing Seat; 725 base plate; 73 second connecting rod 74 linear guide mechanism; 741 first guide rail; 742 second guide rail; 743 slider; 744 connecting plate; 8 lifting plane.

Detailed ways

A preferred embodiment is given below, and the utility model is described more clearly and completely in conjunction with the accompanying drawings.

【Example 1】

As shown in FIG. 1 and FIG. 2 , this embodiment discloses a specific implementation of a power exchange station. electrical equipment (not shown in the figure). The charging chamber 12 is arranged adjacent to the battery exchange chamber 11 . In this embodiment, there are two charging chambers 12 , which are located on both sides of the battery exchange chamber 11 respectively. The battery exchange room 11 is used to carry the electric vehicle whose battery pack is to be replaced. The electric vehicle drives into and parks in the battery exchange room 11. The battery exchange equipment removes the old battery pack to be charged on the electric vehicle and installs a fully charged new battery pack. After the old battery on the electric vehicle is dismantled by the power exchange equipment, it is transported to the charging room 12 for charging. In other alternative embodiments, the number of charging chambers 12 may also be one or more, and the positions of the charging chambers 12 and the battery exchange chambers 11 may also be adjusted according to actual needs.

Since the battery pack is generally installed under the chassis of the electric vehicle, the power exchange equipment needs to enter and exit the bottom of the electric vehicle to realize the power exchange operation, that is, the operation of replacing the battery pack. Therefore, in order to ensure that the bottom of the electric vehicle has a sufficient height for the power exchange equipment to enter and exit, a lifting device 2 for lifting the electric vehicle will be installed in the power exchange station to lift the electric vehicle (along the vehicle height direction, that is, in Figure 1 Z direction), so that the bottom of the electric vehicle forms a space for power swapping equipment to perform power swapping operations.

The lifting device 2 in this embodiment is suitable for electric vehicles with different wheelbases and different wheelbases, and helps the electric vehicle parked on the lifting device 2 to correct its position, so that the electric vehicle can face the battery replacement equipment directly, and improve the battery life of the electric vehicle. electrical efficiency.

As shown in Figure 2, the lifting device 2 is arranged in the battery exchange room 11, and two lifting devices 2 are correspondingly arranged in the battery exchange room 11. , that is, the vehicle length direction) are set at intervals. One of the lifting devices 2 is used to lift the two front wheels of the electric vehicle, and the other lifting device 2 is used to lift the two rear wheels of the electric vehicle. When the front wheels and the rear wheels of the electric vehicle move to the two lifting devices 2 respectively, the two lifting devices 2 lift the electric vehicle simultaneously to ensure that the entire electric vehicle can be lifted smoothly. It should be noted that the two lifting devices 2 may adopt the same structure or different structures. Wherein, the Y direction in FIG. 2 corresponds to the vehicle width direction, and the X direction corresponds to the vehicle length direction.

As shown in FIG. 3 , the lifting device 2 includes a frame body 3 , a base 21 and a lifting mechanism 22 . The lifting mechanism 22 is connected to the frame body 3 and the base 21 respectively, and drives the frame body 3 to rise and fall relative to the base 21 in the height direction. The height of the vehicle can be adjusted through the lifting device, so that sufficient height space is left under the vehicle for the power exchange equipment to perform power exchange.

Among them, as shown in Figure 3, the lifting mechanism 22 in this embodiment adopts a scissors fork structure. A structure that rises and falls in the direction.

As shown in Fig. 3-17, this embodiment discloses a specific lifting device 2, which includes the base 21 of the above-mentioned frame body 3, a lifting mechanism 22 and a wheel base adjusting mechanism. Wherein, the frame body 3 includes two wheel placement parts 31 and a frame body 33 arranged at intervals, the aforementioned frame body is rectangular, the wheel placement parts 31 are located in the frame body and at both ends of the frame body, and the two wheel placement parts 31 are positioned along the vehicle It is arranged widthwise and is used to place two coaxial wheels. The wheelbase adjustment mechanism is arranged on the frame body 33 , and the wheelbase adjustment mechanism includes a pushing part 4 and a drive unit 5 that drives the pushing part 4 to move toward the wheel placement part 31 on the corresponding side along the vehicle width direction. Wherein, the pushing portion 4 is provided with a vertically arranged abutment plate 6 at a position close to the corresponding wheel placement portion 31, and the abutment plate 6 is used to abut against the corresponding wheel, thereby increasing the contact area between the abutment plate 6 and the wheel, The hardness of the material of the abutment plate 6 is lower than that of the hub of the wheel. In this embodiment, the material of the abutment plate 6 is rubber.

It should be noted that the lifting device 2 can be used to adjust the track of the two coaxial front wheels, and can also be used to adjust the track of the two coaxial rear wheels. In this embodiment, what the lifting device 2 adjusts is the track of the two coaxial rear wheels.

In order to ensure a proper contact area between the abutment plate 6 and the wheel, in this embodiment, the height of the upper end of the abutment plate 6 is set higher than the lowest point of the wheel hub. And as shown in FIGS. 3-6 , along the vehicle length direction, the contact plate 6 extends to the front and rear ends of the frame body 33 of the frame body 3 . With such arrangement, the extension range of the abutment plate 6 is relatively long, which can match more vehicle models with various wheelbases.

It should be noted that, in an alternative embodiment, the extension range of the abutment plate 6 relative to the frame body 3 is not limited to the above-mentioned settings, as long as the abutment plate 6 can reliably move between the push portion 4 and the drive unit 5 Just push the wheel under the action of the wheel.

In another preferred embodiment, as understood with reference to FIGS. 10-14 , in order to facilitate replacement and maintenance, the abutment plate 6 is configured to be detachably connected to the push portion 4 .

Specifically, as shown in FIG. 13 and FIG. 14 , the abutment plate 6 is provided with a first connection hole 61 , the first connection hole 61 includes a first hole segment 62 and a second hole segment 63 connected in sequence, and the first hole The aperture of the section 62 gradually decreases until it is equal to the aperture of the second hole section 63, and the connecting piece 64 passes through the first hole section 62 and the second hole section 63 in sequence and then connects with the pushing part 4, and the connecting piece 64 is far away from one end of the pushing part 4 It does not protrude beyond the end surface of the abutment plate 6 away from the pushing part 4 .

Wherein, the end of the connecting piece 64 away from the pushing portion 4 does not protrude beyond the end surface of the abutment plate 6 away from the pushing portion 4 , so as to prevent the connecting piece 64 from contacting the tread or hub of the wheel and causing damage to the wheel.

As shown in Figures 6-9, the wheelbase adjustment mechanism also includes a rotationally symmetrical mechanism 7, which includes two power output ends, each power output end is provided with a pusher 4, and the two power output ends are located on the vehicle. The drive unit 5 is connected to the rotational symmetry mechanism 7 and is used to drive the two pushing parts 4 along the vehicle width direction to the direction of the wheel placement part 31 on the corresponding side through the rotational symmetry mechanism 7. move.

The rotationally symmetrical mechanism 7 is arranged between the two wheel placing parts 31 and the two pushing parts 4 are all arranged between the two wheels. The middle part of the rod 73 and the rotating member 72 has a rotation center, and the rotating member 72 can rotate relative to the frame body 33 of the frame body 3 along its own rotation center. The first end of the first connecting rod 71 and the first end of the second connecting rod 73 are respectively hinged to the two ends of the rotating member 72, and the first connecting rod 71 and the second connecting rod 73 are symmetrical to the center of rotation of the rotating member 72 . The rotationally symmetrical mechanism 7 also includes two linear guide mechanisms 74 , which are respectively arranged on both sides of the rotating member 72 along the width direction of the vehicle, and the two linear guide mechanisms 74 are relative to the rotation center of the rotating member 72 . Centrosymmetric.

Wherein, the two pushing parts 4 are arranged on the linear guide mechanism 74 on the corresponding side, and the second end of the first link 71 and the second end of the second link 73 are respectively hinged to the linear guide mechanism 74 on the corresponding side. The drive unit 5 is connected to and drives the two linear guide mechanisms 74 to move along the width direction of the vehicle.

In this embodiment, the two pushing parts 4 synchronously push the wheels outward from the inner side of the two wheels, so as to ensure the synchronization of the movement of the two pushing parts 4 and improve the wheelbase adjustment accuracy. Compared with the structure of pushing the wheels from the outside, this solution makes full use of the space between the two wheels, making the structure of the lifting device 2 more compact, occupying less space, and saving materials.

As shown in Figure 9 and Figure 16, rotating member 72 comprises rotating shaft 721 and rotating rod 722, and the first end of rotating shaft 721 is arranged on the middle part of rotating rod 722, and the middle part of rotating rod 722 refers to the middle position of rotating rod 722, and rotating shaft 721 It passes through the frame body 33 and is rotatably connected with the frame body 33 . The rotation member 72 adopts the above structure, and the rotation of the rotation shaft 721 drives the rotation of the rotation rod 722 , and then drives the rotation of the first connecting rod 71 and the second connecting rod 73 . The rotating shaft 721 is arranged in the middle of the rotating rod 722 to realize the rotation of the rotating rod 722 around its center, thereby ensuring that the first connecting rod 71 and the second connecting rod 73 rotate at the same reverse angle, and realize the movement of the two pushing parts 4 in the vehicle width direction The distance is the same.

Further, the rotating member 72 also includes a bearing 723, a bearing seat 724 and a base plate 725. The rotating shaft 721 is rotatably connected to the frame body 33 through the bearing 723. Specifically, the bearing 723 is arranged in the bearing seat 724, and the bearing seat 724 is connected to the base plate 725. The substrate 725 is installed on the frame body 33 . Through the above structure, the frictional force received by the rotating shaft 721 during rotation can be reduced, preventing the wearing of the rotating shaft 721 from affecting the normal use of the track adjusting mechanism, and at the same time, it is convenient to install the rotationally symmetric mechanism 7 .

More preferably, as shown at least in FIGS. 6-9 and 15 , the linear guide mechanism 74 includes a first guide rail 741 , a second guide rail 742 , a slider 743 and a connecting plate 744 , and the first guide rail 741 and the second guide rail 742 move along the vehicle. The width direction extends and is arranged parallel to each other on both sides of the rotation center of the rotational symmetry mechanism 7. The first guide rail 741 and the second guide rail 742 are respectively provided with sliders 743, and the two ends of the connecting plate 744 are respectively connected to the sliders on the corresponding sides. 743, and the pushing part 4 is connected to the connecting plate 744 on the corresponding side.

The second end of the first connecting rod 71 and the second end of the second connecting rod 73 are respectively hinged on the corresponding connecting plate 744 . When the connecting plate 744 receives the force of the first connecting rod 71 or the second connecting rod 73 , it will move along the width direction of the vehicle under the guiding action of the guide rail and the sliding block.

In a preferred embodiment, the lifting device 2 also includes a lifting plane 8 horizontally arranged on the upper end of the frame body 33, and the lifting plane 8 is located between the two wheel placement parts 31, and the rotational symmetry mechanism 7 is located on the lifting plane. 8 below.

In this case, the rotationally symmetrical mechanism 7 can be protected by the lifting plane 8 . In addition, the lifting plane 8 can prevent impurities such as dust from entering the interior of the rotationally symmetrical mechanism 7 to a certain extent, so as to ensure the normal operation of the rotationally symmetrical mechanism 7 and improve the dustproof effect.

As shown in Figure 6-12, the pusher 4 includes two parallel support plates 41 and end connection structures 42. Along the lengthwise direction of the vehicle, the two ends of the end connection structures 42 are respectively connected to the corresponding sides through the support plates 41. The abutment plate 6 is connected to the end connection structure 42 on the connection plate 744 of the . It should be noted that, in FIG. 12 , in order to reflect the structure of the abutment plate 6 and the connection manner between the abutment plate 6 and the end connection structure 42 , FIG. 12 shows part of the connecting piece 64 .

Specifically, the support plate 41 extends upward from below the lifting plane 8 to above the lifting plane 8 , so that the end connection structure 42 is located above the lifting plane 8 and/or the wheel placement portion 31 . The end connection structure 42 includes an end connection plate 43 and a push plate 44 arranged vertically to each other. The push plate 44 is arranged vertically and the abutment plate 6 is connected to the push plate 44. The two ends of the end connection plate 43 are respectively connected to the corresponding positions One end of the support plate 41 protruding from the lifting plane 8 is detachably connected by bolts and nuts.

Wherein, the two ends of the end connecting plate 43 are connected and supported by two support plates 41 , which is beneficial to improve the overall stability of the pushing part 4 and facilitates the disassembly and maintenance of the end connecting structure 42 .

In a preferred embodiment, as shown in FIG. 12 and FIG. 14 , in order to facilitate the alignment connection between the abutment plate 6 and the push plate 44 while protecting the side of the push plate 44 , when the abutment plate 6 is close to the push plate 44 An inwardly recessed accommodating groove 65 is provided on the end surface of the accommodating groove 65 , the push plate 44 is embedded in the accommodating groove 65 , and the abutting plate 6 encloses the side of the push plate 44 .

In combination with the foregoing, in this embodiment, the connection between the abutment plate 6 and the push portion 4 is through the connection between the abutment plate 6 and the push plate 44 . Specifically, a plurality of second connection holes 441 are provided at positions corresponding to the plurality of first connection holes 61 on the push plate 44 , and the connecting piece 64 passes through the corresponding first connection holes 61 and second connection holes 441 to achieve resistance. For the connection between the connection plate 6 and the push plate 44, the aforementioned connecting piece 64 is a screw.

It should be noted that, in other alternative embodiments, the first connecting holes 61 may also be set as connecting holes with the same hole diameter. In other alternative embodiments, the push plate 44 and the abutment plate 6 can also be connected in other ways, such as welding, bonding and so on.

10 and 11 to understand that the position where the support plate 41 is used to connect with the end connecting plate 43 has a first bending portion 411 that bends and extends toward the support plate 41 on the other side. The first bending portion 411 Connecting holes are provided on the top, and connecting holes are also provided on the end connecting plate 43 correspondingly. connect.

The position where the support plate 41 is used to connect with the connecting plate 744 of the linear guide mechanism 74 has a second bending portion 412 that bends and extends toward the support plate 41 on the other side, and the second bending portion 412 is provided with a connecting hole. The connecting plate 744 is also correspondingly provided with connecting holes, and both ends of the connecting plate 744 are detachably connected to the supporting plate 41 through the connecting holes on the connecting plate 744 and the connecting holes on the second bending portion 412 .

In addition, in order to improve the strength of the end connecting plate 43 so as to improve the reliability of the connection between the pushing part 4 and the abutting plate 6, a plurality of reinforcing ribs 431 are provided at the connection between the end connecting plate 43 and the pushing plate 44, and the plurality of reinforcing ribs 431 are arranged at intervals along the length direction of the end connecting plate 43 .

In this embodiment, the push plate 44 and the end connecting plate 43 are integrally structured. In other alternative embodiments, the push plate 44 and the end connecting plate 43 may also be connected by other connection methods, such as welding.

According to the above content, the process of driving the pushing part 4 by the lower driving unit 5 to realize the wheelbase adjustment of the two coaxial wheels will be briefly described below.

The power output end of the drive unit 5 (using the cylinder as the drive unit 5 here), that is, the free end of the telescopic rod of the cylinder, is connected to the end of the connecting plate 744, and is used to push the connecting plate 744 to move along the vehicle width direction, thereby The force is transmitted through the rotationally symmetrical mechanism 7, and then drives the two abutment plates 6 (the two abutment plates 6 correspond to the two wheels) to approach or move away from each other in the vehicle width direction.

In this embodiment, as shown in Figures 4-9, there are two air cylinders. Along the vehicle length direction, the two air cylinders can be respectively arranged at both ends of the connecting plate 744 (that is, one of the air cylinders is located at the end of the first guide rail 741). On the front side, another cylinder is positioned at the rear side of the second guide rail 742), and jointly drives the same connecting plate 744 to move, so that the thrust of the cylinder received by the connecting plate 744 is more balanced, and the stability when the abutting plate 6 is promoted to the wheel is improved.

In this embodiment, the structure of the lifting device 2 is simple, the hardness of the abutment plate 6 is lower than that of the hub, and the hub of the wheel will not be damaged during the process of pushing the wheel.

[Example 2]

This embodiment provides another lifting device 2 applied to the substation. The structure of the lifting device 2 is basically the same as that of the lifting device 2 in Embodiment 1, except that the abutment plate 6 material. The abutting plate 6 in this embodiment is a nylon plate. Wherein, the same reference numerals in this embodiment and the first embodiment refer to the same elements.

The abutting plate 6 in Embodiment 1 is made of rubber, which is relatively soft, easily deformed, and easily damaged by tearing. The material of the abutment plate 6 in this embodiment is nylon, that is, PA. Compared with the rubber in Embodiment 1, nylon has a higher hardness, and is neither easy to be damaged nor deformed.

In other alternative embodiments, the abutment plate 6 can also be made of other polymer materials, and can also be made of at least one of PC, PU, PE, PP, PBT, PPO, PTFE, PVC, POM, ABS, and phenolic plastics. production. The abutment plate 6 can be made of flexible materials, and there are many types of materials to choose from. Wherein, when two or more of the above materials are selected, corresponding types of materials can be spliced to form the abutment plate 6 as long as the hardness of the abutment plate 6 is lower than 100HB. Of course, the hardness of the abutting plate 6 can be set to be lower than 80HB, which is better.

[Example 3]

As shown in Figures 3-6 and Figure 17, Embodiment 3 provides another specific implementation of the lifting device 2. The structure of the wheelbase adjustment mechanism of Embodiment 3 is basically the same as that of Embodiment 1-2. That is: the two wheel placement parts 31 of Embodiment 3 are provided with a roller mechanism 32, the roller mechanism 32 includes a plurality of rollers arranged in a matrix, and the axes of the rollers in the same row are parallel to the longitudinal direction of the vehicle and along the They are arranged sequentially in the vehicle width direction. Wherein, the same reference numerals in this embodiment and the first embodiment refer to the same elements.

The rollers in the roller mechanism 32 are located at the same height, that is, the two groups of roller mechanisms 32 are all arranged horizontally. The wheels are placed on the roller mechanism. When the wheel base is adjusted, the abutment plate 6 pushes the wheels to move along the width direction of the vehicle, and the rollers rotate around their own axes, thereby facilitating the movement of the tires and reducing the distance between the lifting device and the wheels. friction.

In describing the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientation or positional relationship when the device or component is in normal use, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying The devices or components referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

Although the specific implementation of the utility model has been described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present utility model, but these changes and modifications all fall within the protection scope of the present utility model.

Claims (18)

1. A lifting device, comprising a frame body, characterized in that the frame body includes two wheel placement parts arranged at intervals, and the two wheel placement parts are arranged along the vehicle width direction and are used to place two coaxial wheels, the lifting device also includes: A wheelbase adjustment mechanism, which is arranged on the frame body, and the wheelbase adjustment mechanism includes a pushing part and a drive unit that drives the pushing part to move toward the wheel placement part on the corresponding side along the vehicle width direction; Wherein, the pushing part is provided with an abutment plate at a position close to the corresponding wheel placement part, and the abutment plate is used to abut against the corresponding wheel, and the hardness of the material of the abutment plate is lower than that of the said abutment plate. The hub hardness of the wheel. 2. The lifting device according to claim 1, wherein the hardness of the abutment plate is lower than 100HB. 3. The lifting device of claim 1, wherein the abutment plate is made of a polymer material. 4. The lifting device according to claim 3, wherein the abutment plate is made of PA, PC, PU, PE, PP, PBT, PPO, PTFE, PVC, POM, ABS, phenolic plastic or rubber. become. 5. The lifting device according to claim 1, wherein the height of the upper end of the abutment plate is higher than the lowest point of the hub. 6 . The lifting device according to claim 1 , wherein the abutment plate extends to the front and rear ends of the frame body along the length direction of the vehicle. 7 . 7. The lifting device according to claim 1, wherein the abutment plate is detachably connected to the pushing part. 8. The lifting device according to claim 7, wherein a first connection hole is provided on the abutment plate, and the first connection hole includes a first hole section and a second hole section connected in sequence, And the aperture of the first hole section gradually decreases until it is equal to the aperture of the second hole section, the connecting piece passes through the first hole section and the second hole section in turn, and then connects with the pushing part, and the connecting piece is far away from the pushing part one end of which does not protrude beyond the end face of the abutting plate away from the pushing portion. 9. The lifting device according to claim 1, wherein the wheel base adjustment mechanism further comprises a rotationally symmetrical mechanism, and the rotationally symmetrical mechanism comprises two power output ends, each of which is provided with a power output end. There is one pushing part, and the two power output ends move synchronously in opposite directions in the vehicle width direction, and the driving unit is connected to the rotationally symmetrical mechanism and is used to drive the two The pushing parts move synchronously along the width direction of the vehicle towards the directions of the wheel placement parts on the corresponding sides respectively. 10. The lifting device according to claim 9, wherein the two pushing parts are both arranged between the two wheels. 11. The lifting device according to claim 10, wherein the rotationally symmetrical mechanism is arranged between the two wheel placement parts, and the rotationally symmetrical mechanism comprises a first connecting rod, a rotating member connected in sequence With the second connecting rod, the middle part of the rotating member has a rotation center, and the rotating member can rotate relative to the frame body along its own rotation center; The first end of the first connecting rod and the first end of the second connecting rod are respectively hinged to the two ends of the rotating member, and the first connecting rod and the second connecting rod rotate relative to the The center of rotation of the part is symmetrical; The rotational symmetry mechanism further includes two linear guide mechanisms. Along the vehicle width direction, the two linear guide mechanisms are respectively arranged on both sides of the rotating member, and the two linear guide mechanisms are relatively to the rotating member. The center of rotation of the part is symmetrical; The two pushing parts are arranged on the linear guide mechanism on the corresponding side, and the second end of the first connecting rod and the second end of the second connecting rod are respectively hinged to the linear guide mechanism on the corresponding side ; The drive unit is connected and drives the two linear guide mechanisms to move along the width direction of the vehicle. 12. The lifting device according to claim 11, wherein the linear guide mechanism comprises a first guide rail, a second guide rail, a slider and a connecting plate, the first guide rail and the second guide rail are along the vehicle extend in the width direction and are arranged parallel to each other on both sides of the rotation center of the rotational symmetry mechanism, the first guide rail and the second guide rail are respectively provided with the sliders, and the two ends of the connecting plate are respectively connected to on the slider on the corresponding side, and the pushing part is connected to the connecting plate on the corresponding side; The second end of the first connecting rod and the second end of the second connecting rod are respectively hinged on the corresponding connecting plates. 13. The lifting device according to claim 11, characterized in that, the lifting device further comprises a lifting plane horizontally arranged on the upper end of the frame body, and the lifting plane is located between the two wheels Between the placement parts, the rotational symmetry mechanism is located below the lifting plane. 14. The lifting device according to claim 13, wherein the pushing part comprises two supporting plates parallel to each other and the end connection structure, along the vehicle length direction, the two ends of the end connection structure The support plates are respectively connected to the connection plates on the corresponding sides, and the abutment plates are connected to the end connection structure. 15. The lifting device according to claim 14, characterized in that, the support plate extends upward from below the lifting plane to above the lifting plane, so that the end connection structure is located on the above the lifting surface and/or the wheel rest. 16. The lifting device according to claim 14, wherein the end connection structure comprises an end connection plate and a push plate arranged perpendicular to each other, the push plate is vertically arranged and the abutment plate is connected On the push plate, two ends of the end connecting plate are respectively detachably connected to one end of the corresponding supporting plate protruding from the lifting plane. 17. The lifting device according to claim 16, wherein the abutting plate has a receiving groove, and the push plate is embedded in the receiving groove. 18. A power exchange station, characterized in that the power exchange station includes the lifting device according to any one of claims 1-17, and the lifting device is used to lift two coaxial wheels of the vehicle .

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