WO2021147538A1 - 车轮夹持装置 - Google Patents

车轮夹持装置 Download PDF

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Publication number
WO2021147538A1
WO2021147538A1 PCT/CN2020/134520 CN2020134520W WO2021147538A1 WO 2021147538 A1 WO2021147538 A1 WO 2021147538A1 CN 2020134520 W CN2020134520 W CN 2020134520W WO 2021147538 A1 WO2021147538 A1 WO 2021147538A1
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WIPO (PCT)
Prior art keywords
clamping
wheel
connecting shaft
moving unit
clamping device
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PCT/CN2020/134520
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English (en)
French (fr)
Inventor
刘连军
张凯凯
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深圳市道通科技股份有限公司
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Publication of WO2021147538A1 publication Critical patent/WO2021147538A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
    • F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle

Definitions

  • This application relates to the technical field of automobile maintenance devices, and in particular to a wheel clamping device.
  • the wheel of an automobile includes a wheel hub and a tire sleeved on the circumferential surface of the wheel hub.
  • workers often need to install various auxiliary equipment on the wheel hub.
  • the worker clamps and fixes the wheel clamping device on the wheel first, and then installs the required auxiliary equipment on the wheel hub by means of the wheel clamping device.
  • the wheel clamping device is generally clamped on the cylindrical surface of the wheel hub by its multiple clamping jaws. Due to the high machining accuracy of the wheel hub, this clamping method can ensure high installation accuracy of the wheel clamping device, thereby ensuring the installation accuracy of the above-mentioned auxiliary equipment.
  • the inventor of the present invention discovered in the process of implementing the present invention that since the clamping jaws and the hub are generally made of metal materials, the clamping force generated by the wheel clamping device may damage the cylindrical surface of the hub.
  • the embodiment of the present invention aims to provide a wheel clamping device to solve the technical problem that the clamping force generated by the wheel clamping device easily damages the wheel hub when the wheel clamping device is clamped to the tire.
  • a wheel clamping device includes:
  • Mobile module including two mobile units
  • the driving module is connected to the two mobile units, and is used to drive the two mobile units to approach or move away from each other, and the moving distances of the two mobile units are the same;
  • the clamping module includes two clamping jaws arranged oppositely, one of the clamping jaws is correspondingly installed on a moving unit, and the clamping jaw includes a clamping part;
  • the two clamping jaws are used to jointly clamp the tire of the outer wheel, so that the clamping portion is aligned with the center of the wheel hub.
  • the clamping jaw further includes a connecting portion installed on the moving unit, and the connecting portion is used to connect the clamping portion and the moving unit.
  • the spacer is mounted on the moving unit, and the spacer is used to prevent the connecting portion when the two clamping jaws clamp the tire together. In contact with the hub.
  • the connecting portion of at least one clamping jaw is provided with the spacer on the side facing the corresponding clamping portion, and the spacer is an elastic rubber pad;
  • the spacer is used for abutting against the end surface of the wheel hub when the two clamping jaws cooperate to clamp the tire, so as to prevent the connecting portion from contacting the wheel hub.
  • the connecting portion of at least one clamping jaw is provided with the spacer on the side facing the corresponding clamping portion;
  • the spacer is used for abutting against the end surface of the tire when the two clamping jaws cooperate to clamp the tire, so that there is a gap between the connecting portion and the wheel hub.
  • the spacer and the connecting portion of the at least one clamping jaw are integrally formed.
  • the clamping portion is provided with at least two serrations at one end facing the other clamping jaw, and the at least two serrations are arranged in parallel along the direction in which the clamping portion extends.
  • At least one clamping jaw is pivotally connected with the corresponding moving unit, so that the at least one clamping portion can slide along the circumferential surface of the tire.
  • the at least one clamping jaw is rotatably connected with the corresponding moving unit through a first connecting shaft assembly
  • One of the connecting portion of the at least one clamping jaw and the corresponding moving unit is fixed to the first connecting shaft assembly, and the connecting portion of the at least one clamping jaw is fixed to the other one of the corresponding moving units.
  • the first connecting shaft assembly includes a first connecting shaft and a first elastic rubber ring, and the first elastic rubber ring is sleeved on the first connecting shaft and connected to the first Hole interference fit.
  • the second connecting shaft assembly includes a second connecting shaft, the axis of the second connecting shaft is parallel to the rotation axis of the at least one clamping jaw;
  • One of the connecting portion of the at least one jaw and the corresponding moving unit is provided with the second connecting shaft, and the connecting portion of the at least one jaw and the other of the corresponding moving unit is provided with A second connecting hole, the diameter of the second connecting hole is greater than the diameter of the second connecting shaft, and the second connecting shaft is inserted into the second connecting hole.
  • the second connecting shaft assembly further includes a second elastic rubber ring, the second elastic rubber ring sleeved on the second connecting shaft and interference fit with the second connecting hole .
  • the included angle between the connecting portion and the clamping portion of the same clamping jaw is less than 90 degrees.
  • the driving module includes:
  • a guide rod, the two moving units are in sliding fit with the guide rod;
  • the screw rod includes a first threaded portion and a second threaded portion, the first threaded portion and the second threaded portion have opposite directions of rotation and the pitch is equal, and the moving unit is threadedly engaged with the first threaded portion, The other moving unit is threadedly engaged with the second threaded portion.
  • the clamping jaw is detachably mounted on the moving unit.
  • the moving module of the wheel clamping device includes a moving module, a driving module, a clamping module, and a clamping part.
  • the mobile module includes two mobile units arranged oppositely.
  • the driving module is connected to the two moving units, and is used to drive the two moving units to approach or move away from each other, and the moving distance of the two moving units is the same.
  • the clamping module includes two clamping jaws arranged oppositely, one clamping jaw is correspondingly installed on a moving unit, and the clamping jaw includes a clamping part.
  • the clamping part is connected with the driving module, and along the movement direction of the moving unit, the clamping part is located at the center position between the clamping parts of the two clamping jaws.
  • the two clamping jaws are used to jointly clamp the outer wheel tire, so that the clamping part is aligned with the center of the wheel hub.
  • the clamping jaws only need to be clamped on the circumferential surface of the tire, which can effectively avoid the disadvantage of damaging the wheel hub by the clamping force generated by the wheel clamping device.
  • it can also be ensured that after the two clamping jaws are clamped in place, the clamping portion is aligned with the center of the hub.
  • FIG. 1 is a three-dimensional schematic diagram of a wheel clamping device provided by one of the embodiments of the present invention
  • Fig. 2 is a perspective schematic view of the wheel clamping device in Fig. 1 in one direction;
  • Fig. 3 is a partial exploded schematic view of the wheel clamping device in Fig. 1;
  • Fig. 4 is a partial enlarged schematic diagram of A in Fig. 3;
  • FIG. 5 is a three-dimensional schematic diagram of a wheel clamping device provided by another embodiment of the present invention.
  • Fig. 6 is a partial enlarged schematic diagram of B in Fig. 5.
  • the "installation” includes welding, screwing, clamping, bonding, etc. to fix or restrict a certain element or device to a specific position or place, and the element or device can be held in a specific position or place. It can also move within a limited range without moving, and the element or device can be disassembled or cannot be disassembled after being fixed or restricted to a specific position or place, which is not limited in the embodiment of the present invention.
  • FIGS. 1 and 2 respectively show a three-dimensional schematic diagram of a wheel 600 clamped by a wheel clamping device provided by an embodiment of the present invention, and a three-dimensional schematic diagram of one direction of the wheel clamping device.
  • the wheel clamping device includes a moving module 100, a driving module 200, a clamping module 300 and a clamping part 400.
  • the mobile module 100 includes two mobile units 110 arranged oppositely.
  • the driving module is connected to the two moving units 110, and is used to drive the two moving units 110 to approach or move away from each other, and the moving distances of the two moving units 110 are the same.
  • the clamping module 300 includes two clamping jaws 310 arranged opposite to each other.
  • One clamping jaw 310 is correspondingly installed on a moving unit 110, and the clamping jaw 310 includes a clamping portion 312.
  • the clamping portion 400 is connected to the driving module 200, and along the movement direction of the moving unit 110, the clamping portion 400 is located at the center between the clamping portions 312 of the two clamping jaws 310.
  • the two clamping jaws 310 are used to jointly clamp the tire 610 of the outer wheel 600 so that the clamping portion is aligned with the center of the hub 620 of the wheel 600.
  • a moving unit 110 includes a moving main body 111 and two wings 112 connected to the moving main body 111. One end of the two wings 112 is connected to the moving main body 111 and the other end extends away from the other moving unit 110.
  • the driving module 200 includes two guide rods 210 and a screw rod 220.
  • the two guide rods 210 are arranged in parallel, one end of the two guide rods 210 is fixed by a connecting plate 230, and the other end of the two guide rods 210 is fixed by another connecting plate 230.
  • the two moving units 110 are each provided with two guide holes (not shown) parallel to each other and respectively adapted to the two guide rods 210, and the two guide rods 210 are respectively inserted into the two guide holes so that each moving unit 110 is connected to the The two guide rods are in sliding fit.
  • the screw 220 and the guide rod 210 are arranged in parallel and located in the center position between the two guide rods 210, that is: the two guide rods 210 are axisymmetric with respect to the screw 220;
  • the connecting plate 230 is relatively fixed, and the screw rod 220 can only rotate around the circumferential direction.
  • the screw rod 220 includes a first threaded part and a second threaded part.
  • the first threaded part and the second threaded part have opposite directions and equal pitches.
  • One moving unit 110 is threadedly engaged with the first threaded part, and the other moving unit 110 Threaded fit with the second threaded part.
  • the two moving units 110 can be driven to move toward or away from each other at the same time, so that the two moving units 110 are close to or away from each other, and the moving distances of the two moving units 110 are the same.
  • the number of guide rods may also be more than one other number.
  • FIG. 2 includes two clamping jaws 310 arranged oppositely, and one clamping jaw 310 is correspondingly installed on a moving unit 110.
  • the clamping jaw 310 includes a connecting portion 311 and a clamping portion 312.
  • the connecting portion 311 is installed on the wing portion 112 of the mobile unit 110 and is used to connect the clamping portion 312 and the mobile unit 110.
  • the connecting portion 311 has a flat plate-like structure as a whole, one end of which is connected to the end of the clamping portion 312 close to the moving unit 110, and the other end extends in a direction close to the other clamping jaw 310.
  • One end of the clamping portion 312 is connected to an end of the connecting portion 311 away from the other clamping jaw 310, and the other end extends in a direction away from the moving unit 110, and a predetermined included angle is formed between the clamping portion 312 and the connecting portion 311.
  • the number of clamping modules 300 is two groups, and the two groups of clamping modules 300 are respectively arranged on both sides of the screw rod 220 and are axially symmetrical with respect to the screw rod 220.
  • the circumferential surface of most tires 610 is provided with a number of anti-slip grooves distributed in a circumferential array around the axis of the tire 610, in order to facilitate the clamping module 300 to better clamp the tire 610, thereby avoiding a clamping jaw 310
  • at least one clamping jaw 310 is pivotally connected to the corresponding moving unit 110, so that the at least one clamping jaw 310 is clamped
  • the part can slide along the circumferential surface of the tire 610 (that is, the cylindrical side surface of the tire), so as to adapt to the groove structure on the circumferential surface of the tire 610.
  • the "at least one clamping jaw” mentioned in this paragraph should be understood as at least one clamping jaw in the wheel clamping device, that is: when the number of clamping modules 300 is one set, the two clamping jaws At least one of the clamping jaws is pivotally connected to the corresponding moving unit. When the number of clamping modules 300 is more than two groups, at least one of the four or more jaws is pivotally connected to the corresponding moving unit.
  • the "pivoting connection” in this paragraph means a rotational connection between two parts connected to each other through a shaft-like part.
  • each of the above-mentioned clamping jaws 310 is respectively rotatably connected with the corresponding moving unit 110 through the first connecting shaft assembly 320.
  • first connecting shaft assembly 320 is fixed to the end of the connecting portion 311 close to the corresponding moving unit 110, and the other end extends to the end facing away from the corresponding clamping portion 312;
  • the corresponding moving unit 110 is provided with a first connecting hole 113 that is adapted to the first connecting shaft assembly 320 at one end close to the connecting portion 311; the first connecting shaft assembly 320 is inserted into the first connecting hole 113 to clamp
  • the claw 310 is rotatably connected with the corresponding moving unit 110.
  • the first connecting hole 113 may also be provided at the connecting portion of the clamping jaw 310.
  • the first connecting shaft assembly 320 is provided at the corresponding moving unit 110; in addition, the moving The unit 110 and the clamping jaw 310 can also be pivotally connected by hinges, bearing connections and other methods, which are not limited here.
  • the above-mentioned first connecting shaft The assembly 320 includes a first connecting shaft (not shown) and a first elastic rubber ring (not shown).
  • One end of the first connecting shaft is fixed to the end of the connecting portion 311 close to the moving unit 110, and the other end extends in a direction away from the corresponding clamping portion 312, the first connecting shaft is inserted into the first connecting hole 113, and the first elastic rubber ring is sleeved.
  • the first connecting shaft It is arranged on the first connecting shaft and has an interference fit with the first connecting hole 113. Because the first elastic rubber ring has the characteristics of elasticity, on the one hand, it can install the clamping jaw 310 on the mobile unit through an interference fit with the first connecting hole 113; on the other hand, it can also be deformed from the first Leave in the connecting hole 113.
  • the wheel clamping device in order to enable the clamping jaw 310 to rotate only within a small angle range, so as to avoid excessive freedom of the clamping jaw 310 and inconvenient adjustment of its position, the wheel clamping device further includes a second connecting shaft assembly 330.
  • the axis of the second connecting shaft assembly 330 is arranged in parallel with the rotation axis of the clamping jaw 410, which specifically includes a second connecting shaft (not shown), that is, the second connecting shaft is arranged in parallel with the first connecting shaft assembly 320 .
  • the second connecting shaft is also fixed to the end of the connecting portion 311 close to the wing portion 112 and extends in a direction away from the clamping portion 312; the corresponding moving unit 110 is provided with a second connecting hole 114 at the end close to the connecting portion 311.
  • the diameter of the second connecting hole 114 is slightly larger than the diameter of the second connecting shaft.
  • the second connecting shaft is inserted into the second connecting hole 114. Since there is a certain margin between the inner wall of the second connecting hole and the second connecting shaft, this margin The clamping jaws can be rotated only slightly, so that the two clamping jaws 310 are clamped on the surface of the circumferential surface of the tire 610 or simultaneously clamped on the grooves of the circumferential surface of the tire 610.
  • the second connecting hole may also be provided in the connecting portion 311, and accordingly, the second connecting shaft is provided in the corresponding moving unit.
  • the second connecting shaft assembly further includes a second elastic rubber ring ( Not shown).
  • the second elastic rubber ring is sleeved on the second connecting shaft and is in interference fit with the second connecting hole.
  • the arrangement of the second elastic rubber ring binds the second connecting shaft to a stable state to prevent the second connecting shaft from rotating freely; on the other hand, when the second connecting shaft has a tendency to rotate under the action of external force, the first The second elastic rubber ring can be squeezed and deformed under the action of an external force, thereby displacing the second connecting shaft, so that the clamping jaw 310 rotates relative to the first connecting shaft assembly 320 within a small angle range.
  • the interference fit between the second elastic rubber ring and the second connecting hole can also facilitate the disassembly and assembly of the clamping jaw 310, which is convenient for the user to replace the clamping jaws of different specifications.
  • the clamping portion 312 is provided with at least two serrations 313 at one end facing the other clamping jaw 310, and the at least two serrations 313 clamp along the The extending directions of the portions 312 are arranged in parallel.
  • the tip of the saw teeth 313 can press the surface of the tire 610, so that the contact surface between the tire 610 and the clamping portion 312 is in a sawtooth shape. This effectively prevents slippage between the gripper 310 and the tire 610.
  • the clamping portion 312 may react against the tire 610. Deformation under force: along the extending direction of the clamping portion 312, the end of the clamping portion 312 close to the connecting portion 311 may move closer to the moving unit 110 relative to the end of the clamping portion 312 close to the connecting portion 311, then the connecting portion 311 and the clamp The angle between the holding parts 312 will be widened. When the included angle is expanded to greater than 90 degrees, the clamping effect of the two clamping jaws 310 is relatively poor.
  • the present invention designs the preset included angle in the free state to be less than 90 degrees. That is, when the clamping portion 312 is deformed to be perpendicular to the connecting portion 311, there is already a sufficient clamping force between the clamping portion 312 and the tire 610, which is greater than the clamping force required by the wheel clamping device ; So that the two in the process of clamping the wheel 600, the angle between the connecting portion and the clamping portion always does not exceed 90 degrees.
  • the spacer 500 is installed in the mobile unit 110 and is used to prevent the connecting portion 311 from the outer wheel hub during the process of clamping the outer tire 610 together by the two clamping jaws 310 620 contacts.
  • the spacer 500 is an elastic rubber pad
  • the connecting portion 311 of each clamping jaw 310 is provided with a spacer 500 on the side facing the corresponding clamping portion.
  • the spacer 500 is away from the connecting portion 311 of the clamping jaw 310.
  • One end of the clamping portion 312 extends to the end close to the corresponding clamping portion 312, that is, the elastic rubber pad is indirectly mounted to the moving unit 110 through the clamping claw 310.
  • the spacer 500 is used to abut the end surface of the hub 620 when the two clamping jaws of the clamping module cooperate to clamp the tire 610, thereby avoiding the connecting portion 311 is in contact with the end surface of the hub 620.
  • the above-mentioned elastic rubber pad is a rubber rubber pad or a silicone rubber pad. It is understood that, in other embodiments of the present invention, the above-mentioned elastic rubber pad (isolator) can also be other elastic rubber pads.
  • the spacer can also be directly installed on the moving body or the wing part of the mobile unit, as long as it can prevent the first connecting part from contacting the wheel hub; in addition, in the same wheel clamping device, It is also possible that the connecting portion with only one clamping jaw is provided with the aforementioned spacer.
  • the spacer 500 is not limited to the elastic rubber pad provided at the above position, and only the spacer 500 can ensure that the connecting portion 311 is prevented from contacting the wheel hub 620 during the process of clamping the tire 610 by the two clamping jaws 310.
  • Figures 5 and 6 respectively show a three-dimensional schematic diagram of a wheel clamping device with another spacer 500', and a partial enlarged schematic diagram at B. Please also combine Figures 1 to 4; among them, each clip The connecting portion 311 of the claw 310 is provided with a spacer 500' on the side facing the corresponding clamping portion 312.
  • the spacer 500' extends from the end of the connecting portion 311 close to the corresponding clamping portion 312 to the distance away from the corresponding clamping portion 312. One end extends.
  • the spacer 500 ′ is used to abut against the end surface of the tire 610 when the two clamping jaws cooperate to clamp the tire 610, so that there is a gap between the connecting portion 311 and the hub 620, so as to avoid contact between the connecting portion 311 and the hub 620.
  • the spacer 500' and the connecting portion 311 are integrally formed, and the material is a metal material; of course, the present invention does not specifically limit the material of the spacer 500', and the material can also be rubber, silica gel and other materials.
  • the spacer 500 ′ itself only contacts the end surface of the tire 610 and does not contact the wheel hub 620.
  • the spacer 500 provided by the first embodiment abuts against the hub 620, friction still exists between the spacer 500 and the hub 620.
  • the elastic rubber pad used in the spacer 500' will not damage the hub 620, the aforementioned friction is still possible It has a certain impact on the movement process of the two clamping jaws; in contrast, the spacer 500' provided by this embodiment can not only make the two clamps avoid the hub 620 as a whole, but also does not contact the hub 620, so the spacer 500' The isolation effect is better.
  • clamping part 400 is fixedly installed on the driving module 200 through the above-mentioned two guide rods 210 and is located between the two moving units 110.
  • the clamping portion is located at the center between the clamping portions 312 of the two clamping jaws of the same clamping module 300, and the clamping portion is used to install detection elements such as lasers and targets. Then, when the two moving units 110 are simultaneously brought to the center to clamp the two clamping jaws 310 of the same clamping module 300 on the surface of the tire 610, the clamping portion is exactly aligned with the center of the wheel hub.
  • the wheel clamping device provided by the embodiment of the present invention includes a moving module 100, a driving module 200, a clamping module 300, and a clamping part 400.
  • the mobile module 100 includes two mobile units 110 arranged oppositely.
  • the driving module is connected to the two moving units 110, and is used to drive the two moving units 110 to approach or move away from each other, and the moving distances of the two moving units 110 are the same.
  • the clamping module 300 includes two clamping jaws 310 arranged opposite to each other. One clamping jaw 310 is correspondingly installed on a moving unit 110, and the clamping jaw 310 includes a clamping portion 312.
  • the clamping portion 400 is connected to the driving module 200, and along the movement direction of the moving unit 110, the clamping portion is located at the center between the clamping portions 312 of the two clamping jaws 310.
  • the two clamping jaws 310 are used to jointly clamp the tire 610 of the outer wheel 600 so that the clamping portion is aligned with the center of the hub 620 of the wheel 600.
  • the clamping jaw 310 only needs to be clamped on the circumferential surface of the tire 610, and the clamping force generated by the wheel clamping device no longer damages the wheel hub 620.
  • the wheel clamping device can also ensure that after the two clamping jaws 310 are clamped in place, the clamping portion is aligned with the center of the hub.
  • clamping jaw 310 can also be detachably mounted to the corresponding mobile unit 110 in other ways, so as to facilitate the replacement of clamping jaws 310 of different specifications.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Tires In General (AREA)

Abstract

一种车轮夹持装置，该车轮夹持装置包括移动模块(100)，包括两移动单元(110)；驱动模块(200)，与两移动单元(110)连接，用于驱动两移动单元(110)相互靠近或者远离，两移动单元(110)的移动距离相同；夹持模块(300)，包括相对设置的两夹爪(310)，一夹爪(310)对应安装于一移动单元(110)，夹爪(310)包括夹持部(312)；装夹部(400)，沿移动单元(110)的运动方向，装夹部(400)位于两夹爪(310)的夹持部(312)之间的中心位置；其中，两夹爪(310)用于共同配合夹持外部的车轮(600)的轮胎(610)，以使装夹部(400)与车轮(600)的轮毂(620)中心对齐。该车轮夹持装置的夹爪(310)仅需夹持在轮胎(610)的周向面，有效避免了夹爪(310)产生的夹紧力损伤轮毂(620)的弊端；此外，亦能保证两夹爪(310)夹持到位后，装夹部(400)与轮毂(620)中心对齐。

Description

车轮夹持装置
本申请要求于2020年1月21日提交中国专利局、申请号为202010072014.X、申请名称为“车轮夹持装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及汽车维修装置技术领域，尤其涉及一种车轮夹持装置。
背景技术
汽车的车轮包括轮毂以及套设于轮毂周向面上的轮胎。在汽车维修或检测的过程中，工作人员经常需要在轮毂上安装各种辅助设备。一般地，工作人员先将车轮夹持装置夹持固定于车轮上，然后再借助该车轮夹持装置将所需的辅助设备安装于轮毂即可。目前，车轮夹持装置一般通过其多个夹爪夹持于轮毂的圆柱面。由于轮毂的加工精度较高，故该夹持方式能够保证车轮夹持装置较高的安装精度，从而确保上述辅助设备的安装精度。
本发明的发明人在实现本发明的过程中发现：由于夹爪与轮毂一般均为金属材料制成，则车轮夹持装置产生的夹紧力可能损伤轮毂的圆柱面。
发明内容
本发明实施例旨在提供一种车轮夹持装置，以解决目前车轮夹持装置夹持于轮胎时，车轮夹持装置产生的夹紧力容易损伤轮毂的技术问题。
本发明实施例解决其技术问题采用以下技术方案：
一种车轮夹持装置，包括：
移动模块，包括两移动单元；
驱动模块，与所述两移动单元连接，用于驱动两所述移动单元相互靠近或者远离，且两所述移动单元的移动距离相同；
夹持模块，包括相对设置的两夹爪，一所述夹爪对应安装于一所述移动单元，所述夹爪包括夹持部；以及
装夹部，与所述驱动模块连接，所述装夹部位于所述两夹爪之间的中心位置；
其中，所述两夹爪用于共同配合夹持外部的车轮的轮胎，以使所述装夹部与所述车轮的轮毂中心对齐。
作为上述技术方案的进一步改进方案，所述夹爪还包括连接部，所述连接部安装于所述移动单元，所述连接部用于连接所述夹持部与所述移动单元。
作为上述技术方案的进一步改进方案，还包括隔离件，所述隔离件安装于所述移动单元，所述隔离件用于在所述两夹爪共同夹持所述轮胎时，阻止所述连接部与所述轮毂接触。
作为上述技术方案的进一步改进方案，至少一夹爪的连接部于朝向对应的夹持部的侧面设有所述隔离件，所述隔离件为弹性胶垫；
所述隔离件用于在所述两夹爪共同配合夹持所述轮胎时，与所述轮毂的端面抵接，以避免所述连接部与所述轮毂接触。
作为上述技术方案的进一步改进方案，至少一夹爪的连接部于朝向对应的夹持部的侧面设有所述隔离件；
所述隔离件用于在所述两夹爪共同配合夹持所述轮胎时，与所述轮胎的端面抵接，以使所述连接部与所述轮毂之间具有间隙。
作为上述技术方案的进一步改进方案，所述隔离件与所述至少一夹爪的连接部一体成型。
作为上述技术方案的进一步改进方案，所述夹持部朝向另一夹爪的一端设有至少两个锯齿，所述至少两个锯齿沿所述夹持部延伸的方向平行排列。
作为上述技术方案的进一步改进方案，至少一个夹爪与对应的移动单元枢转连接，以使所述至少一个夹持部可沿所述轮胎的周向面滑动。
作为上述技术方案的进一步改进方案，所述至少一个夹爪通过第一连接轴组件与所述对应的移动单元转动连接；
所述至少一个夹爪的连接部与所述对应的移动单元中的一个与所述第一连接轴组件固定，所述至少一个夹爪的连接部与所述对应的移动单元中的另一个设有与所述第一连接轴组件相适配的第一连接孔，所述第一连接轴组件插入所述第一连接孔。
作为上述技术方案的进一步改进方案，所述第一连接轴组件包括第一连接轴与第一弹性胶圈，所述第一弹性胶圈套设于所述第一连接轴并与所述第一连接孔过盈配合。
作为上述技术方案的进一步改进方案，还包括第二连接轴组件，所述第二连接轴组件包括第二连接轴，所述第二连接轴的轴线与所述至少一个夹爪的转动轴线平行；
所述至少一个夹爪的连接部与所述对应的移动单元中的一个设有所述第二连接轴，所述至少一个夹爪的连接部与所述对应的移动单元中的另一个设有第二连接孔，所述第二连接孔的直径大于所述第二连接轴的直径，所述第二连接轴插入所述第二连接孔。
作为上述技术方案的进一步改进方案，所述第二连接轴组件还包括第二弹性胶圈，所述第二弹性胶圈套设于所述第二连接轴且与所述第二连接孔过盈配合。
作为上述技术方案的进一步改进方案，同一所述夹爪的连接部与夹持部之间的夹角小于90度。
作为上述技术方案的进一步改进方案，所述驱动模块包括：
导杆，两所述移动单元均与所述导杆滑动配合；以及
丝杆，包括第一螺纹部与第二螺纹部，所述第一螺纹部与所述第二螺纹部 的旋向相反且螺距相等，一所述移动单元与所述第一螺纹部螺纹配合，另一所述移动单元与所述第二螺纹部螺纹配合。
作为上述技术方案的进一步改进方案，所述夹爪可拆卸地安装于所述移动单元。
本发明的有益效果是：
本发明实施例提供的车轮夹持装置移动模块包括移动模块、驱动模块、夹持模块以及装夹部。其中，移动模块包括相对设置的两移动单元。驱动模块与两移动单元连接，其用于驱动两移动单元相互靠近或者远离，并且两移动单元的移动距离相同。夹持模块包括相对设置的两夹爪，一夹爪对应安装于一移动单元，该夹爪包括夹持部。装夹部与驱动模块连接，沿移动单元的运动方向，该装夹部位于两夹爪的夹持部之间的中心位置。两夹爪用于共同配合夹持外部的车轮轮胎，以使装夹部与车轮的轮毂的中心对齐。通过上述方式，夹爪仅需夹持在轮胎的周向面，其能够有效避免车轮夹持装置产生的夹紧力损伤轮毂的弊端。此外，亦能够保证两夹爪夹持到位后，装夹部与轮毂中心对齐。
附图说明
一个或多个实施例通过与之对应的附图进行示例性说明，这些示例性说明并不构成对实施例的限定，附图中具有相同参考数字标号的元件表示为类似的元件，除非有特别申明，附图中的图不构成比例限制。
图1为本发明其中一实施例提供的车轮夹持装置的立体示意图；
图2为图1中车轮夹持装置的一个方向的立体示意图；
图3为图1中车轮夹持装置的局部分解示意图；
图4为图3中A处的局部放大示意图；
图5为本发明其中另一实施例提供的车轮夹持装置的立体示意图；
图6为图5中B处的局部放大示意图。
具体实施方式
为了便于理解本发明，下面结合附图和具体实施例，对本发明进行更详细的说明。需要说明的是，当元件被表述“固定于”/“固接于”/“安装于”另一个元件，它可以直接在另一个元件上、或者其间可以存在一个或多个居中的元件。当一个元件被表述“连接”另一个元件，它可以是直接连接到另一个元件、或者其间可以存在一个或多个居中的元件。本说明书所使用的术语“垂直的”、“水平的”、“左”、“右”、“内”、“外”以及类似的表述只是为了说明的目的。
除非另有定义，本说明书所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是用于限制本发明。本说明书所使用的 术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
此外，下面所描述的本发明不同实施例中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。
在本说明书中，所述“安装”包括焊接、螺接、卡接、粘合等方式将某一元件或装置固定或限制于特定位置或地方，所述元件或装置可在特定位置或地方保持不动也可在限定范围内活动，所述元件或装置固定或限制于特定位置或地方后可进行拆卸也可不能进行拆卸，在本发明实施例中不作限制。
请一并参阅图1及图2，其分别示出了本发明其中一实施例提供的车轮夹持装置夹持有车轮600的立体示意图，以及该车轮夹持装置的一个方向的立体示意图，该车轮夹持装置包括移动模块100、驱动模块200、夹持模块300以及装夹部400。其中，移动模块100包括相对设置的两移动单元110。驱动模块与两移动单元110连接，其用于驱动两移动单元110相互靠近或者远离，并且两移动单元110的移动距离相同。夹持模块300包括相对设置的两夹爪310，一夹爪310对应安装于一移动单元110，该夹爪310包括夹持部312。装夹部400与驱动模块200连接，沿移动单元110的运动方向，该装夹部400位于两夹爪310的夹持部312之间的中心位置。两夹爪310用于共同配合夹持外部的车轮600的轮胎610，以使装夹部与车轮600的轮毂620的中心对齐。
对于上述移动模块100，请参照图2，同时结合图1，其包括相对设置的两移动单元110。其中，一移动单元110包括一移动主体111，以及与移动主体111连接的两翼部112，该两翼部112的一端与移动主体111连接，另一端向远离另一移动单元110的方向延伸。
对于上述驱动模块200，请参照图2，同时结合图1，其包括两导杆210与丝杆220。其中，两导杆210之间平行设置，两导杆210的一端通过一连接板230固定，两导杆210的另一端通过另一连接板230固定。两移动单元110均设有彼此平行且分别与两导杆210相适配的两导孔(未示出)，该两导杆210分别插入两导孔，以使每一移动单元110均与该两导杆滑动配合。丝杆220与导杆210平行设置且位于两导杆210之间的中心位置，即是：两导杆210相对丝杆220呈轴对称；沿丝杆220的轴向，其两端分别与两连接板230相对固定，丝杆220仅可绕周向转动。丝杆220包括第一螺纹部与第二螺纹部，第一螺纹部与第二螺纹部的旋向相反且螺距相等，一移动单元110与第一螺纹部之间螺纹配合，另一移动单元110与第二螺纹部之间螺纹配合。则，通过转动丝杆220，可驱动两移动单元110同时相向运动或背向运动，以使两移动单元110之间彼此靠近或者远离，同时两移动单元110的移动距离相同。可以理解的是，在本发明的其他实施例中，导杆的数量还可以为一个以上的其他数量。
对于上述夹持模块300，请继续参照图2，其包括相对设置的两夹爪310，一夹爪310对应安装于一移动单元110。夹爪310包括连接部311与夹持部312。其中，连接部311安装于移动单元110的翼部112，其用于连接夹持部312与移动单元110。连接部311整体呈一扁平的板状结构，其一端与夹持部312靠 近移动单元110的一端连接，另一端向靠近另一夹爪310的方向延伸。夹持部312的一端与连接部311远离另一夹爪310的一端连接，另一端向远离移动单元110的方向延伸，则夹持部312与连接部311之间形成一预设夹角。本实施例中，夹持模块300的数量为两组，该两组夹持模块300分别设于上述丝杆220的两侧，且相对丝杆220呈轴对称。
进一步地，由于大多数轮胎610的周向面设有绕轮胎610轴线呈圆周阵列分布的若干个防滑凹槽，为便于夹持模块300能够更好地夹持轮胎610，从而避免一夹爪310夹持在凹槽内，而另一夹爪310夹持于凹槽外的情形，至少一夹爪310与对应的移动单元110之间枢转连接，以使上述至少一个夹爪310的夹持部可沿轮胎610的周向面(即是轮胎的柱状侧面)滑动，从而适应轮胎610周向面上的凹槽结构。值得注意的是：本段落中所述的“至少一个夹爪”应当理解为该车轮夹持装置中的至少一个夹爪，即是：当夹持模块300的数量为一组时，两夹爪中至少一个夹爪与对应的移动单元枢转连接，当夹持模块300的数量为两组以上时，该四个以上的夹爪中至少一个与对应的移动单元枢转连接。此外，本段落中的“枢转连接”意为相互连接的两部件之间通过一轴类零件实现的转动连接。
请参照图3与图4，其分别示出了该车轮夹持装置的局部分解示意图，以及A处的局部放大示意图，请同时结合图1与图2；在本实施例中，上述各个夹爪310分别通过第一连接轴组件320与对应的移动单元110转动连接。具体地，对每一夹爪310而言，第一连接轴组件320的一端固定于其连接部311靠近对应的移动单元110的一端，另一端向背离对应的夹持部312的一端延伸；上述对应的移动单元110于靠近该连接部311的一端设有与第一连接轴组件320相适配的的第一连接孔113；上述第一连接轴组件320插入第一连接孔113，以使夹爪310与对应的移动单元110转动连接。可以理解的是，在本发明的其他实施例中，第一连接孔113也可以设于夹爪310的连接部，相应地，第一连接轴组件320设于对应的移动单元110；此外，移动单元110与夹爪310之间还可以通过铰接、轴承连接等其他方式枢转连接，在此不一一限定。
进一步地，为方便夹爪310的拆装，同时确保沿第一连接轴组件320的轴向，处于非工作状态下(不处于夹持轮胎的状态)的夹爪310固定，上述第一连接轴组件320包括第一连接轴(未示出)与第一弹性胶圈(未示出)。其中，第一连接轴的一端固定于连接部311靠近移动单元110的一端，另一端朝背离对应的夹持部312的方向延伸，第一连接轴插入第一连接孔113，第一弹性胶圈套设于第一连接轴并与第一连接孔113过盈配合。由于第一弹性胶圈具有弹性的特点，一方面，其能够通过与第一连接孔113之间过盈配合将夹爪310安装于移动单元，另一方面，其还能够通过弹性形变从第一连接孔113中离开。
在一些实施例中，为使夹爪310仅能够在小角度范围内发生转动，从而避免夹爪310过度自由而不方便调节其位置，该车轮夹持装置还包括第二连接轴组件330。具体地，第二连接轴组件330的轴线与夹爪410的转动轴线平行设 置，其具体包括第二连接轴(未示出)，即是：第二连接轴与第一连接轴组件320平行设置。第二连接轴亦固定于连接部311靠近翼部112的一端，并向于背离夹持部312的方向延伸；对应的移动单元110于靠近连接部311的一端设有第二连接孔114，该第二连接孔114的直径略大于第二连接轴的直径，上述第二连接轴插入第二连接孔114，由于第二连接孔的内壁与第二连接轴之间存在一定余量，该余量能够使夹爪仅能够轻微转动，从而使两夹爪310同时夹持于轮胎610周向面的表面或同时夹持于轮胎610周向面的凹槽。可以理解的是，在本发明的其他实施例中，第二连接孔还可以是设置在连接部311，相应地，第二连接轴设于对应的移动单元。
进一步地，为避免夹爪310处于非工作状态时第二连接轴频繁地转动，从而造成第二连接轴和/或第二连接孔的损伤，第二连接轴组件还包括第二弹性胶圈(未示出)。该第二弹性胶圈套设于第二连接轴，并且与第二连接孔过盈配合。第二弹性胶圈的设置，一方面将第二连接轴束缚为一稳定状态，以避免第二连接轴自由转动；另一方面，当第二连接轴在外力的作用下具有转动趋势时，第二弹性胶圈可在外力的作用下受挤压形变，进而使第二连接轴发生位移，从而使夹爪310在微小的角度范围内相对第一连接轴组件320转动。此外，第二弹性胶圈与第二连接孔的过盈配合也能方便夹爪310的拆装，便于用户更换不同规格的夹爪。
在一些实施例中，为保证夹爪310对轮胎610更好的夹持效果，夹持部312朝向另一夹爪310的一端设有至少两个锯齿313，该至少两个锯齿313沿夹持部312延伸的方向平行排列。在两夹爪310共同夹持轮胎610的过程中，由于轮胎为弹性材料，锯齿313的尖部能够挤压轮胎610表面，以使轮胎610与夹持部312的接触面呈锯齿状，进而能够有效避免夹爪310与轮胎610之间发生打滑。
在一些实施例中，在两夹爪310在夹持轮胎610的过程中，为保证两夹爪310与轮胎610之间的夹紧力尽可能大，夹持部312可能会在轮胎610的反作用力下发生变形：沿夹持部312延伸的方向，夹持部312靠近连接部311的一端可能会相对其远离连接部311的一端，向靠近移动单元110的方向移动，则连接部311与夹持部312之间的夹角会张大。当该夹角张开至大于90度之后，两夹爪310的夹持效果相对较差。为克服上述不足，本发明将自由状态下的预设夹角设计为小于90度。即，当夹持部312变形至与连接部311垂直时，夹持部312与轮胎610之间已经具有足够大的夹持力，该夹持力大于该车轮夹持装置所需的夹持力；从而使两在夹持车轮600的过程中，连接部与夹持部之间的夹角始终不超过90度。
对于上述隔离件500，请参照图2，同时结合其他附图，其安装于移动单元110，用于在两夹爪310共同夹持外部的轮胎610的过程中，阻止连接部311与外部的轮毂620接触。本实施例中，隔离件500为弹性胶垫，各夹爪310的连接部311于朝向对应的夹持部的侧面设有隔离件500，隔离件500自夹爪 310的连接部311远离对应的夹持部312的一端向靠近上述对应的夹持部312的一端延伸，即是：弹性胶垫通过夹爪310间接安装于移动单元110。当车轮600的轮毂620的端面突出轮胎610的端面之外时，隔离件500用于在夹持模块的两夹爪共同配合夹持轮胎610时，与轮毂620的端面抵接，从而避免连接部311与轮毂620端面的接触。可选地，上述弹性胶垫(隔离件)为橡胶胶垫或者硅胶胶垫，可以理解的是，在本发明的其他实施例中，上述弹性胶垫(隔离件)还可以是其他具有弹性的胶垫，在此不一一详举；隔离件还可以直接安装于移动单元的移动主体或翼部，只要其能够阻止第一连接部与轮毂接触即可；此外，同一车轮夹持装置内，还可以是仅有一个夹爪的连接部设有上述隔离件。
应当理解，隔离件500并不局限于设于上述位置的弹性胶垫，只隔离件500能够保证在两夹爪310夹持轮胎610的过程中，阻止连接部311与轮毂620接触即可。例如：图5及图6分别示出了带有另一种隔离件500＇的车轮夹持装置的立体示意图，以及B处的局部放大示意图，请同时结合图1至图4；其中，各夹爪310的连接部311于朝向对应的夹持部312的侧面设有隔离件500＇，隔离件500＇自连接部311靠近对应的夹持部312的一端向远离上述对应的夹持部312的一端延伸。隔离件500＇用于在两夹爪共同配合夹持轮胎610时，与轮胎610的端面抵接，以使连接部311与轮毂620之间具有间隙，从而避免连接部311与轮毂620的接触。可选地，隔离件500＇与连接部311一体成型，其材料为金属材料；当然，本发明对隔离件500＇的材料并不作具体限定，其材料还可以是橡胶、硅胶等其他材料。值得一提的是，隔离件500＇本身仅与轮胎610的端面接触，而不与轮毂620接触。第一实施方式提供的隔离件500与轮毂620抵接时，该隔离件500与轮毂620之间仍存在摩擦，隔离件500＇采用的弹性胶垫虽不会损伤轮毂620，但上述摩擦仍可能对两夹爪的运动过程造成一定影响；与之相比，本实施方式提供的隔离件500＇不仅能够使两夹整体避开轮毂620，其本身亦不与轮毂620接触，故隔离件500＇的隔离效果更佳。
对于上述装夹部400，请参照图2，其通过上述两导杆210固定安装于驱动模块200且位于两移动单元110之间。沿移动单元110延伸的方向，该装夹部位于同一夹持模块300的两夹爪的夹持部312之间的中心位置，该装夹部用以安装激光器、标靶等检测元件。则，在两移动单元110同时向中心靠拢至同一夹持模块300的两夹爪310夹持于轮胎610表面时，装夹部恰好与轮毂中心对齐。
本发明实施例提供的车轮夹持装置包括移动模块100、驱动模块200、夹持模块300以及装夹部400。其中，移动模块100包括相对设置的两移动单元110。驱动模块与两移动单元110连接，其用于驱动两移动单元110相互靠近或者远离，并且两移动单元110的移动距离相同。夹持模块300包括相对设置的两夹爪310，一夹爪310对应安装于一移动单元110，该夹爪310包括夹持 部312。装夹部400与驱动模块200连接，沿移动单元110的运动方向，该装夹部位于两夹爪310的夹持部312之间的中心位置。两夹爪310用于共同配合夹持外部的车轮600的轮胎610，以使装夹部与车轮600的轮毂620的中心对齐。通过上述设置，夹爪310仅需夹持在轮胎610的周向面，则该车轮夹持装置产生的夹紧力不再损伤轮毂620。此外，该车轮夹持装置亦能够保证两夹爪310夹持到位后，装夹部与轮毂中心对齐。
应当理解，即使上述实施例中夹爪与对应的移动单元之间是通过第一连接轴组件及第二连接轴组件连接，但本发明并不局限于此，在本发明的其他实施例中，夹爪310还可以通过其他方式可拆卸地安装于对应的移动单元110，从而方便替换不同规格的夹爪310。
最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；在本发明的思路下，以上实施例或者不同实施例中的技术特征之间也可以进行组合，步骤可以以任意顺序实现，并存在如上所述的本发明的不同方面的许多其它变化，为了简明，它们没有在细节中提供；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (15)

  1. 一种车轮夹持装置，其特征在于，包括：
    移动模块，包括两移动单元；
    驱动模块，与所述两移动单元连接，用于驱动两所述移动单元相互靠近或者远离，且两所述移动单元的移动距离相同；
    夹持模块，包括相对设置的两夹爪，一所述夹爪对应安装于一所述移动单元，所述夹爪包括夹持部；以及
    装夹部，与所述驱动模块连接，所述装夹部位于所述两夹爪的夹持部之间的中心位置；
    其中，所述两夹爪用于共同配合夹持外部的车轮的轮胎，以使所述装夹部与所述车轮的轮毂中心对齐。
  2. 根据权利要求1所述的车轮夹持装置，其特征在于，所述夹爪还包括连接部，所述连接部安装于所述移动单元，所述连接部用于连接所述夹持部与所述移动单元。
  3. 根据权利要求2所述的车轮夹持装置，其特征在于，还包括隔离件，所述隔离件安装于所述移动单元，所述隔离件用于在所述两夹爪共同夹持所述轮胎时，阻止所述连接部与所述轮毂接触。
  4. 根据权利要求3所述的车轮夹持装置，其特征在于，至少一夹爪的连接部于朝向对应的夹持部的侧面设有所述隔离件，所述隔离件为弹性胶垫；
    所述隔离件用于在所述两夹爪共同配合夹持所述轮胎时，与所述轮毂的端面抵接，以避免所述连接部与所述轮毂接触。
  5. 根据权利要求3所述的车轮夹持装置，其特征在于，至少一夹爪的连接部于朝向对应的夹持部的侧面设有所述隔离件；
    所述隔离件用于在所述两夹爪共同配合夹持所述轮胎时，与所述轮胎的端面抵接，以使所述连接部与所述轮毂之间具有间隙。
  6. 根据权利要求5所述的车轮夹持装置，其特征在于，所述隔离件与所述至少一夹爪的连接部一体成型。
  7. 根据权利要求1所述的车轮夹持装置，其特征在于，所述夹持部朝向另一夹爪的一端设有至少两个锯齿，所述至少两个锯齿沿所述夹持部延伸的方向平行排列。
  8. 根据权利要求2所述的车轮夹持装置，其特征在于，至少一个夹爪与对应的移动单元枢转连接，以使所述至少一个夹爪的夹持部可沿所述轮胎的周向面滑动。
  9. 根据权利要求8所述的车轮夹持装置，其特征在于，所述至少一个夹爪通过第一连接轴组件与所述对应的移动单元转动连接；
    所述至少一个夹爪的连接部与所述对应的移动单元中的一个与所述第一连接轴组件固定，所述至少一个夹爪的连接部与所述对应的移动单元中的另一 个设有与所述第一连接轴组件相适配的第一连接孔，所述第一连接轴组件插入所述第一连接孔。
  10. 根据权利要求9所述的车轮夹持装置，其特征在于，所述第一连接轴组件包括第一连接轴与第一弹性胶圈，所述第一弹性胶圈套设于所述第一连接轴并与所述第一连接孔过盈配合。
  11. 根据权利要求8所述的车轮夹持装置，其特征在于，还包括第二连接轴组件，所述第二连接轴组件包括第二连接轴，所述第二连接轴的轴线与所述至少一个夹爪的转动轴线平行；
    所述至少一个夹爪的连接部与所述对应的移动单元中的一个设有所述第二连接轴，所述至少一个夹爪的连接部与所述对应的移动单元中的另一个设有第二连接孔，所述第二连接孔的直径大于所述第二连接轴的直径，所述第二连接轴插入所述第二连接孔。
  12. 根据权利要求11所述的车轮夹持装置，其特征在于，所述第二连接轴组件还包括第二弹性胶圈，所述第二弹性胶圈套设于所述第二连接轴且与所述第二连接孔过盈配合。
  13. 根据权利要求1所述的车轮夹持装置，其特征在于，同一所述夹爪的连接部与夹持部之间的夹角小于90度。
  14. 根据权利要求1至13中任一项所述的车轮夹持装置，其特征在于，所述驱动模块包括：
    导杆，两所述移动单元均与所述导杆滑动配合；以及
    丝杆，包括第一螺纹部与第二螺纹部，所述第一螺纹部与所述第二螺纹部的旋向相反且螺距相等，一所述移动单元与所述第一螺纹部螺纹配合，另一所述移动单元与所述第二螺纹部螺纹配合。
  15. 根据权利要求1至13中任一项所述的车轮夹持装置，其特征在于，所述夹爪可拆卸地安装于所述移动单元。
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