Wheel hub clamping device

Abstract

The present invention discloses a wheel hub clamping device, comprising two claw assemblies for clamping on the wheel hub; a driving module connected to the two claw assemblies, comprising a guide assembly and a driving member connected to the guide assembly, the guide assembly is used to guide the two claw assemblies to move, and the driving member is used to synchronously drive the two claw assemblies to move closer to or away from each other by the same distance; a clamping module installed on the driving module, located at the center of the two claw assemblies, the clamping module is used to clamp an auxiliary calibration tool; an adjusting module connected to the driving module, used to adjust the positions of the two claw assemblies so that the two claw assemblies clamp the wheel hub together, so that the centerline axis of the clamping module coincides with the center axis of the wheel hub. Through the above structure, when in use, it is only necessary to clamp the two claw assemblies on the wheel hub first, and drive the driving member to rotate through the adjusting module, so that the two claw assemblies clamp the wheel hub together, which is more convenient to use.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of automobile technology, and in particular to a wheel hub clamping device. Background Art

[0002] Cars are an important means of transportation that is indispensable in people's lives, and their driving performance is closely related to people's life safety. In order to ensure the driving performance of the car, the parts on the car need to be calibrated regularly or as needed after leaving the factory. During the calibration process, it is necessary to attach the auxiliary calibration tool to the wheel of the car through the wheel hub clamping device to assist in the positioning of the car's calibration equipment, or to assist the car's calibration equipment in positioning the wheel. The existing wheel hub clamping device, in order to adapt to wheels of different sizes, usually adjusts the position of the claw by turning the screw, and installs it on the wheel hub after adjusting to the appropriate position. However, the connection between this wheel hub clamping device and the wheel hub is relatively loose and not tight, which easily affects the positioning of the calibration equipment and is inconvenient to use. Summary of the invention

[0003] In order to solve the above technical problems, an embodiment of the present invention provides a wheel hub clamping device which is easy to use.

[0004] The embodiment of the present invention solves the technical problem by adopting the following technical solution:

[0005] A wheel hub clamping device, comprising:

[0006] Two claw assemblies, used for clamping to the wheel hub;

[0007] A driving module connected to the two claw assemblies, the driving module comprising a guide assembly and a driving member, the driving member being connected to the guide assembly, the guide assembly being used to guide the two claw assemblies to move, the driving member being used to synchronously drive the two claw assemblies to move closer to or away from each other, and the moving distances of the two claw assemblies are the same;

[0008] A clamping module, installed on the driving module, the clamping module is located at the center of the two claw assemblies, and the clamping module is used to clamp the auxiliary calibration tool;

[0009] An adjusting module connected to the driving module, and when the adjusting module is in a first state, the adjusting module is rotated, and the adjusting module can drive the driving member to rotate, so as to adjust the strength of the two claw assemblies clamping the wheel hub;

[0010] When the adjusting module is in the second state, the adjusting module is rotated, the driving member remains stationary, and the force with which the two claw assemblies clamp the wheel hub remains unchanged.

[0011] Optionally, the adjustment module includes a knob assembly and a support block, the support block is connected to the driving module, and the knob assembly is connected to the support block. By rotating the knob assembly, the knob assembly drives the driving member to rotate to adjust the relative positions of the two claw assemblies.

[0012] Optionally, the knob assembly comprises a knob, a friction cover, an elastic member and a friction plate, the knob is threadedly connected to the support block, the friction plate and the elastic member are both provided with a central through hole, the friction plate and the elastic member are both sleeved on the end of the driving member, wherein the knob is provided with a receiving hole, the friction cover is received in the inner wall of the receiving hole, and the friction plate rotates synchronously with the driving member;

[0013] When the adjustment module is in the first state, the knob is turned, the friction cover gradually approaches and abuts against the friction plate, the knob drives the friction plate and the friction cover to rotate synchronously, the friction plate gradually squeezes the elastic member, and the friction plate drives the driving member to rotate, so as to adjust the strength of the two claw assemblies clamping the wheel hub;

[0014] When the adjustment module is in the second state, the knob is rotated, the friction cover rotates relative to the friction plate, and the driving member remains stationary.

[0015] Optionally, a keyway is provided at the end of the driving member, and the friction plate is provided with a convex key. When the friction plate is sleeved on the driving member, the convex key is embedded in the keyway to enable the friction plate to be clamped on the end of the driving member.

[0016] Optionally, the support block is provided with a convex ring portion at one end facing the knob assembly, the outer wall of the convex ring portion has an external thread section and a non-thread section, the inner wall of the receiving hole is provided with a first internal thread, and the first internal thread is threadedly connected to the external thread section;

[0017] When the first internal thread is in the external thread section area of ​​the flange portion, the adjustment module is in the first state, and when the first internal thread is in the non-thread section area, the adjustment module is in the second state.

[0018] Optionally, the knob assembly further includes a limit member, wherein the limit member is mounted on an end portion of the driving member, and the limit member is used to prevent the friction plate from being separated from the driving member.

[0019] Optionally, the limiting member is a nut, the nut is threadedly connected to the end of the driving member, and the friction plate is located between the nut and the supporting block.

[0020] Optionally, the knob assembly further comprises a pressing member, which is mounted on the knob and abuts against the friction cover;

[0021] When the pressing member moves toward the direction approaching the clamping module, the pressing member pushes the friction cover to gradually approach the friction plate.

[0022] Optionally, the clamping member is a screw, and a second internal thread is provided at one end of the receiving hole away from the support plate, and a threaded portion of the screw is threadedly connected to the second internal thread so that the screw is screwed into the receiving hole.

[0023] Optionally, the knob is provided with a ring portion, the ring portion is located on the inner wall of the receiving hole, and the ring portion is coaxially arranged with the receiving hole, and the ring portion is used for positioning and installing the friction cover.

[0024] Optionally, the friction cover comprises a barrel portion and a shoulder portion, the barrel portion is connected to the shoulder portion, the barrel portion partially protrudes outward to form a convex strip, the ring portion is provided with a notch, and when the friction cover is mounted on the knob, the ring portion sleeves the barrel portion, and the convex strip is clamped in the notch;

[0025] When the shoulder portion abuts against the end surface of the ring portion, the pressing member moves to the limit position.

[0026] Optionally, the adjustment module further includes a thrust bearing, and the thrust bearing is installed between the elastic member and the support block.

[0027] Optionally, the adjustment module further comprises a rolling bearing, an inner ring of the rolling bearing is sleeved on the driving member, and an outer ring of the rolling bearing is clamped on the guide assembly.

[0028] Optionally, the driving member is a driving rod, the driving rod comprises a left-handed threaded portion and a right-handed threaded portion, the left-handed threaded portion and the right-handed threaded portion are arranged opposite to each other, one of the claw assemblies is screwed to the left-handed threaded portion, and the other of the claw assemblies is screwed to the right-handed threaded portion;

[0029] When the driving rod rotates, the two claw assemblies synchronously move closer to or farther from the clamping module along the guide assembly.

[0030] Optionally, the guide assembly includes a first guide column, a second guide column and a connecting block, the connecting block connects the first guide column and the second guide column, one claw assembly is installed at one end of the first guide column and the second guide column, and the other claw assembly is installed at the other end of the first guide column and the second guide column, wherein one end of the driving member passes through the connecting block and is connected to the adjustment module.

[0031] Optionally, the claw assembly includes a base, a claw and at least one extended arm, each of the extended arms is connected to the base, the claw is mounted on the extended arm, and the claw is used to be clamped to the wheel hub.

[0032] Optionally, the clamping module includes a mounting seat and a locking knob, the mounting seat is fixedly mounted on the guide assembly, the locking knob is movably mounted on the mounting seat, the mounting seat is provided with a socket, and the socket is used to insert the auxiliary calibration tool;

[0033] When the auxiliary calibration tool is inserted into the mounting seat, the locking knob is turned to fix the auxiliary calibration tool to the mounting seat.

[0034] Optionally, the locking knob comprises a screw and a button head, one end of the screw is fixedly connected to the button head, the mounting seat is provided with a threaded hole, the threaded hole is communicated with the insertion hole, and the screw is threadedly connected to the threaded hole;

[0035] When the button head is gradually turned along a preset direction, the screw rod gradually approaches the insertion hole, so that the other end of the screw rod abuts against the auxiliary calibration tool.

[0036] Optionally, the wheel hub clamping device further comprises a handle, wherein the handle is connected to the claw assembly, and the claw assembly is moved by pulling the handle.

[0037] The beneficial effects of the embodiments of the present invention are as follows: the wheel hub clamping device provided by the embodiments of the present invention comprises two claw assemblies for clamping on the wheel hub; a driving module connected to the two claw assemblies, the driving module comprising a guide assembly and a driving member, the driving member being connected to the guide assembly, the guide assembly being used to guide the two claw assemblies to move, the driving member being used to synchronously drive the two claw assemblies to move closer to or away from each other, and the moving distances of the two claw assemblies are the same; a clamping module being installed on the driving module, the clamping module being located at the center position of the two claw assemblies, the clamping module being used to clamp an auxiliary calibration tool; an adjusting module being connected to the driving module, when the adjusting module is in a first state and the adjusting module is rotated, the adjusting module can drive the driving member to rotate so as to adjust the strength with which the two claw assemblies clamp the wheel hub; when the adjusting module is in a second state and the adjusting module is rotated, the driving member remains stationary, and the strength with which the two claw assemblies clamp the wheel hub remains unchanged. Through the above structure, when in use, it is only necessary to first clamp the two claw assemblies to the wheel hub, and through the adjustment action of the adjustment module, the two claw assemblies can clamp the wheel hub together, so that the central axis of the clamping module located at the center of the two claw assemblies coincides with the central axis of the wheel hub, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0039] Figure 1 is a schematic structural diagram of a wheel hub clamping device according to one embodiment of the present invention;

[0040] Figure 2 yes Figure 1 A schematic diagram of the structure of the drive module in FIG.

[0041] Figure 3 yes Figure 1 A schematic diagram of the structure of the claw assembly;

[0042] Figure 4 yes Figure 1 The structural decomposition diagram of the regulation module in;

[0043] Figure 5 yes Figure 1 A cross-sectional view of the regulating module in FIG.

[0044] Figure 6 yes Figure 4 A schematic diagram of the structure of the support block in FIG.

[0045] Figure 7 yes Figure 4 Schematic diagram of the structure of the middle knob;

[0046] Figure 8 yes Figure 4 Schematic diagram of the structure of the middle friction cover;

[0047] Fig. 9 yes Figure 4 Schematic diagram of the structure of the middle friction plate;

[0048] Fig.10 yes Figure 1 Exploded view of the clamping module. DETAILED DESCRIPTION

[0049] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "vertical", "horizontal", etc. used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0050] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0051] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0052] like Figure 1-2As shown, a wheel hub clamping device 900 provided by one embodiment of the present invention comprises a driving module 100, two claw assemblies 200, an adjusting module 300 and a clamping module 400. The two claw assemblies 200 and the clamping module 400 are both installed on the driving module 100, and the clamping module 400 is located at the center of the two claw assemblies 200, and the adjusting module 300 is connected to the driving module 100. The driving module 100 is used to drive the two claw assemblies 200 to move, the two claw assemblies 200 are used to be clamped on the wheel hub, the clamping module 400 is used to clamp the auxiliary calibration tool, and the adjusting module 300 is used to adjust the positions of the two claw assemblies so that the two claw assemblies clamp the wheel hub together, so that the centerline axis of the clamping module coincides with the center axis of the wheel hub. The driving module 100 includes a driving member 110 and a guide assembly 120, wherein the driving member 110 is connected to the guide assembly 120, and the guide assembly 120 is used to guide the two claw assemblies 200 to move, and the driving member 110 is used to synchronously drive the two claw assemblies 200 to move closer to or away from each other, and the moving distances of the two claw assemblies are the same. When the adjusting module 300 is in the first state and the adjusting module 300 is rotated, the adjusting module 300 can drive the driving member 110 to rotate to adjust the force of the two claw assemblies 200 clamping the wheel hub; when the adjusting module 300 is in the second state and the adjusting module 300 is rotated, the driving member 110 remains stationary, and the force of the two claw assemblies 200 clamping the wheel hub remains unchanged.

[0053] Through the above structure, when in use, it is only necessary to clamp the two claw assemblies 200 to the wheel hub, and drive the driving member 110 to rotate through the adjustment module 300 to adjust the positions of the two claw assemblies 200, so that the two claw assemblies 200 can clamp the wheel hub together, which is more convenient to use.

[0054] It should be understood that the auxiliary calibration tool is mainly used to assist the four-wheel alignment system in obtaining the position of the wheel so as to calibrate the position of the vehicle wheel. It can be a target with a calibration image, a laser used to locate the vehicle calibration equipment or used in conjunction with the vehicle calibration equipment, a reflective device, etc., which is not limited here.

[0055] like Figure 2As shown, the driving module 100 includes the driving member 110 and the guide assembly 120, wherein the driving member 110 is connected to the guide assembly 120, wherein a claw assembly 200 is installed at both ends of the driving member 110, and the adjustment module 300 is installed at one end of the driving member 110. When the driving member 110 rotates, the driving member 110 drives the two claw assemblies 200 to move closer to or away from each other, so that the two claw assemblies clamp or release the wheel hub together. In this embodiment, the driving member 110 is a driving rod, which includes a left-handed threaded portion 111 and a right-handed threaded portion 112. The left-handed threaded portion 111 and the right-handed threaded portion 112 are arranged opposite to each other. One of the jaw assemblies 200 is screwed to the left-handed threaded portion 111, and the other jaw assembly 200 is screwed to the right-handed threaded portion 112. The pitch of the left-handed threaded portion 111 is the same as the pitch of the right-handed threaded portion 112. Therefore, when the driving rod rotates, the two jaw assemblies 200 can move the same distance to ensure that the clamping module 400 is always in the center position of the two jaw assemblies 200.

[0056] The guide assembly 120 includes a first guide column 121, a second guide column 122 and a connecting block 123, wherein the connecting block 123 connects the first guide column 121 and the second guide column 122, one of the claw assemblies 200 is installed at one end of the first guide column 121 and the second guide column 122, and the other of the claw assemblies 200 is installed at the other end of the first guide column 121 and the second guide column 122, wherein one end of the driving member 110 passes through the connecting block 123 and is connected to the adjustment module 300. It can be understood that the first guide column 121 and the second guide column 122 are arranged in parallel, and the first guide column 121 and the second guide column 122 are of the same length, so as to facilitate the connection of the connecting block 123. In this embodiment, the number of the connecting blocks 123 is two, one of the connecting blocks 123 connects one end of the first guide column 121 and the second guide column 122, and the other of the connecting blocks 123 connects the other end of the first guide column 121 and the second guide column 122. It should be understood that the connection block 123 is connected to the first guide column 121 or the second guide column 122 by connecting members such as screws or bolts, or by welding. In this embodiment, the first guide column 121 and the second guide column 122 are connected to the connection block 123 by connecting members such as screws or bolts. Therefore, both ends of the connection block 123 are provided with connection holes (not marked), and the middle part of the connection block 123 is provided with a through hole (not marked), and the through hole is used for the drive member 110 to pass through, so as to facilitate the connection between the drive member 110 and the adjustment module 300.

[0057] like Figure 3 As shown, the claw assembly 200 includes a base 210, at least one extension arm 220 and a claw 230, each of which is connected to the base 210, and the claw 230 is installed on the extension arm 220, and the claw 230 is used to clamp the wheel hub. In this embodiment, the two ends of the base 210 are respectively connected to an extension arm 220, and the claw 230 is installed on each extension arm 220. The base 210 is provided with a first through hole 211, a second through hole 212 and a threaded hole 213, the first through hole 211 and the second through hole 212 are located at the two ends of the base 210, and the threaded hole 213 is located between the first through hole 211 and the second through hole 212. Each of the extension arms 220 is provided with three mounting holes (not shown), the centers of the three mounting holes are in the same straight line, and the claw 230 can be installed in any of the mounting holes. Of course, in addition to having three mounting holes, each of the extension arms 220 may also have one, two or more than three mounting holes, and is not limited to the three in the present embodiment, and is not limited here. Preferably, the number of the extension arms 220 is two, and the two extension arms 220 are respectively connected to the two ends of the base 210, and a claw 230 is respectively installed on the two extension arms 220. Furthermore, each of the claws 230 of the two claw assemblies 200 forms a full circle with each other, so that a plurality of the claws 230 clamp the wheel hub together. It should be noted here that the claw 230 is clamped to the wheel hub, which means that the claw 230 is partially inserted into the mounting gap between the wheel hub and the tire, so that the claw 230 is clamped to the wheel hub.

[0058] Please combine Figure 1 , Figure 4-5 As shown, the adjustment module 300 includes a support block 310 and a knob assembly 320, wherein the knob assembly 320 is connected to the support block 310, and the support block 310 is connected to the driving module 100. When the knob assembly 320 is rotated, the knob assembly 310 drives the driving member 310 to rotate, thereby adjusting the relative positions of the two claw assemblies 200. In this embodiment, the support block 320 is connected to the connecting block 230, and the end of the driving member 110 passes through the connecting block 123 and is connected to the knob assembly 310.

[0059] See also Figure 6The support block 310 includes a base portion 311 and a flange portion 312. The base portion 311 is connected to the connection block 123. The flange portion 312 is connected to the base portion 311, and the flange portion 312 is located on a side of the base portion 311 away from the connection block 123. The base portion 311 is provided with a connecting hole (not shown), and the connecting hole (not shown) is connected to the through hole of the connection block 123, so that the end of the driving member 110 can pass through the through hole and the connecting hole (not shown) and reach the flange portion 312. The outer wall of the flange portion 312 has a non-threaded section 3121 and an externally threaded section 3122. The non-threaded end 3121 is arranged close to the base portion 311, and the externally threaded section 3122 is arranged away from the base portion 311. In this embodiment, the base portion 311 is in a round shape, and the outer dimensions of the base portion 311 are larger than the outer dimensions of the flange portion 312, and the base portion 311 is provided with a plurality of through holes (not shown), and the base portion 311 is connected to the connection block 123 after the connection member passes through the through holes. In other embodiments, the base portion 311 may be omitted, in which case the flange portion 312 is directly connected to the connection block 123, and the end of the driving member 110 directly passes through the connection block 123 and reaches the flange portion 312.

[0060] Please refer again Figure 4 and Figure 5 The knob assembly 320 includes a knob 321, a friction cover 322, an elastic member 323 and a friction plate 324. The knob 321 is connected to the support block 310. The friction cover 320 is mounted on the knob 321. The friction plate 324 and the elastic member 323 are both provided with a central through hole (not shown). The elastic member 323 and the friction plate 324 are both mounted on the driving member 110. The knob 321 is provided with a receiving hole 3211. The friction cover 322 is received in the inner wall of the receiving hole 3211. The friction plate 324 rotates synchronously with the driving member 110.

[0061] When the adjustment module 300 is in the first state, the knob 321 is turned, the friction cover 322 gradually approaches and abuts against the friction plate 324, the knob 321 drives the friction plate 324 and the friction cover 322 to rotate synchronously, the friction plate 324 gradually squeezes the elastic member 323, and the friction plate 324 drives the driving member 110 to rotate, so as to adjust the position of the two claw assemblies 200 relative to the clamping module 400, thereby adjusting the force of the two claw assemblies 200 clamping the wheel hub. When the adjustment module 300 is in the second state, the knob 321 is turned, the friction cover 322 rotates relative to the friction plate 324, that is, the friction cover 322 slips on the surface of the friction plate 324, and the driving member 110 remains in its original state without rotating. It can be understood that the elastic member 323 can be elastic silicone, or a spring, or of course, other structures. Preferably, the elastic member 323 is a disc spring.

[0062] In some embodiments, the end of the driving member 110 is provided with a keyway 113, and the friction plate 324 is provided with a convex key 3241. Fig. 9 As shown, when the friction plate 324 is sleeved on the driving member 110, the convex key 3241 is embedded in the key slot 113, so that the friction plate 324 is clamped on the end of the driving member 110, so that the friction plate 324 and the driving member 110 can rotate synchronously. It should be understood that the end of the driving member 110 can also be provided with the convex key, the friction plate 324 is provided with the key slot, and the convex key is embedded in the key slot.

[0063] Of course, in addition to the keyway and the key cooperation method, the method for achieving the synchronous rotation of the friction plate 324 and the driving member 110 can also be: the friction plate 324 partially extends outward to form a protrusion (not shown in the figure), the protrusion has a through hole, and the end of the driving rod 110 is provided with a threaded hole, and the friction plate 324 is passed through the through hole of the protrusion by a connecting member such as a screw or a bolt and then screwed to the threaded hole to achieve the synchronous rotation of the friction plate 324 and the driving member.

[0064] See also Figure 7In some embodiments, the inner wall of the receiving hole 3211 is provided with a first internal thread 32111, and the first internal thread 32111 is threadedly connected with the external thread section 3122 of the flange portion 312, so that the knob 321 is connected with the flange portion 312, so that the knob 321 is connected with the support block 310. When the first internal thread 32111 is in the region of the external thread section 3122 of the flange portion 312, the adjustment module 300 is in the first state, and when the first internal thread 32111 is in the region of the non-thread section 3121, the adjustment module 300 is in the second state. It can be understood that when the adjustment module 300 is in the second state, the first internal thread 32111 is disengaged from the threaded connection with the external thread section 3122, and at the same time, due to the action of the first internal thread 32111 and the external thread section 3122, the knob 321 is not directly disengaged from the flange portion 312.

[0065] During installation and use, the driving rod 110 is installed on the guide assembly 120, and the end of the driving rod 110 is extended out of the raised ring portion 312, and then the elastic member 323 and the friction plate 324 are sequentially sleeved on the driving rod 110, and the friction cover 322 is installed on the knob 321, and the knob 321 is threadedly connected to the raised ring portion 312, and the friction cover 322 covers the friction plate 324 to prevent the elastic member 323 and the friction plate 324 from detaching from the driving rod 110. A gap is reserved between the friction plate 324 and the friction plate 322. When the knob 321 rotates along the preset direction, the friction cover 322 gradually approaches the friction plate 324 until the friction plate 324 and the friction cover 322 abut against each other. The knob 321 continues to rotate along the preset direction, so that the friction cover 322 drives the friction plate 324 to rotate. At the same time, the elastic member 323 is gradually compressed, and the driving rod 110 rotates with the friction plate 324, thereby adjusting the relative positions of the two claw assemblies 200. It should be understood that in order for the friction cover 322 to drive the friction plate 324 to rotate when the knob 321 is turned, the end of the friction cover 322 away from the friction plate 323 needs to be subjected to force abutment, which can be achieved by relying on the knob 321 to abut against the friction cover 322, or by relying on other components to abut against the friction cover 322. In the present embodiment, the friction cover 322 relies on the knob 321 to apply the abutting force. At this time, the inner wall of the knob 321 extends toward the central axis to form an abutting area. The end of the friction cover 322 away from the friction plate 324 abuts against the abutting area, so that when the knob is turned, the friction cover 324 can compress the elastic member 323, thereby applying a greater force on the friction plate 323, thereby increasing the friction between the friction plate 323 and the friction cover 322.

[0066] See also Figure 4 and Figure 5 In some embodiments, the knob assembly 300 further includes a stopper 325, which is mounted on the end of the driving member 110, and is used to prevent the friction plate 324 from being separated from the driving member 110. In this embodiment, the stopper 325 is a nut, which is screwed to the end of the driving member 110, and the nut is located at an end of the elastic member 323 away from the support block 310, that is, the friction plate 324 is located between the nut and the support block 310.

[0067] In some embodiments, the knob assembly 300 further includes a pressing member 326, which is mounted on the knob 321 and abuts against the friction cover 322. Both the friction cover 322 and the pressing member 326 can move along the axial direction of the knob 321. When the pressing member 326 moves toward the direction close to the clamping module 400, the pressing member 326 pushes the friction cover 322 to gradually approach the friction plate 324. In this embodiment, the pressing member 326 is a screw, which is screwed to the knob 321. When the screw is turned, the screw pushes the friction cover 322 to move synchronously, thereby adjusting the distance between the friction cover 322 and the friction plate 324. Specifically, the end of the receiving hole 3211 away from the support plate 310 is provided with a second internal thread 32112, and the threaded portion of the screw is threadedly connected to the second internal thread 32112, so that the screw is screwed to the receiving hole 3211. It should be understood that after the wheel hub clamping device 900 has been used for a long time, the friction cover 322 and the knob 321 will inevitably become loose, that is, the friction cover 322 pushes against the clamping member 326 and moves away from the friction plate 324. At this time, tightening the clamping member 326 can adjust the friction cover 322 to the factory installation position, or increase or decrease the distance between the friction cover 322 and the friction plate 324 according to user needs, so that when the user turns the knob 321, the two claw assemblies 200 can meet the user's force application habits. Figure 7 and Figure 8Further, the knob 321 is provided with a ring portion 3212, the ring portion 3212 is located on the inner wall of the receiving hole 3211, and the ring portion 3212 is coaxially arranged with the receiving hole 3211, and the ring portion 3212 is used for positioning and installing the friction cover 322. In some embodiments, the friction cover 322 includes a barrel portion 3221 and a shoulder portion 3222, the barrel portion 3221 is connected to the shoulder portion 3222, the barrel portion 3221 partially protrudes outward and forms a convex strip 32211, and the ring portion 3212 is provided with a notch 32121. When the friction cover 322 is installed on the knob 321, the ring portion 3212 is sleeved on the barrel portion 3221, and the convex strip 32211 is snapped into the notch 32121. When the shoulder portion 3222 abuts against the end surface of the ring portion 3212 , the pressing member 326 moves to the limit position and stops moving. The limit position refers to the maximum distance that the pressing member 326 moves along the axial direction of the knob 321 . It should be understood that when the shoulder portion 3222 and the ring portion 3212 are not in contact, a space is left between the shoulder portion 3222 and the ring portion 3212. By twisting the clamping piece 326, the clamping piece 326 pushes the friction cover 322 to move and gradually reduces the distance between the shoulder portion 3222 and the ring portion 3212. At the same time, the end of the friction cover 322 away from the clamping piece 326 abuts against the friction plate 322. By gradually twisting the clamping piece 326, the friction cover 322 increasingly compresses the elastic piece 323, and the elastic piece 323 provides a greater reaction force, thereby increasing the friction between the friction plate 324 and the friction cover 322, so that the drive rod 110 drives the two claw assemblies 200 to better clamp the wheel hub.

[0068] See also Figure 5 In some embodiments, the adjustment module 300 further includes a thrust bearing 330, and the thrust bearing 330 is installed between the elastic member 323 and the support block 320. Specifically, the outer ring of the thrust bearing 330 is clamped on the inner wall of the convex ring portion 312, one end of the elastic member 323 abuts against the thrust bearing 330, and the other end of the elastic member 323 abuts against the friction plate 323. Therefore, the elastic member 323 can reduce the resistance during rotation through the thrust bearing 330, so that the friction plate 323 can better drive the driving rod 110 to rotate.

[0069] Furthermore, the adjustment module 300 further includes a rolling bearing 340, the inner ring of the rolling bearing 340 is sleeved on the driving member 110, and the outer ring of the rolling bearing 340 is clamped on the guide assembly 120. Specifically, the outer ring of the rolling bearing 340 is clamped on the inner wall of the through hole on the connecting block 123, and the inner ring of the rolling bearing 340 is connected to the end of the driving member 110. Therefore, when the driving rod 110 rotates, the rolling bearing 340 can avoid rigid friction between the driving rod 110 and the connecting block 123.

[0070] See also Fig.10 The clamping module 400 includes a mounting seat 410 and a locking knob 420. The mounting seat 410 is fixedly mounted on the driving module 100, and the locking knob 420 is movably mounted on the mounting seat 410. The mounting seat 410 is provided with a plug hole 4121, and the plug hole 4121 is used to insert the auxiliary calibration tool. When the mounting seat 410 is inserted with the auxiliary calibration tool, the locking knob 420 is turned to fix the auxiliary calibration tool to the mounting seat 410.

[0071] The mounting seat 410 includes a base portion 411 and a mounting portion 412, wherein the base portion 411 is connected to the mounting portion 412, and the mounting portion 412 is used to mount the auxiliary calibration tool. The base portion 411 is provided with a first mounting hole 4111 and a second mounting hole 4112, wherein the first mounting hole 4111 is sleeved on the first guide column 211, and the second mounting hole 4112 is sleeved on the second guide column 212, so that the mounting seat 410 is fixedly mounted on the guide assembly 210. The mounting portion 412 is provided with a socket 4121 and a screw hole 4122, wherein the screw hole 4121 is connected to the socket 4121.

[0072] The locking knob 420 includes a screw rod 421 and a button head 422 . The button head 422 is connected to the screw rod 421 . The screw rod 421 is screwed into the screw hole 4122 .

[0073] When in use, the button head 422 is rotated to move the screw rod 421 along the screw hole 4122. After moving a certain distance, the end of the screw rod 421 can abut against the auxiliary calibration tool, so that the auxiliary calibration tool is fastened to the mounting portion 412. Since the central axis of the socket 4121 coincides with the central axis of the wheel hub, when the auxiliary calibration tool is installed in the socket 4121, the central axis of the auxiliary calibration tool coincides with the central axis of the socket 4121, and thus, the central axis of the auxiliary calibration tool coincides with the central axis of the wheel hub.

[0074] Please refer again Figure 1 In some embodiments, the wheel hub clamping device 900 further includes a handle 500, which is mounted on the claw assembly 200. When the handle 500 is pulled, the driving module 100 drives the two claw assemblies 200 to synchronously approach or move away from the clamping module 400. Specifically, the handle 500 includes a handle portion 510, a first connecting portion 520, and a second connecting portion 530. The two ends of the handle portion 510 are respectively connected to one end of the first connecting portion 520 and the second connecting portion 530, the other end of the first connecting portion 520 is connected to one end of the base 210, and the other end of the second connecting portion 530 is connected to the other end of the base 210. It can be understood that when the friction cover 322 is not in contact with the friction plate 324, the handle 500 is pulled, and since the handle 500 is threadedly connected to the driving member 110, the driving member 110 is idled as the handle 500 is pulled. Therefore, when installing the wheel hub clamping device 900 to the wheel hub, it is only necessary to pull the handle 500 connected to the two claw assemblies 200 to quickly open or close the two claw assemblies 200, thereby quickly expanding the two claw assemblies 200 to a range that matches the outer dimensions of the wheel hub, thereby achieving quick installation.

[0075] During installation and use, the two claw assemblies 200 are first installed in the gap between the wheel hub and the tire, and the adjusting module 300 is used to drive the driving member 110 to rotate, so as to adjust the positions of the two claw assemblies 200, so that the two claw assemblies 200 can clamp the wheel hub together. Specifically, after the two claw assemblies 200 are initially installed in the gap, the knob 321 is rotated due to the interaction between the first internal thread 32111 and the external thread section 3122, and the knob 321 gradually approaches the support plate 310, so as to drive the friction cover 322 to approach the friction plate 324, until the friction cover 322 abuts against the friction plate 324. When the knob 321 is continuously rotated in the same direction, the friction cover 322 and the friction plate 324 rub against each other, so that the friction plate 324 drives the driving member 110 to rotate. Since the two jaw assemblies 200 are respectively acted upon by the left-handed threaded portion 111 and the right-handed threaded portion 112 of the driving member 110, the two jaw assemblies 200 are moved closer to each other, thereby clamping the wheel hub. Thus, by rotating the knob 321, the two jaw assemblies 200 can be adjusted once to clamp the wheel hub.

[0076] When the first internal thread 32111 of the knob 321 is disengaged from the external thread section 3122, that is, when the first internal thread 3211 of the knob 321 is in the area of ​​the non-thread section 3121, the knob 321 is rotated, and the knob 321 no longer moves toward the direction close to the support block 310, and the compression amount of the elastic member 323 remains unchanged. At this time, the friction force between the friction cover 322 and the friction plate 324 is not enough to overcome the torque required for the rotation of the driving member 110, and the driving member 100 will remain stationary. When the positions of the two clamping jaw assemblies 200 need to be further adjusted, the clamping member 326 is screwed, and the clamping member 326 pushes the friction cover 322 to abut against the friction plate 324, and the friction plate 324 further compresses the elastic member 323, so that the elastic member 323 provides a greater reaction force to squeeze the friction plate 324, so as to increase the friction between the friction plate 324 and the friction cover 322. Therefore, when the clamping member 326 pushes the friction cover 322 to travel a certain distance, the elastic member 323 is squeezed by the friction plate 324 and provides a certain reaction force, and the friction between the friction cover 322 and the friction plate 324 is sufficient to overcome the torque when the driving rod 110 rotates, and the two clamping jaw assemblies 200 move closer to each other, so that the two clamping jaw assemblies 200 further clamp the wheel hub. Therefore, by tightening the clamping member 326, the secondary adjustment of the clamping jaw assemblies 200 to clamp the wheel hub can be achieved.

[0077] When the wheel hub clamping device 900 is initially installed on the wheel hub, after one adjustment, the two clamping jaw assemblies 200 are clamped to the wheel hub once. If necessary, the clamping member 326 can be tightened to achieve a second adjustment, so that the two clamping jaw assemblies 200 can clamp the wheel hub for a second time. Since the clamping jaws 230 of the two clamping jaw assemblies 200 clamp the wheel hub together, the clamping module 400 is located at the center of the two clamping jaw assemblies 200, and therefore, the central axis of the clamping module 400 will coincide with the central axis of the wheel hub, so that when the auxiliary calibration tool is inserted into the clamping module 400, the central axis of the auxiliary calibration tool will coincide with the central axis of the wheel hub.

[0078] The wheel hub clamping device 900 provided in an embodiment of the present invention includes two claw assemblies 200 for clamping on the wheel hub; a driving module 100, which is connected to the two claw assemblies 200, and the driving module 100 includes a guide assembly 120 and a driving member 110, and the driving member 110 is connected to the guide assembly 120, and the guide assembly 120 is used to guide the movement of the two claw assemblies 200, and the driving member 110 is used to synchronously drive the two claw assemblies 200 to move closer to or away from each other, and the movement distance of the two claw assemblies 200 is the same; a clamping module 400, which is installed on the driving module 100, and the clamping module 400 is located at the center position of the two claw assemblies 200, and the clamping module 400 is used to clamp the auxiliary calibration tool; an adjustment module 300, which is connected to the driving module 100. When the adjustment module 300 is in the first state and the adjustment module 400 is rotated, the adjustment module 400 can drive the driving member 110 to rotate to adjust the force of the two claw assemblies 200 clamping the wheel hub; when the adjustment module 300 is in the second state and the adjustment module 400 is rotated, the driving member 110 remains stationary, and the force of the two claw assemblies 200 clamping the wheel hub remains unchanged. Through the above structure, when in use, it is only necessary to first clamp the two claw assemblies 200 to the wheel hub, and through the adjustment effect of the adjustment module 400, the two claw assemblies 200 clamp the wheel hub together, so that the central axis of the clamping module 400 located at the center of the two claw assemblies 200 coincides with the central axis of the wheel hub, which is more convenient to use.

[0079] The above description is only an implementation mode of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A wheel hub clamping device, characterized in that: include: Two claw assemblies, each claw assembly comprising a base, a claw and at least one extension arm, each of the extension arms being connected to the base, the claw being mounted on the extension arm, and the claw being used to be clamped to the wheel hub; A driving module connected to the two claw assemblies, the driving module comprising a guide assembly and a driving member, the driving member being connected to the guide assembly, the guide assembly being used to guide the two claw assemblies to move, the driving member being used to synchronously drive the two claw assemblies to move closer to or away from each other, and the moving distances of the two claw assemblies are the same; A clamping module, installed on the driving module, the clamping module is located at the center of the two claw assemblies, and the clamping module is used to clamp the auxiliary calibration tool; An adjusting module, comprising a knob assembly and a supporting block, wherein the supporting block is connected to the driving module, and the supporting block is connected to the knob assembly. When the knob assembly is rotated, the knob assembly drives the driving member to rotate, so as to adjust the relative position of the claw assembly; The support block is provided with a convex ring portion at one end facing the knob assembly, the outer wall of the convex ring portion has an external thread section and a non-thread section, the knob assembly is provided with a receiving hole, the inner wall of the receiving hole is provided with a first internal thread, and the first internal thread is threadedly connected with the external thread section. When the first internal thread is in the external thread section area of ​​the flange portion, the adjustment module is in the first state, and the knob assembly is rotated, and the knob assembly can drive the driving member to rotate to adjust the strength of the two claw assemblies clamping the wheel hub; When the first internal thread is in the non-threaded section, the adjustment module is in the second state, the knob assembly is rotated, the driving member remains stationary, and the force with which the two claw assemblies clamp the wheel hub remains unchanged.

2. The wheel hub clamping device according to claim 1, characterized in that: The knob assembly comprises a knob, a friction cover, an elastic member and a friction plate, wherein the knob is threadedly connected to the support block, the friction plate and the elastic member are both provided with a central through hole, and the friction plate and the elastic member are both sleeved on the end of the driving member, wherein the knob is provided with a receiving hole, the friction cover is received in the inner wall of the receiving hole, and the friction plate rotates synchronously with the driving member; When the adjustment module is in the first state, the knob is turned, the friction cover gradually approaches and abuts against the friction plate, the knob drives the friction plate and the friction cover to rotate synchronously, the friction plate gradually squeezes the elastic member, and the friction plate drives the driving member to rotate, so as to adjust the strength of the two claw assemblies clamping the wheel hub; When the adjustment module is in the second state, the knob is rotated, the friction cover rotates relative to the friction plate, and the driving member remains stationary.

3. The wheel hub clamping device according to claim 2, characterized in that: The end of the driving member is provided with a keyway, and the friction plate is provided with a convex key. When the friction plate is sleeved on the driving member, the convex key is embedded in the keyway, so that the friction plate is clamped on the end of the driving member.

4. The wheel hub clamping device according to claim 2, characterized in that: The knob assembly further includes a limiting member, which is mounted on the end of the driving member and is used to prevent the friction plate from being separated from the driving member.

5. The wheel hub clamping device according to claim 4, characterized in that: The limiting member is a nut, the nut is threadedly connected to the end of the driving member, and the friction plate is located between the nut and the supporting block.

6. The wheel hub clamping device according to any one of claims 2 to 5, characterized in that: The knob assembly further includes a pressing member, which is mounted on the knob and abuts against the friction cover; When the pressing member moves toward the direction approaching the clamping module, the pressing member pushes the friction cover to gradually approach the friction plate.

7. The wheel hub clamping device according to claim 6, characterized in that: The clamping member is a screw, and a second internal thread is provided at one end of the receiving hole away from the supporting plate. The threaded portion of the screw is threadedly connected with the second internal thread so that the screw is screwed into the receiving hole.

8. The wheel hub clamping device according to claim 6, characterized in that: The knob is provided with a ring portion, the ring portion is located on the inner wall of the receiving hole, and the ring portion is coaxially arranged with the receiving hole, and the ring portion is used for positioning and installing the friction cover.

9. The wheel hub clamping device according to claim 8, characterized in that: The friction cover comprises a barrel portion and a shoulder portion, the barrel portion is connected to the shoulder portion, the barrel portion partially protrudes outward to form a convex strip, the ring portion is provided with a notch, when the friction cover is installed on the knob, the ring portion is sleeved on the barrel portion, and the convex strip is clamped in the notch; When the shoulder portion abuts against the end surface of the ring portion, the pressing member moves to the limit position.

10. The wheel hub clamping device according to claim 6, characterized in that: The adjustment module further includes a thrust bearing, which is installed between the elastic member and the support block.

11. The wheel hub clamping device according to claim 10, characterized in that: The adjustment module further comprises a rolling bearing, the inner ring of the rolling bearing is sleeved on the driving member, and the outer ring of the rolling bearing is clamped on the guide assembly.

12. The wheel hub clamping device according to claim 1, characterized in that: The driving member is a driving rod, and the driving rod includes a left-handed threaded portion and a right-handed threaded portion, the left-handed threaded portion and the right-handed threaded portion are arranged opposite to each other, one of the claw assemblies is screwed to the left-handed threaded portion, and the other of the claw assemblies is screwed to the right-handed threaded portion; When the driving rod rotates, the two claw assemblies synchronously move closer to or farther from the clamping module along the guide assembly.

13. The wheel hub clamping device according to claim 1, characterized in that: The guide assembly includes a first guide column, a second guide column and a connecting block, the connecting block connects the first guide column and the second guide column, one claw assembly is installed at one end of the first guide column and the second guide column, and the other claw assembly is installed at the other end of the first guide column and the second guide column, wherein one end of the driving member passes through the connecting block and is connected to the adjustment module.

14. The wheel hub clamping device according to claim 1, characterized in that: The clamping module comprises a mounting seat and a locking knob, wherein the mounting seat is fixedly mounted on the guide assembly, and the locking knob is movably mounted on the mounting seat, and the mounting seat is provided with a socket, and the socket is used for inserting an auxiliary calibration tool; When the auxiliary calibration tool is inserted into the mounting seat, the locking knob is turned to fix the auxiliary calibration tool to the mounting seat.

15. The wheel hub clamping device according to claim 14, characterized in that: The locking knob comprises a screw and a button head, one end of the screw is fixedly connected to the button head, the mounting seat is provided with a threaded hole, the threaded hole is communicated with the insertion hole, and the screw is threadedly connected to the threaded hole; When the button head is gradually turned along a preset direction, the screw rod gradually approaches the insertion hole, so that the other end of the screw rod abuts against the auxiliary calibration tool.

16. The wheel hub clamping device according to claim 1, characterized in that: The utility model also comprises a handle, wherein the handle is connected to the clamping jaw assembly, and the clamping jaw assembly is moved by pulling the handle.

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