Positioning device for wheel assembly

Abstract

The utility model relates to a positioning device for wheel assembly, and belongs to the technical field of wheel assembly. The positioning device for wheel assembly comprises a positioning piece, the positioning piece is installed on an axle, and the first end of the positioning piece abuts against a gear on the axle; the adjusting assembly is arranged at the second end of the positioning piece; and the abutting block is arranged on the adjusting assembly, the adjusting assembly is used for adjusting the abutting block to the preset position, and the wheel abuts against the abutting block so that the wheel can be positioned to the correct position. And the subsequent wheel adjusting step is omitted, and the wheel mounting efficiency and accuracy are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wheel assembly, and particularly to a positioning device for wheel assembly. BACKGROUND

[0002] In the field of modern transportation, as a key component for vehicle driving, the assembly quality of the wheel directly relates to driving safety and overall performance. Whether it is an automobile, a train, or various industrial vehicles, precise assembly of the wheel is an indispensable production link.

[0003] The existing wheel assembly method needs to first heat the wheel, and then the worker aligns the heated wheel with the axle for installation according to experience. After the wheel is installed on the axle, the wheel is adjusted to the correct position according to the wheel assembly template.

[0004] However, during the wheel adjustment process, the temperature of the inner hub hole surface rapidly decreases, and the distance of the wheel moving on the axle is limited, which causes the wheel to be unable to be adjusted to the correct position. INVENTION CONTENTS

[0005] The present application provides a positioning device for wheel assembly, which can realize positioning by abutting the wheel installed on the axle to the device. The positioned wheel does not need to be adjusted, thereby improving the efficiency and accuracy of wheel installation.

[0006] The present application provides a positioning device for wheel assembly, which comprises:

[0007] A positioning member is installed on the axle, and a first end of the positioning member abuts with a gear on the axle;

[0008] An adjusting assembly is arranged on a second end of the positioning member;

[0009] An abutting block is arranged on the adjusting assembly, and the adjusting assembly is used to adjust the abutting block to a preset position. The wheel is abutted to the abutting block to position the wheel to the correct position.

[0010] In the embodiment of the present application, the adjusting assembly comprises a screw rod and a nut arranged on the screw rod;

[0011] A first screw hole is arranged on the second end of the positioning member, one end of the screw rod is connected with the first screw hole, and the other end is connected with the abutting block. After the abutting block is adjusted to the preset position by cooperation of the screw rod and the first screw hole, the nut is moved along the screw rod to the position abutting with the second end of the positioning member, so as to lock the screw rod.

[0012] In the embodiment of the present application, the second end of the positioning member is further provided with a protruding part, which is used to abut against the nut.

[0013] In the embodiment of the present application, the adjusting assembly comprises a sliding rod and a positioning bolt.

[0014] The second end of the positioning member is provided with a limiting hole, one end of the sliding rod is in sliding connection with the limiting hole, and the other end is connected with the abutting block.

[0015] The second end of the positioning member is further provided with a second screw hole, which is in communication with the limiting hole, and after the abutting block is adjusted to the preset position through cooperation of the sliding rod and the limiting hole, the positioning bolt is abutted to the sliding rod through the second screw hole to lock the sliding rod.

[0016] In the embodiment of the present application, a first blocking part is arranged at the hole opening of the limiting hole, and a second blocking part is arranged at one end of the sliding rod located in the limiting hole, the first blocking part is used to abut against the second blocking part to prevent the sliding rod from being separated from the limiting hole.

[0017] In the embodiment of the present application, the positioning member comprises a positioning rod and at least one support frame.

[0018] The support frame is arranged on the positioning rod, the adjusting assembly is arranged on the positioning rod, and one end of the support frame away from the positioning rod is connected with the axle.

[0019] In the embodiment of the present application, the support frame is in the shape of a circular arc.

[0020] In the embodiment of the present application, the support frame is a magnet frame.

[0021] Or a magnet is arranged on the support frame, and the magnet is used to adsorb the axle to fix the support frame on the axle.

[0022] In the embodiment of the present application, a protective sleeve is further included, the protective sleeve is sleeved on the positioning member, and an anti-skid pattern is arranged on the surface of the protective sleeve.

[0023] In the embodiment of the present application, a buffer gasket is arranged on the side of the abutting block abutting against the wheel.

[0024] The positioning device for wheel assembly provided by the application comprises a positioning member, a first end of the positioning member is abutted against a gear on an axle, an adjusting assembly is arranged on a second end of the positioning member, and an abutting block is arranged on the adjusting assembly, the adjusting assembly is used for adjusting the abutting block to a preset position, and a wheel is positioned to a correct position by abutting the wheel against the abutting block. The step of subsequently adjusting the wheel is saved, and the wheel installation efficiency and accuracy are improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] The drawings incorporated into the specification and forming a part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application.

[0026] Figure 1 The structural schematic diagram of the positioning device for wheel assembly provided by the embodiment of the application is shown in the figure.

[0027] Figure 2 The structural schematic diagram of the positioning device for wheel assembly provided by the embodiment of the application is shown in the figure. Figure 1 The enlarged view of the first embodiment in A of the figure.

[0028] Figure 3 The structural schematic diagram of the positioning device for wheel assembly provided by the embodiment of the application is shown in the figure. Figure 1 The enlarged view of the second embodiment in A of the figure.

[0029] Figure 4 The structural schematic diagram of the positioning device for wheel assembly provided by the embodiment of the application is shown in the figure. Figure 1 The sectional view of B-B of the figure.

[0030] Reference signs:

[0031] 10-axle; 11-gear; 20-wheel;

[0032] 100-positioning member; 110-first threaded hole; 120-protruding part; 130-limiting hole; 131-first blocking part; 140-second threaded hole; 150-positioning rod; 160-supporting frame;

[0033] 200-adjusting assembly; 210-screw rod; 220-nut; 230-sliding rod; 231-second blocking part; 240-positioning bolt;

[0034] 300-abutting block.

[0035] The specific embodiments of the application have been shown in the above drawings, and will be described in more detail hereinafter. The drawings and the written description are not intended to limit the scope of the concept of the application in any way, but to illustrate the concept of the application for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0036] In order to make the purposes, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below in conjunction with the accompanying drawings in the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0037] The terms "first", "second", "third", "fourth" and the like in the description, claims, and accompanying drawings of the present application (if any) are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In the embodiments of the present application, the words "exemplary" or "for example" are used to mean example, instance, or illustration. Any embodiment or design described as "exemplary" or "for example" in the present application should not be interpreted as being more preferred or advantageous than other embodiments or designs. Rather, the use of "exemplary" or "for example" is intended to present relevant concepts in a concrete manner.

[0038] In the field of locomotive manufacturing and maintenance, wheel assembly is a very critical process, and its assembly precision and quality directly affect the safety and stability of locomotive operation. In the traditional locomotive wheel assembly process, the axle and wheel are connected by interference fit, and a specific wheel assembly template is used to control the assembly position.

[0039] Specifically, the wheel needs to be heated to 210°C during assembly. This high-temperature treatment is to take advantage of the thermal expansion and contraction properties of metals to expand the inner diameter of the wheel hub hole, so that the wheel axle seat position at room temperature can be easily fitted. However, this traditional process has many difficult problems. During the assembly stage, the template used only measures the distance from the axle shoulder to the end surface of the wheel hub hole, the measurement dimension is single, and it is difficult to accurately position comprehensively. When the hot wheel is fitted with the room temperature axle, the temperature of the wheel inner hub hole surface drops sharply, and quickly shrinks, causing the wheel to "lock" on the axle immediately, losing the possibility of displacement adjustment. Once the initial position of assembly is slightly deviated, since the wheel and axle are tightly locked, only the assembled part can be disassembled and reassembled.

[0040] This disassembly and reassembly operation has very serious consequences. On the one hand, after the wheel assembly is completed, the stress is highly concentrated on the surface of the wheel hub hole and the outer surface of the axle. When forced disassembly, the release of huge stress will cause instant damage to the wheel and axle. Light is surface scratch, affecting appearance and subsequent assembly precision; heavy is directly leading to axle and wheel scrap, greatly increasing production cost and production cycle.

[0041] In view of the above problems, the positioning device for wheel assembly provided in the application can install the wheel in place to the correct position, and improve the installation efficiency and accuracy of the wheel. The application will be further described below with reference to the drawings.

[0042] wherein, Figure 1 The structural schematic diagram of the positioning device for wheel assembly provided in the embodiment of the application is shown. Figure 2 The structural schematic diagram of the positioning device for wheel assembly provided in the embodiment of the application is shown. Figure 1 The enlarged view of the first embodiment at A in the above figure is shown. Figure 3 The enlarged view of the second embodiment at A in the above figure is shown. Figure 1 The enlarged view of the second embodiment at A in the above figure is shown. Figure 4 The enlarged view of B-B is shown.

[0043] In combination with the above figure, Figures 1-3 The application provides a positioning device for wheel assembly, which comprises:

[0044] The positioning member 100 is installed on the axle 10, and the first end of the positioning member 100 abuts against the gear 11 on the axle 10.

[0045] The adjusting assembly 200 is arranged on the second end of the positioning member 100.

[0046] The abutting block 300 is arranged on the adjusting assembly 200, and the adjusting assembly 200 is used to adjust the abutting block 300 to a preset position, and the wheel 20 is abutted against the abutting block 300 to position the wheel 20 to the correct position.

[0047] The positioning member 100 is arranged on the axle 10, and the adjusting assembly 200 on the positioning member 100 adjusts the abutting block 300 to the preset position as required. When the wheel 20 needs to be installed, the one end of the positioning member 100 is first abutted against the gear 11 on the axle 10, the wheel 20 after being heated is installed on the axle 10, and the wheel 20 is installed after being slowly pushed to abut against the abutting block 300. The subsequent step of adjusting the wheel 20 is saved, and the installation efficiency and accuracy of the wheel 20 are improved.

[0048] In the embodiment of the application, the adjusting assembly 200 described in the application comprises a screw rod 210 and a nut 220 arranged on the screw rod 210.

[0049] The second end of the positioning member 100 is provided with a first screw hole 110, one end of a screw rod 210 is connected with the first screw hole 110, and the other end is connected with the abutting block 300. After the abutting block 300 is adjusted to the preset position through cooperation of the screw rod 210 and the first screw hole 110, the nut 220 is moved along the screw rod 210 to the position abutting against the second end of the positioning member 100, so as to lock the screw rod 210.

[0050] In the embodiment, the second end of the positioning member 100 is close to the wheel 20 to be installed.

[0051] The adjusting assembly 200 in the embodiment includes the screw rod 210 and the nut 220 arranged on the screw rod 210. The screw rod 210 is used as a main adjusting component, one end of which is connected with the first screw hole 110 at the second end of the positioning member 100, and the other end is connected with the abutting block 300. By rotating the screw rod 210, the abutting block 300 can be moved along the axial direction of the screw rod 210, so as to adjust the position of the abutting block 300.

[0052] The nut 220 is used to lock the screw rod 210 after the abutting block 300 is adjusted to the preset position, so as to prevent the screw rod 210 from loosening during use and ensure that the position of the abutting block 300 is fixed. The nut 220 is threadedly connected with the screw rod 210. When the nut 220 is moved along the screw rod 210 to the position abutting against the second end of the positioning member 100, the nut 220 is tightened, so that enough pressure is generated on the positioning member 100, thereby limiting the rotation and axial movement of the screw rod 210, and the locking purpose is achieved.

[0053] Through cooperation of the screw rod 210 and the first screw hole 110 and the locking effect of the nut 220, the position of the abutting block 300 can be accurately adjusted, so as to accurately position the wheel 20 to the correct position, improve the assembly precision of the wheel 20, and be beneficial to ensuring the driving performance and safety of the vehicle.

[0054] The adjusting assembly 200 has simple structure and convenient operation. The position of the abutting block 300 can be adjusted only by rotating the screw rod 210, so that the positioning device can quickly adapt to the positioning requirements of wheels 20 of different specifications, and the versatility and flexibility of the positioning device are improved.

[0055] In the embodiment, the second end of the positioning member 100 is further provided with a protruding part 120, which is used to abut against the nut 220.

[0056] When the nut 220 moves along the screw rod 210 to abut against the protrusion 120, the contact area and friction force between the nut 220 and the positioning member 100 can be further increased, the locking effect is improved, the nut 220 is prevented from loosening due to vibration and the like during vehicle driving, and thus the stability and reliability of the positioning of the wheel 20 are ensured.

[0057] The nut 220 abuts against the protrusion 120 at the second end of the positioning member 100, the loosening of the nut 220 is effectively prevented, the position of the abutting block 300 is fixed, and thus the positioning stability of the wheel 20 during assembly and vehicle driving is ensured, and the failure and safety hazard caused by the position deviation of the wheel 20 are reduced.

[0058] In the embodiment of the present application, the adjusting assembly 200 comprises a sliding rod 230 and a positioning bolt 240.

[0059] The second end of the positioning member 100 is provided with a limiting hole 130, one end of the sliding rod 230 is in sliding connection with the limiting hole 130, and the other end is connected with the abutting block 300;

[0060] The second end of the positioning member 100 is further provided with a second screw hole 140, the second screw hole 140 is in communication with the limiting hole 130, after the abutting block 300 is adjusted to the preset position through cooperation of the sliding rod 230 and the limiting hole 130, the positioning bolt 240 is abutted to the sliding rod 230 through the second screw hole 140, so as to lock the sliding rod 230.

[0061] The adjusting assembly 200 in the embodiment mainly comprises the sliding rod 230 and the positioning bolt 240. The second end of the positioning member 100 is provided with the limiting hole 130, one end of the sliding rod 230 is inserted into the limiting hole 130 and is in sliding connection with the limiting hole 130, so that the sliding rod 230 can freely slide in the limiting hole 130 along the axial direction, thereby realizing the adjustment of the position. The other end of the sliding rod 230 is firmly connected with the abutting block 300, and the abutting block 300 is synchronously moved through the movement of the sliding rod 230.

[0062] The second end of the positioning member 100 is further provided with the second screw hole 140, the second screw hole 140 is in communication with the limiting hole 130. After the abutting block 300 is adjusted to the preset position through cooperation of the sliding rod 230 and the limiting hole 130, the positioning bolt 240 is passed through the second screw hole 140 and tightly abuts to the sliding rod 230 at the end portion. Through the tightening of the positioning bolt 240, the friction force between the bolt and the sliding rod 230 and the extrusion force of the bolt on the sliding rod 230 are utilized to firmly lock the sliding rod 230 at the current position, the displacement of the sliding rod 230 during use is prevented, the fixation of the position of the abutting block 300 is ensured, and thus the accuracy and stability of the positioning of the mechanical components are ensured.

[0063] The design of the limiting hole 130 and the second threaded hole 140 at the second end of the positioning member 100 is carefully optimized. The hole diameter of the limiting hole 130 matches the diameter of the sliding rod 230, which not only ensures that the sliding rod 230 can smoothly slide in the hole, but also effectively limits the radial displacement thereof, ensuring that the sliding rod 230 can only move in the axial direction, thereby improving the accuracy and stability of adjustment.

[0064] The position and angle of the second threaded hole 140 are also accurately designed, so that the communication part of the limiting hole 130 can better cooperate with the positioning bolt 240 to lock the sliding rod 230. When the positioning bolt 240 is tightened, it can uniformly apply pressure to the sliding rod 230, further enhancing the locking effect and preventing the sliding rod 230 from loosening due to factors such as vibration and external force, thereby ensuring the positioning accuracy of mechanical components during long-term use.

[0065] In the embodiment of the present application, a first blocking part 131 is arranged at the hole opening of the limiting hole 130, and a second blocking part 231 is arranged at one end of the sliding rod 230 located in the limiting hole 130, the first blocking part 131 is used to abut against the second blocking part 231 to prevent the sliding rod 230 from disengaging from the limiting hole 130.

[0066] A first blocking part 131 is arranged at the hole opening of the limiting hole 130, which can be an annular flange extending outward from the edge of the limiting hole 130, or a block fixedly installed at the hole opening, etc. Meanwhile, a second blocking part 231 is arranged at one end of the sliding rod 230 located in the limiting hole 130, which can be a thickened part at the end of the sliding rod 230, or a blocking sheet welded at the end of the sliding rod 230, etc. When the sliding rod 230 slides in the limiting hole 130, the first blocking part 131 cooperates with the second blocking part 231, the first blocking part 131 can effectively block the second blocking part 231 to prevent the sliding rod 230 from accidentally disengaging from the limiting hole 130, thereby ensuring the stability and reliability of the positioning device during use.

[0067] As shown in FIG. 1, Figure 4 In the embodiment of the present application, the positioning member 100 includes a positioning rod 150 and at least one support frame 160;

[0068] The support frame 160 is arranged on the positioning rod 150, the adjustment assembly 200 is arranged on the positioning rod 150, and one end of the support frame 160 away from the positioning rod 150 is used to connect with the axle 10.

[0069] The positioning member 100 comprises a positioning rod 150 and at least one support frame 160. The positioning rod 150 serves as a main support structure, has a certain length and strength, can bear the force transmitted by the axle 10, and provides a stable mounting base for the support frame 160. The support frame 160 is a key component for connecting the positioning rod 150 and the axle 10, is fixedly connected to one end of the positioning rod 150, and is connected to the other end of the axle 10, so as to realize accurate positioning of the axle 10.

[0070] In the embodiment of the present application, the support frame 160 is in the shape of a circular arc.

[0071] The support frame 160 is designed in the shape of a circular arc, and the radius of the circular arc matches the circumference of the axle 10. The circular arc-shaped support frame 160 is made of high-strength alloy steel material, has good toughness and strength, and can bear various forces generated by the axle 10 during operation. The inner diameter of the circular arc-shaped support frame 160 is slightly larger than the outer diameter of the axle 10, so that the circular arc-shaped support frame 160 can be smoothly fitted on the axle 10, and at the same time, the circular arc-shaped support frame 160 can ensure sufficient contact area with the axle 10, thereby providing stable support and positioning.

[0072] In the embodiment of the present application, the support frame 160 is a magnet frame.

[0073] Alternatively, the support frame 160 is provided with a magnet, and the magnet is used to adsorb the axle 10 to fix the support frame 160 on the axle 10.

[0074] When the magnet frame is close to the axle 10, the magnet frame tightly adsorbs the component on the surface thereof through magnetic adsorption, so as to realize support and positioning of the component. The connection mode of magnetic adsorption is not only simple and fast, but also does not need to use additional connecting members, thereby reducing the installation steps and cost. In addition, due to the adjustability of the magnetic force, the magnet frame can adapt to components of different sizes and shapes within a certain range, thereby improving the versatility and flexibility of the device.

[0075] In the embodiment of the present application, a protective sleeve is further included, the protective sleeve is sleeved on the positioning member 100, and the surface of the protective sleeve is provided with anti-skid lines. The positioning member 100 is convenient to take and avoid sliding.

[0076] In the embodiment of the present application, the side of the abutting block 300 abutting against the wheel 20 is provided with a buffer gasket. The buffer gasket is used to reduce the impact force between the axle 10 and the abutting block 300, so as to avoid damage to the axle 10.

[0077] The positioning device for wheel assembly provided by the application comprises a positioning member, the positioning member is installed on an axle, a first end of the positioning member abuts against a gear on the axle; an adjusting assembly is arranged on a second end of the positioning member; an abutting block is arranged on the adjusting assembly, the adjusting assembly is used for adjusting the abutting block to a preset position, and a wheel is positioned to a correct position by abutting against the abutting block. The step of subsequently adjusting the wheel is saved, and the wheel installation efficiency and accuracy are improved.

[0078] The embodiments or implementations in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the embodiments can be referred to each other.

[0079] It should be noted that the embodiments referred to in the specification as "one embodiment", "an embodiment", "exemplary embodiment", "some embodiments" and the like can include specific features, structures or characteristics, but not necessarily every embodiment includes the specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when a specific feature, structure or characteristic is described in combination with an embodiment, it is within the knowledge of those skilled in the art to realize such feature, structure or characteristic in combination with other embodiments that are explicitly or implicitly described.

[0080] Generally, the terms should be understood at least partially by the usage in the context. For example, the term "one or more" used in the specification can be used to describe any feature, structure or characteristic in the singular or can be used to describe the combination of features, structures or characteristics in the plural, at least in part according to the context in which the term is used. Similarly, terms such as "a" or "said" can be understood, at least in part, to convey a singular usage or to convey a plural usage, at least in part according to the context in which the terms are used.

[0081] It should be easily understood that "on", "above" and "over" in the present disclosure should be interpreted in the broadest way, so that "on" not only means "directly on", but also includes the meaning of "on" with intermediate features or layers therebetween, and "above" or "over" not only includes the meaning of "above" or "over", but also can include the meaning of "above" or "over" without intermediate features or layers therebetween (i.e. directly on).

[0082] In addition, spatially relative terms, such as "beneath", "below", "lower", "above", "upper" and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0083] Finally, it should be noted that the above-described embodiments are merely intended for describing and illustrating, not limiting, the technical solutions of the present application; even though the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A positioning device for wheel assembly, characterized by, The application relates to a positioning device for a vehicle axle. The positioning device comprises a positioning member (100) for being mounted on a vehicle axle (10), a first end of the positioning member (100) being used for abutting against a gear (11) on the vehicle axle (10); an adjusting assembly (200) arranged at a second end of the positioning member (100); and an abutting block (300) arranged on the adjusting assembly (200), the adjusting assembly (200) being used for adjusting the abutting block (300) to a preset position, and a vehicle wheel (20) being abutted against the abutting block (300) so as to position the vehicle wheel (20) to a correct position. The adjusting assembly (200) comprises a screw rod (210) and a nut (220) arranged on the screw rod (210), and the second end of the positioning member (100) is provided with a first screw hole (110). One end of the screw rod (210) is connected with the first screw hole (110), and the other end is connected with the abutting block (300), the nut (220) is moved along the screw rod (210) to a position abutting against the second end of the positioning member (100) after the abutting block (300) is adjusted to the preset position through cooperation of the screw rod (210) and the first screw hole (110), so as to lock the screw rod (210).

2. Positioning device for wheel assembly according to claim 1, characterized in that The second end of the positioning member (100) is further provided with a protruding part (120) for abutting against the nut (220). The adjusting assembly (200) further comprises a sliding rod (230) and a positioning bolt (240), and the second end of the positioning member (100) is provided with a limiting hole (130).

3. Positioning device for wheel assembly according to claim 2, characterized in that One end of the sliding rod (230) is slidably connected with the limiting hole (130), and the other end is connected with the abutting block (300).

4. The positioning device for wheel assembly according to claim 1, wherein The second end of the positioning member (100) is further provided with a second screw hole (140) in communication with the limiting hole (130), the positioning bolt (240) is abutted against the sliding rod (230) through the second screw hole (140) after the abutting block (300) is adjusted to the preset position through cooperation of the sliding rod (230) and the limiting hole (130), so as to lock the sliding rod (230). A first blocking part (131) is arranged at an opening of the limiting hole (130), one end of the sliding rod (230) arranged in the limiting hole (130) is provided with a second blocking part (231), and the first blocking part (131) is used for abutting against the second blocking part (231) to prevent the sliding rod (230) from being separated from the limiting hole (130). The positioning member (100) comprises a positioning rod (150) and at least one supporting frame (160).

5. The positioning device for wheel assembly according to claim 4, wherein The supporting frame (160) is arranged on the positioning rod (150), the adjusting assembly (200) is arranged on the positioning rod (150), and one end of the supporting frame (160) away from the positioning rod (150) is used for being connected with the vehicle axle (10).

6. Positioning device for wheel assembly according to any of claims 1-5, characterized in that ​ ​ 7. The positioning device for wheel assembly according to claim 6, wherein The support frame (160) is in the shape of a circular arc.

8. The positioning device for wheel assembly according to claim 7, wherein The support frame (160) is a magnet frame. Alternatively, a magnet is arranged on the support frame (160), and the magnet is used to adsorb the axle (10) to fix the support frame (160) on the axle (10).

9. Positioning device for wheel assembly according to any of claims 1-5, characterized in that A protective sleeve is further included, and the protective sleeve is sleeved on the positioning piece (100), and a non-slip pattern is arranged on the surface of the protective sleeve.

10. A positioning device for wheel assembly according to any one of claims 1-5, characterized in that A buffer gasket is arranged on the side of the abutting block (300) abutting against the wheel (20).

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