Quick release positioning device for motorcycle wheel hub

Abstract

The utility model belongs to motorcycle wheel hub quick -detachable positioning technical field discloses a quick -detachable positioning device of motorcycle wheel hub, including wheel hub connecting seat, axle positioning assembly, quick -detachable locking assembly and dustproof protection subassembly, wheel hub connecting seat is integrally formed with motorcycle wheel hub, dustproof protection subassembly is set in wheel hub connecting seat outside, axle positioning assembly is embedded in wheel hub connecting seat inner hole, quick -detachable locking assembly is worn in axle positioning assembly center, disc spring group provides the pre -tightening force of continuous stability, cooperation stop rotation washer and locking nut's anti -looseness design, effectively resist the vibration impact in motorcycle driving, avoid component loose, the self -locking characteristic of cam structure further promotes locking reliability, positioning bushing can be replaced according to different model motorcycle axle size, wheel hub connecting seat adopts the standardization design, adapts to a variety of displacement motorcycle wheel hub, reduces the special component design cost, promotes the universality.

Description

Technical Field

[0001] This utility model relates to the field of quick-release positioning technology for motorcycle wheel hubs, and in particular to a quick-release positioning device for motorcycle wheel hubs. Background Technology

[0002] As a core component connecting the wheel and the frame, the ease of disassembly and assembly, as well as the positioning accuracy, directly affect maintenance efficiency and driving safety. Traditional motorcycle wheel hubs often use multiple sets of bolts for fixing, requiring the use of wrenches and other tools to tighten each bolt individually during disassembly and assembly. This process is cumbersome, especially in outdoor emergency repair scenarios, and is time-consuming and labor-intensive. At the same time, uneven force can easily occur during bolt tightening, leading to wheel hub positioning deviations. After assembly, this may cause safety hazards such as wheel wobble and braking deviations.

[0003] Existing quick-release devices have many shortcomings: low positioning accuracy, relying mostly on coarse positioning with conical surfaces or pin holes, which cannot guarantee the coaxiality of the wheel hub and shaft system, affecting driving stability; poor locking reliability, using a single spring or buckle structure, which is prone to loosening under long-term vibration, posing a safety risk; weak adaptability, requiring the design of special quick-release structures for different motorcycle models, resulting in poor versatility; and insufficient wear and weather resistance, as mud, sand, and rainwater can easily corrode the quick-release components during outdoor use, leading to jamming and failure. Therefore, we propose a quick-release positioning device for motorcycle wheel hubs. Utility Model Content

[0004] The purpose of this invention is to provide a quick-release positioning device for motorcycle wheel hubs, which solves the existing problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A quick-release positioning device for a motorcycle wheel hub includes a wheel hub connecting seat, a shaft positioning assembly, a quick-release locking assembly, and a dustproof protective assembly. The wheel hub connecting seat is integrally formed with the motorcycle wheel hub. The shaft positioning assembly is embedded in the inner hole of the wheel hub connecting seat. The quick-release locking assembly passes through the center of the shaft positioning assembly. The dustproof protective assembly is sleeved on the outer side of the wheel hub connecting seat. The shaft positioning assembly includes a positioning bushing and a positioning pin. The quick-release locking assembly includes a quick-release handle, a locking screw, and a disc spring assembly.

[0006] Preferably, the positioning bushing is made of high-strength alloy material, with a limiting step in the inner hole and a conical surface on the outer side that matches the inner hole of the wheel hub connecting seat. Three to four positioning holes are evenly distributed on the conical surface. The positioning pin is fixed to the inner hole of the wheel hub connecting seat and is clearance-fitted with the positioning hole. The end of the positioning pin is provided with a guide chamfer.

[0007] Preferably, the quick-release handle is hinged to one end of the locking screw, and the other end of the locking screw is provided with an external thread that matches the internal thread hole of the shaft flange; the disc spring assembly is sleeved on the locking screw, located between the positioning bushing and the shaft flange, and consists of 2-3 disc springs stacked in opposite directions.

[0008] Preferably, the quick-release locking assembly further includes an anti-rotation washer and a locking nut. The anti-rotation washer is sleeved on the locking screw and located outside the disc spring assembly. The locking nut engages with the external thread of the locking screw to press the anti-rotation washer.

[0009] Preferably, the dustproof protection component includes a dust cover and a sealing ring. The dust cover is made of elastic rubber, with one end fixed to the hub connecting seat by a clamp and the other end fitting against the shaft flange. The sealing ring is embedded in the limiting step of the positioning bushing and fits against the locking screw.

[0010] Preferably, the fit clearance between the positioning pin and the positioning hole is 0.02-0.05mm, and the taper of the positioning bushing is 1:10-1:15, to ensure that the coaxiality of the hub and the shaft system is ≤0.03mm.

[0011] Preferably, the quick-release handle has a cam structure on its inner side and a return torsion spring at the hinge; the locking screw has a guide cylinder in the middle that matches the inner hole of the positioning bushing, and the surface of the guide cylinder has a lubricating coating.

[0012] Preferably, the inner hole of the hub connecting seat is provided with an annular oil groove, and the outer side of the positioning bushing is provided with an oil outlet corresponding to the annular oil groove, and the annular oil groove is filled with solid grease.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model discloses a quick-release positioning device for a motorcycle wheel hub. The conical surface of the positioning bushing fits into the inner hole of the wheel hub connecting seat, and with the precise fit of multiple positioning pins and positioning holes, the coaxiality of the wheel hub and shaft system is accurately controlled. The conical surface fit structure can automatically center itself, avoid assembly deviation, and improve driving stability. The quick-release handle drives the locking screw through a cam structure to quickly lock or unlock, and can complete the disassembly and assembly without tools. The operation time is reduced by more than 80% compared with the traditional bolt method, which is especially suitable for outdoor emergency repair scenarios. This utility model discloses a quick-release positioning device for a motorcycle wheel hub. The disc spring assembly provides a continuous and stable preload force, and the anti-loosening design of the anti-rotation washer and locking nut effectively resists the vibration and impact during motorcycle operation and prevents parts from loosening. The self-locking characteristic of the cam structure further improves the locking reliability. The positioning bushing can be replaced according to the shaft size of different motorcycle models. The wheel hub connecting seat adopts a standardized design, which is compatible with various displacement motorcycle wheel hubs, reducing the design cost of special parts and improving versatility. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial three-dimensional structural diagram of the shaft positioning component in this utility model; Figure 3 This is a partial three-dimensional structural diagram of the present invention; Figure 4 for Figure 3 A schematic diagram of part A in the diagram. In the diagram: 1. Hub connecting seat; 101. Annular oil groove; 102. Solid grease; 2. Shaft positioning assembly; 201. Positioning bushing; 202. Positioning pin; 203. Limiting step; 204. Conical surface; 205. Positioning hole; 206. Guide chamfer; 207. Oil outlet hole; 3. Quick-release locking assembly; 301. Quick-release handle; 302. Locking screw; 303. Disc spring assembly; 304. External thread; 305. Anti-rotation washer; 306. Locking nut; 307. Cam structure; 308. Return torsion spring; 309. Guide cylinder; 310. Lubricating coating; 4. Dustproof protection assembly; 401. Dust cover; 402. Sealing ring; 403. Clamp; 5. Motorcycle wheel hub; 6. Shaft flange; 601. Internal threaded hole. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] refer to Figure 1-4A quick-release positioning device for a motorcycle wheel hub includes a wheel hub connecting seat 1, a shaft positioning assembly 2, a quick-release locking assembly 3, and a dustproof protection assembly 4. The wheel hub connecting seat 1 is integrally formed with the motorcycle wheel hub 5. The shaft positioning assembly 2 is embedded in the inner hole of the wheel hub connecting seat 1. The quick-release locking assembly 3 passes through the center of the shaft positioning assembly 2. The dustproof protection assembly 4 is sleeved on the outer side of the wheel hub connecting seat 1. The shaft positioning assembly 2 includes a positioning bushing 201 and a positioning pin 202. The quick-release locking assembly 3 includes a quick-release handle 301, a locking screw 302, and a disc spring assembly 303. The conical surface 204 of the positioning bushing 201 fits against the inner hole of the wheel hub connecting seat 1. With the precise engagement of multiple positioning pins 202 and positioning holes 205, the wheel hub 5 and the shaft system are aligned. Precise coaxiality control; the conical surface 204 mating structure can automatically center, avoiding assembly deviations and improving driving stability; the quick-release handle 301 drives the locking screw 302 to quickly lock or unlock through the cam structure 307, allowing for disassembly and assembly without tools, reducing operation time by more than 80% compared to traditional bolt methods, making it particularly suitable for outdoor emergency repair scenarios; in this embodiment, the positioning bushing 201 is made of high-strength alloy material, with a limiting step 203 in the inner hole and a conical surface 204 on the outer side that matches the inner hole of the wheel hub connecting seat 1, with 3-4 positioning holes 205 evenly distributed on the conical surface 204; the positioning pin 202 is fixed to the inner hole of the wheel hub connecting seat 1, with clearance fit with the positioning hole 205, and the end of the positioning pin 202 is provided with a guide chamfer 206.

[0018] In this embodiment, the quick-release handle 301 is hinged to one end of the locking screw 302, and the other end of the locking screw 302 is provided with an external thread 304, which is adapted to the internal thread hole 601 of the shaft flange 6; the disc spring assembly 303 is sleeved on the locking screw 302, located between the positioning bushing 201 and the shaft flange 6, and is composed of 2-3 disc springs stacked in opposite directions; the disc spring assembly 303 provides a continuous and stable preload force, and together with the anti-loosening design of the anti-rotation washer 305 and the locking nut 306, it effectively resists the vibration and impact during motorcycle operation and prevents parts from loosening; cam structure The self-locking characteristic of 307 further enhances the locking reliability; the positioning bushing 201 can be replaced according to the shaft size of different motorcycle models; the wheel hub connecting seat 1 adopts a standardized design to adapt to various displacement motorcycle wheel hubs 5, reducing the design cost of special parts and improving versatility; in this embodiment, the quick-release locking assembly 3 also includes an anti-rotation washer 305 and a locking nut 306. The anti-rotation washer 305 is sleeved on the locking screw 302 and located outside the disc spring assembly 303. The locking nut 306 is screwed into the external thread 304 of the locking screw 302 to press the anti-rotation washer 305.

[0019] In this embodiment, the dustproof protection component 4 includes a dust cover 401 and a sealing ring 402. The dust cover 401 is made of elastic rubber, with one end fixed to the hub connecting seat 1 by a clamp 403, and the other end fitting against the shaft flange 6. The sealing ring 402 is embedded in the limiting step 203 of the positioning bushing 201 and fits against the locking screw 302. The dust cover 401 and the sealing ring 402 form a double protection to prevent the intrusion of mud, sand, and rainwater. The annular oil groove 101 and the solid grease 102 achieve continuous lubrication. The high-strength material and lubricating coating 310 enhance wear resistance and adapt to complex outdoor environments; the elastic characteristics of the disc spring assembly 303 can absorb impact loads during driving, reduce rigid collisions between the wheel hub 5 and the shaft system, protect key components such as bearings, and extend the overall service life; in this embodiment, the fitting clearance between the positioning pin 202 and the positioning hole 205 is 0.02-0.05mm, and the taper of the tapered surface 204 of the positioning bushing 201 is 1:10-1:15, ensuring that the coaxiality between the wheel hub 5 and the shaft system is ≤0.03mm.

[0020] In this embodiment, the quick-release handle 301 has a cam structure 307 on its inner side and a return torsion spring 308 at the hinge; the locking screw 302 has a guide cylinder 309 in the middle that is adapted to the inner hole of the positioning bushing 201, and the surface of the guide cylinder 309 is provided with a lubricating coating 310; in this embodiment, the inner hole of the hub connecting seat 1 has an annular oil groove 101, and the outer side of the positioning bushing 201 has an oil outlet hole 207 corresponding to the annular oil groove 101, and the annular oil groove 101 is filled with solid grease 102.

[0021] Specifically, the conical surface 204 of the positioning bushing 201 fits into the inner hole of the wheel hub connecting seat 1, and with the precise fit of multiple positioning pins 202 and positioning holes 205, the coaxiality of the wheel hub 5 and the shaft system is precisely controlled; the structure of the conical surface 204 can automatically center itself, avoid assembly deviation, and improve driving stability; the quick-release handle 301 drives the locking screw 302 to quickly lock or unlock through the cam structure 307, and can complete the disassembly and assembly without tools, reducing the operation time by more than 80% compared with the traditional bolt method, which is especially suitable for outdoor emergency maintenance scenarios; The disc spring assembly 303 provides a continuous and stable preload force, and together with the anti-rotation washer 305 and the locking nut 306, it effectively resists the vibration and impact during motorcycle operation and prevents parts from loosening; the self-locking characteristic of the cam structure 307 further improves the locking reliability; the positioning bushing 201 can be replaced according to the shaft size of different motorcycle models; the wheel hub connecting seat 1 adopts a standardized design to adapt to various displacement motorcycle wheel hubs 5, reducing the design cost of special parts and improving versatility; The dust cover 401 and the sealing ring 402 form a double protection to prevent mud, sand and rainwater from entering; the annular oil groove 101 and the solid grease 102 achieve continuous lubrication; the high-strength material of the positioning bushing 201 and the lubricating coating 310 improve wear resistance and adapt to complex outdoor environments; the elastic characteristics of the disc spring assembly 303 can absorb the impact load during driving, reduce the rigid collision between the wheel hub 5 and the shaft system, protect key components such as bearings, and extend the overall service life. The guide chamfer 206 at the end of the positioning pin 202 facilitates quick alignment with the positioning hole 205, and the reset torsion spring 308 of the quick release handle 301 assists in reset. The assembly process requires no professional skills, reducing the threshold for operators. The components are highly integrated, the overall structure is compact, and it does not occupy extra space around the wheel hub 5, making it suitable for the narrow installation environment of motorcycles without the need to modify the frame.

[0022] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0023] The quick-release positioning device for a motorcycle wheel hub provided by this utility model has been described in detail above. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A quick-release positioning device for a motorcycle wheel hub, characterized in that, include: The wheel hub connecting seat (1), shaft positioning assembly (2), quick-release locking assembly (3) and dustproof protection assembly (4) are integrally formed with the motorcycle wheel hub (5). The shaft positioning assembly (2) is embedded in the inner hole of the wheel hub connecting seat (1). The quick-release locking assembly (3) passes through the center of the shaft positioning assembly (2). The dustproof protection assembly (4) is sleeved on the outside of the wheel hub connecting seat (1). The shaft positioning assembly (2) includes a positioning bushing (201) and a positioning pin (202). The quick-release locking assembly (3) includes a quick-release handle (301), a locking screw (302) and a disc spring assembly (303).

2. The quick-release positioning device for a motorcycle wheel hub according to claim 1, characterized in that, The positioning bushing (201) is made of high-strength alloy material. The inner hole is provided with a limiting step (203), and the outer side is provided with a conical surface (204) that is adapted to the inner hole of the hub connecting seat (1). 3-4 positioning holes (205) are evenly distributed on the conical surface (204). The positioning pin (202) is fixed in the inner hole of the hub connecting seat (1) and is clearance-fitted with the positioning hole (205). The end of the positioning pin (202) is provided with a guide chamfer (206).

3. The quick-release positioning device for a motorcycle wheel hub according to claim 1, characterized in that, The quick-release handle (301) is hinged to one end of the locking screw (302), and the other end of the locking screw (302) is provided with an external thread (304) that is compatible with the internal thread hole (601) of the shaft flange (6). The disc spring assembly (303) is sleeved on the locking screw (302) and located between the positioning bushing (201) and the shaft flange (6), and consists of 2-3 disc springs stacked in opposite directions.

4. The quick-release positioning device for a motorcycle wheel hub according to claim 1, characterized in that, The quick-release locking assembly (3) also includes an anti-rotation washer (305) and a locking nut (306). The anti-rotation washer (305) is sleeved on the locking screw (302) and located outside the disc spring assembly (303). The locking nut (306) engages with the external thread (304) of the locking screw (302) to press the anti-rotation washer (305).

5. The quick-release positioning device for a motorcycle wheel hub according to claim 1, characterized in that, The dustproof protection component (4) includes a dust cover (401) and a sealing ring (402). The dust cover (401) is made of elastic rubber. One end is fixed to the hub connecting seat (1) by a clamp (403), and the other end is attached to the shaft flange (6). The sealing ring (402) is embedded in the limiting step (203) of the positioning bushing (201) and is attached to the locking screw (302).

6. The quick-release positioning device for a motorcycle wheel hub according to claim 1, characterized in that, The fitting clearance between the positioning pin (202) and the positioning hole (205) is 0.02-0.05mm, and the taper of the tapered surface (204) of the positioning bushing (201) is 1:10-1:15, ensuring that the coaxiality of the hub (5) and the shaft system is ≤0.03mm.

7. The quick-release positioning device for a motorcycle wheel hub according to claim 3, characterized in that, The quick-release handle (301) has a cam structure (307) on its inner side and a reset torsion spring (308) at the hinge. The locking screw (302) has a guide cylinder (309) in the middle that is adapted to the inner hole of the positioning bushing (201). The surface of the guide cylinder (309) is covered with a lubricating coating (310).

8. The quick-release positioning device for a motorcycle wheel hub according to claim 1, characterized in that, The inner hole of the hub connecting seat (1) is provided with an annular oil groove (101), and the outer side of the positioning bushing (201) is provided with an oil outlet hole (207) corresponding to the annular oil groove (101). The annular oil groove (101) is filled with solid grease (102).

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