High-strength wheel hub nut

Abstract

The utility model discloses high strength wheel hub nut relates to the field of nut, and the ordinary wheel hub nut of prior art is limited to the fixing force of wheel hub, and the problem that the serious hidden danger of driving safety is brought to the situation that wheel hub loosens easily is solved. The wheel hub nut main part includes the conical sleeve portion, wheel hub nut main part one side cooperation and be connected with the reinforced locking sleeve pipe, the reinforced locking sleeve pipe includes the outer ring portion, the outer ring portion outer surface annular array has set up the arc slot, the outer ring portion outer surface along the inner end of arc slot central position sets up the sliding hole groove, the reinforced locking sleeve pipe is connected with a plurality of reinforced extruding spare on cooperation, and the reinforced extruding spare includes the arc extruding board in the arc slot inside, the arc extruding board inner end center fixed has the intermediate sliding column, the other end of intermediate sliding column along the outer ring portion inside fixed has the drive block, and the inner surface of drive block is the arc surface, and the arc surface and conical sleeve portion outer surface match.

Description

Technical Field

[0001] This utility model relates to the field of nuts, specifically high-strength wheel hub nuts. Background Technology

[0002] Wheel nuts are critical fasteners used to secure wheel hubs to axles in wheeled vehicles such as automobiles and motorcycles, as well as industrial machinery. Their performance directly affects the safety, stability, and service life of the vehicle.

[0003] Wheel nuts secure the wheel hub to the axle via a threaded connection and must withstand dynamic loads (such as vibration, impact, and shear force) and static loads (such as vehicle weight) during vehicle operation. For example, Chinese authorized patent CN 214465478 U (A High-Strength Wheel Nut) includes a wheel nut body and a waterproof cap. The wheel nut body and the waterproof cap are fixedly connected. The bottom of the wheel nut body has a connecting flange, the top of the wheel nut body has a first fixing component, and the side of the waterproof cap has a second fixing component. The first and second fixing components are fixed together by bolts. This high-strength wheel nut protects the wheel nut body and connecting bolts by providing a waterproof cap on top, preventing rust and damage from impacts. The wheel nut body and waterproof cap are designed as separate units, facilitating disassembly and replacement and reducing maintenance.

[0004] While the aforementioned existing technology has the function of fixing screws to lock the wheel hub, it mainly relies on the threaded engagement with the stud to achieve the fixation of the wheel hub. Ordinary wheel hub nuts have limited fixing force on the wheel hub and cannot effectively cope with the large stress generated by the vehicle during driving, which can easily lead to wheel hub loosening and pose a serious threat to driving safety. Utility Model Content

[0005] The purpose of this invention is to provide a high-strength wheel hub nut to solve the problem mentioned in the background art that ordinary wheel hub nuts have limited fixing force on the wheel hub, which easily leads to wheel hub loosening and poses a serious threat to driving safety.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-strength wheel hub nut, comprising a wheel hub nut body, the wheel hub nut body including a conical sleeve portion; a reinforcing locking sleeve is fitted to one side of the wheel hub nut body, the reinforcing locking sleeve including an outer ring portion, the outer surface of the outer ring portion having an arc-shaped groove in an annular array, and a sliding hole groove being formed at the center of the inner end of the arc-shaped groove on the outer surface of the outer ring portion; multiple reinforcing extrusion members are fitted to the reinforcing locking sleeve, the reinforcing extrusion members being arranged in an annular array, each reinforcing extrusion member including an arc-shaped extrusion plate located inside the arc-shaped groove, a central sliding column being fixed at the center of the inner end of the arc-shaped extrusion plate, the central sliding column sliding along the sliding hole groove, and a driving block being fixed at the other end of the central sliding column along the inner side of the outer ring portion, the inner surface of the driving block being an arc-shaped surface matching the outer surface of the conical sleeve portion.

[0007] Preferably, the inner surface of the outer ring is fixed with a plurality of straight sections in an annular array, the straight sections corresponding to the positions of the arc-shaped slots inside and outside, and a pressure spring is installed between the straight sections and the drive block along the outside of the intermediate sliding column.

[0008] Preferably, the outer side of the conical sleeve portion is provided with an outer annular groove, and the inner wall of the conical sleeve portion is provided with an inner annular groove along the inner side of the outer annular groove.

[0009] Preferably, an annular connecting end plate is integrally connected to the outer side of the outer ring portion. The annular connecting end plate is arranged perpendicular to the axial direction of the outer ring portion. An inner ring portion is integrally connected to the other end of the annular connecting end plate. The inner ring portion is located inside the outer ring portion and is concentrically arranged with the outer ring portion. The length of the inner ring portion is greater than the length of the outer ring portion. A limiting ring portion is integrally connected to the other end of the inner ring portion. The limiting ring portion slides along the inner annular groove, and the inner ring portion slides along the outer annular groove.

[0010] Preferably, the hub nut body further includes a hexagonal flange, a limiting flange, and a cylindrical sleeve. The hexagonal flange, the limiting flange, the cylindrical sleeve, and the conical sleeve are arranged from left to right. The hexagonal flange, the limiting flange, the cylindrical sleeve, and the conical sleeve are integrally formed. An outer ring groove is formed on the outer surface of the cylindrical sleeve near the limiting flange.

[0011] Preferably, a locking washer is provided in the outer ring groove, and the locking washer slides in the outer ring groove.

[0012] Preferably, the inner surface of the hub nut body is provided with an internal locking thread.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, by strengthening the special connection structure between the locking sleeve and the main body of the wheel hub nut and setting the reinforcing extrusion component, during the installation process, when the main body of the wheel hub nut moves inward along the stud, it can drive the reinforcing locking sleeve to move synchronously, and realize the extrusion of the reinforcing extrusion component on the wheel hub mounting hole at a specific position, thereby enhancing the locking force of the nut on the wheel hub, effectively preventing the wheel hub from loosening, and improving the safety of vehicle driving.

[0015] (2) In this utility model, the sliding fit design of the inner ring and the limiting ring with the outer ring slot and the inner ring slot makes the locking sleeve maintain a relatively stable position relationship during the rotation and movement of the hub nut body, thus ensuring the stability and reliability of the entire locking process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the high-strength wheel hub nut of this utility model from one perspective.

[0017] Figure 2 This is a schematic diagram of the overall structure of the high-strength wheel hub nut of this utility model from another perspective;

[0018] Figure 3 This is a cross-sectional view of the high-strength wheel hub nut of this utility model;

[0019] Figure 4 This is a schematic diagram of the main body of the high-strength wheel hub nut of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the reinforced locking sleeve for the high-strength wheel hub nut of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the reinforced extrusion part of the high-strength wheel hub nut of this utility model.

[0022] In the diagram: 1. Hub nut body; 2. Hexagonal flange; 3. Limiting flange; 4. Cylindrical sleeve; 5. Conical sleeve; 6. Outer annular groove; 7. Internal locking thread; 8. Outer annular slot; 9. Inner annular slot; 10. Locking washer; 11. Reinforcing locking sleeve; 12. Outer ring; 13. Arc-shaped slot; 14. Annular connecting end plate; 15. Inner ring; 16. Limiting ring; 17. Straight section; 18. Sliding hole groove; 19. Reinforcing extrusion part; 20. Arc-shaped extrusion plate; 21. Intermediate sliding column; 22. Drive block; 23. Arc-shaped surface; 24. Pressure spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figures 1-6 This utility model provides an embodiment of a high-strength wheel hub nut, mainly comprising a wheel hub nut body 1. The wheel hub nut body 1 further includes a hexagonal flange portion 2, a limiting flange 3, a cylindrical sleeve portion 4, and a conical sleeve portion 5. The hexagonal flange portion 2, the limiting flange 3, the cylindrical sleeve portion 4, and the conical sleeve portion 5 are arranged from left to right, and are integrally formed. The integrally formed design makes the overall structure of the wheel hub nut body 1 more robust, able to withstand greater external forces without being easily damaged, improving the strength and durability of the nut, and enhancing the fixing effect on the wheel hub. An outer annular groove 6 is formed on the outer surface of the cylindrical sleeve portion 4 near the limiting flange 3, and a locking washer 10 is provided in the outer annular groove 6, which slides within the outer annular groove 6. Once installed in place, the locking washer 10 contacts the inner end face of the countersunk hole in the hub, increasing the friction between the nut and the hub, further preventing the nut from loosening and improving the stability of the fixation. The inner surface of the hub nut body 1 is provided with an internal locking thread 7, which is used to mate with the external thread of the stud to achieve the initial connection between the nut and the stud.

[0025] A reinforcing locking sleeve 11 is fitted to one side of the hub nut body 1. The reinforcing locking sleeve 11 includes an outer ring portion 12, and multiple straight portions 17 are fixed in a ring array on the inner surface of the outer ring portion 12. An arc-shaped groove 13 is formed in the ring array on the outer surface of the outer ring portion 12, and a sliding hole groove 18 is formed at the center of the inner end of the arc-shaped groove 13 on the outer surface of the outer ring portion 12.

[0026] Multiple reinforcing extrusion members 19 are connected to the reinforcing locking sleeve 11, arranged in a circular array. Each reinforcing extrusion member 19 includes an arc-shaped extrusion plate 20 located inside an arc-shaped slot 13. A central sliding post 21 is fixed at the center of the inner end of the arc-shaped extrusion plate 20. The central sliding post 21 slides along the sliding hole slot 18. A driving block 22 is fixed at the other end of the central sliding post 21 along the inner edge of the outer ring 12. The inner surface of the driving block 22 is an arc-shaped surface 23, which matches the outer surface of the conical sleeve portion 5. When installing this nut, the reinforcing locking sleeve 11 is first inserted along the outside of the stud. This design allows the reinforcing locking sleeve 11 to be in place beforehand. Subsequently, the inner locking thread 7 of the hub nut body 1 contacts the outer thread of the stud, and the hexagonal flange portion 2 is rotated by a tool, causing the entire hub nut body 1 to rotate. Since the hub nut body 1 and the reinforcing locking sleeve 11 are connected by the limiting relationship between the inner ring 15 and the limiting ring 16 in the outer annular slot 8 and the inner annular slot 9 (the inner ring 15, the limiting ring 16, the outer annular slot 8 and the inner annular slot 9 will be introduced later), the rotation of the hub nut body 1 will not affect the reinforcing locking sleeve 11.

[0027] The straight section 17 corresponds to the arc-shaped slot 13 in position, and a pressure spring 24 is installed between the straight section 17 and the drive block 22 along the outside of the intermediate sliding post 21. The pressure spring 24 enables the reinforcing extruder 19 to maintain a certain pressure after extruding the hub.

[0028] The outer side of the tapered sleeve portion 5 has an outer annular groove 8, and the inner wall of the tapered sleeve portion 5 has an inner annular groove 9 along the inner side of the outer annular groove 8. As the hub nut body 1 moves inward along the stud, the tapered sleeve portion 5 contacts the arc-shaped surface 23 of the drive block 22. At this time, the movement of the hub nut body 1 will drive the reinforcing locking sleeve 11 to move synchronously along the outside of the stud. Utilizing the special shape of the tapered sleeve portion 5, it can accurately cooperate with the drive block 22 during the movement, realizing the synchronous movement of the reinforcing locking sleeve 11, and preparing for the subsequent compression and locking of the hub.

[0029] An annular connecting end plate 14 is integrally connected to the outer side of the outer ring portion 12. The annular connecting end plate 14 is arranged perpendicular to the axial direction of the outer ring portion 12. An inner ring portion 15 is integrally connected to the other end of the annular connecting end plate 14. The inner ring portion 15 is located inside the outer ring portion 12 and is concentrically arranged with the outer ring portion 12. The length of the inner ring portion 15 is greater than the length of the outer ring portion 12. A limiting ring portion 16 is integrally connected to the other end of the inner ring portion 15. The limiting ring portion 16 slides along the inner annular groove 9, and the inner ring portion 15 slides along the outer annular groove 8. As the hub nut body 1 moves inward along the stud, the annular connecting end plate 14 contacts the inner end face of the mounting hole of the hub. At this time, when the hub nut body 1 moves inward, the reinforcing locking sleeve 11 cannot continue to move inward. The tapered sleeve portion 5 will squeeze the driving block 22 to move outward. Through the intermediate sliding column 21, the arc-shaped extrusion plate 20 moves outward. The arc-shaped extrusion plate 20 abuts against the arc-shaped end face of the mounting hole, further pressing the hub. The design of the inner ring 15 and the limiting ring 16 sliding along the outer annular groove 8 and the inner annular groove 9 ensures that the reinforcing locking sleeve 11 can maintain a relatively stable positional relationship during the rotation and movement of the hub nut body 1, and ensures that the reinforcing extrusion member 19 can accurately extrude the hub according to the design requirements.

[0030] After the nut is installed in place, the locking washer 10 contacts the inner end face of the countersunk hole of the wheel hub. The locking action of the nut and the stud, along with the outward pressing action of the arc-shaped pressing plate 20, achieves the locking and fixing of the wheel hub. This dual locking method greatly enhances the fixing effect of the nut on the wheel hub, effectively copes with various complex situations during vehicle operation, and ensures that the wheel hub is always stably connected.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-strength hub nut, comprising a hub nut body (1), characterized in that: The hub nut body (1) includes a tapered sleeve portion (5); a reinforcing locking sleeve (11) is connected to one side of the hub nut body (1), the reinforcing locking sleeve (11) includes an outer ring portion (12), the outer surface of the outer ring portion (12) is provided with an arc-shaped slot (13) in an annular array, and a sliding hole slot (18) is provided at the center of the inner end of the arc-shaped slot (13) on the outer surface of the outer ring portion (12); a plurality of reinforcing extrusion members (19) are connected to the reinforcing locking sleeve (11), the reinforcing extrusion members (19) The ring array arrangement includes an arc extrusion plate (20) located inside the arc groove (13). The inner end of the arc extrusion plate (20) is fixed with a middle sliding column (21). The middle sliding column (21) slides along the sliding hole groove (18). The other end of the middle sliding column (21) is fixed with a driving block (22) inside the outer ring (12). The inner surface of the driving block (22) is an arc surface (23). The arc surface (23) matches the outer surface of the conical sleeve (5).

2. The high-strength hub nut according to claim 1, characterized in that: The inner surface of the outer ring (12) is fixed with a ring array of multiple straight parts (17). The straight parts (17) correspond to the arc-shaped slot (13) in the inner and outer positions. A pressure spring (24) is installed between the straight parts (17) and the drive block (22) along the outside of the middle sliding column (21).

3. The high-strength hub nut according to claim 1, characterized in that: The outer side of the conical sleeve part (5) is provided with an outer annular groove (8), and the inner wall of the conical sleeve part (5) is provided with an inner annular groove (9) along the inner side of the outer annular groove (8).

4. The high-strength hub nut of claim 3, wherein: An annular connecting end plate (14) is integrally connected to the outer side of the outer ring (12). The annular connecting end plate (14) is arranged perpendicular to the axial direction of the outer ring (12). An inner ring (15) is integrally connected to the other end of the annular connecting end plate (14). The inner ring (15) is located inside the outer ring (12) and is concentrically arranged with the outer ring (12). The length of the inner ring (15) is greater than the length of the outer ring (12). A limiting ring (16) is integrally connected to the other end of the inner ring (15). The limiting ring (16) slides along the inner annular groove (9), and the inner ring (15) slides along the outer annular groove (8).

5. The high-strength hub nut of claim 1, wherein: The hub nut body (1) also includes a hexagonal flange (2), a limiting stop (3), and a cylindrical sleeve (4). The hexagonal flange (2), the limiting stop (3), the cylindrical sleeve (4), and the conical sleeve (5) are arranged from left to right. The hexagonal flange (2), the limiting stop (3), the cylindrical sleeve (4), and the conical sleeve (5) are integrally formed. An outer ring groove (6) is provided on the outer surface of the cylindrical sleeve (4) near the limiting stop (3).

6. The high-strength hub nut of claim 5, wherein: A locking washer (10) is provided in the outer ring groove (6), and the locking washer (10) slides in the outer ring groove (6).

7. The high-strength hub nut according to claim 1, characterized in that: The inner surface of the hub nut body (1) is provided with an internal locking thread (7).

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