Anti-loosening locking structure of axle flange plate

By setting clamping and abutting structures on the flange and using bolts and compression studs to achieve multi-point fixing, the problem of loosening of the axle flange under vibration and impact is solved, and the stability and safety of the connection are improved.

CN223839703UActive Publication Date: 2026-01-27航科汽车(镇江)有限公司
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Patent Information

Application Number
CN202520829159.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-28
Publication Date
2026-01-27
Estimated Expiration
2035-04-28

AI Technical Summary

Technical Problem

Axle flanges are prone to loosening under vibration and impact, leading to connection failure and posing a safety hazard.

Method used

A clamping structure is set on one side of the flange to clamp and fix the drive end of the axle, and a clamping structure is set on the other side to externally support and clamp the wheel hub. Multi-point fixation is achieved by bolts and compression studs.

Benefits of technology

It improves the connection stability between the flange and the axle and wheel hub, prevents loosening, and enhances driving safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223839703U_ABST
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Abstract

The utility model discloses an axle flange plate anti-loosening locking structure which comprises a flange plate body connected with an axle and a hub through bolts, one side of the flange plate body is provided with a hub connecting part for clamping the hub, and the other side of the flange plate body is provided with a driving connecting part for clamping the driving end of the axle. A plurality of abutting structures are evenly arranged on the outer wall of the hub connecting part to abut against and reinforce the hub inner ring, and a plurality of clamping structures are evenly arranged on the inner wall of the driving connecting part to clamp and fix the axle driving end. The clamping structure is arranged on one side of the flange plate, so that the flange plate can clamp and fix a connecting part mounted on the driving end face of the axle, the flange plate and the driving end of the axle are locked, and meanwhile the abutting structure matched with the flange plate is arranged on the other side of the flange plate. And the hub mounted on the flange plate can be externally supported and propped, so that the connection between the hub and the flange plate is locked and reinforced.
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Description

Technical Field

[0001] This utility model relates to the field of vehicle component application technology, and in particular to a locking structure for preventing loosening of axle flanges. Background Technology

[0002] Axle flanges are important components in vehicle transmission systems, used to connect axles and wheel hubs, and their stability directly affects vehicle driving safety.

[0003] In existing technology, axle flanges are typically connected to wheel hubs and drive shafts via bolts. However, during vehicle operation, especially under complex road conditions, frequent vibrations and impacts can occur. After prolonged use, the bolts can loosen, leading to connection failure between the flange and the wheel hub or drive shaft. This can result in flange detachment, abnormal wheel wobbling, and in severe cases, even safety accidents. Therefore, this invention proposes an anti-loosening locking structure for axle flanges. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a locking structure for preventing loosening of axle flanges. By providing a clamping structure on one side of the flange, it can clamp and fix the connection part installed on the drive end face of the axle, thereby locking the flange and the drive end of the axle. At the same time, a mating structure is provided on the other side of the flange, which can externally support and abut against the wheel hub installed on the flange, thereby locking and reinforcing the connection between the wheel hub and the flange.

[0005] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: providing an anti-loosening locking structure for an axle flange, including a flange body that bolts to connect the axle and the wheel hub, a wheel hub connection part that clamps the wheel hub on one side of the flange body, and a drive connection part that clamps the drive end of the axle on the other side.

[0006] The outer wall of the wheel hub connection is uniformly provided with multiple abutment structures to abut and reinforce the inner ring of the wheel hub, and the inner wall of the drive connection is uniformly provided with multiple clamping structures to clamp and fix the drive end of the axle.

[0007] The present invention is further configured such that: multiple fixing bolt holes and connecting bolt holes are evenly provided at the middle positions of both sides of the flange body, the multiple fixing bolt holes and connecting bolt holes are distributed alternately, and the connecting bolt holes have a grooved surface located on one side of the hub connection part.

[0008] The above technical solution facilitates the use of multiple connecting bolt holes to install the flange body onto the axle drive end face using bolts, and the use of multiple fixing bolt holes facilitates the connection to the bolts on the axle drive end, making it convenient to install and fix the wheel hub.

[0009] The present invention is further configured such that: the clamping structure includes an adaptation groove formed on the outer wall of the hub connection part, a clamping block is fixedly connected in the adaptation groove, and a compression threaded hole is formed on the opposite side of the clamping block and the adaptation groove, and a compression stud is threadedly connected to the inner wall of the compression threaded hole.

[0010] By rotating the extrusion stud, it moves within the extrusion threaded hole, thereby extruding the abutment block on one side and causing its outer wall to bulge outward, thus achieving the extrusion and fixation of the inner wall of the hub.

[0011] The present invention is further configured such that: the connection between the abutting block and the adapting groove is arc-shaped, and the outer wall of the abutting block is arc-shaped; at the same time, the outer arc wall of the abutting block and the outer arc wall of the hub connection part are of equal diameter; and multiple anti-slip strips are uniformly fixedly connected to the outer wall of the abutting block.

[0012] Through the above technical solution, the arc-shaped connection between the clamping block and the adapting groove allows the extrusion stud to deflect to a certain extent when it extrudes the clamping block. Then, the anti-slip strip can be used to press and clamp the inner wall of the connected wheel hub, thereby further strengthening the connection of the wheel hub.

[0013] The present invention is further configured such that: the clamping structure includes an installation groove opened at the position of the drive connection part near the inner wall, a limit bolt is provided with the midpoint of the outer arc wall of the installation groove as the center, and the limit bolt passes through the entire flange body, and a clamping block is installed inside the installation groove by the installation bolt, one side of the clamping block abuts against the outer wall of the limit bolt, and the other side abuts against the outer wall of the axle drive end.

[0014] The above technical solution utilizes the rotation of the limiting bolt to compress the clamping block installed inside the mounting groove, allowing it to move along the mounting bolt via the movable groove. Under the action of the mounting groove, stable translation is achieved, ultimately enabling multiple cooperating clamping blocks to clamp and fix the outer wall of the axle drive end.

[0015] The present invention is further configured such that: the clamping block is provided with movable grooves at both ends so that the clamping block can move on the mounting bolt through the movable grooves to clamp the outer wall of the axle drive end during the rotation and clamping of the limiting bolt.

[0016] The above technical solution utilizes a movable groove to facilitate movement of the clamping block on the mounting bolts when it is being clamped, thereby achieving the effect of clamping against the outer wall of the axle drive end and increasing the stability of the connection.

[0017] The present invention is further configured such that the side wall of the clamping block is arc-shaped and has multiple anti-slip grooves evenly distributed.

[0018] The above technical solution utilizes the anti-slip grooves to ensure that the clamping blocks are tightly pressed against the outer wall of the axle drive end, thereby improving the stability of the connection.

[0019] The beneficial effects of this utility model are as follows:

[0020] 1. The axle flange anti-loosening locking structure proposed in this utility model has a clamping structure on one side of the flange, which can clamp and fix the connection part installed on the axle drive end face, thereby locking the flange and the axle drive end.

[0021] 2. The axle flange anti-loosening locking structure proposed in this utility model has a mating structure on the other side of the flange, which can externally support and tighten the wheel hub installed on the flange, thereby locking and reinforcing the connection between the wheel hub and the flange. Attached Figure Description

[0022] Figure 1 This is a first structural diagram of an anti-loosening locking structure for axle flange according to this utility model;

[0023] Figure 2 This is a second structural diagram of an anti-loosening locking structure for axle flange according to this utility model;

[0024] Figure 3 This is a first exploded view of an anti-loosening locking structure for axle flange according to this utility model;

[0025] Figure 4 This is a second exploded view of an anti-loosening locking structure for axle flange according to this utility model;

[0026] Figure 5 for Figure 3 Enlarged view of point A in the middle;

[0027] Figure 6 for Figure 4 Enlarged view of point B in the middle.

[0028] In the diagram: 1. Flange body; 11. Fixing bolt hole; 12. Connecting bolt hole; 2. Hub connection; 21. Adaptation groove; 22. Clamping block; 221. Anti-slip strip; 23. Extrusion threaded hole; 24. Extrusion stud; 3. Drive connection; 31. Mounting groove; 32. Limit bolt; 33. Mounting bolt; 34. Clamping block; 341. Anti-slip groove; 35. Movable groove. Detailed Implementation

[0029] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0030] like Figure 1 and Figure 2 As shown, an anti-loosening locking structure for an axle flange includes a flange body 1 that bolts to the axle and wheel hub. Multiple fixing bolt holes 11 and connecting bolt holes 12 are evenly distributed at the center of both sides of the flange body 1. These fixing bolt holes 11 and connecting bolt holes 12 are arranged alternately, and the connecting bolt holes 12 have a grooved surface located on one side of the wheel hub connection portion 2. This facilitates the use of bolts to install the flange body 1 onto the axle drive end face using the multiple connecting bolt holes 12, and the multiple fixing bolt holes 11 facilitate the connection to the bolts on the axle drive end, thus facilitating the installation and fixing of the wheel hub.

[0031] like Figure 3 and Figure 5 As shown, a hub connection part 2 for clamping the hub is provided on one side of the flange body 1. Multiple clamping structures are evenly arranged on the outer wall of the hub connection part 2 to clamp and reinforce the inner ring of the hub. Each clamping structure includes an adaptation groove 21 formed on the outer wall of the hub connection part 2. A clamping block 22 is fixedly connected within the adaptation groove 21. The connection between the clamping block 22 and the adaptation groove 21 is arc-shaped, and the outer wall of the clamping block 22 is also arc-shaped. Furthermore, the outer arc wall of the clamping block 22 and the outer arc wall of the hub connection part 2 are of equal diameter. Multiple anti-slip strips 221 are evenly fixedly connected to the outer wall of the clamping block 22. The clamping block 22 and the adaptation groove 21 are used to clamp and reinforce the inner ring of the hub. The arc-shaped connection of the groove 21 allows the extrusion stud 24 to deflect to a certain extent when it extrudes the clamping block 22. This, combined with the anti-slip strip 221, allows for further compression and clamping of the inner wall of the connected hub, thereby strengthening the connection to the hub. The clamping block 22 and the opposite side of the groove 21 are provided with an extrusion threaded hole 23, and the inner wall of the extrusion threaded hole 23 is threaded with an extrusion stud 24. Rotating the extrusion stud 24 causes it to move threadedly inside the extrusion threaded hole 23, thereby extruding the clamping block 22 on one side and causing its outer wall to bulge outward, thus achieving compression and fixation of the inner wall of the hub.

[0032] like Figure 4 and Figure 6As shown, a drive connection part 3 for clamping the axle drive end is provided on the other side of the flange body 1. Multiple clamping structures are evenly arranged on the inner wall of the drive connection part 3 to clamp and fix the axle drive end. The clamping structure includes a mounting groove 31 located near the inner wall of the drive connection part 3. A limit bolt 32 is provided with the midpoint of the outer arc wall of the mounting groove 31 as the center, and the limit bolt 32 penetrates the entire flange body 1. A clamping block 34 is installed inside the mounting groove 31 via a mounting bolt 33. One side of the clamping block 34 abuts against the outer wall of the limit bolt 32, and the other side abuts against the outer wall of the axle drive end. The rotation of the limit bolt 32 causes it to press against the clamping block 34 installed inside the mounting groove 31, allowing it to move along the mounting bolt 33 via a movable groove 35. Under the action of 1, stable translation is achieved, and finally, multiple cooperating clamping blocks 34 clamp and fix the outer wall of the axle drive end. The clamping blocks 34 are provided with movable grooves 35 near both ends so that the clamping blocks 34 can move on the mounting bolts 33 through the movable grooves 35 to clamp the outer wall of the axle drive end when the limit bolts 32 rotate and abut. The movable grooves 35 make it easy for the clamping blocks 34 to move on the mounting bolts 33 when abutting, thereby achieving the effect of abutting the outer wall of the axle drive end and increasing the stability of the connection. The side wall of the clamping block 34 is arc-shaped and is provided with multiple anti-slip grooves 341 evenly. The anti-slip grooves 341 can make the clamping blocks 34 abut tightly against the outer wall of the axle drive end, improving the firmness of the connection.

[0033] In use, the flange body 1 is first fitted onto the bolt post on the drive end face of the axle using the fixing bolt hole 11, and then fixed with bolts through the connecting bolt hole 12. A limiting bolt 32 is then inserted, and its rotation causes it to press against the clamping block 34 installed inside the mounting groove 31. This causes the clamping block 34 to move along the mounting bolt 33 via the movable groove 35, achieving stable translation under the action of the mounting groove 31. Finally, multiple cooperating clamping blocks 34 clamp and fix the outer wall of the drive end of the axle. Next, the wheel hub is installed on the bolt post corresponding to the fixing bolt hole 11 and fixed with a nut. Finally, the pressing stud 24 is rotated, causing it to move threadedly inside the pressing thread hole 23, thereby pressing against the abutment block 22 on one side, causing its outer wall to bulge outwards, thus achieving the pressing and fixing of the inner wall of the wheel hub.

[0034] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A locking structure for preventing loosening of an axle flange, comprising a flange body (1) for bolting the axle and wheel hub, characterized in that: The flange body (1) has a hub connection part (2) for clamping the hub on one side and a drive connection part (3) for clamping the axle drive end on the other side. The outer wall of the hub connection part (2) is uniformly provided with multiple abutting structures to abut and reinforce the inner ring of the hub, and the inner wall of the drive connection part (3) is uniformly provided with multiple clamping structures to clamp and fix the drive end of the axle.

2. The anti-loosening locking structure for axle flange according to claim 1, characterized in that: Multiple fixing bolt holes (11) and connecting bolt holes (12) are evenly provided on the middle of both sides of the flange body (1). The multiple fixing bolt holes (11) and connecting bolt holes (12) are distributed alternately, and the connecting bolt holes (12) have a grooved surface located on one side of the hub connection part (2).

3. The anti-loosening locking structure for axle flange according to claim 1, characterized in that: The clamping structure includes an adaptation groove (21) opened on the outer wall of the hub connection part (2), a clamping block (22) is fixedly connected in the adaptation groove (21), and a pressing thread hole (23) is opened on the opposite side of the clamping block (22) and the adaptation groove (21), and a pressing stud (24) is threadedly connected to the inner wall of the pressing thread hole (23).

4. The axle flange anti-loosening locking structure according to claim 3, characterized in that: The connection between the abutting block (22) and the adaptation groove (21) is arc-shaped, and the outer wall of the abutting block (22) is arc-shaped. At the same time, the outer arc wall of the abutting block (22) and the outer arc wall of the hub connection part (2) are of equal diameter. Multiple anti-slip strips (221) are evenly fixedly connected to the outer wall of the abutting block (22).

5. The anti-loosening locking structure for axle flange according to claim 1, characterized in that: The clamping structure includes a mounting groove (31) located near the inner wall of the drive connection part (3). A limiting bolt (32) is provided with the midpoint of the outer arc wall of the mounting groove (31) as the center, and the limiting bolt (32) passes through the entire flange body (1). A clamping block (34) is installed inside the mounting groove (31) by mounting bolts (33). One side of the clamping block (34) abuts against the outer wall of the limiting bolt (32), and the other side abuts against the outer wall of the axle drive end.

6. The axle flange anti-loosening locking structure according to claim 5, characterized in that: The clamping block (34) has movable grooves (35) near both ends so that the clamping block (34) can move on the mounting bolt (33) through the movable grooves (35) to clamp the outer wall of the axle drive end while the limiting bolt (32) rotates and abuts.

7. The axle flange anti-loosening locking structure according to claim 6, characterized in that: The sidewall of the clamping block (34) is arc-shaped and has multiple anti-slip grooves (341) evenly distributed.