Anti-loose axle connecting bolt assembly

Abstract

The utility model relates to axle connecting technology field and disclose a kind of anti-loose axle connecting bolt assembly, including mounting plate, the one end of mounting plate is provided with axle wheel edge, the side of mounting plate is fixed with six connecting columns, the connecting column is distributed in circle with mounting plate as pivot. This anti-loose axle connecting bolt assembly, by setting six connecting columns distributed in circle with mounting plate as pivot, the force structure of symmetrical balance is constructed, can evenly disperse the load transmitted by axle wheel edge, avoid the deformation or fatigue damage caused by local stress concentration, lay the foundation stability of connection, the firm block of fastening bolt end portion can limit fastening bolt rotation, cooperate with the close thread cooperation of nut, directly resist the loosening risk caused by vibration, and the gasket on the surface of fastening bolt can play buffering protection effect when nut is tightened, reduce wear and tear and increase contact area, further optimize stress uniformity.

Description

Technical Field

[0001] This utility model relates to the field of vehicle axle connection technology, and in particular to an anti-loosening vehicle axle connection bolt assembly. Background Technology

[0002] Axle connection technology refers to the technical field involving the connection between the axle and the body or other components of vehicles such as automobiles, trucks, and tractors. The axle is an important component of a vehicle, bearing the weight of the vehicle and transmitting the driving force of the wheels to the vehicle body, while also withstanding various loads and impacts from the road surface. In the field of axle connection technology, the reliability of the connection between the axle wheel edge and the mounting plate is directly related to the safety and stability of vehicle operation.

[0003] Regarding existing related technologies, the inventors believe that the following defects often exist: In existing axle connection bolt assemblies, the bolts are prone to loosening due to vibration during vehicle operation, which leads to a decrease in the stability of the connection and even safety hazards. Secondly, the structure of existing bolt assemblies often cannot effectively distribute the load, which easily leads to local stress concentration, resulting in deformation or fatigue damage of the connection. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing axle connection bolt assembly is prone to loosening due to vibration when the vehicle is in motion and cannot effectively distribute the load. Therefore, we propose an anti-loosening axle connection bolt assembly.

[0005] To achieve the above objectives, this application adopts the following technical solution: an anti-loosening axle connecting bolt assembly, including a mounting plate, one end of which is provided with an axle wheel edge, six connecting posts fixed on one side of the mounting plate, the connecting posts being circumferentially distributed around the mounting plate as the axis, fastening bolts being threaded into the internal threads of the connecting posts, a stabilizing block being fixed to the end of the fastening bolt near the mounting plate, a nut being threaded into the end of the fastening bolt near the axle wheel edge, and a pad being fitted onto the surface of the fastening bolt.

[0006] Preferably, the top of the connecting column is provided with an anti-loosening washer, and the inside of the anti-loosening washer is fitted onto the surface of the fastening bolt.

[0007] Preferably, one end of the anti-loosening washer is provided with a metal film, and the other end of the metal film is in close contact with the fastening bolt.

[0008] Preferably, one end of the fastening bolt has a fastening groove.

[0009] Preferably, one end of the nut has a groove, and a rubber ring is fixed inside the groove.

[0010] Preferably, a spring washer is fitted on the surface of the fastening bolt, and the spring washer is located on one side of the nut.

[0011] Preferably, the nut and the pad have the same cross-sectional shape.

[0012] The technical effects and advantages of this utility model are as follows: In this invention, by setting six connecting columns circumferentially distributed around the mounting plate, a symmetrical and balanced force-bearing structure is constructed. This can evenly distribute the load transmitted by the wheel edge of the axle, avoid deformation or fatigue damage caused by local stress concentration, and lay the foundation for connection stability. The stabilizing block at the end of the fastening bolt can restrict the rotation of the fastening bolt. Combined with the tight thread fit with the nut, it directly resists the risk of loosening caused by vibration. The pad on the surface of the fastening bolt can play a buffering and protective role when the nut is tightened, reducing wear and increasing the contact area, further optimizing the uniformity of force distribution. Attached Figure Description

[0013] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts: Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the axle wheel edge and connecting column structure of this utility model; Figure 3 This is a schematic diagram of the bolt structure of this utility model; Figure 4 This is a schematic diagram of the nut structure of this utility model.

[0014] Legend: 1. Mounting plate; 2. Axle wheel edge; 3. Connecting post; 4. Fastening bolt; 5. Stabilizing block; 6. Nut; 7. Spacer; 8. Anti-loosening washer; 9. Metal film; 10. Fastening groove; 11. Groove; 12. Rubber ring; 13. Spring washer. Detailed Implementation

[0015] Based on the technical solution of this utility model, without changing the essential spirit of this utility model, those skilled in the art can propose various interchangeable structural methods and implementation methods. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model, and should not be regarded as the entirety of this utility model or as a limitation or restriction of the technical solution of this utility model.

[0016] Reference Figures 1-4As shown, this utility model provides a technical solution: an anti-loosening axle connecting bolt assembly, including a mounting plate 1, an axle wheel edge 2 at one end of the mounting plate 1, six connecting posts 3 fixed on one side of the mounting plate 1, the connecting posts 3 being circumferentially distributed around the mounting plate 1 as the axis, fastening bolts 4 being threaded inside the connecting posts 3, a stabilizing block 5 being fixed at the end of the fastening bolt 4 near the mounting plate 1, a nut 6 being threadedly connected at the end of the fastening bolt 4 near the axle wheel edge 2, a pad 7 being sleeved on the surface of the fastening bolt 4, an anti-loosening washer 8 being provided at the top of the connecting posts 3, the inside of the anti-loosening washer 8 being sleeved with the surface of the fastening bolt 4, a spring washer 13 being sleeved on the surface of the fastening bolt 4, the spring washer 13 being located on one side of the nut 6, and the nut 6 and the pad 7 having the same cross-sectional shape.

[0017] Specifically: By setting up a structure with six connecting columns 3, a symmetrical and balanced force-bearing structure is formed. Furthermore, the circumferentially distributed connecting columns 3 can evenly distribute the load transmitted from the axle wheel edge 2 to various areas of the mounting plate 1, avoiding deformation or fatigue damage at the connection points caused by localized stress concentration. This structural layout ensures the basic stability of the connection. The stabilizing block 5, to a certain extent, restricts the rotation of the fastening bolt 4, enhancing its resistance to loosening. Simultaneously, a nut 6 is threaded onto the end of the fastening bolt 4 near the axle wheel edge 2. The tight fit between the fastening bolt 4 and the nut 6 further locks the connection, preventing bolt loosening due to vibrations during vehicle operation and ensuring the robustness of the axle connection. The use of spacers 7 further... The structure acts as a buffer and protector during the tightening of nut 6, preventing wear from direct contact and extending the service life of nut 6. In addition, nut 6 increases the contact area, making the force more even and further improving the stability of the connection. By setting the cross-sectional shape of nut 6 and washer 7 to be the same, nut 6 and washer 7 can better cooperate during installation and disassembly, making the operation more convenient and quick. At the same time, it also helps to ensure the concentricity of nut 6 and washer 7 after installation, further improving the stability and reliability of the connection. The anti-loosening washer 8 itself has elastic deformation characteristics, and can continuously generate axial elastic force after the fastening bolt 4 is tightened, offsetting the preload reduction of fastening bolt 4 caused by vibration or temperature changes, and always maintaining the tight fit of the threaded mating surfaces.

[0018] Reference Figure 3 and Figure 4 As shown in this embodiment: a metal film 9 is provided at one end of the anti-loosening washer 8, and the other end of the metal film 9 is in close contact with the fastening bolt 4. A fastening groove 10 is provided at one end of the fastening bolt 4, and a groove 11 is provided at one end of the nut 6. A rubber ring 12 is fixed inside the groove 11.

[0019] Specifically: By setting the material of the metal film 9, the part of the metal film 9 that is in close contact with the fastening bolt 4 is made of a special material with a high coefficient of friction and wear resistance, which can effectively prevent the fastening bolt 4 from loosening due to vibration during vehicle operation. Through the structure of the fastening groove 10, the fastening bolt 4 can be tightened by external force, improving the fixing effect of the mounting plate 1 and the axle wheel edge 2. By setting the structure of the rubber ring 12, the rubber ring 12 has good elasticity. When the nut 6 is tightened, the rubber ring 12 can fit tightly against the surface of the connecting parts, forming a good sealing effect, effectively preventing dust, moisture and other impurities from entering the connection part of the nut 6, thereby reducing the corrosion and loosening of the nut 6 caused by impurities, and improving durability. By setting the structure of the spring washer 13, the spring washer 13 can generate a certain elastic deformation during the tightening of the nut 6, providing a continuous preload force for the nut 6. Even when affected by factors such as vibration during vehicle operation, the spring washer 13 can prevent the nut 6 from loosening, further enhancing the fastening effect.

[0020] Working principle: The user positions and aligns the mounting plate 1 with the axle wheel edge 2. Then, using six circumferentially distributed connecting posts 3 as the initial connection base, the user screws the fastening bolt 4 into the connecting posts 3. During the screwing process, the stabilizing block 5 provides positioning and initial anti-rotation, preventing the bolt 4 from rotating freely. Once the end of the fastening bolt 4 closest to the axle wheel edge 2 is screwed into the appropriate position, the nut 6 is threaded onto the other end of the fastening bolt 4. At this point, the washer 7 is placed on the surface of the fastening bolt 4 and located on one side of the nut 6, providing cushioning and increasing the contact area, acting as an anti-loosening washer. The anti-loosening washer 8 is fitted on the surface of the fastening bolt 4, and its interior fits with the fastening bolt 4. The metal film 9 at one end of the anti-loosening washer 8 is in close contact with the fastening bolt 4. It uses its special material's high coefficient of friction and wear resistance to prevent the fastening bolt 4 from loosening. The user can use the fastening groove 10 at one end of the fastening bolt 4 to further tighten the fastening bolt 4 with tools. When the nut 6 is tightened, the rubber ring 12 fits tightly against the surface of the connecting parts to form a seal. The spring washer 13 is fitted on the surface of the fastening bolt 4 and generates elastic deformation during the tightening of the nut 6, providing continuous preload to the nut 6 and preventing it from loosening.

[0021] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A bolt assembly for preventing loosening of a vehicle axle connecting bolts, comprising a mounting plate (1), characterized in that: One end of the mounting plate (1) is provided with a vehicle axle wheel edge (2). Six connecting posts (3) are fixed on one side of the mounting plate (1). The connecting posts (3) are distributed in a circle around the mounting plate (1) as the axis. The internal threads of the connecting posts (3) are connected to fastening bolts (4). The end of the fastening bolt (4) near the mounting plate (1) is fixed with a stabilizing block (5). The end of the fastening bolt (4) near the vehicle axle wheel edge (2) is connected with a nut (6). The surface of the fastening bolt (4) is fitted with a pad (7).

2. The anti-loosening axle connecting bolt assembly according to claim 1, characterized in that: The top of the connecting column (3) is provided with an anti-loosening washer (8), and the inside of the anti-loosening washer (8) is fitted with the surface of the fastening bolt (4).

3. The anti-loosening axle connecting bolt assembly according to claim 2, characterized in that: One end of the anti-loosening washer (8) is provided with a metal film (9), and the other end of the metal film (9) is in close contact with the fastening bolt (4).

4. The anti-loosening axle connection bolt assembly according to claim 1, characterized in that: One end of the fastening bolt (4) is provided with a fastening groove (10).

5. The anti-loosening axle connection bolt assembly according to claim 1, characterized in that: One end of the nut (6) has a groove (11), and a rubber ring (12) is fixed inside the groove (11).

6. The anti-loosening axle connection bolt assembly according to claim 1, characterized in that: The fastening bolt (4) is fitted with a spring washer (13), which is located on one side of the nut (6).

7. The anti-loosening axle connecting bolt assembly according to claim 1, characterized in that: The nut (6) and the pad (7) have the same cross-sectional shape.

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