Heavy-duty wheel hub nut
By introducing a buffer groove and a rubber mounting cap into the heavy-duty vehicle wheel hub nut, the problems of vibration and external impact are solved, the nut's anti-loosening performance and protective ability are enhanced, and its service life is extended.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 浙江力友汽车科技有限公司
- Filing Date
- 2025-07-07
- Publication Date
- 2026-06-12
Smart Images

Figure CN224352246U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nut technology, and in particular to heavy-duty vehicle wheel hub nuts. Background Technology
[0002] Nuts are widely used in various mechanical equipment, building structures, and vehicles as essential fasteners for fixing and connecting. They are typically used in conjunction with bolts to provide a strong connection by tightening, ensuring a secure connection between components. In industries such as automotive, shipbuilding, aerospace, and construction, nuts play an indispensable role, such as securing wheels, mechanical parts, and piping systems. The function of nuts is to increase the stability of the connection by evenly distributing pressure, preventing loosening or detachment, and improving the safety and reliability of equipment.
[0003] Heavy-duty wheel nuts are fasteners specifically designed to secure the wheels of heavy-duty vehicles, typically used on trucks, construction machinery, vans, and other large transport vehicles. Their primary function is to tightly connect the wheel hub to the axle, ensuring tire stability and safe vehicle operation. Due to the weight they bear and the harshness of their operating environment, these nuts are usually made of high-strength materials, such as steel alloys, to withstand enormous torque and pressure. Heavy-duty wheel nuts also need to be corrosion-resistant to cope with harsh weather conditions and high-intensity usage environments.
[0004] However, while existing wheel nuts provide basic tightening and anti-loosening functions, they often lack effective mitigation against vibration and external impacts during long-term use. Traditional nut designs typically lack additional cushioning structures, leading to uneven pressure distribution between the nut and the wheel hub during use, increasing the risk of loosening. Furthermore, while existing anti-loosening designs effectively prevent loosening, they offer weak protection against dust and impurities. Over time, external contaminants can enter the nut's mounting area, affecting the tightening effect and consequently the nut's stability.
[0005] To address the above issues, a heavy-duty vehicle wheel hub nut is proposed as a solution. Utility Model Content
[0006] To overcome the above deficiencies, this utility model provides a heavy-duty vehicle wheel hub nut, which aims to solve the problems of existing wheel hub nuts lacking effective means to mitigate vibration and external impact, and the entry of external impurities into the nut's mounting portion, thus affecting the installation effect.
[0007] To achieve the above objectives, the present invention adopts the following technical solution: a heavy-duty vehicle wheel hub nut, comprising a nut body, a protective component installed at the end of the nut body, and an adjustment component provided inside the nut body;
[0008] The adjustment assembly includes a buffer pad, one side of which is fixedly connected to an annular washer, and two rubber rings are installed inside the annular washer.
[0009] As a further description of the above technical solution:
[0010] The nut body includes a mounting part, and an abutment part is fixedly connected to the bottom of the mounting part.
[0011] As a further description of the above technical solution:
[0012] The mounting part has internal threads.
[0013] As a further description of the above technical solution:
[0014] The abutment portion has a buffer groove that is annularly formed inside.
[0015] As a further description of the above technical solution:
[0016] The buffer pad is located inside the buffer groove, and the inner side of the buffer pad slides inside the buffer groove.
[0017] As a further description of the above technical solution:
[0018] The protective component includes a mounting cover, the interior of which has an internal hexagonal groove.
[0019] As a further description of the above technical solution:
[0020] The mounting cover is fitted onto the outside of the mounting part, and the mounting part is located inside the internal hexagonal groove.
[0021] As a further description of the above technical solution:
[0022] The mounting cover is made of corrosion-resistant rubber and is deformable under stress.
[0023] This utility model has the following beneficial effects:
[0024] 1. In this utility model, a buffer groove is designed in the abutment part inside the nut, and a buffer washer is installed in the buffer groove. The use of the buffer washer provides excellent installation effect during the nut tightening process. The buffer washer can effectively distribute the pressure applied to the nut, reduce damage to the nut and hub caused by vibration and impact, and prevent the nut from loosening due to excessive vibration or external force. To further enhance the anti-loosening effect, a rubber ring is also equipped on the buffer washer, which can provide stronger tightening force and stability, ensuring that the nut is not easily dislodged during long-term use.
[0025] 2. In this utility model, after the nut is installed, a rubber mounting cap is placed on the nut's mounting area to prevent external dust, impurities, or moisture from entering the contact area between the nut and the hub, thereby avoiding any impact on the tightening effect. The rubber material has excellent sealing properties, effectively preventing dust and moisture from entering the nut's interior, reducing corrosion and wear, and extending the nut's service life. Attached Figure Description
[0026] Figure 1 This is a three-dimensional schematic diagram of the heavy-duty automobile wheel hub nut proposed in this utility model;
[0027] Figure 2 This is a schematic diagram of the mounting cover for the heavy-duty vehicle wheel hub nut proposed in this utility model;
[0028] Figure 3 This is a schematic diagram of the annular washer for the heavy-duty automobile wheel hub nut proposed in this utility model.
[0029] Legend:
[0030] 1. Nut body; 11. Mounting part; 111. Internal thread; 12. Abutment part; 121. Buffer groove; 2. Protective component; 21. Mounting cover; 22. Internal hexagonal groove; 3. Adjusting component; 31. Buffer pad; 32. Annular washer; 33. Rubber ring. Detailed Implementation
[0031] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Reference Figure 1 - Figure 3This utility model provides an embodiment of a heavy-duty vehicle wheel hub nut, comprising a nut body 1, which is composed of multiple components, including a mounting portion 11 and an abutment portion 12. The mounting portion 11 has an internal thread 111 for fastening to a corresponding bolt or axle to ensure the stability and safety of the wheel. The abutment portion 12 is fixedly connected to the bottom of the mounting portion 11, contacting the wheel hub or other accessories to provide sufficient fixing force. To further improve the fastening effect, a buffer groove 121 is annularly formed inside the abutment portion 12. This buffer groove 121 can accommodate a buffer pad 31 and provide necessary pressure distribution during nut tightening, reducing damage from vibration and impact and preventing the nut from loosening. A protective component 2 is also installed at the end of the nut body 1. The protective component 2 covers the mounting portion 11 of the nut body 1 to prevent external contaminants such as dust, impurities, or moisture from entering the nut, avoiding negative impacts on the fastening effect and extending the service life of the nut body 1.
[0033] Reference Figure 2 - Figure 3 The adjusting component 3 includes a buffer washer 31, one side of which is fixedly connected to an annular washer 32. The annular washer 32 engages with the buffer groove 121 inside the nut body 1, providing sealing and protection. Two rubber rings 33 are installed inside the annular washer 32, which effectively provide elastic cushioning and play a crucial role when the nut is tightened. The buffer washer 31 is located inside the buffer groove 121, and its inner side can slide at a certain angle within the groove 121. This allows the buffer washer 31 to autonomously adjust its position according to changes in the tightening force of the nut body 1, thereby achieving more precise pressure distribution.
[0034] Reference Figure 2 - Figure 3 The protective component 2 includes a mounting cover 21, which is made of corrosion-resistant rubber to improve its durability and resistance to harsh environmental factors, ensuring that it is not affected by external corrosion during long-term use. The mounting cover 21 has good elasticity and deformation capacity under stress, allowing it to deform under external force to better adapt to the mounting part 11 and enhance the fastening effect. The mounting cover 21 has an internal hexagonal groove 22, which fits tightly against the outside of the nut mounting part 11, ensuring it is stably fitted onto the outside of the mounting part 11. The mounting part 11 is located inside the internal hexagonal groove 22, ensuring that the mounting cover 21 is firmly fixed to the nut body 1, preventing loosening due to external vibration or other factors.
[0035] Working Principle: When installing heavy-duty truck wheel hub nuts, the mounting portion 11 of the nut body 1 is first fastened to the axle or bolt via the internal thread 111. During the tightening process, the buffer washer 31 is located in the buffer groove 121 within the nut body 1. The inner side of the buffer washer 31 slides at a certain angle after being subjected to force to adapt to different tightening force changes. Simultaneously, the rubber ring 33 provides additional elastic cushioning, dispersing the pressure applied to the nut body 1, reducing the negative impact of vibration and impact, and preventing the nut body 1 from loosening. At the same time, the annular washer 32 further enhances the stability of the system through its sealing effect. After tightening, the mounting cap 21, through its internal hexagonal groove 22, engages with the mounting portion 11 and is fitted onto the outside of the mounting portion 11, ensuring the nut body 1 is stably fixed. The mounting cap 21 is made of corrosion-resistant rubber and can deform under external force, providing a good sealing effect, effectively preventing dust and impurities from entering the nut, thereby avoiding any impact on the tightening effect and reducing nut wear.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A heavy-duty vehicle wheel hub nut, comprising a nut body (1), characterized in that: The end of the nut body (1) is equipped with a protective component (2), and the inside of the nut body (1) is provided with an adjustment component (3). The adjustment component (3) includes a buffer pad (31), and an annular washer (32) is fixedly connected to one side of the buffer pad (31). Two rubber rings (33) are installed inside the annular washer (32).
2. The heavy-duty vehicle wheel hub nut according to claim 1, characterized in that: The nut body (1) includes a mounting part (11), and an abutment part (12) is fixedly connected to the bottom of the mounting part (11).
3. The heavy-duty vehicle wheel nut according to claim 2, characterized in that: The mounting part (11) has an internal thread (111).
4. The heavy-duty vehicle wheel hub nut according to claim 2, characterized in that: The abutment part (12) has a buffer groove (121) in the inner ring.
5. The heavy-duty vehicle wheel nut according to claim 4, characterized in that: The buffer pad (31) is located inside the buffer groove (121), and the inner side of the buffer pad (31) slides inside the buffer groove (121).
6. The heavy-duty vehicle wheel nut according to claim 2, characterized in that: The protective component (2) includes a mounting cover (21), and the interior of the mounting cover (21) has an internal hexagonal groove (22).
7. The heavy-duty vehicle wheel hub nut according to claim 6, characterized in that: The mounting cover (21) is fitted onto the outside of the mounting part (11), and the mounting part (11) is located inside the internal hexagonal groove (22).
8. The heavy-duty vehicle wheel nut according to claim 6, characterized in that: The mounting cover (21) is made of corrosion-resistant rubber material and is deformable under stress.