Suspension bearing
The suspension bearings with labyrinth seals and reinforcement rib design solve the problems of lightweight and insufficient lateral support of suspension bearings on large vehicles, realize a high-performance suspension system, and improve the vehicle's handling and fuel economy.
Patent Information
- Application Number
- CN202520017893.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-04
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2035-01-04
AI Technical Summary
Existing suspension bearings are difficult to achieve lightweighting and space saving in large vehicles without sacrificing performance, and they provide insufficient lateral support, resulting in poor handling and fuel economy.
A suspension bearing is designed with a labyrinth seal structure and reinforcing ribs. Grease is filled in the labyrinth seal and combined with an annular lock design to enhance the sealing performance and lateral support capacity while reducing material consumption.
It achieves lightweight and space-saving suspension bearings without reducing sealing and load-bearing performance, improves overall rigidity and reliability, extends service life and reduces operating noise.
Smart Images
Figure CN223447487U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of bearings, in particular to a suspension bearing. BACKGROUND
[0002] As a classic independent front suspension system widely used in modern cars, the MacPherson suspension has the advantages of lightweight and small space occupation, significantly improving the handling and fuel economy of the vehicle. However, due to its inherent structural limitations, the MacPherson suspension performs poorly in lateral support, especially when turning, it is prone to significant roll phenomenon, and when braking, it also has a heavy nodding effect. Therefore, for large vehicles, designers need to pay special attention to how to balance lightweight, space limitations, rigidity requirements, and handling performance by optimizing and enhancing the suspension system.
[0003] To solve the above problems, existing technical means usually take multiple measures to improve the performance of the MacPherson suspension. For example, some designs will increase additional support structures to improve lateral stability, or improve the design of the bearing to improve overall reliability and sealing performance. In addition, some methods add grease inside the bearing to extend the service life, while using special materials and processes to reduce weight and ensure strength. These conventional means can solve the problem to some extent, but often cannot fully meet the requirements of large vehicles for high-performance suspensions.
[0004] Although the above methods solve some problems to some extent, there are still some deficiencies. Specifically, most of the suspension bearings in the prior art fail to achieve lightweight and space saving without sacrificing performance. Especially in the application of large vehicles, the traditional design scheme often fails to balance the requirements of lightweight, high sealing performance and strong lateral support, resulting in unsatisfactory actual use effect. Therefore, it is necessary to propose a new suspension bearing design to overcome these problems in the prior art. CONTENT OF THE INVENTION
[0005] In view of the complex requirements of MacPherson suspension in large vehicles, the present application provides a suspension bearing, which only retains the most effective structure of the product, has the advantages of lightweight and space saving without sacrificing performance.
[0006] The suspension bearing provided by the present application adopts the following technical scheme:
[0007] A suspension bearing, comprising a first bearing cover, a second bearing cover, a raceway ring, rolling elements and a retainer,
[0008] The first bearing cover and the second bearing cover form a mounting interval, and the raceway ring, the rolling elements and the retainer are located in the mounting interval,
[0009] a labyrinth seal between the outer periphery of the first bearing cover and the outer periphery of the second bearing cover, and a labyrinth seal between the inner periphery of the first bearing cover and the inner periphery of the second bearing cover.
[0010] By adopting the above technical scheme, the suspension bearing realizes lightweight design and space saving design without reducing the sealing and bearing performance. Meanwhile, the double labyrinth seal design between the inner and outer peripheries improves the overall reliability and safety, and ensures stable operation of the suspension system.
[0011] Preferably, the first bearing cover comprises a first ring plate and a first axial rib,
[0012] The first axial rib is annular, the first axial rib is coaxially connected to the first ring plate, and the first axial rib is coaxially provided with a plurality of,
[0013] The second bearing cover comprises a second ring plate and a second axial rib,
[0014] The second axial rib is annular, the second axial rib is coaxially connected to the second ring plate, and the second axial rib is coaxially provided with a plurality of,
[0015] At least one of the second axial ribs is used for being inserted between two first axial ribs, and / or at least one of the first axial ribs is used for being inserted between two second axial ribs.
[0016] By adopting the above technical scheme, the axial ribs not only increase the structural strength, but also form a labyrinth seal, effectively improving the sealing performance of the product. The multi-layer design of the axial ribs enables the product to reduce the amount of material while maintaining high strength, thereby realizing lightweight.
[0017] Preferably, the first bearing cover comprises a first ring plate and a first lock ring,
[0018] The first lock ring is coaxially connected to the first ring plate,
[0019] The second bearing cover comprises a second ring plate and a second lock ring,
[0020] The second lock ring is coaxially connected to the second ring plate,
[0021] The inner periphery and / or the outer periphery of the first lock ring is provided with a lock groove, the second lock ring is embedded in the lock groove, and the groove wall of the lock groove is used for abutting against the surface of the second lock ring away from the first ring plate.
[0022] By adopting the above technical scheme, the second lock ring is embedded in the lock groove, preventing the two bearing covers from being separated and forming a labyrinth seal.
[0023] Preferably, the first lock ring is provided with a first guide surface, and the second lock ring is provided with a second guide surface,
[0024] The first guide surface is used for the second guide surface to slide and fit.
[0025] By adopting the above technical scheme, the two guide surfaces guide the second locking ring to be embedded into the locking groove, so that the first bearing cover and the second bearing cover can be smoothly butted during assembly.
[0026] Preferably, the inner circumferential surface of the first locking ring is provided with first assembly ribs at intervals.
[0027] By adopting the above technical scheme, the structural stability is increased to prevent loosening or misplacement during use. The protruding rib structure reduces the material and provides support.
[0028] Preferably, the end surface of the second bearing cover away from the first bearing cover is provided with second assembly ribs at intervals in the circumferential direction.
[0029] By adopting the above technical scheme, the lateral support capability is effectively improved, so as to enhance the overall rigidity and stability of the suspension bearing.
[0030] Preferably, the end surface of the first bearing cover away from the second bearing cover is provided with a weight-reducing groove,
[0031] The weight-reducing groove is provided with first reinforcing ribs at intervals.
[0032] By adopting the above technical scheme, the weight-reducing groove effectively reduces the material amount of the first bearing cover, realizes lightweight design, helps to reduce the overall vehicle quality and improve fuel economy. At the same time, the first reinforcing ribs in the weight-reducing groove enhance the structural strength, improve the lateral support capability, and ensure the stability and reliability of the suspension bearing under high load.
[0033] Preferably, the labyrinth seal is filled with lubricating grease.
[0034] By adopting the above technical scheme, the labyrinth seal is filled with lubricating grease, which can significantly improve the sealing performance of the bearing, effectively prevent external impurities from entering the inside, and prolong the service life of the bearing. At the same time, the existence of the lubricating grease can also reduce the friction between the rolling elements and the raceway, reduce the running noise, and improve the NVH (Noise, Vibration and Harshness) performance of the vehicle.
[0035] In summary, the present application includes at least one of the following beneficial technical effects:
[0036] 1. Without reducing the sealing and bearing performance of the product, lightweight and space-saving effects are realized. By optimizing the structural design of the first bearing cover and the second bearing cover, the material amount is reduced and the lateral support capability is improved;
[0037] 2. The product's sealing performance is improved, and the service life is extended. By filling the grease at the labyrinth seal between the first bearing cover and the second bearing cover, external impurities are effectively prevented from entering, ensuring stable operation for a long time;
[0038] 3. The overall rigidity and reliability of the suspension system are enhanced. The annular locking design of the first bearing cover and the second bearing cover not only enhances the sealing performance, but also effectively prevents the separation of the bearing cover, improving the anti-vibration ability and stability of the entire suspension system. BRIEF DESCRIPTION OF DRAWINGS
[0039] Figure 1 is a schematic view of a suspension bearing, mainly used to show the first bearing cover.
[0040] Figure 2 is Figure 1 a sectional view at A-A in
[0041] Figure 3 is a schematic view of a suspension bearing, mainly used to show the second bearing cover.
[0042] Figure 4 is a schematic view of a suspension bearing in use.
[0043] BRIEF DESCRIPTION OF DRAWINGS: 1, first bearing cover; 11, first ring plate; 12, first axial rib; 13, first locking ring; 131, locking groove; 132, first guide surface; 14, first assembly rib; 151, weight reduction groove; 152, first reinforcing rib; 16, weight reduction ring groove; 17, first inner mounting rib; 2, second bearing cover; 21, second ring plate; 22, second axial rib; 23, second locking ring; 231, second guide surface; 24, second assembly rib; 25, mounting ring; 26, second inner mounting rib; 3, raceway ring; 4, rolling element; 5, retainer. DETAILED DESCRIPTION
[0044] The present application will be further described in detail below in conjunction with the accompanying drawings.
[0045] The MacPherson suspension needs to balance the problems of lightweight, space limitation, rigidity demand, and handling performance when applied to large vehicles. Therefore, the present application mainly uses a suspension bearing, which achieves the effects of lightweight, space saving, and improved sealing performance by reasonably designing the structure of each component.
[0046] Referring to Figure 1 and Figure 2 , the present application discloses a suspension bearing, which comprises a first bearing cover 1, a second bearing cover 2, a raceway ring 3, a rolling element 4, and a retainer 5.
[0047] The mounting interval is formed between the first bearing cover 1 and the second bearing cover 2, and the raceway ring 3, the rolling body 4 and the retainer 5 are located in the mounting interval.
[0048] Specifically, the raceway ring 3 is provided with two. The two raceway rings 3 are coaxial, and the end face of one raceway ring 3 is attached to the first bearing cover 1, and the end face of the other raceway ring 3 is attached to the second bearing cover 2. The rolling body 4 and the retainer 5 are located between the two raceway rings 3.
[0049] The outer peripheral edge of the first bearing cover 1 and the outer peripheral edge of the second bearing cover 2 are labyrinth sealed.
[0050] Specifically, the first bearing cover 1 includes a first ring plate 11 and a first axial rib 12.
[0051] The first axial rib 12 is annular, the first axial rib 12 is coaxially connected to the first ring plate 11, and the first axial rib 12 is coaxially provided with a plurality of. The radii of the plurality of first axial ribs 12 are different.
[0052] The second bearing cover 2 includes a second ring plate 21 and a second axial rib 22.
[0053] The second axial rib 22 is annular, the second axial rib 22 is coaxially connected to the second ring plate 21, and the second axial rib 22 is coaxially provided with a plurality of. The radii of the plurality of second axial ribs 22 are different.
[0054] At least one second axial rib 22 is used for inserting between two first axial ribs 12, and / or at least one first axial rib 12 is used for inserting between two second axial ribs 22.
[0055] The first bearing cover 1 and the second bearing cover 2 are coaxially connected to each other. Figure 2 Specifically, the first axial rib 12 and the second axial rib 22 are each provided with two. One first axial rib 12 is used for inserting between two second axial ribs 22, and one second axial rib 22 is used for inserting between two first axial ribs 12 to achieve labyrinth sealing.
[0056] The inner peripheral edge of the first bearing cover 1 and the inner peripheral edge of the second bearing cover 2 are labyrinth sealed.
[0057] Specifically, the first bearing cover 1 further includes a first lock ring 13, and the second bearing cover 2 further includes a second lock ring 23.
[0058] The first lock ring 13 is coaxially connected to the first ring plate 11, and the second lock ring 23 is coaxially connected to the second ring plate 21.
[0059] The inner peripheral surface and / or the outer peripheral surface of the first lock ring 13 is provided with a lock groove 131, and the second lock ring 23 is used for embedding in the lock groove 131, and the groove wall of the lock groove 131 is used for abutting against the surface of the second lock ring 23 away from the first ring plate 11.
[0060] The first bearing cover 1 and the second bearing cover 2 are coaxially connected to each other.Figure 2 In the embodiment, the outer diameter of the first locking ring 13 is larger than the inner diameter of the second locking ring 23, and the locking groove 131 is located at the inner circumference of the first locking ring 13. At the same time, a first guide surface 132 is provided on the outer circumference of the first locking ring 13, and a second guide surface 231 is provided on the outer circumference of the second locking ring 23.
[0061] The first guide surface 132 is used for sliding engagement with the second guide surface 231 to guide the second locking ring 23 to be embedded in the locking groove 131 , thereby preventing the two bearing covers from separating and forming a labyrinth seal.
[0062] Both labyrinth seals are filled with grease.
[0063] First assembly ribs 14 are provided on the inner circumferential surface of the first locking ring 13 at equal intervals along the circumferential direction.
[0064] Along the axial direction of the first bearing cover 1 , the thickness of the first assembly rib 14 is smaller than the thickness of the first locking ring 13 .
[0065] The end surface of the first bearing cap 1 facing away from the second bearing cap 2 is coaxially provided with an annular weight-reducing groove 151, which can reduce the weight of the product, make the wall thickness uniform, and facilitate processing. In addition, first reinforcing ribs 152 are evenly spaced in the weight-reducing groove 151.
[0066] At the same time, a weight-reducing annular groove 16 may be coaxially provided on the end surface of the first bearing cap 1 facing away from the second bearing cap 2 , and the weight-reducing annular groove 16 passes through the outer circumferential surface of the first ring plate 11 .
[0067] Reference Figure 2 and Figure 3 Second assembly ribs 24 are provided at equal intervals in the circumferential direction on the end surface of the second bearing cover 2 facing away from the first bearing cover 1 .
[0068] Specifically, the second bearing cover 2 further includes a mounting ring 25 , which is coaxially connected to the end face of the second ring plate 21 facing away from the first ring plate 11 ; the second assembly rib 24 is located on the outer circumference of the mounting ring 25 and the end face of the second ring plate 21 .
[0069] Reference Figure 2 A second inner mounting rib 26 is provided between the second ring plate 21 and the second axial rib 22 . A first inner mounting rib 17 is provided between the first ring plate 11 and the first lock ring 13 .
[0070] Reference Figure 4 The first ring plate 11 is mainly used to support the vehicle body; the inner periphery of the lock ring and the end face of the first ring plate 11 are mainly used for bearing positioning; the second bearing cover 2 is mainly used to cooperate with the bearing seat.
[0071] The implementation principle of the suspension bearing provided in the embodiment of the present application is as follows: by reasonably designing various structures of the first bearing cover 1 and the second bearing cover 2, especially by introducing the labyrinth seal and the reinforcing rib, the suspension bearing realizes the lightweight and space saving targets without sacrificing the sealing performance and the carrying capacity. This not only helps to improve the handling and fuel economy of the vehicle, but also prolongs the service life of the bearing and reduces the maintenance cost. At the same time, the design of the labyrinth seal can effectively prevent external pollutants from entering the bearing, ensure the long-term stable operation of the bearing, and improve the reliability and safety of the overall system.
[0072] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.
Claims
1. A suspension bearing, characterized in that: It comprises a first bearing cover (1), a second bearing cover (2), a raceway ring (3), a rolling element (4) and a retaining frame (5), An installation interval is formed between the first bearing cover (1) and the second bearing cover (2), and the raceway ring (3), the rolling element (4) and the retaining frame (5) are all located within the installation interval. A labyrinth seal is formed between the outer peripheral edge of the first bearing cover (1) and the outer peripheral edge of the second bearing cover (2), and a labyrinth seal is formed between the inner peripheral edge of the first bearing cover (1) and the inner peripheral edge of the second bearing cover (2).
2. The suspension bearing according to claim 1, characterized in that The first bearing cover (1) comprises a first ring plate (11) and a first axial rib (12), The first axial rib (12) is annular, and the first axial rib (12) is coaxially connected to the first ring plate (11). A plurality of the first axial ribs (12) are coaxially provided. The second bearing cover (2) comprises a second ring plate (21) and a second axial rib (22), The second axial rib (22) is annular, and the second axial rib (22) is coaxially connected to the second ring plate (21). The second axial rib (22) is coaxially provided with a plurality of At least one of the second axial ribs (22) is used to be inserted between two first axial ribs (12), and / or at least one of the first axial ribs (12) is used to be inserted between two second axial ribs (22).
3. The suspension bearing according to claim 1, characterized in that The first bearing cover (1) comprises a first ring plate (11) and a first locking ring (13), The first locking ring (13) is coaxially connected to the first ring plate (11). The second bearing cover (2) comprises a second ring plate (21) and a second locking ring (23). The second locking ring (23) is coaxially connected to the second ring plate (21). A locking groove (131) is provided on the inner circumference and / or outer circumference of the first locking ring (13), the second locking ring (23) is used to be embedded in the locking groove (131), and the groove wall of the locking groove (131) is used to abut against the surface of the second locking ring (23) facing away from the first ring plate (11).
4. The suspension bearing according to claim 3, characterized in that The first locking ring (13) is provided with a first guide surface (132), and the second locking ring (23) is provided with a second guide surface (231). The first guide surface (132) is used for sliding contact with the second guide surface (231).
5. The suspension bearing according to claim 3, characterized in that First assembly ribs (14) are provided at intervals on the inner circumferential surface of the first locking ring (13).
6. The suspension bearing according to claim 1 or 3, characterized in that: Second assembly ribs (24) are provided at circumferential intervals on the end surface of the second bearing cover (2) facing away from the first bearing cover (1).
7. The suspension bearing according to claim 1, characterized in that The end surface of the first bearing cover (1) facing away from the second bearing cover (2) is provided with a weight-reducing groove (151). First reinforcing ribs (152) are provided at intervals in the weight-reducing grooves (151).
8. The suspension bearing according to claim 1, characterized in that The labyrinth seal is filled with grease.