Automobile tensioning wheel bearing
By setting up a water barrier ring plate and an elastic plate in the car tightening wheel bearing, the problem of rust caused by rainwater entering the bearing connection is solved, and the effect of extending the service life is achieved.
Patent Information
- Application Number
- CN202422123805.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-08-30
AI Technical Summary
On rainy days, car tightening wheel bearings are prone to rainwater entering the connection of the inner ring, outer ring and steel ball, resulting in rusting and shortening the service life.
A kind of automobile tightening wheel bearing is designed, and a water barrier ring plate and an elastic plate are arranged between the outer ring and the inner ring. The elastic force of the elastic plate makes the water barrier ring plate block the drain outlet when there is no rain. When the rainwater reaches a certain weight when there is rain, the water barrier ring plate presses against the elastic plate, the drain channel opens, and the rainwater can flow out.
Effectively prevent rainwater from entering the bearing connection, reduce the risk of rust, and extend the service life of the bearing.
Smart Images
Figure CN222894506U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of bearings, and in particular to an automobile tensioner bearing. Background Art
[0002] The tensioner pulley bearing is a new type of bearing developed to simulate automobile working conditions. It is mostly installed at the front end of the automobile engine, adjacent to the engine's power engine shaft, water pump, and air-conditioning compressor. It has a small space, compact layout, high working temperature, and harsh environment. The tensioner pulley bearing needs to work in an environment of 115 to 125°C, and its operating speed is as high as 6000 to 12000r / min. Moreover, it has to undergo multiple rounds of alternating acceleration and deceleration during operation, and the speed variation range is large. The bearing has to withstand a radial load of 675N and needs to be resistant to low temperatures. It can normally run in high-cold areas at -40°C.
[0003] The automobile tensioner bearing includes an inner ring and an outer ring. The inner ring is arranged inside the outer ring. A number of steel balls are rollingly connected between the inner ring and the outer ring. The inner ring is fixed inside the outer ring through the steel balls. At present, when using the automobile tensioner bearing, it is inevitable to encounter rainy weather, and rainwater may flow into the connection between the inner ring, the outer ring and the steel column. Over a long period of time, the connection between the inner ring, the outer ring and the steel column may rust, thereby shortening the service life of the bearing. Utility Model Content
[0004] In order to extend the service life of the bearing, the present application provides an automobile tensioner bearing.
[0005] The present application provides an automobile tensioner bearing, which adopts the following technical solution:
[0006] A vehicle tensioner wheel bearing, comprising a bearing assembly and a waterproof assembly, the bearing assembly comprising an outer ring and an inner ring arranged inside the outer ring, a plurality of steel balls being arranged between the outer ring and the inner ring, the waterproof assembly comprising a pair of water retaining ring plates relatively arranged between the outer ring and the inner ring, the pair of water retaining ring plates being respectively located on both sides of the steel balls, an inner side wall of the inner ring being provided with a plug-in groove for inserting the water retaining ring plate, an outer side wall of the inner ring being provided with a drain port, the drain port being connected to the plug-in groove, an end of the water retaining ring plate close to the steel ball being provided with a spring plate, the end of the spring plate facing away from the end connected to the water retaining ring plate being connected to the outer ring, and the water retaining ring plate being disconnected from the drain port and connected to the plug-in groove by the elastic force of the spring plate.
[0007] The water retaining ring plate is provided with a pair of oppositely arranged water retaining ring plates between the outer ring and the inner ring and is respectively located on both sides of the steel ball; a plug-in groove for inserting the water retaining ring plate is provided on the inner side wall of the inner ring; a drain outlet is provided on the outer side wall of the inner ring aligned with the water retaining ring plate, and the drain outlet is connected to the plug-in groove; a spring plate is provided at one end of the water retaining ring plate close to the steel ball, and the end of the spring plate facing away from the water retaining ring plate is connected to the outer ring; the water retaining ring plate is disconnected and connected to the drain outlet from the plug-in groove under the elastic force of the spring plate, so that when there is no rain, the water retaining ring plate can block the drain outlet under the elastic force of the spring plate; when there is rain, when the rainwater on the water retaining ring plate reaches a certain weight, the spring plate is subjected to the pressure of the rainwater, and the water retaining ring plate is pressed toward the spring plate. At this time, the water retaining ring plate no longer blocks the drain outlet, and rainwater can flow out through the drain outlet, so that rainwater is not easy to flow into the connection between the inner ring, the outer ring and the steel ball to cause rust, thereby extending the service life of the bearing.
[0008] Optionally, the inner ring is provided with a clamping groove at the outer side wall of the water retaining ring plate, and the water retaining ring plate is correspondingly provided with a clamping ball that cooperates with the clamping groove for clamping, and the clamping ball is spherical.
[0009] By adopting the above technical scheme, a clamping groove is provided on the outer side wall of the inner ring aligned with the water retaining ring plate, and a clamping ball matched with the clamping groove for clamping is correspondingly provided on the water retaining ring plate, and the clamping ball is spherical, so that the water retaining ring plate can be connected to the inner ring through the clamping ball and the clamping groove, and the spherical clamping ball is conducive to the clamping ball being able to rotate in the clamping groove, so that it is not easy to affect the water retaining ring plate to squeeze the spring plate or be bounced up by the spring plate.
[0010] Optionally, a guide ring groove is provided on one end surface of the water retaining ring plate facing away from the elastic plate, and a guide groove is provided on a side wall of the water retaining ring plate facing the drain port, and the guide groove is communicated with the guide ring groove.
[0011] By adopting the above technical scheme, a guide ring groove is provided on the end face of the water retaining ring plate facing away from the spring plate, and a guide groove is provided on the side wall of the water retaining ring plate facing the drain outlet, and the guide groove is connected with the backflow ring groove, so that rainwater can flow into the guide groove through the guide ring groove and flow out of the drain outlet.
[0012] Optionally, a first inclined surface is provided at the bottom of the guide ring groove, and the first inclined surface is inclined from an end away from the guide groove toward an end close to the guide groove.
[0013] By adopting the above technical solution, a first inclined surface is provided at the bottom of the guide ring groove, and the first inclined surface is inclined from an end away from the guide groove toward an end close to the guide groove, which is conducive to rainwater flowing into the guide groove along the first inclined surface.
[0014] Optionally, a second inclined surface is provided at the bottom of the guide groove, and the second inclined surface is inclined from an end close to the first inclined surface toward an end away from the first inclined surface.
[0015] By adopting the above technical solution, a second inclined surface is provided at the bottom of the guide groove, and the second inclined surface is inclined from an end close to the first inclined surface toward an end away from the first inclined surface, which is conducive to rainwater flowing along the second inclined surface to the drain outlet.
[0016] Optionally, a third inclined surface is provided on a side wall of the drain outlet away from the ejection direction of the spring plate, and the third inclined surface is inclined from an end close to the water retaining ring plate toward an end away from the water retaining ring plate.
[0017] By adopting the above technical solution, a third inclined surface is provided on the side wall of the drain outlet away from the pop-up direction of the spring plate. The third inclined surface is inclined from the end close to the water retaining ring plate toward the end away from the water retaining ring plate, which is conducive to the discharge of rainwater through the drain outlet.
[0018] Optionally, an embedding groove is provided at a groove wall where the plug-in groove is connected to the spring plate, and one end of the spring plate connected to the plug-in groove is arranged in the embedding groove.
[0019] By adopting the above technical solution, an embedded groove is provided at the groove wall where the plug-in groove and the spring plate are connected, and one end of the spring plate connected to the plug-in groove is provided in the embedded groove, which is beneficial for the drain outlet to no longer be blocked by the water retaining ring plate when the water retaining ring plate squeezes the spring plate.
[0020] Optionally, the water retaining ring plate is made of rubber.
[0021] By adopting the above technical solution, the water retaining ring plate is made of rubber material, so that the water retaining ring plate can improve the sealing performance of the bearing.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] 1. A pair of oppositely arranged water retaining ring plates are arranged between the outer ring and the inner ring and are respectively located on both sides of the steel ball. A plug-in groove for inserting the water retaining ring plate is arranged at the inner side wall of the inner ring, and a drain port is arranged at the outer side wall of the inner ring aligned with the water retaining ring plate, and the drain port is connected to the plug-in groove. A spring plate is arranged at one end of the water retaining ring plate close to the steel ball, and the end of the spring plate away from the water retaining ring plate is connected to the outer ring. The water retaining ring plate disconnects and connects the drain port with the plug-in groove under the elastic force of the spring plate, so that when there is no rain, the water retaining ring plate can block the drain port under the elastic force of the spring plate. When there is rain, when the rainwater on the water retaining ring plate reaches a certain weight, the spring plate is subjected to the pressure of the rainwater, and the water retaining ring plate is pressed against the spring plate. At this time, the water retaining ring plate no longer blocks the drain port, and rainwater can flow out through the drain port, so that rainwater is not easy to flow into the connection between the inner ring, the outer ring and the steel ball to cause rust, thereby extending the service life of the bearing;
[0024] 2. A clamping groove is arranged at the outer wall of the inner ring aligned with the water retaining ring plate, and a clamping ball is correspondingly arranged at the water retaining ring plate to be clamped with the clamping groove, and the clamping ball is spherical, so that the water retaining ring plate can be connected to the inner ring through the clamping ball and the clamping groove, and the spherical clamping ball is conducive to the clamping ball being able to rotate in the clamping groove, so that it is not easy to affect the water retaining ring plate to squeeze the spring plate or be bounced up by the spring plate;
[0025] 3. A guide ring groove is provided at one end face of the water retaining ring plate away from the spring plate, and a guide groove is provided at one side wall of the water retaining ring plate facing the drain outlet, and the guide groove is connected with the backflow ring groove, so that rainwater can flow into the guide groove through the guide ring groove and flow out of the drain outlet. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a structural diagram of the overall structure in the embodiment of the present application.
[0027] Figure 2 is a cross-sectional view of a bearing assembly in an embodiment of the present application.
[0028] Figure 3 It is a schematic diagram of the exploded structure of the waterproof component in the embodiment of the present application.
[0029] Figure 4 It is a cross-sectional view of the overall structure in an embodiment of the present application.
[0030] Figure 5 yes Figure 4 Schematic diagram of the structure of part A in the middle.
[0031] Explanation of the reference numerals: 1. bearing assembly; 11. outer ring; 111. first rolling ring groove; 112. plug-in groove; 1121. embedded groove; 113. drain outlet; 1131. third inclined surface; 12. inner ring; 121. second rolling ring groove; 122. snap-in groove; 13. steel ball; 2. waterproof assembly; 21. water retaining ring plate; 211. snap-in ring; 212. guide ring groove; 2121. first inclined surface; 213. guide groove; 2131. second inclined surface; 22. spring plate. DETAILED DESCRIPTION
[0032] The following is combined with Figure 1-5 This application is described in further detail.
[0033] The present application embodiment discloses an automobile tensioner bearing. Figure 1 An automobile tensioner bearing comprises a bearing assembly 1 and a waterproof assembly 2. The waterproof assembly 2 is connected to the bearing assembly 1, so that the bearing assembly 1 has good waterproof performance under the action of the waterproof assembly 2, thereby extending the service life of the bearing.
[0034] Reference Figure 1 and Figure 2 The bearing assembly 1 includes an outer ring 11, an inner ring 12 and a plurality of steel balls 13. The inner ring 12 is arranged inside the outer ring 11. A first rolling ring groove 111 is opened on the inner side wall of the outer ring 11, and a second rolling ring groove 121 is opened on the outer side wall of the inner ring 12. The plurality of steel balls 13 are placed between the outer ring 11 and the inner ring 12 and are located between the first rolling ring groove 111 and the second rolling ring groove 121.
[0035] Reference Figure 3 and Figure 4 The waterproof component 2 includes a pair of water retaining ring plates 21 and a pair of spring plates 22 made of rubber material. The pair of water retaining ring plates 21 are respectively arranged between the outer ring 11 and the inner ring 12, and the pair of water retaining ring plates 21 are respectively placed on both sides of the steel ball 13. A pair of water retaining ring plates 21 are respectively placed on both sides of the steel ball 13, which are the upper side and the lower side of the steel ball 13 respectively. A pair of spring plates 22 are respectively arranged on one end surface of the pair of water retaining ring plates 21 close to the steel ball 13. Since the structure of the pair of water retaining ring plates 21 and the pair of spring plates 22 connected to the inner ring 12 and the outer ring 11 is consistent, in this embodiment, the water retaining ring plates 21 and the spring plates 22 located on the upper side of the steel ball 13 are described as an example.
[0036] Reference Figure 2 and Figure 4In order to fix the water retaining ring plate 21 between the outer ring 11 and the inner ring 12, a clamping groove 122 is opened on the outer wall of the inner ring 12, and a clamping ball 211 is integrally formed on the inner wall of the water retaining ring plate 21. The clamping ball 211 is used to be clamped in the clamping groove 122, and the clamping ball 211 is spherical. An insertion groove 112 is opened on the inner wall of the outer ring 11, and the end of the water retaining ring plate 21 away from the integrally formed clamping ball 211 is inserted into the insertion groove 112, and a gap is left between the water retaining ring plate 21 and the insertion groove 112.
[0037] Reference Figure 3 and Figure 4 A guide ring groove 212 is provided on one end face of the water retaining ring plate 21 which is away from the steel ball 13. The end face of the water retaining ring plate 21 with the guide ring groove 212 is set as the upper end face of the water retaining ring plate 21. A guide groove 213 is provided on an outer side wall of the water retaining ring plate 21. The guide groove 213 is connected with the guide ring groove 212. The side wall of the water retaining ring plate 21 with the guide groove 213 is set as the left side wall of the water retaining ring plate 21.
[0038] Reference Figure 4 and Figure 5 A first inclined surface 2121 is integrally formed at the bottom of the guide ring groove 212, and the first inclined surface 2121 is inclined downward from the right side of the guide ring groove 212 to the left side of the guide ring groove 212, and the position where the first inclined surface 2121 is connected to the guide groove 213 is the lowest point of the first inclined surface 2121, and a second inclined surface 2131 is integrally formed at the bottom of the guide groove 213, and the second inclined surface 2131 is inclined downward from the right side of the guide groove 213 to the left side of the guide groove 213, and the position where the second inclined surface 2131 is connected to the guide ring groove 212 is the highest point of the first inclined surface 2121.
[0039] Reference Figure 2 and Figure 5, an embedding groove 1121 is opened at the lower end groove wall of the plug-in groove 112, and the embedding groove 1121 is opened in alignment with the guide groove 213. The lower end surface of the spring plate 22 is welded to the groove bottom of the embedding groove 1121, and the upper end of the spring plate 22 abuts against the lower end surface of the water retaining ring plate 21. When the spring plate 22 bounces up the water retaining ring plate 21, the outer ring 11 is aligned with the outer side wall of the water retaining ring plate 21 to open a drain port 113. At this time, the drain port 113 is blocked by the water retaining ring plate 21. When rainwater flows into the second inclined surface 2131 along the first inclined surface 2121, the water retaining ring plate 2 Under the gravity of rainwater, the spring plate 22 is squeezed, so that the guide groove 213 moves toward the spring plate 22. At this time, the drain port 113 is slowly connected with the plug-in groove 112. In order for rainwater to flow out along the drain port 113, a third inclined surface 1131 is integrally formed at the groove wall at the lower end of the drain port 113. The third inclined surface 1131 is inclined downward from an end close to the water retaining ring plate 21 to an end away from the water retaining ring plate 21, and the end of the third inclined surface 1131 close to the water retaining ring plate 21 is the highest point of the third inclined surface 1131.
[0040] The implementation principle of an automobile tensioner bearing in an embodiment of the present application is as follows: when it rains, rainwater falls on the guide ring groove 212 and moves along the first inclined surface 2121 toward the direction of the guide groove 213. When the rainwater flows into the guide groove 213, the water retaining ring plate 21 is squeezed toward the spring plate 22 under the action of the gravity of the rainwater, so that the water retaining ring plate 21 no longer blocks the drain outlet 113, and the rainwater flows out toward the drain outlet 113 along the second inclined surface 2131. After the rainwater is drained, the guide groove 213 is no longer affected by the gravity of the rainwater, and the water retaining ring plate 21 rebounds to its original position under the action of the spring plate 22.
[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. An automobile tensioner bearing, characterized in that: The invention comprises a bearing assembly (1) and a waterproof assembly (2), wherein the bearing assembly (1) comprises an outer ring (11) and an inner ring (12) arranged inside the outer ring (11), a plurality of steel balls (13) are arranged between the outer ring (11) and the inner ring (12), and the waterproof assembly (2) comprises a pair of water retaining ring plates (21) arranged relatively between the outer ring (11) and the inner ring (12), the pair of water retaining ring plates (21) are respectively located on both sides of the steel balls (13), and an inserting groove (13) for inserting the water retaining ring plates (21) is provided on the inner side wall of the inner ring (12). 12), the inner ring (12) is provided with a drain port (113) at the outer side wall aligned with the water retaining ring plate (21), the drain port (113) is communicated with the plug-in groove (112), the water retaining ring plate (21) is provided with a spring plate (22) at one end close to the steel ball (13), the spring plate (22) is connected to the outer ring (11) at one end away from the end connected with the water retaining ring plate (21), and the water retaining ring plate (21) is disconnected from the drain port (113) and connected with the plug-in groove (112) by the elastic force of the spring plate (22).
2. The automobile tensioner bearing according to claim 1, characterized in that: The inner ring (12) is provided with a clamping groove (122) at the outer side wall of the water retaining ring plate (21), and the water retaining ring plate (21) is correspondingly provided with a clamping sphere (211) that cooperates with the clamping groove (122) for clamping, and the clamping sphere (211) is spherical.
3. The automobile tensioner bearing according to claim 1, characterized in that: A guide ring groove (212) is provided on one end surface of the water retaining ring plate (21) facing away from the spring plate (22), and a guide groove (213) is provided on a side wall of the water retaining ring plate (21) facing the drain port (113), and the guide groove (213) is communicated with the guide ring groove (212).
4. The automobile tensioner bearing according to claim 3, characterized in that: A first inclined surface (2121) is provided at the bottom of the guide ring groove (212), and the first inclined surface (2121) is inclined from an end away from the guide groove (213) toward an end close to the guide groove (213).
5. The automobile tensioner bearing according to claim 4, characterized in that: A second inclined surface (2131) is provided at the bottom of the guide groove (213), and the second inclined surface (2131) is inclined from an end close to the first inclined surface (2121) toward an end away from the first inclined surface (2121).
6. The automobile tensioner bearing according to claim 5, characterized in that: A third inclined surface (1131) is provided on a side wall of the water discharge port (113) away from the ejection direction of the spring plate (22), and the third inclined surface (1131) is inclined from an end close to the water retaining ring plate (21) toward an end away from the water retaining ring plate (21).
7. The automobile tensioner bearing according to claim 6, characterized in that: An embedding groove (1121) is provided at the groove wall where the plug-in groove (112) and the spring plate (22) are connected, and one end of the spring plate (22) connected to the plug-in groove (112) is arranged in the embedding groove (1121).
8. The automobile tensioner bearing according to claim 6, characterized in that: The water retaining ring plate (21) is made of rubber.