Stamping angular contact sealed ball bearing for automobile steering device

Abstract

The utility model belongs to the field of automobile steering devices, particularly relates to a stamping angular contact sealing ball bearing for an automobile steering device, and aims to solve the problems that the sealing effect of an existing product needs to be improved, and oil is inconvenient to inject into the product for maintenance, the stamping angular contact sealing ball bearing comprises an outer ring and an inner ring, and a retainer is arranged between the outer ring and the inner ring. A plurality of balls are arranged in the retainer, an elastic inner ring is arranged on the circumferential inner wall of the inner ring, a disc spring is installed on one side of the elastic inner ring, a first clamping groove is formed in the circumference of the outer wall of the elastic inner ring, and a second sealing ring is arranged in the first clamping groove. The inner portion of the outer ring can be sealed when the outer ring moves, impurities are prevented from entering the bearing, the service life of a product is prolonged, meanwhile, the oil injection core is pressed downwards, the oil outlet hole can be communicated with the communicating hole, lubricating oil is injected between the outer ring and the inner ring, meanwhile, the oil injection core can reset automatically, and people can use the bearing conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive steering gears, in particular to a stamping angular contact sealed ball bearing for an automotive steering gear. Background Technique

[0002] The pressed angular contact sealed ball bearing is a special type of bearing, belonging to the ball bearing in rolling bearings. It can bear radial load and axial load simultaneously and can work at a relatively high speed. The larger the contact angle, the higher the axial load-bearing capacity. It is a high-performance bearing and is suitable for application scenarios that need to bear axial and radial loads simultaneously, especially performing well in occasions that require high precision and high reliability.

[0003] The pressed angular contact sealed ball bearing can be used in the steering gear of an automobile. During the use of the traditional pressed angular contact sealed ball bearing, there are still the following problems: the sealing effect needs to be improved, and at the same time, it is not convenient to inject oil for maintenance into it. Therefore, a stamping angular contact sealed ball bearing for an automotive steering gear is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages that the sealing effect needs to be improved and it is not convenient to inject oil for maintenance into the interior in the prior art, and to propose a stamping angular contact sealed ball bearing for an automotive steering gear.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A stamping angular contact sealed ball bearing for an automotive steering gear includes an outer ring and an inner ring. A cage is arranged between the outer ring and the inner ring, and a plurality of balls are arranged in the cage. An elastic inner ring is arranged on the circumferential inner wall of the inner ring, and a disc spring is installed on one side of the elastic inner ring. A first card slot is opened on the outer circumferential wall of the elastic inner ring, and a second sealing ring is arranged in the first card slot. The cross-section of the second sealing ring is n-shaped, and one end of the second sealing ring contacts the outer ring;

[0007] An annular second card slot is opened on the circumferential inner wall of the outer ring, and a first sealing ring is arranged in the second card slot. An annular convex portion is arranged on the circumference of the first sealing ring, and the convex portion is located in the second card slot. The circumferential inner wall of the first sealing ring contacts the circumference of the disc spring.

[0008] As a further scheme of the utility model, an installation hole is arranged on the circumference of the second sealing ring, a limiting shell is fixedly connected in the installation hole, an oil injection core is slidably connected in the limiting shell, a T-shaped oil outlet hole is opened in the oil injection core, a plurality of communication holes are opened on the circumference of the limiting shell, the communication holes are used in cooperation with the oil outlet hole, and an elastic member is arranged between the bottom of the oil injection core and the bottom inner wall of the limiting shell.

[0009] As a further solution of the present utility model, the elastic member is a spring, the bottom of the spring contacts the inner wall of the bottom of the limit shell, and the top of the spring contacts the bottom of the oil injection core.

[0010] As a further solution of the present utility model, one end of the second sealing ring is integrally formed with a plurality of contact cone rings, and the contact cone rings contact the outer circumferential outer wall.

[0011] As a further solution of the present utility model, both the first sealing ring and the second sealing ring are made of rubber.

[0012] In this application, the balls are installed in the cage, the cage is arranged between the outer ring and the inner ring, the elastic inner ring is arranged inside the inner ring, the second sealing ring is sleeved on the circumference of the elastic inner ring, and one end of the second sealing ring contacts the outer ring. During use, the second sealing ring is used to seal between the elastic inner ring and the outer ring to prevent impurities from entering the inside of the outer ring and the inner ring, avoiding affecting the use of the balls. During the movement of the outer ring, it slides with the contact cone rings to maintain the sealing effect. At the same time, the first sealing ring cooperates with the disc spring to seal the other end, further enhancing the sealing effect. When injecting oil, the oil injection core is pressed down to connect the oil outlet hole with the communication hole, and then the lubricating oil is injected between the outer ring and the inner ring. After stopping oil injection, the oil injection core resets under the action of the spring, thus avoiding oil leakage.

[0013] Beneficial effects:

[0014] In the present utility model, for the stamping angular contact sealed ball bearing for an automotive steering gear, through the combined use of the first sealing ring and the second sealing ring, during the use of the bearing, it can maintain the sealing of its interior when the outer ring moves, preventing impurities from entering the bearing interior and improving the service life of the product;

[0015] In the present utility model, for the stamping angular contact sealed ball bearing for an automotive steering gear, through the combined use of the limit shell and the oil injection core, pressing down the oil injection core can connect the oil outlet hole with the communication hole, and then inject the lubricating oil between the outer ring and the inner ring. At the same time, the oil injection core can automatically reset, facilitating the use of people;

[0016] In the present utility model, during the use of the bearing, it can maintain the sealing of its interior when the outer ring moves, preventing impurities from entering the bearing interior and improving the service life of the product. At the same time, pressing down the oil injection core can connect the oil outlet hole with the communication hole, and then inject the lubricating oil between the outer ring and the inner ring. At the same time, the oil injection core can automatically reset, facilitating the use of people. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic cross-sectional structure view of a stamping angular contact sealed ball bearing for an automotive steering gear proposed by the present utility model;

[0018] Figure 2 This is a partial structural schematic diagram of a stamping angular contact sealed ball bearing for an automotive steering gear proposed by the present utility model;

[0019] Figure 3 This is an enlarged structural schematic diagram of point A of a stamping angular contact sealed ball bearing for an automotive steering gear proposed by the present utility model.

[0020] In the figure: 1, outer ring; 2, inner ring; 3, disc spring; 4, ball; 5, first sealing ring; 6, convex part; 7, cage; 8, second sealing ring; 9, elastic inner ring; 10, limit shell; 11, oil injection core; 12, oil outlet hole; 13, communication hole; 14, spring; 15, contact cone ring. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0022] Embodiment 1

[0023] Referring to Figures 1-3 , a stamping angular contact sealed ball bearing includes: an outer ring 1 and an inner ring 2. A cage 7 is arranged between the outer ring 1 and the inner ring 2. A plurality of balls 4 are arranged in the cage 7. The balls 4 support the outer ring 1 and the inner ring 2. An elastic inner ring 9 is arranged on the circumferential inner wall of the inner ring 2. A disc spring 3 is installed on one side of the elastic inner ring 9. The disc spring 3 is used to maintain the tightness of the assembly between components and prevent the problem of assembly errors. A first card slot is formed on the outer circumferential wall of the elastic inner ring 9. A second sealing ring 8 is arranged in the first card slot. The cross section of the second sealing ring 8 is n-shaped. One end of the second sealing ring 8 contacts the outer ring 1. The second sealing ring 8 seals between the elastic inner ring 9 and the outer ring 1 to prevent dust and impurities from entering the interior of the bearing;

[0024] An annular second card slot is formed on the circumferential inner wall of the outer ring 1. A first sealing ring 5 is arranged in the second card slot. An annular convex part 6 is arranged on the circumference of the first sealing ring 5. The convex part 6 is located in the second card slot. The circumferential inner wall of the first sealing ring 5 contacts the circumference of the disc spring 3. The first sealing ring 5 cooperates with the disc spring 3 to seal the other end, further increasing the sealing effect.

[0025] This application can be used in the field of automotive steering gears and can also be used in other fields applicable to this application.

[0026] Embodiment 2

[0027] Referring to Figures 1-3, on the basis of Embodiment 1, an improved stamping angular contact sealed ball bearing is provided, which is applied to the field of automotive steering gears.

[0028] In the present utility model, mounting holes are provided on the circumference of the second sealing ring 8. A limiting shell 10 is fixedly connected in the mounting holes. An oil injection core 11 is slidably connected in the limiting shell 10. A T-shaped oil outlet hole 12 is formed in the oil injection core 11. A plurality of communication holes 13 are formed in the circumference of the limiting shell 10. The communication holes 13 are used in cooperation with the oil outlet hole 12. An elastic member is provided between the bottom of the oil injection core 11 and the inner wall of the bottom of the limiting shell 10. By pressing down the oil injection core 11, the oil outlet hole 12 is communicated with the communication holes 13, and then lubricating oil is injected between the outer ring 1 and the inner ring 2, which is convenient for people to use.

[0029] In particular, the elastic member is a spring 14. The bottom of the spring 14 contacts the inner wall of the bottom of the limiting shell 10, and the top of the spring 14 contacts the bottom of the oil injection core 11. After stopping oil injection, the oil injection core 11 resets under the action of the spring 14, thereby avoiding oil leakage.

[0030] It should be noted that a plurality of contact cone rings 15 are integrally formed at one end of the second sealing ring 8. The contact cone rings 15 contact the outer circumferential wall of the outer ring 1. The contact cone rings 15 reduce the friction between the second sealing ring 8 and the outer ring 1.

[0031] In the present utility model, both the first sealing ring 5 and the second sealing ring 8 are made of rubber.

[0032] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A stamped angular contact sealed ball bearing for automobile steering gear, characterized in that: The invention comprises an outer ring (1) and an inner ring (2), wherein a retaining frame (7) is arranged between the outer ring (1) and the inner ring (2), a plurality of balls (4) are arranged in the retaining frame (7), an elastic inner ring (9) is arranged on the circumferential inner wall of the inner ring (2), a disc spring (3) is installed on one side of the elastic inner ring (9), a first groove is opened on the circumference of the outer wall of the elastic inner ring (9), a second sealing ring (8) is arranged in the first groove, the cross section of the second sealing ring (8) is n-shaped, and one end of the second sealing ring (8) is in contact with the outer ring (1); The circumferential inner wall of the outer ring (1) is provided with an annular second groove, a first sealing ring (5) is arranged in the second groove, an annular protrusion (6) is arranged on the circumference of the first sealing ring (5), the protrusion (6) is located in the second groove, and the circumferential inner wall of the first sealing ring (5) contacts the circumference of the disc spring (3).

2. The stamped angular contact sealed ball bearing for automobile steering gear according to claim 1, characterized in that: The circumference of the second sealing ring (8) is provided with a mounting hole, a limiting shell (10) is fixedly connected in the mounting hole, an oil injection core (11) is slidably connected in the limiting shell (10), a T-shaped oil outlet hole (12) is provided in the oil injection core (11), a plurality of connecting holes (13) are provided on the circumference of the limiting shell (10), the connecting holes (13) are used in conjunction with the oil outlet holes (12), and an elastic member is provided between the bottom of the oil injection core (11) and the bottom inner wall of the limiting shell (10).

3. The stamped angular contact sealed ball bearing for automobile steering gear according to claim 2, characterized in that: The elastic member is a spring (14), the bottom of the spring (14) contacts the bottom inner wall of the limiting shell (10), and the top of the spring (14) contacts the bottom of the oil injection core (11).

4. The stamped angular contact sealed ball bearing for automobile steering gear according to claim 2, characterized in that: One end of the second sealing ring (8) is integrally formed with a plurality of contact cone rings (15), and the contact cone rings (15) are in contact with the circumferential outer wall of the outer ring (1).

5. The stamped angular contact sealed ball bearing for automobile steering gear according to claim 1, characterized in that: The first sealing ring (5) and the second sealing ring (8) are both made of rubber.

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