Bearing for automobile gearbox

Abstract

The utility model discloses a bearing for an automobile gearbox, which comprises an outer ring and an inner ring, the inner ring is rotatably connected in the outer ring, rolling bodies and a retainer are arranged between the outer ring and the inner ring, and the retainer is used for fixing the rolling bodies between the outer ring and the inner ring, so that the rolling bodies are uniformly distributed between the outer ring and the inner ring; a sealing structure is formed on the end face of the retainer, a concave structure matched with the sealing structure is formed on one side of the bearing, the sealing structure is matched with the concave structure to be used for achieving sealing on one side of the bearing, the sealing structure is formed on the end face of the retainer, and compared with a traditional independent sealing plate, the bearing has better sealing performance.

Description

Technical Field

[0001] The utility model relates to a bearing for an automobile gearbox. Background Art

[0002] A deep groove ball bearing is a rolling bearing widely used in automobiles. As described in the patent document of Chinese Patent Publication No. CN214499773U, a deep groove ball bearing can bear radial load or combined load of radial and axial forces acting simultaneously.

[0003] Existing deep groove ball bearings require independent sealing plates to be provided on both sides to seal the space between the outer ring and the inner ring. In actual applications, the independently provided sealing plates often have poor sealing effects. Utility Model Content

[0004] The utility model aims to provide a technical solution for a bearing for an automobile gearbox in view of the deficiencies in the prior art. The sealing structure is formed on the end face of the retaining frame, and the integrated sealing structure has better sealing performance than the traditional sealing plate.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] Bearings for automotive gearboxes, including

[0007] An outer ring and an inner ring, the inner ring is rotatably connected to the outer ring;

[0008] Rolling elements, used to transfer load and reduce friction between the outer ring and the inner ring;

[0009] The cage is used to fix the rolling elements between the outer ring and the inner ring so that the rolling elements are evenly distributed between the outer ring and the inner ring;

[0010] A sealing structure is formed on the end surface of the retaining frame, and a recessed structure adapted to the sealing structure is formed on one side of the bearing. The sealing structure and the recessed structure cooperate to achieve sealing on one side of the bearing.

[0011] By adopting the above technical solution, the sealing structure formed on the end face of the retaining frame can cooperate with the recessed structure on one side of the bearing to seal the space between the outer ring and the inner ring. The sealing structure is formed on the end face of the retaining frame, and has better sealing performance than the traditional independent sealing plate.

[0012] Furthermore, the cross section formed by the sealing structure of the retaining frame and its end surface is T-shaped.

[0013] Furthermore, the retaining frame and the sealing structure of its end surface are integrally formed.

[0014] Furthermore, the retaining frame is made of glass fiber reinforced plastic.

[0015] Furthermore, a retaining groove is provided on the surface of the outer ring.

[0016] Furthermore, a slope is formed on one side of the cross section of the retaining groove, and the slope is used to expand the opening of the retaining groove.

[0017] Furthermore, a through hole is provided through the center of the inner ring, and an arc surface structure is provided at one end of the through hole, and the arc surface structure is formed on one side of the inner ring.

[0018] Furthermore, a baffle structure is provided on the outer edge of the recessed structure, and the baffle structure is used to cooperate with the sealing structure on the end face of the retaining frame to abut against it.

[0019] Furthermore, a refueling hole is formed on one side of the outer ring, the refueling hole is connected to an oil channel, and one end of the oil channel is connected between the outer ring and the inner ring.

[0020] Furthermore, the oil filling hole is provided with a sealing member.

[0021] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0022] 1. Compared with the traditional independent sealing plate, the utility model has better sealing performance;

[0023] 2. The cage of the utility model is made of glass fiber reinforced plastic, which can reduce the overall weight of the bearing and achieve lightweight;

[0024] 3. A retaining groove is arranged on the surface of the outer ring of the utility model, and the retaining groove can limit the axial displacement of the bearing and improve the stability of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is further described below in conjunction with the accompanying drawings:

[0026] Figure 1 It is a cross-sectional schematic diagram of the bearing of the utility model;

[0027] Figure 2 It is a schematic diagram of the structure of the outer ring of the utility model;

[0028] Figure 3 It is a structural schematic diagram of the inner ring of the utility model;

[0029] Figure 4 This is a schematic cross-sectional structure diagram of Embodiment 2 of the present utility model;

[0030] In the figure: 1-outer ring; 11-stop groove; 12-oil filling hole; 13-oil channel; 14-sealing member; 15-first rolling groove;

[0031] 2-inner ring; 21-second rolling groove; 22-cambered surface structure;

[0032] 3- rolling element; 4- cage; 41- sealing structure;

[0033] 5-recess structure; 51-first recess; 52-second recess; 53-blocking sheet structure;

[0034] 6-Through hole. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0037] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0038] Example 1

[0039] A deep groove ball bearing for an automobile gearbox comprises an outer ring 1 and an inner ring 2, wherein the inner ring 2 is rotatably sleeved in the outer ring 1;

[0040] The inner wall of the outer ring 1 is formed with a first rolling groove 15. Figure 2 As shown;

[0041] The outer wall of the inner ring 2 is formed with a second rolling groove 21. Figure 3 As shown;

[0042] A plurality of rolling bodies 3 are evenly distributed between the outer ring 1 and the inner ring 2. The rolling bodies 3 are movably embedded between the first rolling groove 15 and the second rolling groove 21. Figure 1 As shown;

[0043] The rolling elements 3 are used to transfer load between the outer ring 1 and the inner ring 2 and to reduce friction.

[0044] A retainer 4 is provided between the outer ring 1 and the inner ring 2, and the retainer 4 is used to fix the rolling elements 3 between the outer ring 1 and the inner ring 2, so that the rolling elements 3 are evenly distributed between the outer ring 1 and the inner ring 2;

[0045] In this embodiment, a sealing structure 41 is formed on the end surface of the retainer 4, and the cross section formed by the retainer 4 and the end surface sealing structure 41 is T-shaped. Figure 1 As shown;

[0046] The retainer 4 and the sealing structure 41 on its end surface are integrally formed;

[0047] In this embodiment, the retainer 4 is entirely made of glass fiber reinforced plastic, which can make the retainer 4 lighter and achieve a lighter bearing as a whole.

[0048] A recessed structure 5 is formed on one side of the bearing, and further, the recessed structure 5 includes a first recess 51 and a second recess 52;

[0049] The recessed structure 5 can cooperate with the sealing structure 41 to seal one side of the bearing;

[0050] Specifically, the first recess 51 is formed on the inner side wall of the outer ring 1, and the second recess 52 is formed on the outer side wall of the inner ring 2. Figure 1 As shown;

[0051] When the retainer 4 is installed between the outer ring 1 and the inner ring 2, the inner surface of the sealing structure 41 cooperates and abuts against the first recess 51 and the second recess 52, thereby sealing one side of the bearing.

[0052] A stop groove 11 is provided on the outer wall of the outer ring 1 in the circumferential direction. Figure 1 , Figure 2 As shown;

[0053] The stop groove 11 is used to limit the axial displacement of the bearing so as to improve the stability of the bearing after installation;

[0054] In this embodiment, the position of the retaining groove 11 close to the center line of the cross section has a certain slope, such as Figure 1 As shown;

[0055] By designing the slope, the opening of the retaining groove 11 can be correspondingly enlarged, thereby facilitating the matching insertion of the corresponding limiting portion during the installation of the bearing.

[0056] A through hole 6 is formed through the center of the inner ring 2, and a curved surface structure 22 is provided at one end of the through hole 6. Figure 1 , Figure 3 As shown, the arc surface structure 22 is formed on the inner side wall of the inner ring 2;

[0057] The arc surface structure 22 can facilitate the installation of corresponding components into the through hole 6 during the bearing assembly.

[0058] Example 2

[0059] This embodiment is different from the embodiment 1 in that, in this embodiment, the outer edge of the recessed structure 5 is provided with a blocking sheet structure 53, such as Figure 4 As shown;

[0060] The baffle structure 53 can cooperate with the outer surface of the sealing structure 41 to limit the position, thereby limiting the retainer 4 from the outside, thereby improving the connection stability between the retainer 4 and the bearing;

[0061] In this embodiment, the blocking piece structure 53 is made of rubber material, and the blocking piece structure 53 will not affect the entry of the sealing structure 41 when the retaining frame 4 is installed to the bearing.

[0062] In this embodiment, an oil passage 13 is provided in the outer ring 1, one end of the oil passage 13 is a refueling hole 12, and the refueling hole 12 is formed on one side of the outer ring 1. Figure 4 As shown;

[0063] The other end of the oil passage 13 is connected to the first rolling groove 15. Figure 4 As shown;

[0064] Lubricant can be added between the outer ring 1 and the inner ring 2 through the filling hole 12;

[0065] A sealing member 14 is provided in the filling hole 12. Figure 4 As shown;

[0066] The sealing member 14 can seal the fuel filling hole 12 .

[0067] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. Bearings for automobile gearboxes, including An outer ring (1) and an inner ring (2), wherein the inner ring (2) is rotatably connected to the outer ring (1); Rolling elements (3) for transferring load and reducing friction between the outer ring (1) and the inner ring (2); A cage (4) is used to fix the rolling elements (3) between the outer ring (1) and the inner ring (2) so that the rolling elements (3) are evenly distributed between the outer ring (1) and the inner ring (2); Features: A sealing structure (41) is formed on the end surface of the retaining frame (4), and a recessed structure (5) adapted to the sealing structure (41) is formed on one side of the bearing. The sealing structure (41) cooperates with the recessed structure (5) to achieve sealing on one side of the bearing.

2. The bearing for automobile gearbox according to claim 1, characterized in that: The cross section formed by the retaining frame (4) and the sealing structure (41) on its end surface is T-shaped.

3. The bearing for automobile gearbox according to claim 1, characterized in that: The retaining frame (4) and the sealing structure (41) on its end surface are integrally formed.

4. The bearing for automobile gearbox according to claim 1, characterized in that: The retaining frame (4) is made of glass fiber reinforced plastic.

5. The bearing for automobile gearbox according to claim 1, characterized in that: A retaining groove (11) is provided on the surface of the outer ring (1).

6. The bearing for automobile gearbox according to claim 5, characterized in that: A slope is formed on one side of the cross section of the retaining groove (11), and the slope is used to expand the opening of the retaining groove (11).

7. The bearing for automobile gearbox according to claim 1, characterized in that: A through hole (6) is provided through the center of the inner ring (2), and a curved surface structure (22) is provided at one end of the through hole (6), and the curved surface structure (22) is formed on one side of the inner ring (2).

8. The bearing for automobile gearbox according to claim 1, characterized in that: The outer edge of the recessed structure (5) is provided with a baffle structure (53), and the baffle structure (53) is used to cooperate with the sealing structure (41) on the end surface of the retaining frame (4) to abut against it.

9. The bearing for automobile gearbox according to claim 1, characterized in that: A refueling hole (12) is formed on one side of the outer ring (1), and the refueling hole (12) is connected to an oil passage (13), and one end of the oil passage (13) is connected between the outer ring (1) and the inner ring (2).

10. The bearing for automobile gearbox according to claim 9, characterized in that: The refueling hole (12) is provided with a sealing member (14).

Images