Steering gear bearing

Abstract

The utility model discloses a steering gear bearing, which belongs to the technical field of steering gears, and comprises two outer ring bodies and two inner ring bodies, the inner walls of the two outer ring bodies and the outer surfaces of the two inner ring bodies are jointly connected with a plurality of balls in a sliding manner, and the outer surfaces of the balls are jointly connected with two limiting frames in a sliding manner. The two limiting frames are connected in a clamped mode, the inner walls of the two limiting frames are fixedly connected with the inner ring body, and first arc-shaped grooves are formed in the inner walls of the two outer ring bodies; through cooperation of a first arc-shaped groove, a second arc-shaped groove, a first groove, a first positioning hole, a first positioning rod, a first screw head, a first nut, a second groove, a second positioning hole, a second positioning rod, a second screw head and a second nut, people can disassemble and assemble the bearing, and therefore people can maintain the bearing conveniently; and due to the arrangement of the first clamping groove, the first clamping block, the second clamping groove, the second clamping block, the positioning groove and the positioning block, the overall stability of the bearing is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steering gears, and specifically relates to a steering gear bearing. Background Technique

[0002] The steering gear is the most important component in the vehicle steering system, also known as the steering machine or the direction machine. Its main function is to increase the force transmitted from the steering wheel to the steering transmission mechanism and change the direction of force transmission. Essentially, the steering gear is a speed reduction transmission device that appropriately transforms the steering torque and steering angle from the steering wheel and then outputs them to the steering tie rod mechanism, thereby enabling the vehicle to steer. There are various types of steering gears, including rack and pinion type, recirculating ball type, worm crank finger pin type, and power steering gears, etc. These different types of steering gears are applicable to different types of vehicles and application scenarios according to their structures and the types of power assistance, mechanical or power type. Bearings play an important role in the steering gear.

[0003] At present, most bearing rings are integrally arranged. The rotational force between the bearing ring and the steering gear drive shaft is not evenly distributed, which easily leads to excessive local wear and damage. At the same time, it is not convenient to quickly disassemble the whole. When the rotational structure wears and loosens, resulting in bearing backlash, the entire bearing ring needs to be replaced, and single components cannot be disassembled and replaced. Therefore, those skilled in the art have provided a steering gear bearing to solve the problems raised in the above background technique. Content of the Utility Model

[0004] The purpose of the utility model is to provide a steering gear bearing to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution:

[0006] A steering gear bearing includes two outer ring bodies and two inner ring bodies. A plurality of balls are slidably connected between the inner walls of the two outer ring bodies and the outer surfaces of the two inner ring bodies. The outer surfaces of the plurality of balls are slidably connected to two limit frames. The two limit frames are clamped together. The inner walls of the two limit frames are fixedly connected to the inner ring body. First arc grooves are provided on the inner walls of the two outer ring bodies, and second arc grooves are provided on the outer surfaces of the two inner ring bodies. Two first grooves are provided on one side surface of each of the two outer ring bodies away from each other, and two first positioning holes are provided on one side surface of each of the two outer ring bodies close to each other. First positioning rods are provided inside the two groups of first positioning holes.

[0007] As a further scheme of the utility model: The front ends of the two first positioning rods are fixedly connected with first screw heads, and the outer surfaces of the two first positioning rods are threadedly connected with first nuts.

[0008] As a further solution of the utility model: on one side of the two inner ring bodies away from each other, second grooves are provided, and on one side of the two inner ring bodies close to each other, two second positioning holes are provided.

[0009] As a further solution of the utility model: second positioning rods are arranged inside the two groups of second positioning holes, and second wire heads are fixedly connected to the front ends of the two second positioning rods.

[0010] As a further solution of the utility model: second nuts are fixedly connected to the outer surfaces of the two second positioning rods, the two outer ring bodies are clamped, and the two inner ring bodies are clamped.

[0011] As a further solution of the utility model: two first clamping grooves are provided on the back surface of one of the outer ring bodies, and two first clamping blocks are fixedly connected to the front surface of one of the outer ring bodies.

[0012] As a further solution of the utility model: two second clamping grooves are provided on the back surface of one of the inner ring bodies, and two second clamping blocks are fixedly connected to the front surface of one of the inner ring bodies.

[0013] As a further solution of the utility model: two positioning blocks are fixedly connected to the bottom surface of one of the limiting frames, and two positioning grooves are provided on the upper surface of one of the limiting frames.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] For this steering gear bearing, through the cooperation of the first arc groove, the second arc groove, the first groove, the first positioning hole, the first positioning rod, the first wire head, the first nut, the second groove, the second positioning hole, the second positioning rod, the second wire head and the second nut, people can disassemble and assemble the bearing, thus facilitating the maintenance of the bearing by people. The settings of the first clamping groove, the first clamping block, the second clamping groove, the second clamping block, the positioning groove and the positioning block greatly increase the overall stability of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a steering gear bearing;

[0017] Figure 2 It is a rear view of a steering gear bearing;

[0018] Figure 3 It is a top sectional view of the outer ring body in a steering gear bearing;

[0019] Figure 4 It is a side sectional view of the inner ring body in a steering gear bearing.

[0020] In the figure: 1. Outer ring body; 2. Positioning block; 3. Ball; 4. Limiting frame; 5. Inner ring body; 6. First arc groove; 7. Second arc groove; 8. First groove; 9. First positioning hole; 10. First positioning rod; 11. First thread head; 12. First nut; 13. Second groove; 14. Second positioning hole; 15. Second positioning rod; 16. Second thread head; 17. Second nut; 18. First clamping groove; 19. First clamping block; 20. Second clamping groove; 21. Second clamping block; 22. Positioning groove. Detailed implementation mode

[0021] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0023] Please refer to Figures 1 to 4, in the embodiment of the present utility model, a steering gear bearing includes two outer ring bodies 1 and two inner ring bodies 5. A plurality of balls 3 are slidably connected between the inner walls of the two outer ring bodies 1 and the outer surfaces of the two inner ring bodies 5. The outer surfaces of the plurality of balls 3 are slidably connected with two limiting frames 4. The two limiting frames 4 are clamped with each other. The inner walls of the two limiting frames 4 are fixedly connected to the inner ring body 5. First arc grooves 6 are formed in the inner walls of the two outer ring bodies 1, and second arc grooves 7 are formed in the outer surfaces of the two inner ring bodies 5. Two first grooves 8 are formed in the side surfaces of the two outer ring bodies 1 away from each other, and two first positioning holes 9 are formed in the side surfaces of the two outer ring bodies 1 close to each other. First positioning rods 10 are arranged inside the two groups of first positioning holes 9, which enables the bearing to be disassembled, assembled and classified, thus solving the problems that at present, the bearing rings are mostly integrally arranged, the rotational force between the bearing rings and the steering gear drive shaft is not evenly distributed, which easily causes excessive local wear and damage, and at the same time, it is not convenient to quickly disassemble the whole. When the rotational structure wears and loosens, resulting in bearing backlash, the whole bearing ring needs to be replaced, and single components cannot be disassembled and replaced.

[0024] The front ends of the two first positioning rods 10 are fixedly connected with first screw heads 11. The outer surfaces of the two first positioning rods 10 are threadedly connected with first nuts 12. Second grooves 13 are formed in the side surfaces of the two inner ring bodies 5 away from each other, and two second positioning holes 14 are formed in the side surfaces of the two inner ring bodies 5 close to each other. Second positioning rods 15 are arranged inside the two groups of second positioning holes 14. The front ends of the two second positioning rods 15 are fixedly connected with second screw heads 16. The outer surfaces of the two second positioning rods 15 are fixedly connected with second nuts 17. The two outer ring bodies 1 are clamped with each other, and the two inner ring bodies 5 are clamped with each other, which enables people to disassemble and assemble the bearing, thus facilitating people's daily maintenance of the bearing.

[0025] Two first clamping grooves 18 are formed in the back surface of one of the outer ring bodies 1, and two first clamping blocks 19 are fixedly connected to the front surface of one of the outer ring bodies 1. Two second clamping grooves 20 are formed in the back surface of one of the inner ring bodies 5, and two second clamping blocks 21 are fixedly connected to the front surface of one of the inner ring bodies 5. Two positioning blocks 2 are fixedly connected to the bottom surface of one of the limiting frames 4, and two positioning grooves 22 are formed in the upper surface of one of the limiting frames 4, greatly increasing the overall stability of the bearing and preventing the bearing from falling apart during operation.

[0026] The working principle of the present utility model is as follows: When the bearing is damaged, people can remove the first nut 12 and the second nut 17, and then separate the outer ring body 1, the inner ring body 5 and the limiting frame 4 respectively. Immediately afterwards, people can replace the damaged part. After the replacement is completed, the first clamping block 19, the second clamping block 21 and the positioning block 2 can be respectively clamped into the first clamping groove 18, the second clamping groove 20 and the positioning groove 22. Finally, people can insert the first positioning rod 10 and the second positioning rod 15 into the first positioning hole 9 and the second positioning hole 14 respectively, and then fix them by using the first nut 12 and the second nut 17.

[0027] The above-mentioned 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 replacements or changes, and all should be covered within the protection scope of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0028] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A steering gear bearing, comprising two outer ring bodies (1) and two inner ring bodies (5), characterized in that: The inner walls of the two outer ring bodies (1) and the outer surfaces of the two inner ring bodies (5) are slidably connected with a plurality of balls (3), the outer surfaces of the plurality of balls (3) are slidably connected with two limit frames (4), the two limit frames (4) are snap-fitted to each other, the inner walls of the two limit frames (4) are fixedly connected to the inner ring bodies (5), the inner walls of the two outer ring bodies (1) are each provided with a first arc groove (6), the outer surfaces of the two inner ring bodies (5) are each provided with a second arc groove (7), the side surfaces of the two outer ring bodies (1) that are away from each other are each provided with two first grooves (8), the side surfaces of the two outer ring bodies (1) that are close to each other are each provided with two first positioning holes (9), and the interiors of the two groups of the first positioning holes (9) are each provided with a first positioning rod (10).

2. A steering gear bearing according to claim 1, characterized in that: The front ends of the two first positioning rods (10) are fixedly connected to the first thread heads (11), and the outer surfaces of the two first positioning rods (10) are threadedly connected to the first nuts (12).

3. A steering gear bearing according to claim 1, characterized in that: A second groove (13) is provided on the side surfaces of the two inner ring bodies (5) that are away from each other, and two second positioning holes (14) are provided on the side surfaces of the two inner ring bodies (5) that are close to each other.

4. A steering gear bearing according to claim 3, characterized in that: Second positioning rods (15) are provided inside the two groups of the second positioning holes (14), and the front ends of the two second positioning rods (15) are fixedly connected to second thread heads (16).

5. A steering gear bearing according to claim 4, characterized in that: The outer surfaces of the two second positioning rods (15) are fixedly connected with second nuts (17), the two outer ring bodies (1) are clamped together, and the two inner ring bodies (5) are clamped together.

6. A steering gear bearing according to claim 1, characterized in that: Two first clamping grooves (18) are provided on the back side of one of the outer ring bodies (1), and two first clamping blocks (19) are fixedly connected to the front side of one of the outer ring bodies (1).

7. A steering gear bearing according to claim 1, characterized in that: Two second clamping grooves (20) are provided on the back side of one of the inner ring bodies (5), and two second clamping blocks (21) are fixedly connected to the front side of one of the inner ring bodies (5).

8. A steering gear bearing according to claim 1, characterized in that: The bottom surface of one of the limit frames (4) is fixedly connected to two positioning blocks (2), and the upper surface of one of the limit frames (4) is provided with two positioning grooves (22).

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