Angular contact ball bearing
By designing angular contact ball bearings, using components such as tolerance rings and drive parts to achieve 0-play state inside the bearing, the problem of difficulty in achieving 0-play and center-aligning functions in the prior art is solved, and the effect of low-surge and large-simultaneous functions is achieved.
Patent Information
- Application Number
- CN202420826600.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-04-19
AI Technical Summary
Existing ball bearings are difficult to achieve zero-clear design and large center-aligning functions in the steering column of the automobile, and there is a problem of large axial momentum during the processing process.
An angular contact ball bearing is designed. By setting raceways and tolerance rings on the outer ring and inner ring, and using components such as drive parts, corrugated washers and locking springs to achieve axial movement of the inner ring relative to the outer ring, gradually reducing the clearance inside the bearing and achieving a zero-gas state.
The bearing 0 clearance design is realized, which reduces the axial twitching momentum. At the same time, the center-aligning function is improved through the high curvature design, which adapts to the special requirements of the automobile steering column, and simplifies the production process and reduces costs.
Smart Images
Figure CN222596554U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearings, in particular to an angular contact ball bearing. Background Art
[0002] At present, ball bearings are commonly used in automobile steering columns. Most of these bearings are thin-walled series bearings. With the development of the current automobile industry, the requirements for bearings are becoming more and more special. Most customers require that the automobile steering column bearings must be designed with zero clearance to meet the purpose of smaller axial movement. At the same time, the bearings are required to have a larger self-aligning function. However, it is difficult for conventional ball bearings to achieve zero clearance processing and a large self-aligning function during the processing process. Utility Model Content
[0003] In view of the deficiencies in the prior art, the utility model provides an angular contact ball bearing to solve the problem that the prior art lacks an automobile steering column bearing with zero bearing clearance, low axial play and greater self-aligning function.
[0004] To achieve the above-mentioned purpose, the utility model provides an angular contact ball bearing, including an outer ring, an inner ring and a rolling body rollingly arranged between the outer ring and the inner ring, the outer ring and the inner ring are both provided with raceways for the rolling body to move, including a tolerance ring, the inner ring and the tolerance ring cooperate with each other and the inner ring is sleeved on the tolerance ring, the tolerance ring is provided with a socket for coaxially aligning with the inner ring shaft hole and for inserting an external shaft component, a force-applying portion is bent on the outer peripheral wall of the tolerance ring toward the inner ring, a side wall of one side of the inner ring is bent toward the rolling body to form a mating portion for mating with the force-applying portion, and a driving member is provided on one side of the tolerance ring for pushing the tolerance ring to move along the axis direction of the socket after the external shaft component cooperates with the tolerance ring and fixedly mating with the external shaft component after the tolerance ring moves.
[0005] The above technical solution is beneficial in that: when assembling the bearing, the operator punches the inner ring onto the tolerance ring, and then assembles the inner ring and the rolling element with the outer ring. At this time, after the bearing is assembled, the operator plugs the shaft component into the socket of the tolerance ring and assembles the outer ring with the external tooling. After the shaft component, the external tooling and the bearing are assembled, the operator drives the tolerance ring to move along the axis of the shaft component through the driving member. The movement of the tolerance ring causes the inner ring to continue to move along the axis of the shaft component through the abutment between the force-applying portion and the matching portion, that is, the axial load is applied to the tolerance ring through the driving member, and the axial load is transmitted to the matching portion through the force-applying portion to realize the axial displacement of the inner ring. At this time, because the outer ring and the external tooling are already in an assembled state, the inner ring moves to apply an axial load to the rolling element, thereby realizing the movement of the inner ring relative to the outer ring, so that the internal clearance of the bearing is gradually reduced. When the inner ring reaches a certain displacement, the internal clearance of the bearing can reach a zero clearance effect, that is, the rolling element and the two Each raceway maintains a zero clearance state. After the tolerance ring moves, the operator can fix the drive member and the shaft member to make the bearing maintain a zero clearance state. The above-mentioned technical setting realizes the bearing zero clearance design. At the same time, the bearing body adopts an angular contact ball bearing. The large curvature internal design of the bearing is used to achieve a larger angular clearance solution, which is convenient for adjusting the clearance amount according to design requirements and use requirements, thereby increasing the scope of use. At the same time, the raceway curvature can be increased according to actual needs, that is, the side wall of one side of the outer ring is also bent toward the rolling element to form a matching portion. The matching portion of the outer ring is arranged relative to the matching portion of the inner ring. The setting of the matching portion increases the raceway curvature, and the low torque load of the bearing is achieved by the design of the large curvature of the raceway. The above-mentioned technical solution greatly reduces the production cost and omits the conventional outer ring grinding process. Except for the raceway grinding of the inner ring, the rest can be ensured by turning the workpiece, and no grinding process is required, thereby improving the preparation efficiency.
[0006] The utility model is further configured as follows: the driving member includes a corrugated washer and a locking retaining spring, the corrugated washer and the locking retaining spring are located on one side of the tolerance ring and close to the force-applying portion, the corrugated washer and the locking retaining spring are coaxially aligned with the tolerance ring, the corrugated washer is located between the tolerance ring and the locking retaining spring, the inner circumferential wall of the corrugated washer is gap-fitted with the outer circumferential wall of the force-applying portion, and the outer circumferential wall of the corrugated washer is in contact with the inner circumferential wall of the locking retaining spring.
[0007] The benefits of adopting the above technical solution are: when the bearing clearance needs to be adjusted, the operator pushes the locking retaining spring so that the locking retaining spring applies a certain axial load to the wave washer, and the load pushes the wave washer to shift and contact with the tolerance ring. At this time, the axial load is transmitted to the tolerance ring, and the tolerance ring transmits the axial load to the mating part through the force-applying part, thereby realizing the axial movement of the inner ring. When the inner ring moves to a certain position, the inside of the bearing is in a zero clearance state; in the above technology, the locking retaining spring is a prior art, and its radial cross-section is set in a "U" shape. The retaining spring is a type of fastener. Since it is a prior art, its structure and function will not be described in detail.
[0008] The utility model is further provided with: a plurality of limit grooves are provided in an annular direction on the tolerance ring, the wave washer is bent toward the positions of the plurality of limit grooves to form limit claws, and the limit claws are engaged and matched with the corresponding limit grooves.
[0009] The benefits of adopting the above technical solution are: in the above technology, after the bearing clearance is adjusted, the operator bends the limit claw so that the limit claw is placed in the corresponding limit groove, thereby realizing the snap fit between the limit claw and the limit groove, thereby realizing the connection between the wave washer and the tolerance ring. The setting of the above technology avoids the axial rotation or axial displacement of the wave washer during the operation of the bearing, which causes the bearing clearance to change.
[0010] The utility model is further arranged that: a first anti-dropout block is protruded on the inner walls on both sides of the limiting groove toward the position of the limiting claw, a second anti-dropout block is protruded on the walls on both sides of the limiting claw, the first anti-dropout block is abutted and matched with the adjacent second anti-dropout block, the second anti-dropout block is arranged close to the position of the corrugated washer, and the first anti-dropout block is arranged away from the position of the corrugated washer, and the limiting claw is made of plastic material.
[0011] The benefits of adopting the above technical solution are: the abutment between the first anti-slip block and the second anti-slip block in the above technology prevents the limiting claw from falling out of the limiting groove, thereby improving the connection strength between the corrugated washer and the tolerance ring. The limiting claw in the above technology is made of plastic material, which reduces the weight of the bearing and has a low cost, thereby improving assembly efficiency and reducing production costs.
[0012] The utility model is further configured that: the wave washer is made of spring steel.
[0013] The advantages of adopting the above technical solution are: the wave washer in the above technology is made of spring steel, which reduces the weight of the bearing and is cheaper than bearing steel, thereby improving assembly efficiency and reducing production costs.
[0014] The utility model is further provided that: the tolerance ring is provided with a deformation groove for causing the tolerance ring to deform slightly when the tolerance ring is assembled with the inner ring.
[0015] The benefits of adopting the above technical solution are: when the inner ring and the tolerance ring are assembled, the inner circumferential wall of the inner ring shaft hole will squeeze the tolerance ring, and the diameter of the tolerance ring will become smaller due to the setting of the deformation groove, that is, the width of the deformation groove gradually decreases when the tolerance ring is squeezed. When the diameter of the tolerance ring becomes smaller, it will have a clamping force on the shaft component, thereby improving the connection strength between the shaft component and the tolerance ring, and at the same time it is convenient to guide the radial load on the bearing, thereby improving the radial stiffness of the bearing.
[0016] The utility model further arranges: the tolerance ring is bent toward the outer ring to have a plurality of anti-dropout claws, the inner walls of the anti-dropout claws are gap-matched with the side walls of the outer ring, and the anti-dropout claws are arranged opposite to the force-applying portion.
[0017] The benefit of adopting the above technical solution is that the provision of the anti-slip claws in the above technology prevents the tolerance ring from detaching from the bearing along the bearing axis direction, thereby improving the connection strength between the bearing and the tolerance ring. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 A three-dimensional view of the present invention in cooperation with the shaft component;
[0019] Figure 2 It is a three-dimensional view of the utility model;
[0020] Figure 3 It is a cross-sectional view of the utility model;
[0021] Figure 4 It is a simplified three-dimensional view of the tolerance ring and the wave washer in the utility model in a separated state. DETAILED DESCRIPTION
[0022] The utility model provides an angular contact ball bearing, comprising an outer ring 1, an inner ring 2 and a rolling body 12 rollingly arranged between the outer ring 1 and the inner ring 2, wherein the outer ring 1 and the inner ring 2 are both provided with a raceway 11 for the rolling body 12 to move, and a tolerance ring 3 is provided, wherein the inner ring 2 and the tolerance ring 3 cooperate with each other and the inner ring 2 is sleeved on the tolerance ring 3, wherein the tolerance ring 3 is provided with an insertion hole 31 for coaxially aligning with the axial hole of the inner ring 2 and for inserting an external shaft component, wherein a force applying portion 32 is bent on the outer peripheral wall of the tolerance ring 3 toward the inner ring 2, and a side wall of one side of the inner ring 2 is bent toward the rolling body 12 to form a There is a mating portion 21 for mating with the force-applying portion 32, and a driving member is provided on one side of the tolerance ring 3 for pushing the tolerance ring 3 to move along the axial direction of the jack 31 after the external shaft component is mated with the tolerance ring 3 and for fixedly mating with the external shaft component after the tolerance ring 3 moves, and the driving member includes a corrugated washer 4 and a locking retaining spring 5, and the corrugated washer 4 and the locking retaining spring 5 are located on one side of the tolerance ring 3 and are arranged close to the force-applying portion 32, and the corrugated washer 4 and the locking retaining spring 5 are coaxially aligned with the tolerance ring 3, and the corrugated washer 4 is located between the tolerance ring 3 and the locking retaining spring 5, and the corrugated washer The inner circumferential wall of the ring 4 is gap-matched with the outer circumferential wall of the force-applying part 32, the outer circumferential wall of the wave washer 4 is in contact with the inner circumferential wall of the locking clamp spring 5, a plurality of limit grooves 33 are annularly provided on the tolerance ring 3, the wave washer 4 is bent toward the positions of the plurality of limit grooves 33 to form limit claws 41, the limit claws 41 are engaged with the corresponding limit grooves 33, and the inner walls on both sides of the limit groove 33 are protruded with first anti-slip blocks 331 toward the position of the limit claws 41, and the second anti-slip blocks 42 are protruded on the two side walls of the limit claws 41, and the first anti-slip blocks 331 are connected to the adjacent second The anti-slip block 42 is arranged in abutment with each other, the second anti-slip block 42 is arranged close to the corrugated washer 4, the first anti-slip block 331 is arranged away from the corrugated washer 4, the limiting claw 41 is made of plastic material, the corrugated washer 4 is made of spring steel material, the tolerance ring 3 is provided with a deformation groove 34 for slightly deforming the tolerance ring 3 when the tolerance ring 3 and the inner ring 2 are assembled, the tolerance ring 3 is bent toward the inner ring 2 to have a plurality of anti-slip claws 35, the inner wall of the anti-slip claw 35 is arranged with a clearance fit with the side wall of the inner ring 2, and the anti-slip claw 35 is arranged opposite to the force applying part 32.
[0023] The shaft component described in the above technology is marked as 6 in the accompanying drawings of the specification.
[0024] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.
Claims
1. An angular contact ball bearing, comprising an outer ring, an inner ring and a rolling body rollingly arranged between the outer ring and the inner ring, wherein the outer ring and the inner ring are both provided with raceways for the rolling body to move, characterized in that: It includes a tolerance ring, the inner ring and the tolerance ring cooperate with each other and the inner ring is sleeved on the tolerance ring, the tolerance ring is provided with a socket for coaxially aligning with the inner ring shaft hole and for inserting an external shaft component, a force-applying portion is bent on the outer peripheral wall of the tolerance ring toward the inner ring, and a side wall on one side of the inner ring is bent toward the rolling body to form a matching portion for matching with the force-applying portion, and a driving member is provided on one side of the tolerance ring for pushing the tolerance ring to move along the axis direction of the socket after the external shaft component cooperates with the tolerance ring and fixedly matching with the external shaft component after the tolerance ring moves.
2. An angular contact ball bearing according to claim 1, characterized in that: The driving member includes a corrugated washer and a locking retaining spring, which are located on one side of the tolerance ring and close to the force-applying portion. The corrugated washer and the locking retaining spring are coaxially aligned with the tolerance ring, and the corrugated washer is located between the tolerance ring and the locking retaining spring. The inner circumferential wall of the corrugated washer is clearance-matched with the outer circumferential wall of the force-applying portion, and the outer circumferential wall of the corrugated washer is in contact with the inner circumferential wall of the locking retaining spring.
3. An angular contact ball bearing according to claim 2, characterized in that: The tolerance ring is provided with a plurality of limit grooves in an annular direction, and the wave washer is bent toward the positions of the plurality of limit grooves to form limit claws, and the limit claws are engaged with the corresponding limit grooves.
4. An angular contact ball bearing according to claim 3, characterized in that: A first anti-slip block is protruded on the inner walls on both sides of the limiting groove toward the position of the limiting claw, and a second anti-slip block is protruded on the inner walls on both sides of the limiting claw. The first anti-slip block is abutted and matched with the adjacent second anti-slip block, the second anti-slip block is arranged close to the position of the corrugated washer, and the first anti-slip block is arranged away from the position of the corrugated washer. The limiting claw is made of plastic material.
5. The angular contact ball bearing according to claim 2, characterized in that: The wave washer is made of spring steel.
6. The angular contact ball bearing according to claim 1, characterized in that: The tolerance ring is provided with a deformation groove for causing the tolerance ring to deform slightly when the tolerance ring is assembled with the inner ring.
7. An angular contact ball bearing according to claim 6, characterized in that: The tolerance ring is bent toward the inner ring to form a plurality of anti-dropout claws, the inner walls of the anti-dropout claws are arranged with clearance fit with the inner ring side walls, and the anti-dropout claws are arranged opposite to the force-applying portion.