High-rigidity shock absorber bearing
By distributing interference grooves on the lower cover of the vibration damper bearing and inserting reinforcement plates, the problem of easy breakage of the lower cover of the bearing is solved, the stiffness and load-bearing capacity of the bearing are improved, and the normal operation and service life of the bearing are ensured.
Patent Information
- Application Number
- CN202422444389.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-10-09
AI Technical Summary
When the existing shock absorber bearings are impacted by abnormal buffer block load, the lower cover is prone to breaking, which cannot ensure the normal operation of the bearing and cannot play a buffering role.
A high-stiffness vibration damper bearing is designed to enhance the stiffness and strength of the bearing lower cover by uniformly distributing several interference grooves in the circumference of the axial end of the bearing lower cover and inserting reinforcement plates in the groove.
By enhancing the stiffness and strength of the bearing lower cover, the overall bearing capacity and deformation resistance of the bearing are improved, the bottom cover of the bearing is avoided, the normal operation of the bearing is ensured, and the service life is extended.
Smart Images
Figure CN223019222U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a shock absorber bearing with high rigidity. Background Art
[0002] A shock absorber bearing generally refers to a bearing used in an automotive shock absorber. Its main function is to reduce the friction during the movement of the shock absorber, improve the movement efficiency, and at the same time ensure the stability and reliability of the shock absorber. Since the shock absorber needs to move up and down frequently during operation, the bearing needs to have good wear resistance to withstand continuous friction. The shock absorber bearing needs to be able to withstand various loads generated during vehicle driving. In automotive engineering, the shock absorber bearing is one of the key components to ensure the smooth running of the vehicle and improve driving comfort.
[0003] An automotive shock absorber is an elastic connection force transmission component between the wheel and the vehicle body. Its main function is to suppress the oscillation when the spring rebounds after absorbing vibration and the impact from the road surface, and accelerate the attenuation of the vibration of the frame and the vehicle body, thereby improving the driving comfort of the vehicle. The bearing is located at the upper end of the shock absorber spring and plays a supporting role. The shock absorber bearing bears a large load, generally bearing a large axial force and a certain radial force.
[0004] At present, when the inner diameter of the lower cover of the shock absorber bearing is subjected to an abnormal buffer block load impact, the lower cover of the bearing is prone to fracture, which cannot ensure the normal operation of the bearing and cannot play a buffering role. Content of the Utility Model
[0005] Aiming at the deficiencies of the prior art, the utility model provides a shock absorber bearing with high rigidity.
[0006] To achieve the above object, the utility model provides a shock absorber bearing with high rigidity, which includes an upper bearing cover, a lower bearing cover, and steel balls arranged between the upper bearing cover and the lower bearing cover. An upper raceway ring is arranged between the steel balls and the upper bearing cover, and a lower raceway ring is arranged between the steel balls and the lower bearing cover. A plurality of interference slots are evenly distributed circumferentially at the axial end of the lower bearing cover. A plurality of reinforcing plates are press-fitted into the plurality of interference slots. A plurality of convex points are arranged on the groove side wall on the radially inward side of the interference slot. The plurality of convex points are arranged circumferentially. The convex points abut against the side wall of the reinforcing plate when the reinforcing plate is installed. The reinforcing plate is press-fitted into the bottom of the interference slot through the convex points to form an embedding.
[0007] Further, a notch groove is communicated with the side of the interference slot, and the notch groove is arranged at any one of the two ends in the length direction of the interference slot.
[0008] Further, the notch groove is semicircularly arranged.
[0009] Further, the mounting surface of the reinforcing plate corresponding to the bottom of the interference slot is arranged in an arc protruding outward, and the bottom of the interference slot is adaptively mounted corresponding to the mounting surface of the reinforcing plate.
[0010] Further, the interference amount of the reinforcing plate through the bump is 0.2 - 0.4 mm.
[0011] Further, a gap is provided between the reinforcing plate and the side wall of the interference slot on the radially outward side of the interference slot, and the size of the gap is smaller than the interference amount.
[0012] Further, a push block is slidably connected to the notch groove, and a shoveling part for facilitating its disassembly is provided at one end of the push block corresponding to the reinforcing plate.
[0013] The beneficial effects of the present utility model are as follows: By circumferentially and uniformly distributing a number of interference slots at the axial end of the bearing lower cover and interference-fitting the reinforcing plates in the slots, the stiffness and strength of the bearing lower cover are enhanced, and the overall bearing capacity and anti-deformation ability of the bearing are improved; the setting of the bumps enables the reinforcing plates to form interference with the side walls of the interference slots during the installation process, further ensuring the stability of the reinforcing plates and preventing their relative movement, and enhancing the reliability of the structure; the circumferential arrangement of the bumps ensures uniform stress on the reinforcing plates, avoiding damage caused by local stress concentration. This design simplifies the assembly process, provides guarantee for the long-term stable operation of the bearing, prevents the bearing lower cover from breaking, ensures the normal operation of the bearing, and plays a buffering role; it improves the strength and anti-impact performance of the overall structure; extends the service life of the bearing and enhances the overall performance and reliability of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic cross-sectional structure diagram of an embodiment of the present utility model;
[0015] Figure 2 is a schematic bottom structure diagram of an embodiment of the present utility model;
[0016] Figure 3 is Figure 2 an enlarged structure diagram of part A of DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] The embodiments of the present utility model will be further described below in conjunction with the accompanying drawings: As shown in the figure, a high-rigidity shock absorber bearing includes a bearing upper cover 1, a bearing lower cover 2, and steel balls disposed between the bearing upper cover 1 and the bearing lower cover 2. An upper raceway ring is provided between the steel balls and the bearing upper cover 1, and a lower raceway ring is provided between the steel balls and the bearing lower cover 2. A plurality of interference slots 3 are evenly distributed circumferentially at the axial end of the bearing lower cover 2. A reinforcing plate 4 is press-fitted into a plurality of the interference slots 3. A plurality of bumps 5 are provided on the groove side wall of the interference slot 3 on the radially inward side. The plurality of bumps 5 are arranged circumferentially. When the reinforcing plate 4 is installed, the bumps 5 abut against the side wall of the reinforcing plate 4. The reinforcing plate 4 is press-fitted into the bottom of the interference slot 3 through the bumps 5 to form an embedding.
[0018] A notch groove 6 is communicated with the side of the interference slot 3, and the notch groove 6 is provided at any one of the two ends in the length direction of the interference slot 3. The presence of the notch groove 6 makes the installation and disassembly process of the reinforcing plate 4 more convenient, because it provides a stress release point for the press-fitted reinforcing plate 4, so that the reinforcing plate 4 can be easily taken out through the notch groove 6 when maintenance or replacement is required, without damaging the entire interference fit structure; it improves the maintainability and repair efficiency of the bearing structure and extends the service life of the bearing assembly.
[0019] The notch groove 6 is semicircular. The semicircular notch groove 6 can evenly disperse stress and reduce stress concentration, thereby reducing the risk of damage to the reinforcing plate 4 due to stress concentration during the installation or disassembly process.
[0020] The installation surface of the reinforcing plate 4 corresponding to the bottom of the interference slot 3 is convex outward in an arc shape, and the bottom of the interference slot 3 is adaptively installed corresponding to the installation surface of the reinforcing plate 4. The arc-shaped installation plate can make the reinforcing plate 4 fit more closely with the bottom of the interference slot 3, improve the fitting accuracy, ensure that the pre-tightening force can be evenly transmitted during the interference fit process, thereby enhancing the firmness and stability of the connection; the arc-shaped surface fitting installation can make the connection between the reinforcing plate 4 and the interference slot 3 not easy to displace.
[0021] The interference amount of the reinforcing plate 4 through the bumps 5 is 0.2 - 0.4 mm.
[0022] A gap is provided between the reinforcing plate 4 and the groove side wall on the radially outward side of the interference slot 3, and the size of the gap is smaller than the interference amount.
[0023] A push block 7 is slidably connected to the notch groove 6, and a shoveling part 71 for facilitating its disassembly is arranged at one end of the push block 7 corresponding to the reinforcing plate 4. The arrangement of the shoveling part 71 enables quick and convenient disassembly when the reinforcing plate 4 needs to be replaced or maintained, reduces damage to the reinforcing plate 4, and prolongs its service life. Overall, this design improves the maintainability and operation convenience of the equipment. The shoveling part 71 includes an inclined surface corresponding to the bottom of the reinforcing plate 4, and is inserted into the bottom of the reinforcing plate 4 through the guidance of the inclined surface for convenient disassembly.
[0024] The above embodiments are only one of the preferred specific embodiments of the present invention, and the general changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are included in the protection scope of the present invention.
Claims
1. A high-rigidity shock absorber bearing, comprising an upper bearing cover, a lower bearing cover, and a steel ball disposed between the upper bearing cover and the lower bearing cover, an upper channel ring is disposed between the steel ball and the upper bearing cover, and a lower channel ring is disposed between the steel ball and the lower bearing cover, characterized in that: A plurality of interference grooves are evenly distributed in the circumference of the axial end of the bearing lower cover, and reinforcement plates are interference-embedded in a plurality of the interference grooves. A plurality of protrusions are arranged on the groove side wall on the radially inward side of the interference groove, and the plurality of protrusions are arranged along the circumferential direction. When the reinforcement plate is installed, the protrusions abut against the side wall of the reinforcement plate, and the reinforcement plate is interference-installed to the bottom of the interference groove through the protrusions to form an embedding.
2. The high-rigidity shock absorber bearing according to claim 1, characterized in that: The side edge of the interference groove is connected to a notch groove, and the notch groove is arranged at any one end of the two ends of the interference groove in the length direction.
3. The high-rigidity shock absorber bearing according to claim 2, characterized in that: The notch groove is arranged in a semicircular shape.
4. The high-rigidity shock absorber bearing according to claim 3, characterized in that: The mounting surface of the reinforcing plate corresponding to the bottom of the interference groove is arranged in an arc shape protruding outwards, and the bottom of the interference groove is adapted to be mounted corresponding to the mounting surface of the reinforcing plate.
5. The high-rigidity shock absorber bearing according to claim 1, characterized in that: The interference fit of the reinforcing plate through the protrusion is 0.2-0.4 mm.
6. The high-rigidity shock absorber bearing according to claim 2, characterized in that: A gap is provided between the reinforcing plate and a groove side wall of the interference groove on a radially outward side, and a size of the gap is smaller than the interference amount.
7. The high-rigidity shock absorber bearing according to claim 6, characterized in that: The notch groove is slidably connected with a push block, and one end of the push block is provided with a shovel portion corresponding to the reinforcing plate for facilitating its disassembly.