High-rigidity shock absorber bearing with reinforcing plate

Abstract

The utility model provides a high rigidity shock absorber bearing with a reinforcing plate, which comprises a bearing upper cover, a bearing lower cover and a steel ball arranged between the bearing upper cover and the bearing lower cover, an upper channel ring is arranged between the steel ball and the bearing upper cover, a lower channel ring is arranged between the steel ball and the bearing lower cover, and the reinforcing plate is arranged between the steel ball and the bearing lower cover. A reinforcing structural part is arranged at the axial end part of the bearing lower cover, is matched with an opening of the bearing lower cover in an inserting manner, and comprises a first end which covers and abuts against the axial end part, a second end for bearing a buffer load, and a connecting section for connecting the first end and the second end; the connecting section is in interference fit with the inner wall of the opening of the bearing lower cover, and an interference structure matched with the mounting of the connecting section is correspondingly arranged on the inner wall of the opening of the bearing lower cover; when the bearing is impacted by the abnormal buffer block load, the abnormal buffer block load is loaded through the reinforcing structural part, the bearing lower cover is prevented from being broken, normal operation of the bearing is guaranteed, and the buffering effect is achieved.

Description

Technical Field

[0001] The utility model relates to a high-rigidity shock absorber bearing with a reinforcing plate. 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 bear 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-transmitting 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. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a high-rigidity shock absorber bearing with a reinforcing plate.

[0006] To achieve the above object, the utility model provides a high-rigidity shock absorber bearing with a reinforcing plate, including 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 reinforcing structural member is arranged at the axial end of the lower bearing cover. The reinforcing structural member is inserted into the opening of the lower bearing cover in a matching manner. The reinforcing structural member includes a first end that covers and abuts against the axial end, a second end that bears the buffer load, and a connecting section that connects the first end and the second end. The connecting section is in interference fit with the inner wall of the opening of the lower bearing cover, and an interference structure for its installation is correspondingly arranged on the inner wall of the opening of the lower bearing cover.

[0007] Further, the interference structure includes ribs uniformly distributed along the circumference on the inner wall of the opening of the lower bearing cover, and the ribs are arranged corresponding to the axial length of the opening of the lower bearing cover.

[0008] Further, the protruding degree of the ribs relative to the inner wall of the lower bearing cover gradually increases towards the inside along the axis.

[0009] Further, one end of the rib is provided with an elastic abutting block, and the elastic abutting block is arranged corresponding to the joint of the second end of the reinforcing structural member and the connecting section.

[0010] Further, a plurality of buckle portions are arranged on the inner peripheral wall of the reinforcing structural member and are evenly distributed along the circumferential direction.

[0011] Further, a contact sealing structure is provided on the outer sides of the upper bearing cover and the lower bearing cover.

[0012] Further, a plurality of hollow grooves for weight reduction are also arranged on the inner peripheral wall of the lower bearing cover.

[0013] Further, an interference groove is arranged on one side of the first end facing the axial end of the lower bearing cover, and an interference member is filled in the interference groove. During the installation and pressing process of the first end, an interference fit is formed with the axial end of the lower bearing cover through the interference member.

[0014] The beneficial effects of the present utility model are as follows: The cooperation of the steel balls between the upper bearing cover and the lower bearing cover with the upper and lower raceway rings effectively improves the bearing capacity of the bearing; the stability of the axial end of the lower bearing cover is enhanced through the arrangement of the reinforcing structural member. When subjected to the impact of an abnormal buffer block load, the abnormal buffer block load is carried by the reinforcing structural member, avoiding the fracture of the lower bearing cover, ensuring the normal operation of the bearing, and playing a buffering role; the bearing damage caused by excessive axial force is avoided; the interference fit between the connecting section and the inner wall of the opening of the lower bearing cover ensures the firm installation of the reinforcing structural member, improves the strength and impact resistance of the overall structure; the service life of the bearing is prolonged, and the overall performance and reliability of the bearing are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a sectional three-dimensional structural schematic diagram of an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] 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 with a reinforcing plate 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 reinforcing structural member 3 is provided at the axial end of the bearing lower cover 2. The reinforcing structural member 3 is inserted into the opening of the bearing lower cover 2 in a mating manner. The reinforcing structural member 3 includes a first end 10 that merges and abuts against the axial end, a second end 11 that bears the buffer load, and a connecting section 12 that connects the first end 10 and the second end 11. The connecting section 12 is in interference fit with the inner wall of the opening of the bearing lower cover 2, and the inner wall of the opening of the bearing lower cover 2 is correspondingly provided with an interference structure for its installation.

[0017] The interference structure includes ribs 4 that are evenly distributed along the circumferential direction on the inner wall of the opening of the bearing lower cover 2. The ribs 4 are provided corresponding to the axial length of the opening of the bearing lower cover 2. The ribs 4 are evenly distributed along the circumferential direction of the inner wall of the opening of the bearing lower cover 2, which can provide a uniform interference fit force, ensure the tight connection between the reinforcing structural member 3 and the bearing lower cover 2, and prevent relative displacement; it helps to disperse and bear external forces in the axial direction, enhance the structural strength and anti-deformation ability of the bearing lower cover 2; in addition, this structure also helps to simplify the assembly process. While preventing the reinforcing plate from falling off, it avoids the adverse effects caused by excessive press-fitting force, and improves the machining tolerance of the inner diameter of the lower cover and the reinforcing plate.

[0018] The protruding degree of the ribs 4 relative to the inner wall of the bearing lower cover 2 gradually increases inward along the axis. The overinsertion of the reinforcing structural member 3 and the bearing lower cover 2 can make the interference fit between the reinforcing structural member 3 and the bearing lower cover 2 tighter through the change of the protruding degree of the ribs 4, improve the assembly accuracy and axial load-bearing capacity, improve the tightness and fastening of the assembly, and prevent the loosening of the structural members due to vibration and other reasons.

[0019] An elastic abutting block 5 is provided at one end of the rib 4. The elastic abutting block 5 is provided corresponding to the connection between the second end 11 and the connecting section 12 of the reinforcing structural member 3. It guides the reinforcing structural member 3 to be accurately in place during the assembly process, ensuring the accuracy and reliability of the connection; it prevents the reinforcing structural member 3 from being overinserted axially inward and causing damage to the reinforcing structural member 3, and the elastic abutting block 5 can bear a certain amount of energy generated by vibration or impact, enhancing the stability and durability of the entire bearing structure.

[0020] A plurality of snap portions 6 are provided on the inner peripheral wall of the reinforcing structural member 3 and are evenly distributed along the circumferential direction. It is convenient for hanging the dust cover later.

[0021] A contact sealing structure is provided on the outer sides of the bearing upper cover 1 and the bearing lower cover 2. It plays a role in enhancing the sealing.

[0022] A plurality of hollow grooves 7 for weight reduction are also provided on the inner peripheral wall of the bearing lower cover 2. On the one hand, it plays a role in weight reduction, and on the other hand, it increases the uniformity of the mold flow and improves the injection molding quality.

[0023] An interference groove 8 is provided on one side of the first end 10 facing the axial end of the axial lower cover. An interference member 9 is filled in the interference groove 8. During the installation and pressing process of the first end 10, an interference fit is formed between the interference member 9 and the axial end of the bearing lower cover 2. The interference fit can ensure a firm connection between the first end and the bearing lower cover 2, improving the overall stability and load-bearing capacity of the structure; the design of the interference groove 8 and the interference member 9 allows for the provision of additional pre-tightening force in the axial direction, helping to prevent relative displacement caused by axial force. The interference member 9 can have a certain elasticity to prevent hard contact between the reinforcing structural member 3 and the lower cover, helping to absorb and disperse impacts and vibrations from the axial direction.

[0024] The above embodiments are only one of the preferred specific embodiments of the present invention. Ordinary 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 with a reinforcing plate, comprising a bearing upper cover, a bearing lower cover, and steel balls disposed between the bearing upper cover and the bearing lower cover. An upper raceway ring is disposed between the steel balls and the bearing upper cover, and a lower raceway ring is disposed between the steel balls and the bearing lower cover. It is characterized in that: A reinforcing structural member is provided on the axial end of the bearing lower cover. The reinforcing structural member is inserted into the opening of the bearing lower cover in a mating manner. The reinforcing structural member includes a first end that covers and abuts against the axial end, a second end that bears buffer loads, and a connecting section that connects the first end and the second end. The connecting section is in interference fit with the inner wall of the opening of the bearing lower cover, and an interference structure for its installation is correspondingly provided on the inner wall of the opening of the bearing lower cover.

2. The high-rigidity shock absorber bearing with a reinforcing plate according to claim 1, wherein: The interference structure includes ribs that are evenly distributed circumferentially on the inner wall of the opening of the bearing lower cover, and the ribs are provided corresponding to the axial length of the opening of the bearing lower cover.

3. The high-rigidity shock absorber bearing with a reinforcing plate according to claim 2, characterized in that: The protruding degree of the ribs relative to the inner wall of the bearing lower cover gradually increases towards the inside in the axial direction.

4. The high-rigidity shock absorber bearing with a reinforcing plate according to claim 3, characterized in that: An elastic abutting block is provided at one end of the rib, and the elastic abutting block is provided corresponding to the connection between the second end and the connecting section of the reinforcing structural member.

5. The high-rigidity shock absorber bearing with a reinforcing plate according to claim 1, characterized in that: A plurality of snap portions are provided on the inner peripheral wall of the reinforcing structural member and are evenly distributed circumferentially.

6. The high-rigidity shock absorber bearing with a reinforcing plate according to claim 1, characterized in that: A contact sealing structure is provided on the outer sides of the bearing upper cover and the bearing lower cover.

7. The high-rigidity shock absorber bearing with a reinforcing plate according to claim 1 or 5, characterized in that: A plurality of hollowing grooves for weight reduction are further provided on the inner peripheral wall of the bearing lower cover.

8. The high-rigidity shock absorber bearing with a reinforcing plate according to claim 3, characterized in that: An interference groove is provided on one side of the first end facing the axial end of the bearing lower cover, and an interference member is filled in the interference groove. The first end forms an interference fit with the axial end of the bearing lower cover through the interference member during the installation and pressing process.

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