CN-122014810-A - Multistage large-rotation-angle hydraulic shock absorber assembly

CN122014810ACN 122014810 ACN122014810 ACN 122014810ACN-122014810-A

Abstract

The invention provides a multistage large-rotation-angle hydraulic damper assembly which comprises a large-rotation-angle damping system and a hydraulic damping system, wherein the large-rotation-angle damping system is fixedly connected with the hydraulic damping system, an installing plate is fixedly arranged on the outer edge of the large-rotation-angle damping system, the large-rotation-angle damping system is provided with a damping spring, the damping spring is arranged in a lubricating cavity, lubricating grease is arranged in the lubricating cavity, the hydraulic damping system is provided with a damping cavity, and liquid damping grease is arranged in the damping cavity. The technical problems that the vibration reduction effect of the existing vehicle vibration damper is not ideal, the abrasion of components is rapid, the comfort level and the service life of a vehicle are affected, and the maintenance cost is increased are solved. The invention can be widely applied to clutches.

Inventors

LIN LEZHONG
YU DEREN

Assignees

荣成市黄海离合器有限公司

Dates

Publication Date: 20260512
Application Date: 20260410

Claims (10)

1. The multistage large-rotation-angle hydraulic vibration damper assembly is characterized by comprising a large-rotation-angle vibration damper system and a hydraulic vibration damper system, wherein the large-rotation-angle vibration damper system is fixedly connected with the hydraulic vibration damper system, a mounting plate is fixedly arranged on the outer edge of the large-rotation-angle vibration damper system, a vibration damper spring is arranged on the large-rotation-angle vibration damper system, the vibration damper spring is arranged in a lubricating cavity, lubricating grease is arranged in the lubricating cavity, the hydraulic vibration damper system is provided with a vibration damper cavity, and liquid vibration damping grease is arranged in the vibration damper cavity.
2. The multi-stage large-angle hydraulic damper assembly according to claim 1, wherein the large-angle damping system is provided with a fixed seat a, a cover plate a and a driving plate, the damping spring is arranged between the fixed seat a and the cover plate a, a slideway is arranged on the outer side of the damping spring, and the driving plate is arranged between the fixed seat a and the cover plate a and is positioned on the inner side of the damping spring.
3. The multi-stage large-angle hydraulic damper assembly according to claim 2, wherein the hydraulic damper system is provided with a fixed seat B, a cover plate B and a rotating disc, the cover plate B, the fixed seat B and the rotating disc jointly form the damper chamber, and the rotating disc is located between the fixed seat B and the cover plate B.
4. The multi-stage large-angle hydraulic damper assembly according to claim 3, wherein the hydraulic damper system is further provided with a limiting block and a rotating block, the rotating block is fixedly mounted on the rotating disc, the large-angle hydraulic damper system and the hydraulic damper system are fixed together through a connecting pin, and the limiting block is arranged on two sides of the connecting pin.
5. The multi-stage large-angle hydraulic damper assembly according to claim 4, wherein the rotary block is provided with an oil hole for injecting liquid damping grease into the damping cavity, and the liquid damping grease flows in the oil hole along with the rotation of the rotary disk.
6. The multi-stage large-angle hydraulic damper assembly according to claim 3, wherein damping structures are arranged on two sides of the driving plate and two sides of the rotating disc, the damping structure on one side is arranged in the groove, the damping structure on the other side is pressed and fixed through disc springs or elastic elements, the damping structure comprises a damping structure A positioned on two sides of the driving plate and a damping structure B positioned on two sides of the rotating disc, the damping structure A comprises a cover plate damping pad and an elastic damping pad, the cover plate damping pad is positioned between the fixed seat A and the driving plate, the elastic damping pad is positioned between the driving plate and the cover plate A, the damping structure B comprises a cover plate damping ring and an elastic damping ring, the cover plate damping ring is positioned between the cover plate B and the rotating disc, the elastic damping ring is positioned between the rotating disc and the fixed seat B, and disc springs or other elastic elements are arranged between the cover plate A and the elastic damping pad, and the fixed seat B and the elastic damping ring are pressed and fixed.
7. The multi-stage large angle hydraulic damper assembly of claim 1, wherein the damper springs are one or more sets of arcuate springs, the damper springs being in the form of large spring pockets of small springs, the large springs being of equal length or greater length than the small springs.
8. The multi-stage large-angle hydraulic damper assembly according to claim 3, wherein an O-shaped sealing ring is arranged between the cover plate B and the fixing seat B, and the seam allowance of the two ends of the connecting pin, which are matched with the cover plate B and the fixing seat B, is in an oblique angle mode.
9. The multi-stage large-angle hydraulic damper assembly according to claim 3, wherein the rotary disc and the dial are riveted on both sides of the hub by a stopper pin.
10. The multi-stage large-angle hydraulic damper assembly according to claim 2, wherein the anchor a is welded to the mounting plate.

Description

Multistage large-rotation-angle hydraulic shock absorber assembly Technical Field The invention relates to a shock absorber assembly, in particular to a multistage large-rotation-angle hydraulic shock absorber assembly. Background At present, the comfort requirements on automobiles are higher and higher, and the automobiles are required to be stable, vibration-free, noise-free and the like in the use process. Particularly, in idle working conditions, due to poor rotation uniformity of an engine at idle, high noise is often generated by impact between meshing gears in a transmission caused by instantaneous rotation speed fluctuation. In order to solve the problems, chinese patent CN217784117U discloses a large-rotation-angle multi-piece type torsion limiting damper, and through a structure that springs are connected in series two by two, the torsion angle of the damper is improved, and better damping performance is obtained. However, when the damper is used, if the torsion angle is too large, the spring is subjected to larger acting force, so that the damper is tired and even damaged too early, and the service life is influenced. Disclosure of Invention Aiming at the technical problems that the existing vehicle shock absorber is not ideal in shock absorption effect, components are worn fast, vehicle comfort level and service life are affected, and maintenance cost is increased, the invention provides the multistage large-rotation-angle hydraulic shock absorber assembly which can remarkably improve the shock absorption effect, reduce the components wear, prolong the service life and reduce the maintenance cost. The technical scheme is that the multistage large-rotation-angle hydraulic damper assembly comprises a large-rotation-angle damping system and a hydraulic damping system, wherein the large-rotation-angle damping system is fixedly connected with the hydraulic damping system, a mounting plate is fixedly arranged on the outer edge of the large-rotation-angle damping system, the large-rotation-angle damping system is provided with a damping spring, the damping spring is arranged in a lubricating cavity, lubricating grease is arranged in the lubricating cavity, the hydraulic damping system is provided with a damping cavity, and liquid damping grease is arranged in the damping cavity. The hydraulic vibration damping system has the advantages that the torsional rigidity of the head end of the transmission system is effectively reduced through the vibration damping spring, so that the inherent frequency of a certain order of the transmission system is reduced, the inherent vibration mode of the system is changed, resonance caused by the excitation of main harmonic of engine torque is avoided, the NVH characteristic of the whole vehicle is improved, the torsional damping of the transmission system is increased through liquid vibration damping grease of the hydraulic vibration damping system, the torsional resonance response amplitude is restrained, and transient torsional vibration caused by impact is damped. Preferably, the large-rotation-angle vibration reduction system is provided with a fixed seat A, a cover plate A and a driving plate, the vibration reduction spring is arranged between the fixed seat A and the cover plate A, a slide way is arranged on the outer side of the vibration reduction spring, the driving plate is arranged between the fixed seat A and the cover plate A and is positioned on the inner side of the vibration reduction spring, the vibration reduction spring is placed in the slide way, and lubricating grease is filled in the slide way, so that friction is effectively reduced, and the vibration reduction spring is protected. Preferably, the hydraulic vibration reduction system is provided with a fixed seat B, a cover plate B and a rotating disc, the cover plate B, the fixed seat B and the rotating disc jointly form the vibration reduction cavity, and the rotating disc is positioned between the fixed seat B and the cover plate B. Preferably, the hydraulic vibration reduction system is further provided with a limiting block and a rotating block, the rotating block is fixedly arranged on the rotating disc, the large-rotation-angle vibration reduction system and the hydraulic vibration reduction system are fixed together through a connecting pin, the limiting block is arranged on two sides of the connecting pin, limit rotation angles of the large-rotation-angle vibration reduction system are limited through the limiting block, and early damage caused by fatigue of vibration reduction springs in the large-rotation-angle vibration reduction system is prevented. Preferably, the rotating block is provided with an oil hole, liquid damping grease is injected into the damping cavity, and flows in the oil hole along with the rotation of the rotating disc, so that the torsional damping of the transmission system is increased, the torsional resonance response amplitude is restrained, and the transient t