Flywheel shock absorber integrated with radial double shock absorbers

Abstract

The invention discloses a flywheel shock absorber integrated with radial double shock absorbers. The flywheel shock absorber comprises a single-mass flywheel sub-assembly and a flywheel shock absorbersub-assembly, the flywheel shock absorber sub-assembly comprises an outer shock absorber and an inner shock absorber which are connected in series, the outer shock absorber and the inner shock absorber work at the same time in the shock absorption process, the total rotation angle of the flywheel shock absorber sub-assembly is equal to the sum of the rotation angle of the inner shock absorber andthe rotation angle of the outer shock absorber, the flywheel shock absorber sub-assembly transmits engine torque into a transmission through a spline shaft sleeve, the end face of a limiting angle ofthe inner shock absorption makes contact with the end face of a driving angle to transmit torque, first-level rigidity of the flywheel shock absorber is generated, the torque continues to be increased, and a shaft sleeve plate further compresses an outer shock absorption spring to form second-level rigidity. The flywheel shock absorber has the advantages that the inner shock absorber is additionally arranged, the torque bearing capacity of the first-stage shock absorption rigidity of the flywheel shock absorber is improved, the low-rigidity characteristic of the first-stage shock absorption rigidity can cover a larger torque range, and more ideal shock absorption performance is brought.

Description

technical field [0001] The invention relates to a torsional shock absorber matched with a hybrid electric vehicle and an internal combustion engine vehicle, in particular to a flywheel shock absorber integrating radial double shock absorbers. Background technique [0002] There are different driving conditions during the running of the car, such as idling conditions, driving conditions, and power generation conditions. Different working conditions require their corresponding vibration reduction frequencies. With the continuous improvement of driving comfort requirements during the running of automobiles and the continuous development of hybrid vehicles, it is especially necessary to match a high-performance shock absorber for hybrid vehicles. Although the dual-mass flywheel has good damping performance as a whole, its structure does not have an internal damping structure with low stiffness and adjustable damping, which cannot solve the vibration of the engine under specific ...

AI Technical Summary

Problems solved by technology

Although the dual-mass flywheel has good damping performance as a whole, its structure does not have an internal damping structure with low stiffness and adjustable damping, which cannot solve the vibration of the engine under specific working conditions

[0003] Chinese patent "ZL201921991011.5 Flywheel damper with integrated pre-shock absorber" discloses a flywheel damper structure with integrated pre-shock absorber. Application requirements of high torque and low stiffness

[0004] Chinese patent "ZL201520157151.8 flywheel shock absorber", the inner shock absorber and the outer shock absorber are in parallel connection structure, parallel operation helps to increase the ultimate torque, but in the application of relatively small torque such as passenger cars Under such circumstances, the rotation angle of parallel operation cannot be enlarged due to structural limitations, and the corresponding vibration damping performance will be relatively limited.

At the same time, due to structural limitations, the patented inner shock absorber can only be equipped with four sets of springs

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