Damping shock absorber

Abstract

The invention discloses a damping shock absorber which comprises a shell (1), inertia bodies, inertia-variable bodies and elastic components. The inertia bodies are arranged in an inner cavity of the shell (1), and damping media are filled among the inertia bodies and the shell (1); the inertia-variable bodies are arranged on the inertia bodies, are peripherally uniformly distributed and have degrees of radial movement freedom on the inertia bodies; the elastic components are arranged among the various inertia bodies and the inertia-variable bodies, and generate inwards resetting acting force when the inertia-variable bodies move outwardly. The damping shock absorber has the advantages that inertia of the shock absorber can change by the aid of centrifugal force generated when an engine rotates, so that torsional vibration of a shaft system can be dynamically attenuated by the shock absorber via the change of the inertia of the shock absorber at different rotational speeds, and reliable running of the engine can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a damping shock absorber for reducing torsional vibration of engine shafting. Background technique [0002] During the working process of the engine, under the action of the combustion pressure in the cylinder, torsional vibration will be formed in the engine shafting, which is called engine torsional vibration. [0003] The shock absorber is one of the key components of the engine. Its main function is to reduce the torsional vibration of the engine shafting, ensure the safe operation of the engine, and avoid shafting fracture caused by excessive shear stress of the shafting system. [0004] The silicone oil shock absorber is a damping type shock absorber, which is mainly composed of an inner inertia ring and an outer casing. The center of the casing is a through hole inserted into the crankshaft of the engine. A circle of cavities is formed around the casing and the cover plate...

AI Technical Summary

Problems solved by technology

However, the inertia ring of the existing silicone oil shock absorber is a single solid part, and its inertia is constant. If the inertia is designed to be large, the vibration damping performance at low speeds will be poor. On the contrary, if the inertia is designed to be small, The vibration damping performance is poor at high speed, because the inertia of the shock absorber cannot change with the engine speed, so it cannot take into account the vibration damping effect under high speed and low speed conditions at the same time

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