Silicone-oil torsional vibration damper with high rigidity and high damping

Abstract

The invention discloses a silicone-oil torsional vibration damper with high rigidity and high damping. The silicone-oil torsional vibration damper comprises a shell, an inertia ring and a side cover which are concentrically arranged, wherein the shell comprises an inner shell wall, an outer shell wall and a side shell wall which are concentrically arranged; two sides of the outer shell wall are respectively connected with two sides of the inner shell wall through the side shell wall and the side cover; silicone oil is injected in a gap between the inertia ring which is arranged in an inner cavity defined by the side cover, the outer shell wall, the side shell wall and the inner shell wall in a sleeving and sliding manner, and the inner cavity; a plurality of tooth slot matches are arranged between a side cover ring surface and the inner wall of the side cover, between a top ring surface and the inner wall of the outer shell wall, and between the side shell ring surface and the inner wall of the side shell wall, in the inertia ring, so that the fluid area between the inertia ring and the inner cavity which relatively move, is enlarged; therefore, the rigidity of the silicone oil and the damping of the silicone oil are improved. Through the adoption of the design of the silicone-oil torsional vibration damper disclosed by the invention, the rigidity of the silicone oil and the damping of the silicone oil can be improved by 1.5-2 times under the premise that the external structure of a conventional vibration damper and the viscosity grade of silicone oil are not changed, so that the vibration damper meets higher requirements for the torsional vibration of shaft systems, and therefore, the torsional vibration damper meets higher requirements for power per liter and detonation pressure.

Description

technical field [0001] The invention relates to a silicone oil shock absorber, which belongs to the technical field of engines, in particular to a high-rigidity and high-damping silicone oil torsional vibration shock absorber, which is specifically applicable to the premise that the appearance structure of the traditional shock absorber and the viscosity level of silicone oil can not be changed. Under this condition, the stiffness and damping of silicone oil are greatly improved. Background technique [0002] Silicon oil shock absorber is a kind of engine shock absorber, which mainly plays a role in reducing the torsional vibration of the crankshaft system in the engine. The traditional silicone oil shock absorber generally includes an inertia ring, a side cover, a shell, a bushing and silicone oil. Among them, the shell made of steel plate is connected to the crankshaft, and the side cover and the shock absorber shell form a closed cavity. The inertia ring is slidingly sle...

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Problems solved by technology

Although the invention can improve the stiffness and damping of the shock absorber under the same conditions to a certain extent by designing the section of the inertia ring as a trapezoid, it still cannot satisfy the requirement of not changing the appearance structure of the traditional shock absorber, adding the same Under the premise of high-grade viscosity silicone oil, it is necessary to increase the stiffness and damping of the shock absorber silicone oil by 1.5–2 times

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