Torsional damper and mounting method thereof

Abstract

A torsional damper comprises a shell. An annular ring is arranged in the shell, a damper unit is arranged in the annular cavity and includes an inertia ring, at least two accommodating cavities are arranged in the inertia ring in symmetry, and multiple vibrators are stored in the accommodating cavities. The invention further provides a mounting method of the torsional damper. Through the design ofthe damper unit, torsional vibration of an engine crankshaft can be effectively reduced, and the torsional damper is compact in structure and convenient in mounting; in addition, compared with traditional damping measures merely using inertial blocks, the mounting method has the advantages that the damper unit can effectively reduce overall weight of belt pulleys, and the damper unit has the corresponding advantage of rapidness.

Description

technical field [0001] The invention relates to the field of engine crankshaft damping, in particular to a torsional damper and an installation method thereof. Background technique [0002] The engine of a car converts the chemical energy of oil combustion into mechanical energy, which drives the crankshaft to rotate. There is strong vibration and noise during the operation of the crankshaft, and a large part of the vibration of the crankshaft comes from the shock vibration of oil combustion in the engine. The vibration of automobiles has always been one of the factors restricting the development of automobiles and technological breakthroughs. The vibration of the engine not only greatly damages the service life of the crankshaft shafting components, but also reduces the comfort of the passengers. With the development of the automobile manufacturing industry, people's requirements for the comfort of the car are getting higher and higher. The process of engine vibration is...

AI Technical Summary

Problems solved by technology

However, during the operation of the crankshaft, the speed will have a large change, that is, the vibration frequency has a wide range. It is difficult to completely avoid the resonance frequency by adding an inertia ring. Once the pulley with the inertia ring resonates, the generated The destructive power is greater. In addition, the mass of the pulley with the added inertia ring is relatively large, which will cause negative effects such as inconvenience in movement.

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