Eddy current crank arm type buffer

Abstract

The invention discloses an eddy current crank arm type buffer. The eddy current crank arm type buffer comprises a rocker arm, a connecting rod is hinged to the rocker arm, the eddy current crank arm type buffer is characterized by further comprising a support plate, a magnet and a conductor, wherein the support plate is provided with a fixing part for fixing, the support plate and the rocker arm can rotate around a shaft or an axis, one of the magnet and the conductor is installed on the support plate, the other one of the magnet and the conductor is installed on the rocker arm, the positionsof the magnet and the conductor are opposite, and rotation of the support plate and the rocker arm around the shaft or the axis can drive the magnet and the conductor to do magnetic line cutting motion to generate damping force. The buffer is simple and durable in structure, obvious in buffer effect, free of working fluid and free of liquid leakage, and has no need of a power supply when working in a magnetic field; and particularly, when the buffer is applied to an electric shovel, the maintenance cost of the electric shovel can be reduced, the fault time of the electric shovel is shortened,and greater economic benefits are created for mine production.

Description

technical field [0001] The invention relates to the technical field of buffers, in particular to a crank arm type buffer utilizing the eddy current effect. Background technique [0002] Shock absorbers are often used to reduce the impact force caused by vibration between various components. Traditional buffer devices include mechanical and hydraulic. The mechanical buffer needs to adjust the preload of the spring frequently. If it is not adjusted properly, the buffer will be too tight or too loose; while the hydraulic buffer has problems of leakage and sealing. These two types of buffers have high requirements on the structure and materials in contact with each other, and the fatigue strength and durability of the structures and materials are often difficult to meet the requirements, resulting in poor buffering effect of the buffer device and low service life. and high replacement costs. [0003] When the above-mentioned mechanical or hydraulic buffer device is applied to...

AI Technical Summary

Problems solved by technology

[0005] Considering the structure of the above electromagnetic damper and the damping strength it can provide, it is not suitable for some industrial buffers

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