A tapered shock absorber with adjustable stiffness and its installation and adjustment method

Abstract

The invention discloses a cone shock absorber with an adjustable stiffness, which comprises a base, a stiffness regulating device, an elastic body and a height regulating device. The base is connected and fixed with a main rack; the stiffness regulating device is arranged in the base and is used for regulating the stiffness of the shock absorber according to an actual working condition of a generator so as to obtain the optimal shock absorbing effect and guarantee the generator to normally work; the elastic body is arranged between the stiffness regulating device and the height regulating device and is used for supporting the generator; after the vibration of the generator is buffered by the elastic body, an acting force transmitted onto the main rack is shown as a fatigue vibration load lower than the vibration of the generator by a plurality of orders of magnitudes, and thus, the elastic body takes a buffering and shock absorbing effect; and the height regulating device is connected and fixed to the elastic body and the generator base and is used for regulating the height of the generator in the vertical direction and ensuring the stability of the generator.

Description

technical field [0001] The invention relates to a shock absorber, in particular to a conical shock absorber which is mainly used in the buffering and vibration reduction of double-fed wind power generators, and can also be applied to locomotives, ships, engineering machinery and other equipment, belonging to The field of vibration reduction technology. Background technique [0002] Wind energy is a clean and sustainable energy. Compared with traditional energy sources, wind power generation does not depend on external energy sources; wind power generation has gradually become an important part of sustainable development strategies in many countries and is developing rapidly. With the development trend of large-scale and offshore wind power market in the world, megawatt-level high-power wind turbines will become the mainstream. Most fans are double-fed and semi-direct drive units, and their stability during operation is very important. [0003] When the wind turbine is norm...

AI Technical Summary

Problems solved by technology

The existing conical shock absorber can be adjusted by raising and lowering the adjusting nut to adjust the height position of the generator. With the continuous extension of the product's use time, the height and stiffness of the conical shock absorber will change, and the stiffness will change. It may cause the reduction of the vibration reduction effect of the system, and then affect the normal operation of the generator

In addition, with the different models and different loads of this kind of conical shock absorber, there will be more and more types, and the workload of management will be large.

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