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Wind power generator gearbox damper and damping protection method thereof

A technology for wind turbines and gearboxes, which is applied to wind turbine components, wind turbines, shock absorbers, etc., to achieve the effect of good vibration reduction and increased service life

Active Publication Date: 2014-10-15
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a wind turbine gearbox shock absorber and its vibration reduction protection method for the defects in the prior art. Under certain circumstances, it can avoid the problems of its own rubber powder dropping, cracking, and even the deformation of the elastic body partition, and the rigidity is seriously reduced. Causes damage to the coupling connected to the output shaft of the gearbox, causing damage to the output value of the gearbox and the input shaft of the generator

Method used

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  • Wind power generator gearbox damper and damping protection method thereof
  • Wind power generator gearbox damper and damping protection method thereof
  • Wind power generator gearbox damper and damping protection method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1: as figure 2 As shown, a wind turbine gearbox shock absorber 1 includes a main frame, and the main frame includes support columns 6 on both sides, a backing plate 7 arranged at one end of the support columns 6 on both sides, and a backing plate 7 arranged on the The beam 8 at the other end of the support column 6 on both sides; the upper laminated spring 9 and the lower laminated spring 10, which are respectively arranged on the opposite surfaces of the beam 8 and the backing plate 7; the screw rod 4 passes through the The crossbeam 8, the support columns 6 on both sides, the backing plate 7 and the generator set main frame 5 are connected to the generator set main frame 5, and the upper laminated spring 9 and the lower laminated spring 10 are both opened. There is a cavity 11, and the wind power generator gearbox shock absorber 1 also includes an upper buffer pad 12 and a lower buffer pad 13, which are respectively arranged on the opposite surfaces of ...

Embodiment 2

[0056] Embodiment 2: as Figure 7 As shown, compared with Embodiment 1, the wind turbine gearbox damper in this embodiment is different in that: the cavities 11 of the upper laminated spring 9 and the lower laminated spring 10 are blind holes One end of the upper buffer pad 12 and the lower buffer pad 13 is respectively arranged on the opposite surface of the crossbeam 8 and the backing plate 7 by screws, and the other end is connected with the hollow space of the upper laminated spring and the lower laminated spring respectively. There is a gap 20 at the bottom of the cavity 11, and the gap 20 here can also be designed according to actual working conditions. In this way, the rigidity of the laminated spring is relatively large, which is suitable for units or working conditions with relatively large rated loads.

[0057] When the load transmitted by the torque arm of the gearbox ≤ the rated load, there is no gap between the top plate 17 of the upper buffer pad and the bottom ...

Embodiment 3

[0062] Embodiment 3: as Figure 8 As shown, compared with Embodiment 2, the wind power generator gearbox shock absorber in this embodiment differs in that: the upper laminated spring 9 and the lower laminated spring 10 are both tapered, and the upper laminated spring 9 The dividing plate 14 in the layer spring 9 and the lower layer spring 10 is a tapered spacer. This structure enables the shock absorber to obtain greater lateral stiffness while having greater vertical stiffness, thereby providing lateral stability of the shock absorber.

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Abstract

The invention discloses a wind power generator gearbox damper and a damping protection method thereof. The damper comprises a main frame, an upper laminated spring, a lower laminated spring, an upper crash pad and a lower crash pad; the main frame comprises struts at two sides, a cushion plate and a crossbeam; the main frame is connected onto a main rack of a power generator by enabling screws to penetrate through the crossbeam, the struts at the two sides, the cushion plate and the main rack of the power generator; the upper laminated spring and the lower laminated spring are respectively provided with a cavity; the upper crash pad and the lower crash pad are respectively arranged on the opposite surfaces of the crossbeam and the cushion plate and are respectively positioned in cavities of the upper laminated spring and the lower laminated spring; a gearbox torsion arm is arranged between the upper laminated spring and the lower laminated spring and is in contact with the same. The wind power generator gearbox damper is good in damping effect and long in service life, and avoids the problems that the output shaft of a gearbox and an input shaft of the power generator are damaged due to the breakage of a coupler connected with the gearbox caused by the damage of the gearbox.

Description

technical field [0001] The present invention relates to a shock absorber and its vibration reduction protection method, in particular to a wind power generator gearbox shock absorber and its vibration reduction protection method. The shock absorber in the present invention is generally applied to double-fed wind power generators It can also be applied to the vibration isolation system of rolling stock, ships, construction machinery and other equipment. 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 ...

Claims

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Application Information

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IPC IPC(8): F03D11/02F16F7/00
CPCY02E10/722Y02E10/72
Inventor 胡伟辉林胜杨超岳涛苏泽涛刘永秦中正
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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