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Guide-rail-type mass damper

A technology of mass damper and damper, which is applied in the field of damper, can solve the problems of large occupied space and achieve the effect of small occupied space, compact structure and flexible installation position

Active Publication Date: 2019-12-10
SHANGHAI ELECTRIC WIND POWER GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a guide rail type mass damper in order to overcome the defect that the single pendulum type mass damper occupies a large space in the prior art

Method used

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  • Guide-rail-type mass damper
  • Guide-rail-type mass damper
  • Guide-rail-type mass damper

Examples

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Embodiment Construction

[0065] The present invention will be further described below by means of specific examples, but the present invention is not limited to the scope of the following examples.

[0066] like Figure 1-7 As shown, a guide rail type mass damper of the present invention includes an arc guide rail assembly 1, a roller assembly 2, and a mass block assembly 4, and the center of the arc track of the arc guide rail assembly 1 is located above the arc track , the roller assembly 2 can freely roll on the circular arc track, and the mass block assembly 4 is connected below the roller assembly 2; wherein, the arc guide rail assembly 1 is installed in the cabin on the tower 8, or the arc guide rail The assembly 1 is installed in the tower 8 and can rotate in the tower 8 so that the direction of the circular arc track coincides with the vibration direction of the tower 8 .

[0067] When the rail-type mass damper of the present invention is installed in the nacelle on the tower 8, since the nac...

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Abstract

The invention discloses a guide-rail-type mass damper. The mass damper comprises an arc guide rail assembly, an idler wheel assembly and a mass block assembly. The circle center of an arc rail of thearc guide rail assembly is located on the arc rail, the idler wheel assembly can freely roll on the arc rail, and the mass block assembly is connected to the lower portion of the idler wheel assembly;the arc guide rail assembly is installed in a cabin of a tower, or the arc guide rail assembly is installed in the tower and can rotate in the tower, so that the direction of the arc rail and the vibration direction of the tower coincide. According to the guide-rail-type mass damper, when the unit tower vibrates, the mass block assembly on the damper moves in the direction opposite to the vibration direction on the arc rail of the arc guide rail assembly through the idler wheel assembly, a long swing wire rope does not need to be used, the problem is solved that a single-swing-type mass damper wire rope occupies the space, and the guide-rail-type mass damper has the advantages of being compact in structure, small in occupation space, flexible in installation position and the like.

Description

technical field [0001] The invention relates to the technical field of dampers, in particular to a guide rail type mass damper. Background technique [0002] Wind turbines are usually equipped with heavy structures such as nacelles and impellers on the upper part of the tower tens of meters high, which has the characteristics of high center of gravity, low tower rigidity, and low resonance frequency. At present, with the development of wind power generation to the sea and large-capacity wind turbines, the application of high-rise towers and flexible towers is becoming more and more extensive. As the height of the tower increases, the vibration problem of the tower becomes more prominent. During the operation of wind turbines, tower vibration will occur; and as the wind speed increases, the vibration of the tower will become more and more serious. Long-term vibration will have many adverse effects on the operation of wind turbines, such as: increased wear of transmission pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/22F16F15/28F03D80/00
CPCF16F15/22F16F15/28F03D80/00Y02E10/72
Inventor 王康世曹广启宋志奇赵大文
Owner SHANGHAI ELECTRIC WIND POWER GRP CO LTD
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