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Sliding friction sheet replacement method and device of wind driven generator yaw system

A wind turbine, sliding friction technology, applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve the complex technology and safety of the sliding friction plate of the yaw system, the wear of the sliding friction plate of the yaw system, and no patent documents have been found. Report and other issues to achieve the effect of saving economic costs, ensuring safety, and saving time and costs

Active Publication Date: 2012-12-19
CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the wind turbine is running, due to various complicated factors, the sliding friction plate of the yaw system in actual operation usually wears out too quickly and fails prematurely, so it is necessary to replace the sliding friction plate of the yaw system
Since the sliding friction plate of the yaw system is pressed tightly under the wind turbine weighing tens of tons, and the wind turbine is at a height of tens of meters, the replacement of the sliding friction plate of the yaw system of the wind turbine involves Complex technical and security issues
Moreover, wind turbines generally operate in remote areas, and using large cranes to replace them will incur a lot of costs
[0004] Through a preliminary search of domestic patent literature, no patent literature reports on related technologies were found

Method used

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  • Sliding friction sheet replacement method and device of wind driven generator yaw system
  • Sliding friction sheet replacement method and device of wind driven generator yaw system

Examples

Experimental program
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Effect test

Embodiment 1

[0017] attached figure 1 A specific implementation method and device for replacing the upper friction plate 5 and the lower friction plate 11 mentioned in the present invention are schematically shown. It can be seen from the accompanying drawings that the wind turbine yaw system includes a yaw ring gear 2 fixed on the upper flange 1 of the wind turbine tower, the two are connected by bolts, and the yaw system further includes bonding The upper friction plate 5 in the friction plate mounting plate 6, the upper and lower surfaces of the friction plate mounting plate 6 are respectively in contact with the lower surface of the nacelle bottom plate 3 of the wind-driven generator and the upper surface of the yaw caliper 9, through the connecting bolt 10 The above three are connected and tightened, and the yaw system further includes a side friction plate 7 fixed on the side of the yaw caliper 9 with a fastening screw 8 and placed in the cavity of the yaw caliper 9 through a compres...

Embodiment 2

[0020] attached figure 2 Another embodiment of the present invention is schematically shown, which is a specific implementation method and device for replacing the upper friction plate 5 and the lower friction plate 11 . It can be seen from the accompanying drawings that the basic structure of Embodiment 1 is the same, except that the adjustment bolts of the lower friction plate 11 are different. The adjustment bolts are hollow bolts 18, and there is a through hole in the center of the hollow bolt 18. A round iron rod 19 is inserted inside.

[0021] When replacing the lower friction plate 11 and side friction plate 7 of the yaw system (see attached figure 2). Replace a bolt connecting the yaw ring gear 2 and the upper flange 1 of the tower near the yaw caliper 9 with a custom-made screw 22, one end of which is screwed into the threaded hole of the yaw ring gear 2, and the other end is screwed with a Nut 21; a custom-made perforated supporting plate 20 is placed on the upp...

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Abstract

The invention discloses a sliding friction sheet replacement method and device of a wind driven generator yaw system. Through screwing the yaw gear ring of the wind driven generator and a flange linkage bolt on a tower cylinder, the yaw gear ring and the flange linkage bolt are in contact with cabin base plates of the wind driven generator on the yaw gear ring; as the continuously lifting of the bolt, the cabin of the wind driven generator is hoisted at the part; an upper friction sheet which is pressed tightly between the cabin of the wind driven generator and the yaw gear ring is loose, and a friction sheet mounting plate can be drawn out for replacement; a yaw gear ring close to the part of yaw clamping calipers and the flange linkage bolt on a tower cylinder are replaced into a screw rod; a thread at the head part of the screw rod is screwed into a thread of the yaw gear ring is fixed in the thread; a customized support plate is fixed on the tail part of the screw rod by a nut; one part of the support plate is fixed on the lower part of the yaw clamping calipers so as to bear the yaw clamping calipers; as the rotation downward of the nut below the support plate, the yaw clamping calipers decrease along with the nut through the support plate, after the yaw clamping calipers decrease to enough space, a lower friction sheet in the yaw clamping calipers and a lower friction sheet at the side surface of the yaw clamping calipers are replaced.

Description

technical field [0001] The invention relates to a method and device for replacing components of a wind power generator, in particular to a method for replacing sliding friction plates of a sliding friction yaw system of a wind power generator, and various replacement devices used in the method. Background technique [0002] The yaw system of the wind turbine is a very important part of the wind turbine. Its function in the wind turbine is to rotate the nacelle so that the wind rotor of the wind turbine is always in line with the wind direction to ensure the maximum power generation of the wind turbine. ability. The yaw system includes three parts: yaw detection and control part, yaw mechanism, and twisted cable protection device. The yaw mechanism is composed of yaw power source, yaw transmission device, yaw actuator and braking device. [0003] There are different types of wind turbine yaw execution structures to realize the yaw rotation of the wind turbine. If a slewing b...

Claims

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Application Information

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IPC IPC(8): B23P11/00B25B27/00
Inventor 凡增辉晏红文刘高辉熊维军黄睿
Owner CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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