Wheel hub automatic pinning system and control method, and wind power generator

A technology for wind turbines and hubs, applied in wind turbines, wind turbine combinations, wind turbine monitoring and other directions, can solve problems such as uncontrollable braking distances, large errors in manual judgment, and cumbersome matching process.

Active Publication Date: 2018-03-30
SANY ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 2) Due to the large error of manual judgment, the braking distance is uncontrollable, and it is difficult to accurately align the pins. It needs to be repeated many times to succeed. The process of pinning is cumbersome and inefficient

Method used

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  • Wheel hub automatic pinning system and control method, and wind power generator
  • Wheel hub automatic pinning system and control method, and wind power generator
  • Wheel hub automatic pinning system and control method, and wind power generator

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Embodiment Construction

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0040]It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0041] Below in conjunction with accompanying drawing, each embodiment of the present invention is described further:

[0042] At present, when the wind turbine is shut down for maintenance, it is necessary to lock the hub to prevent it from rotating. For this reason, the embodiment of the present...

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PUM

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Abstract

The invention discloses a wheel hub automatic countering system and control method and a wind power generator. The wheel hub automatic countering system comprises a controller, and a brake device, a countering proximity switch and an automatic locking pin which are connected with the controller. The countering proximity switch is used for detecting the positions of positioning pin holes arranged on a wheel hub, acquiring the positions of a countering initial pin hole and a countering target pin hole and also used for feeding back trigger signals corresponding to the positions of the countering initial pin hole and the countering target pin hole to the controller. The controller is used for confirming whether rotating speed of the wheel hub is reduced to the preset safe braking speed, countering rotating speed and final countering rotating speed and controlling the brake device and telescoping of the automatic locking pin according to the detected rotating speed of the wheel hub and the trigger signals fed back by the countering proximity switch. Countering and locking of the wheel hub can be automatically controlled and realized by application of the wheel hub automatic countering system and control method.

Description

technical field [0001] The invention relates to the field of wind power generation, in particular to an automatic hub pin alignment system and control method, and a wind power generator. Background technique [0002] At present, when the wind turbine needs to be maintained due to failure or overhaul, in order to ensure the safety of maintenance personnel, the rotating hub needs to be locked with a locking pin to prevent it from rotating. Existing doubly-fed asynchronous wind generators use high-speed shaft braking and manual alignment. For example: when the fan needs to be shut down for maintenance, the system controls the blades to retract, and under the action of the pneumatic brake, the hub starts to decelerate. When the rotation speed is lower than the safety pin rotation speed and the pin hole is about to turn to the pin shaft position, the hydraulic brake device acting on the high-speed shaft end is manually controlled to lock the hub, and then the pin shaft is manual...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D7/02F03D17/00F03D9/25
CPCY02E10/72
Inventor 李东汤彪
Owner SANY ELECTRIC CO LTD
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