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Flexible wind wheel locking device for braking system of anti-typhoon wind generating set

A technology for wind turbines and braking systems, which is applied to wind turbines, wind power generation, engines, etc., can solve the problems of large load of the whole unit, reduction of the load of the wind wheel and the whole machine, and reduce the design difficulty of wind turbines, etc., to achieve The effect of improving reliability and high reliability

Pending Publication Date: 2020-09-01
GUANGDONG MINGYANG WIND POWER IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art, aiming at the problem that the existing anti-typhoon type wind power generating set locks or completely releases the wind wheel, resulting in a large load on the whole set, and proposes a typhoon-resistant wind power generating set The flexible wind wheel locking device of the braking system adopts a flexible wind wheel locking design scheme, which allows the wind wheel to swing within a certain angle and provides a restoring force to the wind wheel. The greater the angle deviates from the positive "Y" position, the greater the restoring force , can greatly reduce the load of the wind turbine and the whole machine, and greatly reduce the difficulty of the overall design of the wind turbine

Method used

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  • Flexible wind wheel locking device for braking system of anti-typhoon wind generating set
  • Flexible wind wheel locking device for braking system of anti-typhoon wind generating set
  • Flexible wind wheel locking device for braking system of anti-typhoon wind generating set

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Embodiment 1

[0027] The flexible wind wheel locking device provided in this embodiment is mainly used for the braking system of typhoon-resistant wind power generating sets, such as figure 1As shown, the brake system includes a wind wheel locking disc 6, a gearbox front end flange 3, and a wind wheel locking pin assembly 2, and the wind wheel locking disc 6 passes through the hub 8 of the wind wheel (not shown in the figure). Bolt connection and fixation, the gearbox front end flange 3 is a part of the gearbox of the wind power generating set, which is respectively connected with the generator (not shown in the figure) of the wind power generating set and the nacelle shell 7 through bolt connection and fixing, the wind wheel The locking pin assembly 2 includes a wind wheel locking pin 201 and a driving device (not shown in the figure) for driving the wind wheel locking pin 201 to extend or retract. When the wind wheel needs to be locked, the wind wheel locking disc 6 The locking hole on th...

Embodiment 2

[0038] see Figure 5 As shown, the difference from Embodiment 1 is that this embodiment only adopts one wind wheel locking pin assembly 2, and the shell of the wind wheel locking pin assembly 2 is connected with one end of the swing trolley 1, and is fixed as a whole. Similarly, two The flexible wind wheel locking units 5 are symmetrically distributed on the left and right sides of the front flange 3 of the gearbox, and the wire rope group 501 of one of the flexible wind wheel locking units 5 is connected to the shell of the wind wheel locking pin assembly 2, while the other flexible The wire rope group 501 of the wind wheel locking unit 5 is connected to the other end of the swing trolley 1 .

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Abstract

The invention discloses a flexible wind wheel locking device for a braking system of an anti-typhoon wind generating set. The flexible wind wheel locking device adopts a flexible wind wheel locking design scheme. The flexible wind wheel locking device comprises a swinging trolley and two flexible wind wheel locking units; the two flexible wind wheel locking units are symmetrically distributed on the left side and right side of a front flange of a gearbox and connected with the left end and the right end of the swinging trolley; and the swinging trolley is integrated with a housing of a wind wheel locking pin assembly of the braking system, and can move in an arc guide slot hole of the front flange of the gearbox to drive a wire rope group on the left side or the right side to be tightened,and at the same time to drive a guide post of the flexible wind wheel locking unit on one side to be pulled out, so that a spring sleeving the guide post is compressed to provide restoring force to awind wheel. According to the invention, the wind wheel is allowed to swing within a certain angle, and the greater the angle deviation from the positive Y position is, the greater the restoring forceis, so that the load of the wind wheel and the whole machine is greatly reduced, and the overall design difficulty of the wind generating set is greatly reduced.

Description

technical field [0001] The present invention relates to the technical field of braking system design of typhoon-resistant wind power generating sets, in particular to a flexible wind wheel locking device used in the braking system of typhoon-resistant wind power generating sets. The wheel can only swing within a certain angle range along the transmission axis, and provide suitable torsional rigidity. Background technique [0002] It is well known in the industry that for megawatt-class three-blade typhoon-resistant wind turbines, pitch control is generally used to feather the three blades, and the wind wheel is free to idle to avoid excessive load on the whole machine. For the three-bladed anti-typhoon wind turbine, after feathering the three blades, the wind rotor needs to be locked at the horizontal position of the blades, so that the load on the wind turbine is minimized. When the wind rotor rotates, the wind load on the wind rotor changes at different angle positions. W...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D80/00
CPCF03D80/00F05B2260/31Y02E10/72
Inventor 霍仕环
Owner GUANGDONG MINGYANG WIND POWER IND GRP CO LTD
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