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Yaw brake mechanism of wind driven generator

A wind turbine, yaw braking technology, applied in wind turbines, wind turbine control, wind turbine monitoring and other directions, can solve problems such as not being able to be discovered in time, leakage, etc.

Inactive Publication Date: 2017-12-01
JIANGSHAN XIANJIN ELECTRICAL & MECHANICAL TECH SERVICES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a yaw brake mechanism of a wind power generator that can be detected in time when the seal ring fails and leaks and can effectively prevent hydraulic oil from leaking to the brake ring, which solves the problem of the existing wind power generator yaw control mechanism. Problems that cannot be detected in time when the actuator leaks

Method used

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  • Yaw brake mechanism of wind driven generator
  • Yaw brake mechanism of wind driven generator
  • Yaw brake mechanism of wind driven generator

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Experimental program
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Effect test

Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] see figure 1 , a wind turbine yaw brake mechanism, including a yaw bearing 1, a brake ring 11 arranged on the yaw bearing and several brake units 3.

[0021] There are 6 brake units 3. Three of the six brake units 3 are arranged on the front side of the brake ring 11 , and the other three brake units 3 are arranged on the rear side of the brake ring 11 .

[0022] see figure 2 , The brake unit 3 includes a hydraulic brake 31 and a spring brake 32 . The hydraulic brake 31 is provided with a leakage detection mechanism 4 and a dynamic sealing ring 5 .

[0023] The hydraulic brake 31 includes a brake cylinder 311 , a piston 312 and a friction plate 313 of a hydraulic brake part. The hydraulic braking part friction plate 313 includes a mounting part 3131 and a friction part 3132 . The friction part 3132 is connected to one side of the mounting ...

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Abstract

The invention relates to a wind driven generator. A yaw brake mechanism of the wind driven generator comprises a brake ring and a brake unit, wherein the brake unit comprises a hydraulic brake and a spring brake; the hydraulic brake comprises a dynamic sealing ring, a brake oil cylinder, a piston, a hydraulic brake part friction plate and a leakage detecting mechanism; the spring brake comprises a spring brake part friction plate and a spring; the leakage detecting mechanism comprises a ring-shaped oil ditch formed in the brake oil cylinder, an oil tank and a detecting mechanism; the dynamic sealing ring comprises an air inflation sealing ring and an air source which sleeve the piston; and the ring-shaped oil ditch is formed between a static sealing ring and the air inflation sealing ring. The invention provides a yaw brake mechanism, which can timely find leakage once a sealing ring loses efficacy and leaks and can effectively prevent hydraulic oil from leaking onto a brake ring after leakage is generated, of the wind driven generator. The yaw brake mechanism solves the problem that leakage cannot be timely found when an existing yaw brake mechanism of the wind driven generator generates leakage.

Description

technical field [0001] The invention relates to a wind power generator, in particular to a yaw braking mechanism of a wind power generator. Background technique [0002] Some wind turbines use the yaw brake mechanism to adjust and fix the direction of the blades when they are in use, so that the wind turbines can face the wind accurately. When the wind turbine needs to yaw, the damping torque can make the yaw process more stable. The existing yaw brake mechanism provides damping torque entirely by hydraulic brake and residual pressure. When the sealing ring fails to cause leakage, it cannot be found in time, and it cannot be found until it cannot be used. Contents of the invention [0003] The invention provides a yaw brake mechanism of a wind power generator that can be detected in time when the seal ring fails and leaks and can effectively prevent hydraulic oil from leaking to the brake ring, which solves the problem of the existing wind power generator yaw control mec...

Claims

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Application Information

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IPC IPC(8): F03D7/02F03D80/70F03D17/00F03D80/55F16D55/228F16D65/00F16D65/097F16D65/14F16D66/00
CPCF03D7/0204F03D7/0244F03D7/0248F03D17/00F03D80/55F03D80/70F05B2270/329F16D55/228F16D65/0031F16D65/0037F16D65/097F16D65/14F16D66/00F16D2121/04F16D2121/14F16D2123/00F16D2125/08F16D2125/582Y02E10/72
Inventor 危金兰
Owner JIANGSHAN XIANJIN ELECTRICAL & MECHANICAL TECH SERVICES CO LTD
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