Sliding yawing braking system for wind generating set

Abstract

The invention relates to a sliding yawing braking system for a wind generating set. Upper caliper bodies and lower caliper bodies of yawing calipers are connected onto a cabin bottom plate through high-strength bolts, are positioned and connected with each other through pins and are coupled with a yawing gear ring; an upper friction piece is mounted between the cabin bottom plate and the yawing gear ring; radial friction pieces are mounted between the upper caliper bodies and the yawing gear ring; piston assemblies, disc spring groups, guide rods and adjusting nuts are mounted in mounting holes of the lower caliper bodies; lower friction pieces are mounted between the piston assemblies and the yawing gear ring; the piston assemblies and the adjusting nuts are connected through the guide rods and the disc spring groups; and the disc spring groups are compressed to produce axial force through adjustment of the adjusting nuts, so that the lower friction pieces press the yawing gear ring tightly and produce friction torque together with the upper friction piece. The system can well keep the damping effect in yawing and non-yawing states of the wind generating set. The whole system supports the whole wind generating set and prevents the wind generating set from falling down from a tower tube.

Description

technical field [0001] The invention relates to a wind power generating set, in particular to a sliding type yaw brake system of the wind generating set. Background technique [0002] The sliding yaw braking system fixes the entire wind turbine on the top of the tower to keep the wind turbine from falling down; at the same time, it can keep the wind turbine in a stable direction against the wind during work, and provide sufficient damping during the yaw process to ensure Nacelle stability and wind accuracy. However, in the actual wind turbine industry, it is found that there are currently the following defects in the sliding yaw brake and system on the market: 1. The self-locking property of the adjusting bolt is poor, it is easy to loosen during operation, and there is no mechanical locking structure; 2. Difficult to maintain, The main reason is that it is difficult to replace the lower friction plate. The entire caliper needs to be disassembled for replacement, and each c...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above-mentioned defects of the existing sliding yaw braking system, the present invention provides a sliding yaw braking system for wind power generators. Problem: No need to disassemble the caliper, the adjusting bolt can be removed from the bottom of the caliper, and the old piston can be taken out from the bottom of the caliper to replace the new piston, which saves a lot of time and solves the problem of difficult operation and maintenance; a single caliper is small in size, And it is divided into upper and lower parts, light in weight, which solves the problem of heavy weight in handling and disassembling the caliper body

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