Measurement and adjustment method of brake disc yaw The new winch adopts disc brakes. The yaw precision of the winch brake disc is very high. The control is within 0.5mm. The brake discs of 2m or more are usually pre-assembled in the factory. When it is assembled and installed on site, find the assembly mark of the brake disc and the roller. First connect the positioning hole (refined bolt) or the reaming hole, then connect the remaining high-strength bolts, and tighten them evenly with a torque wrench. The torque is typically 1400 Nm. After cleaning the oil on the brake disc, use the dial indicator and the magnetic watch holder to be fixed on the disc-shaped sluice pile, press the meter head on the side of the brake disc, slowly rotate the drum, and measure the yaw error of the entire circumference of the brake disc. If the local super standard, the adjustment process should be carried out. The method of yaw adjustment: (1) sluice-running through the test operation process, the brake sluice of the disc brake disc, control the temperature rise of the brake disc, eliminate the local stress, and re-tighten the brake bolt of the brake disc; (2) Local heating with oxygen acetylene baking handle, control the temperature to detect and analyze the partial yaw over-excession section, behind the corresponding ram's positive yaw position, the root of the ram and the drum is connected with a baking handle Heating, controlling the heating area and temperature according to the amount of yaw. Then let it slowly cool naturally in the air. In the case where the yaw is over 1 mm, it can be adjusted to within 0.5 mm of the specified value range. The application of scientific methods to renovate the mine main hoist winch ensured safety and quality, shortened the mine shutdown and repair time, and achieved significant economic and social benefits. Flush Doors,Wooden Flush Door,Pvc Flush Door,Flush Sliding Door Foshan QI'AN Fireproof Shutter Doors Co., Ltd , https://www.fsqianfiredoor.com