Jiaozuo brake

What is the reason for the slow response of hydraulic brakes in crane operation? Large lifting equipment requires the use of brakes. Brakes are a type of braking device, whose main function is to ensure good control of work and avoid danger. But we know that, taking bicycles as an example, as they are used for a long time, the braking device on the brakes will wear out, causing delayed braking or slow response, which can become very dangerous. So what should be done when encountering slow response from the brakes?

There are generally several reasons for slow brake response:

(1) Excessive free travel of the brake wheel and brake.

2) Lack of brake fluid in the brake master cylinder, or blockage of the compensation hole, aging, swelling, deformation, or overturning of the master cylinder cup and ring.

(3) The piston and cylinder body of the brake master cylinder are excessively worn and loose, resulting in oil leakage. The sealing of the return valve is poor, and the tension spring of the outlet valve is broken.

4) The brake wheel cylinder cup is aged, swollen, and the piston is stuck, resulting in excessive wear and loose oil leakage between the wheel cylinder piston and the cylinder body.

(5) Severe wear of brake shoes, excessive or reversed brake clearance.

6) The brake drum is out of round, grooved or worn too thin, the brake shoe surface has oil, burns and hardens, and rivets are exposed

The brake of the crane must be well maintained. Now, Xinxiang Zhongrui Lifting Machinery Co., Ltd. will introduce it to us.

Before the operation of the crane, the brake should be checked for the sensitivity of the connecting rods and pins at each movable contact point, whether there is any sign of loosening or falling of the bolts, whether the wear of the brake pads has reached the invalid standard, whether the spacing between the two pads and the outer surface of the brake wheel is equal when the brake pads are open, whether there is any sign of loosening between the brake wheel and the transmission, whether the interference between the shaft and the hole is met, and whether there is any sign of loosening when tightening the bolts, Is there any oil stains on the surface of the brake wheel, and is there any significant scratches or signs of falling on the surface of the brake wheel. Is there any jamming or wear at the hinge, and is the hydraulic system normal.

Large cranes are used in the metallurgical industry to transport molten steel for smelting furnaces. There are generally five main mechanisms: main lifting, auxiliary lifting, crane, main trolley, and auxiliary trolley mechanisms. The motor is installed on the high-speed shaft, and the drum is installed on the low-speed shaft. The high-speed shaft and low-speed shaft are connected together through a reducer. The traditional lifting mechanism brake is set on the high-speed shaft brake. In this case, if the high-speed shaft and brake wheel