Jiaozuo brake

Crane brake debugging

1. Installation

The brake is installed on the machine after the brake wheel is installed. The brake wheel must be dynamically and statically balanced, with a surface roughness of not less than Ra l. 6 and a hardness of not less than HB=280. When installing and fixing the brake, attention should be paid to whether the brake shoe is parallel to the brake wheel when the brake is released; In the braking state, the brake pads should stick to the brake wheels. The non parallelism and inclination in the released state shall not exceed 0.1mm within the width of the brake wheel of 100mm. The working surface of the brake wheel must not have oil stains.

2. Oil injection

Before the test run of the electric hydraulic thruster, clean and free of any dirt and mechanical impurities hydraulic oil must be injected into the cylinder. Connect the hydraulic power supply and check if the impeller rotates flexibly, if the circular spring is stuck, and if the push rod and piston move up and down without any jamming.

3. Adjustment of braking torque

By adjusting the adjusting nut of the main spring and changing the compression length of the spring, the spring force and braking torque can be adjusted to ensure that the brake operates with as little braking torque as possible.

4. Adjustment of the brake pad setback of the brake

Due to the brake's ability to automatically adjust clearance, as the brake pads wear, the clearance between the left brake pad and the brake pad can always remain unchanged, but the clearance between the right brake pad and the brake pad gradually increases with the wear of the brake pads. It is necessary to adjust it in a timely manner according to the situation to ensure that the distance between the two brake pads is basically uniform.

5. Stroke adjustment of the thruster

The smaller the working stroke of the electric hydraulic thruster, the more ideal it is to ensure that the brake shoe has less backlash. Therefore, it is necessary to adjust the height of the electric hydraulic thruster.

6. Inspection of brakes

The braking device should be regularly inspected. If used to start the equipment, the brake of the overweight mechanism should be inspected once per shift, and the motion mechanism should be inspected once every three days. Emphasis should be placed on checking whether there is any jamming at the hinge joint; Whether the brake components move normally: whether the electric hydraulic thruster moves normally; Whether there is any oil leakage or seepage phenomenon; Is the installation height of the thruster appropriate; Is the brake shoe correctly pressed against the brake wheel; Is the condition of the friction surface intact and free of oil and dirt.

When the thickness of the brake pads is not reduced to half of the original thickness, the brakes can still operate normally. If the brake pads wear unevenly, the wear thickness should not be less than half of the original thickness, and the edge part should not be less than one-third of the original thickness.

When the thickness is less than the above, it should be replaced in a timely manner. In addition, it is also necessary to check whether the distance between the brake shoe and the brake wheel is even; The spring pull plate is not allowed to be damaged or cracked.

7. The following points should be noted during maintenance and inspection

(1) Regularly observe the oil level of the electric hydraulic thruster cylinder, and add oil appropriately when it is insufficient. When changing the oil, unscrew the oil plug to drain the oil. If impurities are found in the oil, the machine should be cleaned and refueled separately.

(2) The insulation of the incoming power line should be good.

(3) The temperature of the brake wheel should not exceed 200 ℃. If there is a 0.5mm deep crack on the brake wheel, it should be re polished.

(4) Before using the brake or after long-term shutdown, lubricating oil should be added to the axle pin, and regular lubrication should be noted. The brake cannot be used without repairing all defects.

1、 Electric hydraulic block brake:

YWZ4 series electric hydraulic block brake:

YWZ4-100/18; YWZ4-150/25; YWZ4-160/25; YWZ4-200/25; YWZ4-200/45; YWZ4-300/25; YWZ4-300/45; YWZ4-300/90; YWZ4-400/45; YWZ4-400/90; YWZ4-400/125; YWZ4-500/90; YWZ4-500/125; YWZ4-500/180; YWZ4-600/180; YWZ4-700/180; YWZ4-800/180; YWZ4-800/320

YWZ3B series electric hydraulic block brake:

YWZ3B-160/18; YWZ3B-160/25; YWZ3B-200/18; YWZ3B-200/25; YWZ3B-250/25; YWZ3B-250/45; YWZ3B-315/25; YWZ3B-315/45; YWZ3B-315/90; YWZ3B-400/90; YWZ3B-400/125; YWZ3B-500/90; YWZ3B-500/125; YWZ3B-500/180; YWZ3B-630/125; YWZ3B-630/180; YWZ3B-630/320; YWZ3B-710/180; YWZ3B-710/320; YWZ3B-800/320

YWZ4B series electric hydraulic block brake:

YWZ4B-100/23; YWZ4B-150/23; YWZ4B-200/23; YWZ4B-200/30; YWZ4B-300/30; YWZ4B-300/50; YWZ4B-300/80; YWZ4B-400/50; YWZ4B-400/80; YWZ4B-400/121; YWZ4B-500/121; YWZ4B-600/121; YWZ4B-600/201; YWZ4B-700/201; YWZ4B-700/301; YWZ4B-800/301

YWZ5 series electric hydraulic block brake:

YWZ5-160/23; YWZ5-200/23; YWZ5-200/30; YWZ5-250/23; YWZ5-250/30; YWZ5-250/50; YWZ5-315/23; YWZ5-315/30; YWZ5-315/50; YWZ5-315/80; YWZ5-400/50; YWZ5-400/80; YWZ5-400/121; YWZ5-500/80; YWZ5-500/121; YWZ5-500/201; YWZ5-630/121; YWZ5-630/201; YWZ5-630/301; YWZ5-710/201; YWZ5-710/301; YWZ5-800/301/12

YWZ8 series electric hydraulic block brake:

YWZ8-200/23; YWZ8-200/30; YWZ8-300/30; YWZ8-300/50; YWZ8-300/80; YWZ8-400/50; YWZ8-400/80; YWZ8-400/121; YWZ8-500/121; YWZ8-500/201; YWZ8-600/121; YWZ8-600/201; YWZ8-600/301; YWZ8-700/201; YWZ8-700/301; YWZ8-800/301/12

YWZ9 series electric hydraulic block brake:

YWZ9-200/23; YWZ9-200/30; YWZ9-250/23; YWZ9-250/30; YWZ9-250/50; YWZ9-300/30; YWZ9-300/50; YWZ9-300/80; YWZ9-315/30; YWZ9-315/50; YWZ9-315/80; YWZ9-400/50; YWZ9-400/80; YWZ9-400/121; YWZ9-500/80; YWZ9-500/121; YWZ9-500/201; YWZ9-600/121; YWZ9-600/201; YWZ9-600/301; YWZ9-630/121; YWZ9-630/201; YWZ9-630/301; YWZ9-700/201; YWZ9-700/301; YWZ9-710/201; YWZ9-710/301; YWZ9-800/301/12