Jiaozuo brake

Provided by QP12.7-A, QP15, QP20, QP25.4, QP30-C and other pneumatic caliper disc brake manufacturers

Pneumatic caliper disc brake

All power sources do not need to be set separately and can be used in conjunction with existing air compression stations. Speed control valves are installed in the gas supply line, and the braking time can be adjusted steplessly.

2、 Usage conditions

Environmental temperature: -40 ℃~60 ℃;

Working air pressure: 5-7bar;

Installation method: Horizontal installation. Pneumatic caliper disc brake QP30-D

The pneumatic caliper Disc brake frame and cylinder are composed of two parts (see the structure diagram).

When cylinder 1 is filled with pressure air, piston rod 5 rapidly contracts into the cylinder under the action of air pressure,

The left and right brake arms, under the action of the reset spring 4, drive the friction block 12 to quickly open (i.e. release the brake). When the cylinder stops supplying air and quickly deflates through the control valve, the piston rod 5 quickly extends under the internal spring of the cylinder, pushing the left and right brake arms to drive the friction block 12 to close (i.e., the holding brake).

2、 Installation of disc brake

·Firstly, check the brake surface of the brake disc and brake pad for oil sludge or other stains.

·Install the G3/8 "(cast iron rod cylinder) or 1/2" (cast aluminum cylinder) connector on the air inlet of cylinder 1, connect the air pipe with a hose, and the air source should be free of oil, water, and other impurities

·During installation, pressure air is first introduced to retract piston rod 5 into the cylinder. Then, the friction block 12 is installed into the brake disc in the direction perpendicular to the brake disc. Then, the base 9 is fixed horizontally on the rigid base so that it is in line with the thickness of the brake disc. The installation position dimensions are shown in the structural diagram

3、 Disc brake commissioning

·Adjust the air pressure value to a range of 5-7 bar.

·For normal work, the first step is to test the brake several times and check if there are any abnormalities in the brake.

·The retraction distance of the friction block can be adjusted by rotating the adjustment rod 6 to change the size of the working stroke. When rotating the adjustment rod, pressure air is first introduced to retract the piston rod, and then adjusted.

Pneumatic inlaid disc brake includes QP12.7-A, QP12.7-B, CQP12.7-A, CQP12.7-B, QP12

7-C, QPL12.7A-A, QPL12.7A-B, CQPL12.7A-A, CQPL12.7A-B, QPL12.7-B, CQPL12.7-B, QP30-D, QP25.4-D, CQP30-D, CQP25.4-D, CQP20-D, CQP10B-A, CQP10B-B, CQP10B-F, CQP10B-A, CQP10B-B, CQP10B-F, CQP20B-A, CQP20B-B, CQP20B-F, CQP38B-A, CQP38B-A Specifications such as 8B-B, CQP38B-F, CQPL38B-A, CQPL38B-B, etc. Each brake disc diameter can be adjusted for four levels of braking torque. The matching air bag uses imported aluminum alloy air bags, which are reliable and stable in performance and have good sealing performance, Small in size and light in weight, it can be classified into A type, B type, C type, D type, and F type according to performance requirements

4、 Disc brake maintenance

When the friction plate is worn and the working stroke increases to 8mm, it is necessary to immediately adjust lever 6 to readjust the working stroke by about 4mm. Otherwise, the brake will fail. After adjustment, the nut 7 should be tightened. When the friction block 12 is worn to about 6mm, the wear block needs to be replaced. The replacement steps are as follows:

1. Cylinder, 2. Right brake arm, 3. Return spring, 5. Piston rod, 6. Adjusting rod, 7. Nut, 8. Left brake arm, 9. Base, 10. Brake block, 11. Spring steel wire, 12. Friction plate

The working principle of pneumatic brakes is to input pressurized gas into the air bag of the pneumatic brake, thereby pushing the piston to move in a straight line, and achieving the braking function by compressing the brake wheel with the friction block of the brake. The pneumatic brake is connected by air pressure, released by a reset spring, and the disc slides along the axis with air pressure to contact the friction plate. Discs, friction plates, etc. are assembled onto the wheel hub to form an integrated structure. The friction plate can be disassembled by unscrewing the adjusting nut, and the exchange is simple. Pneumatic brakes are constructed by installing a tapered shaft sleeve with a wedge onto the shaft, with friction plates that can be exchanged while maintaining the mechanical equipment in its original state. The heat generated by friction is dissipated by a cooling plate installed on a disc with a hub. The friction plate is a double cut split type, which can be exchanged by using a screwdriver to remove the countersunk screw through the hole of the hub disc. Pneumatic brakes have good heat dissipation and can be widely used in industries such as packaging machinery, wire and cable equipment, thin paper, and corrugated paper.

Pneumatic brakes, also known as ventilated brakes, mean that there is a fully inflated air that applies pressure to the socket to achieve braking effect, which is widely used in industry. When it comes to pneumatic brakes, they are also divided into normally closed brakes and normally open brakes. Normally closed brakes keep their sockets open when they are not working, and when they are ventilated during operation, they brake and form a brake.