Jiaozuo brake

CQPL-12.7

1、 Working principle

CQPL12.7 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 quickly contracts into the cylinder under the action of air pressure. The left and right brake arms, under the action of return 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 brakes

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

2. 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

3. When installing, first introduce pressure air to retract the piston rod 5 into the cylinder. Then, install the friction block 12 in the direction perpendicular to the brake disc into the brake disc. Then, fix the base 9 horizontally on the rigid base so that its center is in line with the thickness center of the brake disc. The installation position dimensions are shown in the structural diagram

3、 Mode

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

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

c) 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.

4、 Repair

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 plate 12 is worn to about 6mm, the wear plate needs to be replaced. The replacement steps are as follows: www.hnbrakes.com

1. Cylinder,

2. Right brake arm

3. Return spring

5. Piston rod

6. Adjusting the lever

7. Nut

8. Left brake arm

9. Base

10. Brake pads

11. Spring steel wire

12. Friction block

CQPL12.7 Structure Diagram of Air Caliper Disc Brake

1. First, pull out the spring steel wire 11 on the brake block and remove the friction block 12.

2. Place the new friction block in the U-shaped groove of the brake block, insert the spring steel wire, and then check whether the friction block is secure after installation.

2、 Performance parameters

parameter

model

Customized power N

Working stroke mm

Backset

Mm

Galaxy effective radius of brake disc

M

Rated braking force distance

Nm

CQP12.7-A

CQP12.7-B

six hundred

four hundred

4-5

1 0.2

Brake disc radius 0.03

Customized power × Having a radius

6、 Shape and size parameters

parameter

model

A

B

Ø C

Ø D

cast iron

cylinder

aluminium alloy

cylinder

cast iron

cylinder

aluminium alloy

cylinder

cast iron

cylinder

aluminium alloy

cylinder

cast iron

cylinder

aluminium alloy

cylinder

CQP12.7-A

two hundred and ninety-five

three hundred

two hundred and twenty

two hundred

Ø186

Ø190

G3/8 "

G1/2 "

CQP12.7-B

two hundred and seventy-five

two hundred and seventy-five

two hundred

one hundred and seventy-five

Ø142

Ø 144