1、 After using the automatic adjusting arm, the vehicle has the following characteristics when driving:

1. Ensure that the wheels have constant braking clearance, and the braking is safe and reliable;

2. The push rod stroke of the brake wheel cylinder is short, and the braking is fast and reliable; Features of automatic adjusting arm used in vehicle

3. Before braking, the push rod of the brake wheel cylinder is always in the initial position, ensuring the best braking torque;

4. Make the braking effect of all wheels consistent and stable;

5. The consumption of compressed air is reduced, and the service life of the air compressor, brake wheel cylinder and other components in the compressed air system is prolonged;

6. Reduce material consumption and prolong the service life of brake components;

7. It is easy to install and use, reduces the number of manual maintenance, and improves the economic benefit;

8. The adjusting mechanism is enclosed in the shell and well protected, so as to avoid moisture, dirt, collision, etc.

2、 Working principle of automatic adjustment arm:

The function of the automatic adjustment arm shall be to accurately record the increase in clearance caused by wear of the friction lining, and accurately adjust the brake clearance to the normal working range.

1. Clearance angle, corresponding to the normal clearance between the brake drum and the friction lining;

2. The excess clearance angle corresponds to the increased clearance due to wear of the friction lining;

3. The elastic angle corresponds to the elasticity caused by the power transmission of the brake drum, friction lining, brake wheel cylinder and brake system. When the clearance is automatically adjusted, the elastic angle in the angular stroke shall be avoided as far as possible. If there is no difference between the excess clearance angle and the elastic angle, it will be compensated at any time, which will cause excessive adjustment, resulting in "dragging" or even "locking".