Industrial clamp type manual pneumatic hydraulic brake

Common brakes mainly have the following types:

1 caliper type manual brake

Manual brake is to manually control the brake force, like the hand wheel to rotate, control the tightness of the brake, it is called a manual brake.

2 caliper type pneumatic brake

Pneumatic brakes also act as ventilating brakes, which means that there is a need to apply pressure by means of ventilation to allow the closure of the closure to achieve a braking effect. This type of industrial use is more extensive. Pneumatic brakes are also divided into normally closed brakes and normally open brakes. Normally closed brakes are always open when they are not in use. When operating, the brakes are formed when they are ventilated. Normally open brake is under normal circumstances, it is closed for sealing, has been out of the brake state, will be released after ventilation, it will become a normally closed brake.

Normally closed brake principle: Normally-closed pneumatic brake with disk type is distinguished from normally open brake by the fact that the normally open brake is the air-driven brake, that is, the ventilating brake, and the clamps on both sides of the vent are clamped together. The normally closed brake is as shown in the figure. It is shown that the clamp is in a tightening state and is released after being ventilated. Therefore, in the normal state, the normally closed brake is always in the brake. Normally closed brake springs apply a brake and are released by pneumatic actuation.

3 normally open hydraulic brake

The hydraulic brake uses hydraulic pressure to press the brake disc and the friction element clamps the brake disc from both sides to generate braking. Hydraulic disc brakes have many advantages such as stable braking, short braking time, large braking force, low inertia moment, good heat dissipation performance, compact structure, and wide applicability. It has been applied to various mine hoists, cranes, conveyors, steel rolling equipment, vacuum pumps, air compressors, bridge machinery and transport vehicles.

Two industry trends and market analysis:

As we all know, today’s society is becoming increasingly mechanical, automated, and mechanical equipment is more extensive. Brakes are used in machine tools, motors, packaging machinery, printing machinery, papermaking machinery, textile machinery, office equipment, metallurgical machinery, tobacco machinery, and automated production. Equipment, woodworking machinery and other mechanical transmission systems as actuators to complete the clutch, reversing, transmission, braking, positioning and other functions. Therefore, the brakes must be widely used in future lives, and they must be indispensable. The commercial value will also increase.

Three caliper disc brake advantages:

Compared with the drum brake, the disc brake work surface is flat and heat transfer on both sides, the disc rotation is easy to cold cut, is not easy to produce a large deformation, the braking performance is stable, the brake disc due to high temperature expansion after prolonged use The braking effect is enhanced; while the drum brake heat transfer on one side, the temperature difference between the inner and outer surfaces is large, which results in the brake drum being easily deformed. At the same time, after a long period of braking, the brake drum expands due to high pressure and the braking performance decreases. In addition, the disc brake is simple in structure, easy to maintain, and easy to automatically adjust the brake gap. The structure is simple, easy to install, not easy to damage, pressure resistance, anti-knock and knock, long service life, generally only need to replace the brake pads, easy and simple to replace, using the magnet effect.

Disadvantages of four-clamp disc brakes:

Have their own flaws. For example, the requirements for the manufacture of brakes and brake lines are high, and the loss of friction plates is relatively large and costly. Moreover, due to the small area of ​​friction plates, the relatively frictional working surface is also small, and the required brake hydraulic pressure is high. It is less effective to use the vehicle with the help of the device. Therefore, when the brake system is used in the hydraulic brake system, the pressure required to actuate the brake is high, and the servo device is generally used.

Source: Kunshan Hongxu Machinery Co., Ltd.