There are two braking methods for automatic cement mixer: oil brake and air brake. Let's talk about the difference between air break brake and oil brake of automatic cement mixer.
1. The parking brake of the ordinary air brake can only be used when the truck is stationary, because its braking torque acts on the transmission shaft. If it is used during the driving of a small mixer, it is easy to cause serious overload of the transmission shaft and the rear axle. It may also cause the opposite rotation direction of the left and right wheels due to the locking of the differential housing, which may cause the truck to run away or even turn around when braking.
However, the energy storage spring braking is not the case. On the contrary, because the parking brake stroke of the energy storage spring is greater than the service brake stroke, the energy storage spring can also be used for emergency braking when the service brake force is insufficient. Therefore, the energy storage spring brake can not only be used for parking brake, but also for emergency brake. Therefore, the air break brake system is superior to the ordinary air brake in terms of braking stability and safety.
2. The oil brake is simple in structure and small in installation space. It only needs the brake master cylinder, slave cylinder, oil cup and connecting pipeline, and does not need other auxiliary equipment; The air brake is much more complicated. In addition to the brake master cylinder, slave cylinder and brake pipeline, there are also air pump, air reservoir, high pressure controller, relay valve and other components, which require large installation space and complex structure. In order to ensure safety, the rear brake slave cylinder is now air cut brake.
3. The conventional brake is that the hand brake locks the transmission shaft, and the compressed air enters the brake chamber to lock the wheels when the foot brake is applied. In case of mechanical failure of the hand brake or transmission shaft, the hand brake fails; When any part of the air pump, pipeline, air reservoir and brake valve fails, the foot brake fails. The air break brake can effectively avoid these dangers
4. There is a strong spring in the air break brake chamber, and compressed air will jack up the spring when driving. The handbrake is to release air and let the spring lock the brake. When the air pressure is too low during driving, braking effect will also occur to ensure safety.
The above is the difference between the air brake and the oil brake of the automatic cement mixer. I believe you have already understood it. Follow us http://www.qzt12580.com Learn more!