Most special purpose vehicles are manual transmission, and automatic concrete mixer is no exception. Manual transmission vehicles use more clutches. What factors limit the service life of clutches? The clutch is composed of moving plate assembly, clutch gland and cover assembly, release bearing and flywheel. The main materials are high strength steel, aluminum alloy, ball milled cast iron, etc. What we usually call the three piece clutch set refers to the clutch plate, pressure plate and release bearing. The service life of the clutch in general vehicles is about 60000 km.
The short service life of the clutch of the automatic concrete mixer truck is affected by several aspects
1. For an automatic concrete mixer, if you step on the clutch for a long time, the clutch will always be in the working state. Such a long time operation is very easy to cause overheating and excessive wear of the clutch.
2. Semi linkage for a long time. This refers to that during the driving process of the vehicle, the clutch is always on, half on and half off. This belongs to semi linkage, also known as semi clutch. This will lead to a serious shortening of the service life of the release bearing, the service life of the brake pad, and the service life of the clutch.
three For automatic concrete mixer, the starting accelerator is too large. For manual transmission, some people like to step on the accelerator when starting (one end of the clutch is connected to the engine, and the other end is connected to the gearbox and wheels). If the accelerator is too large, the engine speed will come up immediately. When the clutch is just combined, the speed difference between the two ends is very large. One engine has turned very fast, and there is only one Slow down. Slow down. If you twist the clutch in this way, it will cause extra consumption. If the accelerator is too large, either the clutch slips or the tire slips, which is not good for the car. If you drive like this for a long time, there will be problems. If the gear is high and the speed is low, the resistance torque from the ground and the gearbox will be particularly large.
4. For the automatic concrete mixer, the higher the gear, the greater the resistance torque. The resistance torque is inversely proportional to the transmission of the gearbox. The higher the gear of the gearbox, the smaller the transmission ratio, and the greater the resistance torque. The clutch connected to the engine gearbox will bear more load, which will accelerate the wear of the clutch plate. Mixer load is relatively large, for the use of clutch to be careful, I hope these suggestions can bring help to the mixer driver!