The mobile concrete mixer truck is composed of chassis and special equipment for concrete mixing station transportation. Its special mechanism mainly includes power take-off, front and rear support frame of mixing drum, reducer hydraulic system, mixing drum operating mechanism, cleaning system, etc.
The working principle of the mobile concrete mixer is to take out the power of the chassis through the power take-off equipment, drive the variable displacement pump of the hydraulic system, convert the mechanical energy into hydraulic energy and transfer it to the quantitative motor, then the motor drives the reducer, and the reducer drives the mixing device to mix the concrete.
When the mobile concrete mixer transports concrete, the engine power is in the range of 1000 to 1400 rpm. During the whole process of transporting concrete, the speed should not exceed 40 km / h.
At the end of the operation of the mobile concrete mixer, the internal structure and car body of the mixing drum shall be cleaned up, and the remaining concrete shall not be left in the drum.
When the water pump of the mobile concrete mixer is running, it is strictly forbidden to idle, and the continuous application shall not exceed 15 minutes.
The water storage tank of the mobile concrete mixer should always be kept full so that it is in urgent need. After shutdown in winter, the water in the mixing drum of the water pump and water pipe of the water storage tank should be drained and stopped to the sunny position without water storage, so as to prevent freezing and damage the mechanical equipment.
In winter, the mobile concrete mixer should be timely installed with insulation sleeve, and antifreeze should be applied to protect the concrete mixer, and the fuel label should be removed and replaced according to the weather change, so as to ensure the normal application of mechanical equipment.
When inspecting and repairing the hydraulic transmission part of mobile concrete mixer, the engine and hydraulic pump should be used without pressure.