â— Ten components of concrete mixer truck
The concrete mixer truck is mainly composed of a chassis and a top part, which can be simply divided into: a chassis system, a hydraulic transmission system, a mixing tank, a discharging system, a cleaning system, a sub-frame, an operating system, a supporting wheel system, and a feeding system. , Circuit system consists of ten parts.
 1 , the chassis system: the main components of the mixer, the entire concrete mixer transport function is achieved by the chassis.
2. Hydraulic transmission system : The engine power taken out by the power takeoff is converted into hydraulic energy ( displacement and pressure ) , and then the motor output is mechanical energy ( speed and torque ) to provide power for the rotation of the mixer drum.
3. Stirring tank : The mixing drum is the key component of the entire mixing truck and is a container for storing concrete, which plays a decisive role in preventing the concrete from solidifying and segregating. The inside of the tank has blades, which mainly play the role of stirring and guiding.
 4 , the discharge system : mainly by the main discharge chute, vice unloading trough, locking rods and other components, vice unloading chute to extend the length of the main discharge chute.
5. Cleaning system : The cleaning system is mainly composed of pressure water tank, water gun, water pipe and valve. The use of air pressure water supply, the main role is to rinse the hopper after loading and unloading the material is completed and rinse the mixing tube, unloading tank to prevent concrete bonding.
6. Sub-frame: The sub-frame of the mixer is the main load-bearing part. The load during operation is almost always supported by it and transferred to the chassis.
The subframe also plays a role in alleviating the bumping and deceleration of the road surface. The entire sub-frame consists of a main beam, a front support frame and a background support frame.
7. Control system : The operating system consists of the controller, linkage shaft, flexible shaft and linkage mechanism, which mainly controls the rotation speed and rotation direction of the mixing drum.
8. Supporting wheel system : The part of the rear part of the mixing tank connected with the auxiliary frame mainly serves to support the drum body.
9 , feeding system : mainly by the hopper and the composition of the bracket, the hopper due to the impact of wear and tear, the material requires good wear resistance, the stent mainly to reduce the impact of the role.
10 , circuit system : mainly refers to the entire circuit of the mixer, including the taillights of the vehicle, the side marker lights, the gallery lights, cooling fan motors.
â— The four working principle of the mixer
   Mixer stirring function principle:
The power take-off device drives the engine's power through a small drive shaft to drive the hydraulic pump's hydraulic motor to rotate, and the speeding machine drives the stirring barrel to rotate. While transporting the concrete, the need to maintain the stirred tank 1-3 revolutions per minute at a low speed, in order to ensure homogeneous concrete, while preventing the concrete segregation, referred agitation (stirring commonly known).
   Mixer loading function principle:
When the mixer truck is loaded with concrete, the speed of the stirring tank is 6-10 revolutions per minute. The concrete enters the mixer tube through the tube inlet pipe through the loading system, and flows to the middle and lower part of the mixer tube under the guidance of the spiral blade. Note: The direction of rotation of the tank during loading and during transportation should be the same, otherwise the concrete will be unloaded during transportation.
   Mixer unloading function principle:
Mixer when unloading, the power of the engine through the power take off, a hydraulic pump, a transmission gear, etc. to a stirred tank, driven body rotated at a speed of 3-14 rpm / min; concrete pushing action in a spiral motion blades Move toward the nozzle and discharge it through the hopper of the mixer. The direction of rotation of the tank at this time is opposite to the direction of feeding.
   Mixer cleaning function principle:
The water tank of the braking system is pressurized to the water tank, and the water flows through the pressurized cleaning tank system, the charging port, and the unloading system.
â— Postscript:
   This knowledge may be relatively simple for the users of the mixer truck, but for beginners who are not exposed to the mixer industry, they can still seriously look and study. If there are any mistakes in the text, I also hope that everyone will discuss them in a timely manner.
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