The main engine power take-off mode is adopted for domestic concrete mixer truck. The function of the power take-off device is to take out the power of the engine by operating the power take-off switch, and drive the mixing drum through the hydraulic system. The stirring drum rotates forward in the process of feeding and transportation to facilitate the feeding and mixing of concrete. It rotates reversely when discharging, and cuts off the power connection with the engine after the end of the work. Let's take a specific look.

　　液压系统

　　Hydraulic system

　　将经取力器取出的发动机动力(一般都是后置全功能取力器)，转化为液压能(排量和压力)，再经马达输出为机械能（转速和扭矩），为搅拌筒转动提供动力。

　　The power of the engine taken out by the power take-off device (generally full-function power take-off device at the rear) is converted into hydraulic energy (displacement and pressure), and then output to mechanical energy (speed and torque) through the motor to provide power for the rotation of the mixing drum.

　　减速机

　　Reducer

　　将液压系统中马达输出的转速减速后，传给搅拌筒。

　　After decelerating the speed of the motor output in the hydraulic system, it is transmitted to the mixing drum.
                      

　　操纵机构

　　Control mechanism

　　a．控制搅拌筒旋转方向，使之在进料和运输过程中正向旋转，出料时反向旋转。

　　a. Control the rotation direction of the mixing drum to make it rotate forward in the process of feeding and transportation, and reverse rotation when discharging.

　　b．控制搅拌筒的转速。

　　b. Control the speed of mixing drum.

　　以上就是关于混凝土搅拌车的取力装置的介绍了，这些装置需要我们在操作时进行仔细检查的，检查它们是否正常运行，另外我们在哎操作时也要注意维护机器。

　　The above is about the introduction of the power take-off device of the concrete mixer. These devices need to be carefully checked during operation to check whether they are in normal operation. In addition, we should also pay attention to the maintenance of the machine during operation.