The 4-square concrete mixer is composed of automobile chassis, mixing drum, transmission system, water supply device, full power power take-off, front and rear supports of mixing drum, reducer, hydraulic transmission system, feeding and discharging system, control mechanism, etc. Concrete needs continuous mixing to prevent drying. Only continuous mixing can keep the soil soft, which is inseparable from the role of 4-square concrete mixer. Next, we will introduce a more important part of it, that is, its power take-off device.

土搅拌车驱动装置的作用是驱动混凝土贮罐转动，它由取力器、万向轴、液压泵、液压马达、操纵阀、液压油箱及冷却装置组成。如果这部

The driving device of soil mixer truck is used to drive the concrete storage tank to rotate. It is composed of power takeoff, universal shaft, hydraulic pump, hydraulic motor, control valve, hydraulic oil tank and cooling device. If this one

4方混凝土搅拌车驱动装置的作用是驱动混凝土贮罐转动，它由取力器、万向轴、液压泵、液压马达、操纵阀、液压油箱及冷却装置组成。如果这部分因故障停止工作，混凝土贮罐将不能转动，这会导致4方混凝土搅拌车车内混凝土报废，严重的甚使整罐混凝土凝结在罐内，造成4方混凝土搅拌车报废。因此，驱动装置是否可靠是使用中应该高度重视的问题。

一、液压系统

The driving device of 4-square concrete mixer truck is used to drive the concrete storage tank to rotate. It is composed of power takeoff, universal shaft, hydraulic pump, hydraulic motor, control valve, hydraulic oil tank and cooling device. If this part stops working due to failure, the concrete storage tank will not rotate, which will lead to the scrapping of the concrete in the 4m3 concrete mixer truck, and even cause the whole tank of concrete to condense in the tank, resulting in the scrapping of the 4m3 concrete mixer truck. Therefore, whether the driving device is reliable or not is a problem that should be paid great attention to in use. 1、 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4方混凝土搅拌车马达输出为机械能（转速和扭矩），为搅拌筒转动提供动力。

The engine power taken out by the power take-off is generally a rear full-function power take-off, which is converted into hydraulic energy (displacement and pressure), and then output into mechanical energy (speed and torque) by the motor of the 4-square concrete mixer to provide power for the rotation of the mixing drum.

二、减速机

2、 Reducer

将4方混凝土搅拌车液压系统中马达输出的转速减速后，传给搅拌筒。

After decelerating the speed output by the motor in the hydraulic system of the 4-square concrete mixer, it is transmitted to the mixing drum.

三、操纵机构

3、 Operating mechanism

1、控制4方混凝土搅拌车搅拌筒旋转方向，使之在进料和运输过程中正向旋转，出料时反向旋转。

1. Control the rotation direction of the mixing drum of the 4-square concrete mixer to make it rotate forward during feeding and transportation and reverse during discharging.

2、控制4方混凝土搅拌车搅拌筒的转速。

2. Control the rotating speed of the mixing drum of the 4m3 concrete mixer.

4方混凝土搅拌车的取力装置，对于提高搅拌车的效率，对于稳定它的作用，还是会。它的取力装置，可以传递更多的能量。并且可以实现能量转换。

The power take-off device of 4-square concrete mixer will improve the efficiency of the mixer and stabilize it. Its power take-off device can transmit more energy. And energy conversion can be realized.