The concrete mixer truck is equipped with cylindrical mixing drum to carry the mixed concrete. In the process of transportation, the mixing drum will always rotate to ensure that the concrete carried will not solidify. What are the main special mechanisms of the concrete mixer truck? Today, we will take you to know:

专用机构主要包括取力器、搅拌筒前后支架、减速机、液压系统、搅拌筒、操纵机构、清洗系统等。其工作原理：通过取力装置将汽车底盘的动力取出，并驱动液压系统的变量泵，把机械能转化为液压能传给定量马达，马达再驱动减速机，由减速机驱动搅拌装置，对混凝土进行搅拌。

The special mechanism mainly includes power take-off, front and rear support of mixing drum, reducer, hydraulic system, mixing drum, control mechanism, cleaning system, etc. Its working principle: the power of the automobile chassis is taken out by the power take-off device, and the variable pump of the hydraulic system is driven. The mechanical energy is converted into hydraulic energy and transmitted to the quantitative motor. The motor drives the reducer, and the reducer drives the mixing device to mix the concrete.

取力装置

Power take-off device

国产混凝土搅拌运输车采用主车发动机取力方式。取力装置的作用是通过操纵取力开关将发动机动力取出，经液压系统驱动搅拌筒，搅抖筒在进料和运输过程中正向旋转，以利于进料和对混凝土进行搅拌，在出料时反向旋转，在工作终结后切断与发动机的动力联接。

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.

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.

搅拌装置

Mixing device

它主要由搅拌筒及其辅助支撑部件组成。搅拌筒是混凝土的装载容器，它是由优质耐磨薄钢板制成，为了能够自动装、卸混凝土，其内壁焊有特殊形状的螺旋叶片。转动时混凝土沿叶片的螺旋方向运动，在不断的提升和翻动过程中受到混合和搅拌。在进料及运输过程中，搅拌筒正转，混凝土沿叶片向里运动，出料时，搅拌筒反转，混凝土沿着叶片向外卸出。搅拌筒的转动则是靠液压驱动装置来保证。装载量为3～6立方。的混凝土搅拌运输车一般采用由汽车发动机通过动力输出轴带动液压泵，再由高压油推动液压马达驱动搅拌筒，装载量为9～12立方的则由车载辅助柴油机带动液压泵驱动液压马达。叶片是搅拌装置中的主要部件，损坏或严重磨损会导致混凝土搅拌不均匀。另外，叶片的角度如果设计不合理，还会使混凝土出现离析。

It is mainly composed of mixing drum and its auxiliary supporting parts. The mixing drum is a concrete loading container, which is made of high-quality wear-resistant thin steel plate. In order to automatically load and unload concrete, its inner wall is welded with spiral blades of special shape. When rotating, the concrete moves along the spiral direction of the blade, and is mixed and mixed in the process of continuous lifting and turning. In the process of feeding and transportation, the mixing drum rotates forward, and the concrete moves inward along the blade. When discharging, the mixing drum reverses and the concrete is discharged outward along the blade. The rotation of the mixing drum is ensured by the hydraulic driving device. The loading capacity is 3-6 cubic meters. In general, the truck engine drives the hydraulic pump through the power output shaft, and then the high-pressure oil drives the hydraulic motor to drive the mixing drum. When the loading capacity is 9-12 cubic meters, the vehicle auxiliary diesel engine drives the hydraulic pump to drive the hydraulic motor. Blade is the main part of the mixing device, damage or serious wear will lead to uneven mixing of concrete. In addition, if the angle of blade is not reasonable, it will cause concrete segregation.

清洗系统

Cleaning system

清洗系统的主要作用是清洗搅拌筒，有时也用于运输途中进行干料搅拌。清洗系统还对液压系统起冷却作用。

The main function of the cleaning system is to clean the mixing drum, and sometimes it is used for dry material mixing during transportation. The cleaning system also cools the hydraulic system.

封闭装置

Closure device

全封闭装置采用回转密封技术，密封了搅拌车的进出料口，解决了传统搅拌车水份蒸发、砂浆分层、砼料撒落、行车安全等系列问题。

The rotary sealing technology is adopted in the fully closed device to seal the inlet and outlet of the mixer, and a series of problems such as water evaporation, mortar layering, concrete spreading and driving safety of the traditional mixer truck are solved.

以上就是小编，为大家介绍水泥自动搅拌车的主要专用机构，如果还有其他疑问，欢迎点击下面链接：http://www.sdzkjf.cn/前来咨询。

If you have any questions, please click on the following link http://www.sdzkjf.cn/ Come to consult.