Concrete mixer truck is a special truck used to transport construction concrete; because of its shape, it is often called a snail truck. This kind of truck is equipped with cylindrical mixing drum to carry the mixed concrete.
自动搅拌车是运输建筑混凝土的专用运输车，因其外形特点，常被称为蜗牛车。这种运输车装有圆柱形搅拌筒，用来运输搅拌好的混凝土。
It is composed of automobile chassis, mixing drum, transmission system, water supply device, full power power power take-off device, front and rear bracket of mixing drum, reducer, hydraulic transmission system, feeding and discharging system, control mechanism, etc. Due to technical bottleneck, domestic four parts are used for domestic mixer tank with a volume of 3M × 3-8m × 3, and most of the four parts used for tank with a volume of 8m × 4 or above are imported parts.
由汽车底盘、搅拌桶、传动系统、供水装置、全功率取力装置、搅拌桶前后支架、减速机、液压传动系统、上下料系统、控制机构等组成，由于技术瓶颈，国内搅拌桶采用四部分容积为3M×3-8m×3，容积为8m×4及以上的储罐所用的四个部件大部分为进口件。
Mixer car composition: Class II chassis, transmission system, hydraulic system, frame, mixing tank, feeding and discharging device, water supply system, control system, ladder and other parts. The front end of the mixing tank is connected with the reducer and installed on the front end of the rack, and the rear end is provided with two supporting wheel concrete mixing tank trucks installed on the back end of the rack through the raceway
搅拌车组成：二级底盘、传动系统、液压系统、车架、搅拌罐、上下料装置、供水系统、控制系统、梯子等部件。搅拌槽前端与减速机连接，安装在机架前端，后端设有两辆托轮混凝土搅拌槽车，通过滚道安装在机架后端
With the rapid development of concrete production and construction technology, some countries have gradually adopted the way of centralized mixing and commercial supply of concrete. Concrete is provided by a special concrete mixing station, and then transported to various construction sites by concrete mixer trucks. This paper briefly introduces the structure principle and maintenance of concrete mixer.
随着混凝土生产和施工技术的快速发展，一些国家逐渐采用混凝土集中搅拌和商品供应的方式。混凝土由专用混凝土搅拌站提供，水泥自动搅拌车运至各施工现场。简要介绍了自上料水泥搅拌车的结构原理及维护保养。
The mixing drum is a concrete loading container, which is made of high-quality wear-resistant steel sheet. In order to automatically load and unload concrete, its inner wall is welded with special shape spiral blades. When rotating, the concrete moves along the spiral direction of the blade, and is mixed and stirred in the process of continuous lifting and turning. In the process of feeding and transportation, the mixing drum rotates positively, the concrete moves inward along the blade, and when discharging, the mixing drum reverses, and the concrete is discharged outward along the blade. The rotation of the mixing drum is guaranteed by the hydraulic drive device. The concrete mixer truck with a loading capacity of 3-6 cubic meters generally uses a hydraulic pump driven by an automobile engine through a power output shaft, and then a hydraulic motor driven by a high-pressure oil to drive the mixing drum. The truck mounted auxiliary diesel engine drives the hydraulic pump to drive the hydraulic Marta with a loading capacity of 9-12 cubic meters. The blade is the main part of the mixing device, which will lead to uneven mixing of concrete if it is damaged or severely worn.
自动搅拌车的搅拌筒是由优质耐磨钢板制成的混凝土装载容器。为实现混凝土的自动装卸，其内壁采用异形螺旋叶片焊接而成。旋转时，混凝土沿叶片螺旋方向移动，在连续提升和转动过程中搅拌。在投料和运输过程中，搅拌筒正转，混凝土沿叶片向内移动，卸料时搅拌筒反转，混凝土沿叶片向外卸料。搅拌筒的旋转由液压驱动装置保证。装载量为3-6立方米的水泥自动搅拌车一般采用汽车发动机通过动力输出轴驱动的液压泵，再由高压油驱动的液压马达驱动搅拌筒。车载辅助柴油机驱动液压泵驱动液压马达，负载能力9-12立方米。搅拌装置的主要部件是叶片，如果叶片损坏或磨损严重，将导致混凝土搅拌不均匀。
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