The power take-off on the concrete mixer is a gear set that can transfer the power of the power system of the concrete mixer to the additional device. Power takeoff, also known as power output, is abbreviated as PTO, which is the acronym of power take off in English. Not only on the concrete mixer, for example, the gear pump of the dump truck, the hydraulic motor of the mixer, the water pump of the fire truck, the compressor of the refrigeration truck and other power connections are basically realized through the power take-off.
取力器分类首要是根据分类体例的差别来辨别：一种是按终究功率输入情势来分；还有一种便是按取力器自身布局的档位来分。
The classification of power takeoff is mainly based on different classification methods: one is based on the final power output form; Another is to divide according to the gear of the power take-off itself.
策念头后端取力（PTO1）：策念头后端取力普通都是在飞轮处，它长处是不受主聚散器节制，但因转变了曲轴未真个布局，对均衡会有一些影响。这类取力情势的利用大师比拟熟习的便是水泥搅拌机。取力器装在聚散器外壳上且在差别工况下搅拌滚筒的扭转标的目的差别。在进料和运输进程正向扭转，出料反向扭转，任务竣事堵截与策念头能源毗连。
Engine rear end power take-off (pto1): the engine rear end power take-off is generally at the flywheel. Its advantage is that it is not controlled by the main clutch, but it will have some impact on the balance due to the change of the structure of the crankshaft end. The familiar application of this power taking form is the cement mixer. The power take-off is installed on the clutch housing, and the rotation direction of the mixing drum is different under different working conditions. In the process of feeding and transportation, it rotates in the forward direction, and the discharge rotates in the reverse direction. At the end of the work, it cuts off the power connection with the engine.
策念头前端取力（PTO2）凡曲直直轴毗连，普通都是由正时齿轮室或由电扇、水泵的皮带轮输入。比方气刹制动体系中的气泵，某些公用任务装配所用的液压马达等。因为该体例的取力器到附加装配的间隔较长，且须要转换传动标的目的，若接纳机器传动其布局就很庞杂，是以普通接纳液压传动。
The power take-off at the front end of the engine (PtO2) is usually connected with the crankshaft and is generally output by the timing gear chamber or the belt pulley of the fan and water pump. For example, the air pump in the air brake system, the hydraulic motor used in some special working devices, etc. Because the distance from the power take-off to the additional device is long and the transmission direction needs to be changed, if mechanical transmission is adopted, its structure is very complex, so hydraulic transmission is generally adopted.
根据取力器自身布局的档位来分的话，首要分为中置取力器和后置取力器。
According to the gear of the power take-off structure, it is mainly divided into middle power take-off and rear power take-off.
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