Mixer truck is a special truck used to transport concrete for construction; Because of its shape, it is often called snail car and olive car. Such trucks are equipped with cylindrical mixing drums to carry the mixed concrete. During transportation, the mixing drum will always rotate to ensure that the transported concrete will not solidify. After the concrete is transported, the interior of the mixing drum is usually washed with water to prevent the residual concrete from hardening and occupying space, so as to reduce the volume of the mixing drum.

圖片，有不少車友在咨詢關(guān)于攪拌車罐體的相關(guān)知識，小編在查閱資料時發(fā)現(xiàn)，攪拌車罐體及內(nèi)部構(gòu)造學(xué)問可大了，今天，就為大家詳細詳解一下攪拌車罐體結(jié)構(gòu)知識。

In the picture, many car friends are consulting about the relevant knowledge of mixer tank. When consulting the data, Xiaobian found that the knowledge of mixer tank and internal structure is great. Today, let's explain the structure knowledge of mixer tank in detail.

罐體結(jié)構(gòu)介紹說明

Introduction to tank structure

混凝土攪拌運輸車攪拌筒，一般由前錐、中間筒和后錐三段組成。筒內(nèi)有兩條間隔180°的，對稱焊接在筒壁上的螺旋葉片，這兩條螺旋線與筒壁形成了螺旋通道，混凝土就沿著這些螺旋通道完成進料、攪拌和卸料等工作。一般前錐、后錐分別采用相同等升角的圓錐對數(shù)螺旋片，中間筒一般是圓柱體，一般采用不同等升角的圓柱螺旋葉片。

The mixing drum of concrete mixer truck is generally composed of three sections: front cone, middle cylinder and rear cone. There are two spiral blades symmetrically welded on the cylinder wall with an interval of 180 ° in the cylinder. These two spiral lines form spiral channels with the cylinder wall, and the concrete will complete feeding, mixing and unloading along these spiral channels. Generally, the front cone and rear cone adopt conical logarithmic spiral blades with the same equal lift angle respectively, the middle cylinder is generally a cylinder, and cylindrical spiral blades with different equal lift angles are generally used.

攪拌工作原理

Working principle of mixing

攪拌運輸車的攪拌筒是依靠回轉(zhuǎn)的筒體帶動兩條螺旋葉片對混凝土進行攪拌和卸料作業(yè)的。工作時，攪拌筒繞其軸線轉(zhuǎn)動，使得混凝土沿攪拌葉片的螺旋線運動，螺旋曲線促使混凝土沿相反的方向移到末端和，這是混凝土攪拌時的主要運動。同時，由于混凝土與筒壁和葉片的摩擦力及其內(nèi)在的附著力作用，所以在筒體轉(zhuǎn)動過程中，混凝土達到一定高度后，必在其自重作用下，克服上述摩擦力和內(nèi)聚力而向下翻跌和滑移。其次在葉片的底部，由于葉片的形狀是曲線型，故混凝土在外力的作用下產(chǎn)生旋轉(zhuǎn)式的攪動。由于攪拌筒在連續(xù)的轉(zhuǎn)動，所以混凝土所做的是3種運動混合一起的復(fù)合運動，即三維攪拌運動。從而使混凝土被均勻的攪拌，保證其勻質(zhì)性。

The mixing drum of the mixer truck relies on the rotating cylinder to drive two spiral blades to mix and unload the concrete. During operation, the mixing drum rotates around its axis to make the concrete move along the spiral line of the mixing blade. The spiral curve urges the concrete to move to the end and top layer in the opposite direction, which is the main movement during concrete mixing. At the same time, due to the friction and internal adhesion between the concrete and the cylinder wall and blades, when the concrete reaches a certain height during the rotation of the cylinder, it must overcome the above friction and cohesion under the action of its own weight and overturn and slip downward. Secondly, at the bottom of the blade, because the shape of the blade is curved, the concrete produces rotary stirring under the action of external force. Due to the continuous rotation of the mixing drum, what the concrete does is a composite motion of three kinds of motion, that is, three-dimensional mixing motion. So that the concrete can be evenly mixed to ensure its uniformity.

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