The concrete mixer truck is composed of special vehicle chassis, mixing tank, feeding and discharging device, water supply system and hydraulic system. The mixing tank is used to stir and mix concrete. The mixing tank is mainly composed of tank body, connecting flange, raceway and mixing blade. The shape of the mixing tank is mostly pear shaped, also known as snail truck. The material of the mixing tank is generally high-strength steel plate. In order to automatically load and unload concrete, spiral blades of shape are welded on the inner wall of the mixing tank. When the mixing tank rotates in the forward direction, the concrete in the tank will not set quickly due to continuous stirring. When it rotates in the reverse direction, the concrete will be automatically discharged from the shoe opening.

混凝土攪拌車使用的都是專用底盤，它有足夠的承載力和強勁的輸出功率，現(xiàn)在的攪拌車都是輕量化設(shè)計，裝載量都是比較多的。

The concrete mixer truck uses a special chassis, which has sufficient bearing capacity and strong output power. Now the mixer truck is lightweight design, and the loading capacity is relatively large.

攪拌車的結(jié)構(gòu)設(shè)計要合理，操作方便，攪拌罐的進出料口耐要好，沙和石子是混凝土的主要組成部分，這些材料使得進出料口的磨損會比較嚴重，一般采用低合金鋼制造的混凝土攪拌罐的使用壽命為5萬-8萬立方米，而罐內(nèi)的葉片使用壽命大概在3萬-4萬立方米?；炷翑嚢柢囋谛熊囍屑暗却读线^程中，為避免混凝土水分離析或凝固，通過取力器裝置將底盤的動力取出，并驅(qū)動液壓系統(tǒng)的變量泵吧機械能轉(zhuǎn)化為液壓能傳給定量馬達，馬達再驅(qū)動減速機，由減速機驅(qū)動攪拌裝置，對混凝土進行攪拌。

The structural design of the mixer truck shall be reasonable and easy to operate. The inlet and outlet of the mixing tank shall be resistant. Sand and stones are the main components of concrete. These materials will cause serious wear at the inlet and outlet. Generally, the service life of the concrete mixing tank made of low alloy steel is 50000-80000 m3, while the service life of the blades in the tank is about 30000-40000 m3. In order to avoid concrete moisture segregation or solidification during driving and waiting for unloading, the power of the chassis is taken out through the power take-off device, and the variable pump of the hydraulic system is driven to convert the mechanical energy into hydraulic energy and transmit it to the quantitative motor. The motor then drives the reducer, and the reducer drives the mixing device to mix the concrete.

在這個過程中攪拌罐均需要勻速轉(zhuǎn)動，卸料時反向轉(zhuǎn)動，罐內(nèi)混凝土被葉片轉(zhuǎn)動，均勻連續(xù)卸出。進出料系統(tǒng)是由進料斗、出料斗、主卸料槽、之家、鎖緊架等組成，是攪拌車的重要組成部分，直接影響進出料的速度和質(zhì)量，進出料斗通過之架和副車架的后臺支撐架相連，出料斗和主卸料槽內(nèi)加油襯板，襯板采用剛強度細晶粒合金鋼，在選購攪拌車的時候要注重的了解它的底盤配置及上裝材質(zhì)。

In this process, the mixing tank needs to rotate at a uniform speed. During unloading, it rotates in the opposite direction. The concrete in the tank is rotated by the blades and unloaded evenly and continuously. The feed and discharge system is composed of feed hopper, discharge hopper, main discharge tank, home, locking frame, etc. it is an important part of the mixer, which directly affects the speed and quality of feed and discharge. The feed and discharge hopper is connected with the backstage support frame of the subframe through the frame. The feed liner in the discharge hopper and the main discharge tank is made of rigid strength fine grain alloy steel, When choosing a mixer truck, we should pay attention to understand its chassis configuration and top material.

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