The mixing drum is the key component of the whole three wheeled mixer truck. As the container for storing concrete, it plays a decisive role in preventing its solidification and segregation. It is composed of mixing cylinder, supporting wheel, etc. The cylinder is composed of front cone section, back cone section, cylindrical section, head, blade, feeding cone, raceway, etc. The front end is connected with the reducer, and the rear end is supported on the subframe by supporting wheels.
托輪起支撐滾筒體的作用，由支座、軸承座、軸、軸承等組成。攪拌筒的殼體及葉片都由高強度鋼板製作而成，具有更高的耐磨性。經過優化設計的攪拌筒，還具有可靠的結構剛度，良好的耐磨性能，流暢地進出料，極低的殘留量，既可攪拌混凝土，又可攪動輸送預拌混凝土，決無出料離析現象，保障了混凝土的勻質性能。
The supporting wheel plays the role of supporting the roller body and is composed of a support, a bearing seat, a shaft, a bearing, etc. The shell and blade of the mixing drum are made of high strength steel plate, which has higher wear resistance. The optimized mixing drum also has reliable structural stiffness, good wear resistance, smooth feeding and discharging, and extremely low residue. It can not only mix concrete, but also agitate and transport ready mixed concrete, and has no discharge segregation phenomenon, ensuring the homogeneity of concrete.
攪拌車副車架是三輪底盤攪拌車主要的承重部分，作業時的載荷幾乎都是通過它來支撐，加上在行使中由於路麵的顛簸和加、減速形成的衝擊載荷，都對副車架的結構提出很高的要求。整個副車架由主梁、前台支撐架、後台支撐架組成。主梁采用整體箱型結構梁，從根本上增強了它的抗扭、抗折、抗拉性能，保障了剛性要求。在副車架主梁下鋪設帶孔鋼板以避開底盤上凸起的鉚釘，同時讓主梁的方向與底盤車身大梁方向保持一致，盡可能加大副車架與底盤的接觸麵積。另一方麵，在兩根主梁之間加裝輔助橫梁，調整主梁各段的剛性，讓載荷在副車架整個長度上更均勻的分布。
Mixer subframe is the main load-bearing part of the three wheel chassis mixer. The load during operation is almost supported by it. In addition, the impact load caused by the bumpy road surface and acceleration and deceleration during operation puts forward high requirements for the structure of the subframe. The whole sub frame is composed of main beam, front support frame and back support frame. The main girder adopts the integral box structure beam, which fundamentally enhances its torsion resistance, bending resistance and tensile performance, and ensures the rigidity requirements. The steel plate with holes shall be laid under the main beam of the subframe to avoid the protruding rivets on the chassis. At the same time, the direction of the main beam shall be consistent with the direction of the main beam of the chassis body, and the contact area between the subframe and the chassis shall be increased as much as possible. On the other hand, the auxiliary beam is added between the two main beams to adjust the rigidity of each section of the main beam, so that the load is more evenly distributed in the whole length of the subframe.
進出料裝置由進料鬥、出料鬥、主卸料槽、副卸料槽、支架、鎖緊架等組成，是三輪底盤攪拌車的重要組成部分，直接影響到進出料的速度和質量。進、出料鬥通過支架和副車架的後台支撐架相連。
The feeding and discharging device is composed of feeding hopper, discharging hopper, main discharging groove, auxiliary discharging groove, bracket, locking frame, etc. it is an important part of three wheel chassis mixer, which directly affects the speed and quality of feeding and discharging. The feeding hopper and the discharging hopper are connected with the backstage support frame of the subframe through a bracket.
出料鬥及主卸料槽內加有襯板，襯板采用高強度細晶粒合金鋼，其耐磨能力為Q345A（原16Mn）的1.59倍，大幅度的提高了耐磨性。主卸料槽能使混凝土朝所要求的方向卸出，副卸料槽起延長主卸料槽的長度的作用。在副卸料槽接長時，拉下副卸料槽上的鎖柄，鎖緊。鎖緊架在卸料槽不工作時，將主卸料槽鎖定。
The liner is made of high strength fine grain alloy steel. Its wear resistance is 1.59 times of Q345A (original 16Mn), which greatly improves the wear resistance. The main discharge chute can discharge the concrete in the required direction, and the auxiliary discharge chute can extend the length of the main discharge chute. When the auxiliary discharge chute is lengthened, pull down the lock handle on the auxiliary discharge chute to lock. The locking frame locks the main discharge chute when the discharge chute is not working.
操作係統由控製器、聯動軸、軟軸及連杆機構組成，主要控製攪拌筒的轉速及旋轉方向。三輪底盤攪拌車後部兩側各布置一套控製器，左右控製器可以實現聯動，控製器上隻有一根操縱杆，接出端分別通過連杆機構連接到變量泵上，通過改變泵上控製柄的角度來調節油泵的流量，實現控製筒體轉動的方向和速度，可以左右移動來控製；同時還有接出端通過軟軸連到發動機的油門上，在需要加大轉速時可上下操縱來控製此操縱杆來實現筒體轉速的提高。
The operating system is composed of controller, linkage shaft, flexible shaft and linkage mechanism, which mainly controls the rotation speed and direction of mixing drum. A set of controllers are arranged on both sides of the rear of the three wheel chassis mixer truck, and the left and right controllers can realize linkage. There is only one control rod on the controller, and the connecting end is connected to the variable displacement pump through the connecting rod mechanism. The flow of the oil pump is adjusted by changing the angle of the control handle on the pump, so as to realize the control of the direction and speed of the cylinder rotation, which can be controlled by moving left and right; At the same time, the connecting end is connected to the throttle of the engine through the flexible shaft. When the speed needs to be increased, it can be controlled up and down to control the control lever to improve the cylinder speed.
