1. The choice of engine horsepower. For the same brand of engine, the higher the horsepower, the better the acceleration performance, the better the climbing performance, the higher the maximum speed under heavy load, and the less the number of shifting during operation. Therefore, if you want your mixer to accelerate fast, have good climbing performance, high speed, and reduce the number of shifts, you'd better choose the engine with relatively high horsepower, which is appropriate, not too high horsepower, which will cause waste.

2. 变速箱选择，一般来说档的位数越多，1档时爬坡性能越好，档位数越多，换挡时发动机转速变化月小，整车的使用就更加经济省油；变速器扭矩，变速器的额定输入扭矩不能小于发动机的扭矩，比如WP10.336E40发动机的扭矩为1500Nm，可以匹配10JSD160变速器，但是不能匹配10JSD140变速器。变速箱要带同步器，带同步器的变速器，换挡时齿轮自动吸入，换挡平顺性好，换挡冲击小。

two Generally speaking, the more the number of gears, the better the climbing performance in the first gear. The more the number of gears, the smaller the change of engine speed in the shift, the more economical and fuel-efficient the whole vehicle is. The transmission torque, the rated input torque of the transmission should not be less than the maximum torque of the engine. For example, the maximum torque of wp10.336e40 engine is 1500nm, which can be matched with 10jsd160 transmission, But it can't match the 10jsd140 transmission. The transmission should be equipped with synchronizer. The transmission with synchronizer can automatically suck in the gears when shifting, which has good shifting smoothness and small shifting impact.

3. 车辆后桥的选择，搅拌车的承载力主要依靠后桥，后桥的速比月小，同等条件下车速越高，经济车速越高，经济车速越高，车辆就越省油，但是车辆的爬坡就差点，档加速能力就差些。

3. The choice of the rear axle of the vehicle, the bearing capacity of the mixer mainly depends on the rear axle, the speed ratio of the rear axle is small. Under the same conditions, the higher the maximum speed is, the higher the economic speed is, and the higher the economic speed is, the more fuel-efficient the vehicle is. However, the climbing speed of the vehicle is poor, and the acceleration ability of the highest gear is poor.

4. 单双级强的选择，单级桥只有主减速器一对齿轮啮合，传动效率高，省油；双级桥有主减和轮边减速两对齿轮啮合，传动效率低，但是半轴上扭矩小，可靠性比较高。

4. Single stage and double stage strong selection, single stage bridge only has a pair of main reducer gears meshing, high transmission efficiency and fuel saving; double stage bridge has two pairs of main reducer and wheel side reducer gears meshing, low transmission efficiency, but small torque on the half shaft, high reliability.

5. 动力总成选择，大功率发动机+直接档+小速比的优势：大功率换挡减少，保证发动机工作在经济转速区，爬坡动力强；直接换挡变速器+小速比后桥可以实现和超速档变速器+大速比后桥相同的更小传动比，两种配置经济车速一致；直接档啮合齿轮数量较少，传动效率较高，节油性好。

five Powertrain selection, advantages of high-power engine + direct gear + small speed ratio: reduced high-power shift, ensuring that the engine works in the economic speed zone, strong climbing power; direct shift transmission + small speed ratio rear axle can achieve the same minimum transmission ratio as overdrive transmission + large speed ratio rear axle, the two configurations have the same economic speed; the number of meshing gears in direct gear is less, and the transmission efficiency is high It's high and fuel saving.

6. 一般情况下经常使用档行驶的搅拌车，建议使用直接档+小速比配置；经常使用次行驶的搅拌车，更好使用超速档+大速比配置。

6. Generally, the mixer with the highest driving gear is often used, and it is recommended to use the configuration of direct gear + small speed ratio; the mixer with the lower driving gear is often used, and it is better to use the configuration of overdrive gear + large speed ratio.