 Loader selection principle 1. Selection of the model: It is mainly selected and determined according to the operation and use. Generally, work is carried out in quarries and soft bases, and wheel loaders are often used with tyre chains; 2, the choice of power: generally use engineering machinery with diesel engines, operating in special areas, such as altitudes above 3000m, special high-profile diesel engines should be used; 3, the choice of transmission type: generally use hydraulic-mechanical transmission. The key component is the choice of the torque converter form. China's loaders often use twin-turbo, single-stage two-phase hydraulic torque converters. 4. When selecting the loader, fully consider the braking performance of the loader, including multiple brakes, parking brakes and emergency brakes. The brakes are hoofed, caliper and wet multi-piece. The driving mechanism of the brake is generally a urging device, and the power source thereof is compressed air, gas capping oil and hydraulic type. Commonly used is the gas top oil brake system, generally using a dual-circuit brake system to improve driving safety. |
