Construction machinery;  working device;  test benches;  System

The multi-functional test bench for construction machinery is mainly used for traction and loading test of construction machinery. The test bench can not only hang a variety of working devices of construction machinery to study the selection of shovel cutting, milling, compaction, paving and other action mechanisms and performance parameters, provide power sources for these working devices and other devices, but also simulate the automatic control of a variety of working devices. The design scheme, use and function of the test bench are introduced in detail, and the structural composition, working principle and performance parameters of each system of the test bench mechanical system, hydraulic system, control system, test system and power system, as well as the auxiliary working device selected.