The invention relates to a mining dump
truck lifting
system with a
load capacity detection function and a using method thereof, the mining dump
truck lifting
system comprises a lifting pump connected with a hydraulic
oil tank, the lifting pump is connected with a lifting oil cylinder through a lifting
proportional valve, a rodless cavity of the lifting oil cylinder is provided with a
pressure sensor, a lifting angle sensor is arranged on a
carriage of a mining dump
truck, and a slope sensor is arranged on a truck body. The
system further comprises a controller, the input end of the controller is connected with the
pressure sensor, the lifting angle sensor and the gradient sensor, and the output end of the controller is connected with the lifting pump and the lifting
proportional valve. The controller controls the lifting
proportional valve to drive the lifting pump to lift in a
small range, pressure value calibration in the reference state, the no-load state and the full-load state is achieved, after calibration of the three states is completed,
load capacity detection is conducted, the
load capacity of the vehicle is calculated, and the system is few in part, easy to install and maintain, low in cost and high in reliability. Automatic diagnosis of the detection system can be realized, so that system errors are reduced, and faults are eliminated.