A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a hydraulic control system of an excavating loader. The system comprises an explosion-proof three-phase asynchronous motor and multiple hydraulic elements. Oil inlets and outlets of the hydraulic elements are connected through hydraulic oil pipes. The hydraulic elements include an oil tank, an air filter, an oil suction filter, a hydraulic duplex gear pump, a priority valve, an all-hydraulic steering gear, a sextuple multiway reversing control valve, a working arm steering oil cylinder, a small arm oil cylinder, a left-handed arm oil cylinder, a right-handed arm oil cylinder, a lifting tank oil cylinder, a hydraulic travel motor, a bucket oil cylinder, a large arm oil cylinder, a single multiway reversing control valve, a hydraulic transport motor, a radiator and a return oil filter. The explosion-proof three-phase asynchronous motor is started to drive the hydraulic duplex gear pump to run, and the sextuple multiway reversing control valve is operated to control all the hydraulic elements to work. By the system, shortcomings of the prior art are overcome, the hydraulic control system is adopted to provide power to the excavating loader, all the hydraulic elements are ensured to be constant, stable and reliable in running pressure in the working process, safety factor of the whole machine control system is heightened, and service life of the complete machine is prolonged.
The invention discloses a hydraulic control system of an excavating loader. The system comprises an explosion-proof three-phase asynchronous motor and multiple hydraulic elements. Oil inlets and outlets of the hydraulic elements are connected through hydraulic oil pipes. The hydraulic elements include an oil tank, an air filter, an oil suction filter, a hydraulic duplex gear pump, a priority valve, an all-hydraulic steering gear, a sextuple multiway reversing control valve, a working arm steering oil cylinder, a small arm oil cylinder, a left-handed arm oil cylinder, a right-handed arm oil cylinder, a lifting tank oil cylinder, a hydraulic travel motor, a bucket oil cylinder, a large arm oil cylinder, a single multiway reversing control valve, a hydraulic transport motor, a radiator and a return oil filter. The explosion-proof three-phase asynchronous motor is started to drive the hydraulic duplex gear pump to run, and the sextuple multiway reversing control valve is operated to control all the hydraulic elements to work. By the system, shortcomings of the prior art are overcome, the hydraulic control system is adopted to provide power to the excavating loader, all the hydraulic elements are ensured to be constant, stable and reliable in running pressure in the working process, safety factor of the whole machine control system is heightened, and service life of the complete machine is prolonged.