Control system for switching between single pump and double pumps

• Main Authors: WANG LEIZHEN, JIA CUNKUN, ZHANG JIAN, SUN BENQIANG, LIU CHENGLIANG, JIN YUEFENG, DONG YUZHONG
• Format: Patent
• Language: Chinese; English
• Published: 25.01.2022
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; WEAPONS

The utility model discloses a single pump and double pump switching control system, which comprises a first variable pump and a second variable pump, an oil suction port of the first variable pump is connected with a hydraulic oil tank, an oil outlet of the first variable pump is connected with an oil inlet of an executive component, and an oil outlet of the executive component is connected with the hydraulic oil tank; an oil suction port of the second variable pump is connected with the hydraulic oil tank, and an oil outlet of the second variable pump is connected with an oil inlet of the switching valve and an oil inlet of the one-way valve; an oil outlet of the one-way valve is connected with an oil inlet of the execution element; an oil outlet of the switching valve is connected with the hydraulic oil tank; a control oil port of the switching valve is connected with the control output end of the electromagnetic reversing valve, and the control input end of the electromagnetic reversing valve is connected