Hydraulic control system of engine installation vehicle

• Main Authors: SHI HONGBIAO, LIU LIANG, ZHANG XIANGYING, ZHANG AIJUN, LIU HONGJIE, ZHU QINGWU
• Format: Patent
• Language: Chinese; English
• Published: 25.08.2023
• 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 hydraulic control system of an engine installation vehicle, which comprises a hydraulic oil tank (1), a load-sensitive pump (2), a load-sensitive proportional multi-way valve (10), a lifting oil cylinder (12) and a parking oil cylinder (15), the load-sensitive pump (2) is connected with the hydraulic oil tank (1), the load-sensitive pump (2) is communicated with the load-sensitive proportional multi-way valve (10) through an oil pipe, and the lifting oil cylinder (12) is connected with the lifting oil cylinder (12). And the load-sensitive proportional multi-way valve (10) is respectively connected with a lifting oil cylinder (12) and a parking oil cylinder (15) through oil pipes. According to the utility model, the load-sensitive proportional multi-way valve and the displacement sensor are adopted to carry out closed-loop precision control on the lifting oil cylinder, the load-sensitive proportional multi-way valve realizes synchronous control and independent control on the parki