Compression-molded integrated hydraulic driving unit

• Main Authors: QIN YALU, ZHOU YING, WANG LIUGEN, LIU HAOXUAN, ZHAO JINGYI, HUO WEIJIA, WANG HUAJUN, LI ZHIBO
• Format: Patent
• Language: Chinese; English
• Published: 22.12.2020
• 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 an integrated hydraulic driving unit for compression molding. The integrated hydraulic driving unit comprises a hydraulic oil tank, a motor, a variable displacement pistonpump, an integrated block, a hydraulic cylinder and a displacement sensor, the integrated block is provided with a filter, a servo proportional directional valve, a first electromagnetic overflow valve, a second electromagnetic overflow valve, a pressure reducing valve, a first pressure sensor, a second pressure sensor and a direct-acting overflow valve. A hydraulic oil tank, a motor, a displacement sensor and a variable displacement piston pump are arranged on the hydraulic cylinder; the integrated block is welded to the rodless cavity end of the hydraulic cylinder, and an oil inlet path P, acontrol oil path A, a control oil path B and an oil return path T are arranged on the integrated block. The hydraulic system completes pressing and overload protection actions by controlling the hydraulic cylinder to stretch