Combined type hydraulic cylinder with rapid boosting function and testing method of combined type hydraulic cylinder

• Main Authors: CHEN RUIKUN, GAO LIANGSONG, ZHANG YINGKUN, HUANG YUNTAN, HU YONG, GUO CHANGSHUAI, ZHANG LINFEI, MA QUYANG, ZHU JIABAO
• Format: Patent
• Language: Chinese; English
• Published: 14.06.2024
• 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 combined type hydraulic cylinder with the rapid boosting function comprises an outer cylinder body and a piston, oil outlet pipes are arranged on the two sides of the outer cylinder body, and a high-pressure cavity, a second-stage boosting cavity, an emptying cavity and a first-stage boosting cavity are symmetrically formed in the two sides in the outer cylinder body; a high-pressure cavity oil inlet pipe, a second-stage pressurizing cylinder oil pipe and a first-stage pressurizing cylinder oil pipe are respectively arranged outside the outer cylinder body at the positions matched with the high-pressure cavity, the second-stage pressurizing cavity and the first-stage pressurizing cavity; by arranging the high-pressure cavity, the second-stage pressurizing cavity, the emptying cavity and the first-stage pressurizing cavity, hydraulic oil is conveyed to the first-stage pressurizing cavity and the second-stage pressurizing cavity through the main oil pump and the second-stage oil pump respectively, the oil q