Double-acting rapid hydraulic cylinder

• Main Authors: WEI XIANGZHEN, WU QINLAN, SHEN-MA BINGSHENG, ZHENG LONGHAI, LIU DAXING
• Format: Patent
• Language: Chinese; English
• Published: 09.10.2013
• 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 double-acting rapid hydraulic cylinder, comprising a cylinder, a large piston rod and a small piston rod; the large piston rod is nested in the cylinder and an oil free cylinder is formed between the large piston rod and the cylinder; the end of the large piston rod is fixed to the cylinder through a clamping ring. The small piston rod is nested in the large piston rod; a first oil liquid chamber and a third oil liquid chamber are formed between the small piston rod and the large piston rod; guide sleeves are arranged among two ends of the small piston rod and the large piston rod; an oil guide pipe is arranged in the small piston rod; a second liquid chamber is formed among the large piston rod, the small piston rod and the cylinder; the small piston rod is provided with a first oil inlet and a second oil inlet; the front end of the cylinder is provided with a third oil inlet; the cylinder is provided with an exhaust port in communication with the oil free cylinder; the inner of