Centering oil cylinder with bidirectional buffering and crane

• Main Authors: ZOU YANHU, XIONG CHAO, YU YANGHUA
• Format: Patent
• Language: Chinese; English
• Published: 19.11.2019
• Subjects: BLASTING; CRANES; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; HAULING; HEATING; HOISTING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIFTING; LIGHTING; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; TRANSPORTING; WEAPONS

The invention relates to the technical field of engineering vehicles, in particular to a centering oil cylinder with bidirectional buffering and a crane. The centering oil cylinder with bidirectionalbuffering comprises a cylinder body, a first piston, a second piston and a piston rod, wherein the cylinder body comprises a first chamber, a second chamber and a centering section arranged between the first chamber and the second chamber, the first piston is slidably arranged in the first chamber, the second piston is slidably arranged in the second chamber, one end of the piston rod is arrangedbetween the first piston and the second piston, and an oil return flow channel is arranged in the centering section; and a first buffer cavity is arranged between the piston rod and the first piston,a second buffer cavity is arranged between the piston rod and the second piston, the first buffer cavity and the second buffer cavity both communicate with the oil return flow channel, and the first buffer cavity and the second