Wave compensation cylinder with in-built check valve

• Main Authors: KONG HONG, ZHUANG XIAOMING, XIAO JINGJING, MIU CHUNHUI, DING SHENG, FANG HAIQING, XU LEI
• Format: Patent
• Language: Chinese; English
• Published: 03.08.2011
• 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 invention discloses a wave compensation cylinder with an in-built check valve. The wave compensation cylinder comprises an end cover, a cylinder barrel and a cylinder bottom; the cylinder bottom is provided with a hydraulic oil cavity and a buffer sleeve; a rod-free cavity is formed in the cylinder barrel; two oil channels are formed outside the circumference of the buffer sleeve; each oil channel is divided into a narrow oil channel which is communicated with the hydraulic oil cavity and a wide oil channel communicated with the rod-free cavity; and the check valve which can assist in starting the cylinder is arranged in the wide oil channel. The check valve consists of a steel ball and a spring which are arranged at the bottom of the wide oil channel sequentially, and a nut which is in thread fit with the wide oil channel; one end of the spring is pressed against the nut, and the other end of the spring is pressed against the steel ball; the diameter of the steel ball is larger than the inner diameter of