Hydraulic lifting oil cylinder for forklift

• Main Authors: XU WANXING, LYU ZHANKUN, DAI HONGHUI
• Format: Patent
• Language: Chinese; English
• Published: 02.04.2024
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; HAULING; HEATING; HOISTING; HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDEDFOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCEDIRECTLY TO THE SURFACE OF A LOAD; HYDRAULICS OR PNEUMATICS IN GENERAL; LIFTING; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; TRANSPORTING; WEAPONS

The hydraulic lifting oil cylinder comprises a cylinder body, a cylinder base, a piston rod and a piston head, the cylinder base is fixed to one end of the cylinder body in a welded mode, the piston head is fixed to a threaded hole axially formed in the piston rod in a spiral mode, and one end face of the piston head abuts against one end face of the piston rod. The other end face of the piston head abuts against the bottom face of the cylinder base when the hydraulic lifting oil cylinder is folded. A stepped through hole is formed in the axial direction of the piston head, the stepped through hole is communicated with a blind hole of the threaded hole, a floating valve sleeve is installed in the stepped through hole, the floating valve sleeve is fixed in the stepped through hole in a limited mode through a baffle ring, and when the hydraulic lifting oil cylinder is folded or started, the floating valve sleeve is movably inserted into a buffer plunger arranged on the cylinder base in a penetrating mode. The e