Novel Anti-loosening structure of hydraulic cylinder piston

• Main Authors: ZHENG JIAHAI, WANG HONGLIN, CHEN XIAOFEI, WANG XIANGYONG, XING LIANYUN
• Format: Patent
• Language: Chinese; English
• Published: 25.06.2014
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING; ENGINEERING ELEMENTS AND UNITS; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model discloses a novel anti-loosening structure of a hydraulic cylinder piston and belongs to the technical field of hydraulic cylinders. The anti-loosening structure overcomes the defect that a piston in the prior art is prone to repeated stressing and loosening. The novel anti-loosening structure of the hydraulic cylinder piston comprises a piston rod, a cylinder barrel and a piston. A threaded hole is formed in the radial direction of the piston, and an annular groove is formed in the piston rod and corresponds to the threaded hole in the piston in position. A screw is arranged in the threaded hole, and the lower end of the screw is screwed into the annular groove. A pressing block is arranged above the screw in the threaded hole, a bearing ring groove is formed above the threaded hole, and a bearing ring is arranged in the bearing ring groove. When applied to a hydraulic cylinder, the anti-loosening structure guarantees tight connection and reliable locking between the piston and the piston r