| 摘要 |
PURPOSE: A hydraulic cylinder with an enhanced piston loosening prevention structure is provided to ensure a simplified structure by preventing the loosening of a piston using a spacer without a piston nut. CONSTITUTION: A hydraulic cylinder(10) with an enhanced piston loosening prevention structure comprises a loosening prevention unit which prevents a piston(30) from loosening and separating from a rod(20). The loosening prevention unit comprises a locking groove(24) formed on the periphery of one end of the rod, a coupling groove(32) which is formed on the side of the piston, a spacer(40) which supports a side of the piston and is inserted in the locking groove, and a fastening member(50) which is thread-coupled to the coupling groove via an assembling hole of the spacer in order to join the spacer and the piston. |
