一种防转油缸结构
By introducing limiting, guiding, and measuring mechanisms into the hydraulic cylinder, the problem of piston rod rotation was solved, achieving stable extension and retraction and precise control of the piston rod.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANXI LUAN ENVIRONMENTAL ENERGY DEV CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-17
AI Technical Summary
In existing hydraulic cylinders, the piston rod is prone to rotation during use, leading to equipment malfunctions and an inability to accurately control the extension and retraction distance of the piston rod.
The system employs a limiting mechanism, a guiding mechanism, and a measuring mechanism. The piston rod is prevented from rotating by cooperating with the anti-rotation rod, and the extension and retraction distance of the piston rod is monitored by a displacement sensor.
This achieves stable extension and retraction of the piston rod, avoids rotation, and enables precise control of the piston rod's extension and retraction distance, thereby improving the equipment's reliability and control accuracy.
Smart Images
Figure CN224515535U_ABST
Abstract
Claims
1. A rotation-proof oil cylinder structure comprising a cylinder barrel (1), characterized in that: A piston rod (2) is movably inserted into the left side of the cylinder (1). A fixing pipe (4) is fixedly installed on the left side of the piston rod (2) by a first fastening bolt (3). An anti-rotation rod (6) is fixedly installed on the right side of the cylinder (1) by a second fastening bolt (5). The anti-rotation rod (6) is movably inserted into the piston rod (2). A limit mechanism (7) is provided between the anti-rotation rod (6) and the piston rod (2). A measuring mechanism (8) is installed between the middle position of the anti-rotation rod (6) and the right end of the fixing pipe (4). A guide mechanism (9) is provided between the right side of the fixing pipe (4) and the outer surface of the cylinder (1).
2. The anti-rotation cylinder structure of claim 1, wherein: Oil pipe joints (10) are fixedly installed on the upper side wall of the cylinder (1) near the left and right edges.
3. The anti-rotation cylinder structure of claim 1, wherein: Both the piston rod (2) and the fixed tube (4) are hollow structures with openings on the right side.
4. The anti-rotation cylinder structure of claim 1, wherein: The anti-rotation rod (6) is a hollow structure with an opening on the left side.
5. The anti-rotation cylinder structure of claim 1, wherein: The limiting mechanism (7) includes a clamping plate (701), a third fastening bolt (702), and a track groove (703). The clamping plate (701) is fixedly installed on the right side of the piston rod (2) by the third fastening bolt (702). Four track grooves (703) are evenly opened along the circumference on the outer surface of the anti-rotation rod (6) corresponding to the clamping plate (701). The clamping plate (701) is movably snapped into the track groove (703).
6. The anti-rotation cylinder structure of claim 1, wherein: The measuring mechanism (8) includes a displacement sensor (801), a screw plug (802), a fourth fastening bolt (803), and a magnetic ring (804). The displacement sensor (801) is fixedly installed on the right side wall of the anti-rotation rod (6) by the screw plug (802). A magnetic ring (804) is fixedly installed on the right end of the corresponding fixed pipe (4) of the displacement sensor (801) by the fourth fastening bolt (803), and the magnetic ring (804) is movably sleeved on the outside of the displacement sensor (801).
7. The anti-rotation cylinder structure of claim 6, wherein: A magnetic shielding pad (11) is installed between the right side of the fixed pipe fitting (4) and the left side of the magnetic ring (804).
8. The anti-rotation cylinder structure of claim 1, wherein: The guiding mechanism (9) includes a guide plate (901) and a guide rod (902). The guide plate (901) is fixedly installed on the left edge of the outer surface of the cylinder (1). The guide rod (902) is fixedly installed on the right side of the fixed pipe (4) near the front and rear middle positions, and the guide rod (902) is movably inserted into the guide plate (901).