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Rotary oil cylinder capable of preventing travel regulation rod from falling

A technology of stroke adjustment and rotating oil cylinder, applied in the direction of fluid pressure actuating device, etc., can solve the problems of oil leakage, human and object injury, failure and other problems of rotating oil cylinder, and achieve the effect of solving safety hazards, avoiding falling off, and avoiding oil leakage

Active Publication Date: 2015-03-04
SHENYANG NORTHEAST ELECTRIC POWER CONTROL
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

This structure is easy to install, but there is a relatively big problem: when the oil pressure is far greater than the maximum force that the thread of the stroke adjustment rod can withstand, the stroke adjustment rod is easy to fall off from the limit end cover, and the falling stroke adjustment rod is easy to be damaged. The surrounding people and objects cause injury, and at the same time, it also causes oil leakage and failure of the rotary cylinder

Method used

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  • Rotary oil cylinder capable of preventing travel regulation rod from falling
  • Rotary oil cylinder capable of preventing travel regulation rod from falling

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Embodiment Construction

[0009] See figure 1 , It includes two limit end caps 1 and two stroke adjustment rods 2, see figure 2 Each stroke adjustment rod includes a polished rod 21 and a screw 22, and each limit end cover includes a light hole 11 and a threaded hole 12. The diameter of the polished rod on each stroke adjustment rod is larger than the diameter of the screw, and the polished rod and the light hole form a stop 4 structure. Due to the stop structure provided on the stroke adjusting rod, even if the thread on the stroke adjusting rod fails, the stroke adjusting rod will not fall off from the limit end cover of the oil cylinder.

[0010] In order to prevent the stroke adjusting rod from being over-twisted inward, an elastic retaining ring 3 for the shaft is added to the part of the stroke adjusting rod exposed to the outside.

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Abstract

The invention provides a rotary oil cylinder capable of preventing a travel regulation rod from falling, and aims to solve a problem that the travel regulation rod falls. The rotary oil cylinder has key points that the diameter of a polish rod is greater than the diameter of a screw on each travel regulation rod, and a seam allowance structure is formed by the polish rod and an aperture. Since the seam allowance structure is arranged, even if threads on the travel regulation rod fail, the travel regulation rod does not fall from an oil cylinder spacing end cover. The rotary oil cylinder has the active effects that insecurity caused by that the travel regulation rod falls is avoided, and meanwhile, an oil leakage problem generated since the travel regulation rod falls can be avoided.

Description

Technical field [0001] The invention relates to a rotary oil cylinder, in particular to a stroke adjustment rod of the rotary oil cylinder. Background technique [0002] The hydraulic rotary cylinder is a kind of using hydraulic oil to push the piston, the piston drives the rack, and the rack drives the gear to output rotational displacement and torque. Generally, the maximum rotation angle of such a rotating cylinder is greater than the rotation angle of the driven object. In order to match the angle of the rotating cylinder with the driven object, a stroke adjustment rod is set on the two limit end covers of the rotating cylinder to facilitate the adjustment of the actual output angle of the rotating cylinder. Specifically, each stroke adjustment rod includes a polished rod And the screw, the polished rod has a smaller diameter than the screw. The corresponding limit end caps also include light holes and threaded holes. The method to install the stroke adjustment rod on the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/20F15B15/28
CPCF15B15/20F15B15/28
Inventor 刘宝军郑学明刘观华雷利
Owner SHENYANG NORTHEAST ELECTRIC POWER CONTROL
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