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Telescopic rotary hydraulic cylinder

A technology of telescopic rotation and hydraulic cylinders, which is applied in the field of hydraulic cylinders, can solve problems such as high cost and complex structure of the overall hydraulic system, and achieve the effects of improving local stress concentration, improving operation stability and reliability, and ensuring stability

Active Publication Date: 2022-05-06
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used method is to realize the rotation of the hydraulic cylinder by adding other hydraulic systems, or using valve groups and other auxiliary mechanisms, which has the disadvantages of complex structure and high cost of the overall hydraulic system.

Method used

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  • Telescopic rotary hydraulic cylinder
  • Telescopic rotary hydraulic cylinder

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Embodiment Construction

[0021] As shown in the figure: the telescopic rotary hydraulic cylinder in this embodiment includes a cylinder body 1, a piston 2, a piston rod 3 and end caps 4 covering both ends of the cylinder body, the piston rod and the end caps can be axially sealed and slid and The inner side of the end cover is connected with a rotating assembly for being driven and rotated by hydraulic oil injected into or out of the cylinder, and a guide rod 5 axially penetrating the piston is arranged in the cylinder, and the guide The rod is axially slidably matched with the piston, and both ends of the guide rod are connected to the rotating assembly to rotate synchronously with the rotating assembly. combine figure 1 As shown, the outer circle of the piston and the inner circle of the piston cylinder are axially slid and sealed through the sealing ring, and at the same time the piston and the inner circle of the piston cylinder are also rotationally matched, and the corresponding piston rod and t...

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Abstract

The invention discloses a telescopic and rotary hydraulic cylinder, which comprises a cylinder body, a piston, a piston rod and end caps covering both ends of the cylinder body. , the inner side of the end cover is connected with a rotating component that is driven to rotate by the hydraulic oil injected into or out of the cylinder, the cylinder is provided with a guide rod that axially slides through the piston, and both ends of the guide rod are connected to the rotating The component rotates synchronously with the rotating component; the present invention uses the hydraulic oil when the hydraulic oil is injected or flowed out as the power, which can drive the piston to slide axially and also drive the piston to rotate, without the need for other external power equipment for driving the rotation of the piston rod. In cooperation with the guide rod, the circumferential force can be applied to the piston, and the axial resistance to the piston can also be reduced, and the local stress concentration of the piston can be improved, so that the axial sliding of the piston is smooth, and the operation stability of the entire hydraulic cylinder is improved. reliability.

Description

technical field [0001] The invention relates to the technical field of hydraulic cylinders, in particular to a telescopic rotary hydraulic cylinder. Background technique [0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy. When it is used to realize reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap, and the movement is stable. It is widely used in hydraulic systems of various machines. The traditional hydraulic cylinder includes a cylinder body, a piston and a piston rod. There are oil inlet and outlet ports on the cylinder body. The movement of the piston and piston rod is realized through the entry and exit of hydraulic oil, and various control functions are realized through external components. The hydraulic rod The motions are linear motions, and the driven external components also do linear motions. [0003] In the actual production process, many external component...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B15/17F15B15/14
CPCF15B15/17F15B15/1442F15B15/1461F15B15/1447F15B15/1423
Inventor 曹川川杨国来伍国果柴红强曹文斌张杰冒越颖姚恒星
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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