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Double-acting multi-stage hydraulic cylinder with built-in telescopic oil pipe

A hydraulic cylinder and double-acting technology, which is applied in the field of hydraulic systems, can solve problems such as mechanical scratches and wear, and achieve the effect of increasing strength and expanding the scope of application

Pending Publication Date: 2021-06-22
梁新宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current hydraulic cylinders mainly include single-stage hydraulic cylinders, multi-stage hydraulic cylinders, single-acting and double-acting hydraulic cylinders, etc. Among them, double-acting multi-stage hydraulic cylinders mostly have front-end oil inlet hoses that are easy to scratch and wear with machinery after shrinking. disadvantages

Method used

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  • Double-acting multi-stage hydraulic cylinder with built-in telescopic oil pipe
  • Double-acting multi-stage hydraulic cylinder with built-in telescopic oil pipe
  • Double-acting multi-stage hydraulic cylinder with built-in telescopic oil pipe

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Embodiment 1

[0024] Such as Figure 1-3 A double-acting multi-stage hydraulic cylinder with a built-in telescopic oil pipe, including oil port A (1), oil port B (13), a first-stage cylinder base (21), a first-stage cylinder jacking oil cavity (2), a first-stage Oil pipe (22) in the center of the cylinder, piston (23) of the first stage cylinder, jacking oil cavity (4) of the second stage cylinder, oil pipe (24) in the center of the second stage cylinder, piston (25) of the second stage cylinder, jacking up of the third stage cylinder Oil chamber (6), third-stage cylinder middle oil pipe (26), third-stage cylinder piston (27), second-stage cylinder jacking oil chamber oil passage (3), third-stage cylinder jacking oil chamber oil passage (5), The third-stage cylinder shrinkage oil chamber oil passage (8), the third-stage cylinder shrinkage oil chamber (7), the second-stage cylinder shrinkage oil chamber oil passage (10), the second-stage cylinder shrinkage oil chamber (9), the first-stage cy...

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Abstract

The invention discloses a double-acting multi-stage hydraulic cylinder with a built-in telescopic oil pipe, and is widely applied to mechanical equipment. An existing double-acting multi-stage hydraulic cylinder mostly has the defect that a front oil inlet hose is easy to be scratched and worn with machinery during contraction, and according to another hydraulic cylinder, a hole is drilled in a cylinder barrel to replace an oil pipe, so that the strength of the cylinder barrel is reduced. According to the double-acting multi-stage hydraulic cylinder, a middle oil pipe is installed in the double-acting multi-stage hydraulic cylinder to overcome the defects, so that the structure is more reasonable, and the application range is wider.

Description

technical field [0001] The invention relates to the field of hydraulic systems, mainly to hydraulic cylinders, and in particular to a double-acting multi-stage hydraulic cylinder with built-in telescopic oil pipes. Background technique [0002] The hydraulic cylinder is an actuator of the hydraulic system, which converts the liquid pressure energy provided by the hydraulic pump into the mechanical energy of reciprocating motion. Liquid is the medium for transmitting force and motion. Hydraulic cylinders are mainly used in crane mechanical arms, dump trucks, construction machinery, construction machinery, coal mining machinery, mining machinery, metallurgical machinery, ship machinery, petrochemical, port machinery and other fields. [0003] The current hydraulic cylinders mainly include single-stage hydraulic cylinders, multi-stage hydraulic cylinders, single-acting and double-acting hydraulic cylinders, etc. Among them, double-acting multi-stage hydraulic cylinders mostly h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/16F15B15/20
CPCF15B15/1428F15B15/1476F15B15/149F15B15/16
Inventor 梁新宇
Owner 梁新宇