Unlock instant, AI-driven research and patent intelligence for your innovation.

A fast and stable positioning gas-hydraulic cylinder

A gas-liquid cylinder and stable speed technology, which is applied in the field of gas-liquid cylinders, can solve the problems of poor precision, controllability and low accuracy, and achieve the effect of high precision, compact structure and fast travel

Active Publication Date: 2019-01-01
TIANJIN SHANGJI HYDRAULIC PRESSURE EQUIP
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention aims to propose a fast and stable positioning gas-hydraulic cylinder to solve the problems of poor position accuracy, controllability and low accuracy of the gas-liquid cylinder push rod in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A fast and stable positioning gas-hydraulic cylinder
  • A fast and stable positioning gas-hydraulic cylinder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 As shown, a fast and stable positioning gas-hydraulic cylinder includes a working cylinder 1. The upper end of the working cylinder 1 is provided with an upper cover 11, the lower end is provided with a lower cover 12, and the middle is provided with a middle cover 13; between the upper cover 11 and the middle cover 13 A lower piston 15 is arranged between the lower cover 12 and the middle cover 13, a return cavity 19 is formed between the lower piston 15 and the lower cover 12, and a stroke cavity 18 is formed between the lower piston 15 and the lower cover 13; the middle cover 13 There is a first valve body 131 inside, and the oil storage chamber 17 and the stroke chamber 18 are connected with the first valve body 131; the lower piston 15 is connected with a push rod 151, and the push rod 151 passes through the lower cover 12 and extends out of the cylinder body; An oil retainer 112 is also provided in the oil chamber 17 , and the oil retainer 112 is ...

Embodiment 2

[0039] Such as figure 2 As shown, a fast and stable positioning gas-hydraulic cylinder includes a working cylinder 1. The upper end of the working cylinder 1 is provided with an upper cover 11, the lower end is provided with a lower cover 12, and the middle is provided with a middle cover 13; between the upper cover 11 and the middle cover 13 A lower piston 15 is arranged between the lower cover 12 and the middle cover 13, a return cavity 19 is formed between the lower piston 15 and the lower cover 12, and a stroke cavity 18 is formed between the lower piston 15 and the lower cover 13; the middle cover 13 There is a first valve body 131 inside, and the oil storage chamber 17 and the stroke chamber 18 are connected with the first valve body 131; the lower piston 15 is connected with a push rod 151, and the push rod 151 passes through the lower cover 12 and extends out of the cylinder body; There is also an upper piston 14 between the cover 11 and the middle cover 13 for gas-li...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a fast and steady-speed positioning pneumatic hydraulic cylinder. The fast and steady-speed positioning pneumatic hydraulic cylinder comprises a working cylinder; an upper cover is arranged on an upper end of the working cylinder, while a lower cover is arranged on a lower end of the working cylinder and a middle cover is arranged in the middle of the same; an oil storage cavity is formed between the upper cover and the middle cover; a lower piston is arranged between the lower cover and the middle cover; a return cavity is formed between the lower piston and the lower cover, while a travel cavity is formed between the lower piston and the middle cover; a first valve body is arranged in the middle cover, and the oil storage cavity and the travel cavity both are connected with the first valve body; a push rod is connected to the lower piston and passes through the lower cover to extend out of the cylinder body; a first channel is formed in the upper cover to enable the interior of the cylinder body to communicate with a pre-pressure pipeline; and a second channel is formed in the lower cover to connect the interior of the cylinder body with a return pipeline. By means of the solution, the first valve body is provided to realize emergency stop of the push rod in any position, and furthermore, the push rod is high in accuracy and steady in running; the first valve body is built-in, and is compact in structure, high in reliability and low in cost; furthermore, the fast and steady-speed positioning pneumatic hydraulic cylinder realizes complete isolation of a gas and a liquid, and controllable switching of fast travel, mild-speed positioning and fast return.

Description

technical field [0001] The invention belongs to the field of gas-liquid cylinders, in particular to a fast and stable positioning gas-liquid cylinder. Background technique [0002] In the prior art, gas-liquid cylinders are widely used in mechanical processing, packaging and other industries, but the existing gas-liquid cylinders have problems such as complex structure, poor gas-liquid isolation effect, and high energy consumption, especially the position accuracy of the push rod movement. Poor, the speed is not adjustable, it cannot realize emergency stop and accurate positioning at any position, the controllability is poor, the reliability is not high, and the working efficiency of the gas-hydraulic cylinder is low. Contents of the invention [0003] In view of this, the present invention aims to propose a fast and stable positioning air-hydraulic cylinder to solve the problems of poor position accuracy of the push rod of the air-hydraulic cylinder and low controllabilit...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F15B15/14F15B15/20
CPCF15B15/1404F15B15/1409F15B15/20
Inventor 何云柱李忠为李皞
Owner TIANJIN SHANGJI HYDRAULIC PRESSURE EQUIP