Aerostatic bearing guiding cylinder without friction interference

An aerostatic bearing, frictionless technology, applied in the direction of fluid pressure actuators, etc., can solve problems such as performance defects

Inactive Publication Date: 2012-03-14
CHINA PRECISION ENG INST FOR AIRCRAFT IND AVIC
View PDF5 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional apron-sealed cylinder structure has the characteristics of simple and reliable structure, low manufacturing cost, and low requirements for use conditions. It has a wide range of applications, but it has certain performance defects in occasions that require precise motion control.

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
  • Aerostatic bearing guiding cylinder without friction interference
  • Aerostatic bearing guiding cylinder without friction interference
  • Aerostatic bearing guiding cylinder without friction interference

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The technical scheme of the present invention will be described in further detail below in conjunction with accompanying drawing and embodiment:

[0015] See attached figure 2 As shown, this kind of aerostatic bearing-guided frictionless interference cylinder includes a cylinder liner 4 and its air supply hole 13, a piston rod 1, a piston 5 and a piston rod guide sleeve 6, and is characterized in that: between the piston rod guide sleeve 6 and the piston rod On the annular inner surface in contact with the rod 1, there are piston rod guiding aerostatic bearing secondary air chambers 7 uniformly arranged radially along the circumference, and each piston rod guiding aerostatic bearing secondary air chamber 7 is processed on the piston rod guiding The radial piston rod guide bearing throttle hole 2 in the sleeve 6 is connected with the air supply nozzle 8, so that an aerostatic bearing pair is formed between the piston rod 1 and the guide sleeve 6. In addition, the piston...

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 relates to an aerostatic bearing guiding cylinder without friction interference. In the cylinder, a sliding guiding structure and a rubber ring sealing structure adopted by the traditional cylinder mechanism are changed, linear aerostatic bearing guiding replaces the traditional sliding guiding, and clearance sealing replaces the traditional rubber ring sealing, thus, a frictional force generated when a piston and a piston rod move relatively is greatly reduced, the influence of friction interference force on movement precision is weakened, and the accurate and precise control capacity of the acting force of the cylinder is improved.

Description

technical field [0001] The invention is an aerostatic bearing-guided frictionless interference cylinder, which belongs to the technical field of product structure. Background technique [0002] Cylinders are commonly used actuators in industrial products for displacement transmission and thrust control. In some occasions, accurate and constant control of the thrust of the cylinder is required. Due to the influence of friction caused by the rubber ring seal and sliding guide used in the traditional cylinder structure, the cylinder thrust cannot achieve accurate, precise and constant control; since the direction of the sliding friction force is always opposite to the direction of motion, the actual thrust of the cylinder is affected by The interference of the frictional force cannot achieve constant; and the frictional force is a nonlinear force, the actual thrust of the cylinder cannot be accurately and precisely controlled. [0003] Traditional cylinders such as figure 1 ...

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 Applications(China)
IPC IPC(8): F15B15/14F15B15/20
Inventor 房建国张建明李迪
Owner CHINA PRECISION ENG INST FOR AIRCRAFT IND AVIC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap