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

Sealing structure

A technology of sealing structure and sealing sleeve, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of oil leakage, thread seal can not achieve the sealing effect, etc., to eliminate the influence of sealing performance and achieve good sealing effect of effect

Inactive Publication Date: 2012-03-21
HARBIN DONGAN ENGINE GRP
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These sealing structures can play a certain role in sealing; however, for the sealing of aviation reducers, due to the harsh lubrication conditions such as high internal cavity pressure and large amount of lubricating oil, the thread seal often cannot achieve a good sealing effect. Very easy to make oil leak

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
  • Sealing structure
  • Sealing structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] As shown in the figure, the sealing structure includes a rotating shaft 1 , an installation housing 2 , a sealing sleeve 3 , a threaded sealing ring 4 , a rubber ring 5 and an expansion ring 6 . The rotating shaft 1 is installed on the mounting hole of the housing 2, and the sealing sleeve 3 and the left-handed thread sealing ring 4 are installed in the axial direction between the mounting hole and the rotating shaft 1, and the inner hole of the sealing sleeve is matched with the rotating shaft. It is sealed by the rubber ring 5. The sealing sleeve is press-fitted by two annular sealing rings and a ring 9 located between the two sealing rings. The cross section of the ring 9 is T-shaped, and the lower end is located between the two annular sealing rings. Between the strict rings, the upper end is located inside the annular groove and two sealing rings form two annular expansion ring grooves. A layer of oil-immersed graphite bronze 8 is sintered on both sides of the expan...

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 a sealing structure. The sealing structure comprises a rotating shaft, an installing shell, a sealing cover, a thread sealing ring, a rubber ring and annular expansion rings. The rotating shaft is arranged in an installing hole of the shell; the sealing cover and the thread sealing ring are arranged in an axial direction between the installing hole and the rotating shaft in turn; the inner hole of the sealing cover is matched with the rotating shaft and is sealed by the rubber ring; the outside diameter of the sealing cover is provided with two annular grooves and are respectively provided with two annular expansion rings; the outside diameter of each annular expansion ring is expanded in the installing hole of the shell; the side surfaces of the annular expansion rings are matched with the side surfaces of the annular grooves; a ventilating hole is formed on the installing shell; one side of the ventilating hole is connected with a compressed air source; and the other side of the ventilating hole is communicated with the two annular grooves of the sealing cover. By using the sealing structure, the influence of internal chamber pressure of a mechanism on sealing performance is eliminated, and a very good sealing effect is achieved.

Description

technical field [0001] The invention relates to a sealing structure. Background technique [0002] In the mechanical transmission mechanism, a sealing structure is often required to prevent the lubricating oil in the mechanism from leaking from the joint between the rotating shaft and the housing. Currently commonly used sealing structures include a rubber ring seal or a threaded seal or a combination of the two. These sealing structures can play a certain role in sealing; however, for the sealing of aviation reducers, due to the harsh lubrication conditions such as high internal cavity pressure and large amount of lubricating oil, the thread seal often cannot achieve a good sealing effect. Very easy to make oil leakage. Contents of the invention [0003] The object of the present invention is to provide a highly reliable sealing device, which can maintain good sealing performance under severe conditions such as high cavity pressure inside the mechanism and large amount ...

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
IPC IPC(8): F16J15/54F16J15/16
Inventor 董雪莲袁凤刚陈铁娟范洪莉苏云龙韩晓祥吴昊
Owner HARBIN DONGAN ENGINE GRP