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

Non-contact type rotary sealing structure

A rotary sealing, non-contact technology, applied in the direction of engine seals, bearing components, engine components, etc., can solve problems such as damage to seals and rotating parts, failure of sealing structures, etc., and achieve the effect of improving service life

Active Publication Date: 2017-12-15
GUANGZHOU HAOZHI ELECTROMECHANICAL
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the design of existing sealing structures, contact sealing structures are generally used for high-speed rotating seals. However, due to the long-term contact between the rotating parts and the sealing parts in the existing contact seals, there is friction during use. , During the high-speed rotation of the rotating part, a large amount of heat will be generated on the contact surface, which will easily damage the seal and the rotating part, resulting in failure of the sealing structure

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
  • Non-contact type rotary sealing structure
  • Non-contact type rotary sealing structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Below, the present invention will be further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of not conflicting, the various embodiments described below or the technical features can be combined arbitrarily to form new embodiments. .

[0018] Such as Figure 1-2 As shown, in order to improve the service life of the rotating shaft 20 and the sealing seat 10, and at the same time meet the sealing requirements of the rotating shaft 20 during rotation, the present invention provides a non-contact rotating sealing structure, which includes a sealing The seat 10 and the rotating shaft 20; the rotating shaft 20 is movable through the sealing seat 10, and a gap 11 is formed between the rotating shaft 20 and the sealing seat 10 along the length direction of the rotating shaft 20; one end cover of the sealing seat 10 is provided with a pressure sleeve 30. In this example, the rotating shaft 2...

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 discloses a non-contact type rotary sealing structure. The non-contact type rotary sealing structure comprises a sealing base and a rotation shaft. The rotation shaft movably penetrates the sealing base so that a gap can be formed between the rotation shaft and the sealing base in the length direction of the rotation shaft. A pressing sleeve covers one end of the sealing base. An air inlet is formed in the pressing sleeve. The pressing sleeve is internally provided with a first air way communicating with the air inlet. The sealing base is internally provided with a second air way communicating with the first air way and the gap. A plurality of expansion cavities communicating with the gap are formed in the circumferential direction of the circumference face in the sealing base. The multiple expansion cavities are arranged at intervals in the gap length direction. The diameter of the first air way and the diameter of the second air way are larger than the gap width. The volume of the expansion cavities is larger than the width of the gap, the service life of the rotation shaft and the sealing base is prolonged, and air tightness of the rotation shaft in the rotation process is guaranteed.

Description

technical field [0001] The invention relates to a seal, in particular to a non-contact rotary seal structure. Background technique [0002] At present, in the design of existing sealing structures, contact sealing structures are generally used for high-speed rotating seals. However, due to the long-term contact between the rotating parts and the sealing parts in the existing contact seals, there is friction during use. , During the high-speed rotation of the rotating part, a large amount of heat will be generated on the contact surface, which will easily damage the seal and the rotating part, resulting in failure of the sealing structure. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a non-contact rotary sealing structure, which meets the sealing requirements under high-speed rotation, is not easily damaged, and has a long service life. [0004] The purpose of the present inven...

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): F16J15/40F16C35/06
CPCF16C35/06F16J15/40
Inventor 高强汤秀清
Owner GUANGZHOU HAOZHI ELECTROMECHANICAL