Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Sealing method of compression packing with density gradient and compression packing thereof

A technology of density gradient and density, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc., to achieve the effects of avoiding insufficient compression, simple production, and stable friction coefficient

Active Publication Date: 2018-07-27
NINGBO TIANSHENG SEALING PACKING +2
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the movement of the shaft, the looser packing on the inner side will undergo secondary compaction, and on the contrary, the denser packing on the outer end will become looser.

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 method of compression packing with density gradient and compression packing thereof
  • Sealing method of compression packing with density gradient and compression packing thereof
  • Sealing method of compression packing with density gradient and compression packing thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Further illustrate the present invention below in conjunction with accompanying drawing

[0020] Referring to the attached picture:

[0021] A sealing method for compressed packing with a density gradient, comprising the following steps:

[0022] Step 1, the strip filler is placed in the forming mold according to a certain weight and size (this strip filler can be the raw material used when the original process prepares the filler),

[0023] Step 2: Compress the annular packing ring with a press, and the forming height of the packing ring can be precisely controlled by a predetermined height of the gasket stopper during pressing, so as to obtain the packing ring with the required density;

[0024] Step 3, stacking the packing rings along the stress direction, and along the force direction, the density of the packing rings increases one by one.

[0025] The compression packing produced according to the above method is characterized in that: it is composed of several pa...

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

A sealing method of the compression padding with the density gradient comprises the first step of placing the strip-shaped padding in a forming mold according to a certain weight and a certain size, the second step of pressing the strip-shaped padding into annular padding rings through a press, wherein the forming height of the padding rings can be accurately controlled through a liner stop piece with the preset height in the pressing process so that the padding rings with the required densities can be obtained, and the third step of making the padding rings overlap in the force bearing direction, wherein the densities of the padding rings sequentially increase one by one in the force bearing direction. The invention further comprises the compression padding produced according to the method, wherein the compression padding is composed of the padding rings overlapping in the force bearing direction, and the densities of the padding rings sequentially increase one by one in the force bearing direction.

Description

technical field [0001] The invention relates to a compression packing and a sealing method thereof, which belong to the technical field of seals and can be widely used in fluid sealing occasions such as rotating shaft seals and reciprocating shaft seals. Background technique [0002] Compression packing seals are also called packing seals and gland packing seals. Its sealing structure is simple, the source of materials is wide, the installation and maintenance are convenient, and the price is low, so it is widely used in centrifugal pumps, vacuum pumps, mixers, reactors and ship propellers, etc. Motion shaft seal, and rotary seal of various valve stems, etc. [0003] The density of the compressed packing before and after installation is an important factor affecting the performance of the packing seal. The packing seal is to install the packing in the stuffing box, expand the packing in the radial direction through the gland, and then stick to the shaft surface to prevent t...

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): F16J15/20
Inventor 励行根沈明学乐秀辉励洁彭旭东顾春辉
Owner NINGBO TIANSHENG SEALING PACKING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com