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

Device and method for testing sealing performance of rubber O-shaped ring

A test device and ring sealing technology, which is applied in the direction of machine sealing ring testing, liquid tightness measurement using liquid/vacuum degree, etc., can solve the problems of inaccurate test results and systematic reduction of liquid volume, and achieve convenient operation and small size. The effect of small size and high detection accuracy

Pending Publication Date: 2022-07-05
CHENGDU HOLY AVIATION SCI & TECH CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Due to the large size of the test device, it is inevitable that part of the leaked liquid will adhere to the surface of the device, resulting in a systematic reduction in the volume of the leaked liquid, resulting in inaccurate test results

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
  • Device and method for testing sealing performance of rubber O-shaped ring
  • Device and method for testing sealing performance of rubber O-shaped ring
  • Device and method for testing sealing performance of rubber O-shaped ring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1. In this embodiment, as Figure 1 to Figure 3 As shown in the figure, a rubber O-ring sealing performance test device includes an upper pressure block 1 and a lower base 2 that are matched and installed. The upper pressure block 1 and the lower base 2 are fixed by fasteners 3. The said The rubber O-ring 4 is arranged between the upper pressing block 1 and the lower base 2 , and a compression cavity 5 is formed between the upper pressing block 1 , the lower base 2 and the rubber O-ring 4 .

[0041] This embodiment is further configured as follows: the upper pressing block 1 and the lower base 2 are both made of an integral molding structure, and the upper pressing block 1 includes a pressing plate 11 and a protrusion 12 fixed at the center of the pressing plate; the lower base 2 It includes a main body 21 , and the outer side of the upper end of the main body 21 has a flange plate 22 extending outward; the rubber O-ring 4 is located on the flange plate 22 .

...

Embodiment 2

[0052] Embodiment 2. This embodiment provides a test method for a rubber O-ring sealing performance test device, which includes the following steps:

[0053] S1. Measure and calculate the volume V of the compression cavity 5 formed after the rubber O-ring 4 is installed between the upper pressing block 1 and the lower base 2;

[0054] S2. Turn the opening of the concave cavity 222 of the lower base 2 upward, add the test liquid for the specified test, and add a volume of V 液 ;

[0055] S3. Place the rubber O-ring 4 to be tested on the flange plate 22 of the lower base 2 to ensure that the opening of the concave cavity 222 is located inside the rubber O-ring 4, and the center of the rubber O-ring 4 The cylindrical central axis of the cavity 222 is concentric;

[0056] S4, place the first limit ring 6 and the second limit ring 7 at the three threaded holes 221 of the lower base 2 to ensure that the threaded holes 221 are located between the first limit ring 6 and the second li...

Embodiment 3

[0064] Embodiment 3. This embodiment further increases the setting of oil pressure parameters on the basis of Embodiment 2, including the following steps:

[0065] S1. Measure and calculate the volume V of the compression cavity 5 formed after the rubber O-ring 4 is installed between the upper pressing block 1 and the lower base 2;

[0066] S2. Move the opening of the concave cavity 222 of the lower base 2 upward, and add a fixed percentage X% of the test liquid on the basis of the concave cavity 222, and add a liquid volume of V 液 (1+X%);

[0067] S3. Place the rubber O-ring 4 to be tested on the flange plate 22 of the lower base 2 to ensure that the opening of the concave cavity 222 is located inside the rubber O-ring 4, and the center of the rubber O-ring 4 The cylindrical central axis of the cavity 222 is concentric;

[0068] S4, place the first limit ring 6 and the second limit ring 7 at the three threaded holes 221 of the lower base 2 to ensure that the threaded holes ...

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 rubber O-shaped ring sealing performance test device and method, and the device comprises an upper pressing block (1) and a lower pedestal (2) which are installed in a matched manner, the upper pressing block (1) and the lower pedestal (2) are fixed through a fastener (3), a rubber O-shaped ring (4) is arranged between the upper pressing block (1) and the lower pedestal (2), and a compression cavity (5) is formed among the upper pressing block (1), the lower pedestal (2) and the rubber O-shaped ring (4); the upper pressing block (1) and the lower base (2) are both made of an integrally-formed structure, and the upper pressing block (1) comprises a pressing plate (11) and a protruding block (12) fixed to the center of the pressing plate. The lower base (2) comprises a main body (21), and a flange plate (22) extending outwards is arranged on the outer side of the upper end of the main body (21); and the rubber O-shaped ring (4) is positioned on the flange plate (22). The method has the advantage of high detection precision.

Description

technical field [0001] The invention relates to the technical field of rubber O-ring sealing performance testing, in particular to a rubber O-ring sealing performance testing device and method. Background technique [0002] Rubber O-rings are a kind of rubber products that are assembled on various mechanical equipment, under specified temperature, pressure, and in different liquid or gas media, and play a sealing role in static or moving states. It is widely used in many industries such as bathroom, ship, automobile, hardware, electronics, aviation, aerospace, machinery and so on. Among them, the sealing performance of rubber O-rings is an important index of use, and the accurate characterization of this index is of great significance for material selection and localization substitution. At present, most of the testing methods for the liquid resistance of rubber materials use GB / T 1690-2010 "Test method for liquid resistance of vulcanized rubber or thermoplastic rubber", bu...

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): G01M3/02G01M13/005
CPCG01M3/02G01M3/002G01M13/005
Inventor 张晓峰韩晨李志鹏廖珂锐徐倩倩黄勇谢佳骏张治雄张雪婷何琰阳均
Owner CHENGDU HOLY AVIATION SCI & TECH CO LTD
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