CN201386734Y - Stress compensation compound gasket - Google Patents
Stress compensation compound gasket Download PDFInfo
- Publication number
- CN201386734Y CN201386734Y CN200920012788U CN200920012788U CN201386734Y CN 201386734 Y CN201386734 Y CN 201386734Y CN 200920012788 U CN200920012788 U CN 200920012788U CN 200920012788 U CN200920012788 U CN 200920012788U CN 201386734 Y CN201386734 Y CN 201386734Y
- Authority
- CN
- China
- Prior art keywords
- ring
- stress compensation
- compound gasket
- circular ring
- stress
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a stress compensation compound gasket. An inner circle is arranged in a circular groove-shaped space of an outer circle, a circular ring of the inner circle is arranged on the top of the circular groove-shaped space of the outer circle, the external diameter of the circular ring of the inner circle is slightly smaller than the internal diameter of a short pipe of the outer circle, corresponding circular ring-shaped elastic compensation filling is arranged in a circular ring-shaped space arranged between the inner ring and the outer ring, and the best elastic compensation filling is flexible expansion graphite rings, has better corrosion resistance and high-temperature stability and can ensure the normal and stable operation of the stress compensation compound gasket, and meanwhile, the stress compensation compound gasket has better bolt load fluctuation compensation regulation capability, can resist external shock load change, ensure relatively stable bolt load and maintain the normal operation of a whole fastening piece.
Description
Technical field
The utility model relates to a kind of pad of fastening piece.
Background technique
At present, fastening piece pad commonly used has three kinds: 1. planar metal pad, 2. metal spring pad, 3. dish-shaped pad.Wherein the planar metal pad does not have the passive regulating power of bolt load, has only metal spring pad, dish-shaped pad to regulate bolt load within the specific limits.But it also has deficiency: 1, when fastening piece is in running order, sometimes because outside cause causes the bolt load variation excessive, as external impacts, thermal shocking etc., this moment, fluctuation surpassed bolt self-deformation compensation ability as impulsive load, can cause fastening inefficacy.2, metal spring pad, disk spring pad are in the high-temperature and high-stress environment for a long time, owing to creep causes performance degradation.3, in the stress corrosion environment, metal spring pad, disk spring pad that internal stress is very high very easily damage.Above-mentioned three kinds cause fastening failure conditions, and consequence all is very serious.
Summary of the invention
The purpose of this utility model is to provide a kind of high temperature resistant, anticorrosion stress-resistant, can resist the external impact load change, keep the stress compensation compound gasket of fastening piece proper functioning.
The utility model mainly is to reach a kind of fastening piece compound gasket that constitutes with the parts that its body is located by the elastic compensating filler.Stress compensation compound gasket of the present utility model mainly includes outer ring, inner ring and elastic compensating filler.Wherein, the outer ring is made up of an annulus and an end and the vertical coaxial short tube that links to each other of this annulus outer shroud, and the internal diameter of this annulus makes it and can be enclosed within outside the bolt shank greater than the diameter of bolt shank.Be provided with inner ring in the circular groove shape space of above-mentioned outer ring, this inner ring is made up of the vertical coaxial short tube that links to each other of ring in an annulus and an end and this annulus, and the annulus of this inner ring and the internal diameter of pipe are a bit larger tham the diameter of bolt shank, make it and can be enclosed within outside the bolt shank.Simultaneously, the inner ring annulus is positioned at outer ring circular groove shape top of space, and inner ring annulus external diameter is slightly smaller than outer ring short tube internal diameter, so that make the inner ring annulus be positioned at the outer ring.Between Internal and external cycle, in the folded annular space, be provided with the ring elastic compensating filler corresponding with it.This elastic compensating filler can be chosen different products according to the operating conditions of bolt, as air ring, flexible expanded graphite ring and high viscosity semifluid ring with support frame, these elastic compensating materials are all flexible, when its at work during suffered STRESS VARIATION, can deformation carry out stress compensation, therefore also can be referred to as stress-buffering material.
Nut during use in the bolt pair contacts with the inner ring anchor ring, bolt load by inner ring be passed to the elastic compensating filler and under reach the outer ring, affact on the fastener that is in contact with it by the outer ring again, finish fastening effect.When bolt load was subjected to impacting, the elastic compensating filler in the stress compensation compound gasket can utilize the variable density of self to play the accumulation of energy effect, thereby guaranteed that bolt load is relatively stable.
The utility model compared with prior art has following advantage: 1, the elastic compensating filler of stress compensation compound gasket has good corrosion resistance and high-temperature stability, but proof stress compensation compound gasket is working properly stable.2, the stress compensation compound gasket has the passive Compensation Regulation ability of good bolt load, can resist the external impact load change, guarantees that bolt load is relatively stable, keeps whole fastening piece proper functioning.
Description of drawings
Fig. 1 is that user mode master of the present utility model looks generalized section.
Embodiment
Look in the generalized section stress compensation compound gasket user mode master shown in Figure 1, in the circular groove shape space of outer ring 1, be provided with inner ring 2, the annulus of this inner ring and the internal diameter of pipe are a bit larger tham the diameter of bolt shank 3, simultaneously, the inner ring annulus is positioned at outer ring circular groove shape top of space, and inner ring annulus external diameter is slightly smaller than outer ring short tube internal diameter, is provided with the ring elastic compensating filler 4 corresponding with it in the folded annular space between Internal and external cycle, and this elastic compensating filler is the flexible expanded graphite ring.
Claims (2)
1 one kinds of stress compensation compound gaskets, it is characterized in that: in the circular groove shape space of outer ring, be provided with inner ring, this inner ring annulus is positioned at outer ring circular groove shape top of space, and inner ring annulus external diameter is slightly smaller than outer ring short tube internal diameter, is provided with the ring elastic compensating filler corresponding with it in the folded annular space between Internal and external cycle.
2 stress compensation compound gaskets according to claim 1 is characterized in that: the elastic compensating filler is the flexible expanded graphite ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920012788U CN201386734Y (en) | 2009-04-06 | 2009-04-06 | Stress compensation compound gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920012788U CN201386734Y (en) | 2009-04-06 | 2009-04-06 | Stress compensation compound gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201386734Y true CN201386734Y (en) | 2010-01-20 |
Family
ID=41579268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920012788U Expired - Fee Related CN201386734Y (en) | 2009-04-06 | 2009-04-06 | Stress compensation compound gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201386734Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107548573A (en) * | 2015-07-31 | 2018-01-05 | 惠普发展公司，有限责任合伙企业 | Printed circuit board (PCB) is to the junction surface of mold compound |
-
2009
- 2009-04-06 CN CN200920012788U patent/CN201386734Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107548573A (en) * | 2015-07-31 | 2018-01-05 | 惠普发展公司，有限责任合伙企业 | Printed circuit board (PCB) is to the junction surface of mold compound |
| US10342140B2 (en) | 2015-07-31 | 2019-07-02 | Hewlett-Packard Development Company, L.P. | Printed circuit board to molded compound interface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100120 Termination date: 20130406 |