CN201637639U - Small-type annular constant stress gauge - Google Patents
Small-type annular constant stress gauge Download PDFInfo
- Publication number
- CN201637639U CN201637639U CN2010201529715U CN201020152971U CN201637639U CN 201637639 U CN201637639 U CN 201637639U CN 2010201529715 U CN2010201529715 U CN 2010201529715U CN 201020152971 U CN201020152971 U CN 201020152971U CN 201637639 U CN201637639 U CN 201637639U
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- Prior art keywords
- stress
- cutting ferrule
- pull rod
- pull bar
- utility
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- Expired - Lifetime
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Abstract
The utility model discloses a small-sized annular constant stress gauge, comprising a stress ring and a pull rod, wherein the pull rod passes through the stress ring, is provided with a cutting ferrule and is provided with external threads; the pull rod is connected with a nut through the external threads; the cutting ferrule is arranged at the lower end of the pull rod and is in clamping connection with the upper end of an experimental material; the lower end of the experimental material passes through the stress ring and is in clamping connection with the lower cutting ferrule; and the stress ring is contacted with the cutting ferrule. The utility model has the advantages that the device has small size and compact structure and can be directly placed in an autoclave to carry out high-temperature and high-pressure material stress corrosion experiments for simulating an actual work condition environment; by adopting a structure for connecting the cutting ferrule with the pull rod, the utility model is convenient to load the experimental material and accelerate the experiment process; and by adopting a classical stress ring loading form, the precision of the applied stress can be ensured and the constant load can be always kept during the experiment period.
Description
Technical field
The utility model relates to a kind of device that carries out the material stress test under particular surroundingss such as High Temperature High Pressure, especially relates to a kind of small, annular constant stress instrument.
Background technology
The ring-type stress ga(u)ge is used for the laboratory and carries out the material stress test, and its function is to load permanent load and keep this permanent load at duration of test always for test material.
Existing ring-type stress ga(u)ge majority is about accessories such as the metal stresses ring of 200mm, last lower link and nonmetal experiment container and constitutes by external diameter.During test, the test(ing) medium in the test portion immersion test container of test material, it can only carry out the stress corrosion (cracking) test under the normal temperature and pressure.Because down-hole, well head and gathering line pressure and temperature are higher in the oil-gas mining, often contain band and press corrosive gas, construction material need be simulated the stress corrosion (cracking) test of actual conditions such as High Temperature High Pressure, corrosion environment.And the design of existing its test chamber of ring-type stress ga(u)ge can't be carried out the pressure test of high temperate zone, and be subjected to its structural limitations, ring-type stress ga(u)ge size is bigger, the autoclave commonly used of also can not packing into carries out the High Temperature High Pressure stress test, can not satisfy the requirement that construction material is tested in the simulation actual condition.
The utility model content
The utility model has overcome shortcoming of the prior art, and a kind of small, annular constant stress instrument is provided, compact conformation, and build is less, can directly put into autoclave and carry out the material stress test.
The technical solution of the utility model is: a kind of small, annular constant stress instrument, comprise stress loop and pull bar, and described pull bar passes stress loop, and described pull bar is band cutting ferrule pull bar, and pull bar is provided with external thread, is connected with nut by external thread; Be provided with cutting ferrule in the pull bar lower end, described cutting ferrule is that cassette is connected with the upper end of test material; Stress loop is passed in the lower end of test material, is connected with following cutting ferrule cassette, and stress loop contacts with following cutting ferrule.
Between described nut and stress loop, be provided with pad, on described pad, fixed measuring point be set.
Compared with prior art, the utility model has the advantages that: removed the nonmetal experiment container of existing ring-type stress ga(u)ge, by cutting ferrule directly is set on last lower link, and stress loop adopts particular surroundings materials such as high temperature high voltage resistant.Adopt the external structure of this loading nut, make ring-type constant stress instrument whole test plant bulk reduce compact conformation; Adopt cutting ferrule pull bar syndeton, be convenient to test material and load, and accelerate process of the test; Adopt these structures, ring-type stress ga(u)ge whole test plant bulk is reduced, compact conformation, easy to loading and unloading, can directly put into the material stress corrosion test that autoclave carries out simulation actual condition environment such as High Temperature High Pressure to experiment instrument and test specimen together, be used for easily loading permanent load and keep this permanent load always at duration of test for test material.Can carry out the anticorrosion stress-resistant test of material in the particular surroundingss such as high temperature, high pressure, sulfide hydrogen, carbonated.
And owing between nut and stress loop, be provided with pad, on pad, fixed measuring point can be set, by Displaying Meter more intuitively the deflection of counter stress ring measure.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is a structural representation of the present utility model.
Embodiment
Disclosed all features in this instructions, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this instructions (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
As shown in Figure 1, a kind of small, annular constant stress instrument comprises stress loop 4 and pull bar 1, and pull bar passes stress loop, and described pull bar is band cutting ferrule pull bar, and pull bar is provided with external thread, is connected with nut 2 by external thread; Being provided with cutting ferrule in the pull bar lower end, is that cassette is connected with the upper end of test material 6, and stress loop is passed in the lower end of test material 6, is connected with following cutting ferrule 8 cassettes, and stress loop contacts with following cutting ferrule.
Between nut 2 and stress loop 4, pad 3 can also be set, on pad, fixed measuring point can also be set.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (2)
1. a small, annular constant stress instrument comprises stress loop and pull bar, and described pull bar passes stress loop, it is characterized in that: described pull bar is band cutting ferrule pull bar, and pull bar is provided with external thread, is connected with nut by external thread; Be provided with cutting ferrule in the pull bar lower end, described cutting ferrule is that cassette is connected with the upper end of test material; Stress loop is passed in the lower end of test material, is connected with following cutting ferrule cassette, and stress loop contacts with following cutting ferrule.
2. small, annular constant stress instrument according to claim 1 is characterized in that: be provided with pad between described nut and stress loop, on described pad fixed measuring point be set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201529715U CN201637639U (en) | 2010-04-08 | 2010-04-08 | Small-type annular constant stress gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201529715U CN201637639U (en) | 2010-04-08 | 2010-04-08 | Small-type annular constant stress gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201637639U true CN201637639U (en) | 2010-11-17 |
Family
ID=43082143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201529715U Expired - Lifetime CN201637639U (en) | 2010-04-08 | 2010-04-08 | Small-type annular constant stress gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201637639U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364287A (en) * | 2013-07-02 | 2013-10-23 | 上海交通大学 | Sulfuretted hydrogen stress corrosion resisting test loading method |
| CN104697873A (en) * | 2015-03-06 | 2015-06-10 | 合肥通用机械研究院 | Sulfide stress corrosion cracking testing apparatus |
-
2010
- 2010-04-08 CN CN2010201529715U patent/CN201637639U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364287A (en) * | 2013-07-02 | 2013-10-23 | 上海交通大学 | Sulfuretted hydrogen stress corrosion resisting test loading method |
| CN103364287B (en) * | 2013-07-02 | 2015-08-12 | 上海交通大学 | A kind of anti-H 2 S stress corrosion test loading method |
| CN104697873A (en) * | 2015-03-06 | 2015-06-10 | 合肥通用机械研究院 | Sulfide stress corrosion cracking testing apparatus |
| CN104697873B (en) * | 2015-03-06 | 2017-08-25 | 合肥通用机械研究院 | A kind of sulfide-stress cracking experimental rig |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180119 Address after: 610041 Chengdu high tech Zone, Sichuan province sublimation Road No. 6 Patentee after: China Petroleum Engineering Construction Co Ltd Address before: 610017 Sichuan province Chengdu Xiaoguan Temple Backstreet No. 25 Patentee before: Engineering Design Co., Ltd., China Petroleum Group |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101117 |