CN201681021U - Axial extension test clamp of thin wall pipe - Google Patents
Axial extension test clamp of thin wall pipe Download PDFInfo
- Publication number
- CN201681021U CN201681021U CN2010201915170U CN201020191517U CN201681021U CN 201681021 U CN201681021 U CN 201681021U CN 2010201915170 U CN2010201915170 U CN 2010201915170U CN 201020191517 U CN201020191517 U CN 201020191517U CN 201681021 U CN201681021 U CN 201681021U
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- CN
- China
- Prior art keywords
- nut
- web member
- mose
- connection piece
- morse
- 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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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to an axial extension test clamp of a thin wall pipe, which comprises a Mose taper connection piece with a clamp hole axially arranged at one end, a screw fixed and axially connected with the other end of the Mose taper connection piece, a nut threaded with the screw, a clamping sleeve slidably sleeved on the Mose taper connection piece, and a flexible mechanism positioned between the nut and the clamping sleeve, wherein the flexible mechanism is matched with the nut to limit the position of the clamping sleeve on the Mose taper connection piece. When the axial extension test is carried out, two sets of the clamps of the utility model are required, the two ends of a pipe body to be tested are respectively inserted into the clamp hole of the Mose taper connection piece of the clamp, the nut is adjusted, under the propulsion of the nut, the flexible mechanism further propels the clamping sleeve so that the clamp hole and the pipe body are in close fit, the fastening force required by the axial extension of a sample is met, a pipe body sample to be tested is prevented from generating axial slip during the loading process, and the test is ensured to be smoothly carried out.
Description
Technical field
The utility model relates to a kind of anchor clamps, relates in particular to a kind of anchor clamps that the thin walled tube axon is used to tensile property that are used to test.
Background technology
We know, for the pipe fitting that uses under the different occasions, need measure its hoop and the size that axially can meet with stresses.When carrying out the axial tension test, must the two ends of body be clamped by anchor clamps, thereby carry out the loading of axial force by cupping machine.Mostly existing anchor clamps are to carry out at solid bar-shaped sample, and for the zircaloy thin walled tube that needs in the nuclear reactor to use, because its tube wall size is less, that common is 9.5mm * 0.57mm, can't get solid bar-shaped test and carry out tension test, and the existing anchor clamps in laboratory can't effectively clamp it as the homogeneous tube tensile sample, thereby can not guarantee carrying out smoothly of thin walled tube axial tension test.
The utility model content
The purpose of this utility model is to provide a kind of the realization that thereby effective clamping of thin-walled tubule is guaranteed the anchor clamps that the axial tension test is carried out smoothly.
For achieving the above object, the technical scheme that the utility model adopted is: a kind of thin walled tube axial tension test fixture, the nut that it comprises screw rod that an end axially offers the Morse tapering web member of clamping hole, fixes with the other end of described Morse tapering web member and axially connect, be threaded mutually with described screw rod, be set in the chuck on the described Morse tapering web member, the telescoping mechanism between nut and chuck slidably, described telescoping mechanism matches with nut and is used to limit the position of described chuck on Morse tapering web member.
Further, described telescoping mechanism comprises the spring that is set on the Morse tapering web member, is positioned at both ends of the spring and is set in locating part on the Morse tapering web member slidably.
Described each locating part offers the groove of accommodating the spring respective end.
Because the employing of technique scheme, the utility model compared with prior art has the following advantages: when carrying out the axial tension test, need two covers anchor clamps of the present utility model, body to be measured two ends are inserted respectively in the clamping hole of Morse tapering web member of anchor clamps, setting nut, under the propelling of nut, telescoping mechanism further promotes chuck, make drive fit between clamping hole and the body, satisfy the desired fastening force of sample axial tension, avoid body sample to be measured in loading procedure, to take place axially to skid, the carrying out smoothly of warranty test.
Description of drawings
Accompanying drawing 1 is the axial cut-open view of the utility model thin walled tube axial tension test fixture;
Accompanying drawing 2 is the user mode figure of the utility model thin walled tube axial tension test fixture;
Wherein: 1, Morse tapering web member; 11, clamping hole; 2, screw rod; 3, nut; 4, chuck; 5, telescoping mechanism; 51, spring; 52, locating part; 521, groove; 10, body sample;
Embodiment
Below in conjunction with accompanying drawing concrete enforcement of the present utility model is described:
As shown in Figure 1 be used for thin walled tube axial tension test fixture, the nut 3 that comprises screw rod 2 that an end axially offers the Morse tapering web member 1 of clamping hole 11, is fixedly connected with the other end of Morse tapering web member 1, is threaded mutually with screw rod 2, be set in the chuck 4 on the Morse tapering web member 1, the telescoping mechanism 5 between nut 3 and chuck 4 slidably, wherein, described Morse tapering web member 1 is used for stationary fit with accurate location for tapering meets the web member of international standard.Clamping hole 11 taperings of Morse tapering web member 1 are very little, utilize the principle of friction force, can transmit certain fastening force, again because be taper fit, so can dismantle easily.Morse's taper has 0,1,2,3,4,5,6 seven totally numbers models, and the different model taper value has certain variation, and in the present embodiment, the Morse tapering of Morse tapering web member 1 is chosen as No. 2.
Described telescoping mechanism 5 comprises the spring 51 that is set on the Morse tapering web member 1, be positioned at spring 51 two ends is set in locating part 52 on the Morse tapering web member 1 slidably, each locating part 52 offers the groove 521 of accommodating spring 51 respective end, during use, telescoping mechanism 5 matches with nut 3 and is used to limit the position of chuck 4 on Morse tapering web member 1.
The concrete operations mode is as follows:
As shown in Figure 2, when needs carry out tension test, need use the anchor clamps of two cover present embodiments, body sample to be measured 10 two ends are injected respectively in the clamping hole 11 of Morse tapering web member 1, difference is precession two nuts 3 opposite to each other, under the propelling of nut 3, locating part 52 stressed also move toward one another, therefore spring 51 is compressed further promotion chuck 5 and moves to the end of Morse tapering web member 1, thereby gradually body sample 10 is clamped, after two sleeve clamps are adjusted respectively, two screw rods 2 is installed on the cupping machine respectively loads load deflection speed 1mm/min; When needs carry out high temperature tension test, thermopair is bind on the sample, and is as the criterion with this thermopair and carries out the control of specimen temperature.When specimen temperature is heated to 400 ℃ of set points of temperature, be incubated 30 minutes, carry out above-mentioned loading again, can carry out record to the load displacement curve of body in the loading procedure, can record the axial mechanical property of whole tubing by record data.
The foregoing description only is explanation technical conceive of the present utility model and characteristics; its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this; can not limit protection domain of the present utility model with this; all equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (4)
1. thin walled tube axial tension test fixture, it is characterized in that: it comprises that an end axially offers the Morse tapering web member (1) of clamping hole (11), the screw rod (2) that fixes and axially be connected with the other end of described Morse tapering web member (1), the nut (3) that is threaded mutually with described screw rod (2), be set in the chuck (4) on the described Morse tapering web member (1) slidably, be positioned at the telescoping mechanism (5) between nut (3) and the chuck (4), described telescoping mechanism (5) matches with nut (3) and is used to limit the position of described chuck (4) on Morse tapering web member (1).
2. a kind of thin walled tube axial tension test fixture according to claim 1 is characterized in that: described telescoping mechanism (5) comprises the spring (51) that is set on the Morse tapering web member (1), be positioned at spring (51) two ends is set in locating part (52) on the Morse tapering web member (1) slidably.
3. a kind of thin walled tube axial tension test fixture according to claim 2 is characterized in that: described each locating part (52) offers the groove (521) of accommodating spring (51) respective end.
4. a kind of thin walled tube axial tension test fixture according to claim 1 is characterized in that: described Morse tapering web member (1) model is No. 2 Morse taperings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201915170U CN201681021U (en) | 2010-05-14 | 2010-05-14 | Axial extension test clamp of thin wall pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201915170U CN201681021U (en) | 2010-05-14 | 2010-05-14 | Axial extension test clamp of thin wall pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201681021U true CN201681021U (en) | 2010-12-22 |
Family
ID=43346061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201915170U Expired - Fee Related CN201681021U (en) | 2010-05-14 | 2010-05-14 | Axial extension test clamp of thin wall pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201681021U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388062B (en) * | 2015-11-26 | 2019-03-01 | 中国航空工业集团公司北京航空材料研究院 | A kind of specimen holder of pull test tubing or bar |
| CN110726613A (en) * | 2019-10-21 | 2020-01-24 | 吉林大学 | Tensile extensometer suitable for major diameter thin wall pipe |
-
2010
- 2010-05-14 CN CN2010201915170U patent/CN201681021U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388062B (en) * | 2015-11-26 | 2019-03-01 | 中国航空工业集团公司北京航空材料研究院 | A kind of specimen holder of pull test tubing or bar |
| CN110726613A (en) * | 2019-10-21 | 2020-01-24 | 吉林大学 | Tensile extensometer suitable for major diameter thin wall pipe |
| CN110726613B (en) * | 2019-10-21 | 2024-06-07 | 吉林大学 | Stretching extensometer suitable for large-diameter thin-wall round tube |
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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: 20101222 Termination date: 20130514 |