CN218412031U - Tensile strain measuring device for petroleum pipe coupling loading test - Google Patents
Tensile strain measuring device for petroleum pipe coupling loading test Download PDFInfo
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- CN218412031U CN218412031U CN202221980055.XU CN202221980055U CN218412031U CN 218412031 U CN218412031 U CN 218412031U CN 202221980055 U CN202221980055 U CN 202221980055U CN 218412031 U CN218412031 U CN 218412031U
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- guide device
- sliding
- petroleum pipe
- tensile strain
- displacement sensor
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Abstract
The utility model relates to a tensile strain measuring device for petroleum pipe coupling loading test, which comprises two supports, a hinged guide device which can be extended and slid, a displacement sensor, two sets of clamps and a hoop; two ends of the petroleum pipe are respectively provided with an anchor ear, the two supports are respectively arranged on the anchor ears at the two ends of the petroleum pipe, the telescopic sliding hinged guide device is connected between the two supports, and the displacement sensor is arranged at the lower part of the telescopic sliding hinged guide device in parallel through the two slide blocks and is driven by the guide device to freely stretch and retract; the upper ends of the two sliding blocks are provided with pipe clamps; the displacement sensor, the guide device and the petroleum pipe are all arranged in parallel. The utility model discloses can carry out the accurate measurement to the tensile dependent variable when the oil pipe coupling is experimental. The structure can be wholly or partially scaled, so that the test requirement of the full-coverage all-specification coupling can be met.
Description
Technical Field
The utility model relates to a, specific tensile strain measuring device is used in petroleum pipe coupling loading test that says so.
Background
In order to analyze the influence of the working life of an oil pipe on the mechanical property of the oil pipe, the oil pipe test piece needs to be subjected to a tensile test for judging whether the oil pipe meets the mechanical property requirement or not, and how to quickly and accurately test oil pipes with different steel grades is a problem to be solved.
Disclosure of Invention
The utility model discloses aim at overcoming prior art's defect, provide a tensile strain measuring device for petroleum pipe coupling loading test, can carry out the accuracy measurement to the tensile strain when oil pipe coupling is experimental.
In order to solve the technical problem, the utility model discloses a realize like this:
the utility model provides a tensile strain measuring device for petroleum pipe coupling loading test which characterized in that: the device comprises two supports, a hinge guide device capable of stretching and sliding, a displacement sensor, two sets of clamps and a hoop; two ends of the petroleum pipe are respectively provided with an anchor ear, two supports are respectively arranged on the anchor ears at the two ends of the petroleum pipe, a hinged guide device capable of stretching and sliding is connected between the two supports, and a displacement sensor is arranged at the lower part of the hinged guide device capable of stretching and sliding in parallel through two sliding blocks and is driven by the guide device to freely stretch and retract; the upper ends of the two sliding blocks are provided with pipe clamps; the displacement sensor, the guide device and the petroleum pipe are all arranged in parallel.
The telescopic sliding hinged guide device comprises a bearing, a sliding sleeve and a sliding rod; one end of the sliding rod is provided with a sliding sleeve and is connected with the support through a bearing, and the other end of the sliding rod is connected with the other support through a bearing.
And two ends of the displacement sensor are connected with the lower end of the sliding block through screws and nuts.
The support is connected with the hoop through a screw, and a spring washer is arranged between the screw and the hoop.
In order to eliminate the installation precision and reduce the system error caused by accidental failures of displacement sensors and the like as much as possible, the number of the tensile strain detection devices is at least two.
The beneficial effects of the utility model are that: the device can meet the test requirements of all specifications of coupling by scaling the structure wholly or locally, and can quickly and accurately measure the stretching of the oil pipe.
Drawings
The invention will be described in further detail with reference to the following drawings and embodiments:
fig. 1 is a schematic structural diagram of the present application.
Fig. 2 is a schematic side view of fig. 1.
FIG. 3 isbase:Sub>A schematic view of the direction A-A in FIG. 1.
FIG. 4 is a schematic view of the direction B-B in FIG. 1.
Detailed Description
As shown in fig. 1-4: the tensile strain capacity during the tubing coupling test can be accurately measured according to the test requirements of different steel-grade tubing couplings within a certain pipe diameter range. The test requirements of all-specification coupling test can be met by scaling the structure wholly or locally, and the patent takes the common couplings with pipe diameters of 9-5/8 'and 10-3/4' as representatives for explanation.
A tensile strain measuring device for a petroleum pipe coupling loading test comprises two support seats 3, a hinge guide device capable of stretching and sliding, a displacement sensor 7, two sets of clamps and a hoop 10; the both ends of petroleum pipe are equipped with the staple bolt respectively, and two supports are installed respectively on the staple bolt at petroleum pipe both ends, and on the support passed through 1 connection staple bolts of screw, be equipped with spring washer 2 between screw and the staple bolt.
The telescopic sliding hinged guide device comprises a bearing 4, a sliding sleeve 5 and a sliding rod 6; one end of the sliding rod is provided with a sliding sleeve and is connected with the support through a bearing, and the other end of the sliding rod is connected with the other support through a bearing. The displacement sensor is arranged on the lower part of the telescopic sliding hinge guide device in parallel through two sliding blocks, and two ends of the displacement sensor are connected with the lower ends of the sliding blocks through screws 1 and nuts; the guiding device drives the telescopic mechanism to freely extend and retract; the upper ends of the two sliding blocks are provided with pipe clamps 11 connected through screws 1; the displacement sensor, the guide device and the petroleum pipe are all arranged in parallel.
The tensile strain measuring device is arranged close to the outer wall of the coupling test tube, the tensile strain measuring device is provided with two sets, the two sets are arranged in parallel at 90 degrees along the axial direction of the coupling test tube, and the two sets of the same detecting devices can slide and stretch. Each set of detection device comprises a left mounting support, a right mounting support, a set of telescopic sliding hinged guide device, a displacement sensor, two sets of clamps and the like, and the hoops at the left end and the right end are shared as supports. The support is firmly and tightly connected with the hoop, the hoop is firmly and tightly connected with the oil pipe, the displacement sensor is precisely hinged with the guide device, the guide device is precisely hinged with the support, the displacement sensor, the guide device and the coupling oil pipe are parallel in pairs, and the guide device can drive the displacement sensor to freely stretch out and draw back. During the tensile test, the axial tensile deformation of the coupling oil pipe can be accurately transmitted to the displacement sensor. The reading change value deltas of the displacement sensor = axial tensile deformation deltal of a test workpiece, and two or more groups of detection devices can be arranged in the same test in order to eliminate the mounting precision and reduce system errors caused by accidental failures of the displacement sensor and the like as far as possible. When Δ s1 ≈ Δ s2, we consider the measured data as valid measurement data. And taking the average value of the two data as an actual measured value of the tensile deformation, namely a calculated value of the strain.
Claims (5)
1. The utility model provides a tensile strain measuring device for petroleum pipe coupling loading test which characterized in that: the device comprises two supports, a hinge guide device capable of stretching and sliding, a displacement sensor, two sets of clamps and a hoop; two ends of the petroleum pipe are respectively provided with an anchor ear, two supports are respectively arranged on the anchor ears at the two ends of the petroleum pipe, a hinged guide device capable of stretching and sliding is connected between the two supports, and a displacement sensor is arranged at the lower part of the hinged guide device capable of stretching and sliding in parallel through two sliding blocks and is driven by the guide device to freely stretch and retract; the upper ends of the two sliding blocks are provided with pipe clamps; the displacement sensor, the guide device and the petroleum pipe are all arranged in parallel.
2. The tensile strain measuring device for a petroleum pipe coupling loading test according to claim 1, wherein: the telescopic sliding hinged guide device comprises a bearing, a sliding sleeve and a sliding rod; one end of the sliding rod is provided with a sliding sleeve and is connected with the support through a bearing, and the other end of the sliding rod is connected with the other support through a bearing.
3. The tensile strain measuring device for a petroleum pipe coupling loading test according to claim 1, wherein: and two ends of the displacement sensor are connected with the lower end of the sliding block through screws and nuts.
4. The tensile strain measuring device for a petroleum pipe coupling loading test according to claim 1, wherein: the support passes through on the screw connection staple bolt, is equipped with spring washer between screw and the staple bolt.
5. The tensile strain measuring device for a petroleum pipe coupling loading test according to claim 1, wherein: the number of the tensile strain detection devices is at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221980055.XU CN218412031U (en) | 2022-07-29 | 2022-07-29 | Tensile strain measuring device for petroleum pipe coupling loading test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221980055.XU CN218412031U (en) | 2022-07-29 | 2022-07-29 | Tensile strain measuring device for petroleum pipe coupling loading test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218412031U true CN218412031U (en) | 2023-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221980055.XU Active CN218412031U (en) | 2022-07-29 | 2022-07-29 | Tensile strain measuring device for petroleum pipe coupling loading test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218412031U (en) |
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2022
- 2022-07-29 CN CN202221980055.XU patent/CN218412031U/en active Active
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