CN216560088U - Shear pin stress detection tool - Google Patents
Shear pin stress detection tool Download PDFInfo
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- CN216560088U CN216560088U CN202123234495.9U CN202123234495U CN216560088U CN 216560088 U CN216560088 U CN 216560088U CN 202123234495 U CN202123234495 U CN 202123234495U CN 216560088 U CN216560088 U CN 216560088U
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Abstract
The utility model relates to a shear pin stress detection tool; belonging to the technical field of shear pin testing tools. The detection device comprises a detection outer cylinder and a detection inner cylinder, wherein the detection outer cylinder and the detection inner cylinder are respectively step-shaped variable diameter cylindrical bodies, circumferential ring grooves are respectively arranged on variable diameter steps of the circumference of the detection inner cylinder, a plurality of detection holes are uniformly distributed in the circumferential direction corresponding to the ring grooves on the variable diameter steps of the circumference of the detection outer cylinder, and the detection holes are communicated with the ring grooves. The shear pin stress detection tool is simple in structure and convenient to detect and operate, and can detect shear pins of different specifications and models through detection holes of different diameters and circumferential ring grooves of different widths, so that the problem that the existing detection instrument is poor in universality is solved; not only increases the detection cost, but also increases the problem of complex detection operation. The shear pin force detection device is particularly suitable for shear pin force detection.
Description
Technical Field
The utility model relates to a shear pin stress detection tool; belongs to the technical field of shear pin testing tools.
Background
The shear pin is a commonly used fixing part in an oil drilling downhole tool, and has the function that in the process of putting the downhole tool into a well, in order to prevent the action part of the downhole tool from acting in advance or unfolding, the shear pin is locked and fixed so as to facilitate the downhole tool to smoothly go into the well. After the downhole tool is downhole, the shear pin is sheared by relatively moving the actuating member by pressurizing the ground, so that the constraint on the actuating member is released and the actuating member is completely unfolded to smoothly perform the downhole operation.
Due to the fact that the underground tools are different in types, specifications and operation processes, the used shear pins are different in specifications (diameters), different in specifications (diameters) and different in stress degree, and in order to ensure that the operation tools can be smoothly unfolded underground to carry out underground operation, the stress degree of the shear pins in the same batch is detected under normal conditions; to ensure that it can be sheared downhole under set process conditions. The detection apparatus of present shear pin atress degree its commonality is relatively poor, can only detect the shear pin of single specification model, and the shear pin to different check models needs to correspond a plurality of detection apparatus, has not only increased the detection cost, has also increased the loaded down with trivial details nature of detection operation simultaneously, consequently, is necessary to improve it.
Disclosure of Invention
The utility model aims to: the shearing pin detecting device is simple in structure and convenient to detect and operate, and can detect shearing pins of different specifications and models so as to solve the problem that the existing detecting device is poor in universality; not only increased and detected the cost, also increased the shearing pin atress that detects the loaded down with trivial details nature problem of detection operation simultaneously and detected frock.
The technical scheme of the utility model is as follows:
the utility model provides a shearing pin atress detects frock, it comprises detection urceolus and detection inner tube, and the movable sleeve is equipped with detection inner tube, its characterized in that in the detection urceolus: the detection outer cylinder and the detection inner cylinder are respectively step-shaped reducing cylindrical bodies, circumferential annular grooves are respectively formed in all reducing steps of the circumference of the detection inner cylinder, a plurality of detection holes are uniformly distributed in the circumferential direction corresponding to the annular grooves in the reducing steps of the circumference of the detection outer cylinder, and the detection holes are communicated with the annular grooves.
The central hole of the detection inner cylinder is an equal-diameter through hole, and the central hole of the detection outer cylinder is a step-shaped variable-diameter through hole.
The depth of each circumferential ring groove of the detection inner cylinder is equal, and the width of each circumferential ring groove is gradually reduced from bottom to top layer by layer in the axial direction of the detection inner cylinder.
The diameter of the detection hole is gradually reduced from bottom to top in the axial direction of the detection outer barrel layer by layer.
The width of each circumferential ring groove is larger than the diameter of the corresponding detection hole.
The detection urceolus with detect the inner tube between through the contact cooperation of the reducing ladder of detecting the inner tube and the reducing ladder department that detects the urceolus centre bore, the detection urceolus that realizes with detect the axial between the inner tube spacing to guarantee the radial alignment between inspection hole and the circumference annular.
The utility model has the beneficial effects that:
the shear pin stress detection tool is simple in structure and convenient to detect and operate, and can detect shear pins of different specifications and models through detection holes of different diameters and circumferential ring grooves of different widths, so that the problem that the existing detection instrument is poor in universality is solved; not only increases the detection cost, but also increases the problem of complex detection operation. The shear pin force detection device is particularly suitable for shear pin force detection.
Drawings
FIG. 1 is a schematic cross-sectional structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the inspection inner cylinder of the present invention;
FIG. 3 is a schematic sectional view of the inspection outer cylinder of the present invention.
In the figure: 1. the method comprises the steps of detecting an outer cylinder, 2, detecting an inner cylinder, 3, a circumferential ring groove, 4, a detection hole, 5 and a shearing pin.
Detailed Description
The shear pin stress detection tool is composed of a detection outer cylinder 1 and a detection inner cylinder 2, wherein the detection outer cylinder 1 and the detection inner cylinder 2 are respectively step-shaped variable-diameter cylindrical bodies, a central hole of the detection inner cylinder 2 is an equal-diameter through hole, and a central hole of the detection outer cylinder 1 is a step-shaped variable-diameter through hole. The circumference of the detection inner cylinder 2 is provided with a circumference ring groove 3 on each diameter-changing step, the diameter-changing steps on the circumference of the detection outer cylinder 1 are circumferentially and uniformly distributed with a plurality of detection holes 4 corresponding to the ring grooves, the detection outer cylinder 1 is movably sleeved on the detection inner cylinder 2 through diameter-changing through holes, and the detection holes 4 are communicated with the ring grooves.
Because the circumferential ring grooves 3 are respectively arranged on the variable diameter steps on the circumference of the detection inner cylinder 2, the detection holes 4 are correspondingly arranged on the variable diameter steps on the circumference of the detection outer cylinder 1, the circumferential ring grooves 3 and the detection holes 4 are respectively arranged in a laminated manner on the corresponding detection inner cylinder 2 and the detection outer cylinder 1, the depth of each circumferential ring groove 3 of the detection inner cylinder 2 is equal, and the width of each circumferential ring groove 3 is gradually decreased from bottom to top layer by layer in the axial direction of the detection inner cylinder 2. The diameters of the detection holes 4 corresponding to the ring grooves on the detection outer cylinder 1 decrease gradually from bottom to top in the axial direction of the detection outer cylinder 1, wherein the diameters of the detection holes 4 of each layer are opposite; the width of each circumferential ring groove 3 is larger than the diameter of the corresponding detection hole 4.
When the shear pin stress detection tool works, the shear pin stress detection tool is firstly assembled on a working table of a hydraulic machine, the bottom of a detection inner cylinder 2 is required to be in contact with a spring cushion block of the hydraulic machine, so that the top of the detection inner cylinder 2 extends to the outer end of a detection outer cylinder 1, the detection inner cylinder 2 is ensured to keep an upward trend relative to the detection outer cylinder 1, and further the axial limit between the detection outer cylinder 1 and the detection inner cylinder 2 is realized by the contact and matching of a shoulder at the reducing step (outer) part of a central hole of the detection outer cylinder 1 and a shoulder at the reducing step (inner) part of the central hole of the detection outer cylinder 1, namely, the upward movement stroke of the detection inner cylinder 2 relative to the detection outer cylinder 1 is limited; thereby ensuring radial alignment between the inspection hole 4 and the circumferential ring groove 3; meanwhile, the shoulder at the reducing step (outer) part of the detection inner cylinder 2 is in contact fit with the shoulder at the reducing step (inner) part of the central hole of the detection outer cylinder 1, so that the sealing sliding and axial guiding of the detection outer cylinder 1 and the detection inner cylinder 2 are ensured.
After the preparation is accomplished, 3 shear pin 5 that will wait to detect are inserted by the inspection hole 4 that corresponds, and make its one end and 3 bottoms formation contacts of circumference annular that correspond, wherein, require 3 shear pin 5 to be the equipartition setting in this detection frock circumference, then the pressure head through the hydraulic press pushes down and detects inner tube 2, thereby form the shearing to shear pin 5 under the cooperation that detects urceolus 1, this in-process, the pressure of hydraulic press is recorded, after shear pin 5 is cut, divide with shear pin 5 numbers through the pressure value of exerting, can obtain the biggest stress value of single shear pin 5.
The shear pin stress detection tool is simple in structure and convenient to detect and operate, stress detection can be performed on shear pins 5 of different specifications and models through the detection holes 4 with different diameters and the circumferential ring grooves 3 with different widths, and the width of the circumferential ring grooves 3 and the diameters of the detection holes 4 corresponding to the circumferential ring grooves are different, so that the shear pin stress detection tool has good universality; the problem that the existing detection instrument is poor in universality is solved; not only increases the detection cost, but also increases the problem of complex detection operation. The shear pin stress detection tool has the characteristic of low manufacturing cost; the shear pin force detection device is particularly suitable for shear pin force detection.
Claims (6)
1. The utility model provides a shear pin atress detects frock, it comprises detection urceolus (1) and detection inner tube (2), detects urceolus (1) internalization cover and is equipped with detection inner tube (2), its characterized in that: the detection urceolus (1) with detect inner tube (2) and be the reducing tube-shaped body of echelonment respectively, be provided with circumference annular (3) on detecting each reducing ladder on inner tube (2) circumference respectively, it is that circumference equipartition has a plurality of inspection holes (4) to correspond circumference annular (3) on the reducing ladder of detection urceolus (1) circumference, inspection hole (4) and circumference annular (3) intercommunication.
2. The shear pin stress detection tool according to claim 1, characterized in that: the central hole of the detection inner cylinder (2) is an equal-diameter through hole, and the central hole of the detection outer cylinder (1) is a step-shaped variable-diameter through hole.
3. The shear pin stress detection tool according to claim 1, characterized in that: the depth of each circumferential ring groove (3) of the detection inner cylinder (2) is equal, and the width of each circumferential ring groove (3) is gradually reduced from bottom to top layer by layer in the axial direction of the detection inner cylinder (2).
4. The shear pin stress detection tool according to claim 1, characterized in that: the diameter of the detection hole (4) corresponding to each annular groove on the detection outer cylinder (1) is gradually reduced from bottom to top in the axial direction of the detection outer cylinder (1).
5. The shear pin stress detection tool according to claim 3, characterized in that: the width of each circumferential ring groove (3) is larger than the diameter of the corresponding detection hole (4).
6. The shear pin stress detection tool according to claim 3, characterized in that: the detection urceolus (1) and the contact cooperation of the reducing ladder department through the reducing ladder that detects inner tube (2) and the reducing ladder that detects urceolus (1) centre bore between detecting inner tube (2), the detection urceolus (1) that realize with detect the axial between inner tube (2) spacing to guarantee the radial alignment between inspection hole (4) and circumference annular (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123234495.9U CN216560088U (en) | 2021-12-22 | 2021-12-22 | Shear pin stress detection tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123234495.9U CN216560088U (en) | 2021-12-22 | 2021-12-22 | Shear pin stress detection tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216560088U true CN216560088U (en) | 2022-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123234495.9U Active CN216560088U (en) | 2021-12-22 | 2021-12-22 | Shear pin stress detection tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216560088U (en) |
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2021
- 2021-12-22 CN CN202123234495.9U patent/CN216560088U/en active Active
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