Torque surface calibration reference device for oil pipe female buckle

Abstract

The utility model discloses an oil pipe female thread torque surface calibration reference device, which is used for calibrating an oil pipe measuring tool, and comprises a reference component, a transition component, a length fixing component and a length adjusting component, the reference component is annular, the inner diameter surface of the reference component is provided with a shoulder bulge along the axial direction, and the shoulder bulge of the reference component is provided with an inclined surface; the lower end of the transition component is mounted on the reference component, a reference transition surface is arranged on the inner diameter surface of the transition component, the reference transition surface is conical, and the inner diameter of the reference transition surface is small at the lower part and large at the upper part; the fixed-length component is installed on the upper end face of the transition component, an annular transition inclined conical protrusion extending inwards in the radial direction is arranged at the end, making contact with the transition component, of the fixed-length component, and the annular transition inclined conical protrusion is connected with the upper end of the datum transition face. The tool can provide a calibration reference for a measuring tool, and is suitable for calibration of torque surfaces of oil pipe female buckles of various specifications.

Description

Technical Field

[0001] The utility model relates to a calibration reference device for the torque surface of the female coupling of an oil pipe, belonging to the technical field of reference equipment. Background Art

[0002] At present, in the production process of oil pipes, all indicators are crucial. Due to the diversity of oil pipe specifications, different specifications of oil pipes require different calibration parameters.

[0003] After retrieving the prior art, it is found that a Chinese patent with the publication number CN211317175U discloses a calibration reference device for oil pipe thread measurement. This patent provides a calibration reference for oil pipe thread measurement, but it is not suitable for measuring the torque surface of the female coupling of an oil pipe. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a calibration reference device for the torque surface of the female coupling of an oil pipe, which can provide a calibration reference for measuring tools and is suitable for calibrating the torque surfaces of female couplings of multiple specifications of oil pipes.

[0005] To solve the above technical problem, the technical solution of the utility model is: a calibration reference device for the torque surface of the female coupling of an oil pipe, used for calibrating an oil pipe measuring tool, comprising:

[0006] A reference member, the reference member is annular, and a shoulder protrusion is provided on its inner diameter surface extending upward along the axis. An inclined surface is provided on the shoulder protrusion of the reference member.

[0007] A transition member, the lower end of the transition member is installed on the reference member. A reference transition surface is provided on the inner diameter surface of the transition member. The reference transition surface is conical, and its inner diameter size is smaller at the bottom and larger at the top.

[0008] A fixed-length member, the fixed-length member is installed on the upper end surface of the transition member. One end of the fixed-length member in contact with the transition member is provided with an annular transition inclined conical protrusion extending radially inward. The annular transition inclined conical protrusion is connected to the upper end of the reference transition surface. The fixed-length member is provided with a reference transition extension surface on the annular transition inclined conical protrusion.

[0009] A length adjustment member, the length adjustment member is detachably installed on the fixed-length member.

[0010] The inclined surface, the reference transition surface and the reference transition extension surface are continuously transitioned to jointly form a calibration reference surface.

[0011] When the reference member, the transition member, the fixed-length member, and the selectively installable length adjustment member are assembled together, the axial distance between the upper end surface of the fixed-length member or the upper end surface of the length adjustment member and the calibration reference surface constitutes the calibration reference length.

[0012] Furthermore, in order to achieve flexible adjustment of the calibration length, the length adjustment member includes a plurality of detachable adjustment blocks;

[0013] The plurality of adjustment blocks have different axial lengths;

[0014] The adjustment blocks are adapted to be selectively stacked above the fixed-length member to adjust the calibration reference length.

[0015] Furthermore, in order to ensure stability during stacking, the inner diameter and outer diameter of each adjustment block are respectively the same as the inner diameter and outer diameter of the fixed-length member.

[0016] Furthermore, at least one axially penetrating threaded hole is provided on the adjustment block;

[0017] Adjacent adjustment blocks are connected by fasteners passing through the threaded holes.

[0018] Furthermore, in order to enhance the connection stability between the adjustment blocks, threaded blind holes corresponding to the threaded holes of the adjustment blocks are provided on the upper surface of the fixed-length member;

[0019] The fasteners are adapted to pass through the uppermost adjustment block and the selectively stacked adjustment blocks and be connected to the threaded blind holes of the fixed-length member.

[0020] Furthermore, both the threaded holes of the adjustment blocks and the threaded blind holes of the fixed-length member are provided with four.

[0021] Furthermore, in order to facilitate the embedding and flatness retention of the fastener head, counterbores are provided at the openings at both ends of each threaded hole of the adjustment block.

[0022] Furthermore, the included angle between the inclined surface of the shoulder projection of the reference member and the lower end surface of the reference member is 15 degrees.

[0023] Furthermore, the reference member, the transition member, and the fixed-length member have the same outer diameter size.

[0024] Adopting the above technical solutions, the utility model has the following beneficial effects:

[0025] In the present utility model, the calibration reference length is flexibly selected according to the specifications of the tubing female thread to ensure adaptation to the measurement requirements of tubing female threads of different specifications. When the selected tubing female thread specification conforms to the size of the fixed-length component, the length adjustment component is not installed, and the reference component, transition component, and fixed-length component are assembled together for measurement. At this time, a tubing measuring tool is used to measure the torque surface calibration reference device of the assembled tubing female thread, and the length from the upper end surface of the fixed-length component to each point of the calibration reference surface is used as the zero reference. Then, the calibrated measuring tool is used to measure the torque surface of the tubing female thread to be measured to obtain the data of the tubing female thread to be measured.

[0026] When other specifications of tubing female threads are selected, appropriate length adjustment components are selected according to the specifications of the tubing female threads and installed on the fixed-length component. At this time, a tubing measuring tool is used to measure the length from the upper end surface of the length adjustment component to each point of the calibration reference surface as the new zero reference. Then, similarly, the calibrated tubing measuring tool is used to measure the torque surface of the tubing female thread to be measured to obtain accurate measurement data. The present utility model can flexibly adjust the calibration reference length, is applicable to tubing of different specifications, significantly improves the versatility, and ensures the reliability and accuracy of the measurement.

[0027] In addition, the length adjustment component is composed of multiple detachable adjustment blocks. By stacking different numbers of adjustment blocks, various axial length adjustments can be achieved. The adjustment blocks are connected by threaded holes and fasteners to ensure high stability of the stacked structure and facilitate installation and disassembly by users. This modular design enables the device to quickly adapt to different measurement requirements and further enhances the convenience of operation.

[0028] In summary, the present utility model realizes the flexible adjustment of the calibration reference for multi-specification torque surfaces through the combined design of the reference component, transition component, fixed-length component, and length adjustment component, improving the calibration accuracy and versatility. It has a stable structure, simple operation, high calibration accuracy, and good adaptability and reliability. Description of the Drawings

[0029] Figure 1 is a cross-section of the torque surface calibration reference device for the tubing female thread of the present utility model Figure 1 ;

[0030] Figure 2 is Figure 1 a partial enlarged view of part A in

[0031] Figure 3 is a cross-section of the torque surface calibration reference device for the tubing female thread of the present utility model Figure 2 ;

[0032] Figure 4This is the front view of the reference device for calibrating the torque surface of the female coupling of the tubing of the present utility model. Specific embodiments

[0033] In order to make the content of the present utility model easier to be clearly understood, the following further describes the present utility model in detail according to specific embodiments and in conjunction with the accompanying drawings.

[0034] As Figures 1-4 shown, a reference device for calibrating the torque surface of the female coupling of the tubing, used for calibrating tubing measuring tools, includes:

[0035] A reference member 1, the reference member 1 is in an annular shape, and a shoulder projection is provided on the inner diameter surface thereof extending axially upward. An L-shaped groove extending circumferentially along the circumference is provided on the outer diameter of the reference member 1 on the side close to the shoulder projection. The opening of the L-shaped groove faces the upper end of the reference member 1. An inclined surface 11 is provided on the shoulder projection of the reference member 1;

[0036] A transition member 2, the lower end of the transition member 2 is installed on the L-shaped groove of the reference member 1. A reference transition surface 21 is provided on the inner diameter surface of the transition member 2. The reference transition surface 21 is in a conical shape, and its inner diameter dimension is smaller at the lower part and larger at the upper part;

[0037] A fixed-length member 3, the fixed-length member 3 is installed on the upper end surface of the transition member 2. An annular transition inclined conical projection extending radially inward is provided at one end of the fixed-length member 3 in contact with the transition member 2. The annular transition inclined conical projection is connected to the upper end of the reference transition surface 21. A reference transition extension surface 31 is provided on the annular transition inclined conical projection of the fixed-length member 3;

[0038] A length adjustment member 4, the length adjustment member 4 is detachably installed on the fixed-length member 3;

[0039] The inclined surface 11, the reference transition surface 21 and the reference transition extension surface 31 are continuously transitioned to jointly form a calibration reference surface;

[0040] When the reference member 1, the transition member 2, the fixed-length member 3 and the optionally installed length adjustment member 4 are assembled together, the axial distance between the upper end surface of the fixed-length member 3 or the upper end surface of the length adjustment member 4 and the calibration reference surface constitutes the calibration reference length.

[0041] In this embodiment, as Figures 1-2 and Figure 4As shown, flexibly select the calibration reference length according to the specifications of the tubing coupling to be measured to ensure it meets the measurement requirements of tubing couplings of different specifications. When the selected tubing coupling specification matches the size of the fixed-length component 3, the length adjustment component 4 is not installed, and the reference component 1, transition component 2, and fixed-length component 3 are assembled together for measurement. At this time, use a tubing measuring tool to measure the torque surface calibration reference device of the assembled tubing coupling, and the length from the upper end surface of the fixed-length component 3 to each point on the calibration reference surface is used as the zero reference. Then, use the calibrated measuring tool to measure the torque surface of the tubing coupling to be measured to obtain the data of the tubing coupling to be measured.

[0042] When selecting tubing couplings of other specifications, select the appropriate length adjustment component 4 according to the specifications of the tubing coupling and install it on the fixed-length component 3. At this time, use a tubing measuring tool to measure the length from the upper end surface of the length adjustment component 4 to each point on the calibration reference surface as the new zero reference. Then, similarly, use the calibrated tubing measuring tool to measure the torque surface of the tubing coupling to be measured to obtain accurate measurement data.

[0043] In this embodiment, the reference component 1, transition component 2, and fixed-length component 3 can be integrally formed.

[0044] In this embodiment, Figure 1 At the bottom is the calibration reference for the tubing coupling of φ60.32*4.83 - 8.53, including the reference component 1, transition component 2, and fixed-length component 3. In addition, stacked upward in turn can meet the use of tubing couplings of specifications φ73.02*5.51, φ

[0045] 73.02*7.01 - 7.82, φ88.9*4.32 - 7.34, φ88.9*4.32 - 9.52, φ114.3*5.69 - 8.56. And through permutation and combination, it meets the requirements of calibration references for torque surfaces of tubing couplings of different specifications.

[0046] Specifically, as Figures 1-2 and Figure 4 shown, the length adjustment component 4 includes five detachable adjustment blocks;

[0047] The multiple adjustment blocks have different axial lengths;

[0048] The adjustment blocks are adapted to be selectively stacked above the fixed-length component 3 to adjust the calibration reference length.

[0049] In this embodiment, during use, the user can select different lengths of adjustment blocks for combination according to the actual measurement needs of the tubing coupling.

[0050] In some embodiments, the number of adjustment blocks is not limited to five and can be set according to specific requirements.

[0051] Specifically, as Figure 3 shown, there are four axially penetrating threaded holes on the adjusting block;

[0052] Adjacent adjusting blocks are connected by fasteners 5 passing through the threaded holes.

[0053] Specifically, as Figures 1-3 shown, there are threaded blind holes corresponding to the threaded holes of the adjusting block on the upper surface of the fixed-length member 3;

[0054] The fastener 5 is adapted to pass through the uppermost adjusting block and selectively stacked adjusting blocks and connect to the threaded blind holes of the fixed-length member 3.

[0055] Specifically, as Figures 1-2 shown, there are four threaded holes in both the adjusting block and the fixed-length member 3.

[0056] Specifically, there are counterbores at both ends of the opening of each threaded hole of the adjusting block.

[0057] In this embodiment, as Figures 1-2 shown, there are four threaded holes and threaded blind holes in both the adjusting block and the fixed-length member 3. These four holes are evenly arranged along the circumference and are in a cross shape. The evenly distributed threaded holes can effectively disperse the force. In addition, there are counterbores at both ends of the opening of each threaded hole of the adjusting block. The function of the counterbore is to make the head of the fastener flush with the surface of the adjusting block, avoiding the exposure of the fastener and affecting the use.

[0058] In some embodiments, the number of threaded holes and threaded blind holes is not limited to four and can be set according to specific requirements.

[0059] Specifically, as Figures 1-2 shown, the included angle between the inclined surface 11 of the shoulder protrusion of the reference member 1 and the lower end surface of the reference member 1 is 15 degrees.

[0060] In this embodiment, as Figures 1-2 shown, the included angle between the reference transition extension surface 31 of the fixed-length member 3 and the lower end surface of the fixed-length member 3 is 45 degrees.

[0061] Specifically, as Figures 1-2 shown, the inner diameter and outer diameter of each adjusting block are the same as those of the fixed-length member 3 respectively.

[0062] Specifically, as Figures 1-2 shown, the reference member 1, the transition member 2, and the fixed-length member 3 have the same outer diameter size.

[0063] In this embodiment, as Figures 1-2As shown, the outer diameters of the reference member 1, the transition member 2, the fixed-length member 3, and all the adjusting blocks are 78 mm. Of course, in some embodiments, the size of the outer diameter is not limited to 78 mm and can be set according to specific requirements.

[0064] In the specific embodiments described above, the technical problems solved, the technical solutions, and the beneficial effects of the present utility model have been further described in detail. It should be understood that the above are only specific embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A calibration reference device for the torque surface of the female thread of an oil pipe, which is used to calibrate measuring tools for oil pipes, is characterized in that, Comprising: A reference member (1), the reference member (1) being annular, with a shoulder projection provided axially upward on its inner diameter surface, and an inclined surface (11) provided on the shoulder projection of the reference member (1); A transition member (2), the lower end of the transition member (2) being installed on the reference member (1), a reference transition surface (21) being provided on the inner diameter surface of the transition member (2), the reference transition surface (21) being conical with a smaller inner diameter dimension at the bottom and a larger inner diameter dimension at the top; A fixed-length member (3), the fixed-length member (3) being installed on the upper end surface of the transition member (2), an annular transition inclined conical projection extending radially inward being provided at one end of the fixed-length member (3) in contact with the transition member (2), the annular transition inclined conical projection being connected to the upper end of the reference transition surface (21), and a reference transition extension surface (31) being provided on the fixed-length member (3) on the annular transition inclined conical projection; A length adjustment member (4), the length adjustment member (4) being detachably installed on the fixed-length member (3); The inclined surface (11), the reference transition surface (21), and the reference transition extension surface (31) are continuously transitioned to jointly form a calibration reference surface; When the reference member (1), the transition member (2), the fixed-length member (3), and the optionally installed length adjustment member (4) are assembled together, the axial distance between the upper end surface of the fixed-length member (3) or the upper end surface of the length adjustment member (4) and the calibration reference surface constitutes a calibration reference length.

2. The tubing female thread torque surface calibration reference device according to claim 1, characterized in that The length adjustment member (4) includes a plurality of detachable adjustment blocks; The plurality of adjustment blocks have different axial lengths; The adjustment blocks are adapted to be selectively stacked above the fixed-length member (3) to adjust the calibration reference length.

3. The tubing female thread torque surface calibration reference device according to claim 2, characterized in that The inner diameter and outer diameter of each adjustment block are respectively the same as the inner diameter and outer diameter of the fixed-length member (3).

4. The tubing female thread torque surface calibration reference device according to claim 2, characterized in that At least one axially through threaded hole is provided on the adjustment block; Adjacent adjustment blocks are connected by fasteners (5) passing through the threaded holes.

5. The tubing female thread torque surface calibration reference device according to claim 4, characterized in that Threaded blind holes corresponding to the threaded holes of the adjustment blocks are provided on the upper surface of the fixed-length member (3); The fasteners (5) are adapted to pass through the uppermost adjustment block and the selectively stacked adjustment blocks and be connected to the threaded blind holes of the fixed-length member (3).

6. The tubing female thread torque surface calibration reference device according to claim 5, characterized in that Both the threaded holes of the adjustment blocks and the threaded blind holes of the fixed-length member (3) are provided with four.

7. The tubing female thread torque surface calibration reference device according to claim 5, characterized in that A counterbore is provided at the opening at both ends of each threaded hole of the adjusting block.

8. The tubing female thread torque surface calibration reference device according to claim 1, wherein the included angle between the inclined surface (11) of the shoulder projection of the reference member (1) and the lower end surface of the reference member (1) is 15 degrees.

9. The tubing female thread torque surface calibration reference device according to claim 1, wherein the reference member (1), the transition member (2) and the fixed length member (3) have the same outer diameter dimension.

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