CN202947633U - Combined calibrating gauge for measuring pitch diameter of thread and sealing face of special male adapter - Google Patents
Combined calibrating gauge for measuring pitch diameter of thread and sealing face of special male adapter Download PDFInfo
- Publication number
- CN202947633U CN202947633U CN 201220683095 CN201220683095U CN202947633U CN 202947633 U CN202947633 U CN 202947633U CN 201220683095 CN201220683095 CN 201220683095 CN 201220683095 U CN201220683095 U CN 201220683095U CN 202947633 U CN202947633 U CN 202947633U
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- Prior art keywords
- thread
- pitch diameter
- sealing
- reference field
- male connection
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- Expired - Lifetime
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Abstract
The utility model relates to a combined calibrating gauge for measuring the pitch diameter of thread and the sealing face of a special male adapter, comprising a combined calibrating gauge body, wherein the upper end face of the combined calibrating gauge body is provided with an axial reference face, two outer sides of the combined calibrating gauge body are symmetrically provided with a sealing reference face and a pitch diameter of male thread reference face respectively, the conicity of the sealing reference face is a1 and is in accord with the conicity of a sealing face to be measured, the size h1 of the small end of the sealing reference face is in accord with the size of the small end of the sealing face to be measured, the length L1 of the sealing reference face is smaller than or equal to the length of the sealing face of a male adapter to be measured, the conicity a2 of pitch diameter of male thread reference face is in accord with the conicity of the threads of the male adapter to be measured, the size h2 of the small end of the pitch diameter of male thread reference face is in accord with the size of the major diameter of the male adapter to be measured which is a distance L1 away from the axial reference face, and the length L2 of the pitch diameter of male thread reference face is larger than the 2/3 of the length of thread of the male adapter to be measured, and smaller than the length of thread of the male adapter to be measured.
Description
Technical field
The utility model relates to a kind of gauge of measuring pitch diameter of external thread, particularly a kind of measurement and demarcates rule with the special male connection pitch diameter of thread of sealing surface and the combination of sealing surface.
Background technology
Along with the development of drilling technique, hole condition is more and more abominable, and the pressure of some gasser even reaches MPas up to a hundred, and at this moment common API tubing and casing connecting joint has not reached request for utilization, usually leaks, and leads to grave consequences.Under this background, the special thread jointing with sealing surface structure is all puted forth effort to research and develop by iron company both domestic and external, for example NEWVAM, the VAMTOP Special threading connector of the exploitation of France watt Lu Ruike company, the TPCQ Special threading connector of Steel Tube in Tianjin research and development, this class Special threading connector all adopt inclined to one side acme thread after improvement, the conical surface to the hermetically-sealed construction of the conical surface.Because double thread improves, can not use API ring rule to measure compact distance, hermetically-sealed construction is measured also needs to want special measurer.
At present, generally adopt pitch diameter of external thread to demarcate rule and outside thread sealing surface demarcation rule to the measurement of the special male connection pitch diameter of thread and sealing surface, measure with the method that compares and measures.Existing pitch diameter of external thread demarcates rule and outside thread sealing surface is demarcated rule in use, at first at axial location with axially demarcating a certain axial location that provides institute's screw thread of surveying or sealing surface, then demarcate rule or outside thread sealing surface with pitch diameter of external thread and demarcate and advise demarcation central diameter or sealing surface.The central diameter of male connection 4 is measured as shown in accompanying drawing 1,2, first demarcates 2 pairs of central diameter rule 3 of rule with pitch diameter of external thread demarcation rule 1 and external thread axial location and proofreads, then compare measurement with the pitch diameter of thread of proofreading good 3 pairs of male connections 4 of central diameter rule.The measurement of the sealing surface of male connection 4 is as shown in accompanying drawing 3,4, first demarcate 6 pairs of central diameters rule 7 of rule with outside thread sealing surface demarcation rule 5 and outside thread sealing surface axial location and proofread, then compare measurement with the sealing surface of proofreading good 7 pairs of male connections 4 of central diameter rule.
The existing weak point that compares and measures below existing:
When 1, pitch diameter of external thread is demarcated rule and outside thread sealing surface and is demarcated the rule check and correction, need to be axially and radially edit simultaneously, and editing of both direction is to be mutually related, and easily causes measuring error.
2, pitch diameter of external thread demarcation rule check and correction face is two measurement faces parallel to each other, the axis that is equivalent to central diameter rule gauge head 3-1 is vertical with the axis of male connection 4, this central diameter is theoretical central diameter S1, and the axis of central diameter rule gauge head 3-1 is vertical with the bus of screw thread 4-1 in actual measurement, as shown in Figure 5, recording central diameter is S2, and this just need to revise the error that gauge head brings, although this error demarcate regulation as the time revise, but easily cause error.
3, what central diameter rule 7 were adopted is the spherical contact of fixing, the check and correction face that outside thread sealing surface is demarcated rule is two planes that are parallel to each other, during check and correction, measuring head 7-1 is vertical with the reference field that outside thread sealing surface is demarcated rule, this moment, measurement point was the S3 point on measuring head 7-1, and the measurement face of outside thread sealing surface 4-2 is the conical surface, after calibration, calibration point and actual spot of measurement are not same positions, during actual measurement, as shown in Figure 6, the actual contact point of measuring head 7-1 and tested outside thread sealing surface is S4, easily cause error, although when making demarcation rule, this error is revised, but also or easily there is error.
Summary of the invention
The purpose of this utility model is to overcome the above-mentioned deficiency of prior art and provide a kind of measurement to demarcate rule with the combination of the special male connection pitch diameter of thread of sealing surface and sealing surface.
The technical solution of the utility model is: rule are demarcated in a kind of combination of measuring the special male connection pitch diameter of thread and sealing surface, it comprises a combination demarcation gauge, the upper end that gauge is demarcated in combination is axial reference field, and two outsides that gauge is demarcated in combination are respectively equipped with symmetrical sealing reference field and pitch diameter of external thread reference field.The tapering of sealing reference field is that a1 is consistent with the tapering of tested sealing surface, the small end size h1 of sealing reference field and the small end consistent size of tested sealing surface, the length L 1 of sealing reference field≤tested male connection sealing surface length; The tapering a2 of pitch diameter of external thread reference field is consistent with the tapering of tested male connection screw thread, the small end size h2 of pitch diameter of external thread reference field is the large footpath consistent size apart from the tested male connection screw thread at axial reference field distance L 1 place, the length L 2 of pitch diameter of external thread reference field＞tested male connection reach 2/3 and＜tested male connection reach.
The utility model compared with prior art has following features:
1, the measurement face of the pitch diameter of thread is the conical surface, and the central diameter reference field that combination is demarcated on rule is designed to the corresponding with it conical surface, and existing two relevant benchmark are changed into a benchmark, has reduced calibrated error, has simplified running program.
2, the check point of sealing surface and measurement point are consistent, and have guaranteed measured with to measure the face benchmark consistent, have improved stated accuracy.
Below in conjunction with the drawings and specific embodiments, detailed construction of the present utility model is further described.
Description of drawings
Accompanying drawing 1 is that existing pitch diameter of external thread is demarcated rule check and correction schematic diagram;
Accompanying drawing 2 is existing pitch diameter of external thread instrumentation plan;
Accompanying drawing 3 is that existing male connection sealing surface is demarcated rule check and correction schematic diagram;
Accompanying drawing 4 is existing male connection sealing surface instrumentation plan;
Accompanying drawing 5 is that when measuring, central diameter is advised the schematic diagram that measuring head contacts with external threaded surface;
Accompanying drawing 6 is that when measuring, sealing surface is advised the schematic diagram that measuring head contacts with the external seal face;
The rule structural representation is demarcated in the combination that accompanying drawing 7 provides for the utility model;
Accompanying drawing 8 is the left view in accompanying drawing 7;
Accompanying drawing 9 is demarcated rule central diameter check and correction schematic diagram for combination;
Accompanying drawing 10 is demarcated rule sealing surface check and correction schematic diagram for combination.
Embodiment
Rule are demarcated in a kind of combination of measuring the special male connection pitch diameter of thread and sealing surface, it comprises a combination demarcation gauge 8, the upper end that gauge 8 is demarcated in combination is axial reference field 8-1, and two outsides that gauge 8 is demarcated in combination are respectively equipped with symmetrical sealing reference field 8-2 and pitch diameter of external thread reference field 8-3.The tapering of sealing reference field 8-2 is that a1 is consistent with the tapering of tested sealing surface, the small end size h1 of sealing reference field 8-2 and the small end consistent size of tested sealing surface, the length L 1 of sealing reference field 8-2≤tested male connection sealing surface length; The tapering a2 of pitch diameter of external thread reference field 8-3 is consistent with the tapering of tested male connection screw thread, the small end size h2 of pitch diameter of external thread reference field 8-3 is the large footpath consistent size apart from the tested male connection screw thread at axial reference field distance L 1 place, the length L 2 of pitch diameter of external thread reference field 8-3＞tested male connection reach 2/3 and＜tested male connection reach.
when measuring the central diameter of male connection 4, the axial reference field of central diameter rule 3 is placed on the axial reference field 8-1 of combination demarcation gauge 8, two gauge heads of central diameter rule 3 are leaned against respectively on the central diameter reference field 8-3 of combination demarcation gauge 8, the tightening knob of locking central diameter rule 3, measurement gauge outfit set to zero position with central diameter rule 3, then the central diameter rule 3 after high-ranking officers zero are placed in tested male connection 4 and measure, by comparing and measuring, can draw the overall diameter of tested male connection 4, measure the screw thread tooth depth with the instrument of chordal addendum again, deduct tooth depth with the overall diameter value of measuring, just can obtain male connection 4 pitch diameter of thread values.
When measuring the sealing surface of male connection 4, the axial reference field of central diameter rule 7 is placed on the axial reference field 8-1 of combination demarcation gauge 8, two measuring heads of central diameter rule 7 are leaned against respectively on the sealing reference field 8-2 of combination demarcation gauge 8, measurement gauge outfit set to zero position with central diameter rule 7, then the central diameter rule 7 after high-ranking officers zero are placed on the sealing surface of tested male connection 4 and measure, by comparing and measuring, can directly draw the diameter value of male connection 4 sealing surfaces.
Claims (1)
1. rule are demarcated in a combination of measuring the special male connection pitch diameter of thread and sealing surface, it is characterized in that: it comprises a combination demarcation gauge, the upper end that gauge is demarcated in combination is axial reference field, and two outsides that gauge is demarcated in combination are respectively equipped with symmetrical sealing reference field and pitch diameter of external thread reference field; The tapering of sealing reference field is that a1 is consistent with the tapering of tested sealing surface, the small end size h1 of sealing reference field and the small end consistent size of tested sealing surface, the length L 1 of sealing reference field≤tested male connection sealing surface length; The tapering a2 of pitch diameter of external thread reference field is consistent with the tapering of tested male connection screw thread, the small end size h2 of pitch diameter of external thread reference field is the large footpath consistent size apart from the tested male connection screw thread at axial reference field distance L 1 place, the length L 2 of pitch diameter of external thread reference field＞tested male connection reach 2/3 and＜tested male connection reach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220683095 CN202947633U (en) | 2012-12-12 | 2012-12-12 | Combined calibrating gauge for measuring pitch diameter of thread and sealing face of special male adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220683095 CN202947633U (en) | 2012-12-12 | 2012-12-12 | Combined calibrating gauge for measuring pitch diameter of thread and sealing face of special male adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202947633U true CN202947633U (en) | 2013-05-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220683095 Expired - Lifetime CN202947633U (en) | 2012-12-12 | 2012-12-12 | Combined calibrating gauge for measuring pitch diameter of thread and sealing face of special male adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202947633U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482827A (en) * | 2014-12-03 | 2015-04-01 | 西安三环科技开发总公司 | Sealed thread connector outer thread parameter measuring and aligning tool |
| CN105066936A (en) * | 2015-07-31 | 2015-11-18 | 重庆华瑞标准件制造有限公司 | Rapid measurement device of rectangular thread screw pitch diameter and usage method thereof |
| CN114322716A (en) * | 2020-09-29 | 2022-04-12 | 宝山钢铁股份有限公司 | Correction instrument for detecting contour error of upper sealing surface of threaded oil sleeve and correction method thereof |
-
2012
- 2012-12-12 CN CN 201220683095 patent/CN202947633U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482827A (en) * | 2014-12-03 | 2015-04-01 | 西安三环科技开发总公司 | Sealed thread connector outer thread parameter measuring and aligning tool |
| CN105066936A (en) * | 2015-07-31 | 2015-11-18 | 重庆华瑞标准件制造有限公司 | Rapid measurement device of rectangular thread screw pitch diameter and usage method thereof |
| CN105066936B (en) * | 2015-07-31 | 2018-05-04 | 重庆华瑞标准件制造有限公司 | The rapid measurement device and its application method of rectangle tooth screw central diameter |
| CN114322716A (en) * | 2020-09-29 | 2022-04-12 | 宝山钢铁股份有限公司 | Correction instrument for detecting contour error of upper sealing surface of threaded oil sleeve and correction method thereof |
| CN114322716B (en) * | 2020-09-29 | 2023-11-14 | 宝山钢铁股份有限公司 | Calibrating instrument for detecting contour error of upper sealing surface of threaded oil sleeve and calibrating method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130522 |