CN202947632U - Combined calibrating gauge for measuring pitch diameter of thread and sealing face of special female adapter - Google Patents
Combined calibrating gauge for measuring pitch diameter of thread and sealing face of special female adapter Download PDFInfo
- Publication number
- CN202947632U CN202947632U CN 201220683048 CN201220683048U CN202947632U CN 202947632 U CN202947632 U CN 202947632U CN 201220683048 CN201220683048 CN 201220683048 CN 201220683048 U CN201220683048 U CN 201220683048U CN 202947632 U CN202947632 U CN 202947632U
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- thread
- female adapter
- reference field
- sealing
- pitch diameter
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to a combined calibrating gauge for measuring the pitch diameter of thread and the sealing face of a special female 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 inner sides of the combined calibrating gauge body are symmetrically provided with a sealing reference face and a pitch diameter of female thread reference face respectively, the conicity a1 of the sealing reference face 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 female adapter to be measured, the conicity a2 of the pitch diameter of female thread reference face is in accord with the conicity of thread of the female adapter to be measured, the length L2 of the pitch diameter of female thread reference face is larger than the 2/3 of the length of thread of the female adapter to be measured and smaller than the length of the length of thread of the female adapter to be measured, and the size h2 of the small end of the pitch diameter of female thread reference face is in accord with the size of the minor diameter of thread of the female adapter to be measured which is a distance L2 away from the axial reference face.
Description
Technical field
The utility model relates to a kind of gauge of measuring thread pitch diameter, particularly a kind of measurement and demarcates rule with the special female adapter 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 the API feeler gauge to measure compact distance, hermetically-sealed construction is measured also needs to want special measurer.
At present, generally adopt thread pitch diameter to demarcate rule and internal thread sealing surface demarcation rule to the measurement of the special female adapter pitch diameter of thread and sealing surface, measure with the method that compares and measures.Existing thread pitch diameter is demarcated rule in use, at first provides a certain axial location of the screw thread of surveying at axial location with axial demarcation, then demarcates rule with thread pitch diameter and demarcate central diameter.The central diameter of female adapter 4 is measured as shown in accompanying drawing 1,2, first proofreads to 2 pairs of central diameters rule 3 of location position rule with thread pitch diameter demarcation rule 1 and female threaded shaft, then compares measurement with the central diameter of check and correction 3 pairs of female adapters 4 of central diameter rule well.The measurement of the sealing surface of female adapter 4 is first demarcated 5 pairs of inside calliper 6 of rule with the internal thread sealing surface and is proofreaded as shown in accompanying drawing 3,4, then compares measurement with the sealing surface of the good 6 pairs of female adapters 4 of inside calliper of check and correction.
The existing weak point that compares and measures below existing:
When 1, demarcating rule to 3 check and correction of central diameter rule with thread pitch diameter, need to be axially and radially edit simultaneously, and editing of both direction is to be mutually related, and easily causes measuring error.
2, thread pitch diameter 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 female adapter 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 inside calliper 6 adopted is the spherical contact of fixing, the check and correction face that the internal thread sealing surface is demarcated rule is two planes that are parallel to each other, during check and correction, measuring head 6-1 is vertical with the reference field that the internal thread sealing surface is demarcated rule, this moment, measurement point was the S3 point on measuring head 6-1, and the measurement face 4-2 of internal thread sealing surface 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 6-1 and tested internal 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 female adapter 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 female adapter 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 inboards that gauge is demarcated in combination are respectively equipped with symmetrical sealing reference field and thread pitch diameter reference field.The tapering a1 of sealing reference field 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 female adapter sealing surface length; The tapering a2 of thread pitch diameter reference field is consistent with the tapering of tested female adapter screw thread, the length L 2 of thread pitch diameter reference field＞tested female adapter reach 2/3 and＜tested female adapter reach; The small end size h2 of thread pitch diameter reference field and distance axis are to the path consistent size of the reference field length L 2 tested female adapter screw threads in place.
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 female adapter central diameter is demarcated rule check and correction schematic diagram;
Accompanying drawing 2 is existing female adapter central diameter instrumentation plan;
Accompanying drawing 3 is that existing female adapter sealing surface is demarcated rule check and correction schematic diagram;
Accompanying drawing 4 is existing female adapter sealing surface instrumentation plan;
Accompanying drawing 5 is that when measuring, central diameter is advised the schematic diagram that measuring head contacts with interior threaded surface;
Accompanying drawing 6 is that when measuring, central diameter is advised the schematic diagram that measuring head contacts with sealing surface
The rule structural representation is demarcated in the combination that accompanying drawing 7 provides for the utility model;
Accompanying drawing 8 is the A-A cut-open 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 female adapter pitch diameter of thread and sealing surface, it comprises a combination demarcation gauge 7, the upper end that gauge 7 is demarcated in combination is axial reference field 7-1, and two inboards that gauge 7 is demarcated in combination are respectively equipped with symmetrical sealing reference field 7-2 and thread pitch diameter reference field 7-3.The tapering a1 of sealing reference field 7-2 is consistent with the tapering of tested sealing surface, the small end size h1 of sealing reference field 7-2 and the small end consistent size of tested sealing surface, the length L 1 of sealing reference field 7-2≤tested female adapter sealing surface length; The tapering a2 of thread pitch diameter reference field 7-3 is consistent with the tapering of tested female adapter screw thread, the length L 2 of thread pitch diameter reference field 7-3＞tested female adapter reach 2/3 and＜tested female adapter reach; The small end size h2 of thread pitch diameter reference field 7-3 and distance axis are to the path consistent size of the reference field length L 2 tested female adapter screw threads in place.
when measuring the central diameter of female adapter 4, the axial reference field of central diameter rule 3 is placed on the axial reference field 7-1 of combination demarcation gauge 7, two gauge heads of central diameter rule 3 are leaned against respectively on the central diameter reference field 7-3 of combination demarcation gauge 7, 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 female adapter 4 and measure, by comparing and measuring, can draw the interior diameter of tested female adapter 4, measure the screw thread tooth depth with the instrument of chordal addendum again, add tooth depth with the interior diameter value of measuring, just can obtain the pitch diameter of thread value of female adapter 4.
When measuring the sealing surface of female adapter 4, the axial reference field of central diameter rule 3 is placed on the axial reference field 7-1 of combination demarcation gauge 7, two measuring heads of central diameter rule 3 are leaned against respectively on the sealing reference field 7-2 of combination demarcation gauge 7, 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 on the sealing surface of tested female adapter 4 and measure, by comparing and measuring, can directly draw the diameter value of female adapter 4 sealing surfaces.
Claims (1)
1. rule are demarcated in a combination of measuring the special female adapter 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 inboards that gauge is demarcated in combination are respectively equipped with symmetrical sealing reference field and thread pitch diameter reference field; The tapering a1 of sealing reference field 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 female adapter sealing surface length; The tapering a2 of thread pitch diameter reference field is consistent with the tapering of tested female adapter screw thread, the length L 2 of thread pitch diameter reference field＞tested female adapter reach 2/3 and＜tested female adapter reach; The small end size h2 of thread pitch diameter reference field and distance axis are to the path consistent size of the reference field length L 2 tested female adapter screw threads in place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220683048 CN202947632U (en) | 2012-12-12 | 2012-12-12 | Combined calibrating gauge for measuring pitch diameter of thread and sealing face of special female adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220683048 CN202947632U (en) | 2012-12-12 | 2012-12-12 | Combined calibrating gauge for measuring pitch diameter of thread and sealing face of special female adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202947632U true CN202947632U (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220683048 Expired - Lifetime CN202947632U (en) | 2012-12-12 | 2012-12-12 | Combined calibrating gauge for measuring pitch diameter of thread and sealing face of special female adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202947632U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374246A (en) * | 2014-12-03 | 2015-02-25 | 西安三环科技开发总公司 | Internal-thread parameter measuring and calibrating tool for airtight threaded joint |
| 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 |
| CN106168473A (en) * | 2015-05-22 | 2016-11-30 | 中国石油天然气股份有限公司 | Screw pitch diameter gauge |
| CN108267063A (en) * | 2018-03-30 | 2018-07-10 | 上海瓦姆石油天然气管业有限公司 | A kind of device measured for petroleum sleeve joint thread pitch diameter |
-
2012
- 2012-12-12 CN CN 201220683048 patent/CN202947632U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374246A (en) * | 2014-12-03 | 2015-02-25 | 西安三环科技开发总公司 | Internal-thread parameter measuring and calibrating tool for airtight threaded joint |
| 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 |
| CN106168473A (en) * | 2015-05-22 | 2016-11-30 | 中国石油天然气股份有限公司 | Screw pitch diameter gauge |
| CN106168473B (en) * | 2015-05-22 | 2018-05-08 | 中国石油天然气股份有限公司 | Screw pitch diameter gauge |
| 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 |
| CN108267063A (en) * | 2018-03-30 | 2018-07-10 | 上海瓦姆石油天然气管业有限公司 | A kind of device measured for petroleum sleeve joint thread pitch diameter |
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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 |
Granted publication date: 20130522 |
|
| CX01 | Expiry of patent term |