CN101482012B - Inner sealing surface depth measurer for special petroleum pipe - Google Patents
Inner sealing surface depth measurer for special petroleum pipe Download PDFInfo
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- CN101482012B CN101482012B CN200810017307A CN200810017307A CN101482012B CN 101482012 B CN101482012 B CN 101482012B CN 200810017307 A CN200810017307 A CN 200810017307A CN 200810017307 A CN200810017307 A CN 200810017307A CN 101482012 B CN101482012 B CN 101482012B
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- sealing surface
- depth
- inner sealing
- depthometer
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Abstract
The invention discloses an inner sealing surface depth measuring instrument for a special oil tube; the measuring instrument mainly comprises a depthometer, a crossbar, a benchmark stripe, a benchmark block and a measuring head; the benchmark stripe (2) and the benchmark block (5) are successively and fixedly installed at the left side and right side of the bottom part of the crossbar (1) respectively and thus form bottom planes on the same plane; the frame (4) of the depthometer is fixedly arranged at one side of the right end of the crossbar; the depthometer body (3) is perpendicular to the crossbar (1); a probe head (7) is fixed at the lower end of the depthometer body; along the inclining lower direction of the probe head, the measuring head (6) is fixedly installed; the end head of the measuring head extends out of the edge of the probe head. The measuring instrument can intuitively and accurately measure and judge whether the depth of the inner sealing surface is qualified or not, and can conveniently measure the accurate data for the depth of the inner sealing surface, and thus provide information timely for the data adjustment of machine tool machining. The measuring instrument has simple structure, easy measurement, high sensitivity and good reproducibility.
Description
Technical field
The utility model be a kind of be the metrical instrument of characteristic to adopt mechanical measuring means, be specifically related to a kind of measuring apparatus of measuring the internal sealing face of oil pipe degree of depth.
Background technology
For many years, the connection between the oil pipes is to rely on the external screw thread of two tubes leading portion and the internal thread of a box cupling to realize through screwing, and reaches the sealing to oil in managing or gas through combining closely of described internal and external threads, is thread seal.This thread seal not only required precision of double thread is very high, and its effect does not often reach higher sealing index request.In recent years, people progressively adopted the sealing surface sealing, combined thread seal to realize the sealing of tube and tube junction again, promptly sealed as primary seal with sealing surface, and thread seal seals as pair.So-called sealing surface; Be divided into pipe sealing face (external seal face) and box cupling sealing surface (inner sealing surface); The external seal face is one section conical surface of gas pipe thread front end, and inner sealing surface is one section conical surface at box cupling screw thread rear portion, and this conical surface and box cupling inwall form a sealed step; The conical surface and step surface have certain angle, are generally 20-70 °.The external seal conical surface is consistent with interior sealing cone taper direction; When pipe and box cupling screwed jam-packed, inside and outside two sealing surfaces came in contact, and promptly the pipe end of pipe contacts with box cupling sealed step face; When internal and external threads further screws; The sealing surface at two ends is with regard to mutual extrusion and certain elastic deformation takes place, and two tight cards of sealing surface are lumped together, and reaches the better seal effect.
The processing of inner sealing surface now all is to be accomplished by the programme-control of Digit Control Machine Tool, and to the degree of depth of inner sealing surface, promptly coupling face is not measured to the degree of depth of sealed step, does not have special measuring apparatus yet.Therefore, when lathe breaks down, particularly during tool wear, the processing of the sealing surface degree of depth does not often reach the requirement of design objective, often produces substandard products and waste product.
Summary of the invention
The object of the present invention is to provide a kind of inner sealing surface depth measurer for special petroleum pipe, it can accomplish the relative and absolute measurement to the sealing surface degree of depth, and not only whether testing product is qualified, and can in the process of product, for lathe necessary process data be provided.
The technical scheme that realizes above-mentioned purpose is: inner sealing surface depth measurer for special petroleum pipe, mainly form by depth gauge rule, pole, datum strip, reference block and gage outfit.Datum strip and reference block are fixedly mounted on the right and left of pole bottom respectively continuously, and formed baseplane is on same plane; The chi frame (4) of depth gauge rule is fixedly mounted on right-hand member one side of pole, and the blade of depth gauge rule is vertical with pole; Be fixed with a measuring head base in the lower end of depth gauge rule blade; Be installed with a gage outfit at the oblique lower direction of said measuring head base; The axis of gage outfit becomes 30-60 ° of angle with datum strip or reference block baseplane, and the edge of said measuring head base is stretched out in the termination of gage outfit.
During measurement, be positioned over tested internal thread pipe end to the measuring instrument of adjusting zero point, promote the depth gauge rule blade termination of gage outfit is contacted with the sealing surface bottommost, be exactly sealing surface depth value at the numerical value that depth gauge rule shows this moment.
Inner sealing surface depth measurer for special petroleum pipe of the present invention can be intuitively, whether qualified measure the degree of depth of judging inner sealing surface exactly, and can measure the accurate data of the inner sealing surface degree of depth easily, for the data adjustment of machine tooling in time provides information.This measuring instrument is simple in structure, measures convenient, highly sensitive, good reproducibility.
Description of drawings
Fig. 1 is the whole Facad structure sketch map of one embodiment of the invention.
Fig. 2 is the vertical view of structure shown in Figure 1.
Among the figure: 1. pole, 2. datum strip, 3. blade, 4. chi frame, 5. reference block, 6. gage outfit, 7. measuring head base.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
As depicted in figs. 1 and 2, inner sealing surface depth measurer for special petroleum pipe of the present invention mainly is made up of pole 1, datum strip 2, reference block 5, blade 3, chi frame 4, measuring head base 7 and gage outfit 6.
It is the elongated rectangular shape bar that pole 1 is one, and the right-hand member head of the body of rod has breach, and the chi frame 4 of depth gauge rule is placed in this breach and is screwed, and the blade 3 of depth gauge rule is vertical with pole 1.Be connected with two datum strips 2 on pole 1 base plane from left to right continuously; Reference block 5 and second datum strip continued access, the thickness of datum strip and reference block is identical with width, and formed baseplane is on same plane; This baseplane is a measurement plane, and measurement plane is vertical with blade 3.A breach is arranged on the reference block 5, and dark blade 3 can slide up and down in this breach.There is a measuring head base 7 lower end of blade 3 through screw, the gage outfit 6 that has been threaded below the right side of measuring head base 7 is oblique, and the edge (as shown in Figure 1) of measuring head base 7 is stretched out in its termination; The axis of gage outfit 6 and reference block 3 baseplanes form an angle, and the size of angle designs according to the angle of the sealing surface conical surface, are generally 30-60 °, and modal is 45 °.
During measurement; Spur blade 3 earlier; Utilize platform that the minimum point on gage outfit 6 tops is adjusted on the flat upper surface,, then the instrument of adjusting is positioned over tested internal thread pipe end the data display unit zero setting of depth gauge rule; Promote blade 3 gage outfit 6 tops are contacted with the sealing surface bottom most position, the numerical value that this moment, depth gauge rule showed is exactly the sealing surface depth value.
Also can make sealing surface degree of depth calibrated bolck, on calibrated bolck, with instrument zero setting, on measured object, measure then, the numerical value that depth gauge rule shows is sealing surface depth offset value.
Claims (2)
1. inner sealing surface depth measurer for special petroleum pipe; Mainly form by depth gauge rule, pole, datum strip, reference block and gage outfit; It is characterized in that: said datum strip (2) and reference block (5) are fixedly mounted on the right and left of said pole (1) bottom respectively continuously; Formed baseplane is on same plane, and this baseplane is a measurement plane, and measurement plane is vertical with blade (3); The chi frame (4) of said depth gauge rule is fixedly mounted on right-hand member one side of said pole, and the blade of depth gauge rule (3) is vertical with pole (1); Be fixed with a measuring head base (7) in the lower end of depth gauge rule blade; Be installed with a gage outfit (6) at the oblique lower direction of said measuring head base; The axis of gage outfit becomes 30-60 ° of angle with datum strip (2) or reference block (5) baseplane, and the edge of said measuring head base is stretched out in the termination of gage outfit.
2. according to the described inner sealing surface depth measurer for special petroleum pipe of claim 1, it is characterized in that: the angle of the axis of said gage outfit (6) and datum strip (2) or reference block (5) baseplane is 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810017307A CN101482012B (en) | 2008-01-10 | 2008-01-10 | Inner sealing surface depth measurer for special petroleum pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810017307A CN101482012B (en) | 2008-01-10 | 2008-01-10 | Inner sealing surface depth measurer for special petroleum pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101482012A CN101482012A (en) | 2009-07-15 |
| CN101482012B true CN101482012B (en) | 2012-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810017307A Active CN101482012B (en) | 2008-01-10 | 2008-01-10 | Inner sealing surface depth measurer for special petroleum pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101482012B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2790080A1 (en) * | 1999-02-24 | 2000-08-25 | Vallourec Mannesmann Oil & Gas | Monitoring process for manufacture of threaded pipe ends includes measuring diameter in two places to determine angle of conical thread |
| CN2539140Y (en) * | 2002-04-05 | 2003-03-05 | 天津钢管有限责任公司 | Measurer for sealed cone diameter of air-tight screw joint of petroleum sleeve |
| CN2702269Y (en) * | 2004-05-31 | 2005-05-25 | 宝山钢铁股份有限公司 | Gauge for special screw-threaded oil well pipes |
| CN201003938Y (en) * | 2007-01-19 | 2008-01-09 | 天津钢管集团有限公司 | Complete and integrated sealing diameter gauge and screw thread middle diameter target gauge |
-
2008
- 2008-01-10 CN CN200810017307A patent/CN101482012B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2790080A1 (en) * | 1999-02-24 | 2000-08-25 | Vallourec Mannesmann Oil & Gas | Monitoring process for manufacture of threaded pipe ends includes measuring diameter in two places to determine angle of conical thread |
| CN2539140Y (en) * | 2002-04-05 | 2003-03-05 | 天津钢管有限责任公司 | Measurer for sealed cone diameter of air-tight screw joint of petroleum sleeve |
| CN2702269Y (en) * | 2004-05-31 | 2005-05-25 | 宝山钢铁股份有限公司 | Gauge for special screw-threaded oil well pipes |
| CN201003938Y (en) * | 2007-01-19 | 2008-01-09 | 天津钢管集团有限公司 | Complete and integrated sealing diameter gauge and screw thread middle diameter target gauge |
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| Publication number | Publication date |
|---|---|
| CN101482012A (en) | 2009-07-15 |
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