CN103712543A - Measuring instrument for diameter of external sealing surface of thread of petroleum pipe - Google Patents

Measuring instrument for diameter of external sealing surface of thread of petroleum pipe Download PDF

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Publication number
CN103712543A
CN103712543A CN201310698298.3A CN201310698298A CN103712543A CN 103712543 A CN103712543 A CN 103712543A CN 201310698298 A CN201310698298 A CN 201310698298A CN 103712543 A CN103712543 A CN 103712543A
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CN
China
Prior art keywords
measuring
diameter
measuring head
gauge
base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201310698298.3A
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Chinese (zh)
Inventor
赵耕
韩占龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HANZHONG WANMU INSTRUMENT ELECTRONICS CO Ltd
Original Assignee
HANZHONG WANMU INSTRUMENT ELECTRONICS CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HANZHONG WANMU INSTRUMENT ELECTRONICS CO Ltd filed Critical HANZHONG WANMU INSTRUMENT ELECTRONICS CO Ltd
Priority to CN201310698298.3A priority Critical patent/CN103712543A/en
Publication of CN103712543A publication Critical patent/CN103712543A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a measuring instrument for diameter of an external sealing surface of a thread of a petroleum pipe. The measuring instrument is mainly composed of a body, reference strips, a gauge base, an indicating gauge, a slide base, a measuring head base and measuring heads. The body presents to be elongated U-type shallow-groove-shaped. Each of internal sides of two side groove openings is fixedly provided with one reference strip along length. Height of the two reference strips is consistent and the two reference strips are parallel. The indicating gauge is installed on the gauge base which is installed on one end of the body and can be adjusted in a lifting way. The measuring head base is installed on the slide base and can be adjusted in the lifting way on the slide base. The slide base is sleeved on the two reference strips and can slide and be positioned on the reference strips. There are two measuring heads, wherein one is arranged on an end head of a measuring rod of the indicating gauge, the other is installed on the measuring head base, and the two measuring heads are corresponding and arranged on the same axis. A deviation value of diameter of the external sealing surface of the petroleum pipe can be accurately measured, and qualification of the deviation value of diameter of the external sealing surface of the petroleum pipe is rapidly judged so that the measuring instrument is convenient to use, simple in structure and easy to manufacture.

Description

Oil pipe thread external seal face measuring apparatus of diameter
Technical field
The invention belongs to a kind of gauging instrument that mechanical measuring means is feature of take, what be specifically related to is a kind of surveying instrument of measuring oil pipe thread external seal face diameter.
Background technology
For many years, connection between oil pipes be rely on the external thread of body leading portion and with it the internal thread of the box cupling of adaptation realize, the internal thread at box cupling two ends and body external thread screw, one one couples together, and reach managing the sealing of interior oil or gas by combining closely between screw thread, be thread seal.The accuracy requirement of thread seal double thread is very high, and sealing effectiveness is not but very good.In recent years, people have found the better mode of a kind of sealing effectiveness, and the outer bead of external thread petroleum pipeline is designed to one section of circular conical surface, and this circular conical surface is as external seal face; Accordingly, the rear end of the internal thread of box cupling is also designed to one section of circular conical surface, and this circular conical surface is as inner sealing surface, and the tapering of inside and outside two sealing surfaces is consistent.When petroleum pipeline and box cupling screw, inside and outside two sealing surfaces are drawn close gradually, fit, are pushed, and finally form tight combination, and making has had better sealing effectiveness between pipe and box cupling.
The processing of above-mentioned oil pipe thread external seal face is all completed by numerically-controlled machine substantially, up to now, there are no how a kind of instrumentation to oil pipe thread external seal face diameter measurement appears on the market, also open without any relevant technical information, the processing of workpiece only depends on the programmed control of lathe to complete, and there is no detection means and testing tool at all, when lathe breaks down, when particularly cutter has wearing and tearing, workpiece does not often just reach designing requirement, and substandard products and rejection rate are very high.
Summary of the invention
The object of the present invention is to provide a kind of oil pipe thread external seal face measuring apparatus of diameter, whether it can detect product to be processed qualified, and can be lathe necessary adjustment data are provided in process.
The technical scheme that realizes above-mentioned purpose is: a kind of oil pipe thread external seal face measuring apparatus of diameter, is mainly comprised of main body, datum strip, gauge stand, indicating gauge, sliding seat, measuring head base, measuring head; Main body is rectangular U-shaped shallow slot shape, and each is fixed with a foundation floating screed along long both sides notch inner side, and two foundation floating screed height are consistent and parallel; Indicating gauge is arranged on gauge stand, and gauge stand is arranged on main body one end and liftable regulates; Measuring head base be arranged on sliding seat and can be on sliding seat lift adjustment, sliding base sleeve is contained on two foundation floating screeds and can on datum strip, slides, locate; Measuring head has two, a sounding rod termination that is positioned at indicating gauge, and another is arranged on measuring head base, and two measuring head correspondences are also positioned on same axis.
Further, the bottom land end of the U-shaped shallow slot of described main body is equipped with a stop screw.
Further, the bottom surface medium position of described main body is provided with a handle.
Before measurement, first use height calibrated bolck, on datum strip respectively by the height control of two measuring heads to standard value, re-use diameter calibrated bolck, on datum strip, the distance between two measuring heads is adjusted to standard value, indicating gauge is returned to zero; During measurement, the datum strip of measuring instrument is adjacent to the end face of petroleum pipeline, keeps two measuring heads to contact with external seal face, now the reading on indicating gauge is external seal face diameter with respect to the deviate of normal diameter.
The present invention can measure the diameter deviation value of petroleum pipeline external seal face exactly, judges that fast whether it is qualified, can be in time provides adjustment information for the process data of lathe.This measuring instrument is easy to use, it is quick, highly sensitive, reproducible, simple in structure to measure, and easily manufactures.
Accompanying drawing explanation
Fig. 1 is the organigram of one embodiment of the invention.
Fig. 2 is vertical view embodiment illustrated in fig. 1.
Fig. 3 is oil pipe end external seal face shape schematic diagram.
In figure: 1. indicating gauge, 2. gauge stand, 3. guide finger, 4. measuring head, 5. main body, 6. datum strip, 7. measuring head base, 8. sliding seat, 9. lock-screw, 10. latch, 11. stop screws, 12. handles, 13. petroleum pipeline external threads, 14. conical external seal faces.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As depicted in figs. 1 and 2, the present invention is mainly comprised of main body 5, datum strip 6, gauge stand 2, indicating gauge 1, sliding seat 8, measuring head base 7, measuring head 4.Main body 5 is strip, and its section configuration is U-shaped shallow slot shape, and in the inner side of two groove beads, each height that is fixed with foundation floating screed 6, two foundation floating screeds 6 along length is consistent and parallel, forms one group of closed slide; One end liftable that gauge stand 2 is arranged on main body 6 regulate, and the centre bit of gauge stand 2 is equipped with a transverse horizontal through hole, and the axle sleeve of indicating gauge 1 and this through hole interference fit are fixed on gauge stand 2 indicating gauge 1; Sliding seat 8 is sleeved on the formed closed slide of two foundation floating screeds 6, and can on guide rail, slide, locate; The madial wall interposition of sliding seat 8 is equipped with a vertical chute, on the sidewall of measuring head base 7, have one with the suitable slide block of this chute, measuring head base 7 is arranged on sliding seat 8 and can does lift adjustment along chute; Measuring head 4 has two, a sounding rod termination that is arranged on indicating gauge 1, and another is arranged on measuring head base 7, and two measuring head correspondences are also positioned on same axis.
Slip and the location of sliding seat 8 on closed slide completes by lock-screw 9.There is a vertical through hole at sliding seat 8 centers, in the U-shaped shallow slot of datum strip 6 below main bodys 5, a latch 10 are housed, and lock-screw 9 is connected with latch 10 through vertical through hole.Lock-screw 9 is when relaxed state, and sliding seat 8 can slide arbitrarily on closed slide; When screwing lock-screw 9, the upper plane of latch 10 and the bottom surface of datum strip 6 are adjacent to, and sliding seat 8 positions are fixed.Lock-screw 9 can be locked in the optional position on closed slide by sliding seat 8.In addition, between latch 10 and sliding seat 8, be provided with a guide finger 3 that prevents that latch 10 from rotating.
For anti-skidding seat 8 skids off track, at the bottom land end of the U-shaped shallow slot of main body 5, the corresponding termination that namely sliding seat 8 slides, is equipped with a stop screw 11.
In the present embodiment, the bottom surface medium position of main body 5 is provided with a handle 12.Handle 12 is convenient to hand-held measuring appliance, is convenient for measuring.
During measurement, the datum strip of measuring instrument of the present invention 6 is adjacent to the end face of petroleum pipeline as shown in Figure 3, keeps two measuring heads 4 to contact with external seal face 14, now the reading on indicating gauge 1 is external seal face diameter with respect to the deviate of normal diameter.

Claims (3)

1. an oil pipe thread external seal face measuring apparatus of diameter, is characterized in that: mainly main body, datum strip, gauge stand, indicating gauge, sliding seat, measuring head base, measuring head, consist of; Main body is rectangular U-shaped shallow slot shape, and each is fixed with a foundation floating screed along long both sides notch inner side, and two foundation floating screed height are consistent and parallel; Indicating gauge is arranged on gauge stand, and gauge stand is arranged on main body one end and liftable regulates; Measuring head base be arranged on sliding seat and can be on sliding seat lift adjustment, sliding base sleeve is contained on two foundation floating screeds and can on datum strip, slides, locate; Measuring head has two, a sounding rod termination that is positioned at indicating gauge, and another is arranged on measuring head base, and two measuring head correspondences are also positioned on same axis.
2. according to oil pipe thread external seal face measuring apparatus of diameter claimed in claim 1, it is characterized in that: the bottom land end of the U-shaped shallow slot of described main body is equipped with a stop screw.
3. according to the oil pipe thread external seal face measuring apparatus of diameter described in claim 1 or 2, it is characterized in that: the bottom surface medium position of described main body is provided with a handle.
CN201310698298.3A 2013-12-10 2013-12-10 Measuring instrument for diameter of external sealing surface of thread of petroleum pipe Pending CN103712543A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310698298.3A CN103712543A (en) 2013-12-10 2013-12-10 Measuring instrument for diameter of external sealing surface of thread of petroleum pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310698298.3A CN103712543A (en) 2013-12-10 2013-12-10 Measuring instrument for diameter of external sealing surface of thread of petroleum pipe

Publications (1)

Publication Number Publication Date
CN103712543A true CN103712543A (en) 2014-04-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310698298.3A Pending CN103712543A (en) 2013-12-10 2013-12-10 Measuring instrument for diameter of external sealing surface of thread of petroleum pipe

Country Status (1)

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CN (1) CN103712543A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105300238A (en) * 2014-07-21 2016-02-03 宝山钢铁股份有限公司 Highly-airtight special thread pipe end seal surface diameter and ovality measuring device and method
CN111023946A (en) * 2019-12-19 2020-04-17 中国石油天然气集团有限公司 Petroleum pipe external thread top diameter measuring instrument and method

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4447959A (en) * 1981-06-19 1984-05-15 Mitutoyo Mfg. Co., Ltd. Instrument for measuring internal dimensions
CN2773618Y (en) * 2005-01-08 2006-04-19 汉中万目仪电有限责任公司 External thread taper measuring instrument of petroleum pipe
CN201285269Y (en) * 2008-10-22 2009-08-05 宝山钢铁股份有限公司 Oil jacket pipe end sealing surface measuring gage
CN101655342A (en) * 2008-08-22 2010-02-24 汉中万目仪电有限责任公司 Measuring apparatus of diameter of internal sealing face of oil pipe
CN201844804U (en) * 2010-09-13 2011-05-25 无锡西姆莱斯石油专用管制造有限公司 Measuring instrument for external thread sealing surface of oil casing
CN301580296S (en) * 2010-12-16 2011-06-15 汉中万目仪电有限责任公司 Oil pipe thread external seal diameter measuring instrument
CN202133358U (en) * 2011-06-25 2012-02-01 无锡西姆莱斯石油专用管制造有限公司 Replaceable outside thread sealing surface diameter measuring instrument
CN202133360U (en) * 2011-06-30 2012-02-01 无锡西姆莱斯石油专用管制造有限公司 Full-range measuring instrument for outside thread sealing surface diameter of oil well pipe
CN203216427U (en) * 2013-05-15 2013-09-25 丹阳市万隆铸造有限公司 External diameter measuring meter for measuring external diameter of front edge

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4447959A (en) * 1981-06-19 1984-05-15 Mitutoyo Mfg. Co., Ltd. Instrument for measuring internal dimensions
CN2773618Y (en) * 2005-01-08 2006-04-19 汉中万目仪电有限责任公司 External thread taper measuring instrument of petroleum pipe
CN101655342A (en) * 2008-08-22 2010-02-24 汉中万目仪电有限责任公司 Measuring apparatus of diameter of internal sealing face of oil pipe
CN201285269Y (en) * 2008-10-22 2009-08-05 宝山钢铁股份有限公司 Oil jacket pipe end sealing surface measuring gage
CN201844804U (en) * 2010-09-13 2011-05-25 无锡西姆莱斯石油专用管制造有限公司 Measuring instrument for external thread sealing surface of oil casing
CN301580296S (en) * 2010-12-16 2011-06-15 汉中万目仪电有限责任公司 Oil pipe thread external seal diameter measuring instrument
CN202133358U (en) * 2011-06-25 2012-02-01 无锡西姆莱斯石油专用管制造有限公司 Replaceable outside thread sealing surface diameter measuring instrument
CN202133360U (en) * 2011-06-30 2012-02-01 无锡西姆莱斯石油专用管制造有限公司 Full-range measuring instrument for outside thread sealing surface diameter of oil well pipe
CN203216427U (en) * 2013-05-15 2013-09-25 丹阳市万隆铸造有限公司 External diameter measuring meter for measuring external diameter of front edge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105300238A (en) * 2014-07-21 2016-02-03 宝山钢铁股份有限公司 Highly-airtight special thread pipe end seal surface diameter and ovality measuring device and method
CN111023946A (en) * 2019-12-19 2020-04-17 中国石油天然气集团有限公司 Petroleum pipe external thread top diameter measuring instrument and method

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Application publication date: 20140409