CN201476741U - Special caliper for measuring large-end diameter of taper hole of oil drill female adaptor - Google Patents
Special caliper for measuring large-end diameter of taper hole of oil drill female adaptor Download PDFInfo
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- CN201476741U CN201476741U CN2009201730453U CN200920173045U CN201476741U CN 201476741 U CN201476741 U CN 201476741U CN 2009201730453 U CN2009201730453 U CN 2009201730453U CN 200920173045 U CN200920173045 U CN 200920173045U CN 201476741 U CN201476741 U CN 201476741U
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Abstract
The utility model relates to a special caliper for measuring a large-end diameter of a taper hole of an oil drill female adaptor, which mainly comprises a main measurement ruler (1), a fixed scale (2), a vernier scale (3) and spherical contacts (6), wherein the main measurement ruler (1) is of a rectangular ruler, and length graduations are arranged on the main measurement ruler (1); graduations are arranged on the vernier scale (3), and the fixed scale (2) is fixed at one end of the main measurement ruler (1); the vernier scale (3) is arranged on the main measurement ruler (1), and the fixed scale (2) is parallel to the vernier scale (3); and the spherical contacts (6) are respectively fixed at the outer sides of the fixed scale (2) and the vernier scale (3). The utility model has the effects that the problem that the large-end diameter of the taper hole of the oil drill female adaptor can not be directly and precisely measured can be solved, and the accuracy degree and efficiency of measurement are improved.
Description
Technical field
The utility model relates to the oil drilling tools field of measuring technique, is a kind of special-purpose slide calliper rule that oil drilling tools female adapter reamer hole outside diameter is measured.
Background technology
At present, oil drilling tools is that the special-purpose taper thread joint by having certain taper (being generally 1: 4 or 1: 6) connects into drill string by root, finishes the drilling well task in the lower going-into-well, divides male connection and female adapter.Accurate to dimension and interchangeability in order to ensure the oil drilling tools connecting thread, improve the safe reliability that drilling tool is threaded, API Spec 7-2-2008 " processing and the measurement of rotation shoulder type connecting thread " (API Std) has clear and definite size tolerance requirements to the physical dimension and the thread parameter of drilling tool threaded connector.
Drilling tool female adapter reamer hole outside diameter Q belongs to the physical dimension parameter that API Spec 7-2 requires measurement, and this standard has been stipulated its tolerance simultaneously.Because drilling tool female adapter reamer hole is inner for having the cone structure of certain taper (1: 4 or 1: 6), this standard is the cross section circular diameter that big end in reamer hole and joint sealing end face intersect to the definition of reamer hole outside diameter Q.Because tool joint adds and carries out chamfering by standard-required at big end in reamer hole and joint sealing end face intersection man-hour, be an imaginary circle diameter in fact so need the reamer hole outside diameter Q that measures.No matter, all can't carry out accurate and effective measurement to this diameter during the examination and test of products with the slide calliper rule and the measuring method of routine for production unit or applying unit.
Chinese patent Granted publication CN2578782Y provides a kind of " measuring the vernier caliper of taper hole bore ".
The utility model content
The purpose of this utility model is: provide a kind of oil drilling tools female adapter taper hole outside diameter to measure special-purpose slide calliper rule, drilling tool female adapter reamer hole outside diameter is accurately measured, satisfy the needs of tool joint inspection during manufacture, it is safe and reliable to guarantee that the drilling tool threaded connector connects.
The technical solution adopted in the utility model is: oil drilling tools female adapter taper hole outside diameter is measured special-purpose slide calliper rule, mainly form by main dip stick, fixed ruler, vernier and spherical contact, main dip stick is the rectangle ruler, and the length scale is arranged on the main dip stick, and vernier has scale.Basic structure is identical with vernier caliper, is not described in detail.It is characterized in that: the end at main dip stick is fixed with fixed ruler, on main dip stick vernier is arranged.Fixed ruler is parallel with vernier, fixes a spherical contact respectively at the lateral surface of fixed ruler and vernier.
For the accuracy of measuring, be fixed with the fixed reference piece in the outside of fixed ruler, be fixed with the reference block that moves about in the outside of vernier, the fixed reference piece and the reference block that moves about, last plane in same plane.
For the accuracy of measuring, the diameter of spherical contact is 5mm, and spherical contact center is to the fixed reference piece and move about that the height on plane is 4mm on the reference block.
For the ease of operation, on main dip stick, be fixed with handle.
Summary oil drilling tools female adapter taper hole outside diameter is measured the principle and the measuring process of special-purpose slide calliper rule.
Consult Fig. 1.Spherical contact 6 is fixed on the lateral wall of fixed ruler 2, and become the end of an overall fixed at main dip stick 1 with fixed ruler 2, another spherical contact 6 is fixed on vernier 3 lateral walls, and becomes a physical efficiency with vernier 3 and slide in main dip stick 1 measurement range.During measurement, at first, fixed reference piece 4 and the move about last plane of reference block 5 and the end face of tool joint female end 8 are close to.Secondly, the taper hole conical surface of the spherical contact 6 on the fixed ruler 2 being close to tool joint female end 8.Then, mobile vernier 3 makes the spherical contact 6 on the vernier 3 be close to the taper hole conical surface of tool joint female end 8 other ends, swings vernier 3 up and down among a small circle, reads a greatest measurement from main dip stick 1.Consult Fig. 2.At last, according to the drilling tool female adapter reamer hole conical surface tapering of correspondence, calculate the compensation rate L1 between corresponding measurement point and the real Q value.L1 is a certain value, according to drilling tool female adapter tapering difference, adds different compensation rates.So, Q=L+30+2*L1 (mm), L is an actual measurement length in the formula.So just realized the Q value is measured accurately and effectively, improved accuracy and the work efficiency measured greatly.
The beneficial effects of the utility model: the utility model oil drilling tools female adapter taper hole outside diameter is measured special-purpose slide calliper rule, fully guaranteeing under the prerequisite of measurement accuracy, solve the problem that oil drilling tools female adapter taper hole outside diameter can't directly be measured, improved the work efficiency of measuring, and guaranteed that surveying work accurately and reliably.Improve the special-purpose slide calliper rule of oil drilling tools female adapter taper hole outside diameter accuracy of measurement and work efficiency.
Description of drawings
Fig. 1 is that oil drilling tools female adapter taper hole outside diameter is measured special-purpose slide calliper rule synoptic diagram and surveying work synoptic diagram.
Fig. 2 is the partial schematic diagram that oil drilling tools female adapter taper hole outside diameter is measured special-purpose slide calliper rule, is schematic diagram.
1. main dip sticks among the figure, 2. fixed ruler, 3. vernier, 4. fixed reference piece, the reference block that 5. moves about, 6. spherical contact, 7. handle, 8. tool joint female end.
Embodiment
Embodiment 1: measuring special-purpose slide calliper rule with an oil drilling tools female adapter taper hole outside diameter is example, and the utility model is described in further detail.
Oil drilling tools female adapter taper hole outside diameter is measured special-purpose slide calliper rule, form by main dip stick 1, fixed ruler 2, vernier 3, fixed reference piece 4, the reference block 5 that moves about, spherical contact 6 and handle 7, main dip stick 1 is the rectangle ruler, on the main dip stick 1 the length scale is arranged, and scale is long to be 30mm.The least unit of scale is mm.Vernier 3 has scale.
End at main dip stick 1 is fixed with fixed ruler 2, on main dip stick 1 vernier 3 is arranged.Fixed ruler 2 is parallel with vernier 3, and the width of fixed ruler 2 and vernier 3 is 10mm.Fix a spherical contact 6 respectively at the lateral surface of fixed ruler 2 and vernier 3.The diameter of spherical contact 6 is 5mm.Fixed form adopts a cylindrical pivot pin to connect.
Be fixed with block length side's bodily form fixed reference piece 4 in the outside of fixed ruler 2, be fixed with block length side's bodily form reference block 5 that moves about in the outside of vernier 3, the last plane of fixed reference piece 4 and the reference block 5 that moves about is in same plane.
On main dip stick 1, be fixed with a handle 7.
Consult Fig. 6.With tapering is that 1: 4 oil drilling tools female adapter is an example: ultimate demand calculates | the value of Δ x|.|Δx|＝tgθ*|db|
Because θ=arctg1/8=7.1250 °;
|r|＝2.5mm；
|Δy|＝1.5mm；
|of|＝|r|/cosθ＝2.5/0.9923＝2.5194mm；
|fc|＝|of|-|r|＝0.0194mm；
|dc|＝|fc|/tgθ＝0.0194/0.1250＝0.1556mm；
|cb|＝|r|+|Δy|＝2.5+1.5＝4mm；
|db|＝|dc|+|cb|＝4.1556mm；
By above formula, can finally calculate | Δ x|=0.125*4.1556mm=0.5194mm.
So detecting tapering with this slide calliper rule is that 1: 4 oil drilling tools female adapter reamer hole outside diameter Q need add compensation rate L by 6 of spherical contacts at two steels of slide calliper rule
1≈ 0.52mm, Q=measured value L+30+0.52.
In like manner, can calculate that to detect tapering be that the slide calliper rule of 1: 6 oil drilling tools female adapter reamer hole outside diameter Q need add compensation rate L by 6 of spherical contacts at two steels of slide calliper rule
1' ≈ 0.34mm, Q=measured value L+30+0.34.
By the calculating to this kind of calliper compensation rate, can calculate compensation rate is constant, that is: tapering is to approximate 0.52mm at 1: 4 o'clock; Tapering is to approximate 0.34mm at 1: 6 o'clock.During measurement, can accurately measure the true value of Q value, finally finish measurement drilling tool female adapter reamer hole outside diameter according to the slide calliper rule of the different choice correspondence of tapering.
Claims (4)
1. an oil drilling tools female adapter taper hole outside diameter is measured special-purpose slide calliper rule, mainly form by main dip stick (1), fixed ruler (2), vernier (3) and spherical contact (6), main dip stick (1) is the rectangle ruler, main dip stick has the length scale on (1), vernier (3) has scale, it is characterized in that: the end at main dip stick (1) is fixed with fixed ruler (2), vernier (3) is arranged on main dip stick (1), fixed ruler (2) is parallel with vernier (3), fixes a spherical contact (6) respectively at the lateral surface of fixed ruler (2) and vernier (3).
2. oil drilling tools female adapter taper hole outside diameter according to claim 1 is measured special-purpose slide calliper rule, it is characterized in that: be fixed with fixed reference piece (4) in the outside of fixed ruler (2), be fixed with the reference block that moves about (5) in the outside of vernier (3), the last plane of the fixed reference piece (4) and the reference block (5) that moves about is in same plane.
3. oil drilling tools female adapter taper hole outside diameter according to claim 1 and 2 is measured special-purpose slide calliper rule, it is characterized in that: the diameter of spherical contact (6) is 5mm, and spherical contact (6) center is 4mm to the height on fixed reference piece (4) and the last plane of the reference block that moves about (5).
4. oil drilling tools female adapter taper hole outside diameter according to claim 1 and 2 is measured special-purpose slide calliper rule, it is characterized in that: be fixed with handle (7) on main dip stick (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201730453U CN201476741U (en) | 2009-09-02 | 2009-09-02 | Special caliper for measuring large-end diameter of taper hole of oil drill female adaptor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201730453U CN201476741U (en) | 2009-09-02 | 2009-09-02 | Special caliper for measuring large-end diameter of taper hole of oil drill female adaptor |
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| Publication Number | Publication Date |
|---|---|
| CN201476741U true CN201476741U (en) | 2010-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201730453U Expired - Lifetime CN201476741U (en) | 2009-09-02 | 2009-09-02 | Special caliper for measuring large-end diameter of taper hole of oil drill female adaptor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109315A (en) * | 2011-01-09 | 2011-06-29 | 无锡银联机械有限公司 | Rapid detection tool for large taper hole |
| CN102322780A (en) * | 2011-05-25 | 2012-01-18 | 浙江浦江齿轮有限公司 | Measurer and measuring method for intermediate diameter of steering nut raceway |
| CN102384709A (en) * | 2010-09-01 | 2012-03-21 | 中国石油天然气集团公司 | Chamfer diameter measurement method for oil drilling tool connector |
| CN107063049A (en) * | 2017-06-30 | 2017-08-18 | 青岛兰石重型机械设备有限公司 | A kind of annular groove central diameter survey tool and its application method |
| CN110617762A (en) * | 2019-10-30 | 2019-12-27 | 江苏理工学院 | Taper hole angle and angular deviation measuring instrument |
| CN111156939A (en) * | 2019-12-30 | 2020-05-15 | 沈阳恒屹实业有限公司 | Device and method for measuring main sealing surface of three-eccentric center butterfly valve |
-
2009
- 2009-09-02 CN CN2009201730453U patent/CN201476741U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384709A (en) * | 2010-09-01 | 2012-03-21 | 中国石油天然气集团公司 | Chamfer diameter measurement method for oil drilling tool connector |
| CN102384709B (en) * | 2010-09-01 | 2015-12-02 | 中国石油天然气集团公司 | A kind of chamfer diameter measurement method for oil drilling tool connector |
| CN102109315A (en) * | 2011-01-09 | 2011-06-29 | 无锡银联机械有限公司 | Rapid detection tool for large taper hole |
| CN102322780A (en) * | 2011-05-25 | 2012-01-18 | 浙江浦江齿轮有限公司 | Measurer and measuring method for intermediate diameter of steering nut raceway |
| CN107063049A (en) * | 2017-06-30 | 2017-08-18 | 青岛兰石重型机械设备有限公司 | A kind of annular groove central diameter survey tool and its application method |
| CN110617762A (en) * | 2019-10-30 | 2019-12-27 | 江苏理工学院 | Taper hole angle and angular deviation measuring instrument |
| CN111156939A (en) * | 2019-12-30 | 2020-05-15 | 沈阳恒屹实业有限公司 | Device and method for measuring main sealing surface of three-eccentric center butterfly valve |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100519 |