CN103128380A - Petroleum sleeve joint chaser blade - Google Patents
Petroleum sleeve joint chaser blade Download PDFInfo
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- CN103128380A CN103128380A CN201310090299XA CN201310090299A CN103128380A CN 103128380 A CN103128380 A CN 103128380A CN 201310090299X A CN201310090299X A CN 201310090299XA CN 201310090299 A CN201310090299 A CN 201310090299A CN 103128380 A CN103128380 A CN 103128380A
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- tooth
- cutting
- chaser
- sleeve joint
- circular arc
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Abstract
The invention discloses a petroleum sleeve joint thread chaser blade. The petroleum sleeve joint thread chaser blade comprises a chaser body, a cutting tooth portion and a locating hole, wherein the chaser body is a triangular cutter body, a work plane is arranged on the side face of the chaser body, a locating surface is arranged on the bottom surface of the chaser body, the locating hole is arranged in the chaser body, the cutting tooth portion is arranged on the work plane and is composed of a refined cutting tooth and four rough cutting teeth, the tooth crest of the refined cutting tooth is a smooth arc in shape and is matched with the thread form of a thread, the tooth crest of each rough cutting tooth is provided with an arc-linear tooth form and is smaller than the thread form of the thread, the tooth bottoms of the refined cutting tooth and the rough cutting teeth are all arc-shaped, the differences of the tooth crests of the rough cutting teeth gradually increase relative to the refined cutting tooth, the radius R of the arc at the tooth crest of the refined cutting tooth is with a range of 0.432+/- 015mm, the radius R of the arc at the tooth bottom of the refined cutting tooth is 0.488-0.513mm. The petroleum sleeve joint thread chaser blade adopts a free type cutting mode, is small in cutting resistance, is long in service life, and is high in product accuracy and production efficiency.
Description
Technical field
The present invention relates to a kind of threading tool, particularly a kind of petroleum sleeve joint chaser sheet.
Background technology
In the petroleum drilling and mining process, because sleeve pipe is complicated at the ground of several kms lower stress, condition of work is abominable, and casing joint is the weak link of the book of casing string, leaks and slippage this position generation of being everlasting.Casing joint determines the tensile strength of whole petroleum casing pipe, improves tensile strength and should study the stressed of petroleum sleeve joint screw thread, reduces stress and concentrates, make screw thread stressed evenly, therefore require screw tool rational in infrastructure, between each tooth, load is evenly distributed, and requires sealing property to improve.The cutter that uses in the market uses structure mostly to be bidentate shape or three odontoids, adopts repeatedly feed to complete the processing of profile of tooth more, and working (machining) efficiency is low; And the cutting way of the present cutter that uses is all the structure that adopts non-free cutting, and each cutting teeth is full tooth form cutting, and cutting resistance is large, and chip removal is not smooth, and cutting-tool's used life is low.
Summary of the invention
For addressing the above problem, the object of the present invention is to provide the petroleum sleeve joint chaser sheet that a kind of cutting resistance is little, Product Precision is high, production efficiency is high.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A kind of petroleum sleeve joint chaser sheet comprises cutter hub, cutting teeth section and locating hole, and described cutter hub is the triangle cutter hub, and its side is provided with working face, and the bottom surface is provided with locating surface; Described locating hole is located on cutter hub; Described cutting teeth section is located on described working face, and described cutting teeth section is comprised of 1 finishing tooth and 4 roughing tooths; Described finishing tooth tooth top is the smooth shape of circular arc, and is complementary with the tooth form of described screw thread, and described roughing tooth tooth top is circular arc-straight line profile of tooth, and less than the tooth form of described screw thread; Be circular arc at the bottom of the tooth of described finishing tooth and roughing tooth; Described roughing tooth increases successively with respect to the tooth top of described finishing tooth is poor; The tooth top circular arc radian R value of described finishing tooth is 0.432 ± 0.015mm, and at the bottom of tooth, circular arc radian R value is 0.488～0.513mm.
Preferably, described roughing tooth is with respect to poor 0.24 ± 0.03mm, 0.45 ± 0.03mm, 0.78 ± 0.03mm, the 1.02 ± 0.03mm of respectively being of the tooth top of described finishing tooth; At the bottom of tooth, difference respectively is 0.097+0.02mm-0.005mm, 0.29 ± 0.03mm, 0.47 ± 0.03mm, 0.67 ± 0.03mm.
Preferably, described working face has two.
Preferably, described locating hole is manhole, and is located at described cutter hub center.
Technique scheme has following beneficial effect:
1) cutting way of petroleum sleeve joint chaser sheet of the present invention is the free style cutting way, and has adopted at the bottom of the poor and tooth of rational tooth top poorly, has solved the load problem pockety between each tooth.In when cutting, less than form of thread, not the holotype cutting due to the profile of tooth of roughing tooth, so cutting resistance is less than the cutting force of holotype cutting during cutting, although finishing tooth is the holotype cutting, the chipping allowance when cutting is very little, cutting force is less.
2) petroleum sleeve joint chaser sheet of the present invention adopts five tooth profiles of tooth of 1 finishing tooth and 4 finishing tooths, just can complete processing maximum twice, rigidity lathe time processing preferably just can be completed the processing of workpiece, and production and processing efficient is the several times of existing process tool.
3) the present invention has improved the required precision of circular arc at the bottom of tooth top circular arc and tooth, the finishing tooth tooth top is designed to the smooth shape of circular arc, the roughing tooth tooth top is designed to circular arc-straight line profile of tooth, all be designed to circular arc at the bottom of the tooth of finishing tooth and roughing tooth, and designed the radian of circular arc at the bottom of rational tooth top circular arc and tooth, can improve the surface smoothness of product, and reduce cutting resistance.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with the specific embodiment of the present invention and coordinate accompanying drawing that this patent is elaborated.
Description of drawings
Fig. 1 is the structural representation of petroleum sleeve joint chaser sheet of the present invention.
Fig. 2 is the schematic diagram of the cutting teeth section of petroleum sleeve joint chaser sheet shown in Figure 1.
The specific embodiment
As depicted in figs. 1 and 2, petroleum sleeve joint chaser sheet of the present invention comprises cutter hub 1, cutting teeth section 3 and locating hole, and described cutter hub 1 is the triangle cutter hub, and its side is provided with working face 2, and the bottom surface is provided with locating surface 4; Described locating hole 5 is located on cutter hub 1; Described cutting teeth section 3 is located on described working face 2, and described cutting teeth section 3 is comprised of 1 finishing tooth 31 and 4 roughing tooths 32; Described finishing tooth 31 tooth tops are the smooth shape of circular arc, and are complementary with the tooth form of described screw thread, and described roughing tooth 32 tooth tops are circular arc-straight line profile of tooth, and less than the tooth form of described screw thread; Be circular arc at the bottom of the tooth of described finishing tooth 31 and roughing tooth 32; Described roughing tooth 32 increases successively with respect to the tooth top of described finishing tooth 31 is poor; The radian R value of the tooth top circular arc B of described finishing tooth 31 is 0.432 ± 0.015mm, and at the bottom of tooth, the radian R value of circular arc A is 0.488～0.513mm.
This petroleum sleeve joint chaser sheet has designed circular arc radian at the bottom of rational tooth top circular arc and tooth, improves the surface smoothness of product, and has reduced cutting resistance.
This petroleum sleeve joint chaser sheet adopts free style cutting way, and between each tooth, load is evenly distributed, and when cutting, less than form of thread, is not the holotype cutting due to the profile of tooth of roughing tooth 32, thus during cutting cutting resistance less than the cutting force of holotype cutting.Finishing tooth 31 is the holotype cutting, makes the cutting cross section comprise a complete form of thread, to guarantee geometric accuracy and the surface smoothness of thread tooth.
As shown in Figure 2,1 finishing tooth 31 and 4 roughing tooths 32 are arranged sequentially according to what successively decrease highly successively along described working face.Adopt five tooth profiles of tooth, production and processing efficient improves.Roughing tooth 32 respectively is 0.24 ± 0.03mm, 0.45 ± 0.03mm, 0.78 ± 0.03mm, 1.02 ± 0.03mm with respect to the poor C of the tooth top of described finishing tooth 31; At the bottom of tooth, poor D respectively is 0.097+0.02mm-0.005mm, 0.29 ± 0.03mm, 0.47 ± 0.03mm, 0.67 ± 0.03mm.Such parameter designing makes the tooth depth of roughing tooth 32 progressively close to finishing tooth 31 tooth depths, and cutting resistance reduces, and load is evenly distributed.
In the present embodiment, the both sides of triangle cutter hub 1 respectively arrange a working face 2, after a working face damages, can rotate cutter hub along locating hole, can use another working face.The locating hole 5 that is positioned at cutter hub 1 center is manhole, is used for blade is arranged on knife rest.
The above has done detailed description to embodiments of the present invention by reference to the accompanying drawings, but the present invention is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, can also make a variety of changes under the prerequisite that does not break away from aim of the present invention.
Claims (4)
1. a petroleum sleeve joint chaser sheet, comprise cutter hub, cutting teeth section and locating hole, it is characterized in that: described cutter hub is the triangle cutter hub, and its side is provided with working face, and the bottom surface is provided with locating surface; Described locating hole is located on cutter hub; Described cutting teeth section is located on described working face, and is comprised of 1 finishing tooth and 4 roughing tooths; Described finishing tooth tooth top is the smooth shape of circular arc, and is complementary with the tooth form of described screw thread, and described roughing tooth tooth top is circular arc-straight line profile of tooth, and less than the tooth form of described screw thread; Be circular arc at the bottom of the tooth of described finishing tooth and roughing tooth; Described roughing tooth increases successively with respect to the tooth top of described finishing tooth is poor; The tooth top circular arc radian R value of described finishing tooth is 0.432 ± 0.015mm, and at the bottom of tooth, circular arc radian R value is 0.488～0.513mm.
2. petroleum sleeve joint chaser sheet according to claim 1, it is characterized in that: described roughing tooth is with respect to poor 0.24 ± 0.03mm, 0.45 ± 0.03mm, 0.78 ± 0.03mm, the 1.02 ± 0.03mm of respectively being of the tooth top of described finishing tooth; At the bottom of tooth, difference respectively is 0.097+0.02mm-0.005mm, 0.29 ± 0.03mm, 0.47 ± 0.03mm, 0.67 ± 0.03mm.
3. petroleum sleeve joint chaser sheet according to claim 2, it is characterized in that: described working face has two.
4. petroleum sleeve joint chaser sheet according to claim 3, it is characterized in that: described locating hole is manhole, and is located at described cutter hub center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310090299XA CN103128380A (en) | 2013-03-21 | 2013-03-21 | Petroleum sleeve joint chaser blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310090299XA CN103128380A (en) | 2013-03-21 | 2013-03-21 | Petroleum sleeve joint chaser blade |
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| Publication Number | Publication Date |
|---|---|
| CN103128380A true CN103128380A (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310090299XA Pending CN103128380A (en) | 2013-03-21 | 2013-03-21 | Petroleum sleeve joint chaser blade |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057715A (en) * | 2015-09-06 | 2015-11-18 | 昆山华辰精密工具有限公司 | Double-hole double-edged blade |
| CN111266675A (en) * | 2020-03-05 | 2020-06-12 | 中国石油天然气集团有限公司 | Machining method of wedge-shaped threaded oil casing joint |
| CN113333875A (en) * | 2021-06-28 | 2021-09-03 | 湘潭大学 | Thread chasing tool |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60172403A (en) * | 1984-02-17 | 1985-09-05 | Nippon Kokan Kk <Nkk> | Coated cemented carbide chaser |
| CN2065108U (en) * | 1989-12-08 | 1990-11-07 | 机械电子工业部成都工具研究所 | Chaser |
| JP2006130579A (en) * | 2004-11-02 | 2006-05-25 | Sumitomo Metal Ind Ltd | Chaser |
| CN202344067U (en) * | 2011-11-25 | 2012-07-25 | 昆山华辰精密工具有限公司 | Threading insert for machining oil casing couplings |
| CN102756185A (en) * | 2012-07-10 | 2012-10-31 | 天津钢管集团股份有限公司 | Thread chaser for cutting double-line pipe threads |
| CN202571509U (en) * | 2012-05-11 | 2012-12-05 | 昆山华辰精密工具有限公司 | Thread cutter blade for machining petroleum pipes |
| CN203197415U (en) * | 2013-03-21 | 2013-09-18 | 昆山华辰精密工具有限公司 | Oil casing connector thread chasing tool blade |
-
2013
- 2013-03-21 CN CN201310090299XA patent/CN103128380A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60172403A (en) * | 1984-02-17 | 1985-09-05 | Nippon Kokan Kk <Nkk> | Coated cemented carbide chaser |
| CN2065108U (en) * | 1989-12-08 | 1990-11-07 | 机械电子工业部成都工具研究所 | Chaser |
| JP2006130579A (en) * | 2004-11-02 | 2006-05-25 | Sumitomo Metal Ind Ltd | Chaser |
| CN202344067U (en) * | 2011-11-25 | 2012-07-25 | 昆山华辰精密工具有限公司 | Threading insert for machining oil casing couplings |
| CN202571509U (en) * | 2012-05-11 | 2012-12-05 | 昆山华辰精密工具有限公司 | Thread cutter blade for machining petroleum pipes |
| CN102756185A (en) * | 2012-07-10 | 2012-10-31 | 天津钢管集团股份有限公司 | Thread chaser for cutting double-line pipe threads |
| CN203197415U (en) * | 2013-03-21 | 2013-09-18 | 昆山华辰精密工具有限公司 | Oil casing connector thread chasing tool blade |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057715A (en) * | 2015-09-06 | 2015-11-18 | 昆山华辰精密工具有限公司 | Double-hole double-edged blade |
| CN111266675A (en) * | 2020-03-05 | 2020-06-12 | 中国石油天然气集团有限公司 | Machining method of wedge-shaped threaded oil casing joint |
| CN111266675B (en) * | 2020-03-05 | 2021-06-25 | 中国石油天然气集团有限公司 | Machining method of wedge-shaped threaded oil casing joint |
| CN113333875A (en) * | 2021-06-28 | 2021-09-03 | 湘潭大学 | Thread chasing tool |
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Application publication date: 20130605 |