CN203197415U - Oil casing connector thread chasing tool blade - Google Patents
Oil casing connector thread chasing tool blade Download PDFInfo
- Publication number
- CN203197415U CN203197415U CN 201320128676 CN201320128676U CN203197415U CN 203197415 U CN203197415 U CN 203197415U CN 201320128676 CN201320128676 CN 201320128676 CN 201320128676 U CN201320128676 U CN 201320128676U CN 203197415 U CN203197415 U CN 203197415U
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- tooth
- cutting
- circular arc
- roughing
- tool body
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Abstract
The utility model discloses an oil casing connector thread chasing tool blade which comprises a tool body, a cutting tooth part and a positioning hole. The tool body is a triangular tool body, a working face is arranged on the side face of the tool body, and a positioning face is arranged on the bottom face of the tool body. The positioning hole is formed in the tool body. The cutting tooth part is arranged on the working face and is composed of one accurate cutting tooth and four rough cutting teeth. The top of the accurate cutting tooth is of a circular arc smooth shape and is matched with the tooth shapes of threads. The tops of the rough cutting teeth are of an arc-line tooth shape and are smaller than the tooth shapes of the threads. The bottom of the accurate cutting tooth and the bottoms of the rough cutting teeth are both of an arc shape. The tooth top difference of the rough cutting teeth increases in sequence relative to the tooth top difference of the accurate cutting tooth. The R value of the tooth top arc of the accurate cutting tooth is 0.432+/-0.015mm, and the R value of the tooth bottom arc of the accurate cutting tooth is 0.488-0.513mm. According to the oil casing connector thread chasing tool blade, the freestyle cutting mode is used, cutting resistance is small, the service life of tools is long, and the production precision and the production efficiency are high.
Description
Technical field
The utility model 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, load is evenly distributed between each tooth, 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 finish the processing of profile of tooth more, and working (machining) efficiency is low; And the cutting way of present employed cutter all is 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.
The utility model content
For addressing the above problem, the purpose of this utility model is to provide the petroleum sleeve joint chaser that a kind of cutting resistance is little, Product Precision is high, production efficiency is high sheet.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the utility model 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 the cutter hub; Described cutting teeth section is located on the 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 circular arc radian R value is 0.488～0.513mm at the bottom of the tooth.
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; Difference respectively is at the bottom of the tooth
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 the utility model petroleum sleeve joint chaser sheet 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.When cutting, because the profile of tooth of roughing tooth less than form of thread, is not the holotype cutting, so cutting resistance is less than the cutting force of holotype cutting when cutting, although finishing tooth is the holotype cutting, the chipping allowance when cutting is very little, and cutting force is less.
2) the utility model petroleum sleeve joint chaser sheet adopts five tooth profiles of tooth of 1 finishing tooth and 4 finishing tooths, just can finish processing maximum twice, rigidity preferably lathe time processing just can be finished the processing of workpiece, and production and processing efficient is the several times of existing process tool.
3) the utility model has improved the required precision of circular arc at the bottom of tooth top circular arc and the 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 the tooth, can improve the surface smoothness of product, and reduce cutting resistance.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, below with the specific embodiment of the present utility model and cooperate accompanying drawing that this patent is elaborated.
Description of drawings
Fig. 1 is the structural representation of the utility model petroleum sleeve joint chaser sheet.
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, the utility model petroleum sleeve joint chaser sheet 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 the cutter hub 1; Described cutting teeth section 3 is located on the 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 the radian R value of circular arc A is 0.488～0.513mm at the bottom of the tooth.
This petroleum sleeve joint chaser sheet has designed circular arc radian at the bottom of rational tooth top circular arc and the tooth, improves the surface smoothness of product, and has reduced cutting resistance.
This petroleum sleeve joint chaser sheet employing free style cutting way, load is evenly distributed between each tooth, when cutting, because the profile of tooth of roughing tooth 32 less than form of thread, is not the holotype cutting, so the cutting force that cutting resistance is cut less than holotype when 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; Poor D respectively is at the bottom of the tooth
0.29 ± 0.03mm, 0.47 ± 0.03mm, 0.67 ± 0.03mm.Such parameter designing so that the tooth depth of roughing tooth 32 progressively close to finishing tooth 31 tooth depths, cutting resistance reduces, 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 installed in knife rest.
The above has done detailed description to embodiment of the present utility model by reference to the accompanying drawings, but the utility model is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, can also under the prerequisite that does not break away from the utility model aim, make a variety of changes.
Claims (4)
1. a petroleum sleeve joint chaser sheet comprises 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 the cutter hub; Described cutting teeth section is located on the 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 circular arc radian R value is 0.488～0.513mm at the bottom of the tooth.
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; Difference respectively is at the bottom of the tooth
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 |
|---|---|---|---|
| CN 201320128676 CN203197415U (en) | 2013-03-21 | 2013-03-21 | Oil casing connector thread chasing tool blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320128676 CN203197415U (en) | 2013-03-21 | 2013-03-21 | Oil casing connector thread chasing tool blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203197415U true CN203197415U (en) | 2013-09-18 |
Family
ID=49141555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320128676 Expired - Fee Related CN203197415U (en) | 2013-03-21 | 2013-03-21 | Oil casing connector thread chasing tool blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203197415U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128380A (en) * | 2013-03-21 | 2013-06-05 | 昆山华辰精密工具有限公司 | Petroleum sleeve joint chaser blade |
| CN103940459A (en) * | 2014-05-09 | 2014-07-23 | 昆山华辰精密工具有限公司 | Tooth-shaped test tool for blade |
-
2013
- 2013-03-21 CN CN 201320128676 patent/CN203197415U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128380A (en) * | 2013-03-21 | 2013-06-05 | 昆山华辰精密工具有限公司 | Petroleum sleeve joint chaser blade |
| CN103940459A (en) * | 2014-05-09 | 2014-07-23 | 昆山华辰精密工具有限公司 | Tooth-shaped test tool for blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20210321 |