CN211101056U - Straight punching cutter with composite cutting edge for petroleum drill rod - Google Patents
Straight punching cutter with composite cutting edge for petroleum drill rod Download PDFInfo
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- CN211101056U CN211101056U CN201922081869.4U CN201922081869U CN211101056U CN 211101056 U CN211101056 U CN 211101056U CN 201922081869 U CN201922081869 U CN 201922081869U CN 211101056 U CN211101056 U CN 211101056U
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Abstract
The utility model provides a straight punching cutter with a composite cutting edge for an oil drill pipe, which belongs to the technical field of oil drill pipe processing equipment and comprises a cutter body, a flat punching block and an inclined plate, wherein the cutter body is cylindrical; the flat punching block is arranged at the top of the cutter body, the peripheral surface of the flat punching block is formed by a plurality of first side surfaces and a plurality of second side surfaces in a surrounding mode, the second side surfaces are cambered surfaces, the second side surfaces are flush with the peripheral surface of the cutter body, and the first side surfaces and the second side surfaces are arranged around the axis of the cutter body in an alternating mode; the inclined plates are arc-shaped plates and arranged around the axis of the cutter body, and the top surfaces of the inclined plates and the top surface of the flat punching block form a preset included angle; the second side surface, the inner side surface of the inclined plate and the top surface of the cutter body are enclosed to form a groove. The utility model discloses the very big improvement of the straight die cutter of the compound blade of oil drill pipe excision efficiency of straight die cutter is favorable to taking out, prevents that the card is dead.
Description
Technical Field
The utility model belongs to the technical field of oil drill pipe processing equipment, more specifically say, relate to a compound blade of oil drill pipe straight die cutter.
Background
The mud is a drilling fluid commonly used in petroleum drilling, has the functions of supporting balance, carrying rock debris and preventing seepage, can effectively reduce the occurrence of the drill sticking phenomenon, and is particularly suitable for unstable ground layers such as loose ground layers, cracks and easy collapse and block dropping. Slurry is generally conveyed through an oil drill rod, and the pressure on the drill rod can reach about two hundred kilograms in the conveying process, so that the smoothness of an inner hole of the drill rod is ensured, the mechanical property of the slurry is effectively improved, and the eddy current phenomenon is reduced.
The traditional machining method for the inner hole of the drill rod is to remove a welding ring in the drill rod by adopting a turning mode, but is limited by the length-diameter ratio of a turning cutter rod, so that the phenomena of vibration lines and cutter beating are easy to occur, the subsequent polishing difficulty is high, and unstable factors are brought to the quality of the drill rod. Therefore, the cutting edge is passivated due to the fact that the existing cutting knife works at a high temperature state when working, the cutting knife needs to be replaced frequently, and the cutting efficiency is low and the cutting knife is difficult to take out.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a straight die cutter of compound blade of oil drill pipe aims at solving the technical problem that current die cutter frequently changes, excision inefficiency and take out the difficulty.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a compound blade of oil drill pipe straight die cutter, includes:
the cutter body is cylindrical;
the flat punching block is arranged at the top of the cutter body, the peripheral surface of the flat punching block is formed by a plurality of first side surfaces and a plurality of second side surfaces in a surrounding mode, the second side surfaces are cambered surfaces, the second side surfaces are flush with the peripheral surface of the cutter body, the first side surfaces and the second side surfaces are alternately arranged around the axis of the cutter body, the top surface of the flat punching block is a plane, and a flat cutting edge is formed at the intersection of the top surface of the flat punching block and the second side surfaces; and
the cutter body is provided with a plurality of inclined plates, the inclined plates are arc-shaped plates and are arranged around the axis of the cutter body, the top surfaces of the inclined plates and the top surface of the flat punching block are arranged at preset included angles, an inclined cutting edge is formed at the intersection of the top surfaces of the inclined plates and the outer side surface of each inclined plate, the outer side surface of each inclined plate is flush with the outer peripheral surface of the cutter body, and the highest point of each inclined cutting edge does not protrude out of the corresponding flat cutting edge;
the second side surface, the inner side surface of the inclined plate and the top surface of the cutter body are enclosed to form a groove.
As another embodiment of the present application, a top surface of the flat impact block is perpendicular to an axis of the cutter body.
As another embodiment of the present application, the highest point of the beveled edge is flush with the flat edge.
As another embodiment of the present application, a bottom surface of the groove is parallel to a top surface of the swash plate.
As another embodiment of the present application, the highest ends of the inclined cutting edges and the lowest ends of the inclined cutting edges are alternately arranged around the axis of the cutter body.
As another embodiment of this application, the bottom of cutter body is equipped with the internal thread hole, the internal thread hole with the cutter body coaxial setting, the internal thread hole is used for being connected with transmission system.
As another embodiment of this application, be equipped with the through-hole on the cutter body, through-hole one end with internal thread hole intercommunication.
As another embodiment of this application, the cutter body periphery is equipped with the clamping face, the clamping face recess in the surface setting of cutter body.
As another embodiment of the present application, the clamping surface is a plane or an arc surface.
As another embodiment of the application, a splicing seam is arranged on the straight stamping knife with the composite cutting edge of the petroleum drill rod, the bottom end of the splicing seam extends to the bottom end surface of the knife body, the top end of the splicing seam at least extends to the top end of the flat stamping block, and a splicing fixing structure is arranged at the bottom of the knife body.
The utility model provides a compound blade of oil drill pipe is directly towards sword's beneficial effect lies in: compared with the prior art, the utility model discloses straight die-cutting sword of compound blade of oil drill pipe is when using, will the utility model discloses straight die-cutting sword of compound blade of oil drill pipe is connected with transmission system, and transmission system drives the cutter body and carries out die-cut in the inside of drilling rod, die-cut in-process, the flat blade earlier with the drilling rod in weld the ring contact, the ring is in the stable red hot state of shaping this moment, the effect of flat blade descends the welding ring in the drilling rod and cuts off and fall into two parts, then the oblique blade progressively with the drilling rod in the welding ring contact will weld the ring excision. The utility model discloses a compound form of flat blade and oblique blade carries out the excision of welding the ring, very big improvement the excision efficiency of straight die cutter, the setting up of recess provides accommodation space for the welding ring that dashes down moreover, prevents that the card is dead, is favorable to taking out, can directly the coping after the passivation of oblique blade, need not change the cutter again.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic perspective view of a straight-punching cutter with a composite cutting edge for an oil drill pipe according to an embodiment of the present invention;
fig. 2 is a schematic top view of a straight punch knife with a composite cutting edge for an oil drill pipe according to an embodiment of the present invention;
fig. 3 is a schematic view of a bottom view structure of the straight-punching cutter with a composite cutting edge for an oil drill pipe according to the first embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of A-A of FIG. 3;
fig. 5 is a schematic perspective view of a straight impact cutter with a composite cutting edge for an oil drill pipe according to a second embodiment of the present invention;
in the figure: 1. a cutter body; 2. flat punching; 3. a sloping plate; 4. a groove; 5. a flat cutting edge; 6. an inclined cutting edge; 7. an internally threaded bore; 8. a through hole; 9. a clamping surface; 10. splicing seams; 11. positioning a groove; 12. a positioning member.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 5, the composite cutting edge straight punch of the oil drill pipe of the present invention will now be described. The straight punching cutter with the composite cutting edge of the petroleum drill pipe comprises a cutter body 1, a flat punching block 2 and an inclined plate 3, wherein the cutter body 1 is cylindrical; the flat punching block 2 is arranged at the top of the cutter body 1, the peripheral surface of the flat punching block 2 is formed by a plurality of first side surfaces and a plurality of second side surfaces in a surrounding mode, the second side surfaces are cambered surfaces, the second side surfaces are flush with the peripheral surface of the cutter body 1, the first side surfaces and the second side surfaces are alternately arranged around the axis of the cutter body 1, the top surface of the flat punching block 2 is a plane, and a flat cutting edge 5 is formed at the intersection of the top surface of the flat punching block 2 and the second side surfaces; the cutter body is characterized in that a plurality of inclined plates 3 are arranged, each inclined plate 3 is an arc-shaped plate, the inclined plates 3 are arranged around the axis of the cutter body 1, the top surfaces of the inclined plates 3 and the top surface of the flat punching block 2 are arranged at preset included angles, an inclined cutting edge 6 is formed at the intersection of the top surface of each inclined plate 3 and the outer side surface of each inclined plate 3, the outer side surface of each inclined plate 3 is flush with the outer peripheral surface of the cutter body 1, and the highest point of each inclined cutting edge 6 does; the second side surface, the inner side surface of the inclined plate 3 and the top surface of the cutter body 1 are enclosed to form a groove 4.
The utility model provides a straight die cutter of compound blade of oil drill pipe, compared with the prior art, the utility model discloses straight die cutter of compound blade of oil drill pipe is when using, will the utility model discloses straight die cutter of compound blade of oil drill pipe is connected with transmission system, and transmission system drives cutter body 1 and carries out die-cut in the inside of drilling rod, and die-cut in-process, 5 first with the welding ring contact in the drilling rod of flat blade, the welding ring is in the red hot state that the shaping is stable this moment, and the welding ring in the drilling rod is cut off into two parts under the effect of flat blade 5, then 6 progressively with the drilling rod of oblique blade the welding ring contact will weld the ring excision. The utility model discloses a compound form of flat blade 5 and oblique blade 6 carries out the excision of welding the ring, very big improvement the excision efficiency of straight die cutter, recess 4 sets up to the welding ring that dashes down provides accommodation space moreover, prevents that the card is dead, is favorable to taking out, can directly the coping after the passivation of oblique blade 6, need not change the cutter again.
As a specific embodiment of the compound cutting edge direct impact cutter for the oil drill pipe, please refer to fig. 1 and 5, when the inclined plates 3 are two, the maximum distance that the two inclined plates 3 reach the first side is the same as the width of the flat impact block 2. The punching force is uniform when punching is guaranteed, and certain punching capability can be achieved even when the flat cutting edge 5 or the inclined cutting edge 6 is passivated.
Wherein, first side can be plane or cambered surface, guarantees the variety of cutter body 1 processing.
As a specific embodiment of the composite cutting edge straight punch of the oil drill pipe provided by the present invention, please refer to fig. 1 to 5, the top surface of the flat punch 1 is perpendicular to the axis of the cutter body 1. The punching device can ensure that the flat punching block 2 accurately breaks the inner welding ring when punching in the drill rod, and ensures the subsequent cutting of the welding ring by the inclined cutting edge 6.
As a specific embodiment of the composite cutting edge straight-punching cutter for the petroleum drill pipe, please refer to fig. 1 to 5, a plurality of inclined plates 3 are uniformly distributed around the axis of the cutter body 1. The inclined plate 3 is uniformly arranged to ensure the uniform distribution of the inclined cutting edges 6, the symmetrical and uniform force application can be ensured when the welding ring in the drill rod is punched, the continuity is realized, the cutting of the welding ring is easy, the scraping of the inner wall of the drill rod is prevented, and the smooth degree of the inner wall of the drill rod is ensured.
As a specific embodiment of the composite cutting edge straight-punching cutter for the petroleum drill pipe provided by the present invention, please refer to fig. 1 and 5, the highest point of the inclined cutting edge 6 is flush with the flat cutting edge 5. When the flat cutting edge 5 acts on the welding ring in the drill rod to cut off the welding ring, the highest point of the inclined cutting edge 6 is in contact with the welding ring, the welding ring is cut off, and the welding ring is prevented from being pulled to influence the flattening degree of the inner wall of the drill rod.
As a specific embodiment of the straight punch knife with composite cutting edge for oil drill pipe provided by the present invention, please refer to fig. 1 and 5, the bottom surface of the groove 4 is parallel to the top surface of the sloping plate 3. The bottom surface of the groove 4 and the top surface of the flat punching block 2 are arranged at a preset included angle, so that the height of the inclined cutting edge 6 can be guaranteed, the grinding is facilitated, the phenomena of different heights and uneven strength of the cutting edge during grinding are prevented, and the punching quality of the butt welding ring is improved.
As a specific embodiment of the compound cutting edge straight punch of the oil drill pipe provided by the present invention, please refer to fig. 1 and 5, the highest end of the inclined cutting edge 6 and the lowest end of the inclined cutting edge 6 are alternatively arranged around the axis of the cutter body 1. Because the highest end of the inclined cutting edge 6 contacts with the welding ring firstly in punching, the alternative arrangement of the highest end and the lowest end can prevent punching points from being concentrated, and the punching quality of the butt welding ring is improved.
As a specific embodiment of the compound blade of oil drill pipe straight die cutter, please refer to fig. 2 to 4, the bottom of cutter body 1 is equipped with internal thread hole 7, and internal thread hole 7 and the coaxial setting of cutter body 1, internal thread hole 7 are used for being connected with transmission system. The tool is connected with a transmission system through threads, so that the tool is easy to assemble and disassemble, convenient to operate and low in labor intensity, the inner threaded hole 7 and the tool body 1 are coaxially arranged, so that sufficient guidance can be provided for the tool body 1, and the coaxiality of the tool body 1 and the inside of a drill rod is improved.
As a specific embodiment of the compound blade straight-punching cutter of the oil drill pipe, please refer to fig. 2 to 4, the cutter body 1 is provided with a through hole 8, and one end of the through hole 8 is communicated with the internal thread hole 7. The through hole 8 is not only beneficial to heat dissipation of the punching cutter, but also capable of reducing the material consumption of the cutter body 1 and reducing the manufacturing cost, and the quality of the cutter body 1 is reduced, so that the phenomenon of head hanging of the rod end can be reduced to a certain extent.
As a specific embodiment of the composite cutting edge straight-punching cutter for petroleum drill pipe, please refer to fig. 1 and 5, the periphery of the cutter body 1 is provided with the clamping surface 9, and the clamping surface 9 is recessed in the outer surface of the cutter body 1. The sunken setting of clamping face 9 can form the space of placing of clamping means, and clamping means can be the spanner, makes things convenient for the spanner to carry out the loading and unloading of die cutter to the centre gripping of cutter body 1, reduces intensity of labour.
Referring to fig. 1 and 5, the clamping surface 9 is a plane or an arc surface. When the clamping surface 9 is a plane, the clamping surface is suitable for clamping by a wrench, so that the clamping stability of the wrench can be improved, and the wrench can shake when being placed for clamping; when the clamping surface 9 is an arc surface, the clamping is suitable for clamping by arc pliers, and the assembly and disassembly are convenient.
As a specific embodiment of the compound blade of oil drill pipe vertical impact sword, please refer to and show fig. 5, the utility model discloses be equipped with splice seam 10 on the compound blade vertical impact sword of oil drill pipe, splice seam 10's bottom extends to the bottom face of cutter body 1, and splice seam 10's top extends to the top of flat punching block 2 at least, and the bottom of cutter body 1 is equipped with concatenation fixed knot and constructs. Splice seam 10 will the utility model discloses the straight die-cut sword of the compound blade of oil drill pipe falls into a plurality of concatenation bodies, if produce the dead phenomenon of card, easily with cutter body 1 and transmission system separation, prevent to damage transmission system, the cost is lower, relatively is suitable for the die-cut of reducing drilling rod inner weld ring.
In particular, the splice seam 10 may extend not only to the flat punch 2, but also to the flat punch 2 and the sloping plate 3.
As a specific implementation mode of the compound blade of oil drill pipe straight die cutter, please refer to fig. 5, concatenation fixed knot constructs including constant head tank 11 and setting element 12, and on the surface of cutter body 1 was located to constant head tank 11, setting element 12 joint was connected in constant head tank 11 with the cooperation of constant head tank 11 and was used for the fixed shape cost of the compound blade of oil drill pipe straight die cutter with a plurality of concatenations. The outer surface of the positioning piece 12 is recessed in the outer surface of the cutter body 1, so that the influence of the positioning piece 12 on the smoothness of the inner wall of the drill rod during punching can be prevented; the positioning element 12 may be an elastic element or a rigid element, the elastic element may be an elastic ring, and the rigid element may be a snap, which facilitates the assembly of the splice to form the knife body 1.
As a specific implementation mode of the straight die cutter with the composite cutting edge for the petroleum drill pipe please refer to fig. 3 to 4, one end of the cutter body 1, which is far away from the flat cutting edge 5 or the inclined cutting edge 6, is provided with an excessive angle, the sharp edge can be removed by the setting of the excessive angle, the safety is ensured, the guiding is facilitated, the coaxiality of the die cutter and the inner wall of the drill pipe is ensured, burrs can be removed, and the external appearance of the die cutter is favorable for being attractive.
As a specific embodiment of the compound blade of oil drill pipe straight die cutter, recess 4's bottom surface is equipped with a plurality of archs, and a plurality of archs are less than the top surface of swash plate 3 around the axis evenly distributed of cutter body 1, bellied top surface. After the punching of the butt welding ring is completed, the space between the adjacent bulges can be conveniently detached, so that the welding ring is prevented from being adhered to the bottom surface of the groove 4, and the service life of the punching cutter is prolonged.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Straight die cutter of compound blade of oil drill pipe, its characterized in that includes:
the cutter body is cylindrical;
the flat punching block is arranged at the top of the cutter body, the peripheral surface of the flat punching block is formed by a plurality of first side surfaces and a plurality of second side surfaces in a surrounding mode, the second side surfaces are cambered surfaces, the second side surfaces are flush with the peripheral surface of the cutter body, the first side surfaces and the second side surfaces are alternately arranged around the axis of the cutter body, the top surface of the flat punching block is a plane, and a flat cutting edge is formed at the intersection of the top surface of the flat punching block and the second side surfaces; and
the cutter body is provided with a plurality of inclined plates, the inclined plates are arc-shaped plates and are arranged around the axis of the cutter body, the top surfaces of the inclined plates and the top surface of the flat punching block are arranged at preset included angles, an inclined cutting edge is formed at the intersection of the top surfaces of the inclined plates and the outer side surface of each inclined plate, the outer side surface of each inclined plate is flush with the outer peripheral surface of the cutter body, and the highest point of each inclined cutting edge does not protrude out of the corresponding flat cutting edge;
the second side surface, the inner side surface of the inclined plate and the top surface of the cutter body are enclosed to form a groove.
2. The composite cutting edge straight punch knife of the oil drill pipe as claimed in claim 1, wherein the top surface of the flat punch block is perpendicular to the axis of the knife body.
3. The composite cutting edge straight die cutter of claim 1, wherein the highest point of the inclined cutting edge is flush with the flat cutting edge.
4. The composite cutting edge straight die cutter for the petroleum drill pipe as claimed in claim 1, wherein the bottom surface of the groove is parallel to the top surface of the sloping plate.
5. The composite cutting edge straight die cutter of claim 1, wherein the highest end of the inclined cutting edge and the lowest end of the inclined cutting edge are alternately arranged around the axis of the cutter body.
6. The compound cutting edge straight-punching cutter for the petroleum drill pipe as defined in any one of claims 1 to 5, wherein the bottom end of the cutter body is provided with an internal threaded hole, the internal threaded hole is coaxially arranged with the cutter body, and the internal threaded hole is used for connecting with a transmission system.
7. The composite cutting edge straight punch knife of the oil drill pipe as claimed in claim 6, wherein the knife body is provided with a through hole, and one end of the through hole is communicated with the internal thread hole.
8. The compound cutting edge straight punch knife of the petroleum drill pipe as claimed in any one of the claims 1 to 5, wherein the outer periphery of the knife body is provided with a clamping surface, and the clamping surface is recessed in the outer surface of the knife body.
9. The composite cutting edge straight die cutter for the petroleum drill pipe as claimed in claim 8, wherein the clamping surface is a plane surface or an arc surface.
10. The compound cutting edge straight punch of the oil drill pipe as claimed in any one of the claims 1 to 5, wherein the compound cutting edge straight punch of the oil drill pipe is provided with a splicing seam, the bottom end of the splicing seam extends to the bottom end surface of the cutter body, the top end of the splicing seam extends to at least the top end of the flat punch block, and the bottom of the cutter body is provided with a splicing fixing structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922081869.4U CN211101056U (en) | 2019-11-27 | 2019-11-27 | Straight punching cutter with composite cutting edge for petroleum drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922081869.4U CN211101056U (en) | 2019-11-27 | 2019-11-27 | Straight punching cutter with composite cutting edge for petroleum drill rod |
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| Publication Number | Publication Date |
|---|---|
| CN211101056U true CN211101056U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922081869.4U Active CN211101056U (en) | 2019-11-27 | 2019-11-27 | Straight punching cutter with composite cutting edge for petroleum drill rod |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113976758A (en) * | 2021-09-07 | 2022-01-28 | 广州兴会拉链有限公司 | Zipper tooth continuous production forming equipment |
-
2019
- 2019-11-27 CN CN201922081869.4U patent/CN211101056U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113976758A (en) * | 2021-09-07 | 2022-01-28 | 广州兴会拉链有限公司 | Zipper tooth continuous production forming equipment |
| CN113976758B (en) * | 2021-09-07 | 2024-01-23 | 广州兴会拉链有限公司 | Continuous production molding equipment for zipper teeth |
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Effective date of registration: 20210304 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Petroleum Equipment Manufacturing Co.,Ltd. Patentee after: BOHAI NKK DRILLING PIPE Co.,Ltd. Address before: PetroChina Tianjin building, 83 Second Street, Binhai New Area Economic and Technological Development Zone, Tianjin Patentee before: CNPC Bohai Petroleum Equipment Manufacturing Co.,Ltd. Patentee before: BOHAI NKK DRILLING PIPE Co.,Ltd. |