CN112096296A - PDC drill bit for grinding fin type oil gas drilling - Google Patents
PDC drill bit for grinding fin type oil gas drilling Download PDFInfo
- Publication number
- CN112096296A CN112096296A CN202011256965.9A CN202011256965A CN112096296A CN 112096296 A CN112096296 A CN 112096296A CN 202011256965 A CN202011256965 A CN 202011256965A CN 112096296 A CN112096296 A CN 112096296A
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- China
- Prior art keywords
- plate
- drill bit
- steel body
- fixedly connected
- sliding
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
- E21B10/602—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a rotary drag type bit with blades
Abstract
The PDC drill bit comprises a drill bit steel body, wherein a plurality of long fins are fixedly connected to the side face of the drill bit steel body, the intervals among the long fins are the same, short fins are fixedly connected to one side, close to the long fins, of the side face of the drill bit steel body, a plurality of diamond composite sheets are fixedly connected to the side faces of the short fins and the long fins, accommodating grooves are formed in the two sides of the drill bit steel body, a water inlet pipe is connected to the inner threads of the drill bit steel body, and locking bolts are connected to the inner threads of the accommodating grooves. According to the invention, the fins in the drill bit are combined by adopting a double fin combination mode of staggered arrangement of long fins and short fins, so that the drilling quality and efficiency of the drill bit can be improved, the water outlet grooves are formed in the short fins, and the water outlet direction of the water outlet grooves faces upwards, so that the problem of water channel blockage during drilling is avoided.
Description
Technical Field
The invention relates to the technical field of oil well drill bits, in particular to a PDC drill bit for grinding fin type oil gas drilling.
Background
The bit is the main tool for breaking rock in the drilling process, the well is formed by breaking rock with the bit, the quality of a well is good, the time used is related to the mutual matching degree between the bit and the stratum besides the characteristics of the rock in the stratum drilled and the performance of the bit itself, the reasonable selection of the bit plays an important role in improving the drilling speed and reducing the comprehensive drilling cost, the bit is one of the important tools for petroleum drilling, whether the bit is suitable for the rock and the quality thereof plays a very important role in selecting the drilling process, especially has a great influence on the drilling quality, the drilling speed and the drilling cost, the PDC bit is a rock breaking tool widely used in the oil and gas exploration and development industries at present, effectively improves the mechanical drilling tool and shortens the drilling period, the PDC drill bit is formed by welding a circular cutting tool on a cylindrical cutting tool and mounting the cutting tool on a drill bit body.
Chinese patent discloses a diamond compact bit with a combined pillar and a manufacturing process of the bit (publication number: CN 100557187C), the patent is a PDC coreless bit, and the combined pillar is fixed in the middle of a bit body; the combined pillar mainly comprises a pillar, a supporting tire body fixed on the pillar body and a PDC fixed on the supporting tire body, wherein a water inlet hole penetrating through the pillar body is further formed in the pillar, and a PDC seat is arranged between the PDC and the pillar. The manufacturing process of the patent is that firstly, a PDC bit body is manufactured by a known method, a space for placing the combined strut is reserved at a specific position of the bit body, then the processed combined strut is fixed on the PDC bit body, and finally, the PDC is fixed on a supporting matrix of the combined strut.
The inside of current PDC drill bit is normally opened and is equipped with the passageway that is used for going out water, but the passageway is easy to be blockked up when drilling to current PDC drill bit is adding man-hour, and is inconvenient to the passageway processing.
Disclosure of Invention
The invention aims to solve the technical problems that a channel for water outlet is always arranged in the conventional PDC drill bit, the channel is easy to block during drilling, and the channel is inconvenient to process during processing of the conventional PDC drill bit.
The purpose of the invention can be realized by the following technical scheme:
a PDC drill bit for grinding fin type oil gas drilling comprises a drill bit steel body, wherein a plurality of long fins are fixedly connected to the side face of the drill bit steel body, the intervals among the long fins are the same, short fins are fixedly connected to one side, close to the long fins, of the side face of the drill bit steel body, a plurality of diamond composite sheets are fixedly connected to the side faces of the short fins and the long fins, accommodating grooves are formed in two sides of the drill bit steel body, a water inlet pipe is connected to the inner portion of the drill bit steel body in a threaded manner, locking bolts are connected to the inner portions of the accommodating grooves in a threaded manner, one ends of two groups of locking bolts respectively abut against two sides of the water inlet pipe, a water inlet groove is formed in the water inlet pipe, a water outlet hole is formed in the bottom end of the water inlet pipe, a plurality of connecting grooves are formed in one side, close to, two ends of the connecting groove are respectively communicated with the water inlet groove and the water outlet groove;
the machining process of the PDC drill bit comprises the following steps:
the method comprises the following steps: the method for manufacturing the PDC bit body is a non-pressure impregnation method or a method for directly manufacturing a steel body type bit body;
step two: fixing the PDC bit body by using a clamp, and respectively processing a thread groove, a connecting groove and a water outlet groove in the PDC bit body and the short fin;
the use method of the clamp comprises the following steps: the drill bit steel body is placed in the placing box with the bottom facing downwards, the electric telescopic rods are started to drive the supporting plate to vertically move, the horizontal height of the drill bit steel body can be adjusted through the supporting plate, then three groups of clamping telescopic rods are started, the output ends of the clamping telescopic rods move towards the inside of the placing box, the bottom of the drill bit steel body is fixed in the placing box, then two groups of sliding telescopic rods are respectively started, after the two groups of sliding telescopic rods are started, the horizontal plate is driven to slide in the sliding groove, when the horizontal plate moves, the telescopic frames on the two sides are driven to slide along the sliding rods through the connecting plate, the two groups of sliding telescopic rods are stopped after adjustment is finished, and the telescopic frames are fixed;
the screw rods on two sides in one group of telescopic frames are synchronously rotated, the screw rods drive the sliding pipe to slide along the fixed pipe after rotating, the sliding pipe can synchronously drive the clamping plate and the arc plate to move when sliding, the arc plate can be tightly attached to one side of the drill steel body and tightly clamp the drill steel body, then the adjusting screw rod is rotated, the supporting plate is supported on the other side of the drill steel body, the side surface of the supporting plate can rotate relative to the adjusting screw rod after supporting the side surface of the drill steel body, and the supporting plate and the adjusting screw rod rotate relative to each other through the rotating block along with the movement of the adjusting screw rod, the steps are repeated, and the other group of telescopic frames and the adjusting screw rod are rotated and adjusted, so that two ends of the drill steel body can be fixed;
step three: and (3) installing the water inlet pipe in the threaded groove in the drill bit steel body, and sealing the part, communicated with the drill bit steel body, of one end of the connecting groove to obtain a finished product.
As a further scheme of the invention: the water outlet groove is fixedly connected with a plurality of barb rods, and the barb rods are arranged in the water outlet groove in a staggered mode.
As a further scheme of the invention: the substrate in the fixture comprises the following mounting methods:
s1: respectively screwing four groups of supporting seats to each corner of the lower surface of the substrate, adjusting each supporting seat, adjusting the lower surface of each supporting seat to the same horizontal height, and finally placing the clamp;
s2: the supporting seat is taken down from the substrate, the spiral in each clamping claw is taken down, the clamping claws are unfolded and sleeved on a preset connecting component, the clamping claws are closed, and the clamping claws are fixed by bolts.
As a further scheme of the invention: and step three, before the communication part of the connecting groove and the drill steel body is sealed, the columnar anti-blocking component is embedded into each short fin along the water outlet groove, after the sealing is finished, the anti-blocking component is taken out of the water outlet groove, and finally 3-6 barb rods are welded at the opening of each water outlet groove.
As a further scheme of the invention: the clamp comprises a base plate, wherein a supporting seat is screwed on the lower surface of the base plate, a clamping claw is screwed on one side of the lower surface of the base plate, which is close to the supporting seat, a placing box is embedded and connected on the upper surface of the base plate, a plurality of clamping telescopic rods are fixedly connected on one side of the upper surface of the base plate, which is close to the placing box, two sliding rods are fixedly connected at two ends of the upper surface of the base plate, which is close to the rear side of the placing box, a cover plate is fixedly connected between the top ends of the sliding rods, a back plate is fixedly connected on the lower surface of the cover plate, sliding telescopic rods are fixedly connected at the upper end and the lower end of the back plate, a sliding chute is formed in the back plate, two groups of telescopic frames are slidably connected at the outer sides of the two groups of the sliding rods, and the inside equal threaded connection in both sides that is close to the horizontal plate of connecting plate has adjusting screw, the horizontal plate all extends to one side of spout, and is two sets of the output of slip telescopic link is respectively with two sets of horizontal plate fixed connection.
As a further scheme of the invention: the telescopic frame comprises a fixed pipe, a sliding plate is fixedly connected to one side of the fixed pipe, the sliding plate is sleeved on the outer side of the sliding rod, a sliding pipe is slidably connected to the inside of the fixed pipe, a spiral rod is rotatably connected to one end of the fixed pipe, one end of the spiral rod extends to the inside of the fixed pipe and is in threaded connection with the sliding pipe, and the fixed pipe and the sliding pipe are rectangular components.
As a further scheme of the invention: the adjusting screw rod is connected with the turning block towards the one end of grip block rotation, the inside of turning block rotates through the pivot and is connected with and supports the board, one side fixedly connected with circular arc board of grip block towards adjusting screw rod.
As a further scheme of the invention: one side of the arc plate, which faces the clamping plate, is provided with a plurality of inclined pulling plates, and the inclined pulling plates of the two groups of arc plates incline towards the respective telescopic frames on the near side.
As a further scheme of the invention: the equal fixedly connected with electric telescopic handle in both ends of placing the box inside, electric telescopic handle's top fixedly connected with layer board.
As a further scheme of the invention: the centre gripping telescopic link is provided with three groups, and three group's centre gripping telescopic links are in order to place the box and evenly distributed as the center.
The invention has the beneficial effects that:
1. the invention is characterized in that a plurality of long wing pieces are fixedly connected with the side surface of a drill steel body, short wing pieces are fixedly connected with one side of the side surface of the drill steel body close to the long wing pieces, both sides of the drill steel body are respectively provided with a containing groove, the interior of the drill steel body is in threaded connection with a water inlet pipe, the interior of the containing groove is in threaded connection with locking bolts, one ends of two groups of locking bolts are respectively abutted against both sides of the water inlet pipe, the interior of the water inlet pipe is provided with a water inlet groove, the bottom end of the water inlet pipe is provided with a water outlet hole, one side of the interior of the drill steel body close to the water inlet pipe is provided with a plurality of connecting grooves, and the interior of the short wing pieces is provided with a water outlet groove. The drill bit is connected with an external water supply system through the water inlet pipe, the water inlet pipe is convenient to produce and install and convenient to replace when damaged, and meanwhile the water inlet pipe can be reinforced through the locking bolt.
2. The PDC drill bit body is fixed by using the fixture in the second step, the thread groove, the connecting groove and the water outlet groove are respectively processed in the PDC drill bit body and the short wing pieces, the columnar anti-blocking component is embedded into each short wing piece along the water outlet groove before the connecting part of the connecting groove and the drill bit steel body is sealed, the anti-blocking component is taken out of the water outlet groove after the sealing is finished, and finally 3-6 barb rods are welded at the opening of each water outlet groove. The rubble or earth get into from the processing position, when sealed processing, can protect outlet trough and spread groove through the stifled component of column, prevent to block up it when sealed.
3. The fixture is provided with two installation modes, the fixture can be assembled according to actual needs, meanwhile, the fixture is matched with a machining process, a plurality of groups of clamping components are arranged, the position of the clamping components can be adjusted before machining, the machining parts can be exposed after the clamping components in the fixture are fixed, therefore, after the clamping components are clamped and fixed, a plurality of parts of a drill bit can be machined, machining efficiency is high, the fixture fixes the bottom of the drill bit through the placing box and the clamping telescopic rod, the middle part of the drill bit can be clamped and fixed through the clamping plate and the abutting plate, the selection modes are multiple, and the use is flexible and convenient.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a front view of a PDC bit of the present invention;
FIG. 2 is a cross-sectional view of a PDC bit of the present invention;
FIG. 3 is an enlarged view of a portion A of FIG. 2 in accordance with the present invention;
FIG. 4 is a bottom view of a PDC bit of the present invention;
FIG. 5 is a front view of the clamp of the present invention;
FIG. 6 is a partial side view of the telescoping mast and its attachment structure of the present invention;
FIG. 7 is a top sectional view of the telescopic frame and its connecting structure in the present invention;
FIG. 8 is a side sectional view of the placing case of the present invention;
fig. 9 is a schematic view of the distribution of the clamping telescopic rods in the invention.
In the figure: 1. a drill steel body; 2. a long fin; 3. a short fin; 4. a diamond compact; 5. a water inlet pipe; 6. a receiving groove; 7. locking the bolt; 8. a water outlet groove; 9. connecting grooves; 10. a water inlet groove; 11. a barb rod; 12. a water outlet hole; 13. a substrate; 14. a supporting seat; 15. clamping and grabbing; 16. placing the box; 17. clamping the telescopic rod; 18. a slide bar; 19. a back plate; 20. a chute; 21. sliding the telescopic rod; 22. a telescopic frame; 23. a clamping plate; 24. a cover plate; 25. a connecting plate; 26. a horizontal plate; 27. adjusting the screw rod; 28. rotating the block; 29. a resisting plate; 30. a circular arc plate; 31. an electric telescopic rod; 32. a support plate; 221. a fixed tube; 222. a sliding tube; 223. a screw rod; 224. a sliding plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-9, a PDC drill bit for grinding fin type oil gas drilling comprises a drill steel body 1, a plurality of long fins 2 fixedly connected to the side surface of the drill steel body 1, the intervals between the long fins 2 are the same, a short fin 3 fixedly connected to one side surface of the drill steel body 1 close to the long fins 2, a plurality of diamond composite sheets 4 fixedly connected to the short fin 3 and the side surfaces of the long fins 2, accommodating grooves 6 formed in both sides of the drill steel body 1, a water inlet pipe 5 in threaded connection with the inside of the drill steel body 1, locking bolts 7 in threaded connection with the inside of the accommodating grooves 6, one ends of the two sets of locking bolts 7 respectively abut against both sides of the water inlet pipe 5, a water inlet groove 10 formed in the inside of the water inlet pipe 5, a water outlet hole 12 formed in the bottom end of the water inlet pipe 5, a plurality of connecting grooves 9 formed in one side of the drill steel body 1 close to, the short fins 3 are internally provided with water outlet grooves 8, two ends of the connecting groove 9 are respectively communicated with the water inlet groove 10 and the water outlet groove 8, the water outlet groove 8 is internally and fixedly connected with a plurality of barb rods 11, and the barb rods 11 are arranged in the water outlet groove 8 in a staggered manner;
the machining process of the PDC drill bit comprises the following steps:
the method comprises the following steps: directly manufacturing a PDC bit body by adopting a steel body type bit body, and processing;
step two: fixing the PDC bit body by using a clamp, and respectively processing a thread groove, a connecting groove 9 and a water outlet groove 8 in the PDC bit body and the short fin 3;
step three: the water inlet pipe 5 is arranged in a thread groove in the drill steel body 1, the columnar anti-blocking component is embedded into each short fin 3 along the water outlet groove 8, after sealing is completed, the anti-blocking component is taken out from the water outlet groove 8, finally, 6 barb rods 11 are welded at the opening of each water outlet groove 8, and then the part, communicated with the drill steel body 1, of one end of the connecting groove 9 is sealed to obtain a finished product.
Referring to fig. 5-6, the clamp includes a base plate 13, a support seat 14 is screwed on the lower surface of the base plate 13, a clamping claw 15 is screwed on one side of the lower surface of the base plate 13 close to the support seat 14, a placing box 16 is embedded and connected on the upper surface of the base plate 13, a plurality of clamping telescopic rods 17 are fixedly connected on one side of the upper surface of the base plate 13 close to the placing box 16, slide rods 18 are fixedly connected on both ends of the upper surface of the base plate 13 close to the rear side of the placing box 16, a cover plate 24 is fixedly connected between the top ends of the slide rods 18, a back plate 19 is fixedly connected on the lower surface of the cover plate 24, sliding telescopic rods 21 are fixedly connected on both upper and lower ends of the back plate 19, a chute 20 is formed inside the back plate 19, two sets of telescopic frames 22 are slidably connected on the outer sides of the two sets of slide rods 18, the equal fixedly connected with horizontal plate 26 in rear surface of connecting plate 25, and the inside equal threaded connection in both sides that is close to horizontal plate 26 of connecting plate 25 has adjusting screw 27, and horizontal plate 26 all extends to one side of spout 20, and the output of two sets of slip telescopic links 21 respectively with two sets of horizontal plate 26 fixed connection.
Referring to fig. 7, the telescopic frame 22 includes a fixed tube 221, a sliding plate 224 is fixedly connected to one side of the fixed tube 221, the sliding plate 224 is sleeved outside the sliding rod 18, a sliding tube 222 is slidably connected to the inside of the fixed tube 221, a spiral rod 223 is rotatably connected to one end of the fixed tube 221, one end of the spiral rod 223 extends to the inside of the fixed tube 221 and is in threaded connection with the sliding tube 222, the fixed tube 221 and the sliding tube 222 are both rectangular members, a rotating block 28 is rotatably connected to one end of the adjusting screw 27 facing the clamping plate 23, a resisting plate 29 is rotatably connected to the inside of the rotating block 28 through a rotating shaft, an arc plate 30 is fixedly connected to one side of the clamping plate 23 facing the adjusting screw 27, a plurality of inclined pulling plates are arranged on one side of the arc plate 30 facing the clamping plate 23, the inclined pulling plates of the two sets of arc plates 30 are both inclined towards the telescopic frame 22 at the respective closer side, and the inclined pulling plates can increase, the arc plate 30 can be prevented from slipping at the time of clamping.
Referring to fig. 8, both ends of the interior of the placing box 16 are fixedly connected with an electric telescopic rod 31, the top end of the electric telescopic rod 31 is fixedly connected with a supporting plate 32, and when the supporting plate 32 moves, the horizontal height of the drill bit can be adjusted, so that the height of the exposed part of the drill bit can be conveniently adjusted.
Referring to fig. 9, three groups of holding telescopic rods 17 are provided, and the three groups of holding telescopic rods 17 are uniformly distributed around the placing box 16, so that the three groups of holding telescopic rods 17 improve the fixing quality of the device to the drill. And the clamping telescopic rod 17 is of an XTL100 type.
The use of the clip of the present invention includes the following embodiments:
example 1
The four groups of supporting seats 14 are respectively screwed at the corners of the lower surface of the substrate 13, the supporting seats 14 are adjusted, the lower surfaces of the supporting seats 14 are adjusted to the same horizontal height, and finally the clamp is placed;
placing the bottom of a drill steel body 1 downwards into a placing box 16, starting an electric telescopic rod 31 to drive a supporting plate 32 to vertically move, namely adjusting the horizontal height of the drill steel body 1 through the supporting plate 32, then starting three groups of clamping telescopic rods 17, enabling the output ends of the clamping telescopic rods 17 to move towards the inside of the placing box 16, fixing the bottom of the drill steel body 1 into the placing box 16, respectively starting two groups of sliding telescopic rods 21, driving a horizontal plate 26 to slide in a sliding groove 20 after the two groups of sliding telescopic rods 21 are started, driving telescopic frames 22 on two sides to slide along sliding rods 18 through a connecting plate 25 when the horizontal plate 26 moves, stopping the two groups of sliding telescopic rods 21 after adjustment, and fixing the telescopic frames 22;
the screw rods 223 on two sides of one group of the telescopic frames 22 are synchronously rotated, the screw rods 223 are rotated to drive the sliding tube 222 to slide along the fixed tube 221, the sliding tube 222 can synchronously drive the clamping plate 23 and the arc plate 30 to move when sliding, the arc plate 30 can be tightly attached to one side of the drill steel body 1 and clamp the drill steel body 1, the adjusting screw 27 is rotated to abut the abutting plate 29 on the other side of the drill steel body 1, the side of the abutting plate 29 abuts against the side of the drill steel body 1 and then rotates relative to the adjusting screw 27, the abutting plate 29 rotates relative to the adjusting screw 27 through the rotating block 28 along with the movement of the adjusting screw 27, the steps are repeated, and the other group of the telescopic frames 22 and the adjusting screw 27 are rotated and adjusted, so that two ends of the drill steel body 1 can be fixed.
Example 2
Taking the supporting base 14 off the substrate 13, taking the screw in each clamping claw 15 off, unfolding the clamping claws 15 and sleeving the clamping claws 15 on a preset connecting member, wherein the preset connecting member is a horizontal rod on the processing device, closing the clamping claws 15, and fixing the clamping claws 15 by using bolts;
placing the bottom of a drill steel body 1 downwards into a placing box 16, starting an electric telescopic rod 31 to drive a supporting plate 32 to vertically move, namely adjusting the horizontal height of the drill steel body 1 through the supporting plate 32, then starting three groups of clamping telescopic rods 17, enabling the output ends of the clamping telescopic rods 17 to move towards the inside of the placing box 16, fixing the bottom of the drill steel body 1 into the placing box 16, respectively starting two groups of sliding telescopic rods 21, driving a horizontal plate 26 to slide in a sliding groove 20 after the two groups of sliding telescopic rods 21 are started, driving telescopic frames 22 on two sides to slide along sliding rods 18 through a connecting plate 25 when the horizontal plate 26 moves, stopping the two groups of sliding telescopic rods 21 after adjustment, and fixing the telescopic frames 22;
the screw rods 223 on two sides of one group of the telescopic frames 22 are synchronously rotated, the screw rods 223 are rotated to drive the sliding tube 222 to slide along the fixed tube 221, the sliding tube 222 can synchronously drive the clamping plate 23 and the arc plate 30 to move when sliding, the arc plate 30 can be tightly attached to one side of the drill steel body 1 and clamp the drill steel body 1, the adjusting screw 27 is rotated to abut the abutting plate 29 on the other side of the drill steel body 1, the side of the abutting plate 29 abuts against the side of the drill steel body 1 and then rotates relative to the adjusting screw 27, the abutting plate 29 rotates relative to the adjusting screw 27 through the rotating block 28 along with the movement of the adjusting screw 27, the steps are repeated, and the other group of the telescopic frames 22 and the adjusting screw 27 are rotated and adjusted, so that two ends of the drill steel body 1 can be fixed.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.
Claims (8)
1. The PDC drill bit for grinding fin type oil gas drilling comprises a drill bit steel body (1), wherein a plurality of long fins (2) are fixedly connected to the side face of the drill bit steel body (1), the intervals among the long fins (2) are the same, the PDC drill bit is characterized in that short fins (3) are fixedly connected to one side, close to the long fins (2), of the side face of the drill bit steel body (1), a plurality of diamond composite sheets (4) are fixedly connected to the side faces of the short fins (3) and the long fins (2), accommodating grooves (6) are formed in two sides of the drill bit steel body (1), a water inlet pipe (5) is connected to the inner portion of the drill bit steel body (1) in a threaded mode, locking bolts (7) are connected to the inner portion of the accommodating grooves (6) in a threaded mode, one ends of the two groups of the locking bolts (7) abut against two sides of the water inlet pipe (5) respectively, a water inlet groove (10), a water outlet hole (12) is formed in the bottom end of the water inlet pipe (5), a plurality of connecting grooves (9) are formed in one side, close to the water inlet pipe (5), of the interior of the drill steel body (1), water outlet grooves (8) are formed in the interior of the short fin (3), and two ends of each connecting groove (9) are respectively communicated with the water inlet groove (10) and the water outlet grooves (8);
the machining process of the PDC drill bit comprises the following steps:
the method comprises the following steps: manufacturing a PDC bit body by adopting a method known in the prior art;
step two: fixing the PDC bit body by using a fixture, and respectively machining a thread groove, a connecting groove (9) and a water outlet groove (8) in the PDC bit body and the short fin (3);
the use method of the clamp comprises the following steps: the bottom of the drill steel body (1) is downwards placed in the placing box (16), the electric telescopic rod (31) is started to drive the supporting plate (32) to vertically move, the horizontal height of the drill steel body (1) can be adjusted through the supporting plate (32), then three groups of clamping telescopic rods (17) are started, the output end of the clamping telescopic rod (17) moves towards the inside of the placing box (16), the bottom of the drill steel body (1) is fixed in the placing box (16), then two groups of sliding telescopic rods (21) are respectively started, and after the two groups of sliding telescopic rods (21) are started, the horizontal plate (26) is driven to slide in the sliding groove (20), when the horizontal plate (26) moves, the telescopic frames (22) on the two sides are driven to slide along the slide rod (18) through the connecting plate (25), and after adjustment is completed, the two groups of sliding telescopic rods (21) are stopped, so that the telescopic frames (22) are fixed;
the screw rods (223) on two sides in the group of telescopic frames (22) are synchronously rotated, the screw rods (223) drive the sliding tube (222) to slide along the fixed tube (221) after rotating, the clamping plate (23) and the arc plate (30) are synchronously driven to move when the sliding tube (222) slides, the arc plate (30) is tightly attached to one side of the drill bit steel body (1) and clamps the drill bit steel body, the adjusting screw rod (27) is rotated to abut the abutting plate (29) on the other side of the drill bit steel body (1), the side surface of the abutting plate (29) and the adjusting screw rod (27) rotate relatively after abutting against the side surface of the drill bit steel body (1), and along with the movement of the adjusting screw (27), the abutting plate (29) and the adjusting screw (27) relatively rotate through the rotating block (28), the steps are repeated, and the other group of the telescopic frames (22) and the adjusting screw (27) are rotationally adjusted, so that the two ends of the drill steel body (1) can be fixed;
step three: the water inlet pipe (5) is arranged inside a thread groove in the drill steel body (1), and then the part where one end of the connecting groove (9) is communicated with the drill steel body (1) is sealed to obtain a finished product.
2. A PDC bit for grinding an airfoil type oil and gas drilling according to claim 1, wherein the substrate (13) in the jig comprises the following mounting method:
s1: the four groups of supporting seats (14) are respectively screwed to the corners of the lower surface of the substrate (13), the supporting seats (14) are adjusted, the lower surfaces of the supporting seats (14) are adjusted to the same horizontal height, and finally the clamp is placed;
s2: the supporting base (14) is taken down from the base plate (13), the spiral in each clamping claw (15) is taken down, the clamping claws (15) are unfolded and sleeved on a preset connecting component, the clamping claws (15) are closed, and the clamping claws (15) are fixed by bolts.
3. The PDC drill bit for grinding the fin type oil and gas drilling according to claim 1, wherein in the third step, before the connecting part of the connecting groove (9) and the drill bit steel body (1) is sealed, a columnar anti-blocking member is embedded into each short fin (3) along the water outlet groove (8), after the sealing is completed, the anti-blocking member is taken out of the water outlet groove (8), and finally 3-6 barb rods (11) are welded at the opening of each water outlet groove (8).
4. The PDC drill bit for grinding the fin type oil and gas drilling as claimed in claim 1, wherein the fixture comprises a base plate (13), a supporting seat (14) is screwed on the lower surface of the base plate (13), a clamping claw (15) is screwed on one side of the lower surface of the base plate (13) close to the supporting seat (14), a placing box (16) is embedded and connected on the upper surface of the base plate (13), a plurality of clamping telescopic rods (17) are fixedly connected on one side of the upper surface of the base plate (13) close to the placing box (16), sliding rods (18) are fixedly connected at two ends of the upper surface of the base plate (13) close to the rear side of the placing box (16), a cover plate (24) is fixedly connected between the top ends of the sliding rods (18), a back plate (19) is fixedly connected on the lower surface of the cover plate (24), and sliding telescopic rods (21) are fixedly connected at two upper and, and spout (20) have been seted up to the inside of backplate (19), and are two sets of equal sliding connection in the outside of slide bar (18) has two sets of expansion brackets (22), front side fixedly connected with grip block (23) between expansion bracket (22), and rear side fixedly connected with connecting plate (25) between expansion bracket (22), the equal fixedly connected with horizontal plate (26) in rear surface of connecting plate (25), and the equal threaded connection in both sides that is close to horizontal plate (26) inside connecting plate (25) has adjusting screw (27), horizontal plate (26) all extend to one side of spout (20), and are two sets of the output of sliding telescopic pole (21) is respectively with two sets of horizontal plate (26) fixed connection.
5. The PDC drill bit for grinding fin type oil and gas drilling according to claim 4, wherein the expansion bracket (22) comprises a fixed pipe (221), a sliding plate (224) is fixedly connected to one side of the fixed pipe (221), the sliding plate (224) is sleeved on the outer side of the sliding rod (18), a sliding pipe (222) is slidably connected to the inside of the fixed pipe (221), a spiral rod (223) is rotatably connected to one end of the fixed pipe (221), one end of the spiral rod (223) extends to the inside of the fixed pipe (221) and is in threaded connection with the sliding pipe (222), and the fixed pipe (221) and the sliding pipe (222) are both rectangular components.
6. A PDC drill bit for grinding fin type oil and gas drilling according to claim 4, characterized in that a rotating block (28) is rotatably connected to one end of the adjusting screw rod (27) facing the clamping plate (23), a resisting plate (29) is rotatably connected to the inside of the rotating block (28) through a rotating shaft, and a circular arc plate (30) is fixedly connected to one side of the clamping plate (23) facing the adjusting screw rod (27).
7. A PDC drill bit for grinding fin type oil and gas drilling according to claim 4, characterized in that an electric telescopic rod (31) is fixedly connected to both ends of the interior of the placing box (16), and a supporting plate (32) is fixedly connected to the top end of the electric telescopic rod (31).
8. A PDC drill bit for grinding fin type oil and gas drilling according to claim 4, characterized in that a plurality of barb rods (11) are fixedly connected to the inside of the water outlet groove (8), and the barb rods (11) are staggered in the inside of the water outlet groove (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011256965.9A CN112096296B (en) | 2020-11-12 | 2020-11-12 | PDC drill bit for grinding fin type oil gas drilling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011256965.9A CN112096296B (en) | 2020-11-12 | 2020-11-12 | PDC drill bit for grinding fin type oil gas drilling |
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| CN112096296A true CN112096296A (en) | 2020-12-18 |
| CN112096296B CN112096296B (en) | 2021-03-02 |
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| CN202011256965.9A Active CN112096296B (en) | 2020-11-12 | 2020-11-12 | PDC drill bit for grinding fin type oil gas drilling |
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| CN (1) | CN112096296B (en) |
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