CN217354257U - Polycrystalline diamond compact bit with staggered blades - Google Patents

Abstract

The utility model belongs to the technical field of compound piece drill bit, and a polycrystalline diamond compact piece drill bit of alternating expression wing is disclosed, including the drill bit body, the drill bit body is including rotation axis and blade, the connecting hole has been seted up to the inside of rotation axis, the quantity of blade is three, and is three the cutting edge has been seted up to the left and right sides at blade top, and is three the bottom fixedly connected with connecting axle of blade. The utility model discloses a set up blade and cutting edge, at first can be convenient for the staff through the location axle and calibrate whole and the rotating equipment of drill bit body fast, and then can make its stable connection under the cooperation of connecting hole and locating hole, and can be convenient for fix the equipment with four blades through the connecting axle, and then make the cutting edge of every blade both sides can staggered arrangement, the whole top of drill bit is direct when can avoiding drilling and increases the condition of hindrance power with the barrier contact, thereby reach the effect of accelerating drilling efficiency.

Description

Polycrystalline diamond compact bit with staggered blades

Technical Field

The utility model belongs to the technical field of compound piece drill bit, specifically a polycrystalline diamond compact piece drill bit of alternating expression wing.

Background

The polycrystalline diamond compact bit comprises a compact bit for geological exploration, is mainly used for geological exploration and exploration, is suitable for soft to medium hard rock stratums, and can be applied to rock stratums with ten-grade hardness; the composite bit for coal field drilling is mainly used for drilling and excavating coal layers on coal mines, generally, rock layers of the coal fields are relatively soft, so that the composite bit is widely applied to anchor rod bits, three-wing bits and the like; the composite bit for petroleum exploration is mainly applied to drilling and production of oil and gas fields, and the composite bit for the oil fields is the highest in manufacturing cost and the highest in production requirement in all composite bits at present.

At present, the variety of drill bits is many, in order to adapt to different operational environment, the shape structure and the material of drill bit all have the difference, and although current drill bit can almost satisfy the demand of all drilling work, because the cutting edge of current drill bit blade tip is almost all at same height, will make the dynamics of hindering reach the maximum value in the twinkling of an eye after the drill bit tip contacts the barrier like this when drilling, and then slow down the drill bit rotation rate, but because the rotation rate of motor does not change, will lead to the easy fracture of drill bit and motor junction like this, and increased the wearing and tearing speed of whole drill bits, consequently need improve it.

Meanwhile, only the end of the drill bit needs to be in contact with an obstacle during the drilling process of the drill bit, so the part damaged firstly at each time is mostly the front end part of the drill bit, and the abrasion speed of the abrasion piece of the polycrystalline diamond compact fixedly welded at the front end of the drill bit is higher, so the abrasion piece of the polycrystalline diamond compact needs to be replaced regularly, but the rear end of the drill bit usually cannot reach the maximum service life at the moment, but the intact part of the rear end of the drill bit caused by the replacement of the existing drill bit is abandoned together with the front end of the drill bit and the abrasion piece of the polycrystalline diamond compact, and the front end, the rear end and the polycrystalline diamond compact need to be re-processed during the production of a new drill bit every time, so the production cost of the drill bit is increased, and the improvement of the drill bit is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above problem, the utility model provides a polycrystalline diamond compact drill bit of alternating expression wing has efficient and advantage with low costs.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a polycrystalline diamond compact bit of alternating expression blade, includes the drill bit body, the drill bit body is including rotation axis and blade, the connecting hole has been seted up to the inside of rotation axis, the quantity of blade is three, and is three the cutting edge has been seted up to the left and right sides at blade top, and is three the bottom fixedly connected with connecting axle of blade, the bottom of connecting axle and the top swing joint of rotation axis, the bottom fixedly connected with location axle of rotation axis, the locating hole has been seted up to the inside of location axle, four the cutting edge of blade both sides is higher than the right by the left side, therefore the cutting edge layer of four blades of circulation fixed connection and both sides is staggered arrangement from top to bottom, can make the drill bit contact the barrier in proper order like this to improve drilling rate.

As a preferred technical scheme of the utility model, the rectangular channel has been seted up at the top of rotation axis, the rectangular block has been cup jointed in the inside activity of rectangular channel, the spout has been seted up to the bottom of rectangular block, the threaded rod has been cup jointed to the inside of rectangular block, the surface screw thread of threaded rod has cup jointed the locating piece, the rotatory piece of both ends fixedly connected with of threaded rod, the joint groove has been seted up to the other end of rotatory piece, through the locating piece that sets up, can make things convenient for the staff to be connected rectangular block and rotation axis, can assemble the whole rotation axis of blade fixedly with whole to reduce the drill bit and damage and the part of giving up after can't continuing to use.

As a preferred technical scheme of the utility model, the connecting holes are through holes, and the inner walls of the connecting holes are smooth; the diameter of the outer surface of the positioning shaft is smaller than that of the outer surface of the rotating shaft, the positioning hole is a through hole, the inner wall of the positioning hole is smooth, due to the arrangement of the connecting hole and the positioning hole, a worker can be conveniently and stably connected with the whole blade and the rotating equipment through the rotating shaft, and the calibration efficiency before connection can be improved through the positioning shaft.

As a preferred technical scheme of the utility model, the top of rectangular block run through the rectangular channel and extend to the rotation axis the top and with the bottom fixed connection of connecting axle, through the rectangular block that sets up, can be convenient for the staff carries out fast assembly with connecting axle and rotation axis and connects fixedly.

As a preferred technical scheme of the utility model, the quantity of locating piece is two, two the surface of locating piece and the equal activity joint of inner wall of rotation axis and rectangular block, and the size of threaded rod, spout and two locating pieces increases in proper order, because the setting of spout, can ensure that the bottom of rectangular block can cross the threaded rod and remove to the bottom with the rectangular channel inner chamber to insert the rectangular channel inside with the rectangular channel completely, also ensure during the time that the locating piece can be stably connected with the rectangular channel.

As a preferred technical scheme of the utility model, state the quantity in rotatory piece and joint groove and be two, two the surface of rotatory piece all cup joints with the inner wall activity of rotation axis, through the rotatory piece that sets up, can restrict the position of threaded rod to ensure that two locating pieces can be stably connected with the rectangular block, and then be convenient for the staff through the joint groove and rotate the threaded rod.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a set up the rotation axis, the blade, cutting edge and location axle, at first can be convenient for the staff through the location axle and calibrate whole and the rotating equipment of drill bit body fast, and then can make its stable connection under the cooperation of connecting hole and locating hole, and can be convenient for fix the equipment with four blades through the connecting axle, and then make the cutting edge of every blade both sides can staggered arrangement, the whole top of drill bit is direct and the barrier contact increases the condition of hindrance power when can avoiding drilling, thereby reach the effect of accelerating drilling efficiency.

2. The utility model discloses a set up the rectangular block, the locating piece, threaded rod and rectangular channel, at first can be convenient for the staff to carry out the accuracy with the rotation axis through the connecting axle fast under the cooperation of rectangular block and rectangular channel and be connected, then make the rectangular block insert the inside to the rectangular channel completely under the cooperation of spout, and make the threaded rod be located the middle part of rectangular block, then can make the inside that the face in opposite directions of two locating pieces removed gradually to the rectangular block under the restriction of rotation axis and rectangular block to the locating piece through joint groove and rotatory piece rotatory threaded rod, can carry out fixed connection with rectangular block and rotation axis, thereby reach the effect of changing drill bit front end and polycrystalline diamond compact piece part fast.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic side sectional view of the present invention;

FIG. 4 is a schematic front sectional view of the present invention;

fig. 5 is a schematic view of a local structure of the knife edge of the present invention.

In the figure: 1. a drill bit body; 2. a rotating shaft; 3. a blade; 4. a blade; 5. a connecting shaft; 6. connecting holes; 7. positioning the shaft; 8. positioning holes; 9. a rectangular block; 10. a chute; 11. positioning blocks; 12. a threaded rod; 13. a rectangular groove; 14. rotating the block; 15. a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 5, the utility model provides a polycrystalline diamond compact piece drill bit of alternating expression wing, including drill bit body 1, drill bit body 1 is including rotation axis 2 and blade 3, connecting hole 6 has been seted up to rotation axis 2's inside, the quantity of blade 3 is three, cutting edge 4 has been seted up to the left and right sides at 3 tops of three blade, the bottom fixedly connected with connecting axle 5 of three blade 3, the bottom of connecting axle 5 and rotation axis 2's top swing joint, rotation axis 2's bottom fixedly connected with location axle 7, locating hole 8 has been seted up to the inside of location axle 7, the cutting edge 4 of four 3 both sides of blade is higher than the right by the left side, consequently, the cutting edge 4 layers staggered arrangement from top to bottom of four blades 3 and the both sides of circulation fixed connection, so can make the drill bit contact the barrier in proper order, thereby improve drilling rate.

Wherein, rectangular channel 13 has been seted up at the top of rotation axis 2, rectangular block 9 has been cup jointed in the inside activity of rectangular channel 13, spout 10 has been seted up to the bottom of rectangular block 9, threaded rod 12 has been cup jointed in the inside of rectangular block 9, threaded rod 12's surface screw thread has cup jointed locating piece 11, threaded rod 12's the rotatory piece 14 of both ends fixedly connected with, joint groove 15 has been seted up to the other end of rotatory piece 14, locating piece 11 through setting up, can make things convenient for the staff to be connected rectangular block 9 and rotation axis 2, can assemble 3 wholly with rotation axis 2 fixedly with the blade, thereby reduce the drill bit and damage and the part of being given up after unable continuation of use.

Wherein, the connecting hole 6 is a through hole, and the inner wall of the connecting hole 6 is smooth; the diameter of 7 external surfaces of location axle is less than the diameter of the surface of rotation axis 2, and locating hole 8 is the through hole, and the inner wall of locating hole 8 is smooth, because the setting of connecting hole 6 and locating hole 8, can be convenient for the staff through rotation axis 2 with the whole stable connection with rotary equipment of blade 3, and through 7 calibration efficiency before the location axle then can improve the connection.

Wherein, the top of rectangular block 9 runs through rectangular groove 13 and extends to the top of rotation axis 2 and with the bottom fixed connection of connecting axle 5, through the rectangular block 9 that sets up, can be convenient for the staff with connecting axle 5 and rotation axis 2 carry out fast assembly and connect fixedly.

Wherein, the quantity of locating piece 11 is two, the equal activity joint of the surface of two locating pieces 11 and the inner wall of rotation axis 2 and rectangular block 9, and threaded rod 12, spout 10 and two locating piece 11's size increases in proper order, because the setting of spout 10, can ensure that the bottom of rectangular block 9 can cross threaded rod 12 and remove to the bottom with rectangular channel 13 inner chamber, thereby insert rectangular block 9 inside rectangular channel 13 completely, also ensure during the time that locating piece 11 can be stably connected with rectangular block 9.

Wherein, the quantity of rotatory piece 14 and joint groove 15 is two, and the surface of two rotatory pieces 14 all cup joints with the inner wall activity of rotation axis 2, through the rotatory piece 14 that sets up, can restrict the position of threaded rod 12 to ensure that two locating pieces 11 can be stably connected with rectangular block 9, and then be convenient for the staff through joint groove 15 and rotate threaded rod 12.

The utility model discloses a theory of operation and use flow:

firstly, the rectangular block 9 is inserted into the rectangular groove 13, namely the threaded rod 12 can be moved into the rectangular block 9 under the matching of the sliding groove 10, meanwhile, the rectangular block 9 can be completely moved into the rectangular groove 13, then the threaded rod 12 can be driven to rotate by rotating the clamping groove 15 under the matching of the rotating block 14, the two positioning blocks 11 can move oppositely under the restriction of the rotating shaft 2 and the rectangular block 9 on the two positioning blocks 11, the rectangular block 9 can be locked in the rectangular groove 13 by locking the rectangular block 9, then the fixed assembly of the blade 3 and the rotating shaft 2 is completed through the connecting shaft 5, then the positioning shaft 7 is connected with the rotating equipment through the positioning hole 8, and the positioning shaft 7 is fixed through the connecting hole 6; then, the rotating device is started, the four blades 3 can be driven to rotate by the positioning shaft 7, the rotating shaft 2, the rectangular block 9 and the connecting shaft 5 in sequence, and the blades 4 at the ends of the four blades 3 can contact with the obstacle in sequence by the rotation of the four blades 3.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a polycrystalline diamond compact drill bit of alternating expression blade, includes drill bit body (1), its characterized in that: drill bit body (1) is including rotation axis (2) and blade (3), connecting hole (6) have been seted up to the inside of rotation axis (2), the quantity of blade (3) is three, and is three cutting edge (4), three have been seted up to the left and right sides at blade (3) top the bottom fixedly connected with connecting axle (5) of blade (3), the bottom of connecting axle (5) and the top swing joint of rotation axis (2), the bottom fixedly connected with location axle (7) of rotation axis (2), locating hole (8) have been seted up to the inside of location axle (7).

2. The polycrystalline diamond compact bit with staggered blades of claim 1, wherein: rectangular channel (13) have been seted up at the top of rotation axis (2), rectangular block (9) have been cup jointed in the inside activity of rectangular channel (13), spout (10) have been seted up to the bottom of rectangular block (9), threaded rod (12) have been cup jointed to the inside of rectangular block (9), locating piece (11) have been cup jointed to the surface screw thread of threaded rod (12), the both ends fixedly connected with of threaded rod (12) is rotatory piece (14), joint groove (15) have been seted up to the other end of rotatory piece (14).

3. The polycrystalline diamond compact bit with staggered blades of claim 1, wherein: the connecting hole (6) is a through hole, the inner wall of the connecting hole (6) is smooth, the diameter of the outer surface of the positioning shaft (7) is smaller than that of the outer surface of the rotating shaft (2), the positioning hole (8) is a through hole, and the inner wall of the positioning hole (8) is smooth.

4. The polycrystalline diamond compact bit with staggered blades of claim 2, wherein: the top of the rectangular block (9) penetrates through the rectangular groove (13), extends to the upper part of the rotating shaft (2) and is fixedly connected with the bottom of the connecting shaft (5).

5. The polycrystalline diamond compact bit with staggered blades of claim 2, wherein: the quantity of locating piece (11) is two, two the equal activity joint of inner wall of the surface of locating piece (11) and rotation axis (2) and rectangular block (9), and the size of threaded rod (12), spout (10) and two locating pieces (11) increases in proper order.

6. The polycrystalline diamond compact bit with staggered blades of claim 2, wherein: the quantity of rotatory piece (14) and joint groove (15) is two, two the surface of rotatory piece (14) all cup joints with the inner wall activity of rotation axis (2).

Images