CN211777210U

CN211777210U - Combined drill bit for general equipment

Info

Publication number: CN211777210U
Application number: CN201922329345.2U
Authority: CN
Inventors: 张夏鸣
Original assignee: Wuxi Sengen Precision Machinery Co ltd
Current assignee: Wuxi Sengen Precision Machinery Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-10-27
Anticipated expiration: 2029-12-23

Abstract

The utility model discloses a combination formula bore bit for general equipment relates to bore bit technical field for general equipment, and along with boring the depth of digging increase for solving current bore bit, the resistance grow that leads to bore bit during operation can increase the wearing and tearing of bore bit for the efficiency that the bore bit bored and digs is not good, can not satisfy the problem of user demand. The drilling tool bit comprises a main drilling bit body, auxiliary expansion bit bodies, auxiliary drill bit connecting sleeves and drill bit connecting sleeves, wherein the auxiliary expansion bit bodies are arranged outside the main drilling bit body, sliding grooves are formed in the main drilling bit body and the auxiliary expansion bit bodies respectively, a drilling alloy cutter is arranged above the main drilling bit body, a locking nut C is arranged between the drilling alloy cutter and the main drilling bit body, an expansion alloy cutter is arranged above the auxiliary expansion bit bodies, a locking nut C is arranged between the expansion alloy cutter and the auxiliary expansion bit bodies, locking nuts A are arranged outside the two auxiliary expansion bit bodies, the drill bit connecting sleeves are arranged outside the two auxiliary expansion bit bodies, and a locking nut B is arranged outside the two drill bit connecting sleeves.

Description

Combined drill bit for general equipment

Technical Field

The utility model relates to a bore bit technical field for the general equipment specifically is a combination formula bore bit for general equipment.

Background

The drill bit body is made of high-quality imported steel, the tool bit is made of special alloy through a special processing and welding process, and the drill bit body is widely used in the industries of geology, metallurgy, coal, stone, railways, traffic, buildings and tunnel lamps as an important excavating tool. The drill bit comprises a straight drill bit, a cross drill bit, an X-shaped drill bit and a spherical tooth drill bit according to different application ranges; the straight drill bit is suitable for drilling a rock stratum with low hardness by a light rock drill and is convenient to grind; the cross drill bit and the X-shaped drill bit are suitable for drilling a fractured rock stratum and a rock stratum with strong corrosivity under the condition of a rock drill with large impact power, and have strong radial corrosion resistance; under the condition of a rock drill with larger impact power, the spherical tooth type drill bit has stronger applicability than a sheet soil block drill bit, high rock drilling speed and long service life, and the drilled hole pattern is more circular and the like.

At present, when the drill bit is used for drilling, the density of a rock stratum is increased along with the increase of the drilling depth, the resistance applied to the drill bit during drilling is increased along with the increase of the drilling depth, the abrasion consumption of the drill bit is increased, the drilling efficiency of the drill bit is reduced, the drill bit is replaced more frequently, the cost is increased, and the use requirement cannot be met. Therefore, the market is urgently in need of a combined drill bit for general equipment to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a combination formula bore bit for general equipment to it digs the degree of depth along with boring to put forward current bore bit among the solution above-mentioned background art and increases, leads to the resistance grow of bore bit during operation, can increase the wearing and tearing of bore bit, makes the efficiency that the bore bit bored and digs not good, can not satisfy user demand's problem.

In order to achieve the above object, the utility model provides a following technical scheme: a combined drill bit for general equipment comprises a main drilling bit body, wherein an auxiliary expansion bit body is arranged outside the main drilling bit body, two auxiliary expansion bit bodies are arranged and are symmetrically arranged relative to the main drilling bit body, sliding grooves are formed in the main drilling bit body and the auxiliary expansion bit bodies, a drilling alloy cutter is arranged above the main drilling bit body, one end of the drilling alloy cutter extends into the sliding grooves, four locking nuts are arranged between the drilling alloy cutter and the main drilling bit body, one ends of the four locking nuts penetrate through the drilling alloy cutter and extend into the main drilling bit body, four expansion alloy cutters are arranged above the auxiliary expansion bit body, one ends of the four expansion alloy cutters extend to the inner wall of the sliding grooves, a locking nut C is arranged between the expansion alloy cutter and the auxiliary expansion bit bodies, one end of the locking nut C penetrates through the expansion alloy cutter and extends to the inside of the auxiliary expansion bit bodies, locking nuts A are arranged on the outer portions of the two auxiliary expansion bit bodies, one end of each locking nut A penetrates through the auxiliary expansion bit bodies and extends to the inside of the main drilling bit body, drill bit connecting sleeves are arranged on the outer portions of the two auxiliary expansion bit bodies and are attached to the auxiliary expansion bit bodies, locking nuts B are arranged on the outer portions of the two drill bit connecting sleeves, and one end of each locking nut B penetrates through the drill bit connecting sleeves and the auxiliary expansion bit bodies and extends to the inside of the main drilling bit body.

Preferably, a water injection pipe is arranged inside the main drilling bit body, and one end of the water injection pipe penetrates through the main drilling bit body and extends to the outside of the main drilling bit body.

Preferably, the inside of water injection pipe is provided with prevents stifled net, and prevents that stifled net is connected with the inner wall laminating of water injection pipe.

Preferably, a flute is arranged above each of the two auxiliary expanding bit bodies, and one end of the flute extends into the auxiliary expanding bit body.

Preferably, the main drilling bit body and the auxiliary expanding bit body are both internally provided with a convex block and a groove, and the sizes of the convex block and the groove are matched.

Preferably, the drill bit connecting sleeve is externally provided with a connecting thread, the connecting thread is attached to the drill bit connecting sleeve, and the drill bit connecting sleeve is internally provided with a hexagonal anastomosis groove.

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

1. the utility model can spray water to the contact position of the drill bit and the drilling rock stratum through the water injection pipe when the drill bit drills through the arrangement of the water injection pipe and the anti-blocking net, thereby achieving the effect of wetting the rock stratum and facilitating the drilling and digging of the drill bit; the anti-blocking net can effectively prevent soil generated during water adding drilling from being accumulated at the water outlet of the water injection pipe, so that the circulation of the water injection pipe is not smooth, and the drilling difficulty is increased. The problem of can reduce drill bit and stratum frictional resistance through adding water and wetting the stratum, be convenient for the drill bit bores the processing, and can avoid the delivery port to block up is solved.

2. The utility model has the advantages that through the arrangement of the auxiliary expansion bit body and the chip groove, the auxiliary expansion bit body can increase the contact surface between the drill bit and the rock stratum, and has an angle difference with the main drill bit, so that the drilling resistance with the rock stratum is reduced, and the drilling is convenient; the chip groove can guide the soil generated by drilling, and the soil can not be accumulated on the auxiliary expanding bit body, so that the auxiliary expanding bit body is not in good contact with the rock stratum, and the drilling efficiency is not good. The problem of can come to accelerate the speed of digging when adjusting to dig the size is solved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is a connection diagram of the main drilling bit body and the auxiliary expanding bit body of the present invention;

fig. 4 is a bottom view of the present invention.

In the figure: 1. a main drilling bit body; 2. drilling an alloy cutter; 3. a water injection pipe; 4. anti-blocking net; 5. a chute; 6. a secondary expansion bit body; 7. expanding the alloy knife; 8. locking a nut A; 9. a drill bit connecting sleeve; 10. locking the nut B; 11. connecting threads; 12. locking a nut C; 13. a bump; 14. a groove; 15. a hexagonal anastomosis groove; 16. a chip 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.

Referring to fig. 1-4, the present invention provides an embodiment: a combined drill bit for general equipment comprises a main drilling bit body 1, wherein an auxiliary expansion bit body 6 is arranged outside the main drilling bit body 1, two auxiliary expansion bit bodies 6 are arranged, the two auxiliary expansion bit bodies 6 are symmetrically arranged relative to the main drilling bit body 1, the drilling size can be adjusted by the auxiliary expansion bit bodies 6, sliding grooves 5 are formed in the main drilling bit body 1 and the auxiliary expansion bit bodies 6, a drilling alloy cutter 2 is arranged above the main drilling bit body 1, one end of the drilling alloy cutter 2 extends into the sliding grooves 5, locking nuts 12 are arranged between the drilling alloy cutter 2 and the main drilling bit body 1, the number of the locking nuts 12 is four, one ends of the four locking nuts 12 penetrate through the drilling alloy cutter 2 and extend into the main drilling bit body 1, the locking nuts 12 can fix the drilling alloy cutter 2, the expansion alloy cutter 7 is arranged above the auxiliary expansion bit body 6, four expanding alloy knives 7 are arranged, one ends of the four expanding alloy knives 7 extend to the inner wall of the sliding chute 5, a locking nut 12 is arranged between the expanding alloy knife 7 and the auxiliary expanding drill bit body 6, one end of the locking nut C12 penetrates through the expanding alloy cutter 7 and extends to the inside of the auxiliary expanding drill bit bodies 6, the locking nut A8 is arranged outside the two auxiliary expanding drill bit bodies 6, one end of the locking nut A8 penetrates through the auxiliary expanding drill bit bodies 6 and extends into the main drilling drill bit body 1, drill bit connecting sleeves 9 are arranged outside the two auxiliary expanding drill bit bodies 6, two drill bit connecting sleeves 9 are arranged, and the drill bit connecting sleeves 9 are jointed with the auxiliary expanding drill bit bodies 6, the locking nuts B10 are arranged outside the two drill bit connecting sleeves 9, and one end of the locking nut B10 penetrates through the drill bit connecting sleeve 9 and the auxiliary expanding drill bit body 6 and extends to the interior of the main drilling drill bit body 1.

Further, the inside of main drilling drill bit body 1 is provided with water injection pipe 3, and the one end of water injection pipe 3 runs through main drilling drill bit body 1 and extends to the outside of main drilling drill bit body 1. Water may be directed to the formation through the water injection pipe 3.

Further, the inside of water injection pipe 3 is provided with prevents stifled net 4, and prevents stifled net 4 and water injection pipe 3's inner wall laminating and be connected. The water injection pipe 3 can be prevented from being blocked by soil through the anti-blocking net 4, and water outlet is influenced.

Further, a flute 16 is provided above both the two sub expansion bit bodies 6, and one end of the flute 16 extends to the inside of the sub expansion bit bodies 6. The cuttings drilled are quickly directed by the flutes 16 and do not accumulate on the secondary expansion bit body 6.

Further, the main drilling bit body 1 and the auxiliary expansion bit body 6 are both provided with a projection 13 and a groove 14 inside, and the projection 13 and the groove 14 are matched in size. The main drilling bit body 1 and the auxiliary expansion bit body 6 can be mutually limited by the convex blocks 13 and the concave grooves 14, and the stability is increased.

Further, the outside of the drill bit connecting sleeve 9 is provided with a connecting thread 11, the connecting thread 11 is attached to the drill bit connecting sleeve 9, and the inside of the drill bit connecting sleeve 9 is provided with a hexagonal engaging groove 15. The drill bit is conveniently connected with power equipment through the connecting thread 11 and the hexagonal matching groove 15.

The working principle is as follows: when the drill bit is used, the auxiliary expansion drill bit body 6 with a proper size is selected to be combined with the main drilling drill bit body 1, the output end of the drill bit motor is matched with the hexagonal matching groove 15, the output end of the drill bit motor is fixedly connected with the drill bit connecting sleeve 9 by means of the connecting threads 11, and during work, a proper amount of water is injected into the water injection pipe 3 and sprayed to a rock stratum, so that the wetting effect can be achieved, the drill bit can conveniently drill, the drilling capacity is indirectly improved, dust can be absorbed, and dust raising is avoided. The scraps generated by drilling can rapidly fall off from the drill bit under the action of the chip grooves 16 and cannot be accumulated on the pull head, so that the drill bit can be ensured to be fully contacted with the rock stratum, and the drilling efficiency is improved. The drill bit can be connected with power equipment through the hexagonal matching groove 15 and the connecting threads 11, and the drill bit is convenient to detach.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a combination formula bore bit for general equipment, includes main drilling bore bit body (1), its characterized in that: the drilling tool is characterized in that an auxiliary expansion bit body (6) is arranged outside the main drilling bit body (1), two auxiliary expansion bit bodies (6) are arranged, the two auxiliary expansion bit bodies (6) are symmetrically arranged relative to the main drilling bit body (1), sliding grooves (5) are formed in the main drilling bit body (1) and the auxiliary expansion bit bodies (6), a drilling alloy cutter (2) is arranged above the main drilling bit body (1), one end of the drilling alloy cutter (2) extends into the sliding grooves (5), locking nut nuts (12) are arranged between the drilling alloy cutter (2) and the main drilling bit body (1), four locking nut nuts (12) are arranged, one ends of the four locking nut nuts (12) penetrate through the drilling alloy cutter (2) and extend into the main drilling bit body (1), and an expansion alloy cutter (7) is arranged above the auxiliary expansion bit body (6), four expansion alloy cutters (7) are arranged, one ends of the four expansion alloy cutters (7) extend to the inner wall of the sliding groove (5), a locking nut C (12) is arranged between the expansion alloy cutters (7) and the auxiliary expansion bit bodies (6), one end of the locking nut C (12) penetrates through the expansion alloy cutters (7) and extends to the inner parts of the auxiliary expansion bit bodies (6), locking nuts A (8) are arranged on the outer parts of the two auxiliary expansion bit bodies (6), one end of each locking nut A (8) penetrates through the auxiliary expansion bit bodies (6) and extends to the inner part of the main drilling bit body (1), two bit connecting sleeves (9) are arranged on the outer parts of the two auxiliary expansion bit bodies (6), the two bit connecting sleeves (9) are attached to the auxiliary expansion bit bodies (6), and locking nuts B (10) are arranged on the outer parts of the two bit connecting sleeves (9), and one end of the locking nut B (10) penetrates through the drill bit connecting sleeve (9) and the auxiliary expanding drill bit body (6) and extends into the main drilling drill bit body (1).

2. The combined drill bit for the general equipment according to claim 1, characterized in that: the water injection pipe (3) is arranged inside the main drilling bit body (1), and one end of the water injection pipe (3) penetrates through the main drilling bit body (1) and extends to the outside of the main drilling bit body (1).

3. The combined drill bit for the general equipment according to claim 2, characterized in that: the inside of water injection pipe (3) is provided with prevents stifled net (4), and prevents that stifled net (4) is connected with the inner wall laminating of water injection pipe (3).

4. The combined drill bit for the general equipment according to claim 1, characterized in that: a chip groove (16) is arranged above the two auxiliary expanding bit bodies (6), and one end of the chip groove (16) extends into the auxiliary expanding bit bodies (6).

5. The combined drill bit for the general equipment according to claim 1, characterized in that: the main drilling bit body (1) and the auxiliary expanding bit body (6) are internally provided with a convex block (13) and a groove (14), and the sizes of the convex block (13) and the groove (14) are matched.

6. The combined drill bit for the general equipment according to claim 1, characterized in that: the outer portion of the drill bit connecting sleeve (9) is provided with a connecting thread (11), the connecting thread (11) is attached to the drill bit connecting sleeve (9), and a hexagonal anastomosis groove (15) is formed in the drill bit connecting sleeve (9).