CN212689934U

CN212689934U - Efficient drilling diamond composite sheet drill bit

Info

Publication number: CN212689934U
Application number: CN202021738473.9U
Authority: CN
Inventors: 范玉华; 孙建伟; 张拥军
Original assignee: Borek Mining Equipment Co ltd
Current assignee: Borek Mining Equipment Co ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2021-03-12
Anticipated expiration: 2030-08-19

Abstract

The application discloses compound piece drill bit of high-efficient chisel hole diamond through set up the circular cone drill bit on cutting head top surface to set up the cutting column tooth in circular cone drill bit periphery, can utilize adjacent circular cone drill bit to form the crack of intercommunication conical flute under the effect of wearing the chiseling power, strike, smash the crack by the cutting column tooth again, thereby the process of punching the hole with higher speed improves the chisel hole efficiency.

Description

Efficient drilling diamond composite sheet drill bit

Technical Field

The application relates to a high-efficient chisel hole diamond compact piece drill bit belongs to the mining machinery field.

Background

Mining machinery refers to mechanical equipment used for directly participating in various processes such as mineral raw material mining and enriching. The existing mining machinery can be divided into two types, namely mining machinery and mineral processing machinery.

Mining machines include rock drills, blast filling devices, handling devices, etc. commonly used in underground mining, of which rock drills are most commonly used, among others. The rock drill is a machine which uses mechanical impact energy to drive a drill bit to impact and crush rock so as to form a blast hole, and comprises a handheld type, an air-leg type and a guide rail type, and the power of the rock drill comprises pneumatic power, hydraulic power, electric power and an internal combustion engine. The blasted rock is transported away from the site by the shipping equipment for further excavation.

If the existing rock drill does not have a good alloy drill bit, the rock drill cannot give full play to the mechanical property any more, and the rock with higher hardness is difficult to crush.

The existing diamond bit has wide application range, and can drill hard and extremely hard rock stratums (a surface embedded natural diamond bit or a single crystal diamond-impregnated bit); rock formations ranging from soft to medium hard and soft hard interbedded (polycrystalline and compact bits) may also be drilled.

The existing drill bit mainly grinds and cuts rock masses through cylinder cutting teeth, so that the punching efficiency is low, the mining process is prolonged, the production time of operators in severe environments is prolonged, and the artificial health is influenced.

SUMMERY OF THE UTILITY MODEL

The application provides a high-efficient chisel hole diamond compact drill bit for solving above-mentioned technical problem.

The application provides a high-efficient chisel hole diamond compact drill bit, include: the cutting head is arranged at one end of the rod piece;

the body of rod center pin direction sets up the inlet tube along the body of rod is vertically link up to the body of rod, and the inlet tube includes: the water inlet of the frustum is arranged at the first end of the rod body and is communicated with the water inlet pipe; the second end of the water inlet of the frustum is communicated with the first end of the throat pipe; the second end of the throat pipe is communicated with one end of the expansion pipe;

a water outlet pipe is arranged in the cutting head along the longitudinal direction of the cutting head and communicated with the second end of the expansion pipe; the water outlet pipe is communicated with a water outlet arranged on the top surface of the cutting head;

the diameter of the cross section of the throat pipe is smaller than that of the first end surface of the frustum water inlet; the diameter of the cross section of the throat pipe is smaller than that of the second end surface of the expansion pipe;

the cutting head includes: the cutting teeth are arranged on the top surface of the cutting head and arranged around the water outlet; the slag discharge grooves are arranged on the outer side wall of the cutting head at intervals and longitudinally penetrate through the side wall of the cutting head along the cutting head;

the method comprises the following steps: a plurality of conical chisel platforms and cutting cylinder teeth arranged on the top surface of the cutting head; a plurality of conical chisel platforms are arranged on the top surface of the cutting head around the water outlet, and cutting column teeth are arranged on the periphery of the conical chisel platforms.

Preferably, the method comprises the following steps: the boss is arranged on the top surface of the cutting head; the conical chisel platform and the cutting column teeth are arranged on the top surface of the boss.

Preferably, the method comprises the following steps: the conical chisel platform includes: the first cone drill bit, the second cone drill bit, the third cone drill bit and the fourth cone drill bit are arranged at intervals and around the water outlet.

Preferably, the method comprises the following steps: the cutting stud tooth includes: the first cutting column tooth is arranged at the periphery of the first conical chisel platform and is opposite to the interval between the first conical chisel platform and the second conical chisel platform;

the second cutting column teeth are arranged on the periphery of the third conical chisel table and are arranged opposite to the interval between the second conical chisel table and the third conical chisel table;

the third cutting column teeth are arranged on the periphery of the third conical chisel platform and are arranged opposite to the interval between the third conical chisel platform and the fourth conical chisel platform;

and the fourth cutting column tooth is arranged at the periphery of the fourth conical chisel platform and is opposite to the interval between the fourth conical chisel platform and the first conical chisel platform.

Preferably, the method comprises the following steps: the conical chisel platform includes: the cutting head comprises a hard alloy embedded block and a polycrystalline diamond layer, wherein the hard alloy embedded block is embedded in the top surface of the cutting head; the polycrystalline diamond layer is coated on the outer surface of the hard alloy insert block.

Preferably, the method comprises the following steps: the cutting stud tooth includes: the cutting head comprises a hard alloy embedded block and a polycrystalline diamond layer, wherein the hard alloy embedded block is embedded in the top surface of the cutting head; the polycrystalline diamond layer is coated on the outer surface of the hard alloy insert block.

Preferably, the polycrystalline diamond layer is disposed on the cutting head top surface in a cladding manner.

The beneficial effects that this application can produce include:

1) the application provides a compound piece drill bit of high-efficient chisel hole diamond through set up the circular cone drill bit on cutting head top surface to set up the cutting column tooth in circular cone drill bit periphery, can utilize adjacent circular cone drill bit to form the crack of intercommunication conical flute under the effect of cutting a hole of wearing, strike, smash the crack by the cutting column tooth again, thereby the process of punching a hole with higher speed improves the efficiency of chisel hole.

Drawings

FIG. 1 is a schematic perspective front view of a high efficiency gouging diamond compact drill bit provided herein;

FIG. 2 is a schematic front view of a flanking cutter assembly provided by the present application;

FIG. 3 is a schematic top view of a high efficiency gouging diamond compact drill bit provided herein;

FIG. 4 is an enlarged partial cross-sectional view taken at point A in FIG. 1;

FIG. 5 is a schematic top view of a further embodiment of a high efficiency gouging diamond compact drill bit;

illustration of the drawings:

10. a rod body; 11. a water inlet of the frustum; 111. a throat; 112. expanding a large pipe; 113. a water outlet pipe; 115. a first drain pipe; 114. a second drain pipe; 30. a cutting head; 34. a boss; 31. a water outlet; 32. cutting the column teeth; 33. a conical chisel table; 341. a slag discharge groove; 21. a first lateral wing knife assembly; 22. a second wing knife assembly; 213. a forward cutting blade; 212. cutting the body; 211. a backward cutting tool; 331. a cemented carbide insert; 332. a polycrystalline diamond layer.

Detailed Description

The present application will be described in detail with reference to examples, but the present application is not limited to these examples.

Referring to fig. 1, the present application provides a high efficiency gouging diamond compact drill bit, comprising: the cutting head 30 is arranged at one end of the rod and can be connected by integral molding or welding; the body of rod 10 center pin direction sets up the inlet tube along the vertical link up body of rod 10 of the body of rod 10, and the inlet tube includes: the water inlet device comprises a frustum water inlet 11, a throat pipe 111 and an expansion pipe 112, wherein the frustum water inlet 11 is arranged at the first end of a rod body 10 and is communicated with a water inlet pipe; the second end of the frustum water inlet 11 is communicated with the first end of the throat pipe 111; the second end of the throat 111 is communicated with one end of the expansion pipe 112;

a water outlet pipe 113 is arranged in the cutting head 30 and longitudinally penetrates through the cutting head 30 along the cutting head 30, and the water outlet pipe 113 is communicated with the second end of the expansion pipe 112; the water outlet pipe 113 is communicated with a water outlet 31 provided on the top surface of the cutting head 30;

the diameter of the cross section of the throat pipe 111 is smaller than that of the first end face of the frustum water inlet 11; the diameter of the cross section of the throat pipe 111 is smaller than that of the second end surface of the expansion pipe 112;

the cutting head 30 includes: a plurality of cutting teeth provided on the top surface of the cutting head 30 and arranged around the water outlet 31, and a plurality of slag discharge grooves 341; the slag discharge grooves 341 are arranged on the outer side wall of the cutting head 30 at intervals, and the slag discharge grooves 341 longitudinally penetrate through the side wall of the cutting head 30 along the cutting head 30;

referring to fig. 3, comprising: a plurality of conical chisel seats 33, cutting cylinder teeth 32 provided on the top surface of the cutting head 30; a plurality of conical chisel tables 33 are arranged on the top surface of the cutting head 30 around the water outlet 31, and cutting cylinder teeth 32 are arranged on the periphery of the conical chisel tables 33.

The conical chisel 33 is arranged according to the method, a plurality of conical grooves can be formed on the surface of the rock through the tips of a plurality of adjacent conical chisel 33, and the adjacent conical grooves form interconnected cracks along with the conduction of stress in the rock along with the deepening of a chisel hole, so that the peripheral cutting column teeth 32 can accelerate the formed cutting face rock to break at the cracks between the adjacent conical grooves, the crushing efficiency is accelerated, and the flatness of the crushing face is improved.

Through setting up the different pipelines of a plurality of cross section sizes in the body of rod 10 inside, can accelerate, pressurize the coolant liquid in the throat 111 part in the body of rod 10, be favorable to breaking away by the delivery port 31 that the powder was filled and is blockked up. The operation safety is improved, and the influence on the service life of the drill bit caused by overhigh local temperature is avoided.

When the cutting tool is used, the cutting teeth on the top surface of the cutting head 30 cut and crush rocks, the cutting surface is cooled by the cooling liquid and takes away cutting dust, and the cooling liquid is mixed with the cutting dust and discharged from the slag discharge groove 341.

Preferably, the first end of the enlarged tube 112 is the same diameter as the cross-section of the throat 111; the second end of the expansion pipe 112 has the same diameter as the first end of the outlet pipe 113.

Preferably, the diameter of the second end of the outlet pipe 113 is smaller than the diameter of the first end of the outlet pipe 113. According to the arrangement, the cooling water can be pressurized again, so that the cooling water flows out from the water outlet 31 at a high speed, and the cleaning, washing and cooling effects are improved.

Preferably, a boss 34 is provided on the top surface of the cutting head 30 and cutting teeth are provided on the top surface of the boss 34. By providing the boss 34, the coolant can flow out from the top surface of the boss 34 to the slag discharge groove 341 on the outer side wall of the cutting head 30, and the slag discharge efficiency and the cutting efficiency are improved.

Referring to fig. 5, preferably, the outlet pipe 113 includes: a first drain pipe 115, a first end of the first drain pipe 115 communicating with a second end of the expansion pipe 112; the second end of the first drainage tube 115 is disposed on the top surface of the cutting head 30, and two adjacent pairs of cutting teeth are disposed on both sides of the second end of the first drainage tube 115.

Preferably, the outlet pipe 113 includes: a second drain pipe 114, a first end of the second drain pipe 114 being in communication with a second end of the expansion pipe 112; the second end of the second drainage pipe 114 is disposed on the top surface of the cutting head 30, and two adjacent pairs of cutting teeth are disposed on both sides of the second end of the first drainage pipe 115.

Preferably, the first and

second drain pipes

115 and 114 are symmetrically disposed on both sides of the center line of the cutting head 30.

Referring to fig. 1, preferably, the slag chute includes: the first slag discharge groove is arranged on the first side wall of the cutting head; the second slag discharge groove and the first slag discharge groove are symmetrically arranged on the second side wall of the cutting head; the third slag discharge groove is arranged on the third side wall of the cutting head, and the fourth slag discharge groove and the third slag discharge groove are symmetrically arranged on the fourth side wall of the cutting head.

Preferably, the planes of the first slag discharging groove and the second slag discharging groove are perpendicular to the planes of the third slag discharging groove and the fourth slag discharging groove, and the slag discharging efficiency can be improved according to the arrangement.

Referring to fig. 1, preferably, it comprises: the multiple groups of side wing cutter assemblies are arranged at intervals, the first ends of the side wing cutter assemblies are arranged on the outer side wall of the cutting head 30, and the second ends of the side wing cutter assemblies are arranged on the outer side wall of the rod body 10.

According to the arrangement, the rock mass remained on the inner wall of the hole channel can be cleaned while the hole is opened, and the smoothness degree of the inner wall of the hole channel is improved.

Preferably, the flanking knife assembly comprises: the first side wing knife assembly 21, the second side wing knife assembly 22, the third side wing knife assembly and the fourth side wing knife assembly are arranged at intervals; the first lateral wing knife assembly 21 and the second lateral wing knife assembly 22 are symmetrically arranged at two sides of the rod body 10 and are positioned on a first plane; the third side wing cutter assembly and the fourth side wing cutter assembly are symmetrically arranged on the other two sides of the rod body 10 and are positioned on a second plane; the first plane and the second plane are perpendicular to each other. According to the arrangement, a cutting layer can be formed on the outer wall of the rod body 10, and the flatness of the inner wall of the chisel hole is improved.

Preferably, a first end of the first wing knife assembly 21 is disposed on an outer sidewall of the cutting head 30, and a second end of the first wing knife assembly 21 is disposed on an outer sidewall of the rod body 10.

Preferably, a first end of the second lateral wing knife assembly 22 is disposed on an outer sidewall of the cutting head 30, and a second end of the second lateral wing knife assembly 22 is disposed on an outer sidewall of the rod body 10.

Preferably, a first end of the third side wing-knife assembly is disposed on an outer sidewall of the cutting head 30, and a second end of the third side wing-knife assembly is disposed on an outer sidewall of the rod body 10.

Preferably, a first end of the fourth side fence assembly is disposed on the outer sidewall of the cutting head 30, and a second end of the fourth side fence assembly is disposed on the outer sidewall of the rod body 10.

Referring to fig. 3, preferably, the flanking cutter assembly includes: a forward cutting blade 213, a cutting body 212, and a backward cutting blade 211, the forward cutting blade 213 being disposed on a first end of the cutting body 212; the backward cutter 211 is provided on a second end of the cutting body 212; the forward cutting blades 213 are provided on the outer wall of the cutting head 30; the backward cutter 211 is provided on the outer wall of the rod body 10.

By providing the cutting blades at both ends of the cutting body 212, it is possible to enlarge a hole when entering and exiting the hole, thereby further preventing the cutting head 30 from being caught in the hole, and improving the drilling efficiency.

Through setting up flank sword subassembly, can be when moving back the sword, clear up the broken rock that the section stretches out the cutting face to improve the regularity of cutting the hole, avoid cutting head 30 to be blocked simultaneously, can't withdraw from, improve the safety of chisel hole efficiency and hole at the roughness, the follow-up landfill explosive of being convenient for.

Preferably, the method comprises the following steps: a boss 34, the boss 34 being disposed on the top surface of the cutting head 30; the conical chisel 33 and the cutting stud 32 are arranged on the top surface of the boss 34.

Preferably, the conical chisel 33 includes: the first cone drill bit 33, the second cone drill bit 33, the third cone drill bit 33 and the fourth cone drill bit 33 are arranged at intervals and around the water outlet 31.

Preferably, the cutting stud 32 includes: a first cutting stud 32, a second cutting stud 32, a third cutting stud 32 and a fourth cutting stud 32, the first cutting stud 32 being disposed at the periphery of the first conical chisel 33 and facing the first conical chisel 33 and the second conical chisel 33 at an interval; the second cutting column teeth 32 are arranged on the periphery of the third cone chisel 33 and are arranged opposite to the interval between the second cone chisel 33 and the third cone chisel 33; the third cutting column teeth 32 are arranged on the periphery of the third cone chisel 33 and are arranged opposite to the interval between the third cone chisel 33 and the fourth cone chisel 33;

the fourth cutting stud 32 is disposed on the periphery of the fourth conical chisel 33 and faces the fourth conical chisel 33 and the first conical chisel 33 at a distance from each other.

According to the arrangement, the cutting efficiency can be improved, and the cutting effect is ensured.

Referring to fig. 4, preferably, the cutting tooth includes: a hard alloy insert 331 and a polycrystalline diamond layer 332, wherein the hard alloy insert 331 is embedded in the top surface of the cutting head 30; the polycrystalline diamond layer 332 covers the outer surface of the carbide insert 331. When the cutting tooth includes the conical chisel 33, the cutting stud 32, the cemented carbide insert 331 is disposed as its main body on the top face of the cutting head 30; the polycrystalline diamond layer 332 covers the outer wall of the cemented carbide insert 331.

Preferably, the polycrystalline diamond layer 332 is clad on the top surface of the cutting head 30.

The polycrystalline diamond layer 332 provided in the present application may be formed on the surface of the cemented carbide substrate by high-temperature, high-pressure, and sintering.

Reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," "a preferred embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. An efficient gouging diamond compact drill bit, comprising: a rod body (10), a cutting head (30), said cutting head (30) being arranged at one end of the rod body;

the body of rod (10) center pin direction sets up the inlet tube along the body of rod (10) vertical link up body of rod (10), and the inlet tube includes: the water inlet device comprises a frustum water inlet (11), a throat pipe (111) and an expansion pipe (112), wherein the frustum water inlet (11) is arranged at the first end of a rod body (10) and is communicated with a water inlet pipe; the second end of the frustum water inlet (11) is communicated with the first end of the throat pipe (111); the second end of the throat pipe (111) is communicated with one end of the expansion pipe (112);

a water outlet pipe (113) is arranged in the cutting head (30) and longitudinally penetrates through the cutting head (30) along the cutting head (30), and the water outlet pipe (113) is communicated with the second end of the expansion pipe (112); the water outlet pipe (113) is communicated with a water outlet (31) arranged on the top surface of the cutting head (30);

the diameter of the cross section of the throat pipe (111) is smaller than that of the first end face of the frustum water inlet (11); the diameter of the cross section of the throat (111) is smaller than that of the second end face of the expansion pipe (112);

the cutting head (30) comprising: a plurality of cutting teeth and a plurality of slag discharge grooves (341), wherein the cutting teeth are arranged on the top surface of the cutting head (30) and surround the water outlet (31); the slag discharge grooves (341) are arranged on the outer side wall of the cutting head (30) at intervals, and the slag discharge grooves (341) longitudinally penetrate through the side wall of the cutting head (30) along the cutting head (30);

the method comprises the following steps: a plurality of conical chisel seats (33) and cutting cylinder teeth (32) arranged on the top surface of the cutting head (30); a plurality of conical chisels (33) are arranged on the top surface of the cutting head (30) around the water outlet (31), and cutting column teeth (32) are arranged on the periphery of the conical chisels (33).

2. A high efficiency gouging diamond compact drill bit as claimed in claim 1 comprising: a boss (34), the boss (34) being disposed on the top surface of the cutting head (30); the conical chisel platform (33) and the cutting column teeth (32) are arranged on the top surface of the boss (34).

3. A high efficiency gouging diamond compact drill bit as claimed in claim 1 comprising: the conical chisel (33) comprises: the drill bit comprises a first cone drill bit (33), a second cone drill bit (33), a third cone drill bit (33) and a fourth cone drill bit (33), wherein the first cone drill bit (33), the second cone drill bit (33), the third cone drill bit (33) and the fourth cone drill bit (33) are mutually spaced and arranged around a water outlet (31).

4. A high efficiency gouging diamond compact drill bit as claimed in claim 1 comprising: the cutting stud (32) comprising: the first cutting column tooth (32), the second cutting column tooth (32), the third cutting column tooth (32) and the fourth cutting column tooth (32), wherein the first cutting column tooth (32) is arranged at the periphery of the first conical chisel (33) and is opposite to the interval between the first conical chisel (33) and the second conical chisel (33);

the second cutting column teeth (32) are arranged on the periphery of the third conical drill platform (33) and are arranged opposite to the second conical drill platform (33) and the third conical drill platform (33) at intervals;

the third cutting column teeth (32) are arranged on the periphery of the third conical drill platform (33) and are arranged opposite to the third conical drill platform (33) and the fourth conical drill platform (33) at intervals;

and the fourth cutting column tooth (32) is arranged on the periphery of the fourth conical drill platform (33) and is just opposite to the interval between the fourth conical drill platform (33) and the first conical drill platform (33).

5. A high efficiency gouging diamond compact drill bit as claimed in claim 1 comprising: the conical chisel (33) comprises: the cutting head comprises a hard alloy insert block (331) and a polycrystalline diamond layer (332), wherein the hard alloy insert block (331) is embedded in the top surface of the cutting head (30); the polycrystalline diamond layer (332) is arranged by coating the outer surface of the hard alloy insert block (331).

6. A high efficiency gouging diamond compact drill bit as claimed in claim 1 comprising: the cutting stud (32) comprising: the cutting head comprises a hard alloy insert block (331) and a polycrystalline diamond layer (332), wherein the hard alloy insert block (331) is embedded in the top surface of the cutting head (30); the polycrystalline diamond layer (332) is arranged by coating the outer surface of the hard alloy insert block (331).

7. A high efficiency chisel diamond compact drill bit as claimed in claim 5 or 6, wherein the polycrystalline diamond layer (332) is clad on the top surface of the cutting head (30).