CN218293500U

CN218293500U - Diamond coreless drill bit

Info

Publication number: CN218293500U
Application number: CN202223041666.0U
Authority: CN
Inventors: 蒋艳; 王文娟
Original assignee: Ganzhou Chuangxin Highway Development Co ltd
Current assignee: Ganzhou Chuangxin Highway Development Co ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-01-13
Anticipated expiration: 2032-11-16

Abstract

The utility model provides a diamond coreless drill bit, which belongs to the technical field of drill bits and aims to solve the problems that the existing diamond coreless drill bit is mostly of an integrated structure, when a cutting edge of the drill bit is damaged by impact, the whole drill bit needs to be detached from drilling equipment for replacement, the operation is complex, and the working efficiency is not high enough, comprising that a stand column is slidably connected to the inner side of a drill body; the tool apron is fixedly connected to the upper end of the upright post; the inner cutting edge is rotationally connected to the inner side of the upper end of the cutter holder; the water outlet hole is formed in the inner sides of the drill body, the upright post and the tool apron; the disassembling and assembling mechanism is arranged on the inner side of the drill body; the discharging mechanism is arranged on the outer side of the drill body; through the utility model discloses a setting has realized the change to the cutting edge, dismantles simply laborsavingly, has reduced intensity of labour, has improved work efficiency, has reduced use cost, has still realized preventing that the rubble from causing wearing and tearing to the drill bit, has prolonged life, has reduced use cost.

Description

Diamond coreless drill bit

Technical Field

The utility model belongs to the technical field of the drill bit, more specifically says, in particular to diamond centreless drill bit.

Background

The drill bit with the diamond as the cutting edge is called a diamond drill bit, belongs to an integrated drill bit, has simple structure, high strength, high wear resistance and impact resistance, and is generally used by installing the diamond coreless drill bit on drilling equipment when drilling a rock stratum.

According to the application number: the coreless drill bit for the diamond composite sheet disclosed by CN201820969883.0 comprises a drill bit body, the diamond composite sheet and a stand column, wherein the drill bit body comprises a cylindrical section, blades and a chip removal groove, the bottom surfaces of the blades are positioned on a trapezoidal arc surface of the cylindrical section, the chip removal groove is arranged between the two blades and positioned on the trapezoidal arc surface of the cylindrical section, and a tapered threaded hole, a first water drainage hole, a second water drainage hole and a cylindrical hole are formed in the cylindrical section; the column is fixed in a cylindrical hole of a cylindrical section of the drill bit body, the diamond composite sheets are fixed on blades of the drill bit body and the column, and the installation directions of the diamond composite sheets on the blades and on the column are the same and the included angles of the diamond composite sheets with the central line of the drill bit are the same; by adopting the cylindrical or conical diamond composite sheet with the arc-shaped surface, the welding seam between the composite sheet and the drill bit wing is the arc-shaped surface, so that the bonding force and strength of the welding seam are enhanced; the auxiliary drill bit arranged on the central upright column enhances the drilling speed of the whole drill bit and improves the drilling efficiency.

Based on the aforesaid, current diamond centreless drill bit is mostly the integral type structure, although diamond cutting edge hardness is stronger, diamond cutting edge is whole more fragile, the cutting edge when the drill bit receives the impact damages easily, need follow drilling equipment after screwing off the drill bit is whole to be changed after damaging, because the drill bit need be screwed up on drilling equipment, need use great dynamics when needs are dismantled, it is comparatively difficult to dismantle, work efficiency is not high enough, and current cutting edge generally is threaded connection on the drill bit, the screw thread damages easily when the cutting edge receives the impact, need change drill bit wholly, use cost is higher.

Accordingly, the present invention is directed to provide a diamond coreless drill bit, which is improved in view of the existing structure and defects, so as to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a diamond centreless drill bit, be the integral type structure with solving current diamond centreless drill bit, although diamond cutting edge hardness is stronger, diamond cutting edge is whole more fragile, damage easily when the cutting edge of drill bit receives the impact, need change after wholly unscrewing the drill bit from drilling equipment after damaging, because the drill bit need be screwed up on drilling equipment, need use great dynamics when needs are dismantled, it is comparatively difficult to dismantle, work efficiency is high inadequately, and current cutting edge generally is threaded connection on the drill bit, the screw thread damages easily when the cutting edge receives the impact, need wholly change the drill bit, the higher problem of use cost.

The purpose and the efficacy of the diamond coreless drill bit of the utility model are achieved by the following concrete technical means:

the diamond coreless drill bit comprises a drill body, an upright post, a tool apron, an internal cutting edge, a water outlet hole, a dismounting mechanism and a discharging mechanism; the upright post is connected to the inner side of the drill body in a sliding manner; the tool apron is fixedly connected to the upper end of the upright post; the inner cutting edge is rotatably connected to the inner side of the upper end of the tool apron; the water outlet is formed in the inner sides of the drill body, the upright post and the tool apron; the disassembling and assembling mechanism is arranged on the inner side of the drill body; the discharging mechanism is arranged on the outer side of the drill body.

Further, the disassembly and assembly mechanism includes: the mounting block, the limiting plate and the mounting spring; the number of the mounting blocks is two, and the two mounting blocks are respectively connected to the inner sides of the stand columns in a sliding manner; the limiting plate is inserted in the middle of the two mounting blocks; the mounting spring is fixedly connected to the lower end face of the limiting plate, and the lower end of the mounting spring is fixedly connected to the inner side of the lower end of the drill body.

Further, the disassembly and assembly mechanism further comprises: a push plate and a compression spring; the plurality of push plates are arranged and are respectively connected to the inner side of the cutter holder in a sliding manner; the compression springs are arranged in a plurality of numbers, the compression springs are fixedly connected to the upper end faces of the push plates respectively, and the compression springs are fixedly connected to the inner sides of the upper ends of the tool apron.

Further, the disassembly and assembly mechanism further comprises: a limiting block and a limiting spring; the limiting blocks are arranged in plurality and are respectively connected to the inner sides of the tool holders in a sliding manner; the limiting springs are arranged in a plurality of numbers, the limiting springs are fixedly connected to the outer sides of the limiting blocks respectively, and the limiting springs are fixedly connected to the inner sides of the tool apron.

Further, the dismouting mechanism still includes: disassembling the slot and the extension spring; the disassembly groove is formed in the inner sides of the stand column and the tool apron; the extension springs are provided with a plurality of extension springs which are respectively fixedly connected to the inner sides of the two mounting blocks, and the extension springs are fixedly connected to the inner sides of the stand columns.

Further, the discharge mechanism comprises: a discharge chute; the discharge tank is provided with a plurality of discharge tanks, the discharge tanks are respectively arranged on the outer side of the drill body, and the discharge tanks are circumferentially arrayed on the outer side of the drill body.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses a setting of dismouting mechanism has realized the change to the drill bit, takes off the back with the inside cutting edge, ejecting the limiting plate through the dismantlement groove, makes the installation piece break away from the drill body, alright dismantle the blade holder, dismantle simple laborsaving, reduced intensity of labour, improved work efficiency, and inside cutting edge joint is in the inboard of blade holder, can prevent to lead to the cutting edge to damage when the drill bit drills, reduced use cost, improved work efficiency; due to the arrangement of the discharge mechanism, when the drill bit drills, the broken stones around the drill bit are discharged upwards, the abrasion of the broken stones to the drill bit is reduced, the service life is prolonged, and the use cost is reduced; through the arrangement of the mechanism, the cutting edge is replaced, the dismounting is simple and labor-saving, the labor intensity is reduced, the working efficiency is improved, the use cost is reduced, the abrasion of the drill bit caused by the broken stone is prevented, the service life is prolonged, and the use cost is reduced.

Drawings

Fig. 1 is a schematic structural view of the main body of the present invention.

Fig. 2 is a schematic structural view of the main body side section of the present invention.

Fig. 3 is a schematic structural diagram of the stand column of the present invention.

Fig. 4 is a schematic structural diagram of the inner side of the column of the present invention.

Fig. 5 is a schematic structural view of the inner cutting edge of the present invention.

Fig. 6 is a schematic structural view of the push plate of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a drill body; 101. a discharge chute; 2. a column; 3. a tool apron; 301. disassembling the groove; 4. an inner cutting edge; 5. a water outlet hole; 6. mounting blocks; 7. a limiting plate; 701. installing a spring; 8. pushing a plate; 9. a compression spring; 10. a limiting block; 11. a limiting spring; 12. a tension spring.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are provided to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

The embodiment is as follows:

as shown in figures 1 to 6:

the utility model provides a diamond coreless drill bit, which comprises a drill body 1, a stand column 2, a tool apron 3, an internal cutting edge 4, a water outlet hole 5, a disassembly and assembly mechanism and a discharge mechanism; the upright post 2 is connected to the inner side of the drill body 1 in a sliding way; the tool apron 3 is fixedly connected with the upper end of the upright post 2; the inner cutting edge 4 is rotationally connected to the inner side of the upper end of the tool apron 3; the water outlet 5 is formed in the inner sides of the drill body 1, the upright post 2 and the tool apron 3; the dismounting mechanism is arranged on the inner side of the drill body 1; the discharging mechanism is arranged outside the drill body 1.

Wherein, dismouting mechanism includes: the mounting block 6, the limiting plate 7 and the mounting spring 701; two mounting blocks 6 are arranged, and the two mounting blocks 6 are respectively connected to the inner sides of the upright posts 2 in a sliding manner; the limiting plate 7 is inserted in the middle of the two mounting blocks 6; the installation spring 701 is fixedly connected to the lower end face of the limiting plate 7, the lower end of the installation spring 701 is fixedly connected to the inner side of the lower end of the drill body 1, in use, the limiting plate 7 is inserted into the middle of the two installation blocks 6 under the action of the installation spring 701, the two installation blocks 6 are pushed open towards the outer side, the installation blocks 6 are inserted into the inner side of the drill body 1, and the stand column 2 is limited.

Wherein, dismouting mechanism still includes: a push plate 8 and a compression spring 9; a plurality of push plates 8 are arranged, and the push plates 8 are respectively connected to the inner side of the cutter holder 3 in a sliding manner; compression spring 9 is equipped with a plurality ofly, and a plurality of compression spring 9 respectively fixed connection at the up end of a plurality of push pedal 8, and compression spring 9 fixed connection has realized the installation to inside cutting edge 4 in the inboard of blade holder 3 upper end, in use, through push pedal 8 and compression spring 9's setting, and push pedal 8 supports inside cutting edge 4 at the inboard of blade holder 3.

Wherein, dismouting mechanism still includes: a limiting block 10 and a limiting spring 11; a plurality of limiting blocks 10 are arranged, and the limiting blocks 10 are respectively connected to the inner sides of the tool holders 3 in a sliding manner; spacing spring 11 is equipped with a plurality ofly, and a plurality of spacing springs 11 are fixed connection in the outside of a plurality of stopper 10 respectively, spacing spring 11 fixed connection is in the inboard of blade holder 3, in use, pull-up inside cutting edge 4, make inside cutting edge 4 drive push pedal 8 upwards slide and cross stopper 10, anticlockwise rotation inside cutting edge 4 is dismantled inside cutting edge 4 this moment, and push pedal 8 can stop in the normal position under stopper 10's effect, peg graft inside cutting edge 4 behind the upper end of blade holder 3, clockwise rotation inside cutting edge 4, make inside cutting edge 4 crowd the inboard of blade holder 3 with stopper 10, push pedal 8 loses stopper 10's spacing this moment, push pedal 8 can promote inside cutting edge 4 downwards under compression spring 9's effect, install inside cutting edge 4.

Wherein, dismouting mechanism still includes: the detachment groove 301 and the extension spring 12; the dismounting groove 301 is arranged at the inner sides of the upright post 2 and the tool apron 3; the extension springs 12 are arranged in a plurality, the extension springs 12 are fixedly connected to the inner sides of the two mounting blocks 6 respectively, the extension springs 12 are fixedly connected to the inner sides of the stand column 2, in use, after the inner cutting edge 4 is detached, the limiting plate 7 is pushed downwards through the detaching groove 301, at the moment, the two mounting blocks 6 slide inwards under the action of the extension springs 12 and are separated from the inner side of the drill body 1, and the stand column 2 and the tool apron 3 can be taken out.

Wherein, arrange material mechanism includes: a discharge chute 101; the plurality of discharge grooves 101 are formed, the discharge grooves 101 are formed in the outer side of the drill body 1 respectively, the discharge grooves 101 are circumferentially arrayed on the outer side of the drill body 1, and in use, due to the arrangement of the discharge grooves 101, broken stones in holes are discharged when drilling is carried out.

The specific use mode and function of the embodiment are as follows:

the utility model discloses in use, peg graft in the middle part of two installation pieces 6 under the effect of installation spring 701 through limiting plate 7, push away two installation pieces 6 to the outside, make installation piece 6 peg graft in the inboard of the drill body 1, spacing stand 2, through the setting of push pedal 8 and compression spring 9, the installation to inside cutting edge 4 has been realized, push pedal 8 supports inside cutting edge 4 at the inboard of blade holder 3, pull up inside cutting edge 4, make inside cutting edge 4 drive push pedal 8 upwards to slide and cross stopper 10, the inside cutting edge 4 of anticlockwise rotation is dismantled to this moment, and push pedal 8 can stop in the normal position under the effect of stopper 10, peg graft inside cutting edge 4 in the upper end of blade holder 3 after, clockwise rotation inside cutting edge 4, make inside cutting edge 4 extrude the inboard of stopper 10 into the blade holder 3 with stopper 10, push pedal 8 loses the spacing of stopper 10 this moment, push pedal 8 can push inside cutting edge 4 downwards under the effect of compression spring 9, install inside cutting edge 4, after dismantling inside cutting edge 4, push down blade holder 7 through dismantling groove 301, at this moment, two installation pieces 6 can be in the tensile spring 12 can break away from the inboard of drill body, the inboard 3 that the slip can be broken away from the drill body 2 with the inboard 3; through the arrangement of the discharge groove 101, the crushed stones in the hole can be discharged when drilling is carried out.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. Diamond centreless drill bit, its characterized in that: comprises a drill body (1), a vertical column (2), a tool apron (3), an inner cutting edge (4), a water outlet hole (5), a disassembly and assembly mechanism and a discharge mechanism; the upright post (2) is connected to the inner side of the drill body (1) in a sliding manner; the tool apron (3) is fixedly connected to the upper end of the upright post (2); the inner cutting edge (4) is rotatably connected to the inner side of the upper end of the cutter holder (3); the water outlet (5) is formed in the inner sides of the drill body (1), the upright post (2) and the tool apron (3); the dismounting mechanism is arranged on the inner side of the drill body (1); the discharging mechanism is arranged on the outer side of the drill body (1).

2. The diamond coreless drill of claim 1, wherein: the dismouting mechanism includes: the mounting block (6), the limiting plate (7) and the mounting spring (701) are arranged; the number of the mounting blocks (6) is two, and the two mounting blocks (6) are respectively connected to the inner sides of the upright posts (2) in a sliding manner; the limiting plate (7) is inserted in the middle of the two mounting blocks (6); the mounting spring (701) is fixedly connected to the lower end face of the limiting plate (7), and the lower end of the mounting spring (701) is fixedly connected to the inner side of the lower end of the drill body (1).

3. The diamond coreless drill of claim 2, wherein: the dismouting mechanism still includes: a push plate (8) and a compression spring (9); the plurality of push plates (8) are arranged, and the plurality of push plates (8) are respectively connected to the inner side of the cutter holder (3) in a sliding manner; compression spring (9) are equipped with a plurality ofly, and a plurality of compression spring (9) respectively fixed connection at the up end of a plurality of push pedal (8), and compression spring (9) fixed connection is in the inboard of blade holder (3) upper end.

4. A diamond coreless drill according to claim 3, wherein: the dismouting mechanism still includes: a limiting block (10) and a limiting spring (11); a plurality of limiting blocks (10) are arranged, and the limiting blocks (10) are respectively connected to the inner sides of the tool apron (3) in a sliding manner; the limiting springs (11) are arranged in a plurality of positions, the limiting springs (11) are fixedly connected to the outer sides of the limiting blocks (10) respectively, and the limiting springs (11) are fixedly connected to the inner sides of the tool apron (3).

5. The diamond coreless drill of claim 4, wherein: the dismouting mechanism still includes: a detaching slot (301) and an extension spring (12); the disassembly groove (301) is formed in the inner sides of the upright post (2) and the tool apron (3); the plurality of extension springs (12) are arranged, the extension springs (12) are fixedly connected to the inner sides of the two mounting blocks (6) respectively, and the extension springs (12) are fixedly connected to the inner sides of the stand columns (2).

6. A diamond coreless drill bit as recited in claim 1, wherein: the discharge mechanism comprises: a discharge chute (101); the discharge grooves (101) are arranged in a plurality of numbers, the discharge grooves (101) are respectively arranged on the outer side of the drill body (1), and the discharge grooves (101) are circumferentially arrayed on the outer side of the drill body (1).