CN212317858U

CN212317858U - Down-the-hole drill bit capable of improving working efficiency

Info

Publication number: CN212317858U
Application number: CN202020600886.4U
Authority: CN
Inventors: 蔡永奎
Original assignee: Wuxi Beijiaer Technology Co ltd
Current assignee: Qiao Lei
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2021-01-08
Anticipated expiration: 2030-04-21

Abstract

The utility model relates to the technical field of tools, in particular to a down-the-hole drill bit capable of improving the working efficiency, which comprises a drill bit main body, a shaft main body and an alloy tool bit, wherein the right end of the drill bit main body is fixedly connected with the alloy tool bit, the interior of the drill bit main body is provided with a clamping groove which is distributed up and down, a clamping block is connected inside the clamping groove in a sliding way, the lower end of the clamping block is fixedly connected with a first spring, the other end of the first spring is fixedly connected with a positioning shaft, and the right end of the positioning shaft is fixedly connected with a hexagonal block, in the utility model, when the sliding block is pushed open by water pressure, water can automatically flow into a water guide pipe to cool the interior and clean the exterior, when the external pressure is higher than the water pressure, the sliding block is driven by a second spring, a rubber ring contacts the retaining ring, thereby preventing the backflow of the slurry, protecting the interior of the impactor from being damaged and being worth popularizing.

Description

Down-the-hole drill bit capable of improving working efficiency

Technical Field

The utility model relates to an instrument technical field specifically is a can improve work efficiency's down-the-hole drill bit.

Background

The down-the-hole drill bit, the product is divided into two major series down-the-hole drill bits of high wind pressure, low wind pressure, adopt the high-quality raw materials, through the advanced production technology, produce the high-quality series down-the-hole drill bit, is used in earthwork engineering, mining, well drilling, building engineering, etc. extensively, the high wind pressure down-the-hole drill bit now, the end face design form that adopts at present mainly is four: namely, the end surface convex type, the end surface plane type, the end surface concave type and the end surface deep concave center type, and the hard alloy mostly adopts spherical teeth, elastic teeth or a tooth arrangement mode shared by the spherical teeth and the elastic teeth.

The existing down-the-hole drill bit, whether a high-wind pressure drill bit or a low-wind pressure drill bit, does not consider the measure of preventing underground water-containing silt mixture from backflushing into the impactor when the drilling operation is carried out under the water-containing geological condition, so that when the existing down-the-hole drill bit is used under the actual water-containing geological condition, underground silt, broken rock slag and water are mixed to form slurry which can enter the impactor through a water channel of the drill bit, and the abrasion, blockage and the like of a piston and a cylinder which do high-speed and high-frequency relative motion are caused, so that the impactor does not work, the service efficiency of the impactor is seriously influenced, and the down-the-hole drill bit capable of improving the working efficiency is provided aiming.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can improve work efficiency's down-the-hole drill bit to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a down-the-hole drill bit capable of improving working efficiency comprises a drill bit body, a shaft body and an alloy tool bit, wherein the alloy tool bit is fixedly connected to the right end of the drill bit body, clamping grooves which are distributed up and down are formed in the drill bit body, clamping blocks which are distributed up and down are connected to the drill bit body in a sliding mode through the clamping grooves, a first spring is fixedly connected to the lower end of each clamping block, a positioning shaft is fixedly connected to the other end of each first spring, a hexagonal block is fixedly connected to the right end of each positioning shaft, a shaft body is fixedly connected to the other end of each hexagonal block, a water inlet groove is formed in the right side of the shaft body, a sliding block is slidably connected to the inside of the shaft body, a second spring is fixedly connected to the inside of each sliding block, the shaft body is fixedly connected to the other end of, and the outer part of the retainer ring is fixedly connected with the shaft part main body.

Preferably, a water outlet pipe is arranged inside the right end of the drill bit main body.

Preferably, fixed pipe has been seted up on the intake antrum right side, and fixed intraduct sliding connection has the second spring, the stand pipe has been seted up on fixed pipe right side, and the stand pipe runs through axial region main part, hexagonal piece and location axle.

Preferably, the number of the first springs is two, and the upper ends of the first springs are fixedly connected with the clamping blocks.

Preferably, the cross section of the hexagonal block is in the shape of a regular hexagon.

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

1. in the utility model, through the first spring, the fixture block and the clamping groove, when the drill bit main body is clamped into the positioning shaft, the first spring bounces to drive the fixture block in the clamping groove to clamp and fix the drill bit main body, and the drill bit main body is positioned through the arranged hexagonal block to prevent the drill bit main body from rotating, thereby facilitating disassembly, meanwhile, only the part of the drill bit main body needs to be replaced when replacing, and the undamaged shaft main body does not need to be replaced, thereby saving time, saving cost and being worth popularizing;

2. the utility model discloses in, through the sliding block that sets up, second spring and retaining ring, when water pressure backs down the sliding block, water just can the automatic flow in the aqueduct, cools off inside to wash the outside, when external pressure is greater than water pressure, the sliding block is driven by the second spring, and rubber circle contact retaining ring is closed the mud of backward flow, thereby prevents the rivers backward flow, protects the inside damage that does not receive of impacter, is worth wideling popularize.

Drawings

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

FIG. 2 is a schematic structural view of the shaft portion main body of the present invention;

fig. 3 is a schematic structural view of the hexagonal block of the present invention.

In the figure: the drilling tool comprises a water outlet pipe 1, an alloy cutter head 2, a drill bit body 3, a positioning shaft 4, a clamping block 5, a first spring 6, a guide pipe 7, a hexagonal block 8, a shaft body 9, a second spring 10, a sliding block 11, a rubber block 12, a water inlet groove 13, a check ring 14, a water hole 15, a fixing pipe 16 and a clamping groove 17.

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.

Please refer to fig. 1-3, the present invention provides a technical solution:

a down-the-hole drill bit capable of improving working efficiency comprises a drill bit body 3, a shaft body 9 and an alloy tool bit 2, wherein the alloy tool bit 2 is fixedly connected to the right end of the drill bit body 3, clamping grooves 17 which are distributed up and down are formed in the drill bit body 3, a clamping block 5 is slidably connected in each clamping groove 17, a first spring 6 is fixedly connected to the lower end of each clamping block 5, a positioning shaft 4 is fixedly connected to the other end of each first spring 6, a hexagonal block 8 is fixedly connected to the right end of each positioning shaft 4, a shaft body 9 is fixedly connected to the other end of each hexagonal block 8, a water inlet groove 13 is formed in the right side of each shaft body 9, a sliding block 11 is slidably connected in each shaft body 9, a second spring 10 is fixedly connected in each sliding block 11, the shaft body 9 is fixedly connected to the other end of each second spring 10, a rubber, and the shaft body 9 is fixedly connected to the outside of the retainer ring 14.

A water outlet pipe 1 is arranged in the right end of the drill bit main body 3, so that the drill bit main body 3 can be conveniently cooled and the outside can be conveniently cleaned; a fixed pipe 16 is arranged on the right side of the water inlet groove 13, a second spring 10 is connected inside the fixed pipe 16 in a sliding mode, a guide pipe 7 is arranged on the right side of the fixed pipe 16, the guide pipe 7 penetrates through the shaft part main body 9, the hexagonal block 8 and the positioning shaft 4, water entering from the water inlet groove 13 can conveniently enter the water outlet pipe 1, and the drill bit main body 3 can be cooled and the outside can be cleaned conveniently; the number of the first springs 6 is two, and the upper ends of the first springs 6 are fixedly connected with the fixture blocks 5, so that the fixture blocks 5 can better fix the drill bit main body 3; the cross section of the hexagonal block 8 is in a regular hexagon shape, so that the drill bit body 3 is prevented from rotating during working, and the drill bit body 3 is better fixed.

The working process is as follows: the drill bit main part 3 that will have alloy tool bit 2 pushes into location axle 4 outsidely, under the flexible effect through first spring 6 and fixture block 5, fix drill bit main part 3, the hexagonal piece 8 of rethread setting is fixed a position drill bit main part 3, prevent that drill bit main part 3 from droing at the during operation rotation, cause danger, second spring 10 through setting up drives slider 11, thereby drive rubber ring 12, and retaining ring 14 that sets up carries out backflow prevention control to the water that enters into intake chamber 13, water pressure is after pushing away second spring 10, rivers get into in stand pipe 7, thereby get into delivery port 1 in, carry out the water-cooling and wash to the outside to drill bit main part 3, when external pressure is greater than water pressure, drive slider 11 through second spring 10 and kick-back, prevent the backward flow to muddy water, thereby the protection impacter does not receive the damage.

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

1. The utility model provides a can improve work efficiency's down-the-hole drill, includes drill bit main part (3), axial part main part (9) and alloy cutter head (2), its characterized in that: the alloy cutter head (2) is fixedly connected to the right end of the drill bit main body (3), the clamping grooves (17) which are distributed up and down are formed in the drill bit main body (3), the drill bit main body (3) is connected with the clamping blocks (5) which are distributed up and down in a sliding mode through the clamping grooves (17), the first spring (6) is fixedly connected to the lower end of the clamping block (5), the positioning shaft (4) is fixedly connected to the other end of the first spring (6), the hexagonal block (8) is fixedly connected to the right end of the positioning shaft (4), the shaft main body (9) is fixedly connected to the other end of the hexagonal block (8), the water inlet groove (13) is formed in the right side of the shaft main body (9), the sliding block (11) is connected to the inside of the shaft main body (9) in a sliding mode, the second spring (10) is fixedly connected to the inside of the, sliding block (11) right-hand member fixedly connected with block rubber (12), block rubber (12) upper end right side is equipped with retaining ring (14), and retaining ring (14) outside fixedly connected with axial region main part (9).

2. A down-the-hole drill bit capable of improving working efficiency according to claim 1, wherein: the drill bit main body (3) is internally provided with a water outlet pipe (1) at the right end.

3. A down-the-hole drill bit capable of improving working efficiency according to claim 1, wherein: fixed pipe (16) have been seted up on intake antrum (13) right side, and fixed pipe (16) inside sliding connection has second spring (10), fixed pipe (16) right side is seted up some stand pipes (7), and stand pipe (7) run through axial region main part (9), hexagonal piece (8) and location axle (4).

4. A down-the-hole drill bit capable of improving working efficiency according to claim 1, wherein: the number of the first springs (6) is two, and the upper ends of the first springs (6) are fixedly connected with the clamping blocks (5).

5. A down-the-hole drill bit capable of improving working efficiency according to claim 1, wherein: the cross section of the hexagonal block (8) is in a shape of a regular hexagon.