CN208168816U - A kind of impactor drill bit connection structure and down-the-hole drill - Google Patents
A kind of impactor drill bit connection structure and down-the-hole drill Download PDFInfo
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- CN208168816U CN208168816U CN201820727114.XU CN201820727114U CN208168816U CN 208168816 U CN208168816 U CN 208168816U CN 201820727114 U CN201820727114 U CN 201820727114U CN 208168816 U CN208168816 U CN 208168816U
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- Prior art keywords
- drill bit
- impactor
- drill
- card
- connection structure
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- 238000005553 drilling Methods 0.000 claims abstract description 13
- 238000006073 displacement reaction Methods 0.000 claims abstract description 6
- 125000006850 spacer group Chemical group 0.000 claims description 12
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 7
- 239000011435 rock Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Abstract
The application discloses a kind of impactor drill bit connection structure, including：The card drill sleeve being installed on impactor outer shell；Through the drill bit of card drill sleeve；The limiting slot being opened at drill bit spline position；Limiting slot is slot end lug boss close to the side of drilling machine inner piston；Position limiting structure in the space that card drill sleeve and limiting slot are formed, for the displacement of restraint slot end lug boss.Compared with prior art, impactor drill bit connection structure provided by the utility model has well solved the problem of drill bit difficulty disassembly, and prevents damage parts caused by drill bit disassembly process, considerably improves the service life of product, reduces operating cost.The application also provides a kind of down-the-hole drill, is likewise supplied with above-mentioned beneficial effect.
Description
Technical field
This application involves mine mechanism technical fields, more specifically, in particular to a kind of impactor drill bit connection
Structure, the application further relate to a kind of down-the-hole drill.
Background technique
Down-the-hole drill is widely used in the engineering explosions bore operation such as metallurgy, coal, building materials, railway, construction of hydropower facilities, with
Common rock drill is compared, and has the characteristics that drilling is deep, bore diameter is big, drilling efficiency is high, wide adaptation range, is current general
Large-scale rock drilling drilling device.
Drill bit and down-the-hole air hammer are the important composition parts of down-the-hole drill, down-the-hole air hammer be used primarily in mine blasting,
The apertures operation such as well, chamber does work before and after entering impactor by the compressed air that air compressor machine provides high pressure, generates piston high
The reciprocating motion of speed realizes broken rock eventually by the carbide button above drill bit, produced rock slag is again by rushing to hit drill bit afterbody
The high pressure gas blowout bottom hole for hitting device discharge, finally realizes pore-forming.
For current down-the-hole drill, drill bit is fixed on down-the-hole air hammer by drill bit by snap ring and card drill sleeve, is blocked
Drill sleeve, using being threadedly coupled and fastening, if necessary to more bit change, then must back out card drill sleeve with drilling machine outer shell from outer shell
Come, then drill bit is taken out out of card drill sleeve, when due to impactor work, when drilling machine works otherwise stalling is dynamic, can make card drill sleeve
It is connect with outer shell very tight, card drill sleeve is caused to be difficult to dismantle, operator generallys use the modes such as hammering outer shell and heating energetically and comes
It is dismantled, so takes a lot of work laborious, and outer shell is be easy to cause to damage, not only influence construction speed, but also increase cost.
Therefore it provides a kind of impactor drill bit connection structure, can be realized the quick-replaceable of drill bit, construction efficiency is improved；
Meanwhile being avoided that disassembly process causes the damage of impactor part, product service life is improved, cost is reduced, has become this
Field technical staff technical problem urgently to be resolved.
Utility model content
In order to solve the above technical problems, can be realized drill bit this application provides a kind of impactor drill bit connection structure
Quick-replaceable improves construction efficiency；Meanwhile being avoided that disassembly process causes the damage of impactor part, it improves product and uses the longevity
Life, reduces cost.The application also provides a kind of down-the-hole drill, is likewise supplied with above-mentioned beneficial effect.
Technical solution provided by the present application is as follows：
A kind of impactor drill bit connection structure, including：The card drill sleeve being installed on impactor outer shell；Through card drill sleeve
Drill bit；The limiting slot being opened at drill bit spline position；Limiting slot is slot end lug boss close to the side of drilling machine inner piston；It is set to
Position limiting structure in the space that card drill sleeve and limiting slot are formed, for the displacement of restraint slot end lug boss.
Further, in a kind of preferred mode of the utility model, position limiting structure is specially spacer pin.
Further, in a kind of preferred mode of the utility model, position limiting structure both ends are provided with sticking department, sticking department
For position limiting structure to be locked in space.
Further, in a kind of preferred mode of the utility model, sticking department is specially split pin.Further, exist
In a kind of preferred mode of the utility model, position limiting structure is specially spacer pin, and spacer pin both ends are detachably provided with split pin.
Further, in a kind of preferred mode of the utility model, card drill sleeve be installed on impactor outer shell specifically,
Card drill sleeve is connected through a screw thread with impactor outer shell and is fastened.
Further, in a kind of preferred mode of the utility model, the length of limiting slot is greater than the 1/5 of the length of the bit,
Less than the 3/8 of the length of the bit.
A kind of down-the-hole drill, including impactor drill bit connection structure as described above.
The utility model provides a kind of impactor drill bit connection structure, wherein is equipped with card drill sleeve on impactor outer shell, bores
Head opens up limiting slot through card drill sleeve at drill bit spline position, limiting slot is that slot end is convex close to the side of drilling machine inner piston
The position limiting structure for the displacement of restraint slot end lug boss is equipped in the space that the portion of rising, card drill sleeve and limiting slot are formed.Work as brill
When head installation, woth no need to dismantle card drill sleeve, it is only necessary to drill bit is inserted into card drill sleeve, position limiting structure is placed into, by position limiting structure
Drill bit, which is not fallen off, can guarantee to the displacement restriction effect of slot end lug boss on drill bit, when drill bit is dismantled, without disassembly card drill sleeve,
Position limiting structure only need to be taken out, then drill bit is taken out out of card drill sleeve, in this way, having well solved asking for drill bit difficulty disassembly
Topic, and prevents damage parts caused by drill bit disassembly process, considerably improves the service life of product, reduce operation at
This.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is impactor drill bit connection structure schematic diagram provided by the embodiment of the utility model；
Fig. 2 is the schematic diagram of impactor drill bit connection structure in the prior art.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution in the application, below in conjunction with the application reality
The technical scheme in the embodiment of the application is clearly and completely described for the attached drawing for applying in example, it is clear that described embodiment
Only a part of the embodiment of the application, instead of all the embodiments.Based on the embodiment in the application, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model of the application protection
It encloses.
Please as shown in Fig. 1 to 2, the embodiment of the present application provides a kind of impactor drill bit connection structure, including：It is installed on impact
Card drill sleeve 2 on device outer shell 6；Through the drill bit 1 of card drill sleeve 2；The limiting slot 3 being opened at 1 spline position of drill bit；Limiting slot
3 close to the side of drilling machine inner piston 8 be slot end lug boss 5；In the space that card drill sleeve 2 and limiting slot 3 are formed, it is used for
The position limiting structure 4 that restraint slot end lug boss 5 is displaced.
Currently, specific as shown in Fig. 2, be the installation fixed form of down-hole drill head 1 in the prior art, drill bit 1 according to
Drill bit 1 is fixed on down-the-hole air hammer by snap ring 7 and card drill sleeve 2, card drill sleeve 2, using being threadedly coupled and fastening, is dived with outer shell 6
Impactor matched drill bit 1 in hole after a certain period of use time, needs replacing or removes reconditioning alloy, and conventional bit 1 is to pass through card
Ring 7 and card drill sleeve 2 are fixed on above down-the-hole air hammer, and more bit change 1 must dismantle card drill sleeve 2, when due to impactor work,
When drilling machine works otherwise stalling is dynamic, card drill sleeve 2 can be made to connect with outer shell 6 very tight, cause card drill sleeve 2 to be difficult to dismantle, cause to bore
First 1 replacement is difficult, delays construction period, increases construction cost.
A kind of impactor drill bit connection structure provided by the embodiment of the utility model, compared with prior art, including：Impact
Card drill sleeve 2 is installed, drill bit 1 opens up limiting slot 3, limiting slot through card drill sleeve 2, and at 1 spline position of drill bit on device outer shell 6
3 close to the side of drilling machine inner piston 8 be slot end lug boss 5, and the space that card drill sleeve 2 and limiting slot 3 are formed is interior equipped with being used for
The position limiting structure 4 that restraint slot end lug boss 5 is displaced.When drill bit installation, woth no need to dismantle card drill sleeve 2, it is only necessary to which drill bit to be inserted into
In card drill sleeve 2, position limiting structure 4 is placed into, can be protected by displacement restriction effect of the position limiting structure 4 to slot end lug boss 5 on drill bit 1
Card drill bit 1 is not fallen off, and when drill bit is dismantled, without disassembly card drill sleeve 2, need to only take out position limiting structure 4, then will bore 1 from card drill sleeve 2
Inside take out, in this way, the problem of having well solved the disassembly of drill bit difficulty, and prevent part caused by drill bit disassembly process from damaging
It is bad, the service life of product is considerably improved, operating cost is reduced.
Specifically, in the utility model embodiment, position limiting structure 4 is specially spacer pin.
In the utility model embodiment, 4 both ends of position limiting structure are provided with sticking department, and sticking department is for locking position limiting structure 4
Due in space.
Specifically, in the utility model embodiment, sticking department is specially split pin.
In the utility model embodiment, position limiting structure 4 is specially spacer pin, and spacer pin both ends are detachably provided with opening
Pin.
In the utility model embodiment, card drill sleeve 2 is installed on impactor outer shell 6 specifically, outside card drill sleeve 2 and impactor
Cylinder 6, which is connected through a screw thread, to be fastened.
Specifically, in the utility model embodiment, the length of limiting slot 3 is greater than the 1/5 of 1 length of drill bit, is less than drill bit 1
The 3/8 of length.
In impactor drill bit connection structure provided in this embodiment, is designed, bored by changing impactor and drill bit structure
Headdress flower key increases limiting slot 3 and designs, and impactor increases spacer pin and split pin, cancels snap ring 7, when drill bit is installed, without disassembly
Drill bit need to only be inserted into card drill sleeve 2, place into spacer pin, split pin is then packed into spacer pin fixation hole infolding by card drill sleeve 2
It is curved, it can guarantee that drill bit is not fallen off by the position-limiting action of spacer pin, when drill bit is dismantled, without disassembly card drill sleeve 2, it is only necessary to
First split pin is taken to move toward straightening, and take out split pin and spacer pin, then drill bit is taken out out of card drill sleeve 2, by impactor
With the design at drill bit connection structure, the problem of drill bit difficulty is dismantled is well solved, can be realized impactor and drill bit quick change
Function, and damage parts caused by preventing in disassembly process, improve life of product, reduce construction cost.
The utility model embodiment also provides a kind of down-the-hole drill, including impactor drill bit connection structure as described above,
It is likewise supplied with above-mentioned beneficial effect.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (8)
1. a kind of impactor drill bit connection structure, which is characterized in that including：
The card drill sleeve being installed on impactor outer shell；
Through the drill bit of the card drill sleeve；
The limiting slot being opened at drill bit spline position；
The limiting slot is slot end lug boss close to the side of drilling machine inner piston；
In the space that the card drill sleeve and the limiting slot are formed, for constraining the limit of slot end lug boss displacement
Bit architecture.
2. impactor drill bit connection structure according to claim 1, which is characterized in that the position limiting structure is specially to limit
Pin.
3. impactor drill bit connection structure according to claim 1, which is characterized in that the position limiting structure both ends are provided with
Sticking department, the sticking department is for the position limiting structure to be locked in the space.
4. impactor drill bit connection structure according to claim 3, which is characterized in that the sticking department is specially to be open
Pin.
5. impactor drill bit connection structure according to claim 1, which is characterized in that the position limiting structure is specially to limit
Pin, the spacer pin both ends are detachably provided with split pin.
6. impactor drill bit connection structure according to claim 1, which is characterized in that the card drill sleeve is installed on impactor
Specifically, the card drill sleeve is connected through a screw thread with impactor outer shell and is fastened on outer shell.
7. impactor drill bit connection structure according to claim 1, which is characterized in that the length of the limiting slot is greater than institute
The 1/5 of the length of the bit is stated, less than the 3/8 of the length of the bit.
8. a kind of down-the-hole drill, which is characterized in that connected including impactor drill bit as claimed in any one of claims 1 to 7
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820727114.XU CN208168816U (en) | 2018-05-09 | 2018-05-09 | A kind of impactor drill bit connection structure and down-the-hole drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820727114.XU CN208168816U (en) | 2018-05-09 | 2018-05-09 | A kind of impactor drill bit connection structure and down-the-hole drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208168816U true CN208168816U (en) | 2018-11-30 |
Family
ID=64366887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820727114.XU Active CN208168816U (en) | 2018-05-09 | 2018-05-09 | A kind of impactor drill bit connection structure and down-the-hole drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208168816U (en) |
-
2018
- 2018-05-09 CN CN201820727114.XU patent/CN208168816U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Impacter drill bit connection structure and down -hole drill Effective date of registration: 20191205 Granted publication date: 20181130 Pledgee: Bank of Communications Co.,Ltd. Hunan Branch Pledgor: CHANGSHA HEIJINGANG INDUSTRIAL Co.,Ltd. Registration number: Y2019980000872 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20201224 Granted publication date: 20181130 Pledgee: Bank of Communications Co.,Ltd. Hunan Branch Pledgor: CHANGSHA HEIJINGANG INDUSTRIAL Co.,Ltd. Registration number: Y2019980000872 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: The utility model relates to a connecting structure of an impactor bit and a down the hole drill Effective date of registration: 20210107 Granted publication date: 20181130 Pledgee: Bank of Communications Co.,Ltd. Hunan Branch Pledgor: CHANGSHA HEIJINGANG INDUSTRIAL Co.,Ltd. Registration number: Y2021980000126 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20211221 Granted publication date: 20181130 Pledgee: Bank of Communications Co.,Ltd. Hunan Branch Pledgor: CHANGSHA HEIJINGANG INDUSTRIAL Co.,Ltd. Registration number: Y2021980000126 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Connecting structure of impactor bit and down the hole drill Effective date of registration: 20211229 Granted publication date: 20181130 Pledgee: Bank of Communications Co.,Ltd. Hunan Branch Pledgor: CHANGSHA HEIJINGANG INDUSTRIAL Co.,Ltd. Registration number: Y2021430000102 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20221226 Granted publication date: 20181130 Pledgee: Bank of Communications Co.,Ltd. Hunan Branch Pledgor: CHANGSHA HEIJINGANG INDUSTRIAL Co.,Ltd. Registration number: Y2021430000102 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A connecting structure of impactor bit and down-the-hole drill Effective date of registration: 20221229 Granted publication date: 20181130 Pledgee: Bank of Communications Co.,Ltd. Hunan Branch Pledgor: CHANGSHA HEIJINGANG INDUSTRIAL Co.,Ltd. Registration number: Y2022980029683 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231221 Granted publication date: 20181130 Pledgee: Bank of Communications Co.,Ltd. Hunan Branch Pledgor: CHANGSHA HEIJINGANG INDUSTRIAL Co.,Ltd. Registration number: Y2022980029683 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A connecting structure of an impactor drill bit and a down hole drilling rig Effective date of registration: 20231226 Granted publication date: 20181130 Pledgee: Bank of Communications Co.,Ltd. Hunan Branch Pledgor: CHANGSHA HEIJINGANG INDUSTRIAL Co.,Ltd. Registration number: Y2023980074659 |
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