CN208267762U - A kind of compound rock drill - Google Patents
A kind of compound rock drill Download PDFInfo
- Publication number
- CN208267762U CN208267762U CN201820359022.0U CN201820359022U CN208267762U CN 208267762 U CN208267762 U CN 208267762U CN 201820359022 U CN201820359022 U CN 201820359022U CN 208267762 U CN208267762 U CN 208267762U
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- China
- Prior art keywords
- rock
- drilling rod
- bit
- drill bit
- drilling
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Abstract
The utility model provides a kind of compound rock drill, including drilling rod, down-the-hole air hammer and rock bit, drilling rod one end is drill bit, down-the-hole air hammer is sheathed on drill bit along the central axis of drilling rod, around drilling rod central axis on drill bit circumferentially arranged multiple rock bit, down-the-hole air hammer is equipped with impactor drill bit, the working face of impactor drill bit along the work direction of advance of drilling rod extension elongation greater than rock bit working face along drilling rod work direction of advance extension elongation；When above-mentioned compound rock drill carries out rock drilling operation, allows impactor bit contact scar first and Drilling goes out the centre bore of small-bore, then rock bit starts the scar contacted around centre bore and carries out Drilling.Compound rock drill provided by the utility model can be realized major diameter depth rock drilling, to improve the efficiency of drilling rock drilling equipment, reduce exploitation energy consumption.
Description
Technical field
The utility model relates to impact drilling apparatus fields, and in particular to a kind of compound rock drill.
Background technique
Development of the mining industry in China is very rapid, and the mining industry output value and the investment of winning equipment were all with 40% speed in recent years
Degree increases, wherein the scale of investment of outdoor ferrous metal ore and nonferrous metals ore is more than 100,000,000,000 yuan.Mining is main
Including three strip mining transformation, underground mining and marine mining parts, wherein strip mining transformation yield accounts for the 60% of mining total amount
More than.
Bore blowing-up method is generallyd use in large surface mine exploitation to be crushed ore.Present mine drilling rock drilling
Equipment mainly includes top hammer formula hydraulic rock drilling machine, down-the-hole drill and rotary drill.And the parameter of blasthole determines the work of drilling machine
Industry efficiency and energy consumption, same blast area, if blasthole diameter increases, blasthole spacing can increase, and can reduce brill in this way
Machine as frequently shift and caused by energy loss；Same blasthole diameter and blasthole spacing, increase blast hole depth, then drilling machine one
The burst size of secondary drilling increases sharply, and equally reduces the energy consumption of drilling machine, improves drilling efficiency.Increase aperture and hole depth, it is right
Drilling rock drilling equipment proposes new challenge.
Therefore, it is necessary to one kind can be realized major diameter depth rock drilling, to improve the efficiency of drilling rock drilling equipment, reduce it
The compound rock drill of energy consumption is exploited to push the development of large-scale mine drilling rock drilling key technology.
Utility model content
The utility model aim is to provide a kind of compound rock drill, and specific technical solution is as follows:
The compound rock drill includes drilling rod, down-the-hole air hammer and rock bit, and described drilling rod one end is drill bit, institute
It states down-the-hole air hammer and is sheathed on the drill bit along the central axis of the drilling rod, the central axis around the drilling rod is described
Circumferentially arranged multiple rock bit on drill bit, the down-the-hole air hammer are equipped with impactor drill bit, the impactor
The working face of drill bit and the working face of the rock bit are towards the work direction of advance of the drilling rod, and the impactor bores
The working face of head is greater than the working face of the rock bit along the brill along the extension elongation of the work direction of advance of the drilling rod
The extension elongation of the work direction of advance of bar.
Preferably, the working face of the rock bit is tilted towards the drilling rod central axis, and the axis of the rock bit
The angle of the central axis of line and the drilling rod is 30 ° to 45 °.
Preferably, the drilling rod include along the drilling rod central axis transition drilling rod that is fixedly connected of series connection and drill bit frame, it is described
Drill bit frame setting is provided with multiple rock bit on the drill bit, the drill bit frame.
Preferably, the first limit sleeve and the second limit sleeve are equipped with for being arranged described dive along central axis inside the drilling rod
Hole impactor, first limit sleeve are arranged far from the impactor drill bit, and second limit sleeve is bored close to the impactor
Head setting.
Preferably, described down-the-hole air hammer one end is equipped with impactor drill bit, and the down-the-hole air hammer other end is equipped with connection
Head drives the down-the-hole air hammer rotation for external drilling tool.
Using the technical solution of the utility model, at least have the advantages that
(1) the utility model is equipped with rock bit and down-the-hole air hammer, and down-the-hole air hammer and gear wheel simultaneously on drilling rod
Drill bit is one in front and one in back arranged, and the impactor drill bit on down-the-hole air hammer is forward, and rock bit rearward, in drilling operation, is impacted
Device drill bit contacts work rock stratum first and Drilling goes out small-bore centre bore, makes drilled rock interior shape by Drilling centre bore
At the scope of freedom, be conducive to the further reaming Drilling of rock bit, improve efficiency of breaking rock, simultaneously because the impact drilling of impactor,
Centre bore surrounding rock is damaged in advance, reduces torque when subsequent rock bit Drilling rock, substantially increases drilling effect
Rate reduces drill tool wear, significantly reduces exploitation energy consumption
(2) angle of the central axis of the axis and drilling rod of rock bit is 30 ° to 45 ° in the utility model, maximum journey
Degree realizes the function of gear wheel Drilling reaming；The drilling rod in the utility model is divided into transition drilling rod and drill bit frame simultaneously, convenient for product
Production molding and assembly.
(3) the utility model is stablized down-the-hole air hammer by setting limit sleeve and is set in inside drilling rod, simple and reliable for structure；
Down-the-hole air hammer one end in the utility model is equipped with connector in order to which external connection power mechanism drives drilling tool rotation simultaneously.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide a further understanding of the present invention, the utility model
Illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.In attached drawing
In:
Fig. 1 is the structural schematic diagram of the compound rock drill of the utility model embodiment 1；
Wherein, 1, rock bit, 2, drilling rod, 2.1, transition drilling rod, 2.2, drill bit frame, 3, down-the-hole air hammer, 3.1, connection
Head, 3.2, impactor drill bit, the 4, first limit sleeve, the 5, second limit sleeve, 6, centre bore.
Specific embodiment
The embodiments of the present invention are described in detail below in conjunction with attached drawing, but the utility model can be according to power
Benefit requires to limit and the multitude of different ways of covering is implemented.
Embodiment 1:
A kind of compound rock drill, referring to Fig. 1, including drilling rod 2, down-the-hole air hammer 3 and rock bit 1, the drilling rod 2
One end is drill bit, and the down-the-hole air hammer 3 is sheathed on the drill bit along the central axis of the drilling rod 2, surrounds the brill
The central axis of bar 2 circumferentially arranged multiple rock bit 1, down-the-hole air hammer 3 on the drill bit are equipped with
Impactor drill bit 3.2, the working face of the impactor drill bit 3.2 and the working face of the rock bit 1 are towards the drilling rod 2
Work direction of advance, and the working face of the impactor drill bit 3.2 is along the extension elongation of the work direction of advance of the drilling rod 2
Greater than the rock bit 1 working face along the drilling rod 2 work direction of advance extension elongation.
The working face of the rock bit 1 is tilted towards 2 central axis of drilling rod, and the axis of the rock bit 1 with
The angle of the central axis of the drilling rod 2 is 30 ° to 45 °.
The drilling rod 2 include along 2 central axis of the drilling rod transition drilling rod 2.1 that is fixedly connected of series connection and drill bit frame 2.2, it is described
The setting of drill bit frame 2.2 is arranged in the drill bit frame 2.2 in the drill bit, multiple rock bit 1.
The first limit sleeve 4 and the second limit sleeve 5 are equipped with for being arranged the down-the-hole punching along central axis inside the drilling rod 2
Device 3 is hit, first limit sleeve 4 is arranged far from one end that the down-the-hole air hammer 3 is equipped with the impactor drill bit 3.2, described
Second limit sleeve 5 is arranged close to one end that the down-the-hole air hammer 3 is equipped with the impactor drill bit 3.2.
Described 3 one end of down-the-hole air hammer is equipped with impactor drill bit 3.2, and 3 other end of down-the-hole air hammer is equipped with connector
3.1 drive the down-the-hole air hammer 3 to rotate for external drilling tool.
When above-mentioned compound rock drill works, external impetus mechanism is connect and pushed to the compound rock drill first
Operating point rotates the drilling rod 2 and the rock bit 1 and the down-the-hole air hammer 3 is driven to rotate；Then it pushes described multiple
Close rock drill forward, the impactor drill bit 3.2 that the down-the-hole air hammer 3 is equipped with contacts scar first and Drilling is small out
The centre bore 6 in aperture；Finally continue to promote the compound rock drill, the rock bit 1 starts to contact scar and be bored
Chisel, forms bigbore drilling around the centre bore 6.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (5)
1. a kind of compound rock drill, which is characterized in that described including drilling rod (2), down-the-hole air hammer (3) and rock bit (1)
Drilling rod (2) one end is drill bit, and the down-the-hole air hammer (3) is sheathed on the drill bit along the central axis of the drilling rod (2),
Around the drilling rod (2) central axis on the drill bit circumferentially arranged multiple rock bit (1), the down-the-hole
Impactor (3) is equipped with impactor drill bit (3.2), the working face of the impactor drill bit (3.2) and the rock bit (1)
Working face is towards the work direction of advance of the drilling rod (2), and the working face of the impactor drill bit (3.2) is along the drilling rod
(2) working face that the extension elongation of work direction of advance is greater than the rock bit (1) advances along the work of the drilling rod (2)
The extension elongation in direction.
2. compound rock drill according to claim 1, which is characterized in that the working face of the rock bit (1) is towards institute
The inclination of drilling rod (2) central axis is stated, and the axis of the rock bit (1) and the angle of the central axis of the drilling rod (2) are
30 ° to 45 °.
3. compound rock drill according to claim 1, which is characterized in that the drilling rod (2) includes along drilling rod (2) center
The transition drilling rod (2.1) and drill bit frame (2.2) that axis series connection is fixedly connected, the drill bit frame (2.2) are arranged in the drill bit,
Multiple rock bit (1) is provided on the drill bit frame (2.2).
4. compound rock drill according to claim 1, which is characterized in that set inside the drilling rod (2) along central axis
There are the first limit sleeve (4) and the second limit sleeve (5) for being arranged the down-the-hole air hammer (3), first limit sleeve (4) is separate
Impactor drill bit (3.2) setting, second limit sleeve (5) are arranged close to the impactor drill bit (3.2).
5. compound rock drill according to claim 1, which is characterized in that described down-the-hole air hammer (3) one end is equipped with punching
It hits device drill bit (3.2), down-the-hole air hammer (3) other end is equipped with connector (3.1) and drives the down-the-hole for external drilling tool
Impactor (3) rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820359022.0U CN208267762U (en) | 2018-03-16 | 2018-03-16 | A kind of compound rock drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820359022.0U CN208267762U (en) | 2018-03-16 | 2018-03-16 | A kind of compound rock drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208267762U true CN208267762U (en) | 2018-12-21 |
Family
ID=64674605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820359022.0U Expired - Fee Related CN208267762U (en) | 2018-03-16 | 2018-03-16 | A kind of compound rock drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208267762U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222841A (en) * | 2018-03-16 | 2018-06-29 | 中南大学 | A kind of compound rock drill and rock drilling method |
| CN111980576A (en) * | 2020-09-27 | 2020-11-24 | 山河智能装备股份有限公司 | Rock-entering reaming drilling tool |
| CN117188973A (en) * | 2023-10-07 | 2023-12-08 | 内蒙古西蒙悦达能源有限公司 | Efficient open pit coal mine down-the-hole punching device and method |
-
2018
- 2018-03-16 CN CN201820359022.0U patent/CN208267762U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222841A (en) * | 2018-03-16 | 2018-06-29 | 中南大学 | A kind of compound rock drill and rock drilling method |
| CN111980576A (en) * | 2020-09-27 | 2020-11-24 | 山河智能装备股份有限公司 | Rock-entering reaming drilling tool |
| CN117188973A (en) * | 2023-10-07 | 2023-12-08 | 内蒙古西蒙悦达能源有限公司 | Efficient open pit coal mine down-the-hole punching device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181221 Termination date: 20200316 |