CN204609758U - A kind of modified down-the-hole drill - Google Patents
A kind of modified down-the-hole drill Download PDFInfo
- Publication number
- CN204609758U CN204609758U CN201520321233.1U CN201520321233U CN204609758U CN 204609758 U CN204609758 U CN 204609758U CN 201520321233 U CN201520321233 U CN 201520321233U CN 204609758 U CN204609758 U CN 204609758U
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- drill
- rig
- steel
- positioner
- rig bracket
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Abstract
A kind of modified down-the-hole drill, comprise drill main body, drill main body is connected with rig bracket, rig bracket is connected with fixed support, be provided with drill steel in rig bracket bottom and help positioner, drill steel helps positioner to be fixedly connected with rig bracket, helps on the location-plate of positioner be provided with the locating hole of diameter slightly larger than drill steel at drill steel, fixed support adopts steel pipe to make, and is welded on the outside of rig bracket.A kind of modified down-the-hole drill that the utility model provides, by setting up steel pipe fixed support, realizes rig and steel pipe sample frame is directly connected and fixed, and increases rig stability, improves boring progress; Set up bore bit in rig bracket bottom and help positioner, when solving boring, drill bit " runs and bores " phenomenon, improves borehole accuracy.
Description
Technical field
The utility model relates to the improvement to down-the-hole drill, is specifically related to one and is applicable to utilize steel pipe sample frame to implement the bore operation of presplitting (or light face) explosion, can improve borehole accuracy, easily process, modified down-the-hole drill easy to use.
Background technology
In engineering construction, often adopt 100B type down-the-hole drill to carry out presplit blasting or smooth blasting boring, for ensureing borehole accuracy, usually taking to set up steel pipe sample frame mode and fix rig and form guiding.100B type rig bracket is that channel-section steel processes, and can not directly be connected and fixed with steel pipe sample frame; In addition, 100B rig impactor and puncheon centralizing device when holing is distant, very easily occurs " running brill " phenomenon, affects borehole accuracy.
Summary of the invention
Technical problem to be solved in the utility model is to provide one can improve borehole accuracy, easy to use can directly and steel pipe sample frame be connected and fixed, and be provided with the modified down-the-hole drill that bore bit helps positioner.
The technical scheme that the utility model adopts is: a kind of modified down-the-hole drill, comprise drill main body, drill main body is connected with rig bracket, rig bracket is connected with fixed support, be provided with drill steel in rig bracket bottom and help positioner, drill steel helps positioner to be fixedly connected with rig bracket, helps on the location-plate of positioner be provided with the locating hole of diameter slightly larger than drill steel at drill steel.
Fixed support adopts steel pipe to make, and is welded on the outside of rig bracket.
A kind of modified down-the-hole drill that the utility model provides, by setting up steel pipe fixed support, realizes rig and steel pipe sample frame is directly connected and fixed, and increases rig stability, improves borehole accuracy; Set up bore bit in rig bracket bottom and help positioner, when solving boring, drill bit " runs and bores " phenomenon, improves borehole accuracy.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is overall structure elevational schematic view of the present utility model.
Fig. 2 is the A-A direction view of Fig. 1.
Fig. 3 is the B-B direction view of Fig. 1.
Fig. 4 is use schematic diagram of the present utility model.
In figure: fixed support 1, drill steel helps positioner 2, rig bracket 3, air motor 4, puncheon centralizing device 5, drill steel 6, impactor 7, and air motor controls assembly 8, steel pipe sample frame 9, boring 10.
Detailed description of the invention
Structure of the present utility model is as Figure 1-4: a kind of modified down-the-hole drill, comprise drill main body, drill main body is connected with rig bracket 3, rig bracket 3 is connected with fixed support 1, be provided with drill steel in rig bracket 3 bottom and help positioner 2, drill steel helps positioner 2 to be fixedly connected with rig bracket 3, helps on the location-plate 2-1 of positioner 2 be provided with the locating hole of diameter slightly larger than drill steel 6 at drill steel.Fixed support 1 adopts steel pipe to make, and is welded on the outside of rig bracket 3.
Operating principle of the present utility model is as follows:
1, according to constructure scheme through surveying and locating, set up boring steel pipe sample frame 9, after need considering when steel pipe sample frame 9 is set up that steel pipe fixed support 1 and the cross bar of steel pipe sample frame 9 adopt fastener to be connected and fixed, can ensure drill steel 6 and impactor 7 corresponding with the position, boring 10 hole designed.
2, steel pipe sample frame 9 should carry out measurement and checks after having set up, confirm errorless after can by the rod member reinforcement by connection of the steel pipe fixed support 1 of this modified down-the-hole drill with steel pipe sample frame 9.
3, after confirming the boring 10 hole position dead in line of rig drill steel 6 and impactor 7 and setting-out in advance, rig can be started and implement boring.
Claims (2)
1. a modified down-the-hole drill, comprise drill main body, it is characterized in that: drill main body is connected with rig bracket (3), rig bracket (3) is connected with fixed support (1), be provided with drill steel in rig bracket (3) bottom and help positioner (2), drill steel helps positioner (2) to be fixedly connected with rig bracket (3), helps on the location-plate (2-1) of positioner (2) be provided with the locating hole of diameter slightly larger than drill steel (6) at drill steel.
2. modified down-the-hole drill according to claim 1, is characterized in that: fixed support (1) adopts steel pipe to make, and is welded on the outside of rig bracket (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520321233.1U CN204609758U (en) | 2015-05-19 | 2015-05-19 | A kind of modified down-the-hole drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520321233.1U CN204609758U (en) | 2015-05-19 | 2015-05-19 | A kind of modified down-the-hole drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204609758U true CN204609758U (en) | 2015-09-02 |
Family
ID=53962329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520321233.1U Active CN204609758U (en) | 2015-05-19 | 2015-05-19 | A kind of modified down-the-hole drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204609758U (en) |
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2015
- 2015-05-19 CN CN201520321233.1U patent/CN204609758U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |