CN204311992U - A kind of drill pipe positioner for underwater rock plug burst presplitting hole drilling - Google Patents
A kind of drill pipe positioner for underwater rock plug burst presplitting hole drilling Download PDFInfo
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- CN204311992U CN204311992U CN201420730182.3U CN201420730182U CN204311992U CN 204311992 U CN204311992 U CN 204311992U CN 201420730182 U CN201420730182 U CN 201420730182U CN 204311992 U CN204311992 U CN 204311992U
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- connecting reinforcement
- steel tube
- welded
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- semicircle positioning
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Abstract
A kind of drill pipe positioner for underwater rock plug burst presplitting hole drilling, by semicircle positioning steel tube, the anterior connecting reinforcement highly do not waited from low to high, middle part connecting reinforcement, rear portion connecting reinforcement and lower support Plate Welding become the overall skeleton in inclined-plane, three connecting reinforcements are welded on the left end of lower support steel plate, middle-end and right-hand member respectively, and semicircle positioning steel tube is welded on the upper end of three connecting reinforcements.Compatibility of the present utility model is good, in advance in processing factory's processing, can carry out in-site installation easily.During use, this device is placed on need boring pre-ceasma rear portion scar on, the center line making the axis of semicircle positioning steel tube and pre-ceasma point-blank and fixing, the drilling rod of rig is shelved on semicircle positioning steel tube can start above hole.This device installation and removal is simple, convenient, and speed of application is fast, and repeatedly can have enough to meet the need use, not fragile, cost-saving, the precision of boring is high, greatly can improve the quality of boring.
Description
Technical field
Device used when the utility model relates to a kind of presplitting hole drilling of chock blasting under water, when particularly relating to a kind of presplitting hole drilling for underwater rock plug burst, for meeting the precision of presplitting hole drilling, needs the drilling rod of rig to carry out pinpoint device.
Background technology
Hydroelectric project is when carrying out underwater rock plug burst construction, and in order to ensure that the Forming Quality of rock plug mouth reaches designing requirement, when explosion designs, be usually furnished with some pre-ceasmas in all design sidelines, edge of rock plug, the borehole accuracy of this pre-ceasma often requires higher.General Normal practice is after being put by rig and putting in place, adopts measuring apparatus observation, progressively adjusts, then is fixed on by rig on the scaffold set up in advance.In the whole adjustment fixation procedure of rig, measuring apparatus needs to observe all the time, and the time is long, and construction comparatively bothers, and inconvenient operation, and positioning precision is not high.
Summary of the invention
In order to solve the problem, the utility model provide a kind of simple to operate, easy to use, can reuse, when effectively solving underwater rock plug burst construction, the drill pipe positioner of the presplitting hole drilling of borehole accuracy can be guaranteed.
The taked technical measures that solve the problem are:
A kind of drill pipe positioner for underwater rock plug burst presplitting hole drilling, it is characterized in that: by semicircle positioning steel tube 1, the anterior connecting reinforcement 2 highly do not waited from low to high, middle part connecting reinforcement 3 and rear portion connecting reinforcement 4 and lower support steel plate 5 are welded into the overall skeleton in inclined-plane, wherein: anterior connecting reinforcement 2 is welded on the left end of lower support steel plate 5, middle part connecting reinforcement 3 is welded on the middle-end of lower support steel plate 5, rear portion connecting reinforcement 4 is welded on the right-hand member of lower support steel plate 5, semicircle positioning steel tube 1 is welded on anterior connecting reinforcement 2, the upper end of middle part connecting reinforcement 3 and rear portion connecting reinforcement 4.
the beneficial effects of the utility model: compatibility of the present utility model is good, in advance after processing factory processes, can carry out in-site installation easily.During construction, this device is placed on the pre-ceasma rear portion scar of needs boring, through surveying setting-out, make the center line of the axis of the semicircle positioning steel tube 1 of this device and pre-ceasma point-blank, fix with expansion bolt or anchor pole, then the drilling rod of rig is shelved on above semicircle positioning steel tube 1, boring can be started.This device not only installation and removal is simple, convenient, and speed of application is fast, and repeatedly can have enough to meet the need use, not fragile, cost-saving, the precision utilizing this device to carry out holing is high, thus improves the quality of boring.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A cross-sectional view of Fig. 1;
Fig. 3 is the B-B cross-sectional view of Fig. 1;
Fig. 4 is the C-C cross-sectional view of Fig. 1.
In figure: 1. semicircle positioning steel tube, 2. anterior connecting reinforcement, connecting reinforcement 3., 4. rear portion connecting reinforcement, 5. lower support steel plate.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is specifically described.
A kind of drill pipe positioner for underwater rock plug burst presplitting hole drilling, utilize shaped steel to weld to combine, as shown in Figures 1 to 4, by semicircle positioning steel tube 1, the anterior connecting reinforcement 2 highly do not waited from low to high, middle part connecting reinforcement 3 and rear portion connecting reinforcement 4 and lower support steel plate 5 are welded into the overall skeleton in inclined-plane, wherein: anterior connecting reinforcement 2 is welded on the left end of lower support steel plate 5, middle part connecting reinforcement 3 is welded on the middle-end of lower support steel plate 5, rear portion connecting reinforcement 4 is welded on the right-hand member of lower support steel plate 5, semicircle positioning steel tube 1 is welded on anterior connecting reinforcement 2, the upper end of middle part connecting reinforcement 3 and rear portion connecting reinforcement 4.
In the utility model, semicircle positioning steel tube 1 adopts that length is 500mm, diameter is 50mm, thickness is the steel pipe of 3mm, and longitudinally cut open into identical two halves from any diameter of steel pipe along steel pipe, every semi-steel pipe is a semicircle positioning steel tube 1; Anterior connecting reinforcement 2, middle part connecting reinforcement 3 and rear portion connecting reinforcement 4 all adopt diameter to be that II grade of indented bars of 22mm processes.Lower support steel plate 5 adopts that thickness is 10mm, width is 30mm, length is the steel plate of 300mm.After being welded into overall skeleton shown in Fig. 1, namely organize cost apparatus.Pinpoint object is reached for making this device, this apparatus design is become inclined plane shape, that is: by anterior connecting reinforcement 2, middle part connecting reinforcement 3 and rear portion connecting reinforcement 4 are designed to height not etc. from low to high, this is because pre-ceasma is angled with the scar of tunnel below, this device is placed on the pre-ceasma rear portion scar of needs boring, the axis needs of semicircle positioning steel tube 1 and the center line of the pre-ceasma that will hole are point-blank, like this, the drilling rod of rig is shelved on semicircle positioning steel tube 1 above after, the direction of boring could be consistent with the direction of intending boring pre-ceasma, play pinpoint effect.
During use, this device is placed on the pre-ceasma rear portion scar of needs boring, the particular location of this device is adjusted by surveying setting-out, the axis making the semicircle positioning steel tube 1 of this device and the center line of pre-ceasma that will hole are point-blank, then with expansion bolt or anchor pole by this device fixation, namely complete the installation of this device.During boring, the drilling rod of rig is shelved on above semicircle positioning steel tube 1, the boring of pre-ceasma can be started.
Claims (1)
1. the drill pipe positioner for underwater rock plug burst presplitting hole drilling, it is characterized in that: by semicircle positioning steel tube (1), the anterior connecting reinforcement (2) highly do not waited from low to high, middle part connecting reinforcement (3), rear portion connecting reinforcement (4) and lower support steel plate (5) are welded into the overall skeleton in inclined-plane, wherein: anterior connecting reinforcement (2) is welded on the left end of lower support steel plate (5), middle part connecting reinforcement (3) is welded on the middle-end of lower support steel plate (5), rear portion connecting reinforcement (4) is welded on the right-hand member of lower support steel plate (5), semicircle positioning steel tube (1) is welded on anterior connecting reinforcement (2), the upper end of middle part connecting reinforcement (3) and rear portion connecting reinforcement (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420730182.3U CN204311992U (en) | 2014-11-26 | 2014-11-26 | A kind of drill pipe positioner for underwater rock plug burst presplitting hole drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420730182.3U CN204311992U (en) | 2014-11-26 | 2014-11-26 | A kind of drill pipe positioner for underwater rock plug burst presplitting hole drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204311992U true CN204311992U (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420730182.3U Active CN204311992U (en) | 2014-11-26 | 2014-11-26 | A kind of drill pipe positioner for underwater rock plug burst presplitting hole drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204311992U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405309A (en) * | 2014-11-26 | 2015-03-11 | 中国水利水电第六工程局有限公司 | Drill rod positioning device for drilling underwater rockplug blasting presplitting hole |
| CN106522841A (en) * | 2016-08-26 | 2017-03-22 | 中国黄金集团内蒙古矿业有限公司 | Presplit hole drilling method |
| CN108590537A (en) * | 2018-04-26 | 2018-09-28 | 中国水利水电第四工程局有限公司 | The quick-fried borehole accuracy of light controls fixed structure |
-
2014
- 2014-11-26 CN CN201420730182.3U patent/CN204311992U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405309A (en) * | 2014-11-26 | 2015-03-11 | 中国水利水电第六工程局有限公司 | Drill rod positioning device for drilling underwater rockplug blasting presplitting hole |
| CN106522841A (en) * | 2016-08-26 | 2017-03-22 | 中国黄金集团内蒙古矿业有限公司 | Presplit hole drilling method |
| CN108590537A (en) * | 2018-04-26 | 2018-09-28 | 中国水利水电第四工程局有限公司 | The quick-fried borehole accuracy of light controls fixed structure |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |