CN203296676U - Combined down-hole hammer drilling tool - Google Patents
Combined down-hole hammer drilling tool Download PDFInfo
- Publication number
- CN203296676U CN203296676U CN2013202542621U CN201320254262U CN203296676U CN 203296676 U CN203296676 U CN 203296676U CN 2013202542621 U CN2013202542621 U CN 2013202542621U CN 201320254262 U CN201320254262 U CN 201320254262U CN 203296676 U CN203296676 U CN 203296676U
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- Prior art keywords
- hole hammer
- open type
- drilling rod
- type down
- hole
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Abstract
The utility model relates to a combined down-hole hammer drilling tool. The combined down-hole hammer drilling tool comprises an open type down-hole hammer and a multi-layer toothed threaded drill pipe, wherein the open type down-hole hammer and the multi-layer toothed threaded drill pipe are fixed together through a hinge pin and a sealing gasket. The impactor of the open type down-hole hammer is in the form of a hollow impactor. The multi-layer toothed threaded drill pipe is composed of a drill pipe outer tube and a drill pipe inner tube, and the drill pipe outer tube is provided with an air feed pipe. A movable bottom door capable of being closed is arranged at the bottom of the open type down-hole hammer. Reaming blocks are arranged on the side surface of the open type down-hole hammer. A pressure air supply hole and a high-pressure exhaust and slag-removing groove are disposed in the open type down-hole hammer. The combined down-hole hammer drilling tool is simple in structure and convenient in operation. Due to the adoption of the tool, holes and piles can be formed by one shot during the construction process. Meanwhile, the construction speed is improved and the energy consumption is saved.
Description
Technical field
The utility model belongs to building field, relates to a kind of drilling tool, but is specifically related to a kind of combined down-hole hammer drilling tool of one-step pore-creating pile.
Background technology
In recent years, development along with China's building field, high level and super highrise building are more and more intensive, requirement to basis is more and more higher, the foundation pile stake end in a lot of areas must embed the rock stratum certain depth and just can meet design requirement, for solving an embedding rock difficult problem, the down-hole hammer technology is developed gradually in technical research field in recent years.
The domestic 100 multinomial patent research that surpassed since the eighties with down-hole hammer technology hole forming method, progressively develop into and adopt down-hole hammer with pipe combination pore-forming from simple employing down-hole hammer technology pore-forming, improved the technical level of pore-forming in basement rock.
Present down-hole hammer research is mainly the innovation of the aspects such as the rock breaking capacity that further improves down-hole hammer itself, broken rock speed, or to further retaining wall, thoroughly exhaust, the deslagging in broken rock pore forming process of down-hole hammer way-type drilling unit, improving and innovation of the technology such as environmental protection, although obtain certain effect on down-hole hammer hole forming method, energy consumption, raising efficiency of construction, but still have following defect: 1. the function of described down-hole hammer and down-hole hammer way-type drilling unit thereof or stake machine only limits to pore-forming, can't disposal pore-forming and pile; 2. in pile foundation engineering, first use down-hole hammer technology or down-hole hammer way-type drilling unit technology pore-forming, then adopt other method pile, therefore, efficiency of construction is low or cost is higher.
The utility model content
The purpose of this utility model is to provide a kind of combined down-hole hammer drilling tool.
The technical scheme that the utility model adopts:
A kind of combined down-hole hammer drilling tool, comprise open type down-hole hammer, multilayer Dentate screw drilling rod, and open type down-hole hammer and multilayer Dentate screw drilling rod are fixed by pin, axle and sealing mat; The impactor of described open type down-hole hammer is designed to the hollow type impactor; In the bottom of open type down-hole hammer, be provided with can be closed movable bottom door, function with slagging channel or concreting exit passageway, the side of open type down-hole hammer arranges the reaming piece, and forced-draft hole, high pressure gas ash pit are set in the inside of open type down-hole hammer; Described multilayer Dentate screw drilling rod consists of drilling rod outer tube and drilling rod inner tube, and the drilling rod outer tube is provided with air pipe, and the drilling rod inner tube can be used as the passage of exhaust, deslagging and concreting.During the broken rock of down-hole hammer, movable bottom door can be used as exhaust, deslagging import, drilling tool is drilled into design end absolute altitude, the concrete of high pressure pumping is delivered to the bottom movable bottom door by hollow type impactor centre bore, movable bottom door is opened, outlet as the concreting pile, drilling tool is concreting while carrying, and drilling tool is mentioned pile driving construction and completed.The open type down-hole hammer is divided into three classes: the first kind is anti-circulation down-hole hammer; Equations of The Second Kind is the direct circulation down-hole hammer; The 3rd class is positive and negative bidirectional circulating down-hole hammer.。
The internal diameter of the centre bore of described down-hole hammer impactor is greater than the internal diameter of drilling rod inner tube, being beneficial to concrete normally carries, when the broken rock of down-hole hammer, the gas of discharging and dregs are by the anti-discharge that circulates of hollow type impactor centre bore, after tup gets into design stake end absolute altitude, the concrete of high pressure pumping is delivered to the bottom movable bottom door by hollow type impactor centre bore, completes concrete building.
The utility model is simple in structure, and is easy and simple to handle, can in construction, adopt the one-step pore-creating pile-formation process, improved speed of application, saves energy consumption.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the sectional drawing of utility model.
Fig. 3 is the top view of anti-circulating down-hole hammer.
Fig. 4 is the top view of direct circulation formula down-hole hammer.
Fig. 5 is the top view of positive and negative Bidirectional circulation down-hole hammer.
In figure: 1, open type down-hole hammer; 2, multilayer Dentate screw drilling rod; 3, drilling rod inner tube; 4, hollow type impactor; 5, movable bottom door; 6, air pipe; 7, drilling rod outer tube; 8, alignment pin; 9, locating shaft; 10, reaming piece; 11, forced-draft hole; 12, high pressure gas ash pit.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
In structure shown in the drawings, the designed combined down-hole hammer drilling tool of the utility model comprises open type down-hole hammer 1, multilayer Dentate screw drilling rod 2, and open type down-hole hammer and multilayer Dentate screw drilling rod are fixed by alignment pin 8, locating shaft 9 and sealing mat; The impactor of described open type down-hole hammer is designed to hollow type impactor 4, the internal diameter of its centre bore is greater than the internal diameter of drilling rod inner tube 3, being beneficial to concrete normally carries, when the broken rock of down-hole hammer, the gas of discharging and dregs are by the anti-discharge that circulates of hollow type impactor centre bore, in the bottom of open type down-hole hammer, be provided with can be closed movable bottom door 5, function with slagging channel or concreting exit passageway, the side of open type down-hole hammer arranges reaming piece 10, and forced-draft hole 11, high pressure gas ash pit 12 are set in the inside of open type down-hole hammer; Described multilayer Dentate screw drilling rod 2 consists of drilling rod outer tube 7 and drilling rod inner tube 3, and drilling rod outer tube 7 is provided with air pipe 6, and drilling rod inner tube 3 can be used as the passage of exhaust, deslagging and concreting.During the broken rock of down-hole hammer, movable bottom door 5 can be used as exhaust, deslagging import, drilling tool is drilled into design end absolute altitude, the concrete of high pressure pumping is delivered to the bottom movable bottom door by hollow type impactor centre bore, movable bottom door 5 is opened, outlet as the concreting pile, drilling tool is concreting while carrying, and drilling tool is mentioned pile driving construction and completed.The open type down-hole hammer is divided into three classes: the first kind is anti-circulation down-hole hammer; Equations of The Second Kind is the direct circulation down-hole hammer; The 3rd class is positive and negative bidirectional circulating down-hole hammer.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (2)
1. a combined down-hole hammer drilling tool, comprise open type down-hole hammer, multilayer Dentate screw drilling rod, it is characterized in that: open type down-hole hammer and multilayer Dentate screw drilling rod are fixed by bearing pin and sealing mat; The impactor of described open type down-hole hammer is designed to the hollow type impactor; In the bottom of open type down-hole hammer, be provided with can be closed movable bottom door, the side of open type down-hole hammer arranges the reaming piece, and forced-draft hole, high pressure gas ash pit are set in the inside of open type down-hole hammer; Described multilayer Dentate screw drilling rod consists of drilling rod outer tube and drilling rod inner tube, and the drilling rod outer tube is provided with air pipe.
2. combined down-hole hammer drilling tool according to claim 1, it is characterized in that: the internal diameter of the centre bore of described down-hole hammer impactor is greater than the internal diameter of drilling rod inner tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202542621U CN203296676U (en) | 2013-05-11 | 2013-05-11 | Combined down-hole hammer drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202542621U CN203296676U (en) | 2013-05-11 | 2013-05-11 | Combined down-hole hammer drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203296676U true CN203296676U (en) | 2013-11-20 |
Family
ID=49572694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202542621U Expired - Fee Related CN203296676U (en) | 2013-05-11 | 2013-05-11 | Combined down-hole hammer drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203296676U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244051A (en) * | 2013-05-11 | 2013-08-14 | 重庆卓典建设工程有限公司 | Combined down-hole hammer drilling tool and pile forming construction method thereof |
| CN107288561A (en) * | 2017-07-04 | 2017-10-24 | 贵州航天天马机电科技有限公司 | One kind spins drilling with the brill supporting slag-draining device of reacting cycle |
-
2013
- 2013-05-11 CN CN2013202542621U patent/CN203296676U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244051A (en) * | 2013-05-11 | 2013-08-14 | 重庆卓典建设工程有限公司 | Combined down-hole hammer drilling tool and pile forming construction method thereof |
| CN107288561A (en) * | 2017-07-04 | 2017-10-24 | 贵州航天天马机电科技有限公司 | One kind spins drilling with the brill supporting slag-draining device of reacting cycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |