CN203531744U - Bunched type normal circulation pneumatic down-hole hammer - Google Patents
Bunched type normal circulation pneumatic down-hole hammer Download PDFInfo
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- CN203531744U CN203531744U CN201320573891.0U CN201320573891U CN203531744U CN 203531744 U CN203531744 U CN 203531744U CN 201320573891 U CN201320573891 U CN 201320573891U CN 203531744 U CN203531744 U CN 203531744U
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- hole hammer
- central tube
- hole
- bucket formula
- gas distributing
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Abstract
A bunched type normal circulation pneumatic down-hole hammer comprises an air distribution chamber, a barrel type apron and a center pipe with the top connected with a drill column. The center pipe penetrates through the air distribution chamber and the barrel type apron in sequence, at least one layer of combined branch hammers are arranged between the barrel type apron and the center pipe and comprise a plurality of down-hole hammer units which are evenly distributed in the circumferential direction of the center pipe, the center pipe is communicated with the air distribution chamber through air inlets formed in the pipe wall, the air distribution chamber is communicated with piston cylinders in all down-hole hammer units, and the bottom of the barrel type apron is provided with bottom lip plates arranged on the center pipe and the down-hole hammer units in a sleeved mode. The air distribution chamber is communicated with the piston cylinders in all down-hole hammer units, so that all down-hole hammer units act at the same time through impacting, compared with the conventional drilling technology combing mud, cones and hobs, the bunched type normal circulation pneumatic down-hole hammer is formed by integrating a plurality of impactors, does not need chambering in a graded mode, and finishes construction tasks in one-time impact drilling, construction efficiency is greatly improved, cost is lowered, and normal circulation drilling can be achieved.
Description
Technical field
The utility model belongs to drilling construction field, is specifically related to a kind of cluster type direct circulation pneumatic down-hole hammer.
Background technology
At present, China's conventional drilling method in big diameter borehole construction is to utilize combination gear wheel or combination roller cutter bit classification reaming, realizes construction task.Cluster type pneumatic down-hole hammer utilizes impactor principle, improves drilling efficiency, and a plurality of impactors are integrated without classification reaming, and disposable percussion drilling completes construction and appoints.With respect to combination gear wheel or roller cutter bit.
In heavy caliber colliery or during mine crisis rescue drilling construction; the general construction requirement time is shorter; if when application conventional combination rock bit or the construction of combination roller cutter bit; because boring bore is larger; drill string is large with boring annular gap; mud upward velocity is very slow, gets rid of rock dust airplane crash, so drilling efficiency is low.
Utility model content
The purpose of this utility model is to provide a kind of high-efficient impacting rock drilling and the cluster type direct circulation pneumatic down-hole hammer of rock dust in evacuation aperture in time.
In order to achieve the above object, the technical solution adopted in the utility model is: comprise gas distributing chamber, bucket formula apron and the central tube of top for being connected with drill string, central tube runs through gas distributing chamber and bucket formula apron successively; One deck combination hammer is at least set between bucket formula apron and central tube, and every layer of combination hammer is comprised of some down-hole hammers that make progress in central tube week that are evenly arranged on; Central tube is communicated with gas distributing chamber by the air inlet of offering on its tube wall, and gas distributing chamber is communicated with the piston-cylinder in each down-hole hammer, and bucket formula apron bottom is provided with the end labial lamina being enclosed within on central tube and down-hole hammer.
On the sidewall of described central tube bottom, be provided with multiple wing type centralizer.
The top of described bucket formula apron is provided with the fixed head being connected with bucket formula apron.
Described down-hole hammer comprises down-the-hole hammer body and the down-the-hole tup being connected with down-the-hole hammer body bottom, and end labial lamina is enclosed within on down-the-hole hammer body and central tube.
Described gas distributing chamber is connected with the piston-cylinder in down-the-hole hammer body by running through the wireway of fixed head respectively, and down-the-hole hammer body top is provided with the jointing being connected with wireway.
Top and the fixed head of described bucket formula apron are fixed together by some alignment pins.
The top of described central tube is provided with the thread for jointed rod post and central tube.
Compared with prior art, the beneficial effects of the utility model are:
The utility model in use central tube top is connected with drill string, and because the entrance of drill string is parallel with several air compressor machines, therefore, the Wind Volume pressure-air that air compressor machine produces can enter into central tube by drill string center; Simultaneously owing to offering the air inlet being connected with gas distributing chamber on central tube, and gas distributing chamber is connected with the piston/cylinder of each down-hole hammer respectively, therefore, pressure-air can enter gas distributing chamber by air inlet, is evenly distributed to each down-hole hammer realizes impact acting through gas distributing chamber; Because pressure-air is to be assigned to each down-hole hammer simultaneously, so, in the utility model, the impact of each down-hole hammer acting is carried out simultaneously, the conventional mud of comparing combination gear wheel, hobboing cutter drilling process, the utility model is integrated by a plurality of impactors, and without classification reaming, disposable percussion drilling completes construction and appoints, greatly improve efficiency of construction, reduced cost.And completing pressure release gas after acting can be through down-the-hole tup steam vent to drill bit bottom, in the time of cooling down-the-hole tup, carry the rock dust that down-hole hammer primary drying hits and discharge earth's surface by drill string and boring annular gap, realize direct circulation and creep into.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model;
Fig. 2 is the sectional drawing of Fig. 1; Wherein, the A-A ' sectional drawing that a is Fig. 1, the sectional drawing of the B-B ' that b is Fig. 1;
Wherein, 1, thread, 2, gas distributing chamber, 3, wireway, 4, alignment pin, 5, fixed head, 6, jointing, 7, bucket formula apron, 8, down-the-hole hammer body, 9, end labial lamina, 10, down-the-hole tup, 11, multiple wing type centralizer, 12, central tube.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further details.
Referring to Fig. 1-2, the utility model comprises gas distributing chamber 2, bucket formula apron 7 and the central tube 12 that axially runs through successively gas distributing chamber 2 and bucket formula apron 7 along bucket formula apron 7, and central tube and bucket formula apron 7 coaxially arrange, the top band of central tube 12 is useful on the thread 1 being connected with drilling rod, on the sidewall of central tube 12 bottoms, be provided with the multiple wing type centralizer 11(that there are six wings or be greater than six wings and see Fig. 2 a), before guaranteeing, guide hole is concentric with reaming, and uniform stressed creeps into.One deck combination hammer is set between bucket formula apron 7 and central tube 12, and combination hammer is evenly arranged on by four the down-hole hammer that central tube makes progress for 12 weeks and forms, down-hole hammer comprises down-the-hole hammer body 8 and the down-the-hole tup 10 being connected with down-the-hole hammer body 8 bottoms; The air inlet of offering on the tube wall of central tube 12 by central tube 12 is communicated with gas distributing chamber 2, the gas distributing chamber 2 respectively wireway 3 by running through fixed head 5 is communicated with the piston-cylinder in corresponding down-the-hole hammer body 8, a wireway 3 is communicated with the piston-cylinder in a down-the-hole hammer body 8, and down-the-hole hammer body 8 tops are provided with the jointing 6 being connected with wireway 3; The bottom of bucket formula apron 7 is provided with end labial lamina 9, and end labial lamina 9 is enclosed within down-the-hole hammer body 8 and central tube 12.Wherein, on the top of bucket formula apron 7, be provided with fixed head 5, fixed head 5 is fixed on barrel formula apron 7 by 2 alignment pins 4; Fixed head 5 is also fixed on a barrel top for formula apron 7 by eight positioning bolts.
In addition, according to the impact of bore diameter size and bucket formula apron 7 diameters and down-hole hammer size, combine sub-hammer can also be arranged to two-layer or two-layer more than, the down-hole hammer that forms combination hammer also can design according to actual conditions the number of down-hole hammer, four down-hole hammers that are not limited only to mention.
The utility model can heavy caliber coal mine gas discharge orifice, Cooling Holes, gravity vent, speedily carry out rescue work hole construction of drain hole or mine crisis, its operating principle is: the utility model in use core barrel is to be communicated with drill string, and in real work, the entrance of drill string can be parallel with several air compressor machines, the pressure-air of the Wind Volume that air compressor machine produces is delivered to central tube 12 by drill string center, pressure-air enters gas distributing chamber by the air inlet of offering on central tube 12 tube walls, pressure-air is in the interior focused energy of gas distributing chamber 2, pressure in gas distributing chamber 2 acquires a certain degree, just by wireway 3, the pressure-air of focused energy is distributed to the piston-cylinder in each down-the-hole hammer body, piston promotes down-the-hole tup and creeps into forward, because gas distributing chamber 2 distributes to each piston-cylinder by wireway 3 by gases at high pressure simultaneously, therefore, piston promotes down-the-hole tup 10 to carry out impact drilling reaming and creeps into also and carry out simultaneously, so just can utilize air pressure to realize each down-hole hammer and impact acting, reduce construction period, the object reducing costs.In addition, in gas distributing chamber 2, during to piston/cylinder distribution of gas, the pressure in gas distributing chamber 2 also can reduce gradually, and when being reduced to certain pressure, gas distributing chamber 2 will interrupt to the piston/cylinder air feed in each down-the-hole hammer body, and down-hole hammer stops impacting acting.And gas distributing chamber 2 is also gathering strength simultaneously again, treat that energy is enough that pressure reaches a certain size, can again distribute gases at high pressure, make down-hole hammer impact acting simultaneously.
When the utility model creeps in rock drilling, the rock dust that boring produces is owing to being subject to stopping of labial lamina 9 on earth, and whole device can present circular motion under the drive of drill string, therefore, in drill string under the centrifugal action that rock dust produces at circular motion outside bucket formula apron 7 and the formed annular gap of boring, move, and complete pressure release gas after acting through down-the-hole tup steam vent to drill bit bottom, carry the rock dust that down-hole hammer primary drying hits and discharge earth's surface by drill string and boring annular gap, therefore, the utility model is when boring, direct circulation medium upward velocity is fast, rock dust in timely evacuation aperture, drilling efficiency is high, simultaneously cost-saving, realizing direct circulation creeps into, while having overcome conventional combination rock bit or the construction of combination roller cutter bit, mud upward velocity is very slow, the shortcoming of getting rid of rock dust difficulty.In addition, the direct circulation medium in the present invention can be both that said air can be also the mixed air foam of clear water above.The utility model require in use drill string and hole wall annular gap as far as possible little, easy-to-discharge slag; Meanwhile, zone of fracture can enter with pipe bit; In direct circulation air dielectric, can also add foam stabiliser to be convenient to stablize hole wall and carry smoothly rock dust.
The utility model adopts three-dimensional space drawing technology, drilling process under simulation well, adopt down-hole hammer operating principle, by rigorous science, calculate, by the integrated as a whole major diameter drill bit of several impactors, by appropriate design, utilize clear water, air or air foam as circulatory mediator, cooling drill bit and carry rock dust when realizing each impactor and impact acting simultaneously, has realized cluster type direct circulation pneumatic down-hole hammer drilling process.The conventional mud of comparing combination gear wheel, hobboing cutter drilling process, improved efficiency of construction greatly, reduced cost.
Claims (7)
1. cluster type direct circulation pneumatic down-hole hammer, is characterized in that: comprise gas distributing chamber (2), bucket formula apron (7) and the top central tube (12) for being connected with drill string, central tube (12) runs through gas distributing chamber (2) and bucket formula apron (7) successively; One deck combination hammer is at least set between bucket formula apron (7) and central tube (12), and every layer of combination hammer is comprised of some down-hole hammers that make progress in central tube (12) week that are evenly arranged on; Central tube (12) is communicated with gas distributing chamber (2) by the air inlet of offering on its tube wall, and gas distributing chamber (2) is communicated with the piston-cylinder in each down-hole hammer, and bucket formula apron (7) bottom is provided with the end labial lamina (9) being enclosed within on central tube (12) and down-hole hammer.
2. cluster type direct circulation pneumatic down-hole hammer according to claim 1, is characterized in that: on the sidewall of described central tube (12) bottom, be provided with multiple wing type centralizer (11).
3. cluster type direct circulation pneumatic down-hole hammer according to claim 1, is characterized in that: the top of described bucket formula apron (7) is provided with the fixed head (5) being connected with bucket formula apron (7).
4. cluster type direct circulation pneumatic down-hole hammer according to claim 3, it is characterized in that: described down-hole hammer comprises down-the-hole hammer body (8) and the down-the-hole tup (10) being connected with down-the-hole hammer body (8) bottom, and end labial lamina (9) is enclosed within on down-the-hole hammer body (8) and central tube (12).
5. cluster type direct circulation pneumatic down-hole hammer according to claim 4, it is characterized in that: described gas distributing chamber (2) is connected with the piston-cylinder in down-the-hole hammer body (8) by running through the wireway (3) of fixed head (5) respectively, and down-the-hole hammer body (8) top is provided with the jointing (6) being connected with wireway (3).
6. cluster type direct circulation pneumatic down-hole hammer according to claim 4, is characterized in that: top and the fixed head (5) of described bucket formula apron (7) are fixed together by some alignment pins (4).
7. cluster type direct circulation pneumatic down-hole hammer according to claim 1, is characterized in that: the top of described central tube (12) is provided with the thread (1) for jointed rod post and central tube (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320573891.0U CN203531744U (en) | 2013-09-16 | 2013-09-16 | Bunched type normal circulation pneumatic down-hole hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320573891.0U CN203531744U (en) | 2013-09-16 | 2013-09-16 | Bunched type normal circulation pneumatic down-hole hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203531744U true CN203531744U (en) | 2014-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320573891.0U Expired - Fee Related CN203531744U (en) | 2013-09-16 | 2013-09-16 | Bunched type normal circulation pneumatic down-hole hammer |
Country Status (1)
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|---|---|
| CN (1) | CN203531744U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003199A (en) * | 2015-05-28 | 2015-10-28 | 山东中瑞工程机械有限公司 | Large-diameter pile hole operation construction method and special clustered DTH hammer |
| CN107829685A (en) * | 2017-10-10 | 2018-03-23 | 苏州工业园区科艺通信设备有限公司 | A kind of directional drilling machine pneumatic type tunneling boring rock reamer and its chambering process |
| CN110219583A (en) * | 2019-06-12 | 2019-09-10 | 湖南科技大学 | A kind of large aperture pineapple hair style hard rock is crushed impactor and breaking method |
| CN115788280A (en) * | 2022-11-18 | 2023-03-14 | 浩洲钻科工程机械(山东)有限公司 | Independent multi-channel full-hole reverse circulation cluster type down-the-hole |
-
2013
- 2013-09-16 CN CN201320573891.0U patent/CN203531744U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003199A (en) * | 2015-05-28 | 2015-10-28 | 山东中瑞工程机械有限公司 | Large-diameter pile hole operation construction method and special clustered DTH hammer |
| CN107829685A (en) * | 2017-10-10 | 2018-03-23 | 苏州工业园区科艺通信设备有限公司 | A kind of directional drilling machine pneumatic type tunneling boring rock reamer and its chambering process |
| CN107829685B (en) * | 2017-10-10 | 2023-12-19 | 苏州工业园区科艺通信设备有限公司 | Pneumatic full-section rock reamer of directional drilling machine and reaming process thereof |
| CN110219583A (en) * | 2019-06-12 | 2019-09-10 | 湖南科技大学 | A kind of large aperture pineapple hair style hard rock is crushed impactor and breaking method |
| CN110219583B (en) * | 2019-06-12 | 2020-07-24 | 湖南科技大学 | Large-aperture pineapple head type hard rock crushing impactor and crushing method |
| CN115788280A (en) * | 2022-11-18 | 2023-03-14 | 浩洲钻科工程机械(山东)有限公司 | Independent multi-channel full-hole reverse circulation cluster type down-the-hole |
| CN115788280B (en) * | 2022-11-18 | 2023-09-26 | 浩洲钻科工程机械(山东)有限公司 | Independent multi-channel full-hole reverse circulation bundling type down-the-hole hammer |
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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: 20140409 Termination date: 20210916 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |