CN101899949B - Multifunctional scour-preventing jet flow drilling and joint-cutting spray head for coal bed - Google Patents
Multifunctional scour-preventing jet flow drilling and joint-cutting spray head for coal bed Download PDFInfo
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- CN101899949B CN101899949B CN201010159991XA CN201010159991A CN101899949B CN 101899949 B CN101899949 B CN 101899949B CN 201010159991X A CN201010159991X A CN 201010159991XA CN 201010159991 A CN201010159991 A CN 201010159991A CN 101899949 B CN101899949 B CN 101899949B
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Abstract
The invention belongs to a high-pressure water jet flow equipment unit and particularly relates to a multifunctional scour-preventing jet flow drilling and joint-cutting spray head for a coal bed, comprising a drilling rod (13), a drill bit connecting body (12), an outer sleeve (1) and a water flowing hole (1-1); the center of the drill bit connecting body (12) is in threaded connection with a low-pressure water outlet control valve body (11); a water outlet (10) is arranged at the center of the low-pressure water outlet control valve body (11) and communicated with the water flowing hole (1-1) at the center of the outer sleeve (1); a step is arranged in the water outlet (10); a low-pressure water outlet control spring (9) is arranged at the inner end of the step; the left end of the spring (9) is connected with a sliding block (8); two high-pressure control valve bodies (6) are in threaded connection in the symmetrical positions of the circumferential wall of the outer sleeve (1); and conical spray nozzles (5) are arranged in the high-pressure control valve bodies (6). The multifunctional scour-preventing jet flow drilling and joint-cutting spray head for the coal bed has the advantages of simple structure, easy manufacture, low cost and improvement on the production of a coal mine.
Description
Technical field
The invention belongs to the high-pressure water jet part of appliance of colliery, particularly a kind of multifunctional scour-preventing jet flow drilling and joint-cutting spray head for coal bed with coal bed drilling joint-cutting release control coal mine rock burst disaster.
Background technology
Below engineering is mainly divided with the structure of high-pressure water jet boring, joint-cutting shower nozzle several types: the first kind is to force rotation and spinning shower nozzle, and pressure rotary nozzle volume is bigger, and complex structure.The spinning shower nozzle, complex structure also needs speed-limiting device.This type shower nozzle is mainly used in engineerings such as boats and ships rust cleaning and joint-cutting; Second type is interior rotating sprinkler, and jet requires pressure high, and general device is difficult to reach; This type shower nozzle is mainly used in engineerings such as building cleaning and pipeline cleaning, and the 3rd type is the multiinjector fixed sprinkler, and pore-forming is irregular; This type shower nozzle is mainly used in engineerings such as oil field boring and auxiliary driving, and generally speaking: existing nozzle structure is complicated, function singleness; Be mainly used in engineerings such as petroleum works, pipe blow-through, boats and ships rust cleaning, it is all improper to be used for mine engineering.
Summary of the invention
The objective of the invention is to overcome above-mentioned technical deficiency, provide a kind of simple in structure, boring joint-cutting speed is fast, be difficult for bit freezing, the effective multifunctional scour-preventing jet flow drilling and joint-cutting spray head for coal bed of coal mass relief.
The technical scheme that technical solution problem of the present invention adopts is: multifunctional scour-preventing jet flow drilling and joint-cutting spray head for coal bed comprises drilling rod, drill bit connector, outer sleeve, discharge orifice; Be characterized in connecting a low pressure delivery application valve body with internal thread at drill bit connector center; Low pressure delivery application valve body center sets out the water hole; Weep hole communicates with the discharge orifice at outer sleeve center, establishes a step in the weep hole, step inner end dress low pressure delivery control valve spring; Low pressure delivery control valve spring left end connects a slide block; The symmetric position internal thread connects two pressure control valves on the circle wall of sleeve outside, is provided with conical nozzle in the pressure control valve, and the conical nozzle lower vertical is communicated with establishes a spring cylinder slider bore; The left side is with the fixing high voltage control valve spring of spring base in the spring cylinder slider bore; High voltage control valve spring right-hand member connects the cylinder slide block, is communicated with discharge orifice, outer sleeve center and spring cylinder slider bore and establishes an oblique limbers, on low pressure delivery application valve body, pressure control valve and weep hole stop up, all establishes two special spanner jacks.
The invention has the beneficial effects as follows: multifunctional scour-preventing jet flow drilling and joint-cutting spray head for coal bed is that the boring joint-cutting is the high-pressure water jet shower nozzle of one, and it is simple in structure, be prone to make, cost is low, and this shower nozzle function is many; Boring joint-cutting speed is fast, is difficult for bit freezing, and jet impact force is big; The cutting coal body becomes the width and the degree of depth of seam big; Coal mass relief is effective, weakens stress in coal bed through joint-cutting, reduces stress concentration degree; Make coal body discharge deformation energy, reach the safety of the purpose raising Coal Production of control coal mine rock burst.
Description of drawings
Specify with embodiment below in conjunction with accompanying drawing.
Fig. 1 is that figure cuts open in multifunctional scour-preventing jet flow drilling and joint-cutting spray head for coal bed structure office.
Fig. 2 is multifunctional scour-preventing jet flow drilling and joint-cutting spray head for coal bed spare part weep hole obstruction figure.
Fig. 3 is Fig. 1 mesolow outlet water control valve body structure cutaway view Amplified image.
Fig. 4 is Fig. 1 mesohigh application valve body structure cutaway view Amplified image.
Among the figure, the 1-outer sleeve; The 1-1-discharge orifice; 2-high voltage control valve spring retainer; 3-high voltage control valve spring; 4-cylinder slide block; The 5-high pressure nozzle; The 6-pressure control valve; The 6-1-limbers; 6-2-spring cylinder slider bore; 6-3-special spanner jack; The 7-pad; The 8-slide block; 9-low pressure delivery control valve spring; The 10-weep hole; 11-low pressure delivery application valve body; 11-1-special spanner jack; 12-drill bit connector; The 13-drilling rod; The 14-weep hole stops up; 14-1-special spanner jack;
The specific embodiment
Embodiment, with reference to accompanying drawing 1～4, the outer sleeve 1 left end head of multifunctional scour-preventing jet flow drilling and joint-cutting spray head for coal bed is fixedly connected drilling rod 13; The right-hand member head is fixedly connected drill bit connector 12; Drilling rod 13 is established internal thread, and drill bit connector 12 is established external screw thread, and drill bit connector 12 centers connect a low pressure delivery application valve body 11 with internal thread; Low-pressure water application valve body 11 centers set out water hole 10; Establish step in the weep hole 10 and adorn low pressure delivery control spring 9, low pressure delivery control spring 9 left ends connect a slide block 8, and weep hole 10 communicates with the discharge orifice 1-1 at outer sleeve 1 center.In low pressure delivery application valve body 11 and outer sleeve 1 junction pad 7 is housed.Symmetry connects two pressure control valves 6 with internal thread on the circle wall of sleeve 1 outside; Be provided with taper high pressure nozzle 5 in the pressure control valve 6; Pressure control valve 6 interior communicating with high pressure nozzle 5 bottom vertical are provided with spring cylinder slider bore 6-2, and spring base 2 is established in the left side among the 6-2 of hole, and high voltage control valve spring 3 is housed on the spring base 2; Cylinder slide block 4 is equipped with on the right side of spring 3, and communicating with spring cylinder slider bore 6-2 is provided with oblique limbers 6-1.Limbers 6-1 communicates with discharge orifice 1-1 in the outer sleeve 1.On weep hole obstruction 14, low pressure delivery application valve body 11 and pressure control valve 6, being equipped with special spanner jack 14-1,11-1 and 6-1 uses to do loading and unloading.
The operating principle of multifunctional scour-preventing jet flow drilling and joint-cutting spray head for coal bed is when connecting drill bits and hole with drill bit connector 12; Injection water is low-pressure water; The water pressure of limbers 6-1 in the pressure control valve 6 can not promote cylinder slide block 4 less than the power of high voltage control valve spring 3, and then high pressure nozzle 5 is obstructed; The part water pressure is less than the power of low pressure delivery control valve spring 9 in the low pressure delivery application valve body 11; Can not promote slide block 8, the weep hole 10 of water from low pressure delivery application valve body 11 flows out, and realizes the function that low-pressure water is washed away drillings.Withdraw from and hole when carrying out joint-cutting, inject water under high pressure, the water pressure among the discharge orifice 1-1 of outer sleeve 1 is greater than the pressure of low pressure delivery control valve spring 9.Water pressure pushing slide block 8; Then can not flow out from the weep hole the low pressure delivery control valve 11 10; The water pressure of limbers 6-1 in the pressure control valve 6 promotes cylinder slide block 4 and moves to left greater than the power of high voltage control valve spring 3, and high pressure nozzle 5 is logical; Water is realized water under high pressure joint-cutting function from high pressure nozzle 5 ejections.Pressure control valve 6 replaceable low pressure delivery valve bodies 11 are done dead ahead joint-cutting usefulness, and pressure control valve 6 holes are then blocked with delivery port obstruction 4 on the outer sleeve 1.Pressure control valve 6 can be contained in simultaneously on the circle wall of outer sleeve 1 with in the drill bit connector 12 and carry out joint-cutting work.
Claims (1)
1. multifunctional scour-preventing jet flow drilling and joint-cutting spray head for coal bed; Comprise drilling rod (13), drill bit connector (12), outer sleeve (1), discharge orifice (1-1); It is characterized in that connecting a low pressure delivery application valve body (11) with internal thread at drill bit connector (12) center; Low pressure delivery application valve body (11) center sets out water hole (10), and weep hole (10) communicates with the discharge orifice (1-1) at outer sleeve (1) center, establishes a step in the weep hole (10); Step inner end dress low pressure delivery control valve spring (9); Low pressure delivery control valve spring (9) left end connects a slide block (8), and the symmetric position internal thread connects two pressure control valves (6) on the circle wall of sleeve (1) outside, is provided with conical nozzle (5) in the pressure control valve (6); Conical nozzle (5) lower vertical is communicated with establishes a spring cylinder slider bore (6-2); The left side is with the fixing high voltage control valve spring (3) of spring base (2) in the spring cylinder slider bore (6-2), and high voltage control valve spring (3) right-hand member connects cylinder slide block (4), is communicated with outer sleeve (1) discharge orifice, center (1-1) and spring cylinder slider bore (6-2) and establishes an oblique limbers (6-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010159991XA CN101899949B (en) | 2010-04-30 | 2010-04-30 | Multifunctional scour-preventing jet flow drilling and joint-cutting spray head for coal bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010159991XA CN101899949B (en) | 2010-04-30 | 2010-04-30 | Multifunctional scour-preventing jet flow drilling and joint-cutting spray head for coal bed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101899949A CN101899949A (en) | 2010-12-01 |
| CN101899949B true CN101899949B (en) | 2012-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010159991XA Expired - Fee Related CN101899949B (en) | 2010-04-30 | 2010-04-30 | Multifunctional scour-preventing jet flow drilling and joint-cutting spray head for coal bed |
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| Country | Link |
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| CN (1) | CN101899949B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230363B (en) * | 2011-06-10 | 2013-03-27 | 河南理工大学 | Device and method for drilling and forming hole in coal rock in structural belt |
| CN104373091A (en) * | 2014-11-03 | 2015-02-25 | 中国石油天然气股份有限公司 | Sand blasting perforator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4790384A (en) * | 1987-04-24 | 1988-12-13 | Penetrators, Inc. | Hydraulic well penetration apparatus and method |
| CN2417284Y (en) * | 1999-12-28 | 2001-01-31 | 杜晓瑞 | High-efficiency drilling nozzle |
| CN2437414Y (en) * | 2000-09-08 | 2001-07-04 | 陈玉凡 | Multifunctional rotary high-pressure water jet nozzle |
| CN1548246A (en) * | 2003-05-12 | 2004-11-24 | 宋家雄 | Jet nozzle with conic reflecting cavity |
| CN1776185A (en) * | 2005-11-26 | 2006-05-24 | 太原理工大学 | High-pressure water jet drill bit capable of punching and cutting by switching of water pressure |
| CN201650116U (en) * | 2010-04-30 | 2010-11-24 | 辽宁工程技术大学 | Multifunctional coal seam scouring-prevention jet flow drill lancing spray nozzle |
-
2010
- 2010-04-30 CN CN201010159991XA patent/CN101899949B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4790384A (en) * | 1987-04-24 | 1988-12-13 | Penetrators, Inc. | Hydraulic well penetration apparatus and method |
| CN2417284Y (en) * | 1999-12-28 | 2001-01-31 | 杜晓瑞 | High-efficiency drilling nozzle |
| CN2437414Y (en) * | 2000-09-08 | 2001-07-04 | 陈玉凡 | Multifunctional rotary high-pressure water jet nozzle |
| CN1548246A (en) * | 2003-05-12 | 2004-11-24 | 宋家雄 | Jet nozzle with conic reflecting cavity |
| CN1776185A (en) * | 2005-11-26 | 2006-05-24 | 太原理工大学 | High-pressure water jet drill bit capable of punching and cutting by switching of water pressure |
| CN201650116U (en) * | 2010-04-30 | 2010-11-24 | 辽宁工程技术大学 | Multifunctional coal seam scouring-prevention jet flow drill lancing spray nozzle |
Non-Patent Citations (2)
| Title |
|---|
| 张芳等.煤岩钻孔水射流自旋转喷头限速研究.《辽宁工程技术大学学报》.2005,第24卷(第2期),205-207. * |
| 张连军等.高压磨料射流钻割一体化防突设备的研究.《能源技术与管理》.2008,(第5期),1-3. * |
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| CN101899949A (en) | 2010-12-01 |
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Granted publication date: 20120829 Termination date: 20130430 |