CN101492997A - Hydraulic down-the-hole rock drilling impactor - Google Patents
Hydraulic down-the-hole rock drilling impactor Download PDFInfo
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- CN101492997A CN101492997A CNA200810004311XA CN200810004311A CN101492997A CN 101492997 A CN101492997 A CN 101492997A CN A200810004311X A CNA200810004311X A CN A200810004311XA CN 200810004311 A CN200810004311 A CN 200810004311A CN 101492997 A CN101492997 A CN 101492997A
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Abstract
The invention discloses a hydraulic pressure down-hole rock drilling impacter which takes pressure oil as power and can be applied to hydraulic pressure rock drilling equipment. The impacter mainly comprises an impact piston, a stroke geometric proportion control piston set, a reversing valve, an oil supplementing valve, a rotary motor and the like. A small stroke geometric proportion transmission piston acquires a stroke signal of the impact piston by an oil channel and keeps stroke geometric proportion movement with the impact piston; a small stroke geometric proportion piston controls the valve core of the reversing valve to move; oil supply and oil return of an upper cavity of the impact piston is changed; a lower cavity of the impact piston constantly supplies the pressure oil; according to the change of the oil supply and the oil return of the upper cavity of the impact piston, the impact piston can realize automatic reciprocating movement upwards and doweards. The impact piston is fixedly connected with a drill bit and kinetic energy of the impact piston and the drill bit is used for directly impacting rock to achieve the purpose of shattering the rock. The impact piston 13 is supported on a piston upper bearing 21 and a piston lower bearing 25 and offsets radial acting force generated by impacting the rock by virtue of the bearing thereof. Rotary motion of the impact piston depends on a labyrinth screw motor rotor connected with the impact piston and a labyrinth screw motor spindle connected with a cavity of a labyrinth screw motor; when the impact piston moves downwards, the labyrinth screw motor rotor is driven to move downwards relative to the labyrinth screw motor spindle and pressure oil in the cavity of a labyrinth screw motor is extruded to helicoidally flow upwards along the labyrinth screw motor rotor and a labyrinth screw groove of the labyrinth screw motor spindle.
Description
Technical field
The present invention relates to a kind of hydraulicdriven hydraulic down-the-hole rock drilling impactor, be used for hydraulic rock and impact apparatus.
Background technology
Down-the-hole rock drilling impactor all is to adopt compressed air as power, and driven plunger bump drill bit is with the stress wave fractured rock of bump generation.There is inefficiency, problem such as power is little, a large amount of power of steering resistance consumption when deep well drilling also cause the quick wearing and tearing of drill steel and drill bit simultaneously.
Summary of the invention
The purpose of this invention is to provide the hydraulically powered down-the-hole rock drilling impactor of a kind of employing, impact piston is fixedlyed connected with drill bit, utilizes kinetic energy directly to impact the purpose that rock reaches fractured rock, and the efficient of fractured rock is higher; Stroke geometric ratio transmission system is adopted in piston stroke control, makes the Stroke Control of impact piston simple and reliable, and the manufacturing process difficulty is low; Adopt the labyrinth auger motor that the impact piston turning moment is provided, simple in structure, the revolution transmission does not have wearing and tearing.
The object of the present invention is achieved like this: a kind of hydraulic down-the-hole rock drilling impactor, comprise the fuel feeding Connection Block 1 that is connected with the main frame oil circuit, the connecting bolt 2 that each cylinder body of this down-the-hole rock drilling impactor is linked into an integrated entity, stroke geometric ratio system carries out repairing by repairing sequence valve 3, stroke geometric ratio transmission valve piston 4 obtains the stroke signal of impact piston 13 and keeps the stroke geometric ratio to move with impact piston 13 by oil circuit l-m, seal 5 on the valve piston, valve piston valve pocket 6, with the closed loop of stroke geometric ratio transmission cavity of resorption 15 composition stroke geometric ratio transmission systems, utilize the Incoercibility realization impact piston 13 of liquid and the stroke geometric ratio transmission between the stroke geometric ratio valve piston 4.Stroke geometric ratio valve piston control change-over valve core 7 moves, the fuel feeding and the oil return of conversion impact piston epicoele, the cavity of resorption of impact piston 13 is supply pressure oil always, because the last axle journal of impact piston is less than axle journal under it, according to fuel feeding, the oil return conversion of impact piston epicoele, impact piston can be realized pumping automatically.The sealing of impact piston 13 ensures by sealing 21 on the impact piston and piston seal 24 and piston lower seal 26.Impact piston 13 is supported on piston upper bearing (metal) 21 and the piston lower bearing 25, the radial effect power when impact piston 13 relies on its bearing bearing gram to impact rock again.The nitrogen pressure of nitrogen cylinder 11 plays accumulation of energy and the auxiliary effect of impacting.
Hydraulic down-the-hole rock drilling impactor provided by the present invention, the gyration of impact piston 13 relies on the labyrinth auger motor rotor 17 of its connection, the labyrinth auger motor spindle 18 that is connected with labyrinth auger motor cavity 16, driving labyrinth auger motor rotor 17 when impact piston 13 moves down moves down with respect to labyrinth auger motor spindle 18, and the hydraulic oil of extruding palace auger motor cavity 16 is through the labyrinth helicla flute of labyrinth auger motor rotor 17 and labyrinth auger motor spindle 18 helical flow that makes progress, under the reaction of labyrinth screw fluid, produce the turning effort moment of impact piston 13, make impact piston 13 in impacting moving process, turn round certain angle.
Utilize this hydraulic down-the-hole rock drilling impactor can be so that the impact energy of rock drilling impacter is bigger, drill bit directly clashes into rock with the form of kinetic energy, and the efficient of fractured rock is higher, adopts hydraulic machinery efficient higher than pneumatic machinery efficient.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is a structural representation of the present invention.Among the figure 1, the fuel feeding Connection Block; 2, connecting bolt; 3, the repairing sequence valve; 4, stroke geometric ratio transmission valve piston; Seal on 5 valve pistons; 6, the valve piston sleeving valve; 7, change-over valve core; 8, the valve piston back-moving spring; 9, the reversal valve valve pocket; 10, the reversal valve bottom sealing socket; 11, the nitrogen cylinder; 12, impact piston upper limit seat; 13 impact pistons; 14, sealing: 15 stroke geometric ratio transmission cavity of resorptions; 16, labyrinth auger motor cavity; 17, motor auger motor rotor; 18, labyrinth auger motor spindle; 19, the impact piston upper seal support; 20, seal on the piston; 21 piston upper bearing (metal)s; 22, piston-cylinder; 23, Master cylinder body; 24, piston seal; 25, the piston lower bearing; 26, the piston lower seal; 27, dust seal; 28, sheath; 29, drill bit.
A, sequence valve high pressure hydraulic fluid port; B, sequence valve low pressure hydraulic fluid port; C, impact piston cavity of resorption oil-feed port; D, stroke transmission valve group oil-feed port; E, reversal valve group oil-feed port; F, the reversal valve oil-out; G, the reversal valve oil return opening; H, oil-feed port under the change-over valve core; I, labyrinth auger motor oil return opening; J, impact piston epicoele hydraulic fluid port; K, impact piston cavity of resorption hydraulic fluid port; L, stroke geometric ratio transmission cavity of resorption hydraulic fluid port; M, stroke geometric ratio transmission epicoele hydraulic fluid port; P, high-pressure oil passage; T, oil return circuit
The specific embodiment
Among the present invention:
With pressure oil is power, impact piston 13 is power take-off mechanisms, replace at epicoele under the situation of fuel feeding, oil return and move back and forth, can change hydraulic pressure into the kinetic energy band, the moving drill bit 29 that is connected to a fixed moves together, when moving downward hydraulic pressure can be converted to the kinetic energy of impact piston and drill bit, and directly impact rock, reach the purpose of fractured rock with the form of kinetic energy.The non-clutch end of impact piston 13 extends axostylus axostyle and stroke geometric ratio transmission valve piston 4, seals 5 on the valve piston, and valve piston valve pocket 6 is with the closed loop of stroke geometric ratio transmission cavity of resorption 15 composition stroke geometric ratio transmission systems.The position signalling geometric ratio that realizes impact piston 13 is delivered on the stroke geometric ratio transmission valve piston 4: change-over valve core 7 is according to the commutation signal of stroke geometric ratio transmission valve piston 4, and the epicoele fluid course of switching shock piston 13 is finished its reciprocating conversion.The gyration of impact piston 13 relies on the labyrinth auger motor rotor 17 of its connection, the labyrinth auger motor spindle 18 that is connected with labyrinth auger motor cavity 16, driving labyrinth auger motor rotor 17 when impact piston 13 moves down moves down with respect to labyrinth auger motor spindle 18, and the hydraulic oil of extruding palace auger motor cavity 16 is through the labyrinth helicla flute of labyrinth auger motor rotor 17 and labyrinth auger motor spindle 18 helical flow that makes progress, under the reaction of labyrinth screw fluid, produce the turning effort moment of impact piston 13, make impact piston 13 in impacting moving process, turn round certain angle
The operating principle of this device is as follows:
For this hydraulic down-the-hole rock drilling impactor provides oil pressure, each cylinder body of this down-the-hole rock drilling impactor links together by connecting bolt 2 the main frame oil circuit by fuel feeding Connection Block 1, and stroke geometric ratio system carries out repairing by repairing sequence valve 3.
Backward stroke of the piston: Master cylinder body 22 supplies hydraulic oil by impact piston cavity of resorption hydraulic fluid port k, oil-feed port h supplies pressure oil to change-over valve core 7 microcephalies under the change-over valve core at this moment, under hydraulic action, change-over valve core 7 is in the upper end, reversal valve oil-out f is communicated with reversal valve oil return opening g, and Master cylinder body 22 epicoeles are by impact piston epicoele hydraulic fluid port j-f-g oil return.Impact piston 13 moves upward under the cavity of resorption hydraulic action.Stroke geometric ratio transmission valve piston 4 obtains the stroke signal of impact piston 13 and keeps the stroke geometric ratio to move with impact piston 13 by oil circuit l-m, seal 5 on the valve piston, valve piston valve pocket 6, with the closed loop of stroke geometric ratio transmission cavity of resorption 15 composition stroke geometric ratio transmission systems, utilize the Incoercibility realization impact piston 13 of liquid and the stroke geometric ratio transmission between the stroke geometric ratio valve piston 4.
Piston stroke: when moving to the upper end on the impact piston 13, the big end fuel feeding of stroke geometric ratio valve piston control change-over valve core 7, change-over valve core 7 moves down, change-over valve core 7 is in the lower end, reversal valve oil-out f is communicated with reversal valve group oil-feed port e, Master cylinder body 22 epicoeles are by impact piston epicoele hydraulic fluid port j-f-e fuel feeding, impact piston 13 upper and lower cavities all are in the fuel feeding state, because the last axle journal of impact piston is less than axle journal under it, the suffered downward pressure of impact piston 13 is greater than upward pressure, impact piston moves downward for 13 this moments, the beginning impact stroke.Stroke geometric ratio transmission valve piston 4 keeps the stroke geometric ratio to move with impact piston 13 under the effect of valve piston back-moving spring 8.Impact piston 13 is supported on piston upper bearing (metal) 21 and the piston lower bearing 25, the radial effect power when impact piston 13 relies on its bearing bearing gram to impact rock again.The nitrogen pressure of nitrogen cylinder 11 plays accumulation of energy and the auxiliary effect of impacting.
Hydraulic down-the-hole rock drilling impactor provided by the present invention, the gyration of impact piston 13 relies on the labyrinth auger motor rotor 17 of its connection, the labyrinth auger motor spindle 18 that is connected with labyrinth auger motor cavity 16, impact piston 13 is done downwards to impact and is driven labyrinth auger motor rotor 17 when mobile and move down with respect to labyrinth auger motor spindle 18, and the hydraulic oil of extruding palace auger motor cavity 16 is through the labyrinth helicla flute of labyrinth auger motor rotor 17 and labyrinth auger motor spindle 18 helical flow that makes progress, under the reaction of labyrinth screw fluid, produce the turning effort moment of impact piston 13, make impact piston 13 in impacting moving process, turn round certain angle.
Advantage of the present invention: utilize this hydraulic down-the-hole rock drilling impactor so that the impact energy of rock drilling impacter is bigger, to bore The efficient of fractured rock was higher when head adopted the direct fractured rock of kinetic energy, adopted hydraulic machinery efficient than pneumatic machinery efficient Higher. When deep well drilling, reduce simultaneously rotary motive power consumption, reduce the wearing and tearing of drill steel and drill bit.
Claims (3)
1, a kind of hydraulic down-the-hole rock drilling impactor that is used for rock-boring, the drill bit that comprise impact piston, is connected to a fixed with it, it is characterized in that: move back and forth for the power drive impact piston with pressure oil, drive is moved with the drill bit that it is connected to a fixed, when moving downward hydraulic pressure can be converted to the kinetic energy of impact piston and drill bit, and directly impact rock with the form of kinetic energy, reach the purpose of fractured rock.
2, hydraulic down-the-hole rock drilling impactor according to claim 1, the stroke signal of impact piston is by stroke geometric ratio transmission cavity of resorption and stroke geometric ratio transmission valve piston feedback, the control change-over valve core moves, and the confession of switching shock piston upper chamber, oil return state move back and forth impact piston continuously.
3, hydraulic down-the-hole rock drilling impactor according to claim 1, it is characterized in that: the labyrinth auger motor rotor that is connected with impact piston, and the labyrinth auger motor spindle that is connected with labyrinth auger motor cavity, driving labyrinth auger motor rotor when impact piston moves down moves down with respect to labyrinth auger motor spindle, and the hydraulic oil of extruding palace auger motor cavity is through the labyrinth helicla flute of labyrinth auger motor rotor and the labyrinth auger motor spindle helical flow that makes progress, under the reaction of labyrinth screw fluid, produce the turning effort moment of impact piston, make impact piston in impacting moving process, turn round certain angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810004311XA CN101492997A (en) | 2008-01-21 | 2008-01-21 | Hydraulic down-the-hole rock drilling impactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810004311XA CN101492997A (en) | 2008-01-21 | 2008-01-21 | Hydraulic down-the-hole rock drilling impactor |
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| Publication Number | Publication Date |
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| CN101492997A true CN101492997A (en) | 2009-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200810004311XA Pending CN101492997A (en) | 2008-01-21 | 2008-01-21 | Hydraulic down-the-hole rock drilling impactor |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603595A (en) * | 2012-09-08 | 2014-02-26 | 天津卓尔钻机制造有限公司 | Hydraulic percussion rotary reverse circulation drilling device |
| CN103842606A (en) * | 2011-10-06 | 2014-06-04 | 山特维克矿山工程机械有限公司 | Pneumatic down-the-hole drill |
| CN105473004A (en) * | 2013-03-22 | 2016-04-06 | 泰特&莱尔组分美国公司 | Uses of soluble corn fiber for increasing colonic bacteria populations and increasing mineral absorption |
| CN108286410A (en) * | 2018-03-13 | 2018-07-17 | 苏州科艺油气工程设备服务有限公司 | Horizontal orientation Pneumatic rock driller steering drilling tool |
| CN110439455A (en) * | 2019-06-27 | 2019-11-12 | 崔子阳 | A kind of equipment of rock drilling equipment |
| CN110501240A (en) * | 2019-09-16 | 2019-11-26 | 南京工业职业技术学院 | A kind of impact opening characteristics of surrounding rock test macro |
| CN113738268A (en) * | 2021-09-13 | 2021-12-03 | 中国铁建重工集团股份有限公司 | Impact rock drilling equipment |
| CN113893758A (en) * | 2021-10-20 | 2022-01-07 | 宁波交通工程建设集团有限公司 | Large-capacity industrialized muck stirring device |
-
2008
- 2008-01-21 CN CNA200810004311XA patent/CN101492997A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103842606A (en) * | 2011-10-06 | 2014-06-04 | 山特维克矿山工程机械有限公司 | Pneumatic down-the-hole drill |
| CN103842606B (en) * | 2011-10-06 | 2016-02-24 | 山特维克矿山工程机械有限公司 | pneumatic down-the-hole drill |
| CN103603595B (en) * | 2012-09-08 | 2015-08-12 | 卓尔天成工程机械有限公司 | A kind of hydraulical impact rotary inverse circulation drilling apparatus |
| CN103603595A (en) * | 2012-09-08 | 2014-02-26 | 天津卓尔钻机制造有限公司 | Hydraulic percussion rotary reverse circulation drilling device |
| CN105473004A (en) * | 2013-03-22 | 2016-04-06 | 泰特&莱尔组分美国公司 | Uses of soluble corn fiber for increasing colonic bacteria populations and increasing mineral absorption |
| CN108286410B (en) * | 2018-03-13 | 2024-03-08 | 苏州科艺油气工程设备服务有限公司 | Guide drilling tool of horizontal directional pneumatic rock drilling machine |
| CN108286410A (en) * | 2018-03-13 | 2018-07-17 | 苏州科艺油气工程设备服务有限公司 | Horizontal orientation Pneumatic rock driller steering drilling tool |
| CN110439455A (en) * | 2019-06-27 | 2019-11-12 | 崔子阳 | A kind of equipment of rock drilling equipment |
| CN110439455B (en) * | 2019-06-27 | 2021-05-14 | 崔子阳 | Working device of rock drilling equipment |
| CN110501240A (en) * | 2019-09-16 | 2019-11-26 | 南京工业职业技术学院 | A kind of impact opening characteristics of surrounding rock test macro |
| CN113738268A (en) * | 2021-09-13 | 2021-12-03 | 中国铁建重工集团股份有限公司 | Impact rock drilling equipment |
| CN113738268B (en) * | 2021-09-13 | 2024-04-05 | 中国铁建重工集团股份有限公司 | Impact rock drilling equipment |
| CN113893758A (en) * | 2021-10-20 | 2022-01-07 | 宁波交通工程建设集团有限公司 | Large-capacity industrialized muck stirring device |
| CN113893758B (en) * | 2021-10-20 | 2022-09-02 | 宁波交通工程建设集团有限公司 | Large-capacity industrial muck stirring device |
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Open date: 20090729 |