CN106401460A - Impact-frequency-adjustable high-wind-pressure deep hole impacter - Google Patents
Impact-frequency-adjustable high-wind-pressure deep hole impacter Download PDFInfo
- Publication number
- CN106401460A CN106401460A CN201611144766.2A CN201611144766A CN106401460A CN 106401460 A CN106401460 A CN 106401460A CN 201611144766 A CN201611144766 A CN 201611144766A CN 106401460 A CN106401460 A CN 106401460A
- Authority
- CN
- China
- Prior art keywords
- piston
- air
- hole
- passage
- drill bit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
Abstract
The invention relates to an impact-frequency-adjustable high-wind-pressure deep hole impacter which comprises a rear connection head, a gun barrel, a front connection head and a drill bit, wherein a control tube is arranged in the rear connection head in a sleeved mode, a piston is arranged in the gun barrel in a sleeved mode, and ventilation channels are formed in the rear connection, the piston and the drill bit; the control tube is provided with an air distribution rod, a check valve and an air distribution hole A; the gun barrel, the rear end of the piston, the control tube and the rear connection head enclose a rear air chamber, and the gun barrel, the front end of the piston, a tail tube at the tail end of the drill bit, the drill bit and the front connection head enclose a front air chamber; an air distribution hole B is formed in the front end of the air distribution rod, and a rubber plug is arranged in the front end of the air distribution rod; a first ventilation hole and a second ventilation hole are formed in the rear end of the piston; an air drain A and an air drain B are formed in the outer lateral wall of the piston; an annular groove A is formed in the inner wall of the gun barrel. Air channels of the impacter are optimized, the impact force is improved by reducing the impact frequency in the situation that the power is kept unchanged, and the hole bottom of the drill bit is deslagged all the time; thus, the perforation depth can be 200 to 1000m, the fault rate is low, and the impacter is convenient to maintain.
Description
Technical field
The equipment the present invention relates to a kind of Pneumatic immpacting is holed, the adjustable high blast deep hole punching of especially a kind of frequency of impact
Hit device, for beating deep hole well, deep hole foundation pile and beating deep hole occasion needed for various civil engineering and underground mining.
Background technology
Currently, the deep hole impacter on market is mainly Yichang Wuhuan Rock Drilling Tools Co., Ltd. and applied in 2010
The patent obtaining《Valveless single-cylinder high-efficiency down-the-hole hammer》, its Patent No.：ZL 201020124375.6.In recent years, this
Impacter passes through updating of different manufacturer, also can only punch at present deeply for the deep hole within 200m it is difficult to beat depth
More than the deep hole of 200m, main reason is that impacter itself structures shape its when beating deep hole, because frequency of impact is too high,
And frequency of impact cannot be adjusted, the high pressure air quantity most of maintenance consumption entering in impacter is led to be done in the piston of impacter
On idle work, the vent cap in entrance drill bit is kept to carry out bottom hole deslagging without enough air quantity, once drill bit bottom
Rock slag can not be discharged in time and be arisen that burying and bit freezing although the piston of impacter is ceaselessly in acting, but whole impact is
It is difficult to drilling depth, drill bit can only repeatedly impact on the rock slag that can not discharge, and this not only consumes substantial amounts of energy, and seriously
Limit the depth of impacter punching.
Content of the invention
Present invention aim to the frequency of impact solving present percussion device is too high and frequency of impact cannot be adjusted, lead to
When beating deep hole, impulsive force is not enough, and cannot ensure have enough blast and air quantity to enter drill bit bore bottom deslagging, Jin Erying all the time
Ring the problem of impacter punching depth, a kind of adjustable high blast deep hole impacter of frequency of impact is provided for this.
The concrete scheme of the present invention is：A kind of adjustable high blast deep hole impacter of frequency of impact, including assembling successively
Rear joint together, gun tube and front connector and drill bit, are set with control pipe, are set with piston in gun tube in rear joint,
It is equipped with vent cap afterwards in joint, piston and drill bit；Control pipe has front side distribution bar and rear side non-return valve and air distribution hole
Confession air cavity in vent cap and distribution bar that A, air distribution hole A are used for after connection in joint, in the front end of distribution bar and piston
Vent cap matches；It is characterized in that：Described gun tube, the rear end of piston and control pipe and be followed by head circumference and become rear gas chamber, are boring
The tail end of head equipped with the tail pipe matching with the vent cap of piston nose, gun tube, the front end of piston, tail pipe and drill bit and front
Joint surrounds front air chamber；Air distribution hole B is offered on the side wall of described distribution bar front end, and in its front end equipped with for adjusting air pressure
Plug head with ventilation；Offer the first passage being connected with its vent cap and the second ventilation in the rear end of piston
Hole, when piston carries out return or stroke movement, air distribution hole B realizes replacing connecting with the first passage and the second passage respectively
Logical；Air drain A, B are offered on the lateral wall of piston, air drain A connects the first passage and front air chamber, air drain B connection second is led to
Pore and rear gas chamber；Annular groove A is offered on the inwall of gun tube, for control unlatching between air drain A and front air chamber or
Close.
It is provided with the mouth of pipe of heretofore described distribution bar front end towards mouth of pipe disposed inboard and for installing the ring of plug head
Shape edgewise；Described plug head has "T"-shaped cross section structure, and offers passage on plug head, and wherein plug head is big
Head end is located at supply intracavity, and is close on annular edgewise, and the little head end of plug head is arranged on the installation that annular edgewise is surrounded
Kong Zhong.
In the present invention on gun tube inwall and the rear end face against front connector is installed with drill bit retaining ring and piston card successively
Spring.
Heretofore described air distribution hole B is made up of the 4-6 side wall through hole of cylindrical arrangement along distribution bar front end；The
One passage and the second passage offer and described through hole identical quantity, and are arranged circumferentially about each along piston, and first leads to
Pore and the corresponding air drain A and air drain B being equipped with equal number of the second passage；Annular groove is offered on the lateral wall of piston
B, in order to connect each air drain A.
Present configuration is simple, design is ingenious, fault rate is low, be easy to maintenance, by being optimized to the gas circuit of impacter
Design, and in the front end of distribution bar, the plug head for adjusting blast and ventilation is installed, keeping, impacter power is constant
In the case of, by reducing the frequency of impact of piston, increase the impulsive force of impacter, and begin while impacter is punched out
Guarantee that certain blast and ventilation carry out deslagging to the bottom hole of drill bit eventually, overcome existing impacter in punching because can not
In time scarfing cinder and the problem of burying and bit freezing occurs, punching depth reaches 200～1000m it is adaptable to beat deep hole well, deep hole base
Deep hole occasion is beaten needed for plinth stake and various civil engineering and underground mining.
Brief description
Fig. 1 is the cross-sectional view of the present invention；
Fig. 2 is the cross-sectional view of control pipe in the present invention.
In figure：Joint after 1,2 gun tubes, 3 front connectors, 4 drill bits, 5 control pipes, 6 pistons, 7 passages
Road, 8 distribution bars, 9 non-return valves, 10 air distribution hole A, 11 supply air cavity, 12 rear gas chamber, 13 tail pipes, air chamber before 14,
15 air distribution hole B, 16 plug heads, 17 first passages, 18 second passages, 19 air drain A, 20 passages,
21 annular edgewise, 22 installing holes, 23 drill bit retaining rings, 24 piston circlips, 25 lock pins, 26 air drain B, 27 rings
Connected in star A, 28 annular groove B.
Specific embodiment
Referring to Fig. 1-2, a kind of adjustable high blast deep hole impacter of frequency of impact, after fitting together successively
Joint 1, gun tube 2 and front connector 3 and drill bit 4, are set with control pipe 5 and are fixed, in gun tube 2 by lock pin 25 in rear joint 1
It is set with piston 6, in rear joint 1, piston 6 and drill bit 4, be equipped with vent cap 7；Control pipe 5 has front side distribution bar 8 He
Rear side non-return valve 9 and air distribution hole A10, air distribution hole A10 is for the confession in the vent cap 7 and distribution bar 8 in joint 1 after connection
Air cavity 11, is matched with the vent cap 7 in piston 6 in the front end of distribution bar 8；Described gun tube 2, the rear end of piston 6 and control pipe 5
And after joint 1 surround rear gas chamber 12, drill bit 4 tail end equipped with the tail pipe matching with the vent cap 7 of piston 6 front end
13, gun tube 2, the front end of piston 6, tail pipe 13 and drill bit 4 and front connector 3 surround front air chamber 14；The side of described distribution bar 8 front end
Air distribution hole B15 is offered on wall, and in its front end equipped with the plug head 16 for adjusting air pressure and ventilation；After piston 6
End offers the first passage 17 being connected with its vent cap 7 and the second passage 18, carries out return or stroke in piston 6
During motion, air distribution hole B15 realizes alternate communication with the first passage 17 and the second passage 18 respectively；Lateral wall in piston 6
On offer air drain A19 vertically, air drain A19 connects the first passage 17 and front air chamber 14, and air drain B26 connects the second passage
18 with rear gas chamber 12；Annular groove A27 is offered on the inwall of gun tube 2, for controlling between air drain A19 and front air chamber 14
It is turned on and off.
Referring to Fig. 2, it is provided with towards mouth of pipe disposed inboard at the mouth of pipe of distribution bar described in the present embodiment 8 front end and is used for installing
The annular edgewise 21 of plug head 16；Described plug head 16 has "T"-shaped cross section structure, and offers ventilation on plug head 16
Hole 20, the wherein stub end of plug head 16 are located at in air cavity 11, and are close on annular edgewise 21, the little head end of plug head 16
It is arranged in the installing hole 22 that annular edgewise 21 is surrounded.When actually used, according to air compressor machine provide blast and air quantity, close
Reason ground selects plug head 16, the different scalable blast according to passage 20 aperture and the wind with different passage 20 apertures
Amount, thus change the frequency of piston 6 acting（Power is constant, reduces acting frequency and can increase impulsive force）, and keep high-pressure blast to begin
Along vent cap 7, scarfing cinder is carried out to the bottom hole of drill bit 4 eventually.
In the present embodiment on gun tube 2 inwall and the rear end face against front connector 3 is installed with drill bit retaining ring 23 He successively
Piston circlip 24.
Air distribution hole B15 described in the present embodiment is by the 4-6 side wall sets of vias of cylindrical arrangement along distribution bar 8 front end
Become；First passage 17 and the second passage 18 offer and described through hole identical quantity, and each along piston 6 circumferentially cloth
Put, the air drain A19 and air drain B26 of the first passage 17 and the second passage 18 corresponding outfit equal number；Outside in piston 6
Annular groove B28 is offered on wall, in order to connect each air drain A19.
The work process of the present invention is as follows：
(1) prepare to start：First put down impacter, the rear joint 1 of impacter is docked with the parts of drilling rod, when drill bit 4 and rock stratum
Contact jack-up piston 6 is when being at shown position, preparation is ready for；
From air compressor machine gases at high pressure P through after vent cap 7 in joint 1, back down non-return valve 9, gas is through control pipe 5
On air distribution hole A10 enter supply air cavity 11, carry out distribution by for air cavity 11；
(2) return is run（Piston 6 moves upwards）：Enter the gases at high pressure P for air cavity 11 in control pipe 5, be in figure in piston 6
When showing position, the air distribution hole B15 of distribution bar 8 front end is connected with the first passage 17, and the gases at high pressure P1 of distribution is along air drain
Air chamber 14 before 19 entrance, the gases at high pressure in front air chamber 14 expand because air pressure increases, and promote piston 6 to move upwards.When piston 6
When moving upward to the air distribution hole B15 of distribution bar 8 front end and being connected with the second passage 18 on piston 6, divide from air distribution hole B15
The gases at high pressure P2 joining enters rear gas chamber 12 by the second passage 18, and the gases at high pressure in rear gas chamber 12 are opened because air pressure increases
Begin to expand, now the first passage 17 is closed, and the shock surface of piston 6 front end and tail pipe 13 depart from, and is stored in front air chamber 14
Gases at high pressure scarfing cinder is carried out to the bottom hole of drill bit 4 by the vent cap 7 in tail pipe 13 and drill bit 4, thus in front air chamber 14
Air pressure be gradually reduced, when the air pressure in air pressure and rear gas chamber 12 in current air chamber 14 is equal, piston 6 stops moving upwards,
Return terminates；
(3) stroke movement（Piston 6 moves downward）：When the air pressure in rear gas chamber 12 is more than the air pressure in front air chamber 14, piston 6
Move downward under draught head and deadweight inertia, and drill hammer 4 carries out broken rock；Again although piston 6 drops to during this
One passage 17 is communicated with the air distribution hole B15 of distribution bar 8 front end, but because drill bit 4 is impacted broken rock, also can with
Fall, is in disengaged condition by this tail pipe 13 with piston 6, so that front air chamber 14 can not form the space of closing, therefore lives
Plug 6 moves downward under gas pressure always, until piston 6 is departed from the distribution bar 8 in control pipe 5, now in rear gas chamber 12
Vent cap 7 in the vent cap 7 of piston 6, tail pipe 13 and drill bit 4 for the gases at high pressure bottom hole of drill bit 4 is carried out clearly
Slag, the air pressure in rear gas chamber 12 is gradually reduced；
(4) return and stroke movement be alternately：After the air pressure in rear gas chamber 12 is gradually reduced to a certain extent, piston 6 is not
Impact again, impacter can be so that impacter be in diagram state in the presence of the feed power of rig, and impacter is once in figure
Show state, piston 6 is about to begin and carries out return motion；
(5) bottom hole scarfing cinder：The scarfing cinder process of drill bit 4 bottom hole is carried out in two gas circuits respectively, wherein one tunnel is that piston 6 is being carried out
During stroke and return, carry out scarfing cinder using the bottom hole that front air chamber 14 and rear gas chamber 12 pressure release are vented to drill bit 12；In addition
One tunnel be from distribution bar 8 distribution gases at high pressure P0 through plug head 16, the vent cap 7 of piston 6, tail pipe 13 and drill bit 4
Vent cap 7 all the time scarfing cinder is carried out to the bottom hole of drill bit 4.
Claims (5)
1. the adjustable high blast deep hole impacter of a kind of frequency of impact, including the rear joint fitting together successively, gun tube and
Front connector and drill bit, are set with control pipe in rear joint, be set with piston in gun tube, in rear joint, piston and drill bit all
It is provided with vent cap；Control pipe has front side distribution bar and rear side non-return valve and air distribution hole A, and air distribution hole A is followed by for connection
The confession air cavity in vent cap and distribution bar in head, is matched with the vent cap in piston in the front end of distribution bar；Its feature
It is：Described gun tube, the rear end of piston and control pipe and be followed by head circumference and become rear gas chamber, drill bit tail end equipped with piston nose
The tail pipe that matches of vent cap, gun tube, the front end of piston, tail pipe and drill bit and front connector surround front air chamber；Described join
Air distribution hole B is offered on the side wall of gas bar front end, and in its front end equipped with the plug head for adjusting air pressure and ventilation；Living
The rear end of plug offers the first passage being connected with its vent cap and the second passage, carries out return or stroke in piston
During motion, air distribution hole B realizes alternate communication with the first passage and the second passage respectively；The lateral wall of piston offers
Air drain A, B, air drain A connects the first passage and front air chamber, and air drain B connects the second passage and rear gas chamber；Inwall in gun tube
On offer annular groove A, for controlling being turned on and off between air drain A and front air chamber.
2. a kind of adjustable high blast deep hole impacter of frequency of impact according to claim 1, is characterized in that：Described join
It is provided with the mouth of pipe of gas bar front end towards mouth of pipe disposed inboard and for installing the annular edgewise of plug head；Described plug head has
"T"-shaped cross section structure, and passage is offered on plug head, wherein the stub end of plug head is located at supply intracavity, and tightly
It is attached on annular edgewise, the little head end of plug head is arranged in the installing hole that annular edgewise is surrounded.
3. a kind of adjustable high blast deep hole impacter of frequency of impact according to claim 1, is characterized in that：Described gas
Groove A and air drain B is in axial arranged along the lateral wall of piston.
4. a kind of adjustable high blast deep hole impacter of frequency of impact according to claim 1, is characterized in that：In gun tube
On inwall and the rear end face against front connector is installed with drill bit retaining ring and piston circlip successively.
5. a kind of adjustable high blast deep hole impacter of the frequency of impact according to claim 1 or 3, is characterized in that：Institute
State air distribution hole B to be made up of the 4-6 side wall through hole of cylindrical arrangement along distribution bar front end；First passage and the second ventilation
Hole offers and described through hole identical quantity, and is arranged circumferentially about each along piston, the first passage and the second passage pair
The air drain A and air drain B of equal number should be equipped with；Annular groove B is offered on the lateral wall of piston, in order to connect each air drain
A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611144766.2A CN106401460A (en) | 2016-12-13 | 2016-12-13 | Impact-frequency-adjustable high-wind-pressure deep hole impacter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611144766.2A CN106401460A (en) | 2016-12-13 | 2016-12-13 | Impact-frequency-adjustable high-wind-pressure deep hole impacter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106401460A true CN106401460A (en) | 2017-02-15 |
Family
ID=58084134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611144766.2A Pending CN106401460A (en) | 2016-12-13 | 2016-12-13 | Impact-frequency-adjustable high-wind-pressure deep hole impacter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106401460A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109184551A (en) * | 2018-11-21 | 2019-01-11 | 长沙黑金刚实业有限公司 | impactor |
| CN111927307A (en) * | 2020-09-03 | 2020-11-13 | 长沙天和钻具机械有限公司 | Air distribution device of impactor and matched impactor |
| CN113565431A (en) * | 2021-08-27 | 2021-10-29 | 中国铁建重工集团股份有限公司 | Pressure control method of air compressor for pneumatic down-the-hole hammer |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4015670A (en) * | 1974-09-06 | 1977-04-05 | Ian Graeme Rear | Fluid operated hammer |
| US4312412A (en) * | 1979-08-06 | 1982-01-26 | Dresser Industries, Inc. | Fluid operated rock drill hammer |
| US4333537A (en) * | 1978-11-24 | 1982-06-08 | Harris Jesse W | Impact drilling tool having improved valving |
| US4530408A (en) * | 1983-03-28 | 1985-07-23 | Toutant Roland J | Porting system for pneumatic impact hammer |
| US4932483A (en) * | 1988-02-16 | 1990-06-12 | Ian G. Rear | Down hole hammer |
| US5205363A (en) * | 1991-05-16 | 1993-04-27 | Pascale Jack H | Porting system for pneumatic impact hammer |
| CN101575941A (en) * | 2009-06-04 | 2009-11-11 | 宜昌市五环钻机具有限责任公司 | Valveless single-cylinder low or middle wind pressure downhole air hammer |
| CN206448770U (en) * | 2016-12-13 | 2017-08-29 | 武穴市明锐机械股份有限公司 | A kind of adjustable high blast deep hole impactor of frequency of impact |
-
2016
- 2016-12-13 CN CN201611144766.2A patent/CN106401460A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4015670A (en) * | 1974-09-06 | 1977-04-05 | Ian Graeme Rear | Fluid operated hammer |
| US4333537A (en) * | 1978-11-24 | 1982-06-08 | Harris Jesse W | Impact drilling tool having improved valving |
| US4312412A (en) * | 1979-08-06 | 1982-01-26 | Dresser Industries, Inc. | Fluid operated rock drill hammer |
| US4530408A (en) * | 1983-03-28 | 1985-07-23 | Toutant Roland J | Porting system for pneumatic impact hammer |
| US4932483A (en) * | 1988-02-16 | 1990-06-12 | Ian G. Rear | Down hole hammer |
| US5205363A (en) * | 1991-05-16 | 1993-04-27 | Pascale Jack H | Porting system for pneumatic impact hammer |
| CN101575941A (en) * | 2009-06-04 | 2009-11-11 | 宜昌市五环钻机具有限责任公司 | Valveless single-cylinder low or middle wind pressure downhole air hammer |
| CN206448770U (en) * | 2016-12-13 | 2017-08-29 | 武穴市明锐机械股份有限公司 | A kind of adjustable high blast deep hole impactor of frequency of impact |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109184551A (en) * | 2018-11-21 | 2019-01-11 | 长沙黑金刚实业有限公司 | impactor |
| CN111927307A (en) * | 2020-09-03 | 2020-11-13 | 长沙天和钻具机械有限公司 | Air distribution device of impactor and matched impactor |
| CN111927307B (en) * | 2020-09-03 | 2022-02-08 | 长沙天和钻具机械有限公司 | Air distribution device of impactor and matched impactor |
| CN113565431A (en) * | 2021-08-27 | 2021-10-29 | 中国铁建重工集团股份有限公司 | Pressure control method of air compressor for pneumatic down-the-hole hammer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4312412A (en) | Fluid operated rock drill hammer | |
| US6502650B1 (en) | Percussive down-the-hole hammer for rock drilling, and a drill bit used therein | |
| KR20090082182A (en) | Air actuated down-the-hole hammer and drill bit and foot valve for use in the hammer | |
| US4446929A (en) | Fluid operated rock drill hammer | |
| CN103228859A (en) | A down-the-hole hammer | |
| CN106401460A (en) | Impact-frequency-adjustable high-wind-pressure deep hole impacter | |
| AU2004201253B2 (en) | Down-the-hole Drill Assembly | |
| KR101005942B1 (en) | Boring Apparatus for Excavation | |
| CN203547523U (en) | Down-hole hammer for high-air-pressure drilling machine drilling work | |
| CN109296311A (en) | A kind of high pressure gas down-the-hole air hammer | |
| CN105156024B (en) | One kind rushes wear-resistant high life down-the-hole churn drilling tools soon | |
| US6499544B1 (en) | Percussive down-the-hole hammer for rock drilling, and a one-way valve used therein | |
| CN206448770U (en) | A kind of adjustable high blast deep hole impactor of frequency of impact | |
| US20160153236A1 (en) | Percussion hammer bit | |
| RU2703029C1 (en) | Device for interval-by-interval hydraulic fracturing of strong rocks | |
| CN110159187A (en) | A kind of High air-pressure DTH hammer | |
| CN207278184U (en) | Down-the-hole air hammer piston | |
| US6543557B2 (en) | Drill hammer assembly | |
| GB1437420A (en) | Method and apparatus for drilling in an earth formation | |
| CN105672872B (en) | A kind of oil/gas well downhole hydraulic hammer | |
| CN203296683U (en) | High-air-pressure down-hole impactor | |
| CN207332751U (en) | A kind of enclosed positive and negative circulation impact device | |
| CN218780293U (en) | Non-excavation reaming impacter | |
| CN203603755U (en) | Guide impactor for high wind pressure drilling operation | |
| KR20090118545A (en) | Rotary type boring apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170215 |