CN106246098B - With the inner casing formula down-the-hole air hammer for automatically adjusting capacity function - Google Patents
With the inner casing formula down-the-hole air hammer for automatically adjusting capacity function Download PDFInfo
- Publication number
- CN106246098B CN106246098B CN201610935849.7A CN201610935849A CN106246098B CN 106246098 B CN106246098 B CN 106246098B CN 201610935849 A CN201610935849 A CN 201610935849A CN 106246098 B CN106246098 B CN 106246098B
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- China
- Prior art keywords
- inner casing
- hole
- top connection
- automatically adjusting
- pressure limiting
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- 239000007789 gas Substances 0.000 claims abstract description 47
- 230000033001 locomotion Effects 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 32
- 230000000994 depressogenic effect Effects 0.000 claims description 3
- 206010022000 influenza Diseases 0.000 claims 1
- 238000005457 optimization Methods 0.000 description 9
- 238000006073 displacement reaction Methods 0.000 description 6
- 238000009826 distribution Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 206010020852 Hypertonia Diseases 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0406—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Safety Valves (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses with the inner casing formula down-the-hole air hammer for automatically adjusting capacity function, including top connection, outer tube, piston and drill bit, top connection is connected with piston with inner casing by entering valve seat in outer tube, non-return valve positioner and multigroup pressure limiting device for being used to control operating pressure are provided with top connection, enter the throughput self-checking device being provided with valve seat for automatically adjusting capacity, gases at high pressure are by top connection and enter the cooperation of valve seat and inner casing and realize that the high-frequency high-speed of piston back and forth does work motion, and the deslagging operation outside impactor is carried out by throughput self-checking device.
Description
Technical field
It is specifically a kind of that there is the inner casing for automatically adjusting capacity function the present invention relates to mining machinery technical field
Formula down-the-hole air hammer.
Background technology
The quick down-the-hole air hammer of Vehicles Collected from Market is mainly used in mine blasting, water well earth source, hill excavating and offshore filling engineering
Deng efficiency requirements more and more higher of the market to product.
The non-return valve of conventional impactor is typically mounted in top connection and surveyed, and need to such as change non-return valve and spring part, only
Top connection can be removed, and is acted on using the top connection of process kind by revolving force, close, dismounting difficulty is coordinated with outer tube；In addition, often
The regulating the qi flowing in the channels plug for advising impactor is single part, adjusted tolerance and need to take out and changed, and equally wasted time and energy；Furthermore conventional punching
Device is hit without pressure limiting device, once the use hypertonia of user, is added significantly to impactor piston spoilage, causes larger warp
Ji loss and duration influence.
Chinese patent CN104265159B discloses a kind of down-the-hole air hammer, including impactor main body, in impactor main body
Rear portion is provided with rear joint, and front portion is provided with front connector, offers hollow duct in rear joint, drill bit is connected with front connector, in drill bit
Bit central hole is offered, bit central hole connects with the end face inclined hole of drill bit, the hollow hole road outlet in impactor main body
Place is provided with non-return valve, and the distribution bar and check valve base in impactor main body are integral type structure, except introducing compressed air into
Outside cylinder body, also same cylinder body, piston realize the distribution action of piston movement together；Piston is arranged in inner casing, in inner casing and overcoat
Moved in pipe；Piston front portion is oriented to by guide sleeve, and piston nose is engaged with drill bit, in the centre porosity and drill bit in piston
Heart hole communicates.Present invention employs the piston structure of innovation, distribution bar, inner casing, rear joint trim designs are closed, the snap ring of innovation with
Front connector assembling structure, make whole impactor rational in infrastructure, operating efficiency is high, while also reduces production cost, but this is latent
The non-return valve of hole impactor is arranged in top connection and surveyed, and no pressure limiting device is wasted time and energy with tolerance device, maintenance replacing was adjusted,
Add the spoilage of impactor, reduction of service life.
The content of the invention
The technical problem to be solved in the present invention is to waste time and energy to solve to adjust tolerance to cause piston with hypertonia
The problem of damage, there is provided a kind of that there is the inner casing formula down-the-hole air hammer for automatically adjusting capacity function.
In order to solve the above problems, the present invention uses following technical scheme：
With the inner casing formula down-the-hole air hammer for automatically adjusting capacity function, including top connection, outer tube, piston and drill bit,
Top connection is connected with piston with inner casing by entering valve seat in outer tube, non-return valve positioner and multigroup use are provided with top connection
In the pressure limiting device of control operating pressure, enter be provided with the upper grooves of valve seat for the throughput that automatically adjusts capacity from
Dynamic adjusting means, gases at high pressure are by top connection and enter the cooperation of valve seat and inner casing and realize that the high-frequency high-speed of piston back and forth does work fortune
It is dynamic, and the deslagging operation outside impactor is carried out by throughput self-checking device.
It is further optimization of the present invention to such scheme below：
Non-return valve positioner includes being arranged on long-channel in top connection, close to the position of taper thread end face in long-channel
The non-return valve being coaxially disposed with top connection is provided with, the position corresponding with non-return valve end is provided with cooperation platform in long-channel
Rank, coordinate the obturating cup seat for being provided with step and coordinating with non-return valve.
Further optimization：Position in long-channel on the outside of obturating cup seat is provided with first for position limiting sealed bowl seat
Circlip for hole.
Further optimization：The other end of non-return valve is arranged with spring, and extend into spring base, is provided with spring base more
Individual air flue, the spring base excessively for being used for gas is positioned in long-channel by step.
Further optimization：Pressure limiting device includes the step for being set with certain angle of inclination and connecting outside with long-channel
Hole, stepped hole is interior to be depressed into ball sealer at step by pressure limiting spring, and the other end of pressure limiting spring is entered by pressure limiting spring base
Row positioning and regulation elastic force.
Further optimization：It is connected through a screw thread between pressure limiting spring base and top connection, pressure limiting spring base is provided centrally with
Central small hole, the second circlip for hole for preventing pressure limiting spring base from loosening is provided with the outside of pressure limiting spring base.
Further optimization：The central axis of pressure limiting device and the angle of impactor axis between 30-50 degree, discharge
Gas can be used for secondary auxiliary deslagging.
Further optimization：Throughput self-checking device includes being provided with the sealing valve that location hole of the spring section is U-shaped, close
One end of top connection is provided with step on envelope valve, the other end of sealing valve is in regulation spring base.
Further optimization：The outer circumference surface of sealing valve is the face of cylinder coordinated with regulation spring base.
Further optimization：More rounds are provided with the face of cylinder of sealing valve, regulation spring, position are provided with location hole of the spring
Between sealing valve and regulation spring base, enter on valve seat close to sealing valve end position be provided with for location sealing valve the
Three circlip for holes.
When in use, gases at high pressure enter for the non-return valve positioner, pressure limiting device and throughput self-checking device
After top connection, gases at high pressure compress the spring of non-return valve, open non-return valve, and gases at high pressure cross gas by the multiple of spring base afterwards
Passage enters in valve seat, and when the pressure of gases at high pressure exceedes allowable pressure, ball sealer is open, and gases at high pressure pass through sealing
Outside the side gap of ball and the aperture discharge impactor of spring base, it is depressured, need not now increases delivery of bailing air, gases at high pressure
Compression seal valve is completely into Packing spring seat, and gas is completely from gas passage discharge excessively；With being continuously increased for drilling well rice number,
The actual use pressure of impactor gradually reduces, and when the pressure of gases at high pressure is not less than allowable pressure, pressure limiting device is positioned at close
Envelope state,
When allowable pressure is less than the thrust of spring at this stage, spring promotes sealing valve displacement certain distance, now exposes
First round, gases at high pressure divide gas to carry out deslagging by the first round distributary division；When pressure is again lowered to certain phase,
Spring continues to press on sealing valve displacement, exposes second row, the 3rd round etc. according to displacement, increases the mistake of mud hole indirectly
Gas area, reach the purpose for increasing tolerance.
The present invention uses new type check valve positioner, without dismantling top connection i.e. replaceable corresponding non-return valve and spring etc.
Annex；Using delivery of bailing air self-checking device, automatically adjusting for the i.e. achievable delivery of bailing air of regulating the qi flowing in the channels plug is changed without tearing machine open；Adopt
With impactor operating pressure pressure limiting device, releasing pressure automatically, ensure that impactor works under rational operating pressure, it is easy to use,
Greatly reduce the spoilage of impactor, increased service life.
The invention will be further described with reference to the accompanying drawings and examples.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of inner casing formula down-the-hole air hammer of the embodiment of the present invention；
Accompanying drawing 2 is the knot of non-return valve of embodiment of the present invention positioner, delivery of bailing air self-checking device and pressure limiting device
Structure schematic diagram；
High pressure conditions figure when accompanying drawing 3 is work of the embodiment of the present invention；
Low-pressure state figure when accompanying drawing 4 is work of the embodiment of the present invention；
Low-pressure state figure when accompanying drawing 5 is work of the embodiment of the present invention；
Low-pressure state figure when accompanying drawing 6 is work of the embodiment of the present invention.
In figure：1- top connections；2- non-return valves；3- springs；4- spring bases；5- enters valve seat；6- throughput self-checking devices；
7- pistons；8- outer tubes；9- cups；10- rear chambers；11- drill bits；12- inner casings；13- guide sleeves；14- snap rings；15- lower contacts；16-
Pressure limiting device；51- crosses gas passage；73- central passages；121- it is upper gas passage；122- descended gas passage；The first holes of 101- bullet
Property back-up ring；102- obturating cup seats；103-O shape sealing rings；104- coordinates step；105- steps；106- crosses air flue；The holes of 201- second
Use circlip；202- spring bases；203- springs；204- ball sealers；205- stepped holes；601- sealing valves；602- adjusts spring；
603- adjusts spring base；The circlip for holes of 604- the 3rd；The 605- faces of cylinder；606- holes.
Embodiment
Embodiment, as shown in Figure 1 and Figure 2, there is the inner casing formula down-the-hole air hammer for automatically adjusting capacity function, including it is upper
Joint 1, outer tube 8, piston 7 and drill bit 11, outer tube 8 is interior to be connected top connection 1 with piston 7 with inner casing 12 by entering valve seat 5, is above connect
Non-return valve positioner and multigroup pressure limiting device 16 for being used to control operating pressure are provided with first 1, enters the upper grooves of valve seat 5
The throughput self-checking device 6 for automatically adjusting capacity is inside provided with, gases at high pressure are by top connection 1 and enter valve seat 5
Cooperation with inner casing 12 realizes that the high-frequency high-speed of piston 7 back and forth does work motion, and is rushed by throughput self-checking device 6
The deslagging operation hit outside device.
The non-return valve positioner includes being arranged on long-channel in top connection 1, close to taper thread end face in long-channel
Position be provided with the non-return valve 2 being coaxially disposed with top connection 1, the position corresponding with the end of non-return valve 2 setting in long-channel
Have and coordinate step 104, coordinate the obturating cup seat 102 for being provided with step 104 and coordinating with non-return valve 2.
Sealed between the obturating cup seat 102 and long-channel by O-ring seals 103, ensure that and impacted under the state of stopping the supple of gas or steam
Sealing effectiveness in device.
Position in the long-channel on the outside of obturating cup seat 102 is provided with first for position limiting sealed bowl seat 102
Circlip for hole 101.
The other end of the non-return valve 2 is arranged with spring 3, and extend into spring base 4, is provided with spring base 4 multiple
Air flue 106 is crossed for gas excessively, spring base 4 is positioned in long-channel by step 105.
The gas passage 106 of crossing is groove milling formula or through-hole type passage.
When changing, need to only dismantle the non-return valve 2 first circlip for hole 101, then take out obturating cup seat successively
102nd, non-return valve 2, spring 3 and spring base 4, it is convenient and swift without removing top connection 1.
The pressure limiting device 16 includes the stepped hole 205 for being set with certain angle of inclination and connecting outside with long-channel,
Ball sealer 204 is depressed at step by pressure limiting spring 203 in stepped hole 205, the other end of pressure limiting spring 203 passes through pressure limiting
Spring base 202 is positioned and adjusted elastic force.
It is connected through a screw thread between the pressure limiting spring base 202 and top connection 1, pressure limiting spring base 202 is provided centrally with
Central small hole, the outside of pressure limiting spring base 202 are provided with the second circlip for hole for preventing pressure limiting spring base 202 from loosening
201。
The central axis of the pressure limiting device 16 and the angle of impactor axis are between 30-50 degree, the gas of discharge
Available for secondary auxiliary deslagging.
The throughput self-checking device includes being provided with the sealing valve 601 that location hole of the spring section is U-shaped, sealing valve
One end of top connection 1 is provided with step on 601, the other end of sealing valve 601 is in regulation spring base 603.
The outer circumference surface of the sealing valve 601 is the face of cylinder 605 coordinated with regulation spring base 603.
More rounds 606 are provided with the face of cylinder 605 of the sealing valve 601, regulation spring is provided with location hole of the spring
602, between sealing valve 601 and regulation spring base 603.
The aperture in the hole 606, quantity, row can adjust use according to requirements.
It is described enter valve seat 5 on close to sealing valve 601 end position be provided with for location sealing valve 601 the 3rd hole use
Circlip 604.
It is described enter valve seat 5 be located in inner casing 12, be provided with inner casing 12 and multiple upper cross gas passages 121 and descended gas passage
122, lower end and the piston 7 of inner casing 12 are tightly connected.
It is described enter valve seat 5 on be provided with it is multiple cross gas passages 51, and connected respectively with the long-channel sealing in top connection 1,
Enter gas passage 51 will be connected with upper gas passage 121 of crossing excessively on valve seat 5 by connecting.
The other end of the piston 7 is connected by guide sleeve 13 with drill bit 11, and drill bit 11 is arranged on outer by lower contact 15
On pipe 8, snap ring 14 is provided between guide sleeve 13 and lower contact 15.
It is rear chamber 10 to enter in the inner casing 12 between valve seat 5 and piston 7, is cup 9 between piston 7 and guide sleeve 13.
Be provided with the inwall of the outer tube 8 with inner casing 12, piston 7 coordinate can be by the groove of gas.
The center of the piston 7 and drill bit 11 is separately provided for the central passage 73 of deslagging ventilation.
The non-return valve positioner, pressure limiting device 16 and throughput self-checking device 6 when in use, as Fig. 3, Fig. 4,
Shown in Fig. 5, Fig. 6, after gases at high pressure enter top connection 1, gases at high pressure compress the spring 3 of non-return valve 2, open non-return valve 2, afterwards
Gases at high pressure are entered in valve seat 5 by multiple gas passages 106 of crossing of spring base 4, when the pressure of gases at high pressure exceedes pressure allowable
During power, ball sealer 204 is open, and gases at high pressure discharge impact by the side gap of ball sealer 204 and the aperture of spring base 202
Outside device, it is depressured, need not now increases delivery of bailing air, gases at high pressure compression seal valve 601 is completely into Packing spring seat 603
Interior, gas is discharged from gas passage 51 excessively completely；With being continuously increased for drilling well rice number, the actual use pressure of impactor progressively drops
Low, when the pressure of gases at high pressure is not less than allowable pressure, pressure limiting device 16 is located at sealing state,
When allowable pressure is less than the thrust of spring 602 at this stage, spring 602 promotes the displacement certain distance of sealing valve 601,
Now expose the first round, gases at high pressure divide gas to carry out deslagging by the first round distributary division；When pressure is again lowered to one
When determining the stage, spring 602 continues to press on the displacement of sealing valve 601, exposes second row, the 3rd round etc. according to displacement, indirectly
The gas passing area of mud hole is increased, reaches the purpose for increasing tolerance.
The present invention uses new type check valve positioner, without dismantling top connection i.e. replaceable corresponding non-return valve and spring etc.
Annex；Using delivery of bailing air self-checking device, automatically adjusting for the i.e. achievable delivery of bailing air of regulating the qi flowing in the channels plug is changed without tearing machine open；Adopt
With impactor operating pressure pressure limiting device, releasing pressure automatically, ensure that impactor works under rational operating pressure, it is easy to use,
Greatly reduce the spoilage of impactor, increased service life.
Claims (8)
1. with the inner casing formula down-the-hole air hammer for automatically adjusting capacity function, including top connection（1）, outer tube（8）, piston（7）
And drill bit（11）, it is characterised in that：Outer tube（8）It is interior by entering valve seat（5）And inner casing（12）By top connection（1）And piston（7）Even
It is logical, top connection（1）Inside it is provided with non-return valve positioner and multigroup pressure limiting device for being used to control operating pressure（16）, enter valve seat
（5）Upper grooves in be provided with throughput self-checking device（6）, gases at high pressure pass through top connection（1）With entering valve seat（5）With
Inner casing（12）Cooperation realize piston（7）High-frequency high-speed back and forth do work motion, and pass through throughput self-checking device（6）Enter
Deslagging operation outside row impactor；Non-return valve positioner includes being arranged on top connection（1）Interior long-channel, it is close in long-channel
The position of taper thread end face is provided with and top connection（1）The non-return valve being coaxially disposed（2）, in long-channel and non-return valve（2）End
Corresponding position is provided with cooperation step（104）, coordinate step（104）Place is provided with and non-return valve（2）The obturating cup of cooperation
Seat（102）；Non-return valve（2）The other end be arranged with spring（3）, and it extend into spring base（4）It is interior, spring base（4）On be provided with
Multiple air flues excessively for being used for gas（106）, spring base（4）Pass through step（105）It is positioned in long-channel.
2. according to claim 1 have the inner casing formula down-the-hole air hammer for automatically adjusting capacity function, it is characterised in that：
It is located at obturating cup seat in long-channel（102）The position in outside is provided with for position limiting sealed bowl seat（102）The first hole elasticity
Back-up ring（101）.
3. according to claim 1 have the inner casing formula down-the-hole air hammer for automatically adjusting capacity function, it is characterised in that：
Pressure limiting device（16）Including the stepped hole for being set with certain angle of inclination and connecting outside with long-channel（205）, stepped hole
（205）It is interior to pass through pressure limiting spring（203）By ball sealer（204）It is depressed at step, pressure limiting spring（203）The other end pass through limit
Pressing spring seat（202）Positioned and adjusted elastic force.
4. according to claim 3 have the inner casing formula down-the-hole air hammer for automatically adjusting capacity function, it is characterised in that：
Pressure limiting spring base（202）With top connection（1）Between be connected through a screw thread, pressure limiting spring base（202）To be provided centrally with center small
Hole, pressure limiting spring base（202）Outside be provided with for preventing pressure limiting spring base（202）The second circlip for hole loosened
（201）.
5. according to claim 4 have the inner casing formula down-the-hole air hammer for automatically adjusting capacity function, it is characterised in that：
Pressure limiting device（16）Central axis and impactor axis angle between 30-50 degree, the gas of discharge can be used for secondary
Aid in deslagging.
6. according to claim 1 have the inner casing formula down-the-hole air hammer for automatically adjusting capacity function, it is characterised in that：
Throughput self-checking device includes being provided with the sealing valve of location hole of the spring（601）, sealing valve（601）Upper close top connection
（1）One end be provided with step, sealing valve（601）The other end positioned at regulation spring base in.
7. according to claim 6 have the inner casing formula down-the-hole air hammer for automatically adjusting capacity function, it is characterised in that：
Sealing valve（601）Outer circumference surface be and regulation spring base（603）The face of cylinder of cooperation（605）.
8. according to claim 7 have the inner casing formula down-the-hole air hammer for automatically adjusting capacity function, it is characterised in that：
Sealing valve（601）The face of cylinder（605）On be provided with more rounds（606）, regulation spring is provided with location hole of the spring（602）,
Enter valve seat（5）Upper close sealing valve（601）End position be used for location sealing valve being provided with（601）The 3rd hole with elasticity keep off
Circle（604）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610935849.7A CN106246098B (en) | 2016-11-01 | 2016-11-01 | With the inner casing formula down-the-hole air hammer for automatically adjusting capacity function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610935849.7A CN106246098B (en) | 2016-11-01 | 2016-11-01 | With the inner casing formula down-the-hole air hammer for automatically adjusting capacity function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106246098A CN106246098A (en) | 2016-12-21 |
| CN106246098B true CN106246098B (en) | 2018-03-30 |
Family
ID=57600605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610935849.7A Active CN106246098B (en) | 2016-11-01 | 2016-11-01 | With the inner casing formula down-the-hole air hammer for automatically adjusting capacity function |
Country Status (1)
| Country | Link |
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| CN (1) | CN106246098B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5666572A (en) * | 1979-11-05 | 1981-06-05 | Sugino Mach:Kk | Automatic unloader valve with built-in pressure control mechanism |
| WO1998008012A1 (en) * | 1996-08-19 | 1998-02-26 | Australian Water Products Pty. Ltd. | Outlet pressure limiting valve |
| US8800690B2 (en) * | 2008-03-31 | 2014-08-12 | Center Rock Inc. | Down-the-hole drill hammer having a reverse exhaust system and segmented chuck assembly |
| CN201301664Y (en) * | 2008-11-26 | 2009-09-02 | 宜昌市五环钻机具有限责任公司 | Down-the-hole hammer |
| CN203321313U (en) * | 2013-06-28 | 2013-12-04 | 宜昌市五环钻机具有限责任公司 | Down-hole hammer |
| CN206129145U (en) * | 2016-11-01 | 2017-04-26 | 山东中瑞工程机械有限公司 | Inner casing formula downhole air hammer with automatically regulated discharge of fumes and gas function |
-
2016
- 2016-11-01 CN CN201610935849.7A patent/CN106246098B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106246098A (en) | 2016-12-21 |
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