CN106246097B - The top connection device of down-the-hole air hammer - Google Patents
The top connection device of down-the-hole air hammer Download PDFInfo
- Publication number
- CN106246097B CN106246097B CN201610934807.1A CN201610934807A CN106246097B CN 106246097 B CN106246097 B CN 106246097B CN 201610934807 A CN201610934807 A CN 201610934807A CN 106246097 B CN106246097 B CN 106246097B
- Authority
- CN
- China
- Prior art keywords
- top connection
- pressure limiting
- return valve
- channel
- spring base
- 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.)
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Links
- 238000005273 aeration Methods 0.000 claims abstract description 13
- 230000000994 depressogenic effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 206010020852 Hypertonia Diseases 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering 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
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
- F16K17/048—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 combined with other safety valves, or with pressure control devices
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses the top connection devices of down-the-hole air hammer, it include the top connection being connect with outer tube, it is provided in top connection for the non-return valve positioning device of positioning check valve and the pressure limiting device for automatically controlling operating pressure, is connected to non-return valve with piston by central aeration pipe in outer tube.The present invention is by new type check valve positioning device without dismantling the attachmentes such as the i.e. replaceable corresponding non-return valve of top connection and spring, it can be with releasing pressure automatically by pressure limiting device, ensure that impactor works under rational operating pressure, it is compact-sized simple, convenient for safeguarding, improved gas efficiency, and interior plenum system also to water well operation when obstruction have a degree of avoid, use scope is expanded, the service life of impactor is increased.
Description
Technical field
The present invention relates to mining machinery technical fields, specifically the top connection device of 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 etc.,
Market is higher and higher to the efficiency requirements of product.
The impactor of conventional type realizes that the impact of impactor is done work mainly by the distribution effect of inner casing and piston, with routine
For A series, piston other than an intermediate through-hole, itself without other holes exist among piston, piston move up and down according to
Coordinate by inner casing and outside piston air flue, to make piston form reciprocating motion, the high pressure gas of piston motion between front and back room
Enter the front and back room of piston by the cavity between inner casing and outer tube.
In addition, the non-return valve of conventional impactor is typically mounted in top connection and surveys, such as need to change non-return valve and spring portion
Part can only remove top connection, and be acted on by rotary force using the top connection of process kind, and close with outer tube cooperation, dismounting is difficult；This
Outside, conventional impactor is without pressure limiting device, once the use hypertonia of user, is added significantly to impactor piston spoilage,
Larger economic loss and duration is caused to influence.
Invention content
The problem to be solved in the present invention is to solve top connection dismounting difficulty and prevent hypertonia damage impact
The problem of device, provides a kind of top connection device of down-the-hole air hammer.
To solve the above-mentioned problems, the present invention uses following technical scheme：
The top connection device of down-the-hole air hammer includes the top connection being connect with outer tube, is provided in top connection for positioning
The non-return valve positioning device of non-return valve and the pressure limiting device for automatically controlling operating pressure, outer tube is interior will by central aeration pipe
Top connection is connected to piston.
It is that the present invention advanced optimizes said program below：
Non-return valve positioning device includes the long-channel being arranged in top connection, and non-return valve is arranged in long-channel close to cone spiral shell
The position of line end face is simultaneously coaxially disposed with top connection.
It advanced optimizes：Position corresponding with non-return valve end is provided with cooperation step in long-channel, coordinates at step
Obturating cup seat with non-return valve fitted seal is installed, is sealed by O-ring seals between obturating cup seat and long-channel.
It advanced optimizes：Position in long-channel on the outside of obturating cup seat is provided with the elasticity for position limiting sealed bowl seat
Baffle ring.
It advanced optimizes：The other end of non-return valve is arranged with check valve spring, and extend into spring base, is set on spring base
Multiple gas channel, spring bases excessively for being used for gas are equipped with to be positioned in long-channel by step.
It advanced optimizes：Pressure limiting device includes the step for being arranged with certain angle of inclination and being connected to outside with long-channel
Hole.
It advanced optimizes：Ball sealer is depressed at step by pressure limiting spring in stepped hole, the other end of pressure limiting spring
Elastic force is positioned and adjusted by pressure limiting spring base.
It advanced optimizes：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 is provided with the internal circlip for preventing pressure limiting spring base from loosening on the outside of pressure limiting spring base.
It advanced optimizes：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.
The non-return valve positioning device and pressure limiting device when in use, after high pressure gas enters top connection, high pressure gas pressure
The spring of contracting non-return valve opens non-return valve, and high pressure gas enters central aeration pipe by multiple gas channels of crossing of spring base later
Interior, when the pressure of high pressure gas is less than allowable pressure, pressure limiting device is located at sealing state；When the pressure of high pressure gas is more than
When allowable pressure, ball sealer is open, and impact is discharged by the side gap of ball sealer 204 and the aperture of spring base in high pressure gas
Outside device, it is depressured.
The present invention is by new type check valve positioning device without dismantling the i.e. replaceable corresponding non-return valve of top connection and spring etc.
Attachment can ensure that impactor works under rational operating pressure by pressure limiting device with releasing pressure automatically, compact-sized simple,
Convenient for safeguarding, improved gas efficiency, and interior plenum system also to water well operation when obstruction have it is a degree of avoid, expand
Big use scope, increases the service life of impactor.
The invention will be further described with reference to the accompanying drawings and examples.
Description of the drawings
Attached drawing 1 is the structural schematic diagram of down-the-hole air hammer of the embodiment of the present invention；
Attached drawing 2 is the structural schematic diagram of non-return valve of embodiment of the present invention positioning device and pressure limiting device；
Attached drawing 3 is the sealing state figure of pressure limiting device of the embodiment of the present invention；
Attached drawing 4 is the pressure release state diagram of pressure limiting device of the embodiment of the present invention；
In figure：1- top connections；2- non-return valves；3- check valve springs；4- spring bases；5- central aeration pipes；7- pistons；Outside 8-
Pipe；11- drill bits；12- axis pins；16- pressure limiting devices；101- circlips；102- obturating cup seats；103-O shape sealing rings；104- matches
Close step；105- steps；106- crosses gas channel；201- internal circlips；202- pressure limiting spring bases；203- pressure limiting springs；
204- ball sealers；205- stepped holes.
Specific implementation mode
Embodiment, as shown in Figure 1 and Figure 2, the top connection device of down-the-hole air hammer includes the top connection 1 being connect with outer tube 8,
It is provided in top connection 1 for the non-return valve positioning device of positioning check valve 2 and the limit for automatically controlling aero operating pressure
Pressure device 16, outer tube 8 is interior to be connected to top connection 1 with piston 7 by central aeration pipe 5.
The non-return valve positioning device includes the long-channel being arranged in top connection 1, and the setting of non-return valve 2 is leaned in long-channel
The position of nearly taper thread end face is simultaneously coaxially disposed with top connection 1, and position corresponding with 2 end of non-return valve is provided in long-channel
Coordinate step 104, coordinates the obturating cup seat 102 being equipped at step 104 with 2 fitted seal of non-return valve, obturating cup seat 102 and length
It is sealed by O-ring seals 103 between channel.
Position in the long-channel positioned at 102 outside of obturating cup seat is provided with the elasticity for position limiting sealed bowl seat 102
Baffle ring 101.
The other end of the non-return valve 2 is arranged with check valve spring 3, and extend into spring base 4, is arranged on spring base 4
There are multiple gas channels 106 excessively for being used for gas, spring base 4 is positioned at by step 105 in long-channel.
The other end of the long-channel is connect by axis pin 12 with central aeration pipe 5, and by central aeration pipe 5 and top connection
1 is tightly connected.
The gas channel 106 of crossing is groove milling formula or through-hole type channel.
When replacing, need to only dismantle the non-return valve 2 circlip 101, then take out obturating cup seat 102, check successively
Valve 2, check valve spring 3 and spring base 4, it is convenient and efficient without removing top connection 1.
The pressure limiting device 16 includes the stepped hole 205 for being arranged with certain angle of inclination and being connected to 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 is 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 internal circlip 201 for preventing pressure limiting spring base 202 from loosening.
The central axis of the pressure limiting device 16 and the angle of impactor axis are between 30-50 degree, the gas of discharge
It can be used for secondary auxiliary deslagging.
The other end of the central aeration pipe 5 stretches into piston 7, and high pressure gas passes through top connection 1 and central aeration pipe 5
Realize that the high-frequency high-speed of piston 7 back and forth does work movement, to drive the work of drill bit 11.
To be fitted close between the central aeration pipe 5 and top connection 1, fit clearance is less than 0.1mm, the top connection 1
With non-threaded section of 8 inner wall of outer tube to be fitted close, fit clearance is less than 0.1mm, can be effectively ensured in this way central aeration pipe with
The concentricity of piston cooperation meets the requirements.
When in use, as shown in Figure 3, Figure 4, high pressure gas enters top connection for the non-return valve positioning device and pressure limiting device
After 1, high pressure gas compresses the spring 3 of non-return valve 2, opens non-return valve 2, and high pressure gas crosses gas by the multiple of spring base 4 later
Channel 106 enters in central aeration pipe 5, and when the pressure of high pressure gas is less than allowable pressure, pressure limiting device is located at seal shape
State；When the pressure of high pressure gas is more than allowable pressure, ball sealer 204 is open, the side that high pressure gas passes through ball sealer 204
The aperture of gap and spring base 202 is discharged outside impactor, is depressured.
The present invention is by new type check valve positioning device without dismantling the i.e. replaceable corresponding non-return valve of top connection and spring etc.
Attachment can ensure that impactor works under rational operating pressure by pressure limiting device with releasing pressure automatically, compact-sized simple,
Convenient for safeguarding, improved gas efficiency, and interior plenum system also to water well operation when obstruction have it is a degree of avoid, expand
Big use scope, increases the service life of impactor.
Claims (6)
1. the top connection device of down-the-hole air hammer, including with outer tube（8）The top connection of connection（1）, it is characterised in that：Top connection
（1）It is inside provided with for positioning check valve（2）Non-return valve positioning device and pressure limiting device for automatically controlling operating pressure
（16）, outer tube（8）Inside pass through central aeration pipe（5）By top connection（1）And piston（7）Connection；Non-return valve positioning device includes setting
It sets in top connection（1）Interior long-channel, non-return valve（2）Position close to taper thread end face and and top connection are set in long-channel
（1）Coaxial arrangement；Pressure limiting device（16）It include the stepped hole for being arranged with certain angle of inclination and being connected to 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）'s
The other end passes through pressure limiting spring base（202）Positioned and adjusted elastic force.
2. the top connection device of down-the-hole air hammer according to claim 1, it is characterised in that：In long-channel and non-return valve
（2）The corresponding position in end is provided with cooperation step（104）, coordinate step（104）Place is equipped with and non-return valve（2）Coordinate close
The obturating cup seat of envelope（102）, obturating cup seat（102）Pass through O-ring seals between long-channel（103）It is sealed.
3. the top connection device of down-the-hole air hammer according to claim 2, it is characterised in that：It is located at obturating cup in long-channel
Seat（102）The position in outside is provided with for position limiting sealed bowl seat（102）Circlip（101）.
4. the top connection device of down-the-hole air hammer according to claim 3, it is characterised in that：Non-return valve（2）The other end
It is arranged with check valve spring（3）, and it extend into spring base（4）It is interior, spring base（4）On be provided with it is multiple be used for gas to cross gas logical
Road（106）, spring base（4）Pass through step（105）It is positioned in long-channel.
5. the top connection device of down-the-hole air hammer according to claim 4, 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）Be provided centrally with central small hole, pressure limiting spring base（202）
Outside be provided with for preventing pressure limiting spring base（202）The internal circlip of loosening（201）.
6. the top connection device of down-the-hole air hammer according to claim 5, it is characterised in that：Pressure limiting device（16）Center
For the angle of axis and impactor axis between 30-50 degree, the gas of discharge can be used for secondary auxiliary deslagging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610934807.1A CN106246097B (en) | 2016-11-01 | 2016-11-01 | The top connection device of down-the-hole air hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610934807.1A CN106246097B (en) | 2016-11-01 | 2016-11-01 | The top connection device of down-the-hole air hammer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106246097A CN106246097A (en) | 2016-12-21 |
| CN106246097B true CN106246097B (en) | 2018-07-20 |
Family
ID=57600603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610934807.1A Active CN106246097B (en) | 2016-11-01 | 2016-11-01 | The top connection device of down-the-hole air hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106246097B (en) |
Family Cites Families (7)
| 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 |
| CN204371095U (en) * | 2014-12-26 | 2015-06-03 | 宜昌市五环钻机具有限责任公司 | A kind of efficient down-hole hammer |
| CN206129146U (en) * | 2016-11-01 | 2017-04-26 | 山东中瑞工程机械有限公司 | Downhole air hammer's top connection device |
-
2016
- 2016-11-01 CN CN201610934807.1A patent/CN106246097B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106246097A (en) | 2016-12-21 |
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