CN106437493A - Down-hole hammer for deep-hole operation - Google Patents
Down-hole hammer for deep-hole operation Download PDFInfo
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- CN106437493A CN106437493A CN201610933672.7A CN201610933672A CN106437493A CN 106437493 A CN106437493 A CN 106437493A CN 201610933672 A CN201610933672 A CN 201610933672A CN 106437493 A CN106437493 A CN 106437493A
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- Prior art keywords
- hole
- pressure limiting
- spring base
- pressure
- piston
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- 238000009423 ventilation Methods 0.000 claims abstract description 21
- 230000033001 locomotion Effects 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 70
- 238000005273 aeration Methods 0.000 claims description 30
- 238000007789 sealing Methods 0.000 claims description 24
- 238000012856 packing Methods 0.000 claims description 9
- 239000003818 cinder Substances 0.000 claims description 4
- 230000000994 depressogenic effect Effects 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000009826 distribution Methods 0.000 abstract description 25
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 230000001276 controlling effect Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000036772 blood pressure Effects 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
- 230000001737 promoting effect Effects 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005304 joining 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
- 238000005457 optimization 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
The invention discloses a down-hole hammer for deep-hole operation. The down-hole hammer comprises an upper joint, an outer pipe and a drill bit, wherein a central vent pipe air distribution device and a piston are mounted in the outer pipe; the upper joint is communicated with the piston through the central vent pipe air distribution device; a check valve positioning device and a plurality of groups of pressure limiting devices for controlling working pressure are arranged in the upper joint; an automatic ventilation volume regulation device for residue removal air volume control is arranged at the tail end of the central vent pipe air distribution device; high-frequency and high-speed reciprocating working movement of the piston is realized by high-pressure air through the upper joint and the central vent pipe air distribution device. According to the down-hole hammer, an automatic piston air distribution principle and an inner cylinder-free design are adopted, corresponding accessories such as a check valve and a spring can be replaced without disassembling the upper joint due to the novel check valve positioning device, the residue removal air volume can be automatically regulated without disassembling the down-hole hammer to replace an air regulation plug due to the automatic ventilation volume regulation device, and pressure can be automatically relieved through the pressure limiting devices to ensure that the hammer works under reasonable working pressure; the down-hole hammer is compact and simple in structure and convenient to maintain, and the ventilation efficiency is improved; moreover, blockage during well operation is also avoided to a certain extent by an internal air supply manner, so that the application range is widened, and the service life of the hammer is prolonged.
Description
Technical field
The present invention relates to a kind of down-the-hole air hammer, dive more particularly to a kind of highly reliable easy care deep hole operation
Hole impacter, belongs to mining machinery technical field.
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.,
The efficiency requirements more and more higher to product for the market.
The impacter of conventional type acts on, mainly by the distribution of inner casing and piston, the impact acting realizing impacter, with conventional
As a example A series, piston in addition to a middle through hole, itself no other holes exist with piston in the middle of, piston move up and down according to
Inner cylinder is coordinated with outside piston air flue, so that piston forms reciprocating motion, the gases at high pressure of piston movement between in front and back room
Enter the room in front and back of piston by the cavity between inner casing and outer tube.
In addition, the non-return valve of conventional impacter is typically mounted in top connection and surveys, such as need to change the parts such as non-return valve and spring, only
Top connection can be removed, and use process kind top connection to be acted on by revolving force, with outer tube cooperation closely, dismounting is difficult；Additionally, often
The regulating QI plug of rule impacter is single part, adjusted tolerance and need to take out and changed, and equally wasted time and energy；Furthermore, conventional punching
Hit device all no pressure limiting devices, once user's makes
With hypertonia, it is added significantly to impactor piston spoilage, cause larger economic loss and duration impact.
Content of the invention
The problem to be solved in the present invention is to provide one kind simple and compact for structure, is easy to safeguard, improved gas efficiency,
And interior plenum system also has a certain degree of highly reliable easy care deep hole operation avoiding to obstruction during water well operation
Down-the-hole air hammer.
In order to solve the above problems, the present invention employs the following technical solutions：
Deep hole operation down-the-hole air hammer, including top connection, outer tube and drill bit, be provided with outer tube central aeration pipe air distributing device and
Piston, top connection is connected by central aeration pipe air distributing device with piston, is provided with non-return valve positioner and multigroup in top connection
For controlling the pressure limiting device of operating pressure, the end of central aeration pipe air distributing device is provided with leading to for letting cinder control air quantity
Tolerance self-checking device, gases at high pressure are reciprocal with the high-frequency high-speed that central aeration pipe air distributing device realizes piston by top connection
Acting motion.
The following is the optimization further to such scheme for the present invention：
Non-return valve positioner includes the long-channel being arranged in top connection, near the setting of the position of taper thread end face in long-channel
Have non-return valve, the position corresponding with non-return valve end is provided with cooperation step in long-channel, coordinate be provided with step with inverse
The only obturating cup seat of valve cooperation.
Optimize further：The other end of non-return valve is arranged with check valve spring, and extend in spring base, and spring base sets
It is equipped with multiple gas passages excessively for gas excessively, spring base is positioned in long-channel by step.
Optimize further：Pressure limiting device includes the step connecting with the setting of certain angle of inclination and by outside with long-channel
Hole, ball sealer is depressed at step by pressure limiting spring by step in the hole, and the other end of pressure limiting spring is entered by pressure limiting spring base
Row positioning and regulation elastic force；
Optimize further：Be threaded connection between pressure limiting spring base and top connection, pressure limiting spring base be provided centrally with center
Aperture, the outside of pressure limiting spring base is provided with the internal circlip for preventing pressure limiting spring base from loosening.
Optimize further：The angle of the central axis of pressure limiting device and impacter axis is located between 30-50 degree, discharge
Gas can be used for secondary auxiliary deslagging.
Optimize further：It is the close of U-shaped that ventilation self-checking device includes being internally provided with location hole of the spring section
Envelope valve, one end of sealing valve is provided with step, and the other end of sealing valve is located in spring base.
Optimize further：The outer circumference surface of sealing valve is the face of cylinder with spring base cooperation, the face of cylinder is provided with multiple rows of
Hole.
Optimize further：The end of Packing spring seat is provided with the back-up ring for location sealing spring base.
Optimize further：Central aeration pipe air distributing device includes during one end stretched into and be fixedly connected by bearing pin in top connection
Heart breather, is to be fitted close between central aeration pipe and top connection, fit clearance is less than 0.1mm, described top connection and outer tube
Non-threaded section of inwall is to be fitted close, and fit clearance is less than 0.1mm.
Described non-return valve positioner and pressure limiting device when using, after gases at high pressure enter top connection, gases at high pressure pressure
The spring of contracting non-return valve, opens non-return valve, and gases at high pressure enter central aeration pipe by multiple gas passages of crossing of spring base afterwards
Interior, when the pressure of gases at high pressure is not less than allowable pressure, pressure limiting device is located at sealing state；When the pressure of gases at high pressure exceedes
During allowable pressure, ball sealer is open, and the aperture of side gap and spring base that gases at high pressure pass through ball sealer discharges impacter
Outward, carry out blood pressure lowering.
Described ventilation self-checking device use when, gases at high pressure enter central aeration pipe when, when gas pressure surpass
When crossing setting value, now need not increase delivery of bailing air, completely in Packing spring seat, gas is complete for gases at high pressure compression seal valve
Entirely cross gas passage from strip to discharge, with being continuously increased of drilling well rice number, the actually used pressure of impacter gradually reduces；Work as fall
As little as certain phase, is less than spring in this phase thrust using pressure, spring promotes sealing valve displacement certain distance, now reveals
Go out the first round, gases at high pressure divide gas to carry out deslagging by the first round distributary division；When using reduced pressure again to certain
During the stage, spring continues to press on sealing valve displacement, exposes second row, the 3rd round etc., the row of increasing indirectly according to displacement
The gas passing area of cinder hole, reaches the purpose increasing tolerance.
The present invention adopts piston from distribution principle, the no design of inner casing, need not be dismantled by new type check valve positioner
Top connection is the adnexaes such as replaceable corresponding non-return valve and spring, need not tear machine open by ventilation self-checking device and change regulating QI plug
Can achieve automatically adjusting of delivery of bailing air, can be with releasing pressure automatically it is ensured that impacter be in rational work pressure by pressure limiting device
Work under power, compact conformation is simple, be easy to safeguard, improve gas efficiency, and interior plenum system is also to resistance during water well operation
Be plugged with a certain degree of avoid, expand range, increased the service life of impacter.
The invention will be further described with reference to the accompanying drawings and examples.
Brief description
Accompanying drawing 1 is the structural representation of embodiment of the present invention down-the-hole air hammer；
Accompanying drawing 2 is the structural representation of embodiment of the present invention non-return valve positioner and pressure limiting device；
Accompanying drawing 3 is the sealing state figure of embodiment of the present invention pressure limiting device；
Accompanying drawing 4 is the pressure release state diagram of embodiment of the present invention pressure limiting device；
Accompanying drawing 5 is the structural representation of embodiment of the present invention ventilation self-checking device；
Accompanying drawing 6 is the high pressure conditions figure of embodiment of the present invention ventilation self-checking device；
Accompanying drawing 7 is the low-pressure state figure of embodiment of the present invention ventilation self-checking device；
Accompanying drawing 8 is the low-pressure state figure of embodiment of the present invention ventilation self-checking device；
Accompanying drawing 9 is the low-pressure state figure of embodiment of the present invention ventilation self-checking device.
In figure：1- top connection；2- non-return valve；3- check valve spring；4- spring base；5- central aeration pipe；6- ventilation is certainly
Dynamic adjusting means；7- piston；8- outer tube；9- cup；10- rear chamber；11- drill bit；12- bearing pin；13- fairlead；14- snap ring；15-
Lower contact；16- pressure limiting device；51- strip crosses gas passage；71- first gas distribution channels；72- second gas distribution channels；73- center leads to
Road；101- circlip；102- obturating cup seat；103-O shape sealing ring；104- coordinates step；105- step；106- crosses gas and leads to
Road；201- internal circlip；202- pressure limiting spring base；203- pressure limiting spring；204- ball sealer；205- stepped hole；601- is close
Envelope valve；602- Packing spring；603- Packing spring seat；604- back-up ring；The 605- face of cylinder；606- hole.
Specific embodiment
Embodiment, as shown in Figure 1, Figure 2, Figure 5, deep hole operation down-the-hole air hammer, including top connection 1, outer tube 8 and drill bit
11, central aeration pipe air distributing device and piston 7 are installed in outer tube 8, central aeration pipe air distributing device is by top connection 1 and piston 7
Connection, is provided with non-return valve positioner and multigroup pressure limiting device 16 for controlling operating pressure, central aeration in top connection 1
The end of pipe air distributing device is provided with the ventilation self-checking device for letting cinder control air quantity, and gases at high pressure pass through top connection
1 high-frequency high-speed realizing piston 7 with central aeration pipe air distributing device back and forth does work motion.
Described non-return valve positioner includes the long-channel being arranged in top connection 1, near 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 non-return valve 2 end is arranged in long-channel
There is cooperation step 104, the obturating cup seat 102 with non-return valve 2 cooperation is installed at cooperation step 104, obturating cup seat 102 is logical with long
Sealed by O-ring seals 103 between road.
The position being located at obturating cup seat 102 outside in described long-channel is provided with the elasticity for position limiting sealed bowl seat 102
Back-up ring 101.
The other end of described non-return valve 2 is arranged with check valve spring 3, and extend in spring base 4, and spring base 4 is arranged
There are multiple gas passages 106 excessively for gas excessively, spring base 4 is positioned in long-channel by step 105.
Described gas passage 106 of crossing is groove milling formula or through-hole type passage.
Described non-return valve 2 when changing, circlip 101 of only need to dismantling, then take out obturating cup seat 102, check successively
Valve 2, check valve spring 3 and spring base 4, need not remove top connection 1, convenient and swift.
Described pressure limiting device 16 includes the stepped hole 205 connecting with the setting of certain angle of inclination and by outside with long-channel,
By pressure limiting spring 203, ball sealer 204 is depressed at step 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 threaded connection between described pressure limiting spring base 202 and top connection 1, being provided centrally with of pressure limiting spring base 202
Central small hole, the outside of pressure limiting spring base 202 is provided with the internal circlip 201 for preventing pressure limiting spring base 202 from loosening.
The angle of the central axis of described pressure limiting device 16 and impacter axis is located between 30-50 degree, expellant gas
Can be used for secondary auxiliary deslagging.
Described central aeration pipe air distributing device includes one end and stretches into being fixedly connected by bearing pin 12 in top connection 1
Central aeration pipe 5, the other end of central aeration pipe 5 stretches in the central passage 73 of piston 7, and ventilation automatically adjusts dress
Put on the end being arranged on central aeration pipe 5.
Described ventilation self-checking device includes being internally provided with the sealing valve 601 that location hole of the spring section is U-shaped,
One end of sealing valve 601 is provided with step, and the other end of sealing valve 601 is located in spring base 603.
The outer circumference surface of described sealing valve 601 is the face of cylinder 605 with spring base 603 cooperation, and the face of cylinder 605 is provided with
Many rounds 606,
It is provided with Packing spring 602, between sealing valve 601 and Packing spring seat 603 in described location hole of the spring.
The aperture in described hole 606, quantity, row can adjust use according to requirements.
The end of described Packing spring seat 603 is provided with the back-up ring 604 for location sealing spring base 603.
On described central aeration pipe 5, the position near ventilation self-checking device is provided with multiple strips and crosses gas passage
51.
It is to be fitted close between described central aeration pipe 5 and top connection 1, fit clearance is less than 0.1mm, described top connection 1
Be to be fitted close with non-threaded section of outer tube 8 inwall, fit clearance is less than 0.1mm, so can be effectively ensured central aeration pipe with
The axiality of piston cooperation meets the requirements.
Form rear chamber 10 between top connection 1 and piston 7, the position being located at piston 7 side in outer tube 8 sets in described outer tube 8
It is equipped with fairlead 13, between piston 7 and fairlead 13, form cup 9.
Keep at a certain distance away on described piston 7 the first distribution duct 71 and the second air distribution hole being tiltedly installed with for distribution
Road 72, and connect with central passage 73 respectively.
The axial length that described strip crosses gas passage 51 is less than the first distribution duct 71 and the second distribution duct 72 in piston 7
Between axial distance.
Described fairlead 13 is steel part, and the O-ring seals groove that the outer surface of fairlead 13 is provided with 4-6 road is easy to fairlead
Positioning and sealing, the axially position of fairlead 13 is steel wire clamping ring formula.
The lower end of described piston 7 is contacted with drill bit 11 by fairlead 13, is provided with card between fairlead 13 and drill bit 11
Ring 14, drill bit 11 is arranged in outer tube 8 by lower contact 15.
Described snap ring 14 is double semi-circular, and inner ring is two-sided convex structure, has more preferable fiting effect with drill bit 11.
The central passage 73 blown by force is separately provided on described piston 7 and drill bit 11 axle center, and piston 7 descending with
Connection during drill bit 11 contact.
The two ends of described trocar sheath 8 and internal symmetry design, when wearing and tearing larger at one end, changeable above-below direction uses, and carries
To overall service life.
, when using, as shown in Figure 3, Figure 4, gases at high pressure enter and connect for described non-return valve positioner and pressure limiting device 16
After 1, gases at high pressure compress the spring 3 of non-return valve 2, open non-return valve 2, and gases at high pressure pass through multiple mistakes of spring base 4 afterwards
Gas passage 106 enters in central aeration pipe 5, and when the pressure of gases at high pressure is not less than allowable pressure, pressure limiting device 16 is located at close
Envelope state；When the pressure of gases at high pressure exceedes allowable pressure, ball sealer 204 is open, and gases at high pressure pass through ball sealer 204
The aperture of side gap and spring base 202 is discharged outside impacter, carries out blood pressure lowering.
When using, as shown in Fig. 6, Fig. 7, Fig. 8, Fig. 9, gases at high pressure enter center to described ventilation self-checking device
During breather 5, when gas pressure exceedes setting value, now need not increase delivery of bailing air, gases at high pressure compression seal valve 601 is complete
In full entrance Packing spring seat 603, gas is crossed gas passage 51 from strip completely and is discharged, and with being continuously increased of drilling well rice number, rushes
The actually used pressure hitting device gradually reduces；When being reduced to certain phase, it is less than the thrust in this stage for the spring 602 using pressure
When, spring 602 promotes sealing valve 601 displacement certain distance, now exposes the first round, and gases at high pressure pass through the first round shunting
Portion gas carry out deslagging；When pressure is again lowered to certain phase, spring 602 continues to press on sealing valve 601 displacement, according to
Displacement exposes second row, the 3rd round etc., indirectly increases the gas passing area of mud hole, reaches the mesh increasing tolerance
's.
When normal operation uses, after gases at high pressure enter top connection 1, gases at high pressure compress the spring 3 of non-return valve 2, open
Open non-return valve 2, gases at high pressure are entered in central aeration pipe 5 by multiple gas passages 106 of crossing of spring base 4 afterwards, pass through simultaneously
Pressure limiting device 16 carries out automatic Regulation, and ventilation self-checking device 6 is entered by the position that the pressure of gas adjusts sealing valve 601
Row deslagging, simultaneously gases at high pressure by the strip of central aeration pipe 5 cross gas passage 51 enter piston 7 on the first distribution duct
71st, in the second distribution duct 72；When piston 7 is descending, strip cross gas passage 51 be located at piston 7 upper end when, strip crosses gas passage 51
Connect with the second distribution duct 72, gases at high pressure enter cup 9 by the second distribution duct 72, thus promoting piston 7 up, when
Piston 7 is up, and when strip is crossed gas passage 51 and is located at piston 7 middle part, gases at high pressure enter rear chamber 10 by the first distribution duct 71
Interior, thus promoting piston 7 descending, move in circles, the diverse location being located in outer tube 8 using piston 7, realize gases at high pressure and lead to
Cross the first distribution duct 71, the cup 9 of the second distribution duct 72 entrance piston distribution and rear chamber 10, realize the high-frequency high-speed of piston
Reciprocal acting motion.
When needing to blow operation by force, impacter lift-off hole is low, and drill bit 11 falls, and piston 7 is followed drill bit 11 and dropped down onto and blows by force position
Put, now, strip is crossed gas passage 51 and is located in rear chamber 10, and gases at high pressure are crossed gas passage 51 by strip and are directly entered rear chamber 10,
Afterwards central passage 73 is entered by the first distribution duct 71 of piston 7, be expelled directly out outside impacter, realize blowing by force function.
The described present invention can be by changing four parts such as fairlead 13, trocar sheath 8, snap ring 14, lower contact 15 thus joining
With the drill bit of different connection form, such as DHD series, QL series, SD series, Mission series etc., there is good accessory general
Property and operability, realize a kind of gas distribution structure adapted plurality of specifications drill bit, expand range.
The present invention adopts piston from distribution principle, the no design of inner casing, need not be dismantled by new type check valve positioner
Top connection is the adnexaes such as replaceable corresponding non-return valve and spring, need not tear machine open by ventilation self-checking device and change regulating QI plug
Can achieve automatically adjusting of delivery of bailing air, can be with releasing pressure automatically it is ensured that impacter be in rational work pressure by pressure limiting device
Work under power, compact conformation is simple, be easy to safeguard, improve gas efficiency, and interior plenum system is also to resistance during water well operation
Be plugged with a certain degree of avoid, expand range, increased the service life of impacter.
Claims (10)
1. deep hole operation down-the-hole air hammer, including top connection（1）, outer tube（8）And drill bit（11）It is characterised in that：Outer tube（8）Interior
Central aeration pipe air distributing device and piston are installed（7）, central aeration pipe air distributing device is by top connection（1）With piston（7）Connection,
Top connection（1）Inside it is provided with non-return valve positioner and multigroup pressure limiting device for controlling operating pressure, central aeration pipe is joined
The end of device of air is provided with the ventilation self-checking device for letting cinder control air quantity, and gases at high pressure pass through top connection（1）
Realize piston with central aeration pipe air distributing device（7）High-frequency high-speed back and forth do work motion.
2. deep hole operation down-the-hole air hammer according to claim 1 it is characterised in that：Non-return valve positioner includes arranging
In top connection（1）Interior long-channel, in long-channel, the position near taper thread end face is provided with non-return valve（2）, in long-channel with
Non-return valve（2）The corresponding position in end is provided with cooperation step（104）, coordinate step（104）Place is provided with and non-return valve（2）
The obturating cup seat of cooperation（102）.
3. deep hole operation down-the-hole air hammer according to claim 2 it is characterised in that：Non-return valve（2）The other end sheathed
There is check valve spring（3）, and it extend into spring base（4）Interior, spring base（4）On be provided with multiple for cross gas cross gas passages
（106）, spring base（4）By step（105）It is positioned in long-channel.
4. deep hole operation down-the-hole air hammer according to claim 1 it is characterised in that：Pressure limiting device is included with certain inclination
Angle setting the stepped hole that outside is connected with long-channel（205）, stepped hole（205）Interior by pressure limiting spring（203）Will be close
Blocking（204）It is depressed at step, pressure limiting spring（203）The other end pass through pressure limiting spring base（202）Positioned and adjusted
Elastic force.
5. deep hole operation down-the-hole air hammer according to claim 4 it is characterised in that：Pressure limiting spring base（202）With above connect
Head（1）Between be threaded connection, pressure limiting spring base（202）Be provided centrally with central small hole, pressure limiting spring base（202）Outer
Side is provided with for preventing pressure limiting spring base（202）Loosening internal circlip（201）.
6. deep hole operation down-the-hole air hammer according to claim 4 it is characterised in that：The central axis of pressure limiting device and punching
The angle hitting device axis is located between 30-50 degree, and expellant gas can be used for secondary auxiliary deslagging.
7. deep hole operation down-the-hole air hammer according to claim 6 it is characterised in that：Ventilation self-checking device includes
It is internally provided with the sealing valve of location hole of the spring（601）, sealing valve（601）One end be provided with step, sealing valve（601）Another
One end is located at spring base（603）Interior.
8. deep hole operation down-the-hole air hammer according to claim 7 it is characterised in that：Sealing valve（601）Outer circumference surface
It is and spring base（603）The face of cylinder of cooperation（605）, the face of cylinder（605）On be provided with many rounds（606）.
9. deep hole operation down-the-hole air hammer according to claim 8 it is characterised in that：Packing spring seat（603）End
It is provided with for location sealing spring base（603）Back-up ring（604）.
10. deep hole operation down-the-hole air hammer according to claim 1 it is characterised in that：Central aeration pipe air distributing device bag
Include one end and stretch into top connection（1）Interior by bearing pin（12）The central aeration pipe being fixedly connected（5）, central aeration pipe（5）With above connect
Head（1）Between for be fitted close, fit clearance be less than 0.1mm, described top connection（1）With outer tube（8）Non-threaded section of inwall is tight
Close fit, fit clearance is less than 0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610933672.7A CN106437493B (en) | 2016-11-01 | 2016-11-01 | Deep hole operation down-the-hole air hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610933672.7A CN106437493B (en) | 2016-11-01 | 2016-11-01 | Deep hole operation down-the-hole air hammer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106437493A true CN106437493A (en) | 2017-02-22 |
| CN106437493B CN106437493B (en) | 2018-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610933672.7A Active CN106437493B (en) | 2016-11-01 | 2016-11-01 | Deep hole operation down-the-hole air hammer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642327A (en) * | 2017-10-30 | 2018-01-30 | 吉林大学 | A kind of enclosed positive and negative circulation impact device |
| CN107859494A (en) * | 2017-11-30 | 2018-03-30 | 宜昌钻山甲科技有限责任公司 | A kind of transit joint and down-the-hole air hammer and drilling rod with spiral deslagging diverter function |
| CN111927306A (en) * | 2020-09-03 | 2020-11-13 | 长沙天和钻具机械有限公司 | Large-aperture impactor with adjustable air inflow |
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| CA2750810C (en) * | 2009-01-28 | 2015-02-24 | Center Rock Inc. | Down-the-hole drill reverse exhaust system |
| US20130292182A1 (en) * | 2010-10-28 | 2013-11-07 | Bernard Lionel Glen | Down-the-hole hammer drill assembly |
| 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 |
| CN104265154A (en) * | 2014-09-19 | 2015-01-07 | 宜昌市五环钻机具有限责任公司 | Novel down-the-hole impactor |
| CN206129144U (en) * | 2016-11-01 | 2017-04-26 | 山东中瑞工程机械有限公司 | Deep hole operation downhole air hammer |
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| CN107642327A (en) * | 2017-10-30 | 2018-01-30 | 吉林大学 | A kind of enclosed positive and negative circulation impact device |
| CN107642327B (en) * | 2017-10-30 | 2023-09-15 | 吉林大学 | Closed positive and negative circulation impactor |
| CN107859494A (en) * | 2017-11-30 | 2018-03-30 | 宜昌钻山甲科技有限责任公司 | A kind of transit joint and down-the-hole air hammer and drilling rod with spiral deslagging diverter function |
| CN107859494B (en) * | 2017-11-30 | 2023-10-20 | 宜昌钻山甲科技有限责任公司 | Transition joint with spiral slag discharging and flow dividing functions, down-the-hole impactor and drill rod |
| CN111927306A (en) * | 2020-09-03 | 2020-11-13 | 长沙天和钻具机械有限公司 | Large-aperture impactor with adjustable air inflow |
| CN111927306B (en) * | 2020-09-03 | 2022-06-28 | 长沙天和钻具机械有限公司 | Large-aperture impactor with adjustable air inflow |
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