CN206129142U - Energy -efficient compact downhole air hammer - Google Patents
Energy -efficient compact downhole air hammer Download PDFInfo
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- CN206129142U CN206129142U CN201621158026.XU CN201621158026U CN206129142U CN 206129142 U CN206129142 U CN 206129142U CN 201621158026 U CN201621158026 U CN 201621158026U CN 206129142 U CN206129142 U CN 206129142U
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- piston
- outer tube
- energy
- aeration pipe
- top connection
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Abstract
The utility model discloses an energy -efficient compact downhole air hammer, including top connection, outer tube and drill bit, its characterized in that: install central breather pipe integral type distributing device and piston in the outer tube, central breather pipe integral type distributing device realizes the reciprocal acting motion of high -frequency and high -speed of piston with top connection and piston intercommunication, high -pressure gas through top connection and central breather pipe integral type distributing device. The utility model discloses an axial dimensions between top connection and piston has further been compressed in center breather pipe integration distributing device's compact design, and simple structure, intensity is high, the cooperation is stable and change the maintenance, saves the cost, has improved and has crossed gas efficiency, and the blockage when air supplying method is also to the well operation in and has had avoiding of certain degree, reduces the air feed demand, and is energy -conserving high -efficient, has realized the multiple specification drill bit of distribution structure adapted, has enlarged application range.
Description
Technical field
The utility model is related to mining machinery technical field, specifically a kind of energy-efficient compact down-the-hole impact
Device.
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
Efficiency requirements more and more higher to product.
The impactor of conventional type realizes the impact acting of impactor mainly by the distribution effect of inner casing and piston, with routine
As a example by A is serial, piston in addition to a middle through hole, itself without other holes exist with the middle of piston, piston move up and down according to
Inner cylinder coordinates with outside piston air flue, so that piston forms reciprocating motion, the gases at high pressure of piston movement between Qian Hou room
The room in front and back of piston is entered by the cavity between inner casing and outer tube, because it is vulnerable part, and complexity is carried out to housing
Processing flowing into intermediate cavity, air flue loss is big, reduces capacity usage ratio, causes using effect low.
The impactor central aeration pipe of conventional type mainly substitutes the effect of inner casing, and the suspending way for adopting is cylindrical for gas-distribution pipe
Step is respectively provided with overcoat pipe orifice, step can be platform, can also carry certain angle, match somebody with somebody by the mounting of two steps
Axially position is realized in conjunction.
However, being limited by space, it is only 1-4mm that this kind of connected mode coordinates width, and conventional structure part is at random, is coordinated
Tight type is poor, single-piece failure easily occurs.
The content of the invention
Problem to be solved in the utility model is to provide a kind of compact conformation, simple structure, is easy to safeguard, improves gas effect
Rate, and interior plenum system also has a certain degree of energy-efficient compact down-the-hole impact for avoiding to obstruction during water well operation
Device.
In order to solve the above problems, the utility model is employed the following technical solutions：
A kind of energy-efficient compact down-the-hole air hammer, including top connection, outer tube and drill bit, are provided with center and lead in outer tube
Tracheae integral type air distributing device and piston, central aeration pipe integral type air distributing device connects top connection with piston, gases at high pressure
Realize that the high-frequency high-speed of piston back and forth does work motion by top connection and central aeration pipe integral type air distributing device.
The following is further optimization of the utility model to such scheme：
Central aeration pipe integral type air distributing device includes being located at the non-return valve and central aeration pipe in same axle center, and non-return valve is leaned on
The position of nearly central aeration tube end is provided with spring base, and multiple air passing holes are provided with spring base.
Further optimization：One end of central aeration pipe is plugged in spring base and is fixedly connected by bearing pin, central aeration
The pipe other end is plugged in the central passage of piston, and arranges regulating the qi flowing in the channels plug, is arranged near the position of regulating the qi flowing in the channels plug on central aeration pipe
There are multiple strips to cross gas passage.
Further optimization：Non-return valve is arranged in top connection, and central aeration pipe is arranged in outer tube, top connection and outer tube it
Between be tightly connected by thread segment and non-threaded section.
Further optimization：Thread segment includes straight thread portion and straight thread root, and bearing pin is radially plugged on by straight thread portion
On spring base and central aeration pipe, O-ring seals are provided between straight thread root and outer tube is used for the sealing of gases at high pressure.
Further optimization：To be fitted close between central aeration pipe and top connection, fit clearance is less than 0.1mm, top connection
Non-threaded section is tight fit with outer tube wall, and fit clearance is less than 0.1mm.
Further optimization：Regulating the qi flowing in the channels plug is non-porous, aperture or macropore one of which.
Further optimization：The the first distribution duct and second being tiltedly installed with for distribution that keeps at a certain distance away on piston is matched somebody with somebody
Pore road, and connect with central passage respectively.
Further optimization：Strip crosses the axial length of gas passage less than the first distribution duct and the second distribution duct in piston
Between axial distance.
Further optimization：The position in rear chamber, outer tube positioned at piston side is formed in outer tube between top connection and piston to set
Fairlead is equipped with, cup is formed between piston and fairlead, snap ring is provided between fairlead and drill bit, drill bit passes through lower contact
In outer tube.
Further optimization：By changing fairlead, outer tube, snap ring, four parts of lower contact, can adapted different connection form
Drill bit.
The compact design that the utility model passes through the pipe integrated air distributing device of central aeration, further have compressed top connection
With the axial dimension of piston space, simple structure, intensity are high, coordinate stable and more easy care, cost-effective, improve gas effect
Rate, and interior plenum system also has a certain degree of avoiding to obstruction during water well operation；By using piston from distribution principle,
Design without inner casing, in addition to middle through hole, the air flue of also multiple connection interstitial holes and outside piston is relied on piston itself
The reciprocating motion of room before and after central aeration pipe and the formation of piston air flue itself, batch (-type) plenum system reduces supply demand, energy-conservation
Efficiently, a kind of gas distribution structure adapted plurality of specifications drill bit is realized, use range is expanded.
With reference to the accompanying drawings and examples the utility model is described in further detail.
Description of the drawings
Fig. 1 is the structural representation of the utility model embodiment down-the-hole air hammer；
Fig. 2 is the structural representation of the utility model embodiment breather pipe.
In figure：1- top connections；2- non-return valves；3- springs；4- spring bases；5- central aeration pipes；6- regulating the qi flowing in the channels plugs；7- pistons；
8- outer tubes；9- cups；10- rear chambers；11- drill bits；12- bearing pins；13- fairleads；14- snap rings；15- lower contacts；16-O shapes are sealed
Circle；17- straight thread roots；18- straight threads portion；41- air passing holes；51- strips cross gas passage；The first distributions of 71- duct；72-
Two distribution ducts；73- central passages.
Specific embodiment
Embodiment, as shown in Figure 1 and Figure 2, a kind of energy-efficient compact down-the-hole air hammer, including top connection 1, the and of outer tube 8
Central aeration pipe integral type air distributing device and piston 7, central aeration pipe integral type air distributing device are installed in drill bit 11, outer tube 8
Top connection 1 is connected with piston 7, gases at high pressure realize piston 7 by top connection 1 and central aeration pipe integral type air distributing device
High-frequency high-speed back and forth does work motion.
The central aeration pipe integral type air distributing device includes being located at the non-return valve 2 and central aeration pipe 5 in same axle center, inverse
Only valve 2 is provided with spring base 4 near the position of the end of central aeration pipe 5, and multiple air passing holes 41 are provided with spring base 4.
One end of the central aeration pipe 5 is plugged in spring base 4 and is fixedly connected by bearing pin 12, central aeration pipe 5
The other end is plugged in the central passage 73 of piston 7, and arranges regulating the qi flowing in the channels plug 6, near the position of regulating the qi flowing in the channels plug 6 on central aeration pipe 5
It is provided with multiple strips and crosses gas passage 51.
The non-return valve 2 is arranged in top connection 1, and central aeration pipe 5 is arranged in outer tube 8, top connection 1 and outer tube 8 it
Between be tightly connected by thread segment and non-threaded section.
The thread segment includes straight thread portion 18 and straight thread root 17, and bearing pin 12 is plugged on by the radial direction of straight thread portion 18
On spring base 4 and central aeration pipe 5, O-ring seals 16 are provided between straight thread root 17 and outer tube 8 for the close of gases at high pressure
Feng Xing.
To be fitted close between the central aeration pipe 5 and top connection 1, fit clearance is less than 0.1mm.
Non-threaded section with the inwall of outer tube 8 of the top connection 1 is tight fit, and fit clearance is less than 0.1mm, so can have
Effect ensures that the axiality that central aeration pipe coordinates with piston meets the requirements.
The regulating the qi flowing in the channels plug 6 is non-porous, aperture or macropore one of which, and the wherein aperture of aperture is less than 4mm, the aperture of macropore
Between 4-10mm.
The position in rear chamber 10, outer tube 8 positioned at the side of piston 7 is formed in the outer tube 8 between top connection 1 and piston 7 to set
Fairlead 13 is equipped with, cup 9 is formed between piston 7 and fairlead 13.
The fairlead 13 is steel part, and the outer surface of fairlead 13 is provided with the O-ring seals groove in 4-6 roads and is easy to fairlead
Positioning and sealing, the axially position of fairlead 13 is steel wire clamping ring formula.
Keep at a certain distance away on the piston 7 and be tiltedly installed with the first distribution duct 71 and the second air distribution hole for distribution
Road 72, and connect with central passage 73 respectively.
The strip crosses the axial length of gas passage 51 less than the first distribution duct 71 and the second distribution duct 72 in piston 7
Between axial distance.
The lower end of the piston 7 is contacted by fairlead 13 with drill bit 11, and between fairlead 13 and drill bit 11 card is provided with
Ring 14, drill bit 11 is arranged in outer tube 8 by lower contact 15.
The snap ring 14 is double semi-circular, and inner ring is two-sided convex structure, has more preferable fiting effect with drill bit 11.
Be separately provided for the central passage 73 blown by force on the piston 7 and the axle center of drill bit 11, and piston 7 it is descending with
Connect when drill bit 11 is contacted.
The two ends of the outer tube 8 and internal symmetry are designed, and changeable above-below direction is used when wearing and tearing larger at one end.
When normal operation is used, 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 is opened, afterwards gases at high pressure are entered in central aeration pipe 5 by multiple air passing holes 41 of spring base 4, normal operation situation
Under, in central aeration pipe 5 on non-porous regulating the qi flowing in the channels plug 6 prevent gases at high pressure from being directly entered in piston centre passage 73, and make high pressure
Gas crosses gas passage 51 into the first distribution duct 71, the second distribution duct 72 on piston 7 by the strip of central aeration pipe 5
It is interior；When piston 7 it is descending, strip cross gas passage 51 positioned at 7 upper end of piston when, strip is crossed gas passage 51 and is connected with the second distribution duct 72
Logical, gases at high pressure enter cup 9 by the second distribution duct 72, and so as to promote piston 7 up, when piston 7 is up, strip crosses gas
When passage 51 is located at 7 middle part of piston, gases at high pressure are entered in rear chamber 10 by the first distribution duct 71, so as to promote piston 7 under
OK, move in circles, using piston 7 diverse location in outer tube 8 be located at, realize gases at high pressure by the first distribution duct 71,
Second distribution duct 72 enters the cup 9 and rear chamber 10 of piston distribution, and the high-frequency high-speed for realizing piston back and forth does work motion.
Described the utility model is being intermittent supply using process, because multiple strips cross the axial length of gas passage 51
Less than the axial distance in piston 7 between first distribution duct 71, the second distribution duct 72, when multiple on central aeration pipe 5
Strip cross gas passage 51 in the piston 7 between first distribution duct 71, the second distribution duct 72 when, feeding pneumatic is in closing
State, does not now consume gases at high pressure, so as to reduce supply demand, realizes energy-saving effect.
When needing to blow operation by force, impactor lift-off hole is low, and drill bit 11 falls, and piston 7 follows drill bit 11 to drop down onto and blow by force position
Put, now, strip crosses gas passage 51 in rear chamber 10, and gases at high pressure cross gas passage 51 and are directly entered rear chamber 10 by strip,
Afterwards central passage 73 is entered by the first distribution duct 71 of piston 7, be expelled directly out outside impactor, function is blown by force in realization.
When in heavy duty service, if necessary to increase capacity for wind, only need to be by the non-porous regulating the qi flowing in the channels in central aeration pipe 5
Plug 6 takes out or is replaced by the regulating the qi flowing in the channels plug 6 in hole, and the Main Function for having the regulating the qi flowing in the channels plug 6 in hole is realized to shunting by the size in hole
The control of exhaust air rate, when using having hole regulating the qi flowing in the channels plug 6 or not using regulating the qi flowing in the channels plug 6, gases at high pressure can shunt part and be expelled directly out punching
Hit outside device, increase deslagging effect.
Described the utility model can by change fairlead 13, outer tube 8, snap ring 14, four parts such as lower contact 15 from
And the drill bit of adapted different connection form, such as DHD are serial, QL is serial, SD series, Mission series, with good accessory
Versatility and operability, realize a kind of gas distribution structure adapted plurality of specifications drill bit, expand use range.
The compact design that the utility model passes through the pipe integrated air distributing device of central aeration, further have compressed top connection
With the axial dimension of piston space, simple structure, intensity are high, coordinate stable and more easy care, cost-effective, improve gas effect
Rate, and interior plenum system also has a certain degree of avoiding to obstruction during water well operation；By using piston from distribution principle,
Design without inner casing, in addition to middle through hole, the air flue of also multiple connection interstitial holes and outside piston is relied on piston itself
The reciprocating motion of room before and after central aeration pipe and the formation of piston air flue itself, batch (-type) plenum system reduces supply demand, energy-conservation
Efficiently, a kind of gas distribution structure adapted plurality of specifications drill bit is realized, use range is expanded.
Claims (10)
1. a kind of energy-efficient compact down-the-hole air hammer, including top connection（1）, outer tube（8）And drill bit（11）, its feature exists
In：Outer tube（8）Central aeration pipe integral type air distributing device and piston are inside installed（7）, central aeration pipe integral type air distributing device
By top connection（1）With piston（7）Connection, gases at high pressure pass through top connection（1）Realize with central aeration pipe integral type air distributing device
Piston（7）High-frequency high-speed back and forth do work motion.
2. a kind of energy-efficient compact down-the-hole air hammer according to claim 1, it is characterised in that：Central aeration pipe one
Body formula air distributing device includes being located at the non-return valve in same axle center（2）And central aeration pipe（5）, non-return valve（2）Near central aeration
Pipe（5）The position of end is provided with spring base（4）, spring base（4）On be provided with multiple air passing holes（41）.
3. a kind of energy-efficient compact down-the-hole air hammer according to claim 2, it is characterised in that：Central aeration pipe
（5）One end be plugged on spring base（4）It is interior and by bearing pin（12）It is fixedly connected, central aeration pipe（5）The other end is plugged on work
Plug（7）Central passage（73）It is interior, and regulating the qi flowing in the channels plug is set（6）, central aeration pipe（5）Upper close regulating the qi flowing in the channels plug（6）Position arrange
There are multiple strips to cross gas passage（51）.
4. a kind of energy-efficient compact down-the-hole air hammer according to claim 2, it is characterised in that：Non-return valve（2）If
Put in top connection（1）It is interior, central aeration pipe（5）It is arranged on outer tube（8）It is interior, top connection（1）With outer tube（8）Between pass through thread segment
It is tightly connected with non-threaded section.
5. a kind of energy-efficient compact down-the-hole air hammer according to claim 4, it is characterised in that：Thread segment includes straight
Threaded portion（18）With straight thread root（17）, bearing pin（12）By straight thread portion（18）Radially it is plugged on spring base（4）And center
Breather pipe（5）On, straight thread root（17）With outer tube（8）Between be provided with O-ring seals（16）For the sealing of gases at high pressure.
6. a kind of energy-efficient compact down-the-hole air hammer according to claim 4, it is characterised in that：Central aeration pipe
（5）With top connection（1）Between for be fitted close, fit clearance be less than 0.1mm, top connection（1）With outer tube（8）Non-threaded section of inwall
To be fitted close, fit clearance is less than 0.1mm.
7. a kind of energy-efficient compact down-the-hole air hammer according to claim 3, it is characterised in that：Regulating the qi flowing in the channels plug（6）For
Non-porous, aperture or macropore one of which.
8. a kind of energy-efficient compact down-the-hole air hammer according to claim 3, it is characterised in that：Piston（7）Between upper
The first distribution duct for distribution is tiltedly installed with a certain distance（71）With the second distribution duct（72）, and respectively with center
Passage（73）Connection；
Strip crosses gas passage（51）Axial length be less than piston（7）Interior first distribution duct（71）With the second distribution duct（72）
Between axial distance.
9. a kind of energy-efficient compact down-the-hole air hammer according to claim 6, it is characterised in that：Outer tube（8）On interior
Joint（1）With piston（7）Between form rear chamber（10）, outer tube（8）It is interior positioned at piston（7）The position of side is provided with fairlead
（13）, piston（7）With fairlead（13）Between form cup（9）, fairlead（13）With drill bit（11）Between be provided with snap ring
（14）, drill bit（11）By lower contact（15）Installed in outer tube（8）It is interior.
10. a kind of energy-efficient compact down-the-hole air hammer according to claim 9, it is characterised in that：Led by changing
To set（13）, outer tube（8）, snap ring（14）, lower contact（15）Four parts, can adapted different connection form drill bit（11）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621158026.XU CN206129142U (en) | 2016-11-01 | 2016-11-01 | Energy -efficient compact downhole air hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621158026.XU CN206129142U (en) | 2016-11-01 | 2016-11-01 | Energy -efficient compact downhole air hammer |
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| Publication Number | Publication Date |
|---|---|
| CN206129142U true CN206129142U (en) | 2017-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621158026.XU Active CN206129142U (en) | 2016-11-01 | 2016-11-01 | Energy -efficient compact downhole air hammer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110219583A (en) * | 2019-06-12 | 2019-09-10 | 湖南科技大学 | A kind of large aperture pineapple hair style hard rock is crushed impactor and breaking method |
| CN114960632A (en) * | 2022-06-15 | 2022-08-30 | 陈白全 | Horizontal drilling rotary jet grouting pile forming device and construction method thereof |
-
2016
- 2016-11-01 CN CN201621158026.XU patent/CN206129142U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110219583A (en) * | 2019-06-12 | 2019-09-10 | 湖南科技大学 | A kind of large aperture pineapple hair style hard rock is crushed impactor and breaking method |
| CN110219583B (en) * | 2019-06-12 | 2020-07-24 | 湖南科技大学 | Large-aperture pineapple head type hard rock crushing impactor and crushing method |
| CN114960632A (en) * | 2022-06-15 | 2022-08-30 | 陈白全 | Horizontal drilling rotary jet grouting pile forming device and construction method thereof |
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