CN106050128A - Drill bit self-rotation type pneumatic down-the-hole hammer - Google Patents
Drill bit self-rotation type pneumatic down-the-hole hammer Download PDFInfo
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- CN106050128A CN106050128A CN201610639400.6A CN201610639400A CN106050128A CN 106050128 A CN106050128 A CN 106050128A CN 201610639400 A CN201610639400 A CN 201610639400A CN 106050128 A CN106050128 A CN 106050128A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 6
- 230000007704 transition Effects 0.000 claims abstract description 3
- 238000009826 distribution Methods 0.000 claims description 112
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 28
- 206010022000 influenza Diseases 0.000 claims description 4
- 230000004323 axial length Effects 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 18
- 239000007789 gas Substances 0.000 description 25
- 208000006011 Stroke Diseases 0.000 description 18
- 230000033001 locomotion Effects 0.000 description 13
- 239000011435 rock Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000010276 construction Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000001914 calming effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- 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
- E21B4/14—Fluid operated hammers
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- Mechanical Engineering (AREA)
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- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a drill bit self-rotation type pneumatic down-the-hole hammer and aims to solve the problems that high power of a drilling deep hole drilling machine cannot be effectively achieved, and a drilling rod is cracked due to fatigue in a trenchless drilling process. The drill bit self-rotation type pneumatic down-the-hole hammer comprises a pneumatic transmission device, a rotation mechanism device and a drill bit connection device; the pneumatic transmission device comprises a piston and an outer pipe; the rotation mechanism device comprises a guide sleeve, a roller and a transmission sleeve; the drill bit connection device comprises a drill bit; the guide sleeve is mounted in the outer pipe and is in transition fit with the outer pipe, the left end face of the guide sleeve is in contact connection with the right end face of a positioning table in the outer pipe, the transmission sleeve is mounted at the position, on the left side of the guide sleeve, in the outer pipe and is in clearance fit with the outer pipe, the right end face of the transmission sleeve is in contact connection with the left end face of the positioning table, one end of the roller is mounted in a regular groove in the right end of the transmission sleeve, and the roller is in sliding connection with the regular groove; the other end of the roller is mounted on the piston, and the roller and the piston are in threaded connection; the drill bit connection device is connected with the left end of the transmission sleeve through the right end of the drill bit of the drill bit connection device by means of a spline.
Description
Technical field
The present invention relates to a kind of pneumatic in no-digging drilling, tunnel pipe roof construction and submarine sampling such as creep at the engineering
Instrument, it more particularly relates to a kind of drill bit is from rotary type pneumatic down-hole hammer.
Background technology
Pneumatic down-hole hammer is mainly used in rock boring.Pneumatic down-hole hammer creeps into its highest drilling efficiency, very
Long bit life, relatively low boring cost, be not required to configure well-flushing medium, to be suitable for all-weather construction operation etc. notable special
Point, shows huge application prospect in each boring field.
Pneumatic down-hole hammer it with compressed air as dynamic medium.During boring, its impact energy is constantly passed through by down-hole hammer
Drill bit imposes at the bottom of hole, and whole drilling tool rotates together in company with rig slew gear, makes drill bit rotate continuously, intermittently impactite
Body.The rock dust formed in boring procedure, then drain into outside hole along with calming the anger of the annular space flowed through between drilling rod and hole wall.
In many cases, as crept into deep hole, grooving engineering etc., the big power of rig cannot play effectively, causes
Waste.In no-digging drilling, the change of team of full drilling tool rotary brings many unfavorable factors, such as drilling rod fatigue fracture, hole wall disturbance etc..
Summary of the invention
The technical problem to be solved be the big power overcoming and creeping into deep hole rig cannot effectively play and
The problem of drilling rod fatigue fracture in no-dig technique bores, it is provided that the pneumatic down-hole hammer that a kind of drill bit can turn round voluntarily.
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that realization: described a kind of drill bit is from returning
Transition, pneumatic down-hole hammer included pneumatic actuator, slew gear device and drill bit connecting device；
Described pneumatic actuator includes piston and outer tube；
Described slew gear device includes fairlead, roller and drive sleeve；
Described drill bit connecting device includes drill bit；
Described fairlead is installed within the outer tube, uses interference fits between the two, in the left side of fairlead and outer tube
Positioning table right side contact connect, drive sleeve is arranged in the outer tube on the left of fairlead, uses matched in clearance between the two,
The right side of drive sleeve contacts connection with the left side of positioning table, and one end of roller is arranged in the regular groove of drive sleeve right-hand member,
Between the two for being slidably connected；The other end of roller is arranged on piston, is threaded between the two；Drill bit connecting device leads to
The left end of the right-hand member and drive sleeve of crossing drill bit uses spline to be connected.
Pneumatic actuator described in technical scheme also includes top connection, non-return valve, distribution seat and inner casing；Described is upper
The left end of joint is threaded connection with the right-hand member of outer tube, and non-return valve, distribution seat are installed within the outer tube with inner casing, and piston is arranged on
In inner casing, for being slidably connected between the big end of piston and the inner casing of piston, piston is sleeved on distribution seat by central through hole simultaneously
On distribution bar, for being slidably connected between piston and distribution bar, between inner casing with outer tube use excessively coordinate, the right side of inner casing and
The left side contact of the distribution pedestal in distribution seat connects, and uses interference fits between distribution pedestal and the outer tube in distribution seat,
Non-return valve is arranged in the large diameter hole of distribution seat right-hand member, and the right side of distribution seat contacts connection with the left side of top connection.
Top connection described in technical scheme is hollow stepped annular structural member, and the center of top connection is axially disposed to be had
Shoulder hole, a diameter of maximum in the left end hole of shoulder hole, the middle sector hole of shoulder hole is the annular of the spool right-hand member with non-return valve
The mating holes of boss, the diameter of middle sector hole is more than the right-hand member hole i.e. diameter of air inlet less than the diameter in left end hole, middle sector hole
Diameter equal to the diameter of spool right-hand member round ring boss of non-return valve, the toric external cylindrical surface of left end of top connection be provided with
The external screw thread that outer tube right-hand member hole connects.
The structural member of the axially disposed annulus bodily form having shoulder hole, inner casing is located centered by inner casing described in technical scheme
Shoulder hole be followed successively by No. 1 hole, No. 2 holes, No. 3 holes and No. 4 holes from left to right, the equal diameters in No. 1 hole and No. 3 holes, No. 2 holes
Diameter is less than the diameter in No. 1 hole with No. 3 holes, and the diameter in No. 4 holes is less than the diameter in No. 2 holes；The diameter in No. 2 holes and the big end of piston
Equal diameters, air inlet and rear air inlet, front air inlet before being provided with the most symmetrically on the hole wall in No. 2 holes of inner casing
Hole and rear air inlet position respectively at the 1/3 and 2/3 of No. 2 hole wall axial dimensions, the axial dimension of No. 2 hole walls and the big end of piston
The axial dimension of annular groove equal.
Distribution seat described in technical scheme is connected with distribution pedestal by distribution bar, and distribution bar is all with distribution pedestal
The axis of rotation conllinear of cylindrical structure part, distribution bar and distribution pedestal, distribution seat center is axially disposed coaxial line
Ladder hole, the left end minor diameter through hole of ladder hole is distribution bar air flue, and the right-hand member large diameter hole of ladder hole is used for pacifying
Shock mount and spool, be provided with annulus bodily form boss, the diameter of distribution pedestal and outer pipe orifice on the left side of distribution pedestal
Footpath is equal, and distribution pedestal is provided with the air distribution hole of pair of L-shaped, the torus on the left side of distribution pedestal axially symmetricly
The external diameter of shape boss is equal to the diameter in inner casing right-hand member hole.
Piston described in technical scheme is ladder shaft type structural member, is made up of, along axle on piston big end, stage casing and small end
To being provided with the central through hole equipped with the distribution bar in distribution seat, the middle of big end circumferential surface is provided with annular groove,
Left end the most equally distributed four screwed holes in order to fixing roller at piston small end.
Fairlead described in technical scheme is torus structural member, and the center is provided with central through hole, fairlead
External diameter is equal with the internal diameter of outer tube, and fairlead internal diameter is equal with the external diameter in the stage casing of piston, edge on the guiding jacket wall of fairlead
Arranging two identical T-shaped air flues of structure, T-shaped air flue is by an axially extending bore and a radial direction through hole institute group axially symmetricly
Becoming, axially extending bore is mutually perpendicular to radial direction through hole and connects, and axially extending bore and radial direction through hole form T-shaped air flue, and radial direction through hole exists
The axial location of fairlead is at 1/3 fairlead axial length of fairlead left side.
Drive sleeve described in technical scheme is tube-in-tube structure part, the inner hole wall of drive sleeve left end is provided with right with drill bit
The internal spline that end connects, the external diameter of drive sleeve is equal with the internal diameter of outer tube；Rule groove it is machined with on the inner hole wall of drive sleeve right-hand member,
I.e. processing eight axial grooves on the inner hole wall that drive sleeve right-hand member is inboard, eight axial grooves are evenly distributed in drive sleeve right-hand member
On the inner hole wall of side, the right end at eight axial grooves processes 8 A skewed slots and 8 B skewed slots, eight axial grooves and 8 A skewed slots
Intersect with 8 B skewed slots, the right-hand member of adjacent two axial grooves and 2 A skewed slots and 2 B skewed slots composition W shape intersecting each other, A respectively
Skewed slot becomes to bear 45° angle with drive sleeve axis direction, and B skewed slot becomes positive 45° angle, 8 A skewed slots and 8 B oblique with drive sleeve axis direction
The right-hand member of groove and 8 uniform axial grooves intersect.
Drill bit connecting device described in technical scheme also includes drill bit snap ring, lower contact and anti-lost joint；Described brill
Head snap ring is fixing within the outer tube by its external screw thread, and the left side of drill bit snap ring contacts connection, lower contact with lower contact right side
Being connected on outer tube by its right-hand member external screw thread, lower contact left side contacts connection, the endoporus of anti-lost joint with the shaft shoulder of drill bit
Left end with drill bit for threadeding.
Outer tube described in technical scheme is cylinder-like structure part, and the most axially disposed have shoulder hole, by from
Right to left order, the first sector hole is the screwed hole being connected with top connection, and the second sector hole is to be connected with distribution seat
Unthreaded hole, the 3rd sector hole is the unthreaded hole not coordinated with part, and the diameter of the 3rd sector hole is more than the second sector hole and the diameter of the 4th sector hole,
4th sector hole is the unthreaded hole being connected with inner casing and fairlead successively, and the 5th sector hole is the unthreaded hole not coordinated with part, also known as
For positioning table, the diameter of the 5th sector hole is less than the 4th sector hole and the diameter of the 6th sector hole, and the 6th sector hole is to coordinate with drive sleeve even
The unthreaded hole connect, the 7th sector hole is the screwed hole being connected with drill bit snap ring, and the 8th sector hole is the spiral shell being connected with lower contact
Pit, the diameter of the 7th sector hole is more than the diameter of the 6th sector hole, and the diameter of the 8th sector hole is more than the diameter of the 7th sector hole, first paragraph
Kong Zhi eight sector hole is sequentially connected with, the axis of rotation conllinear of the first sector hole to the 8th sector hole.
Compared with prior art the invention has the beneficial effects as follows:
A kind of drill bit the most of the present invention slew gear device in rotary type pneumatic down-hole hammer is at pneumatic down-hole hammer
Inside rather than earth's surface, when creeping into the work such as deep hole, grooving engineering, drilling rod, not with bit, therefore can simplify and creep into
Equipment, improves the stressing conditions of drill string, alleviates the vibration of drill string, extends the service life of drilling tool, real to geological prospecting and engineering
Execute significant.
A kind of drill bit the most of the present invention utilizes the compression of air compressor machine from rotary type pneumatic down-hole hammer slew gear device
Air drives down-hole hammer impact, has discharged bigger impact energy, has improve work efficiency.
A kind of drill bit the most of the present invention is mainly used in rock from rotary type pneumatic down-hole hammer slew gear device
Boring, makes drill bit rotate continuously, intermittently impacts rock mass.The rock dust formed in boring procedure, then along with flow through drilling rod and hole wall it
Between calming the anger of annular space drain into outside hole.
A kind of drill bit the most of the present invention is suitable for hard rock from rotary type pneumatic down-hole hammer, because the fragility of hard rock is big,
Under shock loading, in addition to local rock is directly pulverized, generation is ruptured formation one and crushes by the rock at bit contact position
District, produces the landwaste of larger particles.Compared with common drilling machine, pneumatic down-hole hammer has bigger rate of penetration.Pneumatic
Down-hole hammer can also overcome some to creep into relatively difficult operating mode, such as creeps into as gravel layer, the gravel bed that wafts.
A kind of drill bit the most of the present invention is from rotary type pneumatic down-hole hammer main application fields: Solid Mineral exploration, sand
Prospecting for mineral deposits, engineer geological prospecting, the construction of well Drilling and vertical shaft for mine construction etc..
Accompanying drawing explanation
The present invention is further illustrated below in conjunction with the accompanying drawings:
Fig. 1 is a kind of drill bit of the present invention full section on rotary type pneumatic down-hole hammer structure composition front view
Figure；
Fig. 2 is that a kind of drill bit of the present invention forms front view from rotary type pneumatic down-hole hammer backhaul initial period structure
On full sectional view；
Fig. 3 is that a kind of drill bit of the present invention is main from rotary type pneumatic down-hole hammer piston stroke initial period structure composition
Full sectional view on view；
Fig. 4-a is a kind of drill bit of the present invention drive sleeve and piston, roller position in rotary type pneumatic down-hole hammer
The front view of relation；
Fig. 4-b is a kind of drill bit of the present invention drive sleeve and piston, roller position in rotary type pneumatic down-hole hammer
The left view of relation；
Fig. 5 is a kind of drill bit of the present invention regular groove on drive sleeve inner surface in rotary type pneumatic down-hole hammer
Structural representation；
Fig. 6 is on a kind of drill bit of the present invention piston structure composition front view in rotary type pneumatic down-hole hammer
Complete section
Fig. 7 is on a kind of drill bit of the present invention non-return valve structure composition front view in rotary type pneumatic down-hole hammer
Full sectional view；
Fig. 8 is on a kind of drill bit of the present invention guide sleeve structure composition front view in rotary type pneumatic down-hole hammer
Full sectional view.
In figure: 1. top connection, 2. non-return valve, 3. spring, 4. distribution seat, 5. inner casing, 6. piston, 7. fairlead, 8. outer tube,
9. roller, 10. drive sleeve, 11. drill bit snap rings, 12. lower contacts, 13. anti-lost joints, 14. drill bits, 15. axial grooves, 16.A is oblique
Groove, 17. positioning tables, 18. central through holes, air chamber before 19., 20. pistons hold greatly left side, air inlet before 21., air inlet after 22.
Hole, 23. pistons hold greatly right side, 24. rear gas chamber, 25. piston small ends, 26. piston stage casings, the 27. big ends of piston, 28. distributions
Bar, 29. distribution bar air flues, 30. air distribution holes, 31.T type air flue, 32. splines, 33.B skewed slot.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is explained in detail:
A kind of drill bit of the present invention mainly solves current aeratic hidden hole hammer bit from rotary type pneumatic down-hole hammer can not
The problem turned round voluntarily.The present invention is to add a slew gear device inside down-hole hammer, can creep into the work such as deep hole, grooving
Journey solves the problem that prior art can't resolve.
Refering to Fig. 1, described a kind of drill bit includes pneumatic actuator, slew gear device from rotary type pneumatic down-hole hammer
With drill bit connecting device.
Described pneumatic actuator includes top connection 1, non-return valve 2, distribution seat 4, inner casing 5, piston 6 and outer tube 8.
Described pneumatic actuator refers to that compressed air enters down-hole hammer inside by top connection 1 and acts on piston 6,
Make piston 6 that stroke and backhaul two kinds motion to occur, while piston 6 moves reciprocatingly, make drive sleeve 10 produce intermittent rotary,
Thus drive drill bit 14 to rotate.
Described outer tube 8 is rounded cylindrical structural member, and the most axially disposed have shoulder hole, presses from right to left
Sequentially, the first sector hole is the screwed hole being connected with top connection 1, and the second sector hole is the unthreaded hole being connected with distribution seat 4, the
Three sector holes are the unthreaded hole not coordinated with part, the diameter of the 3rd sector hole be more than the second sector hole and the diameter of the 4th sector hole, the 4th section
Hole is the unthreaded hole being connected with inner casing 5 and fairlead 7 successively, and the 5th sector hole is the unthreaded hole not coordinated with part, is location
Platform 17, the diameter of the 5th sector hole is less than the 4th sector hole and the diameter of the 6th sector hole, and the 6th sector hole is for be connected with drive sleeve 10
Unthreaded hole, the 7th sector hole is the screwed hole being connected with drill bit snap ring 11, and the 8th sector hole is to be connected with lower contact 12
Screwed hole, the diameter of the 7th sector hole more than the diameter of the 6th sector hole, the diameter of the 8th sector hole more than the diameter of the 7th sector hole, first
Sector hole is sequentially connected with to the 8th sector hole, the axis of rotation conllinear of the first sector hole to the 8th sector hole.
Described top connection 1 is the coupling part of automatic swiveling pneumatic down-hole hammer drilling rod, and top connection 1 is hollow cascade ring
Shape structural member, the center of top connection 1 is axially disposed shoulder hole, and a diameter of maximum in the left end hole of shoulder hole, during air inlet
The major part of the spool of non-return valve 2 is in the left end hole of shoulder hole, and non-return valve 2 is in open mode；The middle sector hole of shoulder hole
For the mating holes with the round ring boss of non-return valve 2 right-hand member, the diameter of middle sector hole less than the diameter in left end hole more than right-hand member hole is
The diameter of air inlet, the diameter of middle sector hole is equal to the diameter of non-return valve 2 spool right-hand member round ring boss, non-return valve 2 during not air inlet
Spool make non-return valve 2 close under the effect of spring 3, i.e. the annulus of the middle sector hole of top connection 1 shoulder hole and non-return valve 2 right-hand member
Shape boss is in close contact and makes non-return valve 2 close；The toric external cylindrical surface of left end of top connection 1 is provided with external screw thread, top connection 1
Being connected on right-hand member hole that is first sector hole of outer tube 8 by this external screw thread, compressed air can enter inner casing 5 by top connection 1
Piston 6 is promoted to move.
Described non-return valve 2 is made up of spring 3 and spool, and spring 3 is fixed in the groove of distribution seat 4.Spool is axle class
Structural member, the periphery of spool right-hand member is provided with a round ring boss, and it is equipped or de-with the middle sector hole of top connection 1 shoulder hole
Open, it is achieved the closedown of non-return valve 2 or open mode；The center of spool left end is axially disposed to be had for inlaying the blind of spring 3
Hole, the left end of spool is matched in clearance with the right-hand member hole of distribution seat 4 right-hand member center, so facilitates moving axially of spool.Inverse
Only the effect of valve 2 is only to allow gas into inner casing 5, and stops gas reverse flow.
Refering to Fig. 1 and Fig. 7, described distribution seat 4 is connected with distribution pedestal by distribution bar 28, distribution bar 28 and distribution
Pedestal is all cylindrical structure part, distribution bar 28 and the axis of rotation conllinear of distribution pedestal, and distribution seat 4 center sets vertically
Being equipped with the ladder hole of coaxial line, the left end minor diameter through hole of ladder hole is distribution bar air flue 29, and the right-hand member of ladder hole is big
Diametric hole, for installing the left end of spring 3 and spool, is provided with annulus bodily form boss on the left side of distribution pedestal, works as piston
At the end of stroke is fast, some gases in round boss, can be full of, reduce the high speed impact of piston, play cushioning effect.Distribution seat
The diameter of body is equal with outer tube 8 internal orifice dimension, is interference fits between the two, distribution pedestal is provided with a pair axially symmetricly
The air distribution hole 30 of L-shaped.The external diameter of the annulus bodily form boss of the distribution pedestal of distribution seat 4 is equal to the diameter in inner casing 5 right-hand member hole, both
Being set in together, the left side outside the annulus bodily form boss of the distribution pedestal of distribution seat 4 contacts with the right side of inner casing 5 even
Connect.The distribution bar air flue 29 of the distribution bar 28 of distribution seat 4 connects with the central through hole 18 of piston 6, distribution between the two, compression sky
Gas can arrive front air chamber 19 by the front air inlet 21 of the air distribution hole 30 of distribution seat 4 and inner casing 5, and front air chamber 19 air pressure raises and pushes away
Dynamic piston 6 does drawback movement.Wherein distribution bar 28 and piston 6 central through hole 18 matched in clearance, piston 6 can be on distribution bar 28
Slidably, distribution bar 28 can play guide effect.The shaft shoulder of the left side of distribution seat 4 contacts with the right side of inner casing 5 even
Connect.
Refering to Fig. 1 and Fig. 6, described piston 6 is ladder shaft type structural member, by holding greatly 27, stage casing 26 and small end 25 to form,
There is axially extending bore in the middle of piston 6, be equipped with the distribution bar 28 in distribution seat 4.Annular it is provided with recessed in the middle of the biggest end 27 surface
Slot part, its effect is that air inlet 21 enter front air chamber 19 before the backhaul phase gas of piston 6 can pass through inner casing 5；When
Stroke phase gas at piston 6 can enter rear gas chamber 24 by the rear air inlet 22 of inner casing 5；Piston stage casing 26 is on stroke rank
Section contacts cooperation with fairlead 7, and now front air chamber 19 seals；Process at piston small end 25 and be circumferentially uniformly distributed four use
Screwed hole with fixing roller 9.The left end of piston small end 25 installs roller 9, it is achieved the connection between piston 6 and drive sleeve 10 with
Transmission.
Refering to Fig. 1, described inner casing 5 is the transmission carrier of pneumatic actuator, locates axially disposed to have centered by inner casing 5
The structural member of the annulus bodily form of shoulder hole, the shoulder hole of inner casing 5 is followed successively by No. 1 hole, No. 2 holes, No. 3 holes and No. 4 holes from left to right,
No. 1 hole and the equal diameters in No. 3 holes, the diameter in No. 2 holes is less than No. 2 holes less than the diameter in No. 1 hole with No. 3 holes, the diameter in No. 4 holes
Diameter；Be matched in clearance between No. 2 holes and the big end of piston 27, i.e. the diameter in No. 2 holes and the equal diameters of the big end of piston (27),
Inner casing 5 is divided into front air chamber 19 and rear gas chamber 24 by the big end of piston 27.On the hole wall in No. 2 holes of inner casing 5 the most symmetrically
Be provided with two radial direction through hole, they are front air inlet 21 and rear air inlet 22 respectively, front air inlet 21 and rear air inlet 22
Position is respectively at the 1/3 and 2/3 of No. 2 hole wall axial dimensions, when piston 6 loads inner casing 5, and the annular groove of the big end of piston 27
Axial dimension and the axial dimension of No. 2 hole walls equal, when piston 6 stroke and backhaul, it is ensured that front air chamber 19 and rear gas chamber 24
Close and an air inlet for one.It is to be fixed by fairlead 7 and distribution seat 4, the left side of inner casing 5 and the right-hand member of fairlead 7
Face contact connects, and the right side of inner casing 5 contacts connection with the left side of the distribution pedestal of distribution seat 4.Inner casing 5 is contained in outer tube 8
3rd section with the 4th sector hole in, for excessively to coordinate between inner casing 5 and the 4th sector hole of outer tube 8.
Pneumatic actuator is top connection 1, non-return valve 2, distribution seat 4, inner casing 5, piston 6 and outer tube the most respectively
8.Wherein the left end of top connection 1 is threaded connection with the right-hand member of outer tube 8.Non-return valve 2, distribution seat 4, inner casing 5 and piston 6 are installed
In outer tube 8, piston 6 is arranged in inner casing 5, for being slidably connected between the big end of piston 27 and the inner casing 5 of piston 6, and piston 6 simultaneously
It is sleeved on the distribution bar 28 of distribution seat 4 by central through hole, for being slidably connected between the distribution bar 28 of piston 6 and distribution seat 4.
Using interference fits between inner casing 5 and outer tube 8, inner casing 5 right side contacts connection, i.e. inner casing 5 right side with the shaft shoulder of distribution seat 4
It is connected with the left side peripheral contact of the distribution pedestal in distribution seat 4.Distribution seat 4 is arranged in the second sector hole of outer tube 8, distribution
Use interference fits between distribution pedestal and the second sector hole of outer tube 8 in seat 4, depend in the right-hand member large diameter hole of distribution seat 4
The secondary spring 3 being provided with non-return valve 2 and the left end of spool, the right side of distribution seat 4 contacts connection with the left side of top connection 1.
The external screw thread of the left end of top connection 1 is connected with the female thread of outer tube 8 right-hand member hole that is first sector hole.
Described slew gear device is a kind of drill bit of the present invention agent structure from rotary type pneumatic down-hole hammer,
It includes fairlead 7, roller 9 and drive sleeve 10.
When piston stroke and backhaul, transport in the groove that the roller 9 on piston 6 is set on drive sleeve 10 right-hand member inner hole wall
Dynamic, make drive sleeve 10 rotate a certain angle, drive sleeve 10 is coupled by spline 32 with drill bit 14, thus drives drill bit 14 to rotate
Certain angle.
Refering to Fig. 1, the torus that described positioning table 17 is the 5th sector hole of processing shoulder hole on outer tube 8 and is formed is i.e.
One round ring boss.Positioning table 17 left side contacts the left end of connection, right side and fairlead 7 with the right side of drive sleeve 10
Face contact connects, and plays positioning action.
Refering to Fig. 8, described fairlead 7 is torus structural member, and the center is provided with central through hole, outside fairlead 7
Footpath is equal with the internal diameter of the 4th sector hole on outer tube 8, uses the stage casing of interference fits, fairlead 7 internal diameter and piston 6 between the two
The external diameter of 26 is equal.The inwall fineness of fairlead 7 is the highest, uses between central through hole wall and the piston stage casing 26 of fairlead 7
Matched in clearance, facilitates piston 6 to slide in fairlead 7.The left side of fairlead 7 contacts connection and realizes determining with positioning table 17
Position, the right side of fairlead 7 contacts connection with the left side of inner casing 5.The guiding jacket wall of fairlead 7 sets axially symmetricly
Putting two identical T-shaped air flues 31 of structure, T-shaped air flue 31 is made up of an axially extending bore and a radial direction through hole, axially leads to
Hole is mutually perpendicular to radial direction through hole and connects, and axially extending bore and radial direction through hole form T-shaped air flue 31, and radial direction through hole is at fairlead 7
Axial location be at 1/3 fairlead 7 axial length on fairlead 7 left side, when piston stage casing 26 departs from 1/3 fairlead 7 axle
At length, the gas of front air chamber 19 can be arranged at the bottom of hole by T-shaped air flue 31 and bit central through hole.
Refering to Fig. 4-a and Fig. 4-b, described roller 9 is arranged on the left end of the piston small end 25 of piston 6, and roller 9 is one
Cylinder, is threaded in its one end, during assembling, is screwed in the screwed hole of piston small end 25 left end by roller 9.Roller 9
The other end is equipped with the regular groove of drive sleeve 10 right-hand member, and during work, roller 9 moves in the regular groove of drive sleeve 10, along with work
The stroke of plug 6 and drawback movement, drive roller 9 to move in rule groove, make drive sleeve 10 rotate.
Refering to Fig. 4-b, described drive sleeve 10 is tube-in-tube structure part, and drive sleeve 10 left end inner hole wall is machined with interior flower
Key, right-hand member inner hole wall is machined with rule groove, and the external diameter of drive sleeve 10 is equal with the 6th sector hole internal diameter of outer tube 8, its surface
Fineness is the highest, to realize the stationarity of transmission.Drive sleeve 10 right side contacts connection and realizes with the left side of positioning table 17
Axially location, the left end of piston 6 is provided with roller 9, and roller 9 moves in the regular groove of drive sleeve 10.When piston 6 does reciprocal fortune
Time dynamic, drive sleeve 10 is driven to do intermittent rotary motion.Drive sleeve 10 left end endoporus is coupled by spline 32 with drill bit 14 right-hand member, passes
Dynamic set 10 intermittent rotaries can rotate with drill bit 14 simultaneously.
Refering to Fig. 5 and Fig. 4-b, it figure is the rough schematic view of regular groove set on drive sleeve 10 inner hole wall.Passing
The inner hole wall of dynamic set 10 right-hand members processes eight axial grooves 15, is evenly distributed on drive sleeve 10 right-hand member inner hole wall.At axial groove
Right end 8 A skewed slots 16 of processing of 15 and 8 B skewed slots 33, axial groove 15 intersects with A skewed slot 16 and B skewed slot 33, and two axially
Skewed slot between groove 15 intersects, and two A skewed slots 16 and two B skewed slots 33 constitute W shape.A skewed slot 16 and drive sleeve 10 axis direction
Becoming negative 45° angle, B skewed slot 33 becomes positive 45° angle with drive sleeve 10 axis direction.The tail end of every two crossing skewed slots adds the most respectively
1 axial groove of work, 8 axial grooves parallel with the axial groove 15 of left end altogether.Processing in groove is highly polished, facilitates roller 9
Slide in groove.For showing the action of roller 9, Fig. 4-b illustrates the roller 9 three positions (X, Y, Z) in groove.Roller 9
Start to move along skewed slot 16 from the ultra-Right position R shown in the right figure of Fig. 4-b, force drive sleeve 10 to rotate along the direction shown in arrow
Certain angle.As roller 9 in-position Y, drive sleeve just stops operating, and continues in motion at roller 9 to ultra-Left position X,
Drive sleeve 10 remains stationary as.
Described drill bit connecting device includes drill bit snap ring 11, lower contact 12, anti-lost joint 13 and drill bit 14.
Described drill bit snap ring 11 is tube-in-tube structure part, the annulus that left end has inwardly projecting flange i.e. cross section to be rectangle
Body, is stuck in the groove of drill bit 14, on the outer circle wall of drill bit snap ring 11 arrange external screw thread, the external screw thread of drill bit snap ring 11 with
The female thread in the 7th stage hole of outer tube 8 makes both fixing connections, can the fixing and guide effect to 14, drill bit.Drill bit snap ring
11 right sides contact connection with the left side shaft shoulder of the 6th sector hole in outer tube 8 and the left side of drive sleeve 10.
Described lower contact 12 is cylindrical structure part, and the outer surface of its left end is provided with annular groove, lower contact 12
Being provided with external screw thread on the external cylindrical surface of right-hand member, lower contact 12 is threadedly secured in outer tube 8 by this.The right side of lower contact 12
Connection is contacted with the left side shaft shoulder and drill bit snap ring 11 left side of the 7th sector hole in outer tube 8.
The described tube-in-tube structure part that anti-lost joint 13 is annular, left end endoporus is provided with screw thread, anti-lost joint 13
Being sleeved on drill bit 14, be threaded between the two, the flange of anti-lost joint 13 right-hand member is stuck in the groove of lower contact 12, uses
In avoiding well phenomenon, thus ensure being normally carried out of construction.
Described drill bit 14 is ladder shaft type structural member, and the center of drill bit 14 is axially disposed a central blind hole, in
The left end of heart blind hole arranges the oblique through hole of an axis of rotation and central blind hole central axis inclination 45 °, and effect is that gas is discharged,
Thus take away landwaste.Drill bit 14 left end outer surface threading is connected with anti-lost joint 13.Outside the right-hand member of drill bit 14 is provided with
Spline, coordinates with the internal spline of drive sleeve 10 left end, thus drill bit 14 produces with drive sleeve 10 and rotates.
Drill bit connecting device is drill bit snap ring 11, lower contact 12, anti-lost joint 13 and drill bit 14 the most respectively.Drill bit
Snap ring 11 is fixed in outer tube 8 by its external screw thread, and the left side of drill bit snap ring 11 contacts connection with lower contact 12 right side.Under
Joint 12 is connected on outer tube 8 by its right-hand member external screw thread, and lower contact 12 left side contacts connection with the shaft shoulder of drill bit 14.Anti-lost connect
The left end inwall of 13 is threaded connection with drill bit 14.
A kind of drill bit of the present invention is from the operation principle of rotary type pneumatic down-hole hammer:
Refering to Fig. 4, situation during location (ultra-Left position) when clashing into drill bit 14 for piston 6.Dotted line represents piston
6, roller 9 slides in eight axial grooves 15 of drive sleeve 10.
Refering to Fig. 3 to Fig. 5, in stroke movement, roller 9 starts along A skewed slot 16 from the ultra-Right position R shown in Fig. 4-b
Motion, and then make drive sleeve 10 turn an angle along the direction shown in arrow.As roller 9 in-position Y, drive sleeve 10
Just stopping operating, and continue in motion to ultra-Left position X at roller 9, drive sleeve 10 remains stationary as.In drawback movement, in rolling
Before son 9 in-position Z contact skewed slot 16 again, drive sleeve 10 remains stationary as.Because the summit of A skewed slot 16 not with axial groove 15
Central alignment, so roller can not return to the A skewed slot 16 of process during stroke, but enter B skewed slot 33.Roller 9 is along B skewed slot
33 continue motion forces drive sleeve 10 still to rotate same angle along direction shown in arrow.Roller 9 enters and B skewed slot afterwards
33 right-hand members be connected axial groove and move to ultra-Right position (above R), during this, drive sleeve 10 remains stationary as.
The rotating of described drill bit 14 is mainly realized by the stroke movement of piston 6 and drawback movement, refering to figure
1, it may be seen that the motion of whole piston 6 is by top connection 1, non-return valve 2, distribution seat 4, inner casing 5, coordinate between piston 6
Carry out.
Refering to Fig. 2, for the backhaul initial period of piston 6, compressed air system by the road enters pneumatic hammer top connection 1, gas
The pressure of stream forces the spring 3 of non-return valve 2 to compress thus pushes non-return valve 2 (spool) open, via the air distribution hole 30 of distribution seat 4 and interior
The front air inlet 21 of cylinder 5 enters front air chamber 19, piston 6 backhaul under the effect of pressure differential, gas compression in rear gas chamber 24；Work as work
When the left side 20 of plug 6 sealing surface of end greatly contacts with inner casing 5, front air chamber 19 seals, and piston relies on front air chamber 19 gas expansion
Do work and continue backhaul；When the right-hand member 23 of the sealing surface that piston 6 is held greatly departs from inner casing 5, rear gas chamber 24 air inlet, now piston 6
Inertia is relied on to continue backhaul；When piston 6 stage casing departs from fairlead 7, front air chamber 19 gas is drained at the bottom of hole by central through hole 18.
Piston 6 continues to slow down until being still in top dead centre, and backhaul terminates.
In the backhaul stage, piston 6 moves right, and due to coordinating of the roller 9 on piston 6 and drive sleeve 10, makes drive sleeve
10 rotate a certain angle, and drive sleeve 10 is coupled by spline with drill bit 14, thus drive drill bit 14 to rotate certain angle.
Refering to Fig. 3, for the stroke initial period of piston 6, compressed gas is air inlet 22 after distribution seat 4 and inner casing 5
Entering rear gas chamber 24, promote piston 6 to start stroke to the left, front air chamber 19 gas is drained at the bottom of hole by central through hole 18；Work as piston
When fairlead 7 is slipped in stage casing 26, front air chamber 19 seals, gas compression；Along with piston 6 continues stroke, hold greatly right-hand member when piston
When face 23 contacts with inner casing 5, rear gas chamber 24 stops air inlet, and now piston 6 relies on rear gas chamber 24 gas expansion for doing work to continue punching
Journey；When the big end left side 20 of piston departs from inner casing 5, the air inlet of front air chamber 19, piston 6 relies on inertia to continue stroke；Along with work
Plug 6 continuation stroke, piston small end 25 impacts drill bit 14 afterbody, and stroke terminates, and then starts next impact cycle.
In the stroke stage, piston 6 moves downward at a high speed, due to coordinating of the roller 9 on piston 6 and drive sleeve 10, makes biography
Dynamic set 10 rotates a certain angle, and drive sleeve 10 is coupled by spline with drill bit 14, thus drives drill bit 14 to rotate certain angle
Degree.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of the spirit or essential attributes of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter
From the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all by fall in the implication of equivalency and scope of claim
Change is included in the present invention.Should be not to limit involved claim by any reference in claim.
Claims (10)
1. a drill bit is from rotary type pneumatic down-hole hammer, it is characterised in that described a kind of drill bit is from rotary type pneumatic down-hole hammer
Including pneumatic actuator, slew gear device and drill bit connecting device；
Described pneumatic actuator includes piston (6) and outer tube (8)；
Described slew gear device includes fairlead (7), roller (9) and drive sleeve (10)；
Described drill bit connecting device includes drill bit (14)；
Described fairlead (7) is arranged in outer tube (8), uses interference fits between the two, and the left side of fairlead (7) is with outer
The right side contact of the positioning table (17) in pipe (8) connects, and drive sleeve (10) is arranged in the outer tube (8) in fairlead (7) left side,
Matched in clearance, the right side of drive sleeve (10) is used to contact connection with the left side of positioning table (17) between the two, roller (9)
One end is arranged in the regular groove of drive sleeve (10) right-hand member, between the two for being slidably connected；The other end of roller (9) is arranged on work
On plug (6), it is threaded between the two；Drill bit connecting device is adopted by the left end of the right-hand member of drill bit (14) with drive sleeve (10)
Connect with spline.
2. according to a kind of drill bit described in claim 1 from rotary type pneumatic down-hole hammer, it is characterised in that described Pneumatic Transmission
Device also includes top connection (1), non-return valve (2), distribution seat (4) and inner casing (5)；
The left end of described top connection (1) is threaded connection with the right-hand member of outer tube (8), and non-return valve (2), distribution seat (4) are with interior
In cylinder (5) is arranged on outer tube (8), piston (6) is arranged in inner casing (5), the big end of the piston (27) of piston (6) and inner casing (5) it
Between for being slidably connected, piston (6) is sleeved on the distribution bar (28) of distribution seat (4) by central through hole simultaneously, piston (6) with join
For being slidably connected between gas bar (28), use between inner casing (5) with outer tube (8) and excessively coordinate, the right side of inner casing (5) and distribution
The left side contact of the distribution pedestal in seat (4) connects, and uses transition between distribution pedestal and the outer tube (8) in distribution seat (4)
Coordinating, non-return valve (2) is arranged in the large diameter hole of distribution seat (4) right-hand member, the right side of distribution seat (4) and top connection (1)
Left side contact connects.
3. according to a kind of drill bit described in claim 2 from rotary type pneumatic down-hole hammer, it is characterised in that described top connection
(1) being hollow stepped annular structural member, the center of top connection (1) is axially disposed shoulder hole, the left end hole of shoulder hole
A diameter of maximum, the middle sector hole of shoulder hole is the mating holes of the round ring boss of the spool right-hand member with non-return valve (2), middle sector hole
Diameter is more than the right-hand member hole i.e. diameter of air inlet less than the diameter in left end hole, and the diameter of middle sector hole is equal to the valve of non-return valve (2)
The diameter of core right-hand member round ring boss, the toric external cylindrical surface of left end of top connection (1) is provided with outer tube (8) right-hand member hole even
The external screw thread connect.
4. according to a kind of drill bit described in claim 2 from rotary type pneumatic down-hole hammer, it is characterised in that described inner casing (5)
Centered by locate the structural member of the axially disposed annulus bodily form having shoulder hole, the shoulder hole of inner casing (5) is followed successively by No. 1 from left to right
Hole, No. 2 holes, No. 3 holes and No. 4 holes, the equal diameters in No. 1 hole and No. 3 holes, the diameter in No. 2 holes is straight less than No. 1 hole and No. 3 holes
Footpath, the diameter in No. 4 holes is less than the diameter in No. 2 holes；The diameter in No. 2 holes and the equal diameters of the big end of piston (27), at inner casing (5)
Be provided with front air inlet (21) and rear air inlet (22) on the hole wall in No. 2 holes the most symmetrically, front air inlet (21) and
Rear air inlet (22) position respectively at the 1/3 and 2/3 of No. 2 hole wall axial dimensions, the axial dimension of No. 2 hole walls and the big end of piston
(27) axial dimension of annular groove is equal.
5. according to a kind of drill bit described in claim 2 from rotary type pneumatic down-hole hammer, it is characterised in that described distribution seat
(4) being connected with distribution pedestal by distribution bar (28), distribution bar (28) and distribution pedestal are all cylindrical structure part, distribution
Bar (28) and the axis of rotation conllinear of distribution pedestal, the axially disposed ladder hole having coaxial line in distribution seat (4) center, rank
The left end minor diameter through hole of ladder through hole is distribution bar air flue (29), and the right-hand member large diameter hole of ladder hole is used for installing spring (3)
With spool, the left side of distribution pedestal is provided with annulus bodily form boss, the diameter of distribution pedestal and outer tube (8) internal orifice dimension phase
Deng, distribution pedestal is provided with the air distribution hole (30) of pair of L-shaped, the torus on the left side of distribution pedestal axially symmetricly
The external diameter of shape boss is equal to the diameter in inner casing (5) right-hand member hole.
6. according to a kind of drill bit described in claim 1 from rotary type pneumatic down-hole hammer, it is characterised in that described piston (6)
For ladder shaft type structural member, being made up of big end (27), stage casing (26) and small end (25), piston (6) is the most axially disposed to be had and joins
The central through hole (18) that distribution bar (28) on gas seat (4) is equipped, it is recessed that the middle of big end (27) circumferential surface is provided with annular
Groove, at left end the most equally distributed four screwed holes in order to fixing roller (9) of piston small end (25).
7. according to a kind of drill bit described in claim 1 from rotary type pneumatic down-hole hammer, it is characterised in that described fairlead
(7) being torus structural member, the center is provided with central through hole, and the external diameter of fairlead (7) is equal with the internal diameter of outer tube (8),
Fairlead (7) internal diameter is equal with the external diameter of the stage casing of piston (6) (26), axially symmetric on the guiding jacket wall of fairlead (7)
Two identical T-shaped air flues (31) of structure are set, T-shaped air flue (31) is by an axially extending bore and a radial direction through hole institute group
Becoming, axially extending bore is mutually perpendicular to radial direction through hole and connects, and axially extending bore and radial direction through hole form T-shaped air flue (31), the most logical
Hole is at 1/3 fairlead (7) axial length of fairlead (31) left side at the axial location of fairlead (7).
8. according to a kind of drill bit described in claim 1 from rotary type pneumatic down-hole hammer, it is characterised in that described drive sleeve
(10) it is tube-in-tube structure part, the inner hole wall of drive sleeve (10) left end is provided with the internal spline being connected with drill bit (14) right-hand member, pass
The external diameter of dynamic set (10) is equal with the internal diameter of outer tube (8)；It is machined with rule groove on the inner hole wall of drive sleeve (10) right-hand member, is i.e. passing
Processing eight axial grooves (15) on the inner hole wall that dynamic set (10) right-hand member is inboard, eight axial grooves (15) are evenly distributed on drive sleeve
(10), on the inner hole wall that right-hand member is inboard, the right end eight axial grooves (15) processes 8 A skewed slots (16) and 8 B skewed slots
(33), eight axial grooves (15) are intersected with 8 A skewed slots (16) and 8 B skewed slots (33), the right-hand member of adjacent two axial grooves (15)
With 2 A skewed slots (16) and 2 B skewed slot (33) composition W shapes intersecting each other respectively, A skewed slot (16) and drive sleeve (10) axis direction
Becoming negative 45° angle, B skewed slot (33) becomes positive 45° angle, 8 A skewed slots (16) and 8 B skewed slots (33) with drive sleeve (10) axis direction
Right-hand member and 8 uniform axial grooves intersect.
9. according to a kind of drill bit described in claim 1 from rotary type pneumatic down-hole hammer, it is characterised in that described drill bit connects
Device also includes drill bit snap ring (11), lower contact (12) and anti-lost joint (13)；
In described drill bit snap ring (11) is fixed on outer tube (8) by its external screw thread, the left side of drill bit snap ring (11) with under connect
The contact of head (12) right side connects, and lower contact (12) connects on outer tube (8) by its right-hand member external screw thread, lower contact (12) left side
Contact connection with the shaft shoulder of drill bit (14), the endoporus left end of anti-lost joint (13) with drill bit (14) for threadeding.
10. according to a kind of drill bit described in claim 1 from rotary type pneumatic down-hole hammer, it is characterised in that described outer tube (8)
For cylinder-like structure part, the most axially disposed have shoulder hole, by order from right to left, the first sector hole for on connect
Head (1) screwed hole that is connected, the second sector hole is the unthreaded hole being connected with distribution seat (4), the 3rd sector hole be not with part
Coordinate unthreaded hole, the diameter of the 3rd sector hole be more than the second sector hole and the diameter of the 4th sector hole, the 4th sector hole be successively with inner casing (5)
The unthreaded hole being connected with fairlead (7), the 5th sector hole is the unthreaded hole not coordinated with part, is also called positioning table (17), the 5th
The diameter of sector hole is less than the 4th sector hole and the diameter of the 6th sector hole, and the 6th sector hole is the unthreaded hole being connected with drive sleeve (10),
7th sector hole is the screwed hole being connected with drill bit snap ring (11), and the 8th sector hole is the screw thread being connected with lower contact (12)
Hole, the diameter of the 7th sector hole is more than the diameter of the 6th sector hole, and the diameter of the 8th sector hole is more than the diameter of the 7th sector hole, the first sector hole
It is sequentially connected with to the 8th sector hole, the axis of rotation conllinear of the first sector hole to the 8th sector hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610639400.6A CN106050128B (en) | 2016-08-06 | 2016-08-06 | A kind of drill bit is from rotary type pneumatic down-hole hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610639400.6A CN106050128B (en) | 2016-08-06 | 2016-08-06 | A kind of drill bit is from rotary type pneumatic down-hole hammer |
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| Publication Number | Publication Date |
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| CN106050128A true CN106050128A (en) | 2016-10-26 |
| CN106050128B CN106050128B (en) | 2018-03-09 |
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| CN201610639400.6A Expired - Fee Related CN106050128B (en) | 2016-08-06 | 2016-08-06 | A kind of drill bit is from rotary type pneumatic down-hole hammer |
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Cited By (8)
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| CN108086899A (en) * | 2018-01-24 | 2018-05-29 | 长江大学 | One kind pneumatically rocks rock fracture in dynamic indentation boring bar tool |
| CN109882068A (en) * | 2019-01-23 | 2019-06-14 | 中南大学 | It is a kind of to arrange powder no-valve type distribution Bidirectional pneumatic down-hole hammer suitable for deep hole bad ground |
| CN110344754A (en) * | 2019-08-28 | 2019-10-18 | 吉林大学 | A kind of hydraulic impacter |
| CN110513511A (en) * | 2019-08-28 | 2019-11-29 | 奥瑞拓能源科技股份有限公司 | A kind of air distributing device |
| CN111927307A (en) * | 2020-09-03 | 2020-11-13 | 长沙天和钻具机械有限公司 | Air distribution device of impactor and matched impactor |
| CN112647839A (en) * | 2021-01-19 | 2021-04-13 | 贵阳云海岩土工程有限公司 | Self-rotating pneumatic down-the-hole hammer |
| CN112922530A (en) * | 2021-02-05 | 2021-06-08 | 吉林大学 | Air reverse circulation down-the-hole hammer self-rotation drilling tool for directional drilling |
| CN113944424A (en) * | 2020-07-15 | 2022-01-18 | 中泵(无锡)流体装备有限公司 | Hydraulic down-the-hole hammer |
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| CN108086899B (en) * | 2018-01-24 | 2023-11-10 | 长江大学 | Pneumatic torsional pendulum impact rock breaking drilling tool |
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| CN113944424A (en) * | 2020-07-15 | 2022-01-18 | 中泵(无锡)流体装备有限公司 | Hydraulic down-the-hole hammer |
| CN113944424B (en) * | 2020-07-15 | 2023-06-09 | 中泵(无锡)流体装备有限公司 | Hydraulic down-the-hole hammer |
| CN111927307A (en) * | 2020-09-03 | 2020-11-13 | 长沙天和钻具机械有限公司 | Air distribution device of impactor and matched impactor |
| CN111927307B (en) * | 2020-09-03 | 2022-02-08 | 长沙天和钻具机械有限公司 | Air distribution device of impactor and matched impactor |
| CN112647839B (en) * | 2021-01-19 | 2023-03-10 | 贵阳云海岩土工程有限公司 | Self-rotating pneumatic down-the-hole hammer |
| CN112647839A (en) * | 2021-01-19 | 2021-04-13 | 贵阳云海岩土工程有限公司 | Self-rotating pneumatic down-the-hole hammer |
| CN112922530A (en) * | 2021-02-05 | 2021-06-08 | 吉林大学 | Air reverse circulation down-the-hole hammer self-rotation drilling tool for directional drilling |
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| CN106050128B (en) | 2018-03-09 |
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