CN108166921B - Drill hammer - Google Patents
Drill hammer Download PDFInfo
- Publication number
- CN108166921B CN108166921B CN201611115824.9A CN201611115824A CN108166921B CN 108166921 B CN108166921 B CN 108166921B CN 201611115824 A CN201611115824 A CN 201611115824A CN 108166921 B CN108166921 B CN 108166921B
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- Prior art keywords
- hammer
- wall
- anvil block
- drill
- valve body
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- 206010008469 Chest discomfort Diseases 0.000 claims abstract description 20
- 239000012530 fluid Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 210000000476 body water Anatomy 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 12
- 239000011435 rock Substances 0.000 abstract description 8
- 206010060904 Freezing phenomenon Diseases 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000009527 percussion Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 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
- E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
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)
Abstract
The invention discloses a kind of drill hammers, belong to oil and gas well drilling field of engineering technology.Include: outer cylinder, drill bit titled with and be from top to bottom sequentially arranged rotary power assembly and torsion impact assembly in outer barrel；Torsion impact assembly includes: anvil block body, hammer body and the valve body being sequentially arranged from outside to inside；There is toroidal cavity, toroidal cavity is separated to form high pressure chest and low pressure chamber between valve outer wall and hammer body inner wall；Body cavity is connected to high pressure chest；Multiple grooves are offered on the inner wall of anvil block body, form multiple working chambers between multiple grooves and the outer wall of hammer body, and the radial direction on the outer wall of hammer body at position corresponding with each groove along hammer body is respectively arranged with the second protrusion；High pressure chest and a working chamber connection, low pressure chamber are connected to another working chamber；Rotary power assembly provides rotary power for valve body.The drill hammer can be preced with drill bit when working and generate the effect of high frequency torsion impact, avoid generating stick-slip, intermittent bit freezing phenomenon when drill bit fractured rock.
Description
Technical field
The present invention relates to oil and gas well drilling field of engineering technology, in particular to a kind of to generate in drilling process
The drill hammer of rotary torsion impact vibration.
Background technique
Drill bit is downhole tool important in oil and gas well drilling engineering.During oil and gas well drilling, pass through
The cutting of drill bit, fragmentation carry out fractured rock.
PDC drill bit (Polycrystalline Diamond Compact Bit, polycrystalline diamond compact bit) due to
It is widely used in drillng operation with high-wearing feature and high intensity.
In the implementation of the present invention, the inventors discovered that in the prior art the prior art has at least the following problems: existing PDC
Drill bit is only capable of generating axial impact at work.It is firmly broken to hard formation or abrasive layer in that this allows for PDC drill bit
Stick-slip effect and intermittent bit freezing phenomenon can be generated when rock.I.e. " card-cunning " is existing.Being somebody's turn to do " card-cunning " phenomenon makes to add up in drill string
The elasticity of torsion can discharge, cause the rock break-off process of PDC drill bit extremely unstable, can directly damage PDC cutting tooth, reduce bore
The service life of head and lower drilling tool.
Summary of the invention
In order to solve the above technical problems, the present invention provides one kind can generate rotary torsion impact in drilling process
The drill hammer of vibration, with overcome existing drill bit in firmly to hard formation or abrasive layer fractured rock when generate it is viscous
Sliding, intermittent bit freezing phenomenon.
Specifically, including technical solution below:
The embodiment of the invention provides a kind of drill hammers, comprising:
Outer cylinder, the drill bit being fixedly connected with the lower end of the outer cylinder are preced with and are sequentially arranged from top to bottom in the outer cylinder
Internal rotary power assembly and torsion impact assembly；
The torsion impact assembly includes:
The anvil block body of the hollow circuit cylinder bodily form coaxial with the outer cylinder being sequentially arranged from outside to inside, the hollow circuit cylinder bodily form
The valve body of hammer body and hollow cylindrical；
There is toroidal cavity, along described on the outer wall of the valve body between the outer wall of the valve body and the inner wall of the hammer body
The radial direction of valve body is provided with the first protrusion, and the toroidal cavity is separated to form high pressure chest and low pressure by first protrusion
Chamber；The valve body deflector hole of connection body cavity and the high pressure chest is provided on the valve body；The lower end of the valve body with it is described
Drill bit hat connection；
Circumferencial direction on the inner wall of the anvil block body along the anvil block body offers multiple grooves, multiple grooves with
Form multiple working chambers between the outer wall of the hammer body, edge at position corresponding with each groove on the outer wall of the hammer body
The radial direction of the hammer body is respectively arranged with the second protrusion；It is provided on the hammer body for being connected to the high pressure chest and one
First hammer body deflector hole of the working chamber and the second hammer body for being connected to the low pressure chamber He another working chamber
Deflector hole；
The rotary power assembly is used for the trandfer fluid into the body cavity, for the valve body provides rotary power.
Further, the circumferencial direction on the inner wall of the anvil block body along the anvil block body is opened up there are three groove, and three
The groove is uniformly distributed.
Further, the torsion impact assembly further includes the anvil block upper cover that the top and bottom of the anvil block body are arranged in
With anvil block lower cover；And the anvil block lower cover is also touched with the hammer body and the drill bit crown grafting.
Further, the torsion impact assembly further includes the nozzle of the valve inner lower end being arranged in and for solid
The nozzle carrier of the fixed nozzle.
Further, sealing ring is provided between the nozzle and the valve body.
Further, the rotary power assembly includes: the power sleeve of the hollow circuit cylinder bodily form coaxial with the outer cylinder；
Positioned at the power sleeves internal and along multiple helical runners of the axial direction of power sleeve arrangement；It is separately positioned on
The first guide ring above each helical runner；And it is set to the second water conservancy diversion of the lower section of the helical runner of bottom
Ring.
Further, first guide ring is connect by jackscrew with the power sleeve.
Further, the rotary power assembly further include the deceleration axis set gradually from top to bottom, braking axis with
And impeller axis；The deceleration axis is located above the power sleeve, and the braking axis and the impeller axis are located at institute
State power sleeves internal；Between braking axis and first guide ring of the top and the impeller axis and remaining
Graphite bearing shell is provided between one guide ring；The top and bottom of the power sleeve pass through plane bearing and thrust axis respectively
Chengfu is just；It is provided with waveform spring above the plane bearing, braking is provided with above the waveform spring and is shorted.
Further, the thrust bearing includes secondary under secondary and thrust bearing on thrust bearing and is arranged in the thrust
Friction piece under friction piece and thrust bearing on thrust bearing on bearing under the secondary and described thrust bearing between pair.
Further, it is provided with annular groove on the outer wall at position that the drill bit hat is connected with the outer cylinder,
The outer cylinder is provided with top wire hole at position corresponding with the annular groove；
It is provided with steel ball in the annular groove, is provided with jackscrew in the top wire hole；
Sealing ring is additionally provided between the drill bit hat and the outer cylinder.
Further, the upper end of the outer cylinder is provided with screw thread pin thread.
Technical solution provided in an embodiment of the present invention the utility model has the advantages that
It is total via rotary power after high-pressure fluid enters from outer cylinder upper end in drill hammer provided in an embodiment of the present invention
Body cavity at the valve body for delivering into torsion impact assembly rotates valve body, in valve body rotary course, body cavity
High-pressure fluid enters high pressure chest, and then enters in a working chamber, and other working chamber is then connected to low pressure chamber, makes hammer body two
Side pressure difference changes and then anvil block body is pushed to rotate, and in anvil block body rotary course, the inner wall of the groove on anvil base vivo wall is hit
The second protrusion on the external wall of hammer, generates torsion impact.With the continuous rotation of valve body, the pressure of hammer body two sides generates the period
Property variation finally drill bit is preced with and generates high-frequency percussion so that hammer body and the interaction of anvil block body generate periodic torsion impact,
To effectively eliminate the stick-slip and intermittent bit freezing phenomenon of drill bit, firmly to hard formation or abrasive layer rock particularly suitable in
Stone is crushed.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the structural schematic diagram of drill hammer provided in an embodiment of the present invention；
Fig. 2 is the cross-sectional view in Fig. 1 along the direction A-A；
Fig. 3 is the partial enlarged view of rotary power assembly in drill hammer provided in an embodiment of the present invention.
Appended drawing reference respectively indicates:
1- braking is shorted；2- deceleration axis；3- waveform spring；4- plane bearing；The first guide ring of 5-；
6- graphite bearing shell；7- brakes axis；8- power sleeve；9- helical runner；
10- impeller axis；The second guide ring of 11-；
X- thrust bearing；
It is secondary on 12- thrust bearing；Friction piece on 13- thrust bearing；
Friction piece under 14- thrust bearing；It is secondary under 15- thrust bearing；
16- anvil block upper cover；17- anvil block body；18- hammer body；19- valve body；20- anvil block lower cover；
21- nozzle carrier；22- drill bit hat；23- outer cylinder；The first sealing ring of 24-；The first jackscrew of 25-；
26- steel ball；27- nozzle；The second sealing ring of 28-；29- bolt group；The second jackscrew of 30-；
31- body cavity；
321- the first hammer body deflector hole；322- the second hammer body deflector hole；
33- valve body deflector hole；34- working chamber；
35- high pressure chest；36- low pressure chamber.
Specific embodiment
To keep technical solution of the present invention and advantage clearer, below in conjunction with attached drawing to embodiment of the present invention make into
One step it is described in detail.Unless otherwise defined, all technical terms used in the embodiment of the present invention all have and art technology
The normally understood identical meaning of personnel.
The embodiment of the invention provides a kind of drill hammers, referring to Fig. 1 and combine Fig. 3, which includes:
Outer cylinder 23, the drill bit being fixedly connected with the lower end of outer cylinder 23 are preced with 22 and are sequentially arranged from top to bottom in outer cylinder 23
Internal rotary power assembly and torsion impact assembly.
Referring to Fig. 1 and combine Fig. 2, wherein torsion impact assembly include: be sequentially arranged from outside to inside it is coaxial with outer cylinder 23
The anvil block body 17 of the hollow circuit cylinder bodily form, the hammer body 18 of the hollow circuit cylinder bodily form and hollow cylindrical valve body 19.
There is toroidal cavity, along the diameter of valve body 19 on the outer wall of valve body 19 between the outer wall of valve body 19 and the inner wall of hammer body 18
Direction is provided with the first protrusion, toroidal cavity is separated to form high pressure chest 35 and low pressure chamber 36 by the first protrusion；On valve body 19
It is provided with the valve body deflector hole 33 of connection body cavity 31 and high pressure chest 35；The lower end of valve body 19 is connected to drill bit hat 22.
Circumferencial direction on the inner wall of anvil block body 17 along anvil block body 17 offers multiple grooves, multiple grooves and hammer body 18
Multiple working chambers 34 are formed between outer wall, along the radial direction side of hammer body 18 at position corresponding with each groove on the outer wall of hammer body 18
It is raised to being respectively arranged with second；The first hammer body for being connected to high pressure chest 35 and a working chamber 34 is provided on hammer body 18 to lead
Discharge orifice 321 and the second hammer body deflector hole 322 for being connected to low pressure chamber 36 He another working chamber 34.
Rotary power assembly is used for the trandfer fluid into body cavity 31, is that valve body 19 provides rotary power.
In drill hammer provided in an embodiment of the present invention, outer cylinder 23 is connected in the top of drill bit hat 22, outer cylinder 23 is both ends
Open hollow cylinder is sequentially arranged rotary power assembly and torsion impact assembly in outer cylinder 23 from top to bottom.Wherein, torsion
Assembly includes anvil block body 17, hammer body 18 and valve body 19, anvil block body 17, hammer body 18 and valve body 19 be the hollow circuit cylinder bodily form and
Primary setting from outside to inside, and it is coaxial with outer cylinder 23, that is, anvil block body 17 is located in outer cylinder 23, hammer body 18 is located at anvil block
In body 17, valve body 19 is located in hammer body 18.
The internal diameter of hammer body 18 is greater than the outer diameter of valve body 19, so as to toroidal cavity is formed between hammer body 18 and valve body 19, the ring
Shape cavity is by being arranged on the outer wall of valve body 19 and being separated to form high pressure chest 35 along the first protrusion of the radial direction of valve body 19
With low pressure chamber 36.The division of high pressure chest 35 and low pressure chamber 36 depends on the position of the setting of valve body deflector hole 33, with body cavity
31 connections are high pressure chest 35, and not being connected to body cavity 31 is low pressure chamber 36.Skilled artisans appreciate that
, can be only achieved along two the first protrusions of circumferencial direction setting of valve body 19 and toroidal cavity be separated into high pressure chest 35 and low pressure
The purpose of chamber 36.
The outer diameter of hammer body 18 is identical as the internal diameter of anvil block body 17, and multiple grooves are offered on the inner wall of anvil block body 17,
Mutually multiple working chambers 34 independent of each other, the quantity and anvil block body 17 of working chamber 34 are formed between groove and the outer wall of hammer body 18
The quantity of the groove opened up on inner wall is identical.The second protrusion being arranged on 18 outer wall of hammer body is then located in working chamber 34, and
The size of second protrusion is less than the size of working chamber 34, so that the second protrusion can move in working chamber 34.
One in multiple working chambers 34 can be connected to by the first hammer body deflector hole 321 on hammer body 18 with high pressure chest 35, hammer body
Another working chamber 34 can be then connected to by the second hammer body deflector hole 322 on 18 with low pressure chamber 36.It is understood that first
What hammer body deflector hole 321 and the second hammer body deflector hole 322 were located at hammer body 18 should be spaced apart, a kind of possible realization side
In formula, the first hammer body deflector hole 321 and the second hammer body deflector hole 322 are located at or are located substantially at the two of 18 same diameter of hammer body
End.
In use, high-pressure fluid (such as water) enters from 23 upper end of outer cylinder, then delivers into torsion via rotary power assembly
The body cavity 31 of the valve body 19 of power impact assembly rotates valve body 19, in 19 rotary course of valve body, the height of body cavity 31
It presses fluid to enter high pressure chest 35 by valve body deflector hole 33, then is entered in a working chamber 34 by the first hammer body deflector hole 321,
And an other working chamber 34 is then connected to by the second hammer body deflector hole 322 with low pressure chamber 36, to make 18 liang of side pressures of hammer body
Difference changes and then anvil block body 17 is pushed to rotate, in 17 rotary course of anvil block body, the inner wall of the groove on 17 inner wall of anvil block body
The second protrusion on 18 outer wall of hammer body is hit, torsion impact is generated.With the continuous rotation of valve body 19, the pressure of 18 two sides of hammer body
Cyclically-varying is generated, so that hammer body 18 and the interaction of anvil block body 17 generate periodic torsion impact, the torsion impact quilt
It is transferred to drill bit hat 22, high-frequency percussion is generated to drill bit hat 22, so that the stick-slip and intermittent bit freezing phenomenon of drill bit are effectively eliminated,
It is firmly broken to hard formation or abrasive layer rock particularly suitable in.
For anvil block body 17, outer diameter can be identical as the internal diameter of outer cylinder 23, but is to ensure that anvil block body 17 can be
It is rotated under the action of pressure difference.
The concrete form embodiment of the present invention of drill bit hat 22 is not particularly limited, conventional technical means in the art.
It will be appreciated by persons skilled in the art that in drill hammer provided in an embodiment of the present invention the upper end of outer cylinder 23 with
The connection of other drilling tools, such as drill collar.
The specific value embodiment of the present invention of above-mentioned high-pressure fluid is equally not particularly limited, common in drilling process
Fluid pressure value.
Further, as a kind of preferred embodiment of the embodiment of the present invention, along anvil block on the inner wall of anvil block body 17
The circumferencial direction of body 17 is opened up there are three groove, and three grooves are uniformly distributed.Correspondingly, on 18 outer wall of hammer body second protrusion
Quantity is also three, and is uniformly distributed along the circumferencial direction of hammer body 18.
Further, in the embodiment of the present invention, torsion impact assembly further includes the top and bottom that anvil block body 17 is arranged in
Anvil block upper cover 16 and anvil block lower cover 20, to install anvil block body 17.Also, anvil block lower cover 20 also connects with hammer body 18 and drill bit hat 22
Touching, anvil block body 17 hit the torsion impact that hammer body 18 generates and are transferred to drill bit hat 22 by anvil block lower cover 20, and drill bit is made to be preced with 22 bands
There is rotary impact power.
Further, in the embodiment of the present invention, torsion impact assembly further includes the nozzle that 19 interior lower end of valve body is arranged in
27 and for fixed nozzle 27 nozzle carrier 21.Make the lower end of valve body 19 be preced with 22 with drill bit by nozzle 27 to be connected to, valve body 19
Interior high-pressure fluid enters drill bit hat 22 through nozzle 27.
It is additionally provided with sealing ring (the second sealing ring 28 in figure) between nozzle 27 and valve body 19, is specifically as follows O-shaped close
Seal.
Further, in a kind of possible implementation of the embodiment of the present invention, using the rotary power having following structure
Assembly is that the valve body 19 of torsion impact assembly provides rotary power, is specifically included:
The power sleeve 8 of the hollow circuit cylinder bodily form coaxial with outer cylinder 23；
Inside power sleeve 8 and along multiple helical runners 9 of the axial direction of power sleeve 8 arrangement；
It is separately positioned on the first guide ring 5 of each 9 top of helical runner；
And it is set to the second guide ring 11 of the lower section of the helical runner 9 of bottom.
Wherein the first guide ring 5 is in circular ring shape, is provided with deflector hole, and the axial direction of deflector hole and power set
There is certain angle between the axial direction of cylinder 8, i.e. deflector hole on the first guide ring 5 is inclined hole.First guide ring 5 passes through top
Silk (the first jackscrew 25 in figure) is connect with power sleeve.Second guide ring 11 is then used for will be along the direction blade of helical runner 9
The high-pressure fluid of outflow imports in the body cavity 31 of valve body 9.
The quantity of helical runner 9 can be three, and correspondingly, the quantity of the first guide ring 5 is also three.
Further, rotary power assembly further include the deceleration axis 2 set gradually from top to bottom, braking axis 7 and
Impeller axis 10, wherein deceleration axis 2 is located at 8 top of power sleeve, brakes axis 7 and impeller axis 10 is located at power sleeve 8
It is internal.
It brakes between axis 7 and the first guide ring 5 of the top and impeller axis 10 and remaining first guide ring 5
Between be provided with graphite bearing shell 6.
The top and bottom of power sleeve 8 pass through plane bearing 4 and thrust bearing X righting respectively, and thrust bearing X can be selected
With CC bearing.
The top of plane bearing 4 is provided with waveform spring 3, braking is provided with above waveform spring 3 and is shorted 1.
High-pressure fluid is from after the entrance of outer cylinder 23, and along axial flowing, the first water conservancy diversion of the top is entered after deceleration axis 2
Ring 5 is flowed and is entered next by the direction blade after the first guide ring 5 outflow of the top along the helical runner 9 of the top
First guide ring 5 so recycles, and the second guide ring 11 is entered after the blade of helical runner 9 of the high-pressure fluid by bottom,
Into in the body cavity 31 of valve body 19 after 11 water conservancy diversion of the second guide ring, since high-pressure fluid is to the inner wall of body cavity 31
Percussion rotates valve body 19, to generate the effect of high frequency torsion impact to drill bit hat 22
Thrust bearing specifically includes on thrust bearing pair 15 under pair 12 and thrust bearing and is arranged on thrust bearing secondary
12 and thrust bearing under friction piece 14 under friction piece 13 and thrust bearing on thrust bearing between pair 15.Pair 15 under thrust bearing
It is fixed by jackscrew (the second jackscrew 30 in figure) with 8 lower end of power sleeve, meanwhile, pair 15 and anvil block upper cover 16 under thrust bearing
Between be provided with bolt group 29.
Further, it in the embodiment of the present invention, is provided on the outer wall at position that drill bit hat 22 is connected with outer cylinder 23
Annular groove is provided with top wire hole at outer cylinder position corresponding with annular groove.Steel ball 26, jackscrew are provided in annular groove
Jackscrew (the first jackscrew 25 in figure) is provided in hole.By above-mentioned annular groove, steel ball 26 and jackscrew by drill bit hat 22 with
The lower end of outer cylinder 23 connects.It is additionally provided with sealing ring (the first sealing ring 24 in figure) between drill bit hat 22 and outer cylinder 23, specifically
It can be O-ring seal.
The upper end of outer cylinder 23 is provided with screw thread pin thread, such as API standard screw thread, the upper end of outer cylinder 23 by screw thread pin thread with
Other drilling tools of top, such as drill collar connection.
Intermetallic composite coating manufacture can be used in all parts of drill hammer provided in an embodiment of the present invention, other can also be used
The material processing and manufacturing high-intensitive, shock resistance is good.
To sum up, the embodiment of the invention provides a kind of rotary torsion punchings that can be preced with to drill bit and generate high frequency torsion impact and act on
Hit drill bit, with overcome existing drill bit in firmly to hard formation or abrasive layer fractured rock when the stick-slip, the intermittence that generate
Bit freezing phenomenon makes drill bit and shaft bottom remain continuity, improves rate of penetration, extends drill bit and the longevity of lower drilling string combination
Life.Drill hammer structure provided in an embodiment of the present invention is simple simultaneously, and reliable working performance advantageously reduces drilling cost.
The above is merely for convenience of it will be understood by those skilled in the art that technical solution of the present invention, not to limit
The present invention.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection scope of invention.
Claims (9)
1. a kind of drill hammer characterized by comprising
Portion in the outer cylinder is preced with and is sequentially arranged from top to bottom to outer cylinder, the drill bit being fixedly connected with the lower end of the outer cylinder
Rotary power assembly and torsion impact assembly；
The torsion impact assembly includes:
The hammer body of the anvil block body of the hollow circuit cylinder bodily form coaxial with the outer cylinder being sequentially arranged from outside to inside, the hollow circuit cylinder bodily form
And the valve body of hollow cylindrical；
There is toroidal cavity, along the valve body on the outer wall of the valve body between the outer wall of the valve body and the inner wall of the hammer body
Radial direction be provided with the first protrusion, the toroidal cavity is separated to form high pressure chest and low pressure chamber by first protrusion；
The valve body deflector hole of connection body cavity and the high pressure chest is provided on the valve body；The lower end of the valve body and the drill bit
Hat connection；
Circumferencial direction on the inner wall of the anvil block body along the anvil block body offers multiple grooves, multiple grooves with it is described
Multiple working chambers are formed between the outer wall of hammer body, along described at position corresponding with each groove on the outer wall of the hammer body
The radial direction of hammer body is respectively arranged with the second protrusion；It is provided on the hammer body for being connected to described in the high pressure chest and one
First hammer body deflector hole of working chamber and the second hammer body water conservancy diversion for being connected to the low pressure chamber He another working chamber
Hole；
The rotary power assembly is used for the trandfer fluid into the body cavity, for the valve body provides rotary power；
The rotary power assembly includes:
The power sleeve of the hollow circuit cylinder bodily form coaxial with the outer cylinder；
Positioned at the power sleeves internal and along multiple helical runners of the axial direction of power sleeve arrangement；
The first guide ring being separately positioned on above each helical runner；
And it is set to the second guide ring of the lower section of the helical runner of bottom；
First guide ring is in circular ring shape, is provided with deflector hole, and the axial direction of the deflector hole on first guide ring
There is angle between direction and the axial direction of the power sleeve.
2. drill hammer according to claim 1, which is characterized in that along the anvil block body on the inner wall of the anvil block body
Circumferencial direction is opened up there are three groove, and three grooves are uniformly distributed.
3. drill hammer according to claim 1, which is characterized in that the torsion impact assembly further includes being arranged described
The anvil block upper cover and anvil block lower cover of the top and bottom of anvil block body；And the anvil block lower cover also with the hammer body and the drill bit
Crown grafting touching.
4. described in any item drill hammers according to claim 1~3, which is characterized in that the torsion impact assembly further includes
The nozzle of the valve inner lower end and the nozzle carrier for fixing the nozzle are set.
5. drill hammer according to claim 4, which is characterized in that be provided with sealing between the nozzle and the valve body
Circle.
6. drill hammer according to claim 1, which is characterized in that first guide ring passes through jackscrew and the power
Sleeve connection.
7. drill hammer according to claim 1, which is characterized in that the rotary power assembly further include from top to bottom according to
Deceleration axis, braking axis and the impeller axis of secondary setting；
The deceleration axis is located above the power sleeve, and the braking axis and the impeller axis are located at the power set
Cylinder is internal；
Between braking axis and first guide ring of the top and between the impeller axis and remaining first guide ring
It is provided with graphite bearing shell；
The top and bottom of the power sleeve pass through plane bearing and thrust bearing righting respectively；
It is provided with waveform spring above the plane bearing, braking is provided with above the waveform spring and is shorted.
8. drill hammer according to claim 1, which is characterized in that the drill bit is preced with the position being connected with the outer cylinder
It is provided with annular groove on the outer wall at place, is provided with top wire hole at outer cylinder position corresponding with the annular groove；
It is provided with steel ball in the annular groove, is provided with jackscrew in the top wire hole；
Sealing ring is additionally provided between the drill bit hat and the outer cylinder.
9. drill hammer according to claim 1, which is characterized in that the upper end of the outer cylinder is provided with screw thread pin thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611115824.9A CN108166921B (en) | 2016-12-07 | 2016-12-07 | Drill hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611115824.9A CN108166921B (en) | 2016-12-07 | 2016-12-07 | Drill hammer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108166921A CN108166921A (en) | 2018-06-15 |
| CN108166921B true CN108166921B (en) | 2019-10-11 |
Family
ID=62526132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611115824.9A Active CN108166921B (en) | 2016-12-07 | 2016-12-07 | Drill hammer |
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| Country | Link |
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| CN (1) | CN108166921B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115707853B (en) * | 2021-08-18 | 2024-10-25 | 中国石油天然气集团有限公司 | Torsional jar and application method thereof |
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| CN101463709A (en) * | 2009-01-08 | 2009-06-24 | 西南石油大学 | Torsional impact drilling tool |
| CN201818241U (en) * | 2010-10-19 | 2011-05-04 | 中国石油化工集团公司 | Torsional impact drilling tool |
| CN102454364A (en) * | 2010-10-19 | 2012-05-16 | 中国石油化工集团公司 | Torsional impact drilling tool |
| CN103075097A (en) * | 2013-01-16 | 2013-05-01 | 西南石油大学 | Torsional impact drilling acceleration tool |
| CN203430420U (en) * | 2013-08-28 | 2014-02-12 | 杨明合 | Novel torque percussion drilling tool |
| CN103774983A (en) * | 2013-12-25 | 2014-05-07 | 中国石油大学(华东) | Jet type torsional impact drilling tool |
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| CN101463709A (en) * | 2009-01-08 | 2009-06-24 | 西南石油大学 | Torsional impact drilling tool |
| CN201818241U (en) * | 2010-10-19 | 2011-05-04 | 中国石油化工集团公司 | Torsional impact drilling tool |
| CN102454364A (en) * | 2010-10-19 | 2012-05-16 | 中国石油化工集团公司 | Torsional impact drilling tool |
| CN103075097A (en) * | 2013-01-16 | 2013-05-01 | 西南石油大学 | Torsional impact drilling acceleration tool |
| CN203430420U (en) * | 2013-08-28 | 2014-02-12 | 杨明合 | Novel torque percussion drilling tool |
| CN103774983A (en) * | 2013-12-25 | 2014-05-07 | 中国石油大学(华东) | Jet type torsional impact drilling tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108166921A (en) | 2018-06-15 |
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