CN107013164A - Underground double motor equipment - Google Patents
Underground double motor equipment Download PDFInfo
- Publication number
- CN107013164A CN107013164A CN201710404329.8A CN201710404329A CN107013164A CN 107013164 A CN107013164 A CN 107013164A CN 201710404329 A CN201710404329 A CN 201710404329A CN 107013164 A CN107013164 A CN 107013164A
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- Prior art keywords
- rotor
- helical duct
- drilling rod
- stator case
- power transmission
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Links
- 238000005553 drilling Methods 0.000 claims abstract description 109
- 239000012530 fluid Substances 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims description 40
- 230000008878 coupling Effects 0.000 claims description 30
- 238000010168 coupling process Methods 0.000 claims description 30
- 238000005859 coupling reaction Methods 0.000 claims description 30
- 239000007788 liquid Substances 0.000 claims description 18
- 125000006850 spacer group Chemical group 0.000 claims description 10
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 241001484259 Lacuna Species 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/02—Fluid rotary type drives
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- 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 underground double motor equipment, including：Stator case；The first rotor, it forms the first helical duct between stator case；Second rotor, it forms the second helical duct between stator case；First drilling rod, it is rotated with the first rotor；Second drilling rod, it is rotated with the second rotor, and the first drilling rod wears the second drilling rod, and the head of the first drilling rod protrudes from the head of the second drilling rod；First drill bit, it is installed in the head of the first drilling rod；And second drill bit, it is installed in the head of the second drilling rod；When drilling fluid is by the first helical duct and the second helical duct, the first rotor and the second rotor can form differential rotation.The present invention accelerates the process of drilling well, and wear and tear using the differential synchronization for realizing two drill bits of two drill bits using coaxial and non-interference when rotating two drill bits progress drilling well.
Description
Technical field
The present invention relates to drilling technology field, more particularly to a kind of underground double motor equipment.
Background technology
Well dynamic device (or helicoid hydraulic motor) of the prior art is broken using the drill bit for being installed in boring bar head
(rotary power of the drill bit is provided by screw motor, i.e. spiral together with being formed with the rotor that drilling rod is connected with stator case for rock drilling well
Passage, drilling fluid can force rotor to rotate when passing through helical duct).
Drill bit is in drilling process, and the linear velocity due to drill bit closer to the position of pivot is smaller, further away from center
The linear velocity of position is bigger, so as to cause the abrasion further away from the position at center bigger, the external diameter of drill bit is less and less because wearing and tearing,
Ultimately result in well that institute's drilling goes out because radial dimension is small can not meet requirement or needs frequently more bit change to ensure brill
Cut out sufficiently large well.
The content of the invention
For above-mentioned technical problem present in prior art, The embodiment provides a kind of double dynamical dress in underground
Put.
In order to solve the above technical problems, the technical scheme that embodiments of the invention are used is：
A kind of underground double motor equipment, including：
Stator case；
The first rotor, it is arranged in the stator case and the first helical duct is formed between the stator case；
Second rotor, it is arranged in the stator case and the second helical duct is formed between the stator case；It is described
First helical duct is connected with second helical duct；
First drilling rod, it is rotated with the first rotor；
Second drilling rod, it is rotated with second rotor, and first drilling rod wears second drilling rod, and described first
The head of drilling rod protrudes from the head of second drilling rod；
First drill bit, it is installed in the head of first drilling rod；And
Second drill bit, it is installed in the head of second drilling rod, wherein,
When drilling fluid is by first helical duct and second helical duct, the first rotor and described second
Rotor can form differential rotation.
Preferably, first helical duct is close to the afterbody of the stator case, and second helical duct is close to described
The head of stator case, leads to so that the drilling fluid entered from the stator case afterbody in the stator case sequentially passes through first spiral
Road and second helical duct.
Preferably, the underground double motor equipment also includes the first drive assembly being arranged in the stator case, described
First drive assembly includes the first power transmission shaft, and the first rotor is connected by first power transmission shaft with first drilling rod,
Offer the first liquid-conveying ducts along its axial direction in first power transmission shaft, first helical duct by the first liquid-conveying ducts with
The second helical duct connection.
Preferably, first drive assembly also includes being arranged between first power transmission shaft and the first rotor
First shaft coupling；In the first rotor the second liquid-conveying ducts, the first shaft coupling and the stator are offered along its axial direction
First annular liquid guiding cavity is formed between shell, the first shaft coupling is by the first by-pass connection and the first rotor away from described
One end connection of stator case afterbody, the first rotor is provided with shower nozzle close to one end of the stator case afterbody, so that from institute
The drilling fluid for stating the outflow of the first helical duct is divided into two-way：Wherein led successively through the first annular liquid guiding cavity, described first all the way
Liquid passage flows into second helical duct；Another road is successively through first by-pass connection, second liquid-conveying ducts from institute
State shower nozzle ejection.
Preferably, first drive assembly also includes second driving shaft, and the second driving shaft wears described second turn
Son, first power transmission shaft is connected by the second driving shaft with first drilling rod.
Preferably, first drive assembly also includes being arranged in the 3rd power transmission shaft in second drilling rod, and described the
One end of three power transmission shafts is connected with the second driving shaft, and the other end is connected with first drilling rod, so that second transmission
Axle is connected by the 3rd power transmission shaft with first drilling rod.
Preferably, first drive assembly also includes second shaft coupling, and one end of the second shaft coupling passes through second
By-pass connection is connected with first power transmission shaft, and the other end of the second shaft coupling is connected with the second driving shaft, described
Second shaft coupling surrounds the second ring for connecting first liquid-conveying ducts and second helical duct with the stator case
Shape liquid guiding cavity, so that the drilling fluid flowed out from first liquid-conveying ducts enters second spiral shell after the described second annular liquid guiding cavity
Revolve passage.
Preferably, the second shaft coupling includes body and mandrel, one end of the body and second by-pass connection
Connection, one end of the mandrel stretched into the body from the other end of the body, the other end of the mandrel and described the
Two power transmission shafts are connected, and the mandrel is coordinated with the body in the way of it can rotate coaxially.
Preferably, the underground double motor equipment also includes the 3rd shaft coupling, and second rotor passes through the described 3rd
Axle device is connected with second drilling rod.
Preferably, the afterbody of the stator case is fixed with the interface set for being connected with external hydraulic pump, described first turn
Sub that spacer is provided between the stator case, the spacer is fixedly connected with the interface set, the spacer and described first
First helical duct is formed between rotor.
Compared with prior art, the beneficial effect for the underground double motor equipment that embodiments of the invention are provided is：
1st, the present invention accelerates entering for drilling well using coaxial and non-interference when rotating two drill bits progress drilling well
Journey, and realize the synchronous abrasion of two drill bits using the differential of two drill bits.
2nd, the present invention makes the first helical duct and the second helical duct be formed in the inside of stator case, and axially aligned,
Can be respectively that the first drill bit and the second drill bit provide power on the premise of the radial dimension of stator case is not increased.
Brief description of the drawings
The overall structure diagram for the underground double motor equipment that Fig. 1 provides for embodiments of the invention.
The structural representation for being segmented expression side by side for the underground double motor equipment that Fig. 2 provides for embodiments of the invention.
In figure：
10- stator cases；11- spacers；20- the first rotors；The helical ducts of 21- first；The liquid-conveying ducts of 22- second；23- sprays
Head；The rotors of 30- second；The helical ducts of 31- second；The drilling rods of 40- first；The drilling rods of 50- second；The drill bits of 60- first；70- second is bored
Head；The power transmission shafts of 81- first；The liquid-conveying ducts of 811- first；The first annular liquid guiding cavities of 821-；The by-pass connections of 822- first；823- connects
Spindle；The joints of 824- first；The joints of 825- second；83- second driving shafts；The power transmission shafts of 84- the 3rd；The by-pass connections of 851- second；
The annular liquid guiding cavities of 852- second；853- bodies；854- mandrels；The joints of 911- the 3rd；The joints of 912- the 4th；913- adapter sleeves；
100- interface sets.
Embodiment
To make those skilled in the art be better understood from technical scheme, below in conjunction with the accompanying drawings and specific embodiment party
Formula elaborates to the present invention.
As depicted in figs. 1 and 2, embodiment of the invention discloses that a kind of underground double motor equipment, for rock-breaking and well-drilling, is somebody's turn to do
Underground double motor equipment includes stator case 10, the first rotor 20, the second rotor 30, the first drilling rod 40, the second drilling rod 50, first and bored
First 60 and second drill bit 70.Stator case 10 is in elongated tubular, and the stator case 10 can be made up of a long tube, also can be by multiple short tubes
Docking is formed, and in the present embodiment, stator case 10 is docked by multiple short tubes and formed.The first rotor 20 is spindle rotationally arranged in stator
In shell 10, and the first rotor 20 surrounds the first helical duct 21 with stator case 10, so that the first rotor 20 and stator case 10
A screw motor is constituted, when drilling fluid passes through the first helical duct 21 with certain pressure, drilling fluid causes 20 turns of the first rotor
It is dynamic.Second rotor 30 is spindle rotationally arranged in stator case 10, and is set in the axial direction of stator case 10 with the interval of the first rotor 20
Put, and the second rotor 30 surrounds the second helical duct 31 with stator case 10, so that the second rotor 30 is constituted with stator case 10
Another screw motor, when drilling fluid passes through the second helical duct 31 with certain pressure, drilling fluid can also cause 30 turns of the second rotor
Move, and the first helical duct 21 is connected with the second helical duct 31.First drilling rod 40 directly or indirectly connects with the first rotor 20
Connect when the first rotor 20 is rotated the first drilling rod 40 can be driven to rotate.Second drilling rod 50 directly or indirectly with the second rotor
30 connections when the second rotor 30 is rotated can drive the second drilling rod 50 to rotate, and the first drilling rod 40 wears the second drilling rod
50, the head of the first drilling rod 40 protrudes from the head of the second drilling rod 50, exists between the first drilling rod 40 and the second drilling rod 50 certain
Gap is so that two drilling rods are non-interference when rotating.First drill bit 60 is installed in the head of the first drilling rod 40, and the second drill bit 70 is installed
Drill diameter on the head of the second drilling rod 50, and the first drill bit 60 is less than the drill diameter of the second drill bit 70.
Understood according to above-mentioned, when afterbody and the compression pump of stator case 10, (compression pump is used to provide tool into stator case 10
Have the drilling fluid of certain pressure) connection after, compression pump to stator case 10 be pumped into drilling fluid when, drilling fluid sequentially passes through the first helical duct 21
With the second helical duct 31, the rotor 30 of the first rotor 20 and second can rotate, while the rotor 30 of the first rotor 20 and second
Rotated respectively by the first drilling rod 40 and the second drilling rod 50 correspondence the first drill bit 60 of driving and the second drill bit 70.The key of the present invention
It is：By setting the parameter of the first helical duct 21 and the second helical duct 31, such as flow area, helical pitch parameter or logical
The pressure differential of the drilling fluid of the first helical duct 21 of control and the second helical duct 31 is crossed, the rotor of the first rotor 20 and second can be made
The relation for the rotating speed that the rotating speed that 30 rotating speed is configured to the first rotor 20 is more than the second rotor 30 (can certainly be configured to first
The rotating speed of rotor 20 is less than the relation of the rotating speed of the second rotor 30).In this way, when the underground double motor equipment drilling well using the present invention
When, the first drill bit 60 with very fast rotating speed is used for broken rock, and the second drill bit 70 with compared with low-rotate speed is used to expand well.It is important
Be：Because the diameter of the first drill bit 60 is smaller, and rotating speed is very fast, and the second drill bit 70 is relatively large in diameter, and rotating speed is slower, from
And make it that the linear velocity of linear velocity and each position on the second drill bit 70 of each position on the first drill bit 60 is more or less the same, so that
The first drill bit 60 and the rate of wear of the second drill bit 70 is set to be more or less the same, so as to which obtain can be while change the good of two drill bits
Using effect (in engineering goods, enable each replaceable parts synchronous consumption to reach and meanwhile change effect
Fruit is to consider the good and bad one side of product).
Two advantages of the present invention are：
1st, the present invention makes the first helical duct 21 and the second helical duct 31 form the inside in stator case 10, and vertically
Arrangement, can be respectively that the first drill bit 60 and the second drill bit 70 are provided on the premise of the radial dimension of stator case 10 is not increased
Power.
2nd, the present invention accelerates entering for drilling well using coaxial and non-interference when rotating two drill bits progress drilling well
Journey, and realize the synchronous abrasion of two drill bits using the differential of two drill bits.
The forming position of first helical duct 21 and the second helical duct 31 in the axial direction of stator case 10 is not restricted by,
That is, the first helical duct 21 is closer to the head of stator case 10 or the second helical duct 31 closer to stator case 10
It is differential that head can realize the rotor 30 of the first rotor 20 and second.In a preferred embodiment of the invention, the first spiral shell
Afterbody of the passage 21 close to stator case 10 is revolved, the second helical duct 31 is close to the head of stator case 10, so that from the tail of stator case 10
The drilling fluid that portion enters in stator case 10 sequentially passes through the first helical duct 21 and the second helical duct 31.
The first rotor 20 directly can be connected with the first drilling rod 40, can be also connected by drive disk assembly with the first drilling rod 40, but
Because stator case 10 is the larger part of draw ratio, if the first rotor 20 is directly connected to the first drilling rod 40, the first drilling rod need to be made
40 are processed into very long bar, and this certainly will increase difficulty of processing, and the first long drilling rod 40 be also for transmission it is unfavorable, because
This, in a preferred embodiment of the invention, as depicted in figs. 1 and 2, underground double motor equipment includes being arranged at stator case 10
The first interior drive assembly, the first rotor 20 drives the first drilling rod 40 to rotate by the first drive assembly.Specifically, first biography
Dynamic assembly includes the first larger power transmission shaft 81 of a draw ratio, and the first rotor 20 passes through the first power transmission shaft 81 and the first drilling rod 40
The first liquid-conveying ducts 811 are offered along its axial direction in connection, the first power transmission shaft 81, the first helical duct 21 is logical by the first drain
Road 811 is connected with the second helical duct 31.
Understood according to above-mentioned, the first rotor 20 drives the first drilling rod 40 by the first drive assembly, so as to avoid first
Drilling rod 40 processes long.
Because the draw ratio of stator case 10 is larger, and the first helical duct 21 and the second helical duct 31 are located at stator respectively
The afterbody of shell 10 and head, if two helical ducts of connection are always the lacuna that the first drive assembly is surrounded with stator case 10, are bored
Liquid is after very long lacuna, and its energy potential must weaken, and rotates totally unfavorable to the second rotor 30 of driving.Therefore, first pass
The purpose that the first liquid-conveying ducts 811 are opened up in moving axis 81 is：Make drilling fluid from the first helical duct 21 flow to the second spiral lead to
(the relative lacuna of the first liquid-conveying ducts 811 of the first liquid-conveying ducts 811 for occupying longer one section of axial distance is flowed through during road 31
Smaller to the resistance of drilling fluid, the energy expenditure that drilling fluid flows through the first liquid-conveying ducts 811 is less) so that the less energy of drilling fluid
Consumption.
In a preferred embodiment of the invention, the first drive assembly also includes being arranged at the first power transmission shaft 81 and first
First shaft coupling between rotor 20；Offer the second liquid-conveying ducts 22 along its axial direction in the first rotor 20, first shaft coupling with
First annular liquid guiding cavity 821 is formed between stator case 10, first shaft coupling is remote by the first by-pass connection 822 and the first rotor 20
One end from the afterbody of stator case 10 is connected, and the first rotor 20 is provided with shower nozzle 23 close to one end of the afterbody of stator case 10, so that from
The drilling fluid of first helical duct 21 outflow is divided into two-way：Wherein all the way successively through first annular liquid guiding cavity 821, the first liquid-conveying ducts
811 flow into the second helical duct 31；Another road sprays through the first by-pass connection 822, the second liquid-conveying ducts 22 from shower nozzle 23 successively.
Specifically, first shaft coupling includes what is be connected with the first joint 824 of the first by-pass connection 822 connection, with the first power transmission shaft 81
Second joint 825 and the connecting shaft 823 being connected between the first joint 824 and the second joint 825.In the present embodiment, exist
The second liquid-conveying ducts 22 are opened up in the first rotor 20 and the effect of shower nozzle 23 is set up is made by way of the aerial drainage of shower nozzle 23
The drilling fluid flowed out from the first helical duct 21 is maintained in certain pressure value or certain range of pressure values.
In a preferred embodiment of the invention, as shown in Fig. 2 the first drive assembly also includes second driving shaft 83,
Second driving shaft 83 wears the second rotor 30, and the first power transmission shaft 81 is connected by second driving shaft 83 with the first drilling rod 40.Second
First power transmission shaft 81 of the both sides in the axial direction of the second rotor 30 is connected to reach by power transmission shaft 83 with the first drilling rod 40
First power transmission shaft 81 does not influence the purpose of the second rotor 30 when driving the first drilling rod 40.
In a preferred embodiment of the invention, the first drive assembly also includes the 3rd power transmission shaft 84, the 3rd power transmission shaft
84 one end is connected with second driving shaft 83, and the other end is stretched into the second drilling rod 50 and is connected with the first drilling rod 40.
Understood according to above-mentioned, the first rotor 20 passes through the first power transmission shaft 81 being sequentially connected, second driving shaft 83 and the
Three power transmission shafts 84 realize the driving to the first drilling rod 40.
In a preferred embodiment of the invention, the first drive assembly also includes being arranged at the first power transmission shaft 81 and second
Second shaft coupling between power transmission shaft 83, one end of second shaft coupling is connected by the second by-pass connection 851 with the first power transmission shaft 81
Connect, the other end of second shaft coupling is connected with second driving shaft 83, second shaft coupling is surrounded for connecting first with stator case 10
The annular liquid guiding cavity 852 of the second of the helical duct 31 of liquid-conveying ducts 811 and second, so that the brill flowed out from the first liquid-conveying ducts 811
Liquid enters the second helical duct 31 after the second annular liquid guiding cavity 852.Specifically, second shaft coupling includes body 853 and mandrel
854, one end of body 853 is connected with the second by-pass connection 851, and the other end of body 853 offers hexagonal hole, core along its axial direction
One end of axle 854 is arranged to hexagonal prism, and the hexagonal prism is stretched in hexagonal hole, so as to realize mandrel 854 and body 853
Synchronous axial system.
In a preferred embodiment of the invention, the second rotor 30 drives the second drilling rod 50, tool by the 3rd shaft coupling
Body, the 3rd shaft coupling includes the 3rd joint 911, the 4th joint 912 and adapter sleeve 913, and adapter sleeve 913 is installed in the 3rd and connect
First 911 and the 4th between joint 912, and the 3rd joint 911 is connected with the second rotor 30, and the 4th joint 912 connects with the second drilling rod 50
Connect.
First helical duct 21 can be surrounded directly by stator case 10 with the first rotor 20, also can be by means of being arranged at stator case
Miscellaneous part in 10 is surrounded with the first rotor 20, and in a preferred embodiment of the invention, the afterbody of stator case 10 is fixed
There is the interface set 100 for being connected with external hydraulic pump, spacer 11, spacer 11 are provided between the first rotor 20 and stator case 10
It is fixedly connected with interface set 100, the first helical duct 21 is surrounded between spacer 11 and the first rotor 20.In this way, can be by changing
The structure snd size of spacer 11 change the parameter of the first helical duct 21.
Above example is only the exemplary embodiment of the present invention, is not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can make respectively in the essence and protection domain of the present invention to the present invention
Modification or equivalent substitution are planted, this modification or equivalent substitution also should be regarded as being within the scope of the present invention.
Claims (10)
1. a kind of underground double motor equipment, it is characterised in that including：
Stator case；
The first rotor, it is arranged in the stator case and the first helical duct is formed between the stator case；
Second rotor, it is arranged in the stator case and the second helical duct is formed between the stator case；Described first
Helical duct is connected with second helical duct；
First drilling rod, it is rotated with the first rotor；
Second drilling rod, it is rotated with second rotor, and first drilling rod wears second drilling rod, and first drilling rod
Head protrude from the head of second drilling rod；
First drill bit, it is installed in the head of first drilling rod；And
Second drill bit, it is installed in the head of second drilling rod, wherein,
When drilling fluid is by first helical duct and second helical duct, the first rotor and second rotor
Differential rotation can be formed.
2. underground double motor equipment according to claim 1, it is characterised in that first helical duct is close to described fixed
The afterbody of sub- shell, second helical duct is close to the head of the stator case, so as to enter described from the stator case afterbody
Drilling fluid in stator case sequentially passes through first helical duct and second helical duct.
3. underground double motor equipment according to claim 2, it is characterised in that the underground double motor equipment also includes setting
The first drive assembly being placed in the stator case, first drive assembly includes the first power transmission shaft, and the first rotor leads to
Cross first power transmission shaft to be connected with first drilling rod, offering the first drain along its axial direction in first power transmission shaft leads to
Road, first helical duct is connected by the first liquid-conveying ducts with second helical duct.
4. underground double motor equipment according to claim 3, it is characterised in that first drive assembly also includes setting
First shaft coupling between first power transmission shaft and the first rotor；The is offered along its axial direction in the first rotor
Two liquid-conveying ducts, form first annular liquid guiding cavity between the first shaft coupling and the stator case, the first shaft coupling is led to
Cross the first by-pass connection to be connected with the one end of the first rotor away from the stator case afterbody, the first rotor is close to described
One end of stator case afterbody is provided with shower nozzle, so that the drilling fluid flowed out from first helical duct is divided into two-way：Wherein all the way
Successively second helical duct is flowed into through the first annular liquid guiding cavity, first liquid-conveying ducts；Another road is successively through institute
The first by-pass connection, second liquid-conveying ducts is stated to spray from the shower nozzle.
5. underground double motor equipment according to claim 4, it is characterised in that first drive assembly also includes second
Power transmission shaft, the second driving shaft wears second rotor, first power transmission shaft by the second driving shaft with it is described
First drilling rod is connected.
6. underground double motor equipment according to claim 5, it is characterised in that first drive assembly also includes wearing
The 3rd power transmission shaft in second drilling rod, one end of the 3rd power transmission shaft is connected with the second driving shaft, the other end
It is connected with first drilling rod, so that the second driving shaft is connected by the 3rd power transmission shaft with first drilling rod.
7. the underground double motor equipment according to claim 5 or 6, it is characterised in that first drive assembly also includes
Second shaft coupling, one end of the second shaft coupling is connected by the second by-pass connection with first power transmission shaft, and described second
The other end of shaft coupling is connected with the second driving shaft, and the second shaft coupling surrounds described for connecting with the stator case
Second annular liquid guiding cavity of the first liquid-conveying ducts and second helical duct, so that the brill flowed out from first liquid-conveying ducts
Liquid enters second helical duct after the described second annular liquid guiding cavity.
8. underground double motor equipment according to claim 7, it is characterised in that the second shaft coupling includes body and core
Axle, one end of the body is connected with second by-pass connection, and one end of the mandrel is stretched into from the other end of the body
In the body, the other end of the mandrel is connected with the second driving shaft, and the mandrel and the body are with can be coaxial
The mode of rotation coordinates.
9. underground double motor equipment according to claim 1, it is characterised in that the underground double motor equipment also includes the
Three shaft couplings, second rotor is connected by the 3rd shaft coupling with second drilling rod.
10. underground double motor equipment according to claim 1, it is characterised in that the afterbody of the stator case is fixed with use
Be provided with spacer between the interface set being connected with external hydraulic pump, the first rotor and the stator case, the spacer with
The interface set is fixedly connected, and first helical duct is formed between the spacer and the first rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710404329.8A CN107013164B (en) | 2017-06-01 | 2017-06-01 | Underground double motor equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710404329.8A CN107013164B (en) | 2017-06-01 | 2017-06-01 | Underground double motor equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107013164A true CN107013164A (en) | 2017-08-04 |
| CN107013164B CN107013164B (en) | 2019-01-29 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710404329.8A Active CN107013164B (en) | 2017-06-01 | 2017-06-01 | Underground double motor equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984845A (en) * | 2019-12-31 | 2020-04-10 | 中国石油集团川庆钻探工程有限公司 | Well drilling speed increasing method for changing bottom hole confining pressure distribution by middle energy accumulation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110984845A (en) * | 2019-12-31 | 2020-04-10 | 中国石油集团川庆钻探工程有限公司 | Well drilling speed increasing method for changing bottom hole confining pressure distribution by middle energy accumulation |
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| Publication number | Publication date |
|---|---|
| CN107013164B (en) | 2019-01-29 |
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Denomination of invention: Underground dual power device Effective date of registration: 20230324 Granted publication date: 20190129 Pledgee: Cangzhou Bank Co.,Ltd. Bazhou Branch Pledgor: ORIENT ENERGY & TECHNOLOGIES Co.,Ltd. Registration number: Y2023980036202 |