CN105932507A - Collector slip ring device for electric drilling tool - Google Patents
Collector slip ring device for electric drilling tool Download PDFInfo
- Publication number
- CN105932507A CN105932507A CN201610239098.5A CN201610239098A CN105932507A CN 105932507 A CN105932507 A CN 105932507A CN 201610239098 A CN201610239098 A CN 201610239098A CN 105932507 A CN105932507 A CN 105932507A
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- CN
- China
- Prior art keywords
- cable
- mandrel
- sealing
- carbon brush
- end cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000005553 drilling Methods 0.000 title claims abstract description 43
- 238000007789 sealing Methods 0.000 claims abstract description 110
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 75
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 73
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 61
- 238000004080 punching Methods 0.000 claims description 52
- 210000004907 gland Anatomy 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 5
- 238000003032 molecular docking Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 4
- 239000002002 slurry Substances 0.000 abstract description 9
- 238000004804 winding Methods 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/64—Devices for uninterrupted current collection
- H01R39/643—Devices for uninterrupted current collection through ball or roller bearing
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/003—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings with electrically conducting or insulating means
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)
- Motor Or Generator Frames (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
The invention provides a collector slip ring device for an electric drilling tool, and the device comprises a core shaft, a stator box body, an anti-twisting apparatus, a carbon brush, a copper ring, and a cable. The outer side of the core shaft is sleeved by an upper end cover and a lower end cover, and the upper and lower end covers respectively pass through an upper bearing and a lower bearing to be rotatingly connected with the core shaft. The stator box body is disposed outside the core shaft in a closed manner, wherein the upper and lower ends of the stator box body are fixedly connected with the upper and lower end covers. The anti-twisting apparatus is used for preventing the stator box body from rotating along the core shaft. The carbon brush is fixed on an insulating carbon brush fixing part, and the copper ring coaxially sleeves the exterior of the core shaft, and slidingly contacts with the carbon brush. A cable is disposed in an axial channel, and passes through a side wall of the core shaft in a sealed manner to be electrically connected with the copper ring. The device enables the stator box body to be clamped and fixed through a twisting bearing plate, prevents the stator box body from rotating with the core shaft, prevents the rotation of the cable in a drilling rod with the core shaft from causing the winding of the ground cable. A cable sealing apparatus can seal high-pressure slurry during drilling operation, and prevents the high-pressure slurry from leaking from a cable passing-through joint.
Description
Technical field
The present invention is the aid about a kind of oil and gas well drilling instrument, particularly relates to a kind of motor-driven drilling
Instrument current-collecting slip ring device.
Background technology
Electrodrill well system is to use electro-motor to replace traditional screw rod, turbine to carry out exploration of oil and gas field
Exploitation.Relatively conventional drilling mode, electrodrill well system has the advantage that
It is not limited to use the driving of tradition drilling fluid, is suitable for using any circulatory mediator from air to mud；Logical
Cross cable and can realize the two-way high capacity transmission of shaft bottom information and surface instruction, provide for effectively prevention down-hole accident
Real time information；Can independently control the pressure of the drill (moment of torsion), pumpage (pump pressure) and drill speed, optimize drilling parameter,
Improve bit speed；Change according to voltage and current parameter judges bit operation state, controls drilling process.
But, as a key technology of electrodrill well system, i.e. the collection of motor-driven drilling instrument is fluent
Loop device, there is presently no the current-collecting slip ring device that can be applicable to electrodrill drilling well of maturation.
Thus, the present inventor relies on experience and the practice being engaged in relevant industries for many years, proposes a kind of motor-driven drilling work
Tool uses current-collecting slip ring device, to overcome the defect of prior art.
Summary of the invention
It is an object of the invention to provide a kind of motor-driven drilling instrument current-collecting slip ring device, electricity can be transmitted reliably
Can, prevent cable from reversing winding along with the rotation of drilling rod.
Another object of the present invention is to provide a kind of motor-driven drilling instrument current-collecting slip ring device, it is possible to well
Seal at cable cross-under, it is to avoid the high-pressure slurry when drillng operation spills at cable cross-under.
The object of the present invention is achieved like this, a kind of motor-driven drilling instrument current-collecting slip ring device, described afflux
Slip-ring device includes:
Mandrel, the outside of described mandrel is arranged with upper end cover and bottom end cover, described upper end cover and described lower end respectively
Lid is connected with described central axis by upper bearing (metal), lower bearing respectively；Described mandrel is provided with the axial of up/down perforation
Passage；
Stator casing, described stator bin enclosure encloses the outside being located at described mandrel, and described stator casing is with described
There is between mandrel the installing space around described mandrel；The top and bottom of described stator casing are respectively with described
Upper end cover and the fixing connection of described bottom end cover；
Anti-twisting equipment, described anti-twisting equipment is fixedly connected on described upper end cover, described stator casing or described lower end
Cover, be used for preventing described upper end cover, described stator casing and described bottom end cover from rotating together along with described mandrel；
Carbon brush, described carbon brush is fixed on the carbon brush fixture of insulation, and it is described fixed that described carbon brush fixture is fixed on
In sub-casing；Described carbon brush and described carbon brush fixture are positioned at described installing space, described carbon brush with extend into
External cable electrical connection in described installing space；
Copper ring, described copper ring coaxial sleeve is located at the outside of described mandrel, and described copper ring is fixed by the copper ring of insulation
Part is fixing with described mandrel to be connected；Described copper ring be positioned at described installing space and with described carbon brush sliding contact；
Cable, described cable is arranged in described axial passage, and the first end of described cable is fixed with cable connector,
Described cable connector is fixed in described axial passage；The side of mandrel described in second end hermetically passing of described cable
Wall extend in described installing space, and the second end of described cable electrically connects with described copper ring.
In a better embodiment of the present invention, the sidewall of described mandrel is fixed with cable sealing device, institute
State cable sealing device and be provided with threading passage, described threading passage is provided with cable seal and extrudes described electricity
The pressurizing unit of cable sealing member；Second end of described cable enters described installing space by described threading passage
In.
In a better embodiment of the present invention, described cable sealing device includes the first sealing that docking connects
Block and the second sealing block, be provided with rectilinear first cable punching hole in described first sealing block, described second seals
Being provided with the second cable punching hole of L-shaped in block, described first cable punching hole communicates with described second cable punching hole, shape
Become described threading passage；
One end that described first cable punching hole adjoins with described second cable punching hole has a conical section, described taper
The larger diameter end of section is towards described second cable punching hole；The rubber sealing boot of taper it is embedded with in described conical section,
Described rubber sealing boot be axially arranged with axially extending bore, described rubber sealing boot forms described cable seal.
In a better embodiment of the present invention, described pressurizing unit includes sealing pushing block and sealing gland；Institute
Stating and seal one end adjacent with described conical section in pushing block slip is located at described second cable punching hole, described sealing pushes away
First end of block is resisted against described rubber seal and puts for extruding described rubber sealing boot；Described sealing pushing block
Second end is provided with the first inclined plane；
Described sealing gland is located at the other end of described second cable punching hole, described sealing gland have connection lid and
It is fixed on the promotion arm that described connection covers；The described lid that connects is connected with described second sealing block, described promotion arm
Stretching in described second cable punching hole, the end of described promotion arm is provided with second coordinated with described first inclined plane
Inclined plane；Described sealing gland is pushed away with the relative slip effect of described first inclined plane by described second inclined plane
Dynamic described sealing pushing block compresses described rubber sealing boot.
In a better embodiment of the present invention, the sidewall of described mandrel is provided with rectangle installing hole, and described
Forming rectangular blocks after one sealing block and described second sealing block docking welding, the welding of described cable sealing device is solid
Being scheduled in described rectangle installing hole, described first cable punching hole on described first sealing block connects towards described cable
Head.
In a better embodiment of the present invention, the cross section of described second cable punching hole is rectangle, described close
Envelope pushing block is the rectangular block coordinated with described second cable punching hole, is provided with what current supply cable passed in described sealing pushing block
3rd cable punching hole；Described connection covers and is provided with the 4th cable punching hole that current supply cable passes；Described promotion arm is right
Claiming two the rectangle support plates arranged, the side chamfering of described support plate end forms described second inclined plane.
In a better embodiment of the present invention, described carbon brush fixture is the insulation board of strip, described carbon
Brush fixture is parallel to the axis of described mandrel to be fixed；Fixed arm, described carbon brush it is convexly equipped with in described stator casing
The two ends of fixture are connected with described fixed arm by screw respectively；Described carbon brush is solid towards described mandrel direction
Fixed.
In a better embodiment of the present invention, described mandrel is positioned at described installing space there is one section of contracting
Footpath portion；Described copper ring fixture is the insulation board of strip, and screw is passed through at the two ends of described copper ring fixture respectively
It is connected in the described mandrel at described reducing diameter part two ends；Described copper ring fixture is provided with multiple, multiple described copper rings
Fixture is uniformly distributed along the circumferencial direction of described mandrel.
In a better embodiment of the present invention, described copper ring and described carbon brush are equipped with three, described copper ring
And described carbon brush is arranged along the axial uniform intervals of described mandrel.
In a better embodiment of the present invention, described mandrel lower end is positioned on the sidewall below described bottom end cover
It is provided with installation through hole, fixing equipped with cable connector fixed block, described cable connector fixed block in described installation through hole
Reaching the part in described axial passage and be provided with screwed hole, described cable connector is fixedly connected on institute by screw
State on the screwed hole of cable connector fixed block.
In a better embodiment of the present invention, described installation through hole is provided with two, two described installation through holes
It is symmetrical arranged at the diametric two ends of described mandrel.
In a better embodiment of the present invention, described anti-twisting equipment includes two bearing torque plates, described bearing torque plate
For elongated plates, one end of described bearing torque plate is fixing connects described upper end cover, and the described bearing torque plate other end is upward
Extend and position for clamping；Two described bearing torque plates are about the axially symmetric setting of described mandrel.
In a better embodiment of the present invention, corresponding described upper bearing (metal) and described lower bearing in described mandrel
Position is respectively equipped with shoulder, described upper end cover and described bottom end cover and is stairstepping, by described upper bearing (metal) and described
Lower bearing is pressed against on described shoulder；Described upper end cover and described upper bearing (metal), described bottom end cover and described lower bearing
Between be equipped with sealing ring.
In a better embodiment of the present invention, on described stator casing, the side of corresponding described carbon brush is provided with sight
Examine hole, be used for observing and safeguard described carbon brush；It has been connected by screw handhole cover on described observation port；Described
Hanger also it is fixed with on stator casing.
From the above mentioned, the current-collecting slip ring device of the present invention uses and fixes copper ring, fixed carbon in stator casing in mandrel
The structure of brush, copper ring is passed by carbon brush, copper ring with carbon brush while central axis and copper ring sliding contact, electric energy
It is delivered on cable.Make stator casing, upper and lower end cap carry out screens to fix, prevent it from following by arranging bearing torque plate
Mandrel rotates together, it is to avoid the land cable wrapping phenomena that the cable in drilling rod causes along with central axis, protects
Card well head input cable fixed installation.Cable sealing device is mainly used in sealing high-pressure slurry during drillng operation,
Prevent high-pressure slurry from spilling at cable cross-under.
Accompanying drawing explanation
The following drawings is only intended to, in schematically illustrating the present invention and explaining, not delimit the scope of the invention.
Wherein:
Fig. 1: for the principal section structural representation of current-collecting slip ring device of the present invention.
Fig. 2: for the auxiliary section structural representation of current-collecting slip ring device of the present invention.
Fig. 3: for the structural representation of central shaft of the present invention.
Fig. 4: for the structural representation of cable sealing device in the present invention.
Fig. 5: for sealing the structural representation of pushing block in the present invention.
Fig. 6: for the structural representation of sealing gland in the present invention.
Description of reference numerals:
100-current-collecting slip ring device
1-mandrel 101-axial passage 102-upper shoulder 103-lower shoulder 104-reducing diameter part 105-screwed hole
106-plane 107-rectangle installing hole 108-installs through hole
2-upper end cover
3-upper bearing (metal)
4-bottom end cover
5-lower bearing
6-stator casing 61-installing space 62-cylindrical box 63-rectangular box 64-fixed arm 65-sees
Examine hole 66-handhole cover 67-hanger
7-carbon brush fixture
8-carbon brush
9-copper ring fixture
10-copper ring
11-anti-twisting equipment 111-bearing torque plate 112-bearing torque plate fixture
12-cable sealing device 121-the first sealing block 1211-the first cable punching hole 122-the second sealing block
1221-the second cable punching hole 123-rubber sealing boot 1231-axially extending bore 124-seals pushing block 1241-rectangle
Cable punching hole 1242-the first inclined plane 125-sealing gland 1251-connects lid 1252-support plate 1253-second
Inclined plane
13-cable 131-cable connector 132-cable connector fixed block
The external cable of 14-
The upper sealing ring of 15-
16-lower seal
Detailed description of the invention
In order to the technical characteristic of the present invention, purpose and effect are more clearly understood from, now comparison accompanying drawing explanation
The detailed description of the invention of the present invention.
As depicted in figs. 1 and 2, right side is lower section for top, left side in fig. 1 and 2.The present invention provides
A kind of motor-driven drilling instrument current-collecting slip ring device 100, described current-collecting slip ring device 100 includes:
Mandrel 1, described mandrel 1 is axially extending along one, and the outside of described mandrel 1 is arranged with upper end cover 2 respectively
With bottom end cover 4, described upper end cover 2 and described bottom end cover 4 pass through upper bearing (metal) 3, lower bearing 5 respectively with described
Mandrel 1 is rotationally connected；Upper end cover 2 and described bottom end cover 4 can rotate by phase center roller 1；In described mandrel 1
It is provided with the axial passage 101 of up/down perforation；Axial passage 101 is used for wearing cable 13 and passing through drilling fluid；
Stator casing 6, described stator casing 6 is closed the outside being centered around described mandrel 1, and is positioned at upper and lower side
Between lid 2,4, form the installation around described mandrel 1 between described stator casing 6 and described mandrel 1 empty
Between 61；Stator casing 6 plays the effect of housing, protects other parts that it is internally installed, generally can use
Cylindrical shape or rectangle, the top and bottom of described stator casing 6 respectively with described upper end cover 2 and described bottom end cover
4 fixing connections；Stator casing 6, upper end cover 2 and bottom end cover 4 connect and form an entirety, with mandrel 1 it
Between produce relative rotation；
Anti-twisting equipment 11, described anti-twisting equipment 11 is fixedly connected on described upper end cover 2, it is also possible to be fixed on
On described stator casing 6 or described bottom end cover 4, be used for preventing described upper end cover 2, described stator casing 6 and
Described bottom end cover 4 entirety rotates together along with described mandrel 1；Anti-twisting equipment 11 acts primarily as the work of clamping location
With, if use attachment means entirety that upper end cover 2, stator casing 6 and bottom end cover 4 are formed with static not
Other dynamic instrument or parts connect；
Carbon brush 8, carbon brush 8, as prior art, can use the carbon brush 8 of disc spring type structure, described carbon brush 8
Being fixed on the carbon brush fixture 7 of insulation, described carbon brush fixture 7 is fixed in described stator casing 6；Institute
Stating carbon brush 8 and described carbon brush fixture 7 is positioned at described installing space 61, carbon brush 8 is positioned at the one of mandrel 1
Side, described carbon brush 8 electrically connects with the external cable 14 extending in described installing space 61；
Copper ring 10, described copper ring 10 coaxial sleeve is located at the outside of described mandrel 1, and described copper ring 10 is by insulation
Copper ring fixture 9 fixing with described mandrel 1 be connected, along with mandrel 1 together synchronous axial system；Carbon brush 8 along with
Stator casing 6 remains stationary together, described copper ring 10 be positioned at described installing space 61 and with described carbon
Brush 8 sliding contact, formation is conductively connected；
Cable 13, described cable 13 is located in described axial passage 101, and the first end of described cable 13 is solid
Surely cable connector 131, described cable connector 131 is had to be fixed in described axial passage 101；Described cable 13
The second end hermetically passing described in the sidewall of mandrel 1 extend in described installing space 61, described cable 13
Second end electrically connects with described copper ring 10；Electric energy passes to cable 13 by carbon brush 8 and copper ring 10, then by electricity
Cable 13 is delivered to downhole tool.
In use, the connection top, upper end of mandrel 1 is driven or faucet protection short circuit, in the lower end connection of mandrel 1
Plug valve, cable connector 131 is connected with the cable leading to down-hole, and mandrel 1 rotates together with drilling rod.The present invention
Current-collecting slip ring device 100 use and in mandrel 1, fix copper ring 10, fix the structure of carbon brush 8 in stator casing 6,
Copper ring 10 is with carbon brush 8 and copper ring 10 sliding contact while mandrel 1 rotation, and electric energy passes through carbon brush 8, copper ring
10 are delivered on cable 13.Make stator casing 6, upper and lower end cap integral position solid by arranging anti-twisting equipment 11
Fixed, prevent it from following mandrel 1 and rotate together, it is to avoid the cable in drilling rod rotates along with drilling rod and mandrel 1 and draws
The land cable wrapping phenomena risen, it is ensured that well head input cable fixedly mounts.
Further, the sidewall of described mandrel 1 is fixed with cable sealing device 12, described cable sealing device
12 are provided with threading passage, and this threading passage is by the axial passage 101 in mandrel 1 and the installing space outside mandrel 1
61 connections.Described threading passage is provided with cable seal and extrudes the pressurizing unit of described cable seal；
Second end of described cable 13 is entered in described installing space 61 by described threading passage, and cable seal exists
Producing sealing function between threading passage and cable, pressurizing unit makes the sealing function of cable seal strengthen, with
Adapt to the cleaner for high-pressure drilling fluid (high-pressure slurry) in axial passage 101, prevent cleaner for high-pressure drilling fluid from leaking from threading passage
Go out.
A specific embodiment of the present invention is illustrated referring to Fig. 1 to Fig. 6.
As the one of which specific embodiment of the present invention, this current-collecting slip ring device 100 includes mandrel 1, upper end
Lid 2, upper bearing (metal) 3, bottom end cover 4, lower bearing 5, stator casing 6, carbon brush fixture 7, carbon brush 8, copper ring
Fixture 9, copper ring 10, bearing torque plate 111, bearing torque plate fixture 112, cable the 13, first sealing block 121,
Second sealing block 122, rubber sealing boot 123, sealing pushing block 124 and sealing gland 125.As it is shown on figure 3,
In Fig. 3, right side is upper end, and left side is lower end.Mandrel 1 is a multidiameter, and the two ends of mandrel 1 process respectively
Having oil standard thread button for being connected with other drilling tool, upper end is box thread button, and lower end is male thread button.
The upper outside of mandrel 1 and lower outside be machined with in the annular for positioning upper bearing (metal) 3 and lower bearing 5 respectively,
Lower shoulder 102,103.Part between two shoulders, mandrel 1 is provided with one section of reducing diameter part 104, this undergauge
Portion 104 adjoins with upper shoulder 102, is positioned at the left side of upper shoulder 102 in figure, and this reducing diameter part 104 is used for sheathed
Copper ring 10 is installed.The mandrel 1 at reducing diameter part 104 two ends is respectively equipped with three screwed holes 105, is used for installing
Three copper ring fixtures 9, three screwed holes 105 of reducing diameter part 104 upper end are distributed uniformly and circumferentially, contracting
Three screwed holes 105 of lower end, footpath portion 104 are corresponding with upper end.The upside of lower shoulder 103 is (i.e. under in Fig. 3
The right side of shoulder 103) it is machined with a plane 106 on mandrel 1 outer wall, this plane 106 is machined with one
Rectangle installing hole 107, the sidewall of mandrel 1 is penetrated by this rectangle installing hole 107, is used for being welded and fixed first close
The cable sealing device 12 of envelope block the 121, second sealing block 122 composition.It is positioned at the mandrel below lower shoulder 103
On 1 sidewall, diametrically be respectively arranged at two ends with one install through hole 108 (as shown in Figure 2), peace
Dress through hole 108 is used for fixing installation cable connector fixed block 132.The central authorities of mandrel 1 are provided with through upper and lower side
Axial passage 101.
Upper end cover 2 is identical with bottom end cover 4 structure, is step-like disk, and central authorities have and mandrel 1 external diameter
The through hole adapted, is set in the upper and lower of mandrel 1.It is provided with in end cap for installing bearing and sealing ring
Shoulder, upper bearing (metal) 3 is resisted against between the upper shoulder 102 of mandrel 1 and the shoulder of upper end cover 2, be close to upper shaft
The upside holding 3 is provided with the upper sealing ring 15 being arranged in upper end cover 2 shoulder.Lower bearing 5 is resisted against mandrel 1
Lower shoulder 103 and the shoulder of bottom end cover 4 between, the downside of next-door neighbour's lower bearing 5 is provided with and is arranged on bottom end cover 4
Lower seal 16 in shoulder.
Stator casing 6 is the assembly of cylindrical box 62 and rectangular box 63, and rectangular box 63 be located in
Side and the inside of cylindrical box 62 communicate.The cylindrical box 62 part coaxial sleeve of stator casing 6
Being located at the outside of mandrel 1, the mandrel 1 that will be located between upper and lower end cap is closed, and is formed and enclose in stator casing 6
Installing space 61 around mandrel 1.The upper end of stator casing 6 is connected with upper end cover 2 by screw, stator casing
The lower end of 6 is connected with bottom end cover 4 by screw, thus upper and lower end cap and stator casing 6 are connected to become one
Can produce relative rotation between entirety, and mandrel 1.The inwall of rectangular box 63 part of stator casing 6
It is provided with the fixed arm 64 protruded out to installing space 61.Carbon brush fixture 7 uses the insulation board of strip, carbon
Brush 8 is inlayed and is fixed on carbon brush fixture 7, and the two ends of carbon brush fixture 7 are consolidated with corresponding by screw respectively
Arms 64 connects；The axis that position makes carbon brush fixture 7 be parallel to mandrel 1 that arranges of fixed arm 64 is fixed；
Carbon brush 8 stretches out towards mandrel 1 direction.The external cable 14 being connected with diesel-driven generator or industrial electrical network passes
The sidewall of stator casing 6 enters in installing space 61, electrically connects with carbon brush 8.The rectangle of stator casing 6
Casing 63 part is provided with observation port 65 in just side to carbon brush fixture 7, is used for observing and safeguard carbon brush 8；
Handhole cover 66 it has been connected by screw on observation port 65.Cylindrical box 62 portion of external of stator casing 6
Also it is fixed with hanger 67.Hanger 67 is a rectangular steel plates, welds together with stator casing 6, rectangle steel
Plate one end is machined with semi arch end and circular hole, can be used for instrument lifting.
Copper ring fixture 9 is also adopted by the insulation board of strip, and the two ends of copper ring fixture 9 are respectively by screw even
It is connected on mandrel 1 screwed hole 105 at reducing diameter part 104 two ends；Copper ring fixture 9 is provided with three, three copper rings
Fixture 9 is uniformly distributed along the circumferencial direction of mandrel 1.Copper ring 10 and carbon brush 8 also are provided with three, three copper
The inner side of ring 10 is fixed on copper ring fixture 9, slides with corresponding carbon brush 8 and connect in the outside of each copper ring 10
Touching, copper ring 10 and carbon brush 8 are arranged along the axial uniform intervals of mandrel 1.The installation through hole of mandrel 1 lower end
Fixing equipped with cable connector fixed block 132 in 108, one end of cable connector fixed block 132 passes mandrel 1 side
In wall reaches axial passage 101 and be provided with screwed hole, cable connector 131 is fixedly connected on cable by screw
On the screwed hole of fixing blocks for joints 132.
Bearing torque plate 111 is provided with two, and bearing torque plate 111 is elongated plates, and bearing torque is passed through in one end of bearing torque plate 111
Plate fixture 112 is fixing connects upper end cover 2, and bearing torque plate fixture 112 is L-shaped sheet metal component, and spiral shell is passed through in one end
Nail is fixed on upper end cover 2, and the other end is consistent with the bearing of trend of bearing torque plate 111 and passes through with bearing torque plate 111
Bolt connects.Bearing torque plate 111 other end extends upward for clamping location, is inserted into swivel bail
The bottom orifice of lower end, junction；Two bearing torque plates 111, about the axially symmetric setting of mandrel 1, make stator casing
6 and upper and lower end cap stable position.
As shown in Figure 4, the first sealing block 121 and the second sealing block 122 are rectangular block, both end docking
A rectangular block it is similarly formed after being welded as a whole.The first sealing block 121 and second that assembly welding is integrated is close
In the rectangle installing hole 107 that envelope block 122 is embedded on mandrel 1 sidewall and fix with mandrel 1 sidewall weld.The
The first cable punching hole 1211 that linear extends, the first cable punching hole 1211 during installation it is provided with in one sealing block 121
Towards cable connector 131 direction.The second cable punching hole 1221 of L-shaped it is provided with in second sealing block 122, first
Cable punching hole 1211 communicates with the second cable punching hole 1221, forms threading passage.First cable punching hole 1211
Having a conical section with second adjacent one end of cable punching hole 1221, the larger diameter end of conical section is towards the second electricity
Cable perforation 1221；The rubber sealing boot 123 of taper, axially setting of rubber sealing boot 123 it is embedded with in conical section
Having the axially extending bore 1231 passed through for cable 13, rubber sealing boot 123 forms cable seal, by certainly
The elastic deformation of body seals.One end of second cable punching hole 1221 and conical section adjoin, the other end towards
Installing space 61, the cross section of the second cable punching hole 1221 is rectangle.
As it is shown in figure 5, sealing pushing block 124 is the rectangular block coordinated with the second cable punching hole 1221, sealing pushes away
The rectangular cable perforation 1241 that current supply cable 13 passes it is provided with in block 124.Seal pushing block 124 slip and be located at second
One end (i.e. being positioned at one end of horizontal direction in Fig. 4) adjacent with conical section in cable punching hole 1221, described
The first end sealing pushing block 124 is planar ends, is resisted against on described rubber sealing boot 123 for extruding described rubber
Glue sealing shroud 123；The second end sealing pushing block 124 is provided with the first inclined plane 1242, makes sealing pushing block 124
Second end forms a long limit and a minor face.With reference to Fig. 4, seal pushing block 124 and be installed to the second cable punching hole
The horizontal ends of 1221, seals the first end of pushing block 124 towards right side, and the second end is towards left side, and second end
Long limit under, minor face is upper.Sealing gland 125 is located at the other end of the second cable punching hole 1221, i.e. Fig. 4
In the vertical end of the second cable punching hole 1221.As shown in Figure 6, described sealing gland 125 is a stool structure,
There is the connection lid 1251 of rectangle, be fixed on the two pieces of symmetrically arranged rectangle support plates 1252 connected on lid 1251
Formed and promote arm.Connect lid 1251 to be connected by screw with the second sealing block 122, cover at the second cable punching hole
The vertical end of 1221, connects lid 1251 and is provided with the cable punching hole that current supply cable 13 passes.Two pieces of rectangle support plates
1252 to stretch into the vertical end of the second cable punching hole 1221 internal and downwardly extend and seal the second end of pushing block 124
Contact.The side, end of rectangle support plate 1252 has chamfering, and this chamfering is formed and coordinates with the first inclined plane 1242
The second inclined plane 1253.When sealing gland 125 compresses downwards, the second of rectangle support plate 1252 end inclines
Inclined-plane 1253 produces relative slip with the first inclined plane 1242 sealed on pushing block 124, by the effect on inclined-plane,
Sealing pushing block 124 is promoted to move right, so that sealing pushing block 124 to compress rubber sealing boot 123.Cable 13
The second end sequentially pass through the first cable punching hole 1211, the axially extending bore 1231 of rubber sealing boot 123, seal
The rectangular cable perforation 1241 of pushing block 124 and the cable punching hole of connection lid 1251 enter in installing space 61,
Electrically connect with three copper rings 10 respectively.Sealing pushing block 124 can be promoted by moving down of sealing gland 125
Move horizontally, and then adjust cable sealing effectiveness.
When using current-collecting slip ring device operation, the connection top, upper end of mandrel 1 is driven or faucet protection short circuit, mandrel
The lower end of 1 connects upper plug valve.Electric energy is transmitted on cable by carbon brush 8, copper ring 10.Wherein bearing torque plate 111
Stator casing 6 can be avoided and up and down end cap and mandrel 1, drilling tool are servo-actuated, it is ensured that the fixing peace of well head input cable
Dress；Cable sealing device 12 can seal high-pressure slurry during drillng operation, prevents high-pressure slurry from wearing from cable
The place of connecing spills.
The current-collecting slip ring device of the invention described above uses and fixes copper ring in mandrel, fixes the knot of carbon brush in stator casing
Structure, copper ring is with carbon brush while central axis and copper ring sliding contact, and electric energy is delivered to electricity by carbon brush, copper ring
On cable.Make stator casing, upper and lower end cap carry out screens to fix, prevent it from following mandrel one by arranging bearing torque plate
Rise and rotate, it is to avoid the land cable wrapping phenomena that the cable in drilling rod causes along with central axis, it is ensured that well head
Input cable fixedly mounts.Cable sealing device is mainly used in sealing high-pressure slurry during drillng operation, prevents height
Pressure mud spills at cable cross-under.
The foregoing is only the schematic detailed description of the invention of the present invention, be not limited to the scope of the present invention.
Any those skilled in the art, equivalent done on the premise of without departing from the design of the present invention and principle becomes
Change and amendment, the scope of protection of the invention all should be belonged to.
Claims (14)
1. a motor-driven drilling instrument current-collecting slip ring device, it is characterised in that described current-collecting slip ring device bag
Include:
Mandrel, the outside of described mandrel is arranged with upper end cover and bottom end cover, described upper end cover and described lower end respectively
Lid is connected with described central axis by upper bearing (metal), lower bearing respectively；Described mandrel is provided with the axial of up/down perforation
Passage；
Stator casing, described stator bin enclosure encloses the outside being located at described mandrel, and described stator casing is with described
There is between mandrel the installing space around described mandrel；The top and bottom of described stator casing are respectively with described
Upper end cover and the fixing connection of described bottom end cover；
Anti-twisting equipment, described anti-twisting equipment is fixedly connected on described upper end cover, described stator casing or described lower end
Cover, be used for preventing described upper end cover, described stator casing and described bottom end cover from rotating together along with described mandrel；
Carbon brush, described carbon brush is fixed on the carbon brush fixture of insulation, and it is described fixed that described carbon brush fixture is fixed on
In sub-casing；Described carbon brush and described carbon brush fixture are positioned at described installing space, described carbon brush with extend into
External cable electrical connection in described installing space；
Copper ring, described copper ring coaxial sleeve is located at the outside of described mandrel, and described copper ring is fixed by the copper ring of insulation
Part is fixing with described mandrel to be connected；Described copper ring be positioned at described installing space and with described carbon brush sliding contact；
Cable, described cable is arranged in described axial passage, and the first end of described cable is fixed with cable connector,
Described cable connector is fixed in described axial passage；The side of mandrel described in second end hermetically passing of described cable
Wall extend in described installing space, and the second end of described cable electrically connects with described copper ring.
2. motor-driven drilling instrument current-collecting slip ring device as claimed in claim 1, it is characterised in that described
Being fixed with cable sealing device on the sidewall of mandrel, described cable sealing device is provided with threading passage, described threading
Passage is provided with cable seal and extrudes the pressurizing unit of described cable seal；Second end of described cable
Entered in described installing space by described threading passage.
3. motor-driven drilling instrument current-collecting slip ring device as claimed in claim 2, it is characterised in that described
Cable sealing device includes the first sealing block and second sealing block of docking connection, is provided with in described first sealing block
Rectilinear first cable punching hole, is provided with the second cable punching hole of L-shaped in described second sealing block, and described first
Cable punching hole communicates with described second cable punching hole, forms described threading passage；
One end that described first cable punching hole adjoins with described second cable punching hole has a conical section, described taper
The larger diameter end of section is towards described second cable punching hole；The rubber sealing boot of taper it is embedded with in described conical section,
Described rubber sealing boot be axially arranged with axially extending bore, described rubber sealing boot forms described cable seal.
4. motor-driven drilling instrument current-collecting slip ring device as claimed in claim 3, it is characterised in that described
Pressurizing unit includes sealing pushing block and sealing gland；Described sealing pushing block slides and is located in described second cable punching hole
One end adjacent with described conical section, the first end of described sealing pushing block be resisted against described rubber seal put for
Extrude described rubber sealing boot；Second end of described sealing pushing block is provided with the first inclined plane；
Described sealing gland is located at the other end of described second cable punching hole, described sealing gland have connection lid and
It is fixed on the promotion arm that described connection covers；The described lid that connects is connected with described second sealing block, described promotion arm
Stretching in described second cable punching hole, the end of described promotion arm is provided with second coordinated with described first inclined plane
Inclined plane；Described sealing gland is pushed away with the relative slip effect of described first inclined plane by described second inclined plane
Dynamic described sealing pushing block compresses described rubber sealing boot.
5. motor-driven drilling instrument current-collecting slip ring device as claimed in claim 3, it is characterised in that described
The sidewall of mandrel is provided with shape after rectangle installing hole, described first sealing block and described second sealing block docking welding
Rectangular block, described cable sealing device is weldingly fixed in described rectangle installing hole, described first sealing block
On described first cable punching hole towards described cable connector.
6. motor-driven drilling instrument current-collecting slip ring device as claimed in claim 4, it is characterised in that described
The cross section of the second cable punching hole is rectangle, and described sealing pushing block is the rectangle coordinated with described second cable punching hole
Block, is provided with the 3rd cable punching hole that current supply cable passes in described sealing pushing block；Described connection covers and is provided with current supply cable
The 4th cable punching hole passed；Described promotion arm is symmetrically arranged two rectangle support plates, described support plate end
Side chamfering forms described second inclined plane.
7. motor-driven drilling instrument current-collecting slip ring device as claimed in claim 1, it is characterised in that described
Carbon brush fixture is the insulation board of strip, and the axis that described carbon brush fixture is parallel to described mandrel is fixed；Institute
Being convexly equipped with fixed arm in stating stator casing, the two ends of described carbon brush fixture are respectively by screw and described fixed arm
Connect；Described carbon brush is fixed towards described mandrel direction.
8. the motor-driven drilling instrument current-collecting slip ring device as described in claim 1 or 7, it is characterised in that
It is positioned at described installing space in described mandrel and there is one section of reducing diameter part；Described copper ring fixture is the exhausted of strip
Listrium, the two ends of described copper ring fixture are connected by screw the described mandrel at described reducing diameter part two ends respectively
On；Described copper ring fixture is provided with multiple, and multiple described copper ring fixtures are uniform along the circumferencial direction of described mandrel
Distribution.
9. motor-driven drilling instrument current-collecting slip ring device as claimed in claim 8, it is characterised in that described
Copper ring and described carbon brush are equipped with three, and described copper ring and described carbon brush are along the axial uniform intervals of described mandrel
Arrange.
10. motor-driven drilling instrument current-collecting slip ring device as claimed in claim 1, it is characterised in that described
Mandrel lower end is positioned at the sidewall below described bottom end cover and is provided with installation through hole, in described installation through hole fixing equipped with
Cable connector fixed block, the part that described cable connector fixed block reaches in described axial passage is provided with screw thread
Hole, described cable connector is fixedly connected on the screwed hole of described cable connector fixed block by screw.
11. motor-driven drilling instrument current-collecting slip ring devices as claimed in claim 10, it is characterised in that institute
Stating installation through hole and be provided with two, two described installation through holes set in the diametric two ends symmetry of described mandrel
Put.
12. motor-driven drilling instrument current-collecting slip ring devices as claimed in claim 1, it is characterised in that described
Anti-twisting equipment includes that two bearing torque plates, described bearing torque plate are elongated plates, and one end of described bearing torque plate is fixing to be connected
Described upper end cover, the described bearing torque plate other end extends upward for clamping location；Two described bearing torque plates about
The axially symmetric setting of described mandrel.
13. motor-driven drilling instrument current-collecting slip ring devices as claimed in claim 1, it is characterised in that described
In mandrel, the position of corresponding described upper bearing (metal) and described lower bearing is respectively equipped with shoulder, described upper end cover and described under
End cap is stairstepping, described upper bearing (metal) and described lower bearing is pressed against on described shoulder；Described upper end cover with
It is equipped with sealing ring between described upper bearing (metal), described bottom end cover and described lower bearing.
14. motor-driven drilling instrument current-collecting slip ring devices as claimed in claim 1, it is characterised in that described
On stator casing, the side of corresponding described carbon brush is provided with observation port, is used for observing and safeguard described carbon brush；Described sight
Examine and on hole, be connected by screw handhole cover；Hanger also it is fixed with on described stator casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610239098.5A CN105932507B (en) | 2016-04-18 | 2016-04-18 | Motor-driven drilling tool current-collecting slip ring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610239098.5A CN105932507B (en) | 2016-04-18 | 2016-04-18 | Motor-driven drilling tool current-collecting slip ring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105932507A true CN105932507A (en) | 2016-09-07 |
| CN105932507B CN105932507B (en) | 2018-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610239098.5A Active CN105932507B (en) | 2016-04-18 | 2016-04-18 | Motor-driven drilling tool current-collecting slip ring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021213798A1 (en) * | 2020-04-25 | 2021-10-28 | Think And Vision Gmbh | Device for transferring data and/or power in a derrick or in a handling winch |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201794532U (en) * | 2010-09-07 | 2011-04-13 | 荆州市现代石油科技发展有限公司 | Anti-torsion air operated slip for drill collar casing |
| CN203347681U (en) * | 2013-06-25 | 2013-12-18 | 中国海洋石油总公司 | Cam type high-frequency percussion drilling tool |
| CN105449592A (en) * | 2015-11-27 | 2016-03-30 | 中国石油集团钻井工程技术研究院 | Cable pay-off device for downhole instrument and pay-off method |
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2016
- 2016-04-18 CN CN201610239098.5A patent/CN105932507B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201794532U (en) * | 2010-09-07 | 2011-04-13 | 荆州市现代石油科技发展有限公司 | Anti-torsion air operated slip for drill collar casing |
| CN203347681U (en) * | 2013-06-25 | 2013-12-18 | 中国海洋石油总公司 | Cam type high-frequency percussion drilling tool |
| CN105449592A (en) * | 2015-11-27 | 2016-03-30 | 中国石油集团钻井工程技术研究院 | Cable pay-off device for downhole instrument and pay-off method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021213798A1 (en) * | 2020-04-25 | 2021-10-28 | Think And Vision Gmbh | Device for transferring data and/or power in a derrick or in a handling winch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105932507B (en) | 2018-08-14 |
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