CN208040824U - Rotary steering drilling tool double-piston backup component - Google Patents
Rotary steering drilling tool double-piston backup component Download PDFInfo
- Publication number
- CN208040824U CN208040824U CN201820006654.9U CN201820006654U CN208040824U CN 208040824 U CN208040824 U CN 208040824U CN 201820006654 U CN201820006654 U CN 201820006654U CN 208040824 U CN208040824 U CN 208040824U
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- piston
- backup
- oil
- shell
- pressing plate
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- 238000005553 drilling Methods 0.000 title claims abstract description 29
- 238000003825 pressing Methods 0.000 claims abstract description 47
- 239000000428 dust Substances 0.000 claims abstract description 22
- 230000037361 pathway Effects 0.000 claims abstract description 20
- 238000003860 storage Methods 0.000 claims abstract description 20
- 239000000446 fuel Substances 0.000 claims description 12
- 210000004907 gland Anatomy 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 79
- 239000002775 capsule Substances 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model is related to drilling equipment technical fields, it is a kind of rotary steering drilling tool double-piston backup component, including backup shell, piston pressing plate and piston-cylinder component, piston-cylinder component includes oil cylinder set, actuating plunger, piston jacking block and dust cover, backup shell is equipped with the pistion recess of opening upwards, piston pressing plate is installed with for the backup upper part of the housing of pistion recess position, piston storage chamber is formed between piston pressing plate and backup shell, backup shell is equipped with the piston feed pathway that can be communicated with piston storage chamber；Piston pressing plate is equipped at least two piston mounting holes, and the oil cylinder set that lower part is located in piston storage chamber is equipped in each piston mounting holes.The utility model reasonable and compact in structure, it can realize inside and outside stress balance by dust cover, thus can be used for underground Operating Pressure, and the deflection precision of rotary steering drilling tool can be improved in backplate using double-piston collective effect, and failure rate can be reduced, extend the action time of entire instrument.
Description
Technical field
The utility model is related to drilling equipment technical fields, are a kind of rotary steering drilling tool double-piston backup groups
Part.
Background technology
In drilling process, vertical drilling tool can meet the requirement of well track by adjusting hole deviation in real time, make
Drill bit reaches scheduled target.For pushing type vertical drilling tool using relatively broad, which, which passes through, controls three hydraulic modules
Action realize that guide function, hydraulic module integrate mechanical, electrical, liquid, be vital one in vertical drilling tool
Point, however the various problems such as the hydraulic module of existing vertical drilling tool mostly has a high failure rate, and control accuracy is low, cause
Entire instrument cannot continuously work for a long time.
Invention content
The utility model provides a kind of rotary steering drilling tool double-piston backup component, overcomes above-mentioned existing skill
The deficiency of art can effectively solve high failure rate existing for existing piston backup equipment, and control accuracy is low, and entire instrument is continuously made
Industry time short problem.
The technical solution of the utility model is realized by following measures：A kind of rotary steering drilling tool dual-active
Backup component, including backup shell, piston pressing plate and piston-cylinder component are filled in, piston-cylinder component includes oil cylinder set, start work
Plug, piston jacking block and dust cover, backup shell is equipped with the pistion recess of opening upwards, for the backup shell of pistion recess position
Body top is installed with piston pressing plate, and piston storage chamber is formed between piston pressing plate and backup shell, and backup shell is equipped with
The piston feed pathway that can be communicated with piston storage chamber；Piston pressing plate is equipped at least two piston mounting holes, each piston peace
It is equipped with the oil cylinder set that lower part is located in piston storage chamber in dress hole, energy is formed between the lower end and backup shell of each oil cylinder set
It is connected to the communication gap of oily cylinder sleeve bore and piston storage chamber, actuating plunger, each actuating plunger are equipped in each oil cylinder set
Top be equipped with piston jacking block, the piston jacking block can move with corresponding actuating plunger and generate angular deflection, oil cylinder set
Upper end is located at the top of piston pressing plate, and piston jacking block is equipped with above piston pressing plate between being covered with corresponding oil cylinder and can be with work
Piston movement generates the dust cover for stretching or compressing, and the upper outside that the lower end inside of dust cover is covered with oil cylinder is fixedly mounted on
Together, it is fixedly installed togather with the upper outside of piston jacking block on the inside of the upper end of dust cover.
Here is the further optimization and/or improvements to above-mentioned utility model technical solution：
It can be equipped with the trapped fuel groove of opening upwards on above-mentioned backup shell, correspond to solid on the backup shell of trapped fuel groove location
Dingan County is equipped with oil sac pressing plate, and the middle part of oil sac pressing plate is equipped with oil sac mounting hole, the oil sac that Open Side Down is equipped in oil sac mounting hole
Ontology, oil sac ontology lower end outside, which is equipped with, is pressed on installation edge between oil sac pressing plate and backup shell, oil sac ontology with push away
Trapped fuel chamber is formed between shell, backup shell is equipped with the oil sac feed pathway that can be communicated with trapped fuel chamber.
Hydraulic pressure shell can be fixed on above-mentioned backup shell, being equipped in hydraulic case body can realize that the hydraulic pressure of liquid pressure rise drives
Dynamic component, the hydraulic case body of corresponding hydraulic-driven component inlet position is interior to be equipped with oil suction chamber, and corresponding hydraulic-driven component goes out liquid
Be equipped with oil outlet chamber in the hydraulic case body of mouthful position, hydraulic pressure shell be equipped with can be connected to the hydraulic pressure of oil outlet chamber and piston feed pathway into
Oily channel and the hydraulic pressure oil discharge passage that oil suction chamber and oil sac feed pathway can be connected to.
It can be installed with oil sac pressing plate, oil sac ontology, piston-cylinder component and piston pressure on the upside of above-mentioned backup shell
Plate covers fixed cover in the inner, and the fixed cover of corresponding piston gland position is equipped with sliding opening, is equipped with and opens in sliding opening
Mouth is downward and covers in the protection plate cover on the outside of piston gland, and the backup shell of corresponding piston gland circumferential position is recessed equipped with ring week
The lower end of slot, protection plate cover is located in ring week groove, and lower end is equipped on the inside of the upper end of the protection plate cover of corresponding each piston jacking block position
Seat is respectively and fixedly provided with outer plate in the lower protruding block on respective pistons jacking block at left and right sides of the lower end of protection plate cover, each outer plate it is upper
The side tops Jun Zuoyou are against the compressed spring of fixed cover inside.
The left and right side of above-mentioned fixed cover can be equipped with the keyway of outward opening, pass through biasing axis pin in each keyway
The retainingf key that there can be inner end to be exposed to outside fixed cover after rotation is installed.
Above-mentioned compressed spring can be bilayer combination spring.
The inside of the protection plate cover of above-mentioned corresponding oil sac press plate position can be fixed with seat in the briquetting on oil sac pressing plate.
The upper inner of above-mentioned actuating plunger can set arc groove, and the bottom of piston jacking block is equipped with matched with arc groove
Arc convex, arc convex seat is in spherical surface connected in star.
The upper inner of above-mentioned actuating plunger can set arc groove, and the bottom of piston jacking block is equipped with and spheric matching grooves
Spheric protrusion, spheric boss is in spherical surface connected in star.
Above-mentioned dust cover can be rubber system revolving body, and arc line shaped curved surface is equipped on rubber system revolving body.
Above-mentioned oil cylinder set middle part outside can be equipped with outer land, between the piston pressing plate and backup shell of corresponding outer land position
Equipped with limit card slot, outer shroud decometer enters in corresponding limit card slot.
The backup upper part of the housing of the above-mentioned each oil cylinder set lower end position of correspondence can be equipped with limiting slot, and oil cylinder set, which is located at, to be corresponded to
Limiting slot in, have between every two adjacent limit trench bottoms connection two limiting slots oil cylinder channel, piston feed pathway is extremely
It is few to be communicated with one of limiting slot, communication gap is formed between the bottom end and the bottom end of limiting slot of oil cylinder set, each start is lived
It is equipped with inner groovy in the middle part of the bottom surface of plug, is equipped on the backup shell of corresponding each actuating plunger lower position imitative with inner groovy
Shape and the upper protrusion in inner groovy.
The utility model reasonable and compact in structure can realize inside and outside stress balance by dust cover, thus can be used for well
Lower Operating Pressure can be improved the deflection precision of rotary steering drilling tool in backplate using double-piston collective effect, and can reduce
Failure rate extends the action time of entire instrument, also has easy to use, easy to process, the high feature of stability.
Description of the drawings
Attached drawing 1 is the main structure diagram of the best embodiment of the utility model.
Attached drawing 2 is schematic cross-sectional view of the attached drawing 1 at A-A.
Coding in attached drawing is respectively：1 is backup shell, and 2 be piston pressing plate, and 3 be oil cylinder set, and 4 be actuating plunger, and 5 are
Piston jacking block, 6 be dust cover, and 7 be piston storage chamber, and 8 be oil sac pressing plate, and 9 be oil sac ontology, and 10 be installation edge, and 11 be to deposit
Oil pocket, 12 be hydraulic pressure shell, and 13 be fixed cover, and 14 be protection plate cover, and 15 be lower protruding block, and 16 be outer plate, and 17 be compressed spring, 18
To bias axis pin, 19 be retainingf key, and 20 be briquetting, and 21 be arc convex, and 22 be arc line shaped curved surface, and 23 be outer land, and 24 be upper
Protrusion.
Specific implementation mode
The utility model is not limited by following embodiments, can technical solution according to the present utility model and actual conditions
Determine specific embodiment.
In the present invention, for ease of description, the description of the relative position relation of each component is according to specification
The Butut mode of attached drawing 2 is described, such as：The position relationship of front, rear, top, and bottom, left and right etc. is according to Figure of description
Butut direction determine.
The utility model is further described with reference to embodiment and attached drawing：
As shown in attached drawing 1,2, rotary steering drilling tool double-piston backup component backup shell 1,2 and of piston pressing plate
Piston-cylinder component, piston-cylinder component include oil cylinder set 3, actuating plunger 4, piston jacking block 5 and dust cover 6, on backup shell 1
Pistion recess equipped with opening upwards is installed with piston pressing plate 2 for 1 top of backup shell of pistion recess position, living
It fills in and forms piston storage chamber 7 between pressing plate 2 and backup shell 1, backup shell 1 is equipped with the work that can be communicated with piston storage chamber 7
Fill in feed pathway；Piston pressing plate 2 is equipped at least two piston mounting holes, and lower part is equipped in each piston mounting holes and is located at work
Fill in the oil cylinder set 3 in storage chamber 7, formed between the lower end and backup shell 1 of each oil cylinder set 3 can be connected to oil cylinder cover 3 endoporus with
The communication gap of piston storage chamber 7, each oil cylinder, which covers in 3, is equipped with actuating plunger 4, and the top of each actuating plunger 4 is equipped with
Piston jacking block 5, the piston jacking block 5 can move with corresponding actuating plunger 4 and generate angular deflection, and the upper end of oil cylinder set 3 is located at
The top of piston pressing plate 2 is equipped between piston jacking block 5 and corresponding oil cylinder set 3 and is located at 2 top of piston pressing plate and can live with start
4 movement of plug generates the dust cover 6 for stretching or compressing, and the upper outside of lower end inside and the oil cylinder set 3 of dust cover 6 is fixedly mounted on
Together, it is fixedly installed togather with the upper outside of piston jacking block 5 on the inside of the upper end of dust cover 6.According to demand, dust cover 6 is answered
For flexible capsule, and there is good ductility, leakproofness and high temperature resistant and high voltage performance；Actuating plunger 4 covers 3 with oil cylinder
Between be equipped with sealing ring.During use, at least one reality can be installed on conventionally known rotary steering drilling tool
With novel, and make to be equipped with conventionally known backplate, all work that each the utility model includes on the outside of each the utility model
The outer end of plug jacking block 5 is against on corresponding backplate, then will access existing fueller in each piston feed pathway, by
This can realize the control to corresponding actuating plunger 4 by fueller to piston feed pathway input hydraulic pressure oil, and then drive
Piston jacking block 5 acts on corresponding backplate, and pushes rotary steering drilling tool to generate angular deflection by interaction force,
When offset reaches it is default when, can stop to hydraulic channel pressurize, piston jacking block 5 will drive start to live under external force at this time
Fill in 4 homings；So that piston jacking block 5 is moved generation angular deflection with actuating plunger 4 can prevent actuating plunger 4 in moving process
Middle generation eccentric wear, extends its service life；The utility model reasonable and compact in structure, by dust cover 6 can realize it is inside and outside by
Thus dynamic balance can be used for underground Operating Pressure, rotary steering, which can be improved, in backplate using at least two piston collective effects bores
The deflection precision of well tool, and can reduce failure rate, extends the action time of entire instrument, also have it is easy to use, be easy to plus
Work, the high feature of stability.
Can according to actual needs, above-mentioned rotary steering drilling tool double-piston backup component is advanced optimized or/
And improvement：
As shown in attached drawing 1,2, backup shell 1 is equipped with the trapped fuel groove of opening upwards, and corresponding trapped fuel groove location pushes away
Oil sac pressing plate 8 is installed on shell 1, the middle part of oil sac pressing plate 8 is equipped with oil sac mounting hole, is equipped with and opens in oil sac mounting hole
The downward oil sac ontology 9 of mouth, 9 lower end outside of oil sac ontology are equipped with the installation side being pressed between oil sac pressing plate 8 and backup shell 1
Edge 10, forms trapped fuel chamber 11 between oil sac ontology 9 and backup shell 1, backup shell 1 is equipped with the oil that can be communicated with trapped fuel chamber 11
Capsule feed pathway.Thus can realize storage to hydraulic oil by oil sac ontology 9, so as to by existing hydraulic-driven component with
The utility model is combined the impetus realized to actuating plunger 4.According to demand, installation edge 10 is with oil sac ontology 9
It is wholely set；Sealing ring can be equipped with by installing between edge 10 and backup shell 1, and the sealing ring can be with 10 one of installation edge
Setting.
As shown in attached drawing 1,2, hydraulic pressure shell 12 is fixed on backup shell 1, liquid can be realized by being equipped in hydraulic pressure shell 12
The hydraulic-driven component of body boosting, the hydraulic pressure shell 12 of corresponding hydraulic-driven component inlet position is interior to be equipped with oil suction chamber, corresponds to
Be equipped with oil outlet chamber in the hydraulic pressure shell 12 of hydraulic-driven component liquid outlet position, hydraulic pressure shell 12 be equipped with can be connected to oil outlet chamber with
The hydraulic pressure oil inlet passage of piston feed pathway and the hydraulic pressure oil discharge passage that oil suction chamber and oil sac feed pathway can be connected to.Thus can lead to
It crosses the realization of hydraulic-driven component and boost operations is carried out to the hydraulic oil in oil sac ontology 9, and the hydraulic oil after boosting is defeated
Enter to piston feed pathway, to realize the driving to actuating plunger 4.According to demand, hydraulic-driven component can be used existing
There are known technology, such as the combination of hydraulic pump and the driving device that power can be provided for hydraulic pump；On backup shell 1 with hydraulic case
Body 12 is integrated setting or is fixed together by welding or is bolted and is fixedly installed togather.
As shown in attached drawing 1,2,1 upside of backup shell is installed with oil sac pressing plate 8, oil sac ontology 9, piston-cylinder group
Part and piston pressing plate 2 cover fixed cover 13 in the inner, and the fixed cover 13 of corresponding piston gland position is equipped with sliding opening, sliding
It removes and is equipped with that Open Side Down and covers in the protection plate cover 14 on the outside of piston gland, the backup shell of corresponding piston gland circumferential position in mouth
Body 1 is equipped with ring week groove, and the lower end of protection plate cover 14 is located in ring week groove, the protection plate cover of corresponding each 5 position of piston jacking block
It is solid at left and right sides of the lower protruding block 15 on respective pistons jacking block 5, the lower end of protection plate cover 14 that lower end seat is equipped on the inside of 14 upper end
There are outer plate 16, the equal seat in upside of each outer plate 16 to have the compressed spring 17 that top is against 13 inside of fixed cover surely.Thus may be used
By piston jacking block 5 push 14 compressed spring 17 of protection plate cover, when offset reaches it is default when, can stop to piston feed pathway
Input, the return action power of compressed spring 17 will promotion protection plate cover 14, piston jacking block 5,4 homing of actuating plunger at this time.
As shown in attached drawing 1,2, the left and right side of fixed cover 13 is equipped with the keyway of outward opening, leads in each keyway
It crosses biasing axis pin 18 and the retainingf key 19 that can have inner end to be exposed to outside fixed cover 13 after rotation is installed.According to demand, it is located at a left side
The biasing axis pin 18 of side is located at the left of 19 center line of retainingf key, and the biasing axis pin 18 for being located at right side is located at 19 center line of retainingf key
Right.Thus the utility model can be placed into after in connecting tube string convenient for user, and retainingf key 19 is made by rotation
Inner end be exposed to outside fixed cover 13, waited for realize that the utility model is opposite by the retainingf key 19 being exposed to outside fixed cover 13
The limit of connecting tube string.
As shown in attached drawing 1,2, compressed spring 17 is bilayer combination spring.Compressed spring 17 can be made to have enough elasticity in this way
Active force.
As shown in attached drawing 1,2, the inside of the protection plate cover 14 of corresponding 8 position of oil sac pressing plate is fixed with seat on oil sac pressing plate 8
Briquetting 20.Further position-limiting action can be played to oil sac ontology 9 in this way, prevent oil sac pressing plate 8 from loosening.
As shown in attached drawing 1,2, the upper inner of actuating plunger 4 sets arc groove, and the bottom of piston jacking block 5 is equipped with and arc
The arc convex 21 of matching grooves, arc convex 21 is in spherical surface connected in star.Thus it can be convenient for piston jacking block 5 that can live with start
Plug 4 moves up and down to form angular deflection.
As a preferred embodiment, the upper inner of actuating plunger 4 sets arc groove, the bottom of piston jacking block 5 is equipped with and spherical surface
The matched spheric protrusion of connected in star, spheric boss is in spherical surface connected in star.It thus can be with start convenient for piston jacking block 5
Piston 4 moves up and down to form angular deflection.
As shown in attached drawing 1,2, dust cover 6 is rubber system revolving body, and arc line shaped curved surface is equipped on rubber system revolving body
22.Thus pressure balance capsule can be enable to generate corresponding stretching and compression sideline with the movement of actuating plunger 4.According to demand, it presses
Dynamic balance capsule also can be used other materials with ductility, leakproofness and high temperature resistant and high voltage performance and be made.
As shown in attached drawing 1,2,3 middle part outside of oil cylinder set is equipped with outer land 23, the piston pressing plate 2 of corresponding outer 23 position of land
Limit card slot is equipped between backup shell 1, outer land 23 is caught in corresponding limit card slot.Thus it can pass through limit card slot reality
Support of the existing backup shell 1 to oil cylinder set 3, it is ensured that the lower end of each oil cylinder set 3 is connected to oil cylinder with formation between the energy of backup shell 1
Cover the communication gap of 3 endoporus and piston storage chamber 7.
As shown in Fig. 2,1 top of backup shell that corresponding each oil cylinder covers 3 lower end positions is equipped with limiting slot, oil cylinder set
3 be located at corresponding limiting slot in, have between every two adjacent limit trench bottoms be connected to two limiting slots oil cylinder channel, piston into
Liquid channel is at least communicated with one of limiting slot, forms communication gap between the bottom end and the bottom end of limiting slot of oil cylinder set 3, often
It is equipped with inner groovy in the middle part of the bottom surface of a actuating plunger 4, is equipped on the backup shell of corresponding each actuating plunger lower position
Upper raised 24 with inner groovy profiling and in inner groovy.Thus all limiting slots and oil cylinder channel can be made to become piston
A part for storage chamber can push actuating plunger and drive piston jacking block that can produce when to be filled with hydraulic oil in piston storage chamber
Raw outward thrust.
The above technical characteristic constitutes the most preferred embodiment of the utility model, with stronger adaptability and best implementation
Effect can increase and decrease non-essential technical characteristic, to meet the needs of different situations according to actual needs.
Claims (10)
1. a kind of rotary steering drilling tool double-piston backup component, it is characterised in that including backup shell, piston pressing plate and
Piston-cylinder component, piston-cylinder component include oil cylinder set, actuating plunger, piston jacking block and dust cover, and backup shell is equipped with
The pistion recess of opening upwards is installed with piston pressing plate, piston pressing plate for the backup upper part of the housing of pistion recess position
Piston storage chamber is formed between backup shell, backup shell is equipped with the piston feed pathway that can be communicated with piston storage chamber；
Piston pressing plate is equipped at least two piston mounting holes, and being equipped with lower part in each piston mounting holes is located in piston storage chamber
Oil cylinder set, being formed between the lower end and backup shell of each oil cylinder set can be connected between oily cylinder sleeve bore and the connection of piston storage chamber
Gap is equipped with actuating plunger in each oil cylinder set, piston jacking block, the piston jacking block energy is equipped at the top of each actuating plunger
It is moved with corresponding actuating plunger and generates angular deflection, the upper end of oil cylinder set is located at the top of piston pressing plate, piston jacking block and phase
It is equipped with above piston pressing plate between the oil cylinder set answered and the dust cover for generating and stretching or compressing can be moved with actuating plunger, prevented
The upper outside that the lower end inside of dust hood is covered with oil cylinder is fixedly installed togather, upper with piston jacking block on the inside of the upper end of dust cover
It is fixedly installed togather on the outside of portion.
2. rotary steering drilling tool according to claim 1 double-piston backup component, it is characterised in that backup shell
It is equipped with the trapped fuel groove of opening upwards, oil sac pressing plate, oil sac are installed on the backup shell of corresponding trapped fuel groove location
The middle part of pressing plate is equipped with oil sac mounting hole, and the oil sac ontology that Open Side Down, oil sac ontology lower end outside are equipped in oil sac mounting hole
Equipped with the installation edge being pressed between oil sac pressing plate and backup shell, trapped fuel chamber is formed between oil sac ontology and backup shell,
Backup shell is equipped with the oil sac feed pathway that can be communicated with trapped fuel chamber.
3. rotary steering drilling tool according to claim 2 double-piston backup component, it is characterised in that backup shell
On be fixed with hydraulic pressure shell, the hydraulic-driven component that can realize liquid pressure rise is installed, corresponding hydraulic-driven group in hydraulic case body
It is equipped with oil suction chamber in the hydraulic case body of part inlet position, is equipped in the hydraulic case body of corresponding hydraulic-driven component liquid outlet position
Oil outlet chamber, hydraulic pressure shell be equipped with can be connected to oil outlet chamber and the hydraulic pressure oil inlet passage of piston feed pathway and can be connected to oil suction chamber and
The hydraulic pressure oil discharge passage of oil sac feed pathway.
4. rotary steering drilling tool according to claim 3 double-piston backup component, it is characterised in that backup shell
Upside, which is installed with, covers the fixation that oil sac pressing plate, oil sac ontology, piston-cylinder component and piston pressing plate cover in the inner, right
It answers the fixed cover of piston gland position to be equipped with and slides opening, equipped with Open Side Down and covers on the outside of piston gland in sliding opening
Protection plate cover, the backup shell of corresponding piston gland circumferential position is equipped with ring week groove, and it is recessed that the lower end of protection plate cover is located at ring week
It is convex under on respective pistons jacking block it to be equipped with lower end seat in slot, on the inside of the upper end of the protection plate cover of corresponding each piston jacking block position
The lower end left and right sides of block, protection plate cover is respectively and fixedly provided with outer plate, and the equal seat in upside of each outer plate has top to be against in fixed cover
The compressed spring of side.
5. rotary steering drilling tool according to claim 4 double-piston backup component, it is characterised in that fixed cover
Left and right side is equipped with the keyway of outward opening, can have inner end after rotation by biasing axis pin and being equipped in each keyway
The retainingf key being exposed to outside fixed cover；Or/and compressed spring is bilayer combination spring；Or/and corresponding oil sac press plate position
Seat is fixed on the inside of protection plate cover in the briquetting on oil sac pressing plate.
6. the rotary steering drilling tool double-piston backup component according to claims 1 or 2 or 3 or 4 or 5, feature
Be that the upper inner of actuating plunger sets arc groove, the bottom of piston jacking block be equipped with the matched arc convex of arc groove,
Arc convex seat is in spherical surface connected in star；Or, the upper inner of actuating plunger sets arc groove, the bottom of piston jacking block be equipped with
The spheric protrusion of spheric matching grooves, spheric boss is in spherical surface connected in star.
7. the rotary steering drilling tool double-piston backup component according to claims 1 or 2 or 3 or 4 or 5, feature
It is that dust cover is rubber system revolving body, and is equipped with arc line shaped curved surface on rubber system revolving body.
8. rotary steering drilling tool according to claim 6 double-piston backup component, it is characterised in that dust cover is
Rubber system revolving body, and arc line shaped curved surface is equipped on rubber system revolving body.
9. the rotary steering drilling tool double-piston backup component according to claims 1 or 2 or 3 or 4 or 5 or 8, special
Sign is that oil cylinder set middle part outside is equipped with outer land, and limit is equipped between the piston pressing plate and backup shell of corresponding outer land position
Card slot, outer shroud decometer enter in corresponding limit card slot；
Or, the backup upper part of the housing of corresponding each oil cylinder set lower end position is equipped with limiting slot, oil cylinder set is located at corresponding limit
In slot, have between every two adjacent limit trench bottoms connection two limiting slots oil cylinder channel, piston feed pathway at least with its
In a limiting slot communicate, oil cylinder set bottom end and the bottom end of limiting slot between form communication gap, the bottom of each actuating plunger
Middle face is equipped with inner groovy, is equipped with and inner groovy profiling and position on the backup shell of corresponding each actuating plunger lower position
In the upper protrusion in inner groovy.
10. rotary steering drilling tool according to claim 6 double-piston backup component, it is characterised in that in oil cylinder set
It is equipped with outer land on the outside of portion, limit card slot, outer shroud decometer are equipped between the piston pressing plate and backup shell of corresponding outer land position
Enter in corresponding limit card slot；
Or, the backup upper part of the housing of corresponding each oil cylinder set lower end position is equipped with limiting slot, oil cylinder set is located at corresponding limit
In slot, have between every two adjacent limit trench bottoms connection two limiting slots oil cylinder channel, piston feed pathway at least with its
In a limiting slot communicate, oil cylinder set bottom end and the bottom end of limiting slot between form communication gap, the bottom of each actuating plunger
Middle face is equipped with inner groovy, is equipped with and inner groovy profiling and position on the backup shell of corresponding each actuating plunger lower position
In the upper protrusion in inner groovy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820006654.9U CN208040824U (en) | 2018-01-03 | 2018-01-03 | Rotary steering drilling tool double-piston backup component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820006654.9U CN208040824U (en) | 2018-01-03 | 2018-01-03 | Rotary steering drilling tool double-piston backup component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208040824U true CN208040824U (en) | 2018-11-02 |
Family
ID=63956261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820006654.9U Withdrawn - After Issue CN208040824U (en) | 2018-01-03 | 2018-01-03 | Rotary steering drilling tool double-piston backup component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208040824U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150481A (en) * | 2018-01-03 | 2018-06-12 | 中国石油集团西部钻探工程有限公司 | Rotary steering drilling tool double-piston backup component |
-
2018
- 2018-01-03 CN CN201820006654.9U patent/CN208040824U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150481A (en) * | 2018-01-03 | 2018-06-12 | 中国石油集团西部钻探工程有限公司 | Rotary steering drilling tool double-piston backup component |
| CN108150481B (en) * | 2018-01-03 | 2024-04-26 | 中国石油天然气集团有限公司 | Double-piston pushing-leaning assembly for rotary steering drilling tool |
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Effective date of registration: 20201104 Address after: 100120 Beijing Xicheng District six laying Kang Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Xibu Drilling Engineering Co.,Ltd. Address before: 830026 science and technology management division, West drilling and Drilling Engineering Institute, No. 326 South Central Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region, China Patentee before: CNPC Xibu Drilling Engineering Co.,Ltd. |
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Granted publication date: 20181102 Effective date of abandoning: 20240426 |
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