CN104790884B - A kind of small column groups of springs normally closed type strip slips chuck - Google Patents
A kind of small column groups of springs normally closed type strip slips chuck Download PDFInfo
- Publication number
- CN104790884B CN104790884B CN201510076460.7A CN201510076460A CN104790884B CN 104790884 B CN104790884 B CN 104790884B CN 201510076460 A CN201510076460 A CN 201510076460A CN 104790884 B CN104790884 B CN 104790884B
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- China
- Prior art keywords
- slips
- group
- chuck
- spring
- oil cylinder
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- Expired - Fee Related
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- 241000239290 Araneae Species 0.000 claims abstract description 35
- 239000000428 dust Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000005553 drilling Methods 0.000 claims abstract description 9
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 9
- 210000003850 cellular structure Anatomy 0.000 claims abstract description 6
- 239000003921 oil Substances 0.000 claims description 41
- 210000004907 gland Anatomy 0.000 claims description 20
- 239000007787 solid Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/10—Slips; Spiders ; Catching devices
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to a kind of small column groups of springs normally closed type strip slips chuck, including fixed cell component, slips rotary unit component, rotation separative element component and drilling rod water dust are hindered from unit block admittedly, the slips rotary unit component includes slips group, slip spider and spring base, outer shroud cluster spring group and inner ring group are evenly distributed in slip spider or spring base is matched therewith in each cylindrical hole for the ring to be formed, there is provided the original grip power of slips group.The invention belongs to a kind of small physical dimension, big ability, the oild chuck of fast open form, solves oild chuck at work, hydraulic system needs the hydraulic oil of continuous supply elevated pressures, or because flexible member characteristic can not meet the requirement of big ability chuck, and when changing slips, the problem of installation operation inconvenience.
Description
Technical field
The present invention relates to a kind of mechanical clamping device, especially a kind of small column groups of springs normally closed type strip slips chuck.
Background technology
Chuck is the important building block of mechanical clamping device, and installed in the end of power set, its main function is folder
Pipe fitting is held, torque and axial force is transmitted to drilling tool, completes the transmission of energy.
At present, common oild chuck mainly has oild chuck and constant-closed type hydraulic chuck open in usual, wherein hydraulic pressure open in usual
Chuck is mainly rubber chuck, and normally closed type chuck is mainly disk spring type chuck.When rubber oild chuck works, utilize
Hydraulic clamp, spring unclamp, therefore, high to the pressure requirements of hydraulic system, match somebody with somebody oil jacket in oil supply system, because between use
Gap seals, and has certain leakage, influences the performance of chuck.Disk spring type chuck mainly has cylinder block, piston, dish-shaped bullet
Spring, slip spider, slips, hollow shaft composition, are clamped during work, hydraulic unlock, chuck performance depends on dish-shaped bullet by spring force
Spring performance.
Because disk spring self-characteristic influences, disk spring type chuck has the following disadvantages：First, chucking power is by dish-shaped bullet
Spring deformation effect is big, and chucking power loss is big after slips abrasion.2nd, when slips is arranged on medium position or the end of hollow shaft, profit
With the principle of inclined plane force increasing, its axial dimension installed influences very big on chucking power.3rd, chuck is made to have big chucking power, just
Large-sized disk spring must be used, causes that chuck appearance and size is big, and rotary inertia is big.4th, thrust ball bearing is in chuck work
When making, because of powerless effect, it sinks into released state, ball in the effect of gravity, when be stressed again effect when, ball is short
When derail, there is force unbalance, make its reduced lifetime.5th, in the middle part of slips insertion hollow shaft, slips is changed very inconvenient.
The content of the invention
The invention solves the shortcomings that above-mentioned prior art, there is provided a kind of small column groups of springs normally closed type strip slips card
Disk, a kind of small physical dimension, big ability, the oild chuck of fast open form are fallen within, solves oild chuck at work, hydraulic pressure system
System needs the hydraulic oil of continuous supply elevated pressures, or because flexible member characteristic can not meet the requirement of big ability chuck,
And when changing slips, the problem of installation operation inconvenience.
The present invention solves the technical scheme that its technical problem uses：This small column groups of springs normally closed type strip slips card
Disk, including fixed cell component, slips rotary unit component, revolve separative element component and drilling rod water dust admittedly and hinder from unit block,
The slips rotary unit component includes slips group, slip spider and spring base, and outer shroud cluster spring group and inner ring group are uniform
Be distributed in slip spider or spring base is matched therewith in each cylindrical hole for the ring to be formed, there is provided the original folder of slips group
Holding force.
Preferably, the outer shroud cluster spring group includes a big spring and an oppositely oriented little spring or one
In the hole of spring base, the end face that the other end withstands on slip spider is stopped for end cap housing screw group, its big spring and little spring one end
On mouth, inner ring group includes a spring and a slips unclamps screw group, and its spring one end is in the hole of slip spider, separately
One end is withstood on the end face of torsion pass hollow pin.
Preferably, the slip spider is provided with 5~9 T-shaped surface grooves in circumferencial direction, each T-shaped surface groove built with
Strip slips and wear-resistant block, it is centripetal to be arranged in slips group.
Preferably, the both ends of the slips group are provided with slips rear ends wearing plate, outside is provided with slips group gland, card
Watt group gland is fixed on spring base by end cap housing screw group.
Preferably, 0.15-0.2mm gap is provided between slips group and slips rear ends wearing plate.
Preferably, the drilling rod water dust hinders includes water-ring and preceding gland from unit block, preceding gland is fixed on slips
On group gland, water-ring is located between preceding gland and slips group gland.
Preferably, spring base is fixed on main shaft, spring base is connected by torsion pass hollow pin with torsion pass plate, torsion pass plate and master
Axle passes through torsion pass pin connection.
Preferably, the fixed cell component includes bearing cap, chuck oil cylinder body and oil cylinder piston, admittedly revolve separative element
Component includes thrust bearing and lock pad and round nut, and slips unclamps screw group and is connected to through slip spider in sliding mandrel, sliding
Mandrel is moved in oil cylinder piston, oil cylinder piston is sheathed in chuck oil cylinder body, is provided between oil cylinder piston and sliding mandrel
Thrust bearing, lock pad and round nut are fixed with sliding mandrel.
Preferably, the chuck oil cylinder body is provided with external hydraulic oil joint, oil cylinder piston and chuck oil cylinder body it
Between be provided with dust ring.
Invention has the advantages that：First, the present invention can provide very well using small column groups of springs as chuck elastic element
Resiliency characteristics curve, elastic force covariant shape varied less, and chuck chucking power is big, stable performance, and hydraulic pressure member is replaced with mechanical part
Part, oil leak is avoided, reduce the requirement to hydraulic system.2nd, small column groups of springs own profile size is small, installed in slip spider with
Spring base is engaged to be formed in cylindrical hole, reduces chuck appearance and size, and rotary inertia is small.3rd, slips and wear-resistant block insertion slips
In seat, drive slip assemblies to move radially in inclined plane groove, can effectively transmit motion, and oblique mechanism can play the work of reinforcement
With.4th, torsion pass groove is designed with slip spider, slips group is stuck between torsion pass groove, transmits torque, and end need to be only taken apart when changing slips
Lid, so that it may slips is changed, it is convenient and swift.5th, water dust hinders is arranged on chuck body end from compressible rubber, effectively prevents water
Debris enters chuck, extends its service life.6th, the service life of hydraulic unit is extended, clamping is reliable, dismounting drilling tool when side
Just, fast, work on the spot efficiency is improved.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Description of reference numerals：Main shaft 1, bearing cap 2, lock pad and round nut 3, oil cylinder piston 4, thrust bearing 5, chuck oil
Cylinder body 6, slide mandrel 7, outer shroud cluster spring group 8, torsion pass pin 9, torsion pass plate 10, torsion pass hollow pin 11, inner ring group 12, slips
Unclamp screw group 13, spring base 14, slip spider 15, end cap housing screw group 16, slips group 17, slips rear ends wearing plate
18, slips group gland 19, water-ring 20, preceding gland 21.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings：
Small column groups of springs normally closed type strip slips chuck, by fixed cell component, slips rotary unit component, solid rotation point
Hinder from unit block and drilling rod water dust and formed from the part of unit block four.The principle of inclined plane force increasing is employed, amplifies of spring
Power.
Fixed cell includes positioning bearing cap 2, chuck oil cylinder body 6, oil cylinder piston 4 and cylinder seal part, is typically mounted at
The end of body, the big ring-type hydraulic jack formed, slips is unclamped, adjusts the design parameter of big ring-type hydraulic jack, can be square
Just itself and hydraulic system parameters matching problem are solved, effectively realizes the function linkage of execution unit.
Slips rotary unit includes main shaft 1, sliding mandrel 7, outer shroud cluster spring group 8, torsion pass pin 9, torsion pass plate 10, torsion pass
Hollow pin 11, inner ring group 12, slips unclamp screw group 13, spring base 14, slip spider 15, end cap housing screw group 16, slips
Group 17, slips rear ends wearing plate 18, slips group gland 19.Outer shroud cluster spring group 8 and inner ring group 12 provide jointly,
Form original grip power.Slip spider 15 is in circumferencial direction, provided with five to nine T-shape surface grooves not waited, each T-shape inclined-plane
Groove is centripetal to be arranged in slips group built with strip slips and wear-resistant block, clamps rod member, passing power, and fractional value is used for heavy wall
Pipe fitting, big numerical value are used for book wall pipe fitting.
Admittedly rotation separative element includes thrust bearing 5, lock pad and round nut 3, the static state and slips group of chuck body are separated
Dynamically.
Drilling rod water dust hinders includes water-ring 20, preceding gland 21 from unit, with compressible rubber, prevents fluid from entering card
Inside disk, the movement of slips is influenceed.
As shown in figure 1, the spring one end of outer shroud cluster spring group 8, in the hole of spring base 14, one end withstands on slip spider
On 15 end face seam, a big spring is housed in every hole, has again and an oppositely oriented little spring is refilled in the hole of half quantity,
The hole of second half quantity then fills end cap housing screw group 16；The spring one end of inner ring group 12 is mounted in the hole of slip spider 15,
One end is withstood on the end face of torsion pass hollow pin 11, that is to say, that is had the spring of three kinds of different models while is arranged on slip spider or bullet
, will shape after assembling because the parameter of three springs is different in each cylindrical hole of the distribution that spring abutment is matched therewith circumferentially
Cheng Xin resiliency characteristics curve, this performance parameter of new features curve more with chuck are coincide.This structural shape is laid out spring
Space is sufficiently used, substantially reduces the appearance and size of chuck, can effectively reduce rotary inertia, that is, impact is used to
Property, it is suitable for revolution gyration.
The slips of slips group 17 is equipped with wear-resistant block again, forms T-shaped, is reloaded into the inclined-plane T grooves of slip spider 15, inclined-plane T grooves
Drive slip assemblies to move radially, transmit motion, inclined-plane has boosting function, the installation axial direction dimensional tolerance of this namely slips
To the far-reaching reason of chucking power.The both ends of slips group 17 are withstood on slips rear ends wearing plate 18, then with utilizing end cap
The screw of housing screw group 16 kills slips group gland 19 on spring base 14, while should ensure that slips can move radially, and one
As 0.15-0.2mm gap should be left between situation slips group and slips rear ends wearing plate.Thus see, the part structure
The mandrel virtual into one section, just because of this, the inclined plane force increasing of the chuck are not influenceed by the axial dimensional tolerance of installation of slips.And
The transmission of moment of torsion is completed by torsion pass pin 9, torsion pass plate 10, torsion pass hollow pin 11, slip spider 15 and slips group 17.
The chuck need to only pull down the screw of end cap housing screw group 16, remove slips group gland 19, just when changing slips
Easily slips group 17 can be taken out from slip spider 15, reach the purpose of convenient and swift replacing slips.
Slips unclamps screw group 13 and is connected to through slip spider 15, torsion pass hollow pin 11, spring base 14 in sliding mandrel 7, i.e.,
Slips unclamps screw one end connection sliding mandrel 7 of screw group 13, and one end is pressed on slip spider 15, and centre has passed through torsion pass hollow pin
11, spring base 14 is have passed through, sliding mandrel 7, both slip spiders 15 are connected as a single entity.Simultaneously also by the He of outer shroud cluster spring group 8
Inner ring group 12 is compressed, and the impetus of spring is respectively acting on spring base 14 and slip spider 15 and the He of slip spider 15
On torsion pass hollow pin 11.
With being threaded onto on main shaft 1, torsion pass plate 10 is connected spring base 14 with main shaft 1 with torsion pass pin 9, is also used with spring base 14
Torsion pass hollow pin 11 is connected, and such main shaft 1 is just integrally formed with spring base 14, you can transmits moment of torsion, can bear pulling force, or bullet again
Spring force puts forth effort body.
Mandrel 7 is slid in oil cylinder piston 4, oil cylinder piston 4 is sleeved in chuck oil cylinder body 6 again, in the He of oil cylinder piston 4
Thrust bearing 5 is housed between sliding mandrel 7, is screwed with lock pad and round nut 3 in sliding mandrel 7, nut is tightened, with lock
Tightly pad locking so that oil cylinder piston 4 and rotatable sliding mandrel 7 all form under any operating mode and never depart from body, this to set
Meter overcome existing constant-closed type hydraulic chuck can not comprehensive application the defects of.Chuck oil cylinder body 6 is provided with external hydraulic oil joint,
Between oil cylinder piston 4 and chuck oil cylinder body 6, dust ring is installed, can effectively prevent debris from entering chuck oil cylinder body 6.
Its operation principle：In use：Clamped condition (normally closed type) is in when chuck does not work, spring has certain precompressed
Contracting amount.During work, hydraulic oil is entered in chuck oil cylinder body 6 by hydraulic oil joint, promotes oil cylinder piston 4 to move right vertically,
Oil cylinder piston 4 promotes thrust ball bearing 5 and lock pad and round nut 3, sliding mandrel 7, slips to unclamp screw group 13, slip spider 15
This entirety moves right, and slip spider 15 compresses all groups of springs, and the slips of slips group 17 is along the inclined-plane T in slip spider 15
Groove is moved radially outward, and chuck amount of opening increase, chuck unclamps；After the body of rod enters chuck, hydraulic system decompression, hydraulic oil returns
Oil, groups of springs elongation, promotes slip spider 15 to move axially to the left, and slip spider 15 drives slips to unclamp screw group 13, the sliding heart
Axle 7, oil cylinder piston 4, thrust ball bearing 5 and lock pad and round nut 3, this entirety are moved to the left, and slips group 17 is along card
Inclined-plane T grooves in watt seat 15, are moved radially inwardly, and chuck amount of opening reduces, and chuck clamps.Chuck rotate when, except bearing cap 2,
Cylinder block 1, oil cylinder piston 4, chuck oil cylinder body 6 and hydraulic oil joint do not rotate outer, remaining equal rotating part.
In addition to the implementation, the present invention can also have other embodiment.It is all to use equivalent substitution or equivalent transformation shape
Into technical scheme, all fall within the protection domains of application claims.
Claims (8)
1. a kind of small column groups of springs normally closed type strip slips chuck, including it is fixed cell component, slips rotary unit component, solid
Rotation separative element component and drilling rod water dust are hindered from unit block, it is characterized in that：The slips rotary unit component includes slips group
(17), slip spider (15) and spring base (14), outer shroud cluster spring group (8) and inner ring group (12) are evenly distributed in card
Watt seat (15) or spring base (14) are matched therewith in each cylindrical hole for the annular to be formed, there is provided slips group (17) it is original
Chucking power, the outer shroud cluster spring group (8) include a big spring and an oppositely oriented little spring or an end cap pressure
In the hole of spring base (14), the other end withstands on slip spider (15) for tight screw group (16), its big spring and little spring one end
On the seam of end face, inner ring group (12) includes a spring and a slips unclamps screw group (13), and its spring one end is located at
In the hole of slip spider (15), the other end is withstood on the end face of torsion pass hollow pin (11).
2. small column groups of springs normally closed type strip slips chuck according to claim 1, it is characterized in that：The slip spider
(15) 5~9 T-shaped surface grooves are provided with circumferencial direction, each T-shaped surface groove is built with strip slips and wear-resistant block, centripetal row
Arrange into slips group (17).
3. small column groups of springs normally closed type strip slips chuck according to claim 1, it is characterized in that：The slips group
(17) both ends are provided with slips rear ends wearing plate (18), and outside is provided with slips group gland (19), and slips group gland (19) is logical
End cap housing screw group (16) is crossed to be fixed on spring base (14).
4. small column groups of springs normally closed type strip slips chuck according to claim 3, it is characterized in that：Slips group (17) with
0.15-0.2mm gap is provided between slips rear ends wearing plate (18).
5. small column groups of springs normally closed type strip slips chuck according to claim 3, it is characterized in that：The drilling rod water dust
Hinder includes water-ring (20) and preceding gland (21) from unit block, and preceding gland (21) is fixed on slips group gland (19), blocked water
Ring (20) is located between preceding gland (21) and slips group gland (19).
6. small column groups of springs normally closed type strip slips chuck according to claim 1, it is characterized in that：Spring base (14) is solid
Due on main shaft (1), spring base (14) is connected by torsion pass hollow pin (11) with torsion pass plate (10), torsion pass plate (10) and main shaft (1)
Connected by torsion pass pin (9).
7. small column groups of springs normally closed type strip slips chuck according to claim 1, it is characterized in that：The fixed cell
Component includes bearing cap (2), chuck oil cylinder body (6) and oil cylinder piston (4), admittedly rotation separative element component includes thrust bearing (5)
With lock pad and round nut (3), slips unclamps screw group (13) and is connected to through slip spider (15) in sliding mandrel (7), sliding
In oil cylinder piston (4), oil cylinder piston (4) is sheathed in chuck oil cylinder body (6) mandrel (7), in oil cylinder piston (4) and sliding
Thrust bearing (5) is provided between mandrel (7), lock pad and round nut (3) are fixed with sliding mandrel (7).
8. small column groups of springs normally closed type strip slips chuck according to claim 7, it is characterized in that：The chuck oil cylinder
Body (6) is provided with external hydraulic oil joint, and dust ring is provided between oil cylinder piston (4) and chuck oil cylinder body (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510076460.7A CN104790884B (en) | 2015-02-13 | 2015-02-13 | A kind of small column groups of springs normally closed type strip slips chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510076460.7A CN104790884B (en) | 2015-02-13 | 2015-02-13 | A kind of small column groups of springs normally closed type strip slips chuck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104790884A CN104790884A (en) | 2015-07-22 |
| CN104790884B true CN104790884B (en) | 2018-02-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510076460.7A Expired - Fee Related CN104790884B (en) | 2015-02-13 | 2015-02-13 | A kind of small column groups of springs normally closed type strip slips chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104790884B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915618A (en) * | 2018-08-10 | 2018-11-30 | 河北华北石油荣盛机械制造有限公司 | A kind of sleeve type hydraulic rotating slips |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200952364Y (en) * | 2006-09-29 | 2007-09-26 | 重庆科技学院 | Whole hydraulic spider for gas drainage drilling machine |
| CN201196038Y (en) * | 2007-11-29 | 2009-02-18 | 中国地质装备总公司 | Cylinder helical spring type hydraulic chuck |
| CN201241638Y (en) * | 2008-08-20 | 2009-05-20 | 石家庄中煤装备制造有限公司 | Constant-closed type hydraulic chuck |
| CN102434116A (en) * | 2012-01-17 | 2012-05-02 | 江苏省无锡探矿机械总厂有限公司 | Nitrogen spring type hydraulic chuck |
| CN203891800U (en) * | 2014-05-23 | 2014-10-22 | 浙江杭钻机械制造股份有限公司 | Normally-closed hydraulic chuck with quick-change slip |
| CN204552642U (en) * | 2015-02-13 | 2015-08-12 | 杭州祥龙钻探设备科技股份有限公司 | Small column groups of springs normally closed type strip slips chuck |
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2015
- 2015-02-13 CN CN201510076460.7A patent/CN104790884B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN104790884A (en) | 2015-07-22 |
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Granted publication date: 20180227 |