CN101054896B - Eight-arm mechanical pusher - Google Patents
Eight-arm mechanical pusher Download PDFInfo
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- CN101054896B CN101054896B CN200710099790A CN200710099790A CN101054896B CN 101054896 B CN101054896 B CN 101054896B CN 200710099790 A CN200710099790 A CN 200710099790A CN 200710099790 A CN200710099790 A CN 200710099790A CN 101054896 B CN101054896 B CN 101054896B
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Abstract
The invention discloses a mechanical eccentering arm with eight arms including a motor, a clutch, a roller threaded spindle, drive parts and an eccentering arm; the motor is connected to the roller threaded spindle by the clutch and is transferred to the drive parts by the roller threaded spindle after the circumference direction rotating displacement changes to the axial direction moving displacement, an elasticity thrust mechanism is arranged on the drive parts, the eccentering arm stretches out or folds up under the action of the elasticity thrust mechanism. The invention has advantages of simple and reasonable structure, convenient maintenance and high reliability and so on.
Description
Technical field
The present invention relates to a kind of pushing device that on oil well logging instrument, uses.
Background technology
Telescoping ram is the important component part of oil well logging inclination angle instrument, and when the dipmeter logging instrument was mobile in well, telescoping ram made the battery lead plate on each arm be close to the borehole wall with enough pressure, and makes relative two electrodes and instrument shaft keep a fixing distance.Write down the electrical conductivity curve of next bar microfocus respectively with each electrode, thereby extrapolate real stratigraphic dip and tendency.
At present, normally used dipmeter logging instrument comprises the dipmeter logging instrument of four arms or six arms in oil well logging, and the composition of their telescoping ram part is the same.Because the extension and the contraction of pole plate are to realize by a whole set of hydraulic system (comprising hydraulic motor, hydraulic pump, electromagnetic valve etc.), therefore there is following defective inevitably: 1) hydraulic system complexity, manufacturing cost is high and difficult in maintenance; 2) be subjected to the restriction of quantity of polar plate for the electrical conductivity curve, measurement category is little; 3) the hole diameter sampled signal is less relatively, has influenced the precision of caliper logging.
Patent 99210724.5 discloses a kind of oil logging tool eight arm telescoping rams, is made up of motor, reducer, main thrust main assemblage of spring, rotating threaded shaft, propelling piston, little propelling piston, master link, major joint and uniform eight cover quadric chains etc.When backup arm opens,, move down thereby drive the main thrust main assemblage of spring by motor and the rotation of reducer driven rotary leading screw.Because propelling piston is connected with the main thrust main assemblage of spring, make hydraulic oil in the propelling piston compression cylinder, the pressure of the hydraulic oil of oil cylinder inside will increase, thereby eight little propelling pistons and master link are produced thrust, eight master links are moved down, finally make the backup principal arm etc. of pushing device open.
Above-mentioned patented technology has lot of advantages such as suitable working range is big, but because the transmission of its mechanism is to adopt the piston in the driven by motor hydraulic jack to realize, complex structure not only, and also stability is very poor.
Summary of the invention
The eight-arm mechanical pusher that provides a kind of stability higher is provided technical problem to be solved by this invention.
A kind of eight-arm mechanical pusher of the present invention comprises: motor, clutch, roller screw, drive disk assembly, backup arm; Motor links to each other with roller screw by clutch, and change into and pass to drive disk assembly after moving axially displacement by the roller screw displacement that will rotate in a circumferential direction, described drive disk assembly is provided with elastic thrust mechanism, and described backup arm opens under the effect of this elastic thrust mechanism or draws in; Be used for the auxiliary righting mechanism of setting upright also being equipped with by a backup matrix near an end of described backup arm, this righting mechanism is driven by described drive disk assembly.
Further, described elastic thrust mechanism comprises backup spring and distance rod, and an end of backup spring is pressed against on the described drive disk assembly, and the other end is connected with described backup arm elasticity by distance rod.
Further, described righting mechanism comprises: righting arm, set upright elastic thrust mechanism, set upright elastic thrust mechanism and be arranged on the described drive disk assembly, described righting arm opens under this sets upright the effect of elastic thrust mechanism or draws in.
Further, the described elastic thrust mechanism that sets upright comprises: set upright spring, sliding shoe and centralizer leaf spring, one end of centralizer leaf spring is pressed against on the described drive disk assembly, its other end links to each other with an end elasticity of setting upright spring by sliding shoe, the other end of setting upright spring is pressed against on the described backup matrix, and described sliding shoe is hinged with described righting arm and is connected.
The present invention is by being provided with elastic thrust mechanism, compare with traditional fluid pressure type structure, because this elastic thrust mechanism is a mechanical structure, therefore the reliability and stability of instrument have not only been improved greatly, each arm can independent operating, not influenced by other, and simple in structure, easier regular maintenance.Righting mechanism is set in addition, makes instrument easier to be placed in the middle in inclined shaft, thereby can make instrument more stable, more accurate.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the local enlarged diagram of A portion among Fig. 1.
Fig. 3 is the local enlarged diagram of B portion among Fig. 1.
The specific embodiment
As shown in Figure 1, 2, the present invention includes: 8 backup arms 6 (in Fig. 1, only illustrating 1) that motor 1, clutch 2, roller screw 3, drive disk assembly 4, edge circumferentially are provided with; Motor 1 links to each other with roller screw 3 by clutch 2, and change into and pass to drive disk assembly 4 after moving axially displacement by roller screw 3 displacement that will rotate in a circumferential direction, corresponding 8 backup arms 6 are provided with 8 elastic thrust mechanisms 5 (only illustrating 1 in Fig. 1) on drive disk assembly 4, and 8 backup arms 6 open under the effect of this elastic thrust mechanism respectively or draw in.
Above-mentioned elastic thrust mechanism 5 comprises backup spring 51 and distance rod 52, and an end of backup spring 51 is pressed against on the drive disk assembly 4, and the other end is connected with backup arm 6 elasticity by distance rod 52.When opening, drive ball-screw 3 rotations by motor 1 and clutch 2, move horizontally thereby drive drive disk assembly 4.Because backup spring 51 and drive disk assembly 4 link together, by 8 backup springs 51, make 8 thrust arms 6 produce certain thrust and open, open thereby drive 8 backup arms 6.Do not run into any resistance if be arranged on backup pole plate on the backup arm 6 (not shown go out), backup arm 6 will all open up into maximum gauge; If certain backup arm 6 meets obstructions, then do not influence opening of other arm, each backup arm 6 can independently open.When drawing in, provide reversing the current by giving motor 1, make to drive motor 1 counter-rotating drive disk assembly 4 and oppositely move, backup arm 6 is drawn in.Because elastic thrust mechanism 5 adopts complete mechanical formula structure, compares with traditional fluid pressure type structure, has improved the reliability and stability of instrument greatly, and easier regular maintenance.
As shown in Figure 1, the present invention also is provided with on the backup matrix 7 of an end of close backup arm 6 and is used for the auxiliary righting mechanism of setting upright 8, and this righting mechanism 8 is driven by drive disk assembly 4.As shown in Figure 3, righting mechanism 8 comprises: righting arm 82, set upright elastic thrust mechanism 81, set upright elastic thrust mechanism 81 and be enclosed within on the drive disk assembly 4, righting arm 82 opens under this sets upright the effect of elastic thrust mechanism 81 or draws in.Specifically be, setting upright elastic thrust mechanism 81 comprises: set upright spring 811, sliding shoe 812 and centralizer leaf spring 813, centralizer leaf spring 813 1 ends are pressed against on the sliding shoe 812, the other end is pressed against on the drive disk assembly 4, an end of setting upright spring 811 is pressed against on the backup matrix 7 at telescoping ram rear portion, the other end by sliding shoe 812 with set upright leaf spring 813 elasticity and be connected, sliding shoe 812 is hinged with righting arm 82 and is connected.In addition, righting arm 82 can only show one group along circumferentially being provided with more than 3 groups in Fig. 1.
When opening, the driving force of drive disk assembly 4 is to front transfer, and centralizer leaf spring 813 moves forward, like this sliding shoe 812 under the resilient force of setting upright spring 811 to front slide.Along with the slip of sliding shoe 812, make righting arm 82 open.When drawing in, by reversing the current being provided for motor 1, make to drive motor 1 counter-rotating drive disk assembly 4 and oppositely move, centralizer leaf spring 813 makes sliding shoe 812 oppositely move under the drive of drive disk assembly 4, compresses the electronic spring 811 of setting upright righting arm 82 is drawn in.Righting arm 82 open angular dimensions can be controlled, such as, can control by limit switch (not shown go out) is set, when backup arm 6 opened up into maximum, motor 1 stopped operating.Will guarantee during design that the size of setting upright backup power of righting arm 82 equals the weight of instrument, reaching the purpose of setting upright, this can realize by the elasticity size that spring 811 is set upright in control.
By design righting mechanism 8, can make instrument more stable, more accurate.
As shown in Figure 1, the present invention also is equipped with balanced compensated mechanism 9, and this balanced compensated mechanism 9 comprises dummy piston 92 and piston spring 91.Dummy piston 92 is outside owing to be subjected to the effect of mud, promotes dummy piston 92 and moves to inside, until internal and external pressure balance; When the hydraulic oil of instrument internal can expand when being subjected to the influencing of down-hole hot conditions, make instrument internal pressure increase, promote dummy piston 92 and move, until pressure balance to the outside.It is the same to keep all position pressure in the inside of instrument like this under any state all the time, and balances each other with outside mud pressure.This design can be identical with the design in the patent 99210724.5.
In sum, more than be preferred embodiment of the present invention only, be not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. an eight-arm mechanical pusher comprises: motor, clutch, roller screw, drive disk assembly, backup arm; Motor links to each other with roller screw by clutch, and change into and pass to drive disk assembly after moving axially displacement by the roller screw displacement that will rotate in a circumferential direction, it is characterized in that, described drive disk assembly is provided with elastic thrust mechanism, and described backup arm opens under the effect of this elastic thrust mechanism or draws in; Be used for the auxiliary righting mechanism of setting upright also being equipped with by a backup matrix near an end of described backup arm, this righting mechanism is driven by described drive disk assembly.
2. eight-arm mechanical pusher as claimed in claim 1 is characterized in that, described elastic thrust mechanism comprises backup spring and distance rod, and an end of backup spring is pressed against on the described drive disk assembly, and the other end is connected with described backup arm elasticity by distance rod.
3. eight-arm mechanical pusher as claimed in claim 2, it is characterized in that, described righting mechanism comprises: righting arm, set upright elastic thrust mechanism, set upright elastic thrust mechanism and be arranged on the described drive disk assembly, described righting arm opens under this sets upright the effect of elastic thrust mechanism or draws in.
4. eight-arm mechanical pusher as claimed in claim 3, it is characterized in that, the described elastic thrust mechanism that sets upright comprises: set upright spring, sliding shoe and centralizer leaf spring, one end of centralizer leaf spring is pressed against on the described drive disk assembly, its other end links to each other with an end elasticity of setting upright spring by sliding shoe, the other end of setting upright spring is pressed against on the described backup matrix, and described sliding shoe is hinged with described righting arm and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710099790A CN101054896B (en) | 2007-05-30 | 2007-05-30 | Eight-arm mechanical pusher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710099790A CN101054896B (en) | 2007-05-30 | 2007-05-30 | Eight-arm mechanical pusher |
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| Publication Number | Publication Date |
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| CN101054896A CN101054896A (en) | 2007-10-17 |
| CN101054896B true CN101054896B (en) | 2010-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200710099790A Active CN101054896B (en) | 2007-05-30 | 2007-05-30 | Eight-arm mechanical pusher |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102071931B (en) * | 2010-12-29 | 2014-01-15 | 中国石油天然气集团公司 | Eight-arm omnibearing three-dimensional lateral logging method and logging instrument |
| CN102418540B (en) * | 2011-12-01 | 2014-04-02 | 中国煤炭科工集团太原研究院 | Hydraulic eight-arm anchor rod drill carriage for coal mine |
| CN104237947B (en) * | 2014-05-08 | 2017-01-25 | 珠海市泰德企业有限公司 | Well locking device for seismic apparatus in well |
| CN104074509A (en) * | 2014-07-18 | 2014-10-01 | 北京中石曙光科技有限公司 | Multilayer pushing device and petroleum logger provided with same |
| CN104389582B (en) * | 2014-10-17 | 2017-12-19 | 中国海洋石油总公司 | One kind well logging pushing device |
| CN105089633B (en) * | 2015-08-04 | 2017-09-26 | 沈阳新锦精密仪器仪表研究所 | Double well diameter measuring microelectrode telescoping ram |
| CN109458140B (en) * | 2018-08-21 | 2020-08-28 | 王少斌 | Multi-arm pushing structure capable of controlling independent stretching |
| CN109751041B (en) * | 2019-01-30 | 2023-03-14 | 中国海洋石油集团有限公司 | Flexible logging instrument |
| CN109915118B (en) * | 2019-04-01 | 2023-01-31 | 平顶山天安煤业股份有限公司 | Gas extraction borehole deformation monitoring device and method |
| CN110031264B (en) * | 2019-05-10 | 2022-04-08 | 中海油田服务股份有限公司 | Pushing sampling system and setting method thereof |
| CN110295897A (en) * | 2019-07-01 | 2019-10-01 | 中国海洋石油集团有限公司 | A kind of telescoping ram |
| CN110295863B (en) * | 2019-07-03 | 2021-07-20 | 王少斌 | Double-layer eight-arm sidewall contact device |
| CN110965993B (en) * | 2019-11-19 | 2023-01-10 | 中国石油天然气集团有限公司 | Push-leaning type three-arm temperature logging instrument |
| CN114233222A (en) * | 2020-11-26 | 2022-03-25 | 西安振宇电子工程有限公司 | Six-arm sidewall contact device suitable for small-diameter oil well |
| CN112983274B (en) * | 2021-03-09 | 2023-03-14 | 中国石油大学(华东) | Rotary guide type two-stage down-the-hole hammer drill |
| CN113863881A (en) * | 2021-10-25 | 2021-12-31 | 杭州瑞利声电技术有限公司 | Logging instrument pushing device capable of being automatically folded |
| CN114961608B (en) * | 2022-08-01 | 2022-10-28 | 成都理工大学 | Underground blasting robot based on planet roller screw extension and traction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4251773A (en) * | 1977-06-24 | 1981-02-17 | Schlumberger Technology Corporation | Method and apparatus for exploration of geological formation tilt in boreholes |
| US4453219A (en) * | 1974-12-30 | 1984-06-05 | Schlumberger Technology Corporation | Dipmeter displacement processing technique |
| US4495605A (en) * | 1980-07-15 | 1985-01-22 | Institut Francais Du Petrole | Method for determining the dip angle of geological formations traversed by a borehole |
| CN2367765Y (en) * | 1999-02-13 | 2000-03-08 | 尹宪洪 | Small-well-diameter automatic sidewall-contacting combined instrument |
| CN2372447Y (en) * | 1999-05-12 | 2000-04-05 | 中国海洋石油测井公司 | Eight-arm telescoping ram of petroleum logging instrument |
| CN2585191Y (en) * | 2002-12-16 | 2003-11-05 | 大庆油田有限责任公司 | Injection well ultrasonic flow logging instrument |
| CN1718993A (en) * | 2005-06-17 | 2006-01-11 | 中国石化集团胜利石油管理局测井公司 | Interference happening guiding centralising device |
| CN2779063Y (en) * | 2004-12-15 | 2006-05-10 | 盘锦辽河油田裕隆实业有限公司 | Pressure balance type mechanical pushing device |
-
2007
- 2007-05-30 CN CN200710099790A patent/CN101054896B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4453219A (en) * | 1974-12-30 | 1984-06-05 | Schlumberger Technology Corporation | Dipmeter displacement processing technique |
| US4251773A (en) * | 1977-06-24 | 1981-02-17 | Schlumberger Technology Corporation | Method and apparatus for exploration of geological formation tilt in boreholes |
| US4495605A (en) * | 1980-07-15 | 1985-01-22 | Institut Francais Du Petrole | Method for determining the dip angle of geological formations traversed by a borehole |
| CN2367765Y (en) * | 1999-02-13 | 2000-03-08 | 尹宪洪 | Small-well-diameter automatic sidewall-contacting combined instrument |
| CN2372447Y (en) * | 1999-05-12 | 2000-04-05 | 中国海洋石油测井公司 | Eight-arm telescoping ram of petroleum logging instrument |
| CN2585191Y (en) * | 2002-12-16 | 2003-11-05 | 大庆油田有限责任公司 | Injection well ultrasonic flow logging instrument |
| CN2779063Y (en) * | 2004-12-15 | 2006-05-10 | 盘锦辽河油田裕隆实业有限公司 | Pressure balance type mechanical pushing device |
| CN1718993A (en) * | 2005-06-17 | 2006-01-11 | 中国石化集团胜利石油管理局测井公司 | Interference happening guiding centralising device |
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| CN101054896A (en) | 2007-10-17 |
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: China Oilfield Services Limited Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: China Oilfield Services Limited Patentee before: China National Offshore Oil Corporation |