CN2539019Y - High-pressure heavy hydraulic cylinder with linear displacement sensor - Google Patents
High-pressure heavy hydraulic cylinder with linear displacement sensor Download PDFInfo
- Publication number
- CN2539019Y CN2539019Y CN 02220197 CN02220197U CN2539019Y CN 2539019 Y CN2539019 Y CN 2539019Y CN 02220197 CN02220197 CN 02220197 CN 02220197 U CN02220197 U CN 02220197U CN 2539019 Y CN2539019 Y CN 2539019Y
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- China
- Prior art keywords
- cylinder
- piston rod
- cylinder bottom
- center hole
- cylinder barrel
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a high pressure heavy type hydraulic cylinder with a linear displacement sensor, suitable for accurately detecting the running position or speed of a running apparatus, comprising a cylinder barrel, wherein a piston rod is positioned inside the cylinder barrel; a cylinder head and a cylinder bottom are respectively fixed on the front end of the cylinder barrel and the rear end of the cylinder barrel; after passing through a central hole in the cylinder head, the front end of the piston rod is connected with a connector which is slide fitted with a through hole in the cylinder head; a circumferential direction boss arranged on the rear end of the piston rod is slide fitted with the cylinder barrel; a cushion magnet box provided inside with a magnetic ring is arranged on the rear end of the piston rod; a central hole is arranged on the piston rod, the cushion magnet box and the cylinder bottom; a sensor is fixed on the outer end of the cylinder bottom and sealed with the cylinder bottom; after sequentially passing through the central hole of the cylinder bottom, the magnetic ring and the central hole of the cushion magnet, a wave guide rod is inserted into the central hole of the piston rod. With compact size, the utility model has the advantages of not being influenced by surrounding working environment, being capable of accurate measurement of running positions of the piston rod, and being capable of self-control.
Description
Technical field
The utility model relates to a kind of mechanical actuating mechanism.Specifically, be the high pressure heavy hydraulic cylinder that has Linear displacement transducer that can accurately detect travelling mechanism running position or speed.
Background technique
Before the utility model is made,, and realize that control automatically, its method are that the external Linear displacement transducer is installed on the travelling mechanism that oil hydraulic cylinder drives if need piston rod running position or speed in the oil hydraulic cylinder are monitored.Because Linear displacement transducer is arranged at outside the oil hydraulic cylinder, it is many not only to take up space, and is subject to the influence of surrounding working environment, for example pollution of oil stain, solution, dust.When serious, can't accurately measure, be difficult to realize automatic control the operation of piston rod.
Summary of the invention
The purpose of this utility model is to provide a kind of high pressure heavy hydraulic cylinder that has Linear displacement transducer.This oil hydraulic cylinder, occupy the space few, not influenced by surrounding working environment, can realize accurate measurement its piston rod running position, can realize control automatically.
For achieving the above object, the utility model adopts following technical solution:
The high pressure heavy hydraulic cylinder that has Linear displacement transducer of the present utility model comprises cylinder barrel.Piston rod is arranged in the cylinder barrel, and its front end and back end is fixed with cylinder head and cylinder bottom respectively, on this cylinder head and the cylinder bottom center hole is arranged.The front end of piston rod joins with connecting head after passing the center hole of cylinder head, is the sealing shape between the through hole of itself and cylinder head and is slidingly matched.There is circumferential boss the rear end that is characterized in piston rod, also is the sealing shape between this circumferential boss and cylinder barrel and is slidingly matched.The piston rod rear end is fixed with the buffering magnetic box, and this buffering magnetic box internal fixation has magnet ring.On piston rod, buffering magnetic box and the cylinder bottom center hole is arranged all.The outer end of cylinder bottom is fixed with sensor, sealing mutually between this sensor and cylinder bottom, and its waveguide rod is inserted in the center hole of piston rod after passing the center hole of center hole, magnet ring and buffering magnetic box of cylinder bottom successively.
Because the high pressure heavy hydraulic cylinder that has Linear displacement transducer of the present utility model, there is circumferential boss the rear end of its piston rod, also is the sealing shape between this circumferential boss and cylinder barrel and is slidingly matched.The piston rod rear end is fixed with the buffering magnetic box, and this buffering magnetic box internal fixation has magnet ring.On piston rod, buffering magnetic box and the cylinder bottom concentric hole is arranged all.The outer end of cylinder bottom is fixed with sensor, sealing mutually between this sensor and cylinder bottom, and its waveguide rod is inserted in the concentric hole of piston rod after passing the concentric hole of concentric hole, magnet ring and buffering magnetic box of cylinder bottom successively.Make sensor machine waveguide rod and oil hydraulic cylinder combine together, do not advance, only to occupy the space few, and hand is not influenced by surrounding working environment, can accurately measure the running position of piston rod, can realize control automatically.
Description of drawings
Fig. 1 is the high pressure heavy hydraulic cylinder cross-sectional schematic that has Linear displacement transducer of the present utility model;
Fig. 2 is the B enlarged view of Fig. 1.
Embodiment
See Fig. 1 and Fig. 2, the high pressure heavy hydraulic cylinder that has Linear displacement transducer of the present utility model comprises cylinder barrel 5, and piston rod 2 is arranged in the cylinder barrel 5.The front end and back end of cylinder barrel 5 is separately installed with cylinder head 3 and cylinder bottom 12.Wherein: cylinder head 3 and cylinder bottom 12 are cylindrical, the centre of its cylindrical circumferentially is processed with boss along it, the front end and back end of cylinder barrel (5) all is processed with outside thread, also be processed with screw thread on the interior circle of lasso 8 accordingly, a lasso 8 is all screwed in the front end and back end of cylinder barrel 5, so that all form flange in the front end and back end of cylinder barrel 5.The front end and back end of cylinder barrel 5 is enclosed within respectively on the front end of the rear end of cylinder head 3 and cylinder bottom 12, and by means of screw 4 and packing ring cylinder barrel 5 front end and back end flanges is connected mutually with boss on cylinder head 3, cylinder bottom 12 cylindricals.Meanwhile, make the outside diameter of lasso 8 and the circumferential boss equal diameters on cylinder head 3 and cylinder bottom 12 cylindricals.On cylinder head 3 and the cylinder bottom 12 center hole is arranged all, the front end of piston rod 2 stretches out outside the center hole of cylinder head 3, and its end adopts screw thread to be connected to a connecting head 1, is connected with travelling mechanism being used for.The rear end of piston rod 2 is in the cylinder barrel 5, and its end diameter equates greatly and with the internal diameter of cylinder barrel 5, to form circumferential boss.5 of this circumferential boss and cylinder barrels are by guide ring 6 and seal ring 16 and are slidingly matched.The rear end of piston rod 2 is provided with buffering magnetic box 7, in the buffering magnetic box 7 magnet ring 15 is arranged, and there is gland 9 magnet ring 15 outsides.This gland, magnet ring, buffering magnetic box all are fixed on piston rod 2 rear ends by means of screw 10.Said buffering magnetic box 7 is cylindric, is with induction cover 11 on the cylindrical of its rear end.
The outer end of cylinder bottom 12 is equipped with linear transducer 13, this linear transducer passes through seal ring sealing-in mutually with 12 of cylinder bottoms, the waveguide rod 17 of its front end is inserted in the center hole of piston rod 2 after passing the center hole of center hole, magnet ring 15 and buffering magnetic box 7 bottoms of screw, the gland 9 of cylinder bottom 12 successively.
The LHMRAOOMO17ORO that said linear transducer 13 is produced for American MTS company.It descends in working order and control centre 14 joins.
During the high pressure heavy hydraulic cylinder working that has a Linear displacement transducer of the present utility model, piston rod 2 in it does reciprocating linear motion at the effect lower edge of fluid pressure cylinder barrel 5, thereby the buffering magnetic box 7 and the magnet ring 15 thereof that drive its rear end are reciprocating along waveguide rod 17.Make linear displacement sensor 13 utilize two different magnetic fields to intersect and produce a strain-pulse signal, detect the required time cycle by control centre 14, thereby converse the accurate position of piston rod 2 motions.Two magnetic fields wherein, one from magnet ring 15, and another is the current pulse of source waveguide rod 17 then.
Claims (2)
1. a high pressure heavy hydraulic cylinder that has Linear displacement transducer comprises cylinder barrel (5); Piston rod (2) is arranged in the cylinder barrel (5), and its front end and back end is fixed with cylinder head (3) and cylinder bottom (12) respectively, on this cylinder head and the cylinder bottom center hole is arranged; The front end of piston rod (2) joins with connecting head (1) after passing the center hole of cylinder head (3), is the sealing shape between the through hole of itself and cylinder head (3) and is slidingly matched; There is circumferential boss the rear end that it is characterized in that piston rod (2), also is the sealing shape between this circumferential boss and cylinder barrel (5) and is slidingly matched; Piston rod (2) rear end is fixed with buffering magnetic box (7), and this buffering magnetic box internal fixation has magnet ring (15); On piston rod (2), buffering magnetic box (7) and the cylinder bottom (12) center hole is arranged all; The outer end of cylinder bottom (12) is fixed with sensor (13), sealing mutually between this sensor and cylinder bottom (12), its waveguide rod (17) is inserted in the center hole of piston rod (2) after passing center hole, the magnet ring (15) of cylinder bottom (12) successively and cushioning the center hole of magnetic box (7).
2. oil hydraulic cylinder according to claim 1 is characterized in that said magnet ring (15) is fixed in the buffering magnetic box (7) by means of gland (9) and screw (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02220197 CN2539019Y (en) | 2002-04-26 | 2002-04-26 | High-pressure heavy hydraulic cylinder with linear displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02220197 CN2539019Y (en) | 2002-04-26 | 2002-04-26 | High-pressure heavy hydraulic cylinder with linear displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2539019Y true CN2539019Y (en) | 2003-03-05 |
Family
ID=33698537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02220197 Expired - Fee Related CN2539019Y (en) | 2002-04-26 | 2002-04-26 | High-pressure heavy hydraulic cylinder with linear displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2539019Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100434729C (en) * | 2003-04-03 | 2008-11-19 | 柳根亨 | Actuator having the function of control of operation displacement |
| CN100545466C (en) * | 2006-06-16 | 2009-09-30 | 萱场工业株式会社 | Fluid pressure cylinder unit with stroke sensor |
| CN1985104B (en) * | 2004-07-14 | 2010-05-05 | 田纳科自动化操作有限公司 | Shock absorber with integrated displacement sensor and the displacement sensor |
| CN101900148A (en) * | 2010-07-12 | 2010-12-01 | 无锡市长江液压缸厂 | Short-stroke pressure-maintaining high-pressure heavy hydraulic cylinder with high-pressure proximity switches |
| CN101922483A (en) * | 2010-07-12 | 2010-12-22 | 无锡市长江液压缸厂 | Short-range pressure-retaining high-pressure heavy hydraulic cylinder with built-in linear displacement sensor |
| CN102310126A (en) * | 2011-10-14 | 2012-01-11 | 天津市天锻压力机有限公司 | Longitudinal beam hydraulic press displacement detection device |
| CN101504019B (en) * | 2008-12-17 | 2012-05-02 | 国营第三八八厂 | Permanent magnet buffering hydraulic cylinder |
| CN103210219A (en) * | 2010-11-16 | 2013-07-17 | 伊利诺斯工具制品有限公司 | Motor control |
| CN105715608A (en) * | 2014-11-30 | 2016-06-29 | 中国科学院沈阳自动化研究所 | Underwater hydraulic linear cylinder mechanism with position feedback function |
| CN106224320A (en) * | 2016-09-12 | 2016-12-14 | 天津大学 | Inbuilt displacement sensor integrated form list rod symmetrical hydraulic cylinder |
-
2002
- 2002-04-26 CN CN 02220197 patent/CN2539019Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100434729C (en) * | 2003-04-03 | 2008-11-19 | 柳根亨 | Actuator having the function of control of operation displacement |
| CN1985104B (en) * | 2004-07-14 | 2010-05-05 | 田纳科自动化操作有限公司 | Shock absorber with integrated displacement sensor and the displacement sensor |
| CN100545466C (en) * | 2006-06-16 | 2009-09-30 | 萱场工业株式会社 | Fluid pressure cylinder unit with stroke sensor |
| CN101504019B (en) * | 2008-12-17 | 2012-05-02 | 国营第三八八厂 | Permanent magnet buffering hydraulic cylinder |
| CN101900148A (en) * | 2010-07-12 | 2010-12-01 | 无锡市长江液压缸厂 | Short-stroke pressure-maintaining high-pressure heavy hydraulic cylinder with high-pressure proximity switches |
| CN101922483A (en) * | 2010-07-12 | 2010-12-22 | 无锡市长江液压缸厂 | Short-range pressure-retaining high-pressure heavy hydraulic cylinder with built-in linear displacement sensor |
| CN103210219A (en) * | 2010-11-16 | 2013-07-17 | 伊利诺斯工具制品有限公司 | Motor control |
| CN103210219B (en) * | 2010-11-16 | 2016-08-31 | 伊利诺斯工具制品有限公司 | Motor controls |
| US9909601B2 (en) | 2010-11-16 | 2018-03-06 | Illinois Tool Works Inc. | Motor control |
| CN102310126A (en) * | 2011-10-14 | 2012-01-11 | 天津市天锻压力机有限公司 | Longitudinal beam hydraulic press displacement detection device |
| CN105715608A (en) * | 2014-11-30 | 2016-06-29 | 中国科学院沈阳自动化研究所 | Underwater hydraulic linear cylinder mechanism with position feedback function |
| CN106224320A (en) * | 2016-09-12 | 2016-12-14 | 天津大学 | Inbuilt displacement sensor integrated form list rod symmetrical hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |