CN102128335B - Adjustable adaptive traveling mechanism in pipeline - Google Patents
Adjustable adaptive traveling mechanism in pipeline Download PDFInfo
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- CN102128335B CN102128335B CN2011100305966A CN201110030596A CN102128335B CN 102128335 B CN102128335 B CN 102128335B CN 2011100305966 A CN2011100305966 A CN 2011100305966A CN 201110030596 A CN201110030596 A CN 201110030596A CN 102128335 B CN102128335 B CN 102128335B
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- supporting bracket
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- chain
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Abstract
The invention provides an adjustable adaptive traveling mechanism in a pipeline, which can be applied to various pipeline projects. In the traveling mechanism, a chain can be tensioned by arranging a chain tensioning mechanism; parallel motion of parallel brackets is realized through an adjusting mechanism; the traveling mechanism has the function that the distance between the two parallel brackets can be automatically adjusted according to looseness of soil, so that the chain is contacted with the soil all the time; and a chain with an accessory ensures that the chain is effectively contacted with the soil during movement to produce sufficient forward thrust.
Description
Technical field
The present invention relates to the mechanical running mechanism field, be specially traveller in a kind of adjustable self-adapting pipe.
Background technique
In engineerings such as pipeline inspection detection, micro-tube driving, often need machinery to have the function of under motivational drive, advancing voluntarily.At present; The detecting robot of pipe that Tsing-Hua University develops adopts the full dead-beat structure that drives; By the driving wheel of three direct current generators through three radial equipartitions of worm and gear drive, make driving wheel stretching tube wall through a scissor-type spring hold-down mechanism, rely on the frictional force walking movement; The small-sized movable robot in pipe that Shanghai University develops is along with the rotation of motor; Driving mechanism is done spiral motion, and retaining mechanism moves along pipeline center's axis, changes the current polarity that puts on motor; Can change the movement direction of robot, thereby make robot free to advance or retreat in pipe.
But the traveller that the detecting robot of pipe of Tsing-Hua University's development adopts is wheeled mechanism; Its adaptive capacity is poor; In particular in the micro-tube excavation work time, a little less than the ability of advancing of wheeled mechanism in soil layer, can not well drive advancing of traveller and anterior boring mechanism.
Summary of the invention
The technical problem that solves
The present invention is difficult to adapt to the complex environment in the pipework for solving existing traveller, and defective such as adaptive ability difference has proposed traveller in a kind of adjustable self-adapting pipe in the process of advancing, and can be applied in the various pipework.
Technological scheme
Technological scheme of the present invention is:
Traveller in said a kind of adjustable self-adapting pipe is characterized in that: comprise power mechanism, supporting bracket and driving regulating mechanism;
Power mechanism includes RV retarder and 4 drive sprockets; The RV retarder links to each other with the external impetus input shaft; 4 drive sprockets are separately fixed at two pto two ends of RV retarder; Pto is perpendicular to power input shaft, and power mechanism is realized slowing down, power commutates and the double-shaft power output function;
The supporting bracket front end is connected through adpting flange and RV retarder; The supporting bracket rear portion is a hollow structure, is used to install the guide runner of driving regulating mechanism, and hollow structure has chute on the bi-side, and tapped hole is arranged on the Transverse plane behind the supporting bracket; There is the parallel axis hole of two symmetries at the supporting bracket middle part, and axis hole is parallel to pto, and the axis hole internal fixation has interior driven shaft, and interior driven shaft bearings at both ends is connected with interior driven sprocket; Supporting bracket also has tapped hole between axis hole and adpting flange, tapped hole is used for linking to each other with the adjusting bolt of driving regulating mechanism perpendicular to pto and power input shaft;
Driving regulating mechanism includes driving mechanism, chain tensioning mechanism and controlling mechanism; Driving mechanism is divided into two parts symmetrical along supporting bracket; Every part includes parallel bracket, sprocket wheel connecting rod and driven sprocket, and there is axis hole at the parallel bracket two ends, driven shaft and back driven shaft before being fixed with respectively in the axis hole; Preceding driven shaft bearings at both ends is connected with front idler sproket; Before driven shaft and pto with linking to each other through preceding sprocket wheel connecting rod between the side, back driven shaft bearings at both ends is connected with driven sprocket afterwards, back driven shaft and interior driven shaft are with linking to each other through back sprocket wheel connecting rod between the side; Also be fixed with adjusting axle between the sprocket wheel connecting rod after two of every parts, adjusting axle is parallel with the back driven shaft; Chain tensioning mechanism is divided into two parts symmetrical along supporting bracket, and every part includes the adjustment support, regulates bolt and tension sprocket, and the adjustment support is " U " type structure; The bottom surface has through hole; The side, both sides has coaxial aperture, and the adjusting bolt passes adjustment support bottom surface through hole and is connected with supporting bracket middle part tapped hole, and is with jump ring between adjusting bolt and the adjustment support; Can drive the adjustment support when adjusting bolt is rotated moves axially along regulating bolt; Chain tensioner spindle passes adjustment cradle axis hole, and is connected with the adjustment support, and the chain tensioner spindle bearings at both ends is connected with tension sprocket; Controlling mechanism comprises adjusting screw rod, guide runner, the axis of guide and adjusting connecting rod, and the tapped hole that adjusting screw rod passes the supporting bracket rear end is threaded with supporting bracket, and guide runner bottom surface through hole is passed in the adjusting screw rod end; The adjusting screw rod middle part is extended with block; On the adjusting screw rod between block and the guide runner outside, bottom surface, be with spring, guide runner is " U " type structure, and the side, both sides has coaxial aperture; Guide runner places the hollow structure at supporting bracket rear portion; The axis of guide passes guide runner both sides coaxial aperture, and axis of guide two ends are in the supporting bracket rear side chute, links to each other through regulating connecting rod between the axis of guide and the adjusting axle;
Around connecting, tension sprocket is in the chain inboard to chain, is used for chain tension with same group drive sprocket, front idler sproket, the driven link in back and interior driven sprocket.
The preferred version of traveller in said a kind of adjustable self-adapting pipe, it is characterized in that: supporting bracket also has the guide rod hole between axis hole and adpting flange, guide rod is installed with guide rod in the hole; On parallel bracket, have guiding groove, guiding groove cooperates with guide rod, and the restriction parallel bracket can only move in the in-plane perpendicular to pto.
The preferred version of traveller in said a kind of adjustable self-adapting pipe, it is characterized in that: supporting bracket also has the guiding axis hole between axis hole and adpting flange, is installed with the axis of guide in the guiding axis hole; The adjustment support has two through holes on the bottom surface; A through hole cooperates with the tapped hole at supporting bracket middle part; Another through hole cooperates with the guiding axis hole at supporting bracket middle part, and the axis of guide passes guiding axis hole and adjustment support bottom surface through hole, and restriction adjustment support can only move perpendicular to supporting bracket.
The preferred version of traveller in said a kind of adjustable self-adapting pipe; It is characterized in that: said chain is band annex chain; Annex is " U " type groove structure; Annex is fixed on the outside of every pair of outer plate of chain, and chain is stuck in the groove of annex, and the bi-side of annex are between two bearing pins of outer plate.
Beneficial effect
The present invention can realize the tensioning of chain through chain tensioning mechanism is set; Realize the parallel mobile of parallel bracket through controlling mechanism, and possess two distances between parallel bracket, guarantee that chain contacts with soil all the time according to the self-regulating function of the porousness of soil; Contact effectively with soil when making chain movement, produce enough forward thrust through band annex chain.
Description of drawings
Fig. 1: structural representation of the present invention;
Fig. 2: supporting bracket and chain tensioning mechanism part modular construction schematic representation;
Fig. 3: supporting bracket and controlling mechanism part modular construction schematic representation;
Fig. 4: band annex chain structure schematic representation;
Wherein: 1, power input shaft; 2, RV retarder; 3, drive sprocket; 4, preceding sprocket wheel connecting rod; 5, supporting bracket; 6, front idler sproket; 7, parallel bracket; 8, tension sprocket; 9, adjustment support; 10, guide rod; 11, interior driven sprocket; 12, back sprocket wheel connecting rod; 13, back driven sprocket; 14, adjusting screw rod; 15, adjusting axle; 16, the axis of guide; 17, regulate bolt; 18, chain tensioner spindle; 19, jump ring; 20, guide runner; 21, the axis of guide; 22, regulate connecting rod; 23, spring.
Embodiment
Below in conjunction with specific embodiment the present invention is described:
Embodiment:
Present embodiment is the traveller that is used for underground micro-tube tunneling construction, and through motor driving, traveller travels forward, and promotes anterior cutter head and carries out the pipeline driving, and pipe diameter is 20cm, and the pipe installation environment is the soil property environment.
With reference to accompanying drawing 1, present embodiment includes power mechanism, supporting bracket 5 and driving regulating mechanism.
Power mechanism comprises RV retarder 2 and 4 drive sprockets 3; RV retarder 2 links to each other with external impetus input shaft 1, and power input shaft 1 is the input of external motor power, and 4 drive sprockets 3 are separately fixed at two pto two ends of RV retarder 2; And be connected with the pto key; Pto is perpendicular to power input shaft, and two pto symmetry placements one on the other, is convenient to the work of back driving regulating mechanism.Power mechanism has been realized the function of deceleration, power switching-over and double-shaft power output.
Supporting bracket 5 front ends are connected with RV retarder 2 bolt through adpting flange.With reference to accompanying drawing 2 and accompanying drawing 3; Supporting bracket 5 rear portions are hollow structure; Be used to install the guide runner 20 of driving regulating mechanism, and on the hollow structure bi-side, have chute, be convenient to the axis of guide 21 two ends and in chute, move; On supporting bracket 5 back Transverse planes, also have tapped hole, be used for being threaded with adjusting screw rod 14; Before supporting bracket 5 rear portion hollow structures; Supporting bracket 5 has the parallel axis hole of two symmetries up and down, and axis hole is parallel to pto, driven shaft in the axis hole internal fixation; And with interior driven shaft interference fit, interior driven shaft two ends adopt bearing be connected with in driven sprocket 11; Supporting bracket 5 axis hole and and adpting flange between also have two guide rod holes; Lead an axis hole and a tapped hole; The central axis in four holes all perpendicular to supporting bracket 5 planes, has passed guide rod 10 in the guide rod hole, effect be with parallel bracket 7 on guiding groove cooperate; Restriction parallel bracket 7 can only move in the in-plane perpendicular to pto, and tapped hole is used for being threaded with the adjusting bolt 17 of driving regulating mechanism.
With reference to accompanying drawing 1, driving regulating mechanism includes driving mechanism, chain tensioning mechanism and controlling mechanism.
Driving mechanism is divided into two parts symmetrical along supporting bracket, and every part includes a parallel bracket 7, four sprocket wheel connecting rods and six driven sprockets, and there is parallel axis hole at parallel bracket 7 two ends; Front end axis hole internal fixation has preceding driven shaft; Front end axis hole and preceding driven shaft interference fit, rear end axis hole internal fixation has back driven shaft, rear end axis hole and back driven shaft interference fit; Preceding driven shaft two ends adopt bearing to be connected with front idler sproket 6; Before driven shaft parallel with pto, link to each other through preceding sprocket wheel connecting rod 4 between the termination of preceding driven shaft and pto homonymy, between preceding sprocket wheel connecting rod 4 and preceding driven shaft and the pto for being rotationally connected; Back driven shaft two ends adopt bearing to be connected with back driven sprocket 13; Back driven shaft is parallel with interior driven shaft, link to each other through back sprocket wheel connecting rod 12 between the termination of back driven shaft and interior driven shaft homonymy, back sprocket wheel connecting rod 12 and afterwards between driven shaft and the interior driven shaft for being rotationally connected; Also be fixed with adjusting axle 15 between the sprocket wheel connecting rod 12 behind two of every part, adjusting axle 15 is parallel with the back driven shaft.In fact every part driving mechanism is the parallel-crank mechanism of being made up of sprocket wheel connecting rod behind parallel bracket 7, two preceding sprocket wheel connecting rods, supporting bracket 5 and two, is the hinge axis of parallel-crank mechanism with pto, preceding driven shaft, back driven shaft and interior driven shaft.,, drive the annex chain and rotate, and contact when drive sprocket rotates around connecting with the drive sprocket of being with the annex chain with same group, front idler sproket, the driven link in back and interior driven sprocket, form frictional force, thereby can advance with tube wall soil.
With reference to accompanying drawing 1 and accompanying drawing 2, chain tensioning mechanism also is divided into two parts symmetrical along supporting bracket, and every part includes adjustment support 9, regulates bolt 17 and tension sprocket 8; Adjustment support 9 is " U " type structure; " U " groove is towards supporting bracket 5, and adjustment support 9 bottom surfaces have two through holes, and the side, both sides has coaxial aperture; The through hole that adjusting bolt 17 passes adjustment support 9 bottom surfaces is threaded with supporting bracket 5 middle part tapped holes; And regulate between bolt 17 and the adjustment support 9 and be with jump ring 19, jump ring 19 can drive adjustment support 9 and move axially along regulating bolt 17 when adjusting bolt 17 is rotated, and the axis of guide 16 passes the guiding axis hole of supporting bracket 5 and another through hole of adjustment support 9 bottom surfaces; Restriction adjustment support 9 can only move along the axis of guide 16; Chain tensioner spindle 18 passes the axis hole of adjustment support 9 sides, and with the axis hole interference fit, chain tensioner spindle 18 two ends adopt bearing to be connected with tension sprocket 8.Here the mechanism of chain tensioning mechanism is to drive 9 motions of adjustment support through rotation adjusting bolt 17, and then drives tension sprocket 8 motions, and it is inboard that tension sprocket 8 is in band annex chain, is used for band annex chain tension.
With reference to accompanying drawing 4; Every pair of outer plate outside of band annex chain is fixed with " U " shape annex through splicing, and chain is stuck in the groove of " U " shape annex, and the bi-side of " U " shape annex are between two bearing pins of outer plate; The angle of " U " shape annex outer bottom and two pin shaft hole lines of centres of outer plate is 30 °; The angle direction is consistent with the direction of band annex chain movement, contacts effectively with soil when so just can make band annex chain movement, produces enough forward thrust.
With reference to accompanying drawing 1 and accompanying drawing 3, controlling mechanism comprises adjusting screw rod 14, guide runner 20, the axis of guide 21 and regulates connecting rod 22.The tapped hole that adjusting screw rod 14 passes supporting bracket 5 rear ends is threaded with supporting bracket 5, and the front end of adjusting screw rod 14 passes the bottom surface through hole of guide runner 20, and with guide runner 20 Spielpassung; Adjusting screw rod 14 middle parts are extended with block, on the adjusting screw rod between block and guide runner 20 outside, bottom surface, are with spring 23, when rotation adjusting screw rod 14 advances; Block promotes spring 23 and advances; Spring 23 and then promotion guide runner 20 advance, and guide runner 20 is " U " type structure, and the side, both sides has coaxial aperture; Guide runner 20 places the hollow structure at supporting bracket 5 rear portions; The axis of guide 21 passes guide runner 20 both sides coaxial apertures, and the axis of guide 21 two ends are in the supporting bracket 5 rear side chutes, thereby the axis of guide 21 restricted guidance slide blocks 20 can only move along supporting bracket 5 rear side chute directions; Link to each other through regulating connecting rod 22 between the axis of guide 21 and the adjusting axle 15, and regulate connecting rod 22 and be with the axis of guide 21 and adjusting axle 15 and be rotationally connected.Here the purpose of controlling mechanism is in order to make whole traveller can have adaptive ability; After adjusting screw rod 14 is confirmed in certain position; The motion of guide runner 20 is exactly that pressure by the pressure of spring 23 and pipeline soil wall decides, when line size diminishes, and driven sprocket before and after the pipeline compression; And then drive parallel bracket 7 and draw close to supporting bracket 5, regulate connecting rod 22 this moment and promote guide runners 20 pressure springs 23; When line size became big, spring 23 promoted guide runner 20 and drives to regulate connecting rod 22 motions, promotes parallel bracket 7 and outside supporting bracket 5, opens, and contacts with pipeline soil wall thereby remain band annex chain.
Working procedure of the present invention is: at first regulate adjusting screw rod and make two parallel brackets keep a proper height, be convenient to mechanism and advance.Regulate chain tensioning mechanism and make band annex chain tension, and fully contact with the external world.Power source is started working then; And through RV retarder realization deceleration and power switching-over; To drive sprocket, drive sprocket drives all driven sprocket of annex chain drive and rotates the worm-wheel shaft of RV retarder again with transmission of power, realizes that finally mechanism advances forward.
Claims (4)
1. the interior traveller of adjustable self-adapting pipe is characterized in that: comprise power mechanism, supporting bracket (5) and driving regulating mechanism;
Power mechanism includes RV retarder (2) and 4 drive sprockets (3); The RV retarder links to each other with external impetus input shaft (1); 4 drive sprockets are separately fixed at two pto two ends of RV retarder; Pto is perpendicular to power input shaft, and power mechanism is realized slowing down, power commutates and the double-shaft power output function;
Supporting bracket (5) front end is connected through adpting flange and RV retarder; The supporting bracket rear portion is a hollow structure, is used to install the guide runner (20) of driving regulating mechanism, and hollow structure has chute on the bi-side, and tapped hole is arranged on the Transverse plane behind the supporting bracket; There is the parallel axis hole of two symmetries at the supporting bracket middle part, and axis hole is parallel to pto, and the axis hole internal fixation has interior driven shaft, and interior driven shaft bearings at both ends is connected with interior driven sprocket (11);
Supporting bracket also has tapped hole between axis hole and adpting flange, tapped hole is used for linking to each other with the adjusting bolt (17) of driving regulating mechanism perpendicular to pto and power input shaft;
Driving regulating mechanism includes driving mechanism, chain tensioning mechanism and controlling mechanism; Driving mechanism is divided into two parts symmetrical along supporting bracket; Every part includes parallel bracket (7), sprocket wheel connecting rod and driven sprocket, and there is axis hole at the parallel bracket two ends, driven shaft and back driven shaft before being fixed with respectively in the axis hole; Preceding driven shaft bearings at both ends is connected with front idler sproket (6); Before driven shaft and pto with linking to each other through preceding sprocket wheel connecting rod (4) between the side, back driven shaft bearings at both ends is connected with driven sprocket (13) afterwards, back driven shaft and interior driven shaft are with linking to each other through back sprocket wheel connecting rod (12) between the side; Also be fixed with adjusting axle (15) between the sprocket wheel connecting rod after two of every parts, adjusting axle is parallel with the back driven shaft; Chain tensioning mechanism is divided into two parts symmetrical along supporting bracket, and every part includes adjustment support (9), regulates bolt (17) and tension sprocket (8), and the adjustment support is " U " type structure; The bottom surface has through hole; The side, both sides has coaxial aperture, and the adjusting bolt passes adjustment support bottom surface through hole and is connected with supporting bracket middle part tapped hole, and is with jump ring (19) between adjusting bolt and the adjustment support; Can drive the adjustment support when adjusting bolt is rotated moves axially along regulating bolt; Chain tensioner spindle passes adjustment cradle axis hole, and is connected with the adjustment support, and the chain tensioner spindle bearings at both ends is connected with tension sprocket; Controlling mechanism comprises adjusting screw rod (14), guide runner (20), the axis of guide (21) and regulates connecting rod (22); The tapped hole that adjusting screw rod passes the supporting bracket rear end is threaded with supporting bracket; Guide runner bottom surface through hole is passed in the adjusting screw rod end, and the adjusting screw rod middle part is extended with block, on the adjusting screw rod between block and the guide runner outside, bottom surface, is with spring (23); Guide runner is " U " type structure; The side, both sides has coaxial aperture, and guide runner places the hollow structure at supporting bracket rear portion, and the axis of guide passes guide runner both sides coaxial aperture; And axis of guide two ends are in the supporting bracket rear side chute, link to each other through regulating connecting rod between the axis of guide and the adjusting axle;
Around connecting, tension sprocket is in the chain inboard to chain, is used for chain tension with same group drive sprocket, front idler sproket, back driven sprocket and interior driven sprocket.
2. according to traveller in the said a kind of adjustable self-adapting pipe of claim 1, it is characterized in that: supporting bracket also has the guide rod hole between axis hole and adpting flange, guide rod is installed with guide rod in the hole; On parallel bracket, have guiding groove, guiding groove cooperates with guide rod, and the restriction parallel bracket can only move in the in-plane perpendicular to pto.
3. according to traveller in the said a kind of adjustable self-adapting pipe of claim 1, it is characterized in that: supporting bracket also has the guiding axis hole between axis hole and adpting flange, is installed with the axis of guide in the guiding axis hole; The adjustment support has two through holes on the bottom surface; A through hole cooperates with the tapped hole at supporting bracket middle part; Another through hole cooperates with the guiding axis hole at supporting bracket middle part, and the axis of guide passes guiding axis hole and adjustment support bottom surface through hole, and restriction adjustment support can only move perpendicular to supporting bracket.
4. according to traveller in the said a kind of adjustable self-adapting pipe of claim 1; It is characterized in that: said chain is band annex chain; Annex is " U " type groove structure; Annex is fixed on the outside of every pair of outer plate of chain, and chain is stuck in the groove of annex, and the bi-side of annex are between two bearing pins of outer plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100305966A CN102128335B (en) | 2011-01-27 | 2011-01-27 | Adjustable adaptive traveling mechanism in pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100305966A CN102128335B (en) | 2011-01-27 | 2011-01-27 | Adjustable adaptive traveling mechanism in pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102128335A CN102128335A (en) | 2011-07-20 |
| CN102128335B true CN102128335B (en) | 2012-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100305966A Expired - Fee Related CN102128335B (en) | 2011-01-27 | 2011-01-27 | Adjustable adaptive traveling mechanism in pipeline |
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| Country | Link |
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| CN (1) | CN102128335B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102764804B (en) * | 2012-07-04 | 2014-11-05 | 哈尔滨工程大学 | Processing device and method for inner-wall resistance reduction structure of pipeline |
| CN103438326B (en) * | 2013-08-29 | 2015-08-05 | 宝鸡石油机械有限责任公司 | Crawler self-adapting pipe crawl device |
| CN104896257B (en) * | 2015-04-20 | 2016-10-05 | 西南石油大学 | Circulation variable-pitch propeller pipe robot |
| CN112524392B (en) * | 2020-11-30 | 2022-10-21 | 中国科学院光电技术研究所 | Pipeline robot running gear |
| CN116329841B (en) * | 2023-04-12 | 2024-05-10 | 山东辉腾防腐设备有限公司 | Welding device for processing steel lining tetrafluoro storage tank |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201014138Y (en) * | 2007-02-13 | 2008-01-30 | 杨友东 | Flexible creeping device in pipeline |
| US7505063B1 (en) * | 2004-02-17 | 2009-03-17 | Ronald A. Basterdo | Self-adjusting and centering camera mount for inspecting pipe |
| CN101915339A (en) * | 2010-07-29 | 2010-12-15 | 中国科学院深圳先进技术研究院 | Pipeline robot |
| CN201944487U (en) * | 2011-01-27 | 2011-08-24 | 西北工业大学 | Adjustable self-adapting in-pipe travel mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2367771C (en) * | 1999-03-29 | 2008-08-05 | Ftl Seals Technology Limited | Pipeline pig |
-
2011
- 2011-01-27 CN CN2011100305966A patent/CN102128335B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7505063B1 (en) * | 2004-02-17 | 2009-03-17 | Ronald A. Basterdo | Self-adjusting and centering camera mount for inspecting pipe |
| CN201014138Y (en) * | 2007-02-13 | 2008-01-30 | 杨友东 | Flexible creeping device in pipeline |
| CN101915339A (en) * | 2010-07-29 | 2010-12-15 | 中国科学院深圳先进技术研究院 | Pipeline robot |
| CN201944487U (en) * | 2011-01-27 | 2011-08-24 | 西北工业大学 | Adjustable self-adapting in-pipe travel mechanism |
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| Publication number | Publication date |
|---|---|
| CN102128335A (en) | 2011-07-20 |
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Owner name: NORTHWESTERN POLYTECHNICAL UNIVERSITY Effective date: 20140814 Owner name: JIANGSU SHENGHUI EQUIPMENT GROUP CO., LTD. Free format text: FORMER OWNER: NORTHWESTERN POLYTECHNICAL UNIVERSITY Effective date: 20140814 |
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Effective date of registration: 20140814 Address after: Fu Qian Lu baiding town Haian County of Jiangsu Province, Nantong City, No. 33, 226600 Patentee after: Jiangsu Shenghui Equipment Group Co., Ltd. Patentee after: Northwestern Polytechnical University Address before: 710072 Xi'an friendship West Road, Shaanxi, No. 127 Patentee before: Northwestern Polytechnical University |
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Granted publication date: 20120606 Termination date: 20180127 |