CN202178957U - Self-adaptive blockage-preventing control system for tangential-longitudinal-axial combined harvester - Google Patents
Self-adaptive blockage-preventing control system for tangential-longitudinal-axial combined harvester Download PDFInfo
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- CN202178957U CN202178957U CN2011201824585U CN201120182458U CN202178957U CN 202178957 U CN202178957 U CN 202178957U CN 2011201824585 U CN2011201824585 U CN 2011201824585U CN 201120182458 U CN201120182458 U CN 201120182458U CN 202178957 U CN202178957 U CN 202178957U
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Abstract
The utility model provides a self-adaptive blockage-preventing control system for a tangential-longitudinal-axial combined harvester. The self-adaptive blockage-preventing control system is mainly applied to a crop harvesting machine to solve the problems of material blockage and overloading of current tangential-longitudinal-axial combined harvesters during the crop harvesting process. Firstly, the working load of a tangential-longitudinal-axial threshing unit is detected by a host controller; during the threshing and separating process, the rotating speed and the torque of a tangential-flow roller and a longitudinal-axial-flow roller are detected by a detection sensor; the change deviation value is calculated and is compared with a standard value stored in advance; and the working parameters of a threshing and separating unit of the tangential-longitudinal-axial combined harvester are controlled according to the change of the rotating speed and the torque. The self-adaptive blockage-preventing control system of the utility model enhances the harvesting efficiency of the tangential-longitudinal-axial combined harvester, reduces the failure rate, saves the harvesting cost, significantly reduces the labor intensity, and is also suitable for combined harvesters of other kinds.
Description
Technical field
The utility model belongs to manufacturing and the control field in the agricultural machinery results, is specifically related to the self adaptation anti-clogging threshing separation control device of agricultural harvesting machinery when in the field crops being carried out threshing and separate.
Background technology
Agricultural machinery in the field during harvest operation working environment very abominable; The crop quality that threshing separates is various; In threshing course, exist material water ratio to differ the instability of big and feed quantity, often cause transshipping phenomenon, the moment of torsion of threshing cylinder and rotating speed sudden change are bigger; Cause the obstruction of threshing cylinder and more serious, also increased the results cost of crops the destruction of transmission device.At present, obstruction-proof method mainly leans on tractor driver's experience to realize the control to the material feed quantity in the results process, thereby avoids the clogging in the threshing course.Tractor driver's driving level is required height, and technical difficulty is big, and labour intensity is big, is difficult to reduce fault rate, and operating speed and operating efficiency are low.
In recent years along with the appearance of super high-yielding paddy rice, super hybridized rice; Its per unit area yield is high, growing way is close, the stem stalk is thick, the stalk leafiness is luxuriant, moisture content is high, connection power is big between paddy rice fringe head each several part, and the power of combined harvester, service behaviour, operating efficiency, reliability etc. have been proposed requirements at the higher level.Development along with modern agricultural technology; Control and harvesting efficiency to combined harvester are also had higher requirement; Only depend on manual work and experience often to be difficult to satisfy the intelligent development of harvest machinery; Adopt self adaptation anti-clogging Control System Design method to improving the results efficient of installed threshing separator, reduce the fault rate in the results process, it is most important to alleviate artificial labour intensity.At present China is cutting the self adaptation anti-clogging Control System Design method aspect the vertical stream combined harvester and is using and still do not have report.
Summary of the invention
The utility model technical problem to be solved is: overcome the weak point in the prior art, a kind of compact conformation is provided, method is easy, a kind of stream combined harvester self adaptation anti-clogging control system that indulges of cutting of easy operating.This technology is to solve the normal installed threshing separator that obstruction occurs of Artificial Control longitudinally axial flow threshing separation in the past.
The technical scheme that the utility model is taked is: in the threshing separation process; Detect the rotating speed and the torque value of cut flow roller and longitudinal axis stream roller by torque sensor; And be transferred in the console controller and analyze comparison with preset rotating speed and the torque value of test module; Calculate to change deviate, the comparison judged result of console controller is transferred to host display, running velocity executing agency, cylinder-concave clearance governor motion and voice guard; Show that by host display rotating speed, moment of torsion, power consumption and cylinder-concave clearance to cut flow roller and longitudinal axis stream roller show in real time; By running velocity executing agency the hydraulic continuously variable transmission of cutting vertical stream combined harvester is controlled, regulated the gait of march of combined harvester automatically; By the cylinder-concave clearance governor motion cut flow roller cylinder-concave clearance or longitudinal axis stream roller cylinder-concave clearance are regulated; Adopt voice broadcasting modes that the position and the parameter of fault existence are informed operating personnel by voice guard, stop up the overload phenomenon during the minimizing threshing separates thereby avoid cutting the material of vertical stream combined harvester in results crops process.
The concrete technical scheme of the utility model is to comprise console controller, host display, implementation controller, running velocity executing agency, cylinder-concave clearance governor motion, cut vertical flow threshing device, detecting sensor and voice guard; Cutting vertical flow threshing device comprises cut flow roller, cuts and flow concave grate, feeding-wheel, longitudinal axis stream concave grate and longitudinal axis stream roller; Implementation controller comprises cuts stream controller and longitudinal axis stream controller, and the cylinder-concave clearance governor motion comprises cuts stream cylinder-concave clearance governor motion and longitudinally axial flow threshing gap adjusting mechanism, and detecting sensor comprises cuts stream detecting sensor and longitudinal axis stream detecting sensor; Console controller links to each other with implementation controller with voice guard, host display, detecting sensor, running velocity executing agency respectively; Implementation controller links to each other with the cylinder-concave clearance governor motion; The cylinder-concave clearance governor motion is arranged on to be cut on the vertical flow threshing device; Cut vertical flow threshing device and link to each other with the cylinder-concave clearance governor motion, running velocity executing agency links to each other with the control device of cutting vertical stream combined harvester hydraulic continuously variable transmission; Console controller, host display and voice guard are installed in the driver's cabin of cutting vertical stream combined harvester, are convenient to operating personnel's observation, and detecting sensor is installed on the final drive shaft of cut flow roller and longitudinal axis stream roller.
It is following to cut the concrete steps of indulging the employing of stream combined harvester self adaptation anti-clogging control system:
1) console controller detects the cut flow roller of work and the load of longitudinal axis stream roller.
2) detecting sensor is obtained cut flow roller and the rotating speed and the torque value of longitudinal axis stream roller in the threshing course, and is transferred in the console controller and compares judgement with preset rotating speed and the torque value of test module, calculates the variation deviate.
3) if the rotation speed change deviate that console controller calculates standard value 30%～50% between or the change in torque deviate standard value 120%～150% between, the comparison judged result of console controller is transferred to host display and voice guard.
4) if the rotation speed change deviate of the calculating of console controller be lower than standard value 30% or the change in torque deviate value of being above standard 150%; The comparison judged result of console controller is transferred to implementation controller, and implementation controller is controlled the cylinder-concave clearance governor motion; The comparison judged result of console controller is transferred to host display, running velocity executing agency and voice guard.
The cylinder-concave clearance governor motion is to adopt stepper motor, electric power cylinder or hydraulic cylinder to regulate the relative position of cutting stream concave grate and cut flow roller, and the cylinder-concave clearance adjustable extent of cut flow roller is 10mm～50mm; The method that the cylinder-concave clearance governor motion is regulated the cylinder-concave clearance of longitudinal axis stream roller is to adopt stepper motor, electric power cylinder or hydraulic cylinder to regulate the relative position of longitudinal axis stream roller and longitudinal axis stream concave grate, and the cylinder-concave clearance adjustable extent of longitudinal axis stream roller is 20mm～60mm.
Cutting the stream detecting sensor is to be detected the rotating speed and the torque value of cut flow roller by torque sensor, torque rotary speed sensor, intelligent torquemeter or moment of torsion data collecting system; The detecting rotational speed scope is 0～1200r/min, and the measurement range of moment of torsion is-500 Nm～500Nm; The rotating speed of longitudinal axis stream detecting sensor test longitudinal axis stream roller and the method for moment of torsion are to be detected the rotating speed and the torque value of longitudinal axis stream roller by torque sensor, torque rotary speed sensor, intelligent torquemeter or moment of torsion data collecting system; The detecting rotational speed scope is 0～1000r/min, and the measurement range of moment of torsion is-1000 Nm～1000Nm.
Host display receives rotating speed, moment of torsion, power consumption and the cylinder-concave clearance of the cut flow roller of console controller transmission, the running velocity value of the rotating speed of longitudinal axis stream roller, moment of torsion, power consumption and cylinder-concave clearance and running velocity actuating mechanism controls, and show in real time; Running velocity executing agency receives the gait of march value of console controller, and the hydraulic continuously variable transmission of cutting vertical stream combined harvester is controlled, and regulates the gait of march of combined harvester automatically; Fault alarm method is the alarm signal that voice guard receives console controller, and with voice broadcasting modes position and parameter that fault exists is informed operating personnel.
Torque sensor obtains rotating speed and the torque value that the rotating speed of cutting each workpiece on the vertical flow threshing device and torque value and test module preset and compares judgement; Adopt method of least squares that the Changing Pattern value is carried out curve fitting rotating speed that calculates and torque change rule value respectively, obtain the deviate of the change curve and the said change curve of rotating speed and torque value according to curve-fitting results; Changing deviate comparative standard value with the calculating of console controller is to measure through bench test cutting on the vertical flow threshing device testing stand, and the structure and parameter of cutting vertical flow threshing device testing stand during test cuts with corresponding that to indulge the structure and parameter that flows sheller unit on the combine identical.
Console controller comprises industrial computer, data acquisition card and TT&C software, and the TT&C software system adopts VC++ to write, and the data acquisition card sample frequency is 1kHz; The torque accuracy of detecting sensor is less than 0.1%FS, and rotational speed output signal is 900～2000 pulse/commentaries on classics, and the output frequency signal amplitude is 0～5V level square-wave signal, and moment of torsion frequency output area is 5～15kHZ.
The beneficial effect of the utility model is; Cut the vertical combined harvester self adaptation anti-clogging control system that flows and to improve the automaticity of cutting vertical stream combined harvester; Practice thrift manual work, alleviate artificial labour intensity, improve the existing vertical results efficient that flows combined harvester of cutting; Reduce the fault rate in the results process; Avoid in threshing course owing to material water ratio differs the overload phenomenon that instability big and feed quantity causes, the obstruction of the moment of torsion of threshing cylinder and the sudden change of rotating speed and threshing cylinder and to the destruction of transmission device greatly reduces the results cost of crops.
Description of drawings
Fig. 1 cuts vertical stream combined harvester self adaptation anti-clogging control system architecture annexation sketch map.
Fig. 2 cuts vertical stream combined harvester installed threshing separator sketch map.
Fig. 3 cuts vertical stream combined harvester self adaptation anti-clogging control system feedback control block diagram.
Fig. 4 cuts the anti-clogging of vertical stream combined harvester self adaptation to control system's operational flowchart.
Among the figure, 1. console controller, 2. host display, 3. implementation controller; 301. cut stream controller, 302. longitudinal axis stream controllers, 4. running velocity executing agency, 5. cylinder-concave clearance governor motion; 501. cut stream cylinder-concave clearance governor motion, 502. longitudinally axial flow threshing gap adjusting mechanisms are 6. cut vertical flow threshing device, 601. cut flow roller; 602. cut the stream concave grate, 603. feeding-wheels, 604. longitudinal axis stream concave grate, 605. longitudinal axis stream rollers; 7. detecting sensor, 701. cut the stream detecting sensor, 702. longitudinal axis stream detecting sensor, 8. voice guard.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done further explain.
A kind of cutting indulged stream combined harvester self adaptation anti-clogging control system, comprises console controller 1, host display 2, implementation controller 3, running velocity executing agency 4, cylinder-concave clearance governor motion 5, cuts vertical flow threshing device 6, detecting sensor 7, voice guard 8.
As shown in Figure 1; Console controller 1 links to each other with voice guard 8, host display 2, detecting sensor 7, running velocity executing agency 9 and implementation controller 3 respectively; Implementation controller 3 links to each other with cylinder-concave clearance governor motion 5; Cut vertical flow threshing device 6 and link to each other with cylinder-concave clearance governor motion 5, running velocity executing agency 4 links to each other with the control device of cutting vertical stream combined harvester hydraulic continuously variable transmission; Console controller 1, host display 2 and voice guard 8 are installed in the driver's cabin of cutting vertical stream combined harvester.
As shown in Figure 2; Cutting vertical flow threshing device 6 comprises cut flow roller 601, cuts and flow concave grate 602, feeding-wheel 603, longitudinal axis stream concave grate 604 and longitudinal axis stream roller 605; Implementation controller 3 comprises cuts stream controller 301 and longitudinal axis stream controller 302; Cylinder-concave clearance governor motion 5 comprises cuts stream cylinder-concave clearance governor motion 501 and longitudinally axial flow threshing gap adjusting mechanism 502, and detecting sensor 7 comprises cuts stream detecting sensor 701 and longitudinal axis stream detecting sensor 702; Cut stream detecting sensor 701 and be installed on the final drive shaft of cut flow roller 601, longitudinal axis stream detecting sensor 702 is installed on the final drive shaft of longitudinal axis stream roller 605; At first undertaken just taking off by cut flow roller 601 after agricultural material gets into, carry out initial gross separation by cutting stream concave grate 602, material feeds longitudinal axis stream roller 605 and takes off again under the auxiliary feeding of feeding-wheel 603, separated once more by longitudinal axis stream concave grate 604.
Like Fig. 3 and shown in Figure 4, a kind of feedback and operating process of indulging stream combined harvester self adaptation anti-clogging control system of cutting is:
Console controller 1 according to the test module preset value successively to longitudinal axis stream controller 302 with cut stream controller 301 and detect.
Cut stream controller 301 controls and cut stream cylinder-concave clearance governor motion 501; Cut flow roller 601 is carried out first taking off with the material of cutting 602 pairs of feedings of stream concave grate and is separated; By cutting rotating speed and the torque value that stream detecting sensor 701 is measured cut flow roller 601; And feed back in the console controller 1, console controller 1 rotating speed and the torque value that test module is preset compares calculating variation deviate with cutting stream detecting sensor 701 detected values; Control signal is sent to cuts stream controller 301; Regulate by cutting the cylinder-concave clearance that stream controller 301 control cuts 501 pairs of cut flow roller 601 of stream cylinder-concave clearance governor motion again, by console controller 1 control travel speed executing agency 4, thereby confirm to cut vertical stream combined harvester gait of march.
Longitudinal axis stream controller 302 control longitudinally axial flow threshing gap adjusting mechanisms 502; Material is by feeding-wheel 603 auxiliary feedings; Take off again by longitudinal axis stream roller 605 and longitudinal axis stream concave grate 604 and to separate, measure the rotating speed and the torque value of longitudinal axis stream rollers 605 by longitudinal axis stream detecting sensor 702, and feed back in the console controller 1; Rotating speed that console controller 1 is preset with test module and torque value and longitudinal axis stream detecting sensor 702 detected values compare, and calculate to change deviate; Control signal is sent to cuts stream controller 301 and longitudinal axis stream controller 302; Regulate by the cylinder-concave clearance of 502 pairs of longitudinal axis stream rollers 605 of longitudinal axis stream controller 302 control longitudinally axial flow threshing gap adjusting mechanisms again; Cut stream cylinder-concave clearance governor motion 501 by cutting stream controller 301 controls; By master controller 1 control travel speed executing agency 4, thus confirm to cut vertical stream combined harvester gait of march.
The practical implementation process that this model is a kind of cuts vertical stream combined harvester self adaptation anti-clogging control system does, console controller 1 detects the cut flow roller 601 that starts and the load of longitudinal axis stream roller 605 successively; Detecting sensor 7 is obtained cut flow roller 601 and the rotating speed and the torque value of longitudinal axis stream roller 605 in the threshing course, and is transferred in the console controller 1 and compares judgement with preset rotating speed and the torque value of test module, calculates the variation deviate; If the rotation speed change deviate that console controller 1 calculates standard value 30%～50% between or the change in torque deviate standard value 120%～150% between, the comparison judged result of console controller 1 is transferred to host display 2 and voice guard 8; If the rotation speed change deviate of the calculating of console controller 1 be lower than standard value 30% or the change in torque deviate value of being above standard 150%; The comparison judged result of console controller 1 is transferred to implementation controller 3, and 3 pairs of cylinder-concave clearance governor motions 5 of implementation controller are controlled; The comparison judged result of console controller 1 is transferred to host display 2, running velocity executing agency 9 and voice guard 8; Show that by host display 2 rotating speed, moment of torsion, power consumption and cylinder-concave clearance to cut flow roller 601 and longitudinal axis stream roller 605 show in real time; Cut the hydraulic continuously variable transmission of vertical stream combined harvester by 4 pairs of running velocity executing agencies and control, regulate the gait of march of combined harvester automatically; Regulate by 5 pairs of cut flow roller 604 cylinder-concave clearances of cylinder-concave clearance governor motion or longitudinal axis stream roller 605 cylinder-concave clearances; Adopt voice broadcasting modes that position and parameter that fault exists are informed operating personnel by voice guard 8.
Claims (6)
1. cut the vertical combined harvester self adaptation anti-clogging control system that flows for one kind; It is characterized in that; Comprise console controller (1), host display (2), implementation controller (3), running velocity executing agency (4), cylinder-concave clearance governor motion (5), cut vertical flow threshing device (6), detecting sensor (7) and voice guard (8); Cut vertical flow threshing device (6) and comprise cut flow roller (601), cut and flow concave grate (602), feeding-wheel (603), longitudinal axis stream concave grate (604) and longitudinal axis stream roller (605), implementation controller (3) comprises cuts stream controller (301) and longitudinal axis stream controller (302); Cylinder-concave clearance governor motion (5) comprises cuts stream cylinder-concave clearance governor motion (501) and longitudinally axial flow threshing gap adjusting mechanism (502); Detecting sensor (7) comprises cuts stream detecting sensor (701) and longitudinal axis stream detecting sensor (702); Said console controller (1) links to each other with voice guard (8), host display (2), detecting sensor (7), running velocity executing agency (9) and implementation controller (3) respectively; Said implementation controller (3) links to each other with cylinder-concave clearance governor motion (5), and cylinder-concave clearance governor motion (5) is arranged on to be cut on the vertical flow threshing device (6); Running velocity executing agency (4) links to each other with the control device of the hydraulic continuously variable transmission of cutting vertical stream combined harvester; Console controller (1), host display (2) and voice guard (8) are installed in the driver's cabin of cutting vertical stream combined harvester; Cut stream detecting sensor (701) and be installed on the final drive shaft of cut flow roller (601), longitudinal axis stream detecting sensor (702) is installed on the final drive shaft of longitudinal axis stream roller (605).
2. according to the said stream combined harvester self adaptation anti-clogging control system that indulges of cutting of claim 1; It is characterized in that: cylinder-concave clearance governor motion (5) is to adopt stepper motor, electric power cylinder or hydraulic cylinder to regulate the relative position of cutting stream concave grate (602) and cut flow roller (601), and the cylinder-concave clearance adjustable range of cut flow roller (601) is 10mm～50mm; Cylinder-concave clearance governor motion (5) is to adopt stepper motor, electric power cylinder or hydraulic cylinder to regulate the relative position of longitudinal axis stream roller (605) and longitudinal axis stream concave grate (604), and the cylinder-concave clearance adjustable range of longitudinal axis stream roller (605) is 20mm～60mm.
3. according to claim 1 or the 2 said stream combined harvester self adaptation anti-clogging control systems that indulge of cutting; It is characterized in that: cutting stream detecting sensor (701) is rotating speed and the torque value that is detected cut flow roller (601) by torque sensor, torque rotary speed sensor, intelligent torquemeter or moment of torsion data collecting system; The detecting rotational speed scope is 0～1200r/min, and the measurement range of moment of torsion is-500Nm～500Nm; Longitudinal axis stream detecting sensor (702) is to be detected the rotating speed and the torque value of longitudinal axis stream roller (605) by torque sensor, torque rotary speed sensor, intelligent torquemeter or moment of torsion data collecting system; The detecting rotational speed scope is 0～1000r/min, and the measurement range of moment of torsion is-1000Nm～1000Nm.
4. according to claim 1 or the 2 said stream combined harvester self adaptation anti-clogging control systems that indulge of cutting; It is characterized in that: host display (2) receives rotating speed, moment of torsion, power consumption and the cylinder-concave clearance of the cut flow roller (601) of console controller (1) transmission; The running velocity value of rotating speed, moment of torsion, power consumption and the cylinder-concave clearance of longitudinal axis stream roller (605) and running velocity executing agency (9) control, and show in real time.
5. according to claim 1 or the 2 said stream combined harvester self adaptation anti-clogging control systems that indulge of cutting; It is characterized in that: console controller (1) comprises industrial computer; Data acquisition card and TT&C software, the TT&C software system adopts VC++ to write, and the data acquisition card sample frequency is 1kHz.
6. according to claim 1 or the 2 said stream combined harvester self adaptation anti-clogging control systems that indulge of cutting; It is characterized in that: the torque accuracy of detecting sensor (7) is less than 0.1%FS; Rotational speed output signal is 900～2000 pulse/commentaries on classics; The output frequency signal amplitude is 0～5V level square-wave signal, and moment of torsion frequency output area is 5～15kHZ.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201824585U CN202178957U (en) | 2011-06-01 | 2011-06-01 | Self-adaptive blockage-preventing control system for tangential-longitudinal-axial combined harvester |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011201824585U CN202178957U (en) | 2011-06-01 | 2011-06-01 | Self-adaptive blockage-preventing control system for tangential-longitudinal-axial combined harvester |
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| CN202178957U true CN202178957U (en) | 2012-04-04 |
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| CN2011201824585U Expired - Lifetime CN202178957U (en) | 2011-06-01 | 2011-06-01 | Self-adaptive blockage-preventing control system for tangential-longitudinal-axial combined harvester |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102273359A (en) * | 2011-06-01 | 2011-12-14 | 江苏大学 | Self-adaptive anti-blocking control system and control method for tangential and longitudinal flow combine harvester |
| CN103270842A (en) * | 2013-05-24 | 2013-09-04 | 湖州思达机械制造有限公司 | Intelligent control system of harvester |
| WO2018053897A1 (en) * | 2016-09-26 | 2018-03-29 | 江苏大学 | Combine harvester capable of adaptive adjustment, and adaptive adjustment method |
| CN110881304A (en) * | 2019-11-13 | 2020-03-17 | 青岛农业大学 | Anti-blocking control method of peanut picking harvester |
| CN110881305A (en) * | 2019-11-13 | 2020-03-17 | 青岛农业大学 | Self-adaptive control method of peanut harvester |
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2011
- 2011-06-01 CN CN2011201824585U patent/CN202178957U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102273359A (en) * | 2011-06-01 | 2011-12-14 | 江苏大学 | Self-adaptive anti-blocking control system and control method for tangential and longitudinal flow combine harvester |
| CN102273359B (en) * | 2011-06-01 | 2014-05-28 | 江苏大学 | Self-adaptive anti-blocking control system and control method for tangential and longitudinal flow combine harvester |
| CN103270842A (en) * | 2013-05-24 | 2013-09-04 | 湖州思达机械制造有限公司 | Intelligent control system of harvester |
| WO2018053897A1 (en) * | 2016-09-26 | 2018-03-29 | 江苏大学 | Combine harvester capable of adaptive adjustment, and adaptive adjustment method |
| CN110881304A (en) * | 2019-11-13 | 2020-03-17 | 青岛农业大学 | Anti-blocking control method of peanut picking harvester |
| CN110881305A (en) * | 2019-11-13 | 2020-03-17 | 青岛农业大学 | Self-adaptive control method of peanut harvester |
| CN110881304B (en) * | 2019-11-13 | 2021-04-13 | 青岛农业大学 | Anti-blocking control method of peanut picking harvester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wuxi Combine Harvester Co.,Ltd. Assignor: Jiangsu University Contract record no.: 2013320000134 Denomination of utility model: Self-adaptive anti-blocking control system and control method for tangential and longitudinal flow combine harvester Granted publication date: 20120404 License type: Exclusive License Record date: 20130318 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120404 Effective date of abandoning: 20140528 |
|
| RGAV | Abandon patent right to avoid regrant |