CN101216379A - Stalk cutting test device and method - Google Patents
Stalk cutting test device and method Download PDFInfo
- Publication number
- CN101216379A CN101216379A CNA2007101923983A CN200710192398A CN101216379A CN 101216379 A CN101216379 A CN 101216379A CN A2007101923983 A CNA2007101923983 A CN A2007101923983A CN 200710192398 A CN200710192398 A CN 200710192398A CN 101216379 A CN101216379 A CN 101216379A
- Authority
- CN
- China
- Prior art keywords
- cutter
- stem stalk
- stalk
- speed
- conveying belt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a test device for simulating indoor cutting of crop stalk and a test method thereof. The device comprises a stalk clamping device arranged on a conveying device, a grain pulling device on the stalk clamping device, a cutting device connected with a blade driving mechanism and arranged on one side of the stalk clamping device, a rotation speed sensor arranged on the drum shaft end of a conveying belt, a torque sensor arranged on a power input shaft, a pressure sensor arranged at the joint of the blade of the cutting device and a rocker connection rod. The cutting test can be conducted by collecting, recording and displaying data collected by the rotation speed sensor, the pressure sensor and the torque sensor by a test control system of a computer. The device has simple and reasonable structure and stable and reliable operation method, thus radically solving problems of the prior stalk cutting test such as parameter adjustment and realtime sampling and processing of test data.
Description
Technical field
The present invention relates to a kind of cutting test device and test method thereof that is used for crops stem stalk, be used in the cutting process of lab simulation field crop stems such as paddy rice, rape, wheat, soybean, corn, sugarcanes.
Background technology
The research to the harvest machinery header parts of crops at present improves, and comprises that mainly cutter, the structural parameters of dialling the standing grain device and kinematic parameter change the rule that influences to the ceding of Taiwan.But the influence that agriculture field test is changed by each parameter of weather, field situation and machine.The variation range of the cutter of header part, the structural parameters of dialling the standing grain device and kinematic parameter is little, and real-time signal acquisition and processing are very difficult.The quality and the cutting speed size of the cutting performance of cutter part are closely related, the big more performance of cutting speed is good more, and along with the increase of cutting speed, the cutting resistance also decreases, but ceding of Taiwan vibrations aggravation and increase power consumption, therebetween influence each other rule and optimal parameter combination are difficult to determine.Dial standing grain device part winder up and down before and after the variation of relative position and the loss percentage of different speed ratio condition lower cutting tables be difficult for accurately measuring.Be badly in need of a kind of novel test device of design and solve existing problem, and also do not retrieve relevant therewith documents and materials at present.
Summary of the invention
The present invention overcomes the defective that prior art exists, provide a kind of can be in indoor device and test method thereof of carrying out stem stalk cutting test.
The technical scheme that apparatus of the present invention adopt is: comprise the stem stalk clamping device that is installed on the conveying device, a side that is installed in stem stalk clamping device after group standing grain device, cutter sweep connection cutter driving mechanism are installed in stem stalk clamping device top, described conveying device comprises that drive motor connects the conveying belt of adjustable speed, is installed in speed probe the cylinder axle head of conveying belt; But described stem stalk clamping device comprises the stem stalk clamper of the clamping crops stem stalk that is fixed on the conveying belt; Described cutter sweep comprises the power input shaft that connects drive motor, mounting torque sensor on power input shaft, power input shaft connects an end of rocker-arm link; the other end of rocker-arm link is connected on the double-deck detachable reciprocating cutter, in the cutter and the rocker-arm link connection of cutter a pressure transducer is installed; Described group of standing grain device comprises that cam-action reel is fixed on the frame by elevating lever, on the wheel face of cam-action reel, speed probe is installed, at uniform several rice-pulling tooths in the wheel edge of cam-action reel, make rice-pulling tooth near the stem stalk on the stem stalk clamper, on the belt pulley of drive motor through being connected to cam-action reel after the kinematic train; Described speed probe, pressure transducer, torque sensor are connected respectively to computing machine, can monitor and control by the control stand of installing on computers.
The technical scheme that the inventive method adopts in turn includes the following steps
A, will test crops according to required line-spacing and spacing in the rows insert row on clamping hole, conveying belt is forwarded to from cutter at a distance so that obtain steady speed during cutting; Control the position of the relative cutter of winder by regulating elevating lever;
B, startup drive motor; Carry out the parameter setting by computing machine, regulate the frequency of cutter, regulate the rotating speed of winder and the speed of conveying belt; Open the speed switch of cutter and winder successively by control stand, this moment, frequency, the rotating speed of winder and the velocity information of conveying belt of cutter directly were recorded in the computing machine;
C, the TT﹠C system collection that utilizes computing machine, record and the demonstration data that speed probe, pressure transducer, torque sensor collected are carried out cutting test;
D, close the speed switch of cutter and winder, closing information is gathered switch, and TT﹠C system writes down and preserve whole process testing data automatically, finishes cutting test;
Stem stalk cutter sweep advantages of simple provided by the present invention, method of operating is reliable and stable, solved the limitation that field test is influenced by external factor, can regulate with different parameters test parameters and make up, data in the process of the test can be sampled automatically, automatically control and processing, can study its different structure parameter and performance, can finish different cultivars, the different water cut rate, different feeding speed, different cutting mode (cutting frequencies, cutting angle, cutting quantity etc.), fundamentally solved the real-time sampling of present stem stalk cutting test parameter regulation and test figure with different tests of dialling under the standing grain device parameter, the problem of handling.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the vertical view of the cutter sweep among Fig. 1;
Fig. 3 is the front view of Fig. 2.
Fig. 4 is the conveying device front view among Fig. 1.
Fig. 5 is the vertical view of Fig. 4.
Fig. 6 is the vertical view of stem stalk clamping device among Fig. 1.
Among the figure: 1, conveying belt, 2, stem stalk clamping device, 3, speed probe, 4, pressure transducer, 5, rice-pulling tooth, 6, cam-action reel, 7, speed probe, 8, rocker-arm link, 9, cutter, 10, frame, 11, motor, 12, torque sensor, 13, kinematic train, 14, the winder elevating lever, 15, computing machine, 16, control stand, 17, lower floor's cutter, 18, cutter power input shaft, 19, the cane clamping hole, 20, fishbolt.
Embodiment
Be the stalk cutting test device structural drawing as shown in Figure 1, mainly comprise conveying device, cutter sweep, dial standing grain device and monitor control system.Conveying device comprises that drive motor 11 connects the conveying belt 1 of adjustable speed, is installed in speed probe 3 the cylinder axle head of conveying belt 1.As Fig. 4,5, shown in 6, but be fixed on the stem stalk clamper 2 of the clamping crops stem stalk on the conveying belt 1, mainly form by stem stalk clamping hole 19 and fishbolt 20, crops stem stalk is by a line spacing, the size of spacing in the rows is put in the stem stalk clamping hole 19, stem stalk clamper 2 is fixed on the conveying belt 1 by fishbolt 20, can regulate stem stalk clamping device 2 to reach required spacing in the rows and line-spacing requirement according to the spacing in the rows and the line-spacing of Different Crop during test, and can select the stem stalk clamping device 2 of different stem stalk clamping holes 19 according to the stem stalk diameter difference of Different Crop, thereby satisfy the test needs of different stem stalk cuttings.
As shown in Figure 1, 2, 3, cutter sweep comprises the power input shaft 18 that connects drive motor 11, mounting torque sensor 12 on power input shaft 18, power input shaft 18 connects an end of rocker-arm link 8; other end of rocker-arm link 8 is connected on the double-deck detachable reciprocating cutter 9,17, in the cutter and rocker-arm link 8 connections of cutter a pressure transducer 4 is installed.Can select to use double-cutting knife or individual layer cutter simultaneously according to the test needs during work, promptly cutter 9,17 can only be installed one, the cutting frequency scope can 300～800 rev/mins adjustable, adjustable in cutting angle 0～15 scope, swath is 900mm.Pressure transducer 4 is measured the size of cutting force in real time.Torque sensor 1 is measured the size variation of moment of torsion in real time.Because the velocity simulate of the relative cutter sweep of conveying device is the pace of field machine, so the transmission speed of conveying belt 1 is adjustable, and the speed range of adjustment is 0～2m/s under the drive of motor 11.
As shown in Figure 1, dial the standing grain device and comprise that cam-action reel 6 is fixed on the frame 10 by elevating lever 14, the length of elevating lever 14 can be regulated, speed probe 7 is installed on the wheel face of cam-action reel 6, uniform several rice-pulling tooths 5 at the wheel edge of cam-action reel 6, make rice-pulling tooth 5 near the stem stalk on the stem stalk clamper 2, drive motor 11 is through being connected to after the kinematic train 13 on the belt pulley of cam-action reel 6, can regulate elevating lever 14 reaching required test condition according to the differing heights of crop, and the velocity ratio of winder 6 rotating speeds and conveying belt 1 can be regulated by the stepless change of transfer system 13.
During test, with the test crops according to required line-spacing and spacing in the rows insert row on clamping hole 19, conveying belt 1 is forwarded to from cutter 9 at a distance so that obtain steady speed during cutting; Control the position of winder 6 relative cutters 9,17 by regulating elevating lever 14.Power-on is checked and is detected the control system circuit, guarantees in good condition; Then TT﹠C system is carried out the parameter setting, cutter 9 frequencies are transferred to required frequency, and regulate winder 6 rotating speeds and conveying belt 1 speed to required size; Open cutter and winder speed switch successively, information such as cutter 9 frequencies, winder 6 rotating speeds, conveying belt 1 speed directly are recorded in the computing machine.In operational process, utilize the TT﹠C system collection, record of computing machine 15 and show that the data that speed probe 3,7, pressure transducer 4, torque sensor 12 are collected carry out cutting test when carrying out cutting test.Close cutter and winder speed switch during off-test, and closing information gathers switch, the whole process testing data of the automatic recorded and stored of TT﹠C system reach the purpose of cutting test.
Claims (5)
1. stalk cutting test device, comprise the stem stalk clamping device that is installed on the conveying device, a side that after group standing grain device, cutter sweep connection cutter driving mechanism are installed in stem stalk clamping device top, is installed in stem stalk clamping device, it is characterized in that: described conveying device comprises that drive motor (11) connects the conveying belt (1) of adjustable speed, is installed in speed probe (3) the cylinder axle head of conveying belt (1); Described stem stalk clamping device comprise be fixed on conveying belt (1) but on the stem stalk clamper (2) of clamping crops stem stalk; Described cutter sweep comprises the power input shaft (18) of connection drive motor (11), mounting torque sensor (12) on power input shaft (18), power input shaft (18) connects an end of rocker-arm link (8); the other end of rocker-arm link (8) is connected on the double-deck detachable reciprocating cutter (9,17), in the cutter and rocker-arm link (8) connection of cutter a pressure transducer (4) is installed; Described group of standing grain device comprises that cam-action reel (6) is fixed on the frame (10) by elevating lever (14), speed probe (7) is installed on the wheel face of cam-action reel (6), at uniform several rice-pulling tooths in the wheel edge of cam-action reel (6) (5), make rice-pulling tooth (5) near the stem stalk on the stem stalk clamper (2), drive motor (11) is connected on the belt pulley of cam-action reel (6) after kinematic train (13); Described speed probe (3,7), pressure transducer (4), torque sensor (12) are connected respectively to computing machine (15), can monitor and control by the control stand (16) that is installed on the computing machine (15).
2. stalk cutting test device according to claim 1 is characterized in that, upper strata cutter (9) and lower floor's cutter (17) can only be installed one.
3. stalk cutting test device according to claim 1, it is characterized in that, crops stem stalk is put in the clamping hole (19) of stem stalk clamper (2) by the size of a line spacing, spacing in the rows, and stem stalk clamper (2) is fixed on the conveying belt (1) by fishbolt (20).
4. in the stalk cutting test device according to claim 1, it is characterized in that the length scalable of elevating lever (14).
5. stem stalk cutting test method is characterized in that in turn including the following steps:
A, will test crops according to required line-spacing and spacing in the rows insert row on clamping hole (19), conveying belt (1) is forwarded to from cutter (9) at a distance so that obtain steady speed during cutting; Control winder (6) position of cutter (9,17) relatively by regulating elevating lever (14);
B, startup drive motor (11); Carry out the parameter setting by computing machine (15), regulate the frequency of cutter (9,17), regulate the rotating speed of winder (6) and the speed of conveying belt (1); Open cutter (9,17) successively by control stand (16)) and the speed switch of winder (6), frequency, the rotating speed of winder (6) and the velocity information of conveying belt (1) of cutter this moment (9,17) directly are recorded in the computing machine (15);
The data that c, the TT﹠C system collection that utilizes computing machine (15), record and demonstration speed probe (3,7), pressure transducer (4), torque sensor (12) are collected are carried out cutting test;
D, close the speed switch of cutter (9,17) and winder (6), closing information is gathered switch, and the TT﹠C system of computing machine (15) writes down and preserve whole process testing data automatically, finishes cutting test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101923983A CN100514029C (en) | 2007-12-26 | 2007-12-26 | Stalk cutting test device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101923983A CN100514029C (en) | 2007-12-26 | 2007-12-26 | Stalk cutting test device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101216379A true CN101216379A (en) | 2008-07-09 |
| CN100514029C CN100514029C (en) | 2009-07-15 |
Family
ID=39622857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101923983A Expired - Fee Related CN100514029C (en) | 2007-12-26 | 2007-12-26 | Stalk cutting test device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100514029C (en) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101625297B (en) * | 2009-08-07 | 2011-09-07 | 西安工程大学 | Method for detecting cutting performance of textile material |
| CN102768495A (en) * | 2012-07-04 | 2012-11-07 | 广西大学 | Dynamic real-time cutting depth control method based on load of sugarcane harvesting mechanical cutterhead |
| CN102914444A (en) * | 2012-10-26 | 2013-02-06 | 苏州劲翔电子科技有限公司 | Integrated tester of handheld brush cutter |
| CN103098604A (en) * | 2013-01-21 | 2013-05-15 | 农业部南京农业机械化研究所 | Reciprocating double moving cutter cutting test device |
| CN103416162A (en) * | 2013-07-10 | 2013-12-04 | 江苏大学 | Adjustable reel device |
| CN103837355A (en) * | 2012-11-26 | 2014-06-04 | 甘肃农业大学 | Cutter performance test bench |
| CN104813802A (en) * | 2015-04-29 | 2015-08-05 | 广西大学 | Clamping mechanism of sugarcane feeding cutting experimental device for sugarcane harvester |
| CN105675287A (en) * | 2016-03-30 | 2016-06-15 | 农业部南京农业机械化研究所 | Multi-cutting platform stalk crop cutting test device |
| CN106198290A (en) * | 2016-08-31 | 2016-12-07 | 海宁市新艺机电有限公司 | A kind of Apparatus and method for detecting rotary shaver sharpness |
| CN107046934A (en) * | 2017-04-21 | 2017-08-18 | 伍崇德 | Sugar-cane cutting machine cutter device |
| CN107167331A (en) * | 2017-06-13 | 2017-09-15 | 农业部南京农业机械化研究所 | A kind of adjustable stalk crop cutting test platform of blade spacing |
| CN107515130A (en) * | 2017-08-30 | 2017-12-26 | 西南大学 | A kind of rotary cutting test equipment |
| CN108112360A (en) * | 2017-12-04 | 2018-06-05 | 郭世斌 | A kind of herding herbage processing equipment |
| CN108318265A (en) * | 2017-12-25 | 2018-07-24 | 佳木斯市质量技术监督检验检测中心 | Corn harvesting bench fatigue test board |
| CN108593326A (en) * | 2018-06-13 | 2018-09-28 | 华中农业大学 | A kind of sun flower combine-harvester ceding of Taiwan test-bed |
| CN108718671A (en) * | 2018-06-13 | 2018-11-02 | 华中农业大学 | It is a kind of to be used for the multifunctional test bed of rice-pulling chain formula sunflower ceding of Taiwan test |
| CN109699321A (en) * | 2019-03-13 | 2019-05-03 | 农业农村部南京农业机械化研究所 | Cut stalk testing stand |
| CN111351676A (en) * | 2020-04-02 | 2020-06-30 | 山东省农业机械科学研究院 | Potato crop stem harvesting test device |
| CN111781000A (en) * | 2020-04-02 | 2020-10-16 | 山东省农业机械科学研究院 | Test device for conveying and cutting rhizomatic crop stalks |
| CN111802082A (en) * | 2019-04-11 | 2020-10-23 | 农业农村部南京农业机械化研究所 | Straw picking and cutting test bed |
| CN113196951A (en) * | 2021-05-06 | 2021-08-03 | 山东省农业机械科学研究院 | Crop stem conveying device for test bed |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU968671A1 (en) * | 1981-05-29 | 1982-10-23 | Kalinin Sergej G | Stand for testing haulm removing apparatus of beet harvesters |
-
2007
- 2007-12-26 CN CNB2007101923983A patent/CN100514029C/en not_active Expired - Fee Related
Cited By (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101625297B (en) * | 2009-08-07 | 2011-09-07 | 西安工程大学 | Method for detecting cutting performance of textile material |
| CN102768495B (en) * | 2012-07-04 | 2014-12-10 | 广西大学 | Dynamic real-time cutting depth control method based on load of sugarcane harvesting mechanical cutterhead |
| CN102768495A (en) * | 2012-07-04 | 2012-11-07 | 广西大学 | Dynamic real-time cutting depth control method based on load of sugarcane harvesting mechanical cutterhead |
| CN102914444A (en) * | 2012-10-26 | 2013-02-06 | 苏州劲翔电子科技有限公司 | Integrated tester of handheld brush cutter |
| CN102914444B (en) * | 2012-10-26 | 2015-04-29 | 苏州劲翔电子科技有限公司 | Integrated tester of handheld brush cutter |
| CN103837355A (en) * | 2012-11-26 | 2014-06-04 | 甘肃农业大学 | Cutter performance test bench |
| CN103098604A (en) * | 2013-01-21 | 2013-05-15 | 农业部南京农业机械化研究所 | Reciprocating double moving cutter cutting test device |
| CN103098604B (en) * | 2013-01-21 | 2015-03-18 | 农业部南京农业机械化研究所 | Reciprocating double moving cutter cutting test device |
| CN103416162A (en) * | 2013-07-10 | 2013-12-04 | 江苏大学 | Adjustable reel device |
| CN103416162B (en) * | 2013-07-10 | 2015-09-02 | 江苏大学 | A kind of adjustable reel device |
| CN104813802A (en) * | 2015-04-29 | 2015-08-05 | 广西大学 | Clamping mechanism of sugarcane feeding cutting experimental device for sugarcane harvester |
| CN105675287A (en) * | 2016-03-30 | 2016-06-15 | 农业部南京农业机械化研究所 | Multi-cutting platform stalk crop cutting test device |
| CN105675287B (en) * | 2016-03-30 | 2018-03-02 | 农业部南京农业机械化研究所 | A kind of more Cutting platform stalk crop cutting test devices |
| CN106198290A (en) * | 2016-08-31 | 2016-12-07 | 海宁市新艺机电有限公司 | A kind of Apparatus and method for detecting rotary shaver sharpness |
| CN107046934A (en) * | 2017-04-21 | 2017-08-18 | 伍崇德 | Sugar-cane cutting machine cutter device |
| CN107167331A (en) * | 2017-06-13 | 2017-09-15 | 农业部南京农业机械化研究所 | A kind of adjustable stalk crop cutting test platform of blade spacing |
| CN107167331B (en) * | 2017-06-13 | 2023-12-19 | 东南大学 | Blade interval adjustable stem crop cutting test bench |
| CN107515130B (en) * | 2017-08-30 | 2020-05-22 | 西南大学 | Rotation type cutting test equipment |
| CN107515130A (en) * | 2017-08-30 | 2017-12-26 | 西南大学 | A kind of rotary cutting test equipment |
| CN108112360A (en) * | 2017-12-04 | 2018-06-05 | 郭世斌 | A kind of herding herbage processing equipment |
| CN108318265A (en) * | 2017-12-25 | 2018-07-24 | 佳木斯市质量技术监督检验检测中心 | Corn harvesting bench fatigue test board |
| CN108593326A (en) * | 2018-06-13 | 2018-09-28 | 华中农业大学 | A kind of sun flower combine-harvester ceding of Taiwan test-bed |
| CN108718671A (en) * | 2018-06-13 | 2018-11-02 | 华中农业大学 | It is a kind of to be used for the multifunctional test bed of rice-pulling chain formula sunflower ceding of Taiwan test |
| CN109699321A (en) * | 2019-03-13 | 2019-05-03 | 农业农村部南京农业机械化研究所 | Cut stalk testing stand |
| CN109699321B (en) * | 2019-03-13 | 2020-11-20 | 农业农村部南京农业机械化研究所 | Test bed for cutting straws |
| CN111802082A (en) * | 2019-04-11 | 2020-10-23 | 农业农村部南京农业机械化研究所 | Straw picking and cutting test bed |
| CN111802082B (en) * | 2019-04-11 | 2021-08-06 | 农业农村部南京农业机械化研究所 | Straw picking and cutting test bed |
| CN111351676A (en) * | 2020-04-02 | 2020-06-30 | 山东省农业机械科学研究院 | Potato crop stem harvesting test device |
| CN111781000A (en) * | 2020-04-02 | 2020-10-16 | 山东省农业机械科学研究院 | Test device for conveying and cutting rhizomatic crop stalks |
| CN113196951A (en) * | 2021-05-06 | 2021-08-03 | 山东省农业机械科学研究院 | Crop stem conveying device for test bed |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100514029C (en) | 2009-07-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100514029C (en) | Stalk cutting test device and method | |
| CN101608979B (en) | Longitudinal axial flow threshing and cleaning testing device | |
| CA2738926C (en) | Correlating push force and stalk vibration to a plant's susceptibility to root lodging | |
| CN202177520U (en) | Single stem cutting test device | |
| CN105612922B (en) | Cut quality appraisal procedure and device based on the vibration of cane harvesting machine cutterhead | |
| CN104982149B (en) | Intelligent control device and control method of guide plate of combined harvester | |
| CN102221505A (en) | Disc-type stalk cutting test device and test method thereof | |
| CN106525605B (en) | It is a kind of for measuring the device and method of crop lodging resistance | |
| CN104782318A (en) | Test system and method for testing field performance of combine harvester | |
| CN111351676A (en) | Potato crop stem harvesting test device | |
| CN102967354A (en) | Detecting device and detecting method for crop biomass | |
| CN106441971A (en) | Harvester threshing performance detecting device and detecting method | |
| CN111264171A (en) | Crop stem multifunctional reciprocating type cutting test device | |
| CN111398187B (en) | Rape harvest time monitoring method and system based on hyperspectral remote sensing | |
| CN103425091A (en) | Single grain rapeseed quality near infrared spectrum on-line nondestructive testing method and device | |
| CN201993602U (en) | Rape automatic variable seeding control system | |
| CN111066466A (en) | Combine harvester with self-adaptive adjustment of working load and control method thereof | |
| CN109752205A (en) | Planting with sowing machine quality evaluation device and method | |
| CN202119682U (en) | Disk type stalk cutting testing device | |
| CN201149549Y (en) | Experimental rig for seed-husking separation of minitype materiel | |
| CN206161335U (en) | Harvester performance detection device that threshes | |
| CN202693464U (en) | Small particle size seed quality online nondestructive detecting device based on near infrared spectrum | |
| CN101502209B (en) | Combined harvester feed quantity testing method, device and feed quantity sensor | |
| Thorne | Equipment and techniques for field research in soybeans | |
| CN105549484A (en) | Corn threshing and threshing intelligent control system based on DSP |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20080709 Assignee: Wuxi Combine Harvester Co.,Ltd. Assignor: Jiangsu University Contract record no.: 2013320000134 Denomination of invention: Stalk cutting test device and method Granted publication date: 20090715 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090715 Termination date: 20141226 |
|
| EXPY | Termination of patent right or utility model |