CN108650981B - Four-connecting-rod type intelligent corn ear picking device for harvesting corn ears in residential area - Google Patents
Four-connecting-rod type intelligent corn ear picking device for harvesting corn ears in residential area Download PDFInfo
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- CN108650981B CN108650981B CN201810287955.8A CN201810287955A CN108650981B CN 108650981 B CN108650981 B CN 108650981B CN 201810287955 A CN201810287955 A CN 201810287955A CN 108650981 B CN108650981 B CN 108650981B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D45/00—Harvesting of standing crops
- A01D45/02—Harvesting of standing crops of maize, i.e. kernel harvesting
- A01D45/021—Cornheaders
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
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Abstract
The invention discloses a four-connecting-rod intelligent corn ear picking device for harvesting corn ears in a community, which belongs to the technical field of agricultural machinery, and is arranged on a corn harvester to realize the corn ear picking function; and the harvested corns are subjected to weight measurement and classified through an intelligent weight measurement system. The corn ear picking device simulating manual ear picking has the advantages of good bionic effect, low power consumption, simple structure and small damage to the corn, and can be used for a harvester for corn seeds in a small area.
Description
Technical Field
The invention belongs to the technical field of agricultural machinery, and particularly relates to a four-connecting-rod type intelligent corn ear picking device for harvesting corn ears in a community.
Background
The sowing area of Chinese corn is about 35000 kilo hectares, and the corn seeds are in great demand every year. At present, the mechanization degree of community breeding of corn varieties is extremely low, so that the cultivation, harvesting and cleaning of corn seeds are mostly completed manually, the working efficiency is low, and the price of the corn seeds is indirectly influenced. The traditional corn harvester has the problems of broken corn grains, falling clusters, high loss rate and the like. Therefore, it is impossible to directly use a general corn harvester as a precise corn district harvesting machine, and a novel corn seed harvester needs to be developed.
In addition, the precise harvesting mechanized technology of foreign corn communities is becoming mature day by day, and is widely popularized and applied in corn variety community breeding test bases of various countries in the world. The research of the domestic community breeding corn combined harvest technology is basically in a blank stage, thereby not only reducing the push-out efficiency of new corn varieties, but also influencing the rapid and healthy development of the national corn breeding industry. No formed combined harvesting machine for corn plot breeding tests exists in the domestic market, and the breeding scientific research institutions, universities and higher schools and breeding companies mainly use manual harvesting, so that the manpower waste of scientific research personnel is caused, test data cannot be acquired in time, the precision of the breeding tests is influenced invisibly, and the good implementation and development of Chinese high-quality projects are hindered.
Therefore, an equipment is urgently needed to solve the problems of low mechanization degree of community breeding, broken corn kernels, dropped corn ears, high loss rate and the like during harvesting, and fills the gap of domestic research on the community breeding corn combined harvesting technology.
Disclosure of Invention
In order to solve the problems mentioned in the background art, the invention discloses a four-connecting-rod type intelligent corn ear picking device for harvesting corn ears in a community, which is characterized by comprising the following components: the ear picking device comprises a motor, a power transmission mechanism and a four-connecting-rod ear picking mechanism, wherein the power transmission mechanism consists of a transmission case, a belt pulley and a transmission shaft; the transmission case is bolted on the rack, the transmission shaft is a stepped shaft, the transmission shaft is arranged in the transmission case through a bearing I and a bearing II and is rotationally connected with the transmission case, and the belt pulley is arranged at the small-diameter end of the transmission shaft; the motor is arranged on a frame of the corn harvester, and the belt pulley is connected with the motor through a triangular belt; the power is transmitted to the four-connecting-rod ear picking mechanism through a triangular belt, a belt pulley and a transmission shaft;
the four-connecting-rod ear picking mechanism comprises an ear picking barrel, a power rod and a connecting rod, wherein the power rod is installed at the large-diameter end of a transmission shaft, the connecting rod is welded on a box body of the transmission case, the connecting rod is installed on the connecting rod of the transmission case through a bearing, the connecting rod and the power rod are both located on the same side of the transmission case, the axes of the connecting rod and the transmission shaft are parallel, the four-connecting-rod ear picking mechanism is powered by the transmission shaft, two ends of the ear picking barrel are respectively hinged with the power rod and the connecting rod, and the four-connecting-rod ear picking mechanism and.
The section of a ear picking cylinder body in the ear picking cylinder is in a track shape, a base I and a base II are fixedly connected to two ends below the ear picking cylinder body respectively, and pin holes of the base I and pin holes of the base II are formed in the base I and the base II respectively;
the two ends of the power rod are respectively a pin hole end and a shaft hole end, wherein the shaft hole end is provided with a shaft hole, a key groove III is arranged in the shaft hole, a pin hole I is arranged in the pin hole end, and the pin hole I and the base I are connected through a connecting pin I in a pin mode;
two ends of the connecting rod are respectively provided with a pin hole II and a mounting hole; the pin hole II and the base II are connected through a connecting pin II in a pin joint mode.
The pitch between the pin hole of the base I and the pin hole of the base II is 450 mm; the pitch between the pin hole I and the shaft hole is 470mm, and the pitch between the pin hole II and the mounting hole is 660 mm; the length of the ear picking cylinder body is 480 mm.
The single chip microcomputer divides corn ears pressed on the weighing sensor during receiving into three types of corn ears below 200g, corn ears between 200g and 350g and corn ears above 350g according to weight.
One end of the pin hole II of the connecting rod is fixedly connected with a spike blocking bottom plate; the appearance of the ear blocking bottom plate is matched with the section of the ear picking barrel.
The center of the ear blocking bottom plate is provided with a weighing sensor which is connected with the singlechip through an A/D converter; the single chip microcomputer is connected with the motor through a current regulator, and the LCD is connected with the single chip microcomputer;
the weighing sensor is a resistance strain type sensor, and the model of the single chip microcomputer is STC15W 408S.
The central distance between the transmission shaft and the connecting rod is 220 mm.
The length of box is 400mm, the width is 450mm, and the height is 300 mm.
The transmission case comprises a case body and a base welded at the bottom of the case body, the base is bolted with a frame of the corn harvester through a base bolt, two sides of the case body are provided with a bearing end cover I and a bearing end cover II, and the bearing end cover I and the bearing end cover II are respectively arranged at two sides of the case body through a bolt I and a bolt II;
the transmission shaft forms the rotation with the transmission box through bearing I and bearing II and is connected, and bearing I is fixed in order to restrict the axial displacement of transmission shaft by bearing end cover I, and bearing II is fixed in order to restrict transmission shaft axial displacement by bearing end cover II, and the path end of transmission shaft is equipped with keyway I.
The invention has the beneficial effects that:
adopt four-bar linkage to carry out maize harvesting, furthest reduces the damage to the maize ear, and intelligence check weighing can carry out quality testing and classification to the ear of grain of breeding, has overcome that traditional roll-type ear of grain device structure is complicated, the device is heavy, power consumption is big, work efficiency low grade shortcoming, provides a maize ear of grain device is broken off with fingers and thumb to the imitation manpower, has that bionic effect is good, power consumption is little, simple structure, the little advantage of damage to the maize, can be used to the harvester of district corn seed.
Drawings
FIG. 1 is a side view of an embodiment of a four-bar linkage intelligent corn ear picking device for harvesting corn ears in a community of the present invention;
FIG. 2 is a side view of an embodiment of the present invention during ear throwing;
FIG. 3A is a top view of a power transmission mechanism according to an embodiment of the present invention;
FIG. 3B is a cross-sectional view of the power transmission mechanism in an embodiment of the present invention;
FIG. 3C is a schematic diagram of the internal structure of the power transmission mechanism according to the embodiment of the present invention;
FIG. 4 is a schematic perspective view of a transmission shaft according to an embodiment of the present invention;
FIG. 5 is a schematic perspective view of a power rod according to an embodiment of the present invention;
FIG. 6 is a schematic perspective view of a ear picking barrel according to an embodiment of the present invention;
FIG. 7 is a schematic perspective view of a connecting rod according to an embodiment of the present invention;
FIG. 8 is a block diagram of a flow chart of an intelligent weight measuring system in an embodiment of the present invention;
in the figure, 1 is a transmission case, 2 is a ear picking cylinder, 3 is a clamping device, 4 is a motor, 5 is a V-belt, 6 is a belt pulley, 7 is a transmission shaft, 8 is a connecting rod, 9 is a power rod, 10 is a corn ear, 11 is a connecting pin I, 12 is a connecting pin II, 13 is a resistance strain type weight measuring sensor, 101 is a connecting rod, 102 is a case body, 103 is a bearing end cover I, 104 is a bearing end cover II, 105 is a base, 106 is a base bolt, 107 is a bolt I, 108 is a bolt II, 201 is a base I, 202 is an ear picking cylinder, 203 is a base II, 601-belt wheel bolt, 701-bearing I, 702-bearing II, 703-key groove I, 704-threaded hole I, 705-key groove II, 706-threaded hole II, 801-ear blocking bottom plate, 802-pin hole II, 803-mounting hole, 901-positioning screw rod, 902-key groove III, 903-pin hole I, 904-shaft hole.
Detailed Description
The specific structure and operation of the present invention will be described with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2, an embodiment of a four-bar linkage type intelligent corn ear picking device for harvesting corn ears in a community comprises: the device comprises a motor 4, a power transmission mechanism, a four-connecting-rod ear picking mechanism and an intelligent weight measuring system, wherein the power transmission mechanism consists of a transmission case 1, a belt pulley 6 and a transmission shaft 7; the transmission case 1 is bolted on the frame, the transmission shaft 7 is a stepped shaft, the transmission shaft 7 is installed and penetrates through the transmission case 1, the belt pulley 6 is installed at the small-diameter end of the transmission shaft 7, the belt pulley 6 is connected with the motor 4 through the V-belt 5, the power of the whole device is provided by the motor 4 installed on the corn harvester, and the power is transmitted to the four-connecting-rod ear picking mechanism through the V-belt 5, the belt pulley 6 and the transmission shaft 7;
as shown in fig. 3A, 3B, 3C and 4, the power transmission mechanism is composed of a transmission case 1, a belt pulley 6 and a transmission shaft 7, the transmission case 1 includes a case body 102 and a base 105, the base 105 is welded at the bottom of the case body 102 and is a connecting part of the whole device, a base bolt 106 on the base 105 bolts the transmission case 1 with a frame of the corn harvester, a connecting rod 101 for installing a connecting rod 8 is welded at one side of the case body 102, a bearing end cover i 103 and a bearing end cover ii 104 are arranged at two sides of the case body 102, the bearing end cover i 103 and the bearing end cover ii 104 are bolted with two sides of the case body 102 through a bolt i 107 and a bolt ii 108, and the case body 102 has a length of 400mm, a width of 450mm and a height;
the belt pulley 6 is arranged at the small-diameter end of the transmission shaft 7, the belt pulley 6 limits circumferential rotation of the belt pulley 6 through a transmission key, the transmission shaft 7 is rotatably connected with the transmission case 1 through a bearing I701 and a bearing II 702, the bearing I701 is fixed by a bearing end cover I103 to limit axial displacement of the transmission shaft 7, the bearing II 702 is fixed by a bearing end cover II 104 to limit axial displacement of the transmission shaft 7, the small-diameter end of the transmission shaft 7 is provided with a key groove II 705, the transmission key arranged in the key groove II 705 ensures that torque provided by the belt pulley 6 is transmitted to the transmission shaft 7, the large-diameter end of the transmission shaft 7 is also provided with a key groove I703, and the transmission key arranged in the key groove I703 ensures that torque on the transmission shaft;
when the belt pulley is installed, the transmission key is firstly placed in the key groove I703, then the belt pulley 6 is pushed into the small-diameter section of the transmission shaft 7, and then the bolt 601 is screwed into the threaded hole II 706, so that the belt pulley 6 is axially positioned; the transmission shaft 7 is used for transmitting the power provided by the belt pulley 6,
during installation, a transmission key is firstly placed into the key groove II 705, then the shaft hole of the power rod 9 is pushed into the small-diameter section of the transmission shaft 7, and the bolt 901 is screwed into the threaded hole I704 to limit the axial displacement of the power rod 9; a drive key, mounted in keyway II 705, transmits the torque provided by pulley 6 to drive shaft 7.
As shown in fig. 5, 6 and 7, the four-bar ear picking mechanism mainly comprises an ear picking barrel 2, a power rod 9 and a connecting rod 8, wherein the power rod 9 is installed at the large-diameter end of a transmission shaft 7, the connecting rod 8 is installed on a connecting rod 101 of a transmission case 1 through a bearing and is positioned at the same side of the large-diameter end of the transmission shaft 7 as the power rod 9, namely, the same side of the transmission case 1, the axes of the connecting rod 101 and the transmission shaft 7 are parallel, the four-bar ear picking mechanism is powered by the transmission shaft 7, two ends of the ear picking barrel 2 are respectively hinged with the power rod 9 and the connecting rod 8, and the four-bar ear picking mechanism and the transmission case 1 form a double-crank;
the section of the ear picking cylinder body 202 in the ear picking cylinder 2 is in a track shape, a base I201 and a base II 203 are fixedly connected to two ends below the ear picking cylinder body 202 respectively, and a base I pin hole and a base II pin hole are formed in the base I201 and the base II 203 respectively;
two ends of the power rod 9 are respectively a pin hole end and a shaft hole end, wherein the shaft hole end is provided with a shaft hole 904, a key groove III 902 is arranged in the shaft hole 904, and a transmission key is arranged between the key groove III 902 and the key groove I703 to transmit torque; a pin hole I903 is formed in the pin hole end, the pin hole I903 and the base I201 are connected through a connecting pin I11 in a pin mode, and the power rod 9 is rotatably connected with the ear picking barrel 2; the positioning screw 901 is mounted at the shaft hole end of the power rod 9 to limit the axial sliding of the power rod 9;
two ends of the connecting rod 8 are respectively provided with a pin hole II 802 and a mounting hole 803; the pin hole II 802 and the base II 203 are in pin joint through a connecting pin II 12, so that the connecting rod 8 and the ear picking barrel 2 form rotary connection; the shape of the ear blocking bottom plate 801 is matched with the section of the ear picking barrel 202; the weighing sensor 13 is arranged in the center of the ear blocking bottom plate 801, and the weighing sensor 13 is a resistance strain type sensor;
two ends of the power rod 9 are respectively a pin hole end and a shaft hole end 904, wherein a bolt hole matched with the positioning screw 901 is radially reserved at the shaft hole end 904, and a key groove III 902 is formed in the shaft hole end 904; the connecting pin I11 passes through a pin hole I903 at the end of the pin hole and is in pin joint with a base I201 of the ear picking barrel 2,
the ear picking barrel 2 consists of an ear picking barrel body 202, a base I201 and a base II 203 which are fixedly connected below two ends of the ear picking barrel body 202, the cross section of the ear picking barrel body 202 is in a track shape, and the length of the ear picking barrel body 202 is 480 mm; the connecting pin II 12 passes through a pin hole II 802 of the connecting rod 8 and is in pin joint with a base II 203 of the ear picking barrel 2;
when the corn ears 10 are harvested by the ear harvesting barrel 2, in order to prevent the corn ears from falling off, an ear blocking bottom plate 801 is welded on the connecting rod 8, and the connecting rod 8 is installed on the connecting rod 101 on the transmission case 1 through the installation hole 803, so that a complete four-bar mechanism is formed; the center distance between the transmission shaft 7 and the connecting rod 101 is 220mm, and the pitch between the pin hole of the base I and the pin hole of the base II is 450 mm; the pitch between the pin hole I903 and the shaft hole 904 is 470mm, and the pitch between the pin hole II 802 and the mounting hole 803 is 660 mm; the length of the ear picking barrel 202 is 480 mm; the four long rods meet the rod length condition of the four-bar mechanism, and the shortest rod is a machine frame.
The intelligence system of weighing includes: the device comprises a weighing sensor 13, an A/D converter, an STC15W408S single chip microcomputer, an LCD display and a current regulator, wherein the weighing sensor 13 is connected with the single chip microcomputer through the A/D converter; the single chip microcomputer is connected with the motor 4 through a current regulator, and the LCD is connected with the single chip microcomputer;
the work flow of the single intelligent weight measuring system is shown in fig. 8:
1. after the corn ear 10 enters the ear picking barrel 202, the intelligent weight measuring system measures the weight of the corn ear in the ear picking barrel 202 by the weighing sensor 13, and divides the weight of the corn ear 10 into three intervals: 200g or less, 200g to 350g or more, 350g or less,
2. the A/D converter converts the quality of the corn ear 10 measured by the resistance strain type weight measuring sensor 13 into a digital signal from an analog signal, then the converted digital signal is sent to an STC15W408S singlechip for signal processing,
3. after the STC15W408S singlechip judges, the STC15W408S singlechip sends out an instruction to the current regulator to change the current of the motor 4, and simultaneously, the weight of the obtained corn ear is displayed on an LCD display,
4. the rotating speed of the motor 4 changes correspondingly according to the change of the current, and the rotating speed of the motor 4 directly influences the force of the four-link type ear picking mechanism, so that corn ears with different weights are classified by changing the throwing-out force of the ear picking barrel 202.
As shown in fig. 8, the complete working process of this embodiment is as follows:
1) when the corn ears 10 are harvested, a clamping device 3 which needs to be arranged in a corn harvester clamps and fixes corn plants, and the clamping device 3 is arranged on a horizontal plane and is vertical to the corn plants;
2) when the ear picking cylinder 2 is used for picking the corn ears 10, the ear blocking plate 801 on the connecting rod 8 just becomes the cylinder bottom of the ear picking cylinder 2, so that the picked corn ears 10 are prevented from being thrown out when the ear picking mechanism moves;
3) entering the working process of the intelligent weight measuring system;
4) when the connecting rod 8 rotates to a certain position, the ear picking barrel 2 moves to a position for throwing the corn ears, the ear blocking plate 801 does not just prevent the corn ears 10 from being thrown out, the whole ear picking process is finished, and the ears with different weights are placed in a classified mode due to the change of throwing force of the ear picking barrel 202;
then returning to 2) continuing to harvest the ear of corn 10 from the holding device 3.
Claims (9)
1. The utility model provides a four connecting rod formula intelligence maize ear of grain device that is used for district maize ear of grain to reap which characterized in that includes: the ear picking device comprises a motor (4), a power transmission mechanism and a four-connecting-rod ear picking mechanism, wherein the power transmission mechanism consists of a transmission box (1), a belt pulley (6) and a transmission shaft (7); the transmission case (1) is bolted on the rack, the transmission shaft (7) is a stepped shaft, the transmission shaft (7) is installed in the transmission case (1) through a bearing I (701) and a bearing II (702) and is in rotary connection with the transmission case (1), and the belt pulley (6) is installed at the small-diameter end of the transmission shaft (7); the motor (4) is arranged on a frame of the corn harvester, and the belt pulley (6) is connected with the motor (4) through a triangular belt (5); the power is transmitted to the four-connecting-rod ear picking mechanism through a triangular belt (5), a belt pulley (6) and a transmission shaft (7);
four-bar ear picking mechanism is by ear picking section of thick bamboo (2), power rod (9) and connecting rod (8) are constituteed, power rod (9) are installed in the big footpath end of transmission shaft (7), welding has connecting rod (101) on box (102) of transmission case (1), connecting rod (8) are installed on connecting rod (101) of transmission case (1) through the bearing, and connecting rod (8) all are located the homonymy of transmission case (1) with power rod (9), the axis of connecting rod (101) and transmission shaft (7) is parallel, four-bar ear picking mechanism is by transmission shaft (7) provide power, the both ends of ear picking section of thick bamboo (2) are articulated with power rod (9) and connecting rod (8) respectively, four-bar ear picking mechanism and transmission case (1) constitute double crank mechanism.
2. The four-connecting-rod intelligent corn ear picking device for the community corn ear harvesting of claim 1, characterized in that the cross section of the ear picking cylinder body (202) in the ear picking cylinder (2) is in a track shape, a base I (201) and a base II (203) are respectively and fixedly connected with two ends below the ear picking cylinder body (202), and a base I pin hole and a base II pin hole are respectively formed on the base I (201) and the base II (203);
two ends of the power rod (9) are respectively a pin hole end and a shaft hole end, wherein the shaft hole end is provided with a shaft hole (904), a key groove III (902) is arranged in the shaft hole (904), a pin hole I (903) is arranged in the pin hole end, and the pin hole I (903) is connected with the base I (201) in a pin mode through a connecting pin I (11);
two ends of the connecting rod (8) are respectively provided with a pin hole II (802) and a mounting hole (803); the pin hole II (802) and the base II (203) are in pin joint through a connecting pin II (12).
3. The intelligent four-link corn ear picking device for harvesting corn ears in a community as claimed in claim 2, wherein the pitch between the pin holes of the base I and the pin holes of the base II is 450 mm; the pitch between the pin hole I (903) and the shaft hole (904) is 470mm, and the pitch between the pin hole II (802) and the mounting hole (803) is 660 mm; the length of the ear picking barrel body (202) is 480 mm.
4. The intelligent corn ear picking device for harvesting corn ears in a community as claimed in claim 2, wherein an ear blocking bottom plate (801) is fixedly connected to one end of a pin hole II (802) of the connecting rod (8); the appearance of the ear blocking bottom plate (801) is matched with the section of the ear picking barrel body (202).
5. The four-link intelligent corn ear picking device for the district corn ear harvesting of claim 4, characterized in that the center of the ear blocking bottom plate (801) is provided with a weighing sensor (13), and the weighing sensor (13) is connected with the single chip microcomputer through an A/D converter; the single chip microcomputer is connected with the motor (4) through a current regulator, and the LCD is connected with the single chip microcomputer;
the weighing sensor (13) is a resistance strain type sensor, and the model of the single chip microcomputer is STC15W 408S.
6. The intelligent corn ear picking device for district corn ear harvesting of claim 5, characterized in that the single chip microcomputer classifies corn ears (10) pressed on the weighing sensor (13) at the time of receiving into three categories of 200g or less, 200 g-350 g and 350g or more according to weight.
7. The intelligent corn ear picking device for district corn ear harvesting of claim 1, characterized in that the wheelbase between the transmission shaft (7) and the connecting rod (101) is 220 mm.
8. The intelligent corn ear picking device for district corn ear harvesting of claim 1, characterized in that the box (102) has a length of 400mm, a width of 450mm and a height of 300 mm.
9. The intelligent corn ear picking device for harvesting the corn ears in the residential quarter is characterized in that the transmission case (1) comprises a case body (102) and a base (105) welded at the bottom of the case body (102), the base (105) is bolted with a frame of the corn harvester through a base bolt (106), two sides of the case body (102) are provided with a bearing end cover I (103) and a bearing end cover II (104), and the bearing end cover I (103) and the bearing end cover II (104) are respectively installed at two sides of the case body (102) through a bolt I (107) and a bolt II (108);
the bearing I (701) is fixed by a bearing end cover I (103) to limit the axial displacement of the transmission shaft (7), the bearing II (702) is fixed by a bearing end cover II (104) to limit the axial displacement of the transmission shaft (7), a key groove II (705) is arranged at the small-diameter end of the transmission shaft (7), and a key groove I (703) is arranged at the large-diameter end of the transmission shaft (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810287955.8A CN108650981B (en) | 2018-04-03 | 2018-04-03 | Four-connecting-rod type intelligent corn ear picking device for harvesting corn ears in residential area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810287955.8A CN108650981B (en) | 2018-04-03 | 2018-04-03 | Four-connecting-rod type intelligent corn ear picking device for harvesting corn ears in residential area |
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| Publication Number | Publication Date |
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| CN108650981A CN108650981A (en) | 2018-10-16 |
| CN108650981B true CN108650981B (en) | 2021-02-09 |
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| CN201810287955.8A Expired - Fee Related CN108650981B (en) | 2018-04-03 | 2018-04-03 | Four-connecting-rod type intelligent corn ear picking device for harvesting corn ears in residential area |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9560804B1 (en) * | 2010-12-15 | 2017-02-07 | Marion Calmer | Stalk roll with flutes defining a recess |
| US9693503B2 (en) * | 2013-02-20 | 2017-07-04 | Deere & Company | Crop sensing |
| CN103430694B (en) * | 2013-09-09 | 2015-07-08 | 山东理工大学 | Longitudinal poking wheel type corncob picking device |
| US9936637B2 (en) * | 2015-05-14 | 2018-04-10 | Deere & Company | Combine harvester combining row crop guidance and plant attribute measurement |
| CN205161162U (en) * | 2015-11-12 | 2016-04-20 | 济南大学 | Novel ear of grain is broken off with fingers and thumb to double cam crank rocker -type maize device |
| CN105284280B (en) * | 2015-12-08 | 2017-06-30 | 山东理工大学 | A kind of corn artificial with quickreturn characteristics imitation breaks fringe device |
| CN205546559U (en) * | 2015-12-17 | 2016-09-07 | 马源 | Corn harvester |
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