CN115380649B - Electric drive double-drive agricultural machinery opposite-row transverse moving device - Google Patents
Electric drive double-drive agricultural machinery opposite-row transverse moving device Download PDFInfo
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- CN115380649B CN115380649B CN202210025879.XA CN202210025879A CN115380649B CN 115380649 B CN115380649 B CN 115380649B CN 202210025879 A CN202210025879 A CN 202210025879A CN 115380649 B CN115380649 B CN 115380649B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 65
- 239000000725 suspension Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims 7
- 238000011089 mechanical engineering Methods 0.000 abstract description 2
- 230000033001 locomotion Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009333 weeding Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B71/00—Construction or arrangement of setting or adjusting mechanisms, of implement or tool drive or of power take-off; Means for protecting parts against dust, or the like; Adapting machine elements to or for agricultural purposes
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
- H02K7/1163—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to the field of agricultural mechanical engineering. The technical proposal is as follows: an electric drive double drive agricultural machinery is to going sideslip device, its characterized in that: the device comprises a frame, a traversing rack which is slidably positioned on the frame, and a transmission mechanism which is arranged in the frame and is provided with two motors and used for transmitting the power of the motors to drive the traversing rack to slide; the transmission mechanism comprises two first transmission shafts driven by motors respectively, sun gears fixed with the first transmission shafts, first gears rotatably positioned on one first transmission shaft, a planet carrier fixed with the first gears, planet gears rotatably positioned on the planet carrier and meshed with the two sun gears simultaneously, two screw sliding tables, second transmission shafts with two ends connected with screw rods of the two screw sliding tables respectively, second gears fixed with the second transmission shafts and meshed with the first gears, and connecting plates fixed with the transverse moving frames and sliding blocks of the screw sliding tables respectively. The device has the characteristics of long service life, high control precision and good reliability.
Description
Technical Field
The invention relates to the field of agricultural mechanical engineering, in particular to an electric drive double-drive agricultural machinery opposite-row transverse moving device.
Background
When crops are planted or transplanted, the crops are arranged in a non-straight line due to mechanical errors or artificial errors, and random deviation exists, so that the precision is not high when agricultural machinery such as weeding, pesticide application and the like performs line alignment operation nearby the crops, the target effect cannot be achieved, even the crops are damaged, manual auxiliary line alignment operation is usually needed, the cost of agricultural production is increased, and therefore the requirement for an automatic line alignment and transverse movement device is urgent.
Some automatic opposite-moving and transverse-moving devices are studied at home and abroad, but the devices mainly adopt hydraulic drive and need power platforms matched with hydraulic output, and the power platforms are usually large-scale agricultural machinery adopting fuel oil power sources. Meanwhile, along with the development of green agricultural production, the requirements for the electric drive agricultural machinery are urgent, but the motor in the conventional electric drive opposite-row traversing device needs to be frequently started and stopped, so that the problems of large impact and easy damage exist, and the practicability is to be improved.
Disclosure of Invention
The invention aims to overcome the defects in the background technology and provide the electric drive double-drive agricultural machinery opposite-row transverse moving device which has the characteristics of long service life, high control precision and good reliability.
The technical scheme of the invention is as follows:
an electric drive double drive agricultural machinery is to going sideslip device, its characterized in that: the device comprises a frame, a traversing rack which is slidably positioned on the frame, and a transmission mechanism which is arranged in the frame and is provided with two motors and used for transmitting the power of the motors to drive the traversing rack to slide;
the transmission mechanism comprises two first transmission shafts driven by motors respectively, sun gears fixed with the first transmission shafts, first gears rotatably positioned on one first transmission shaft, a planet carrier fixed with the first gears, planet gears rotatably positioned on the planet carrier and meshed with the two sun gears simultaneously, two screw sliding tables, second transmission shafts with two ends connected with screw rods of the two screw sliding tables respectively, second gears fixed with the second transmission shafts and meshed with the first gears, and connecting plates fixed with the transverse moving frames and sliding blocks of the screw sliding tables respectively.
The output shaft rotation axis, the first transmission shaft rotation axis, the first gear rotation axis and the sun gear rotation axis of the motor are coaxially arranged; the second transmission shaft rotation axis, the second gear rotation axis and the screw rod rotation axis of the screw rod sliding table are coaxially arranged; the sliding direction of the transverse moving frame, the rotating axis of the first transmission shaft, the rotating axis of the second transmission shaft and the sliding block of the screw sliding table are parallel to each other; the sun gear rotational axis is perpendicular to the planet gear rotational axis.
The motor output shaft is connected with a first transmission shaft through a first coupling; and two ends of the second transmission shaft are connected with a screw of the screw sliding table through a second coupler.
A gear box is arranged in the frame; the first drive shaft, the second drive shaft, the sun gear, the planet carrier, the planet gears, the first gear, and the second gear are rotatably positioned in the gear box.
And a linear potentiometer is also arranged in the frame, and a pull rod of the linear potentiometer is fixed with the connecting frame.
The frame comprises a shell composed of a bottom plate and a plurality of hanging plates fixed with the shell.
The frame is provided with two guide rails, and the transverse moving frame is provided with idler wheels which are in sliding fit with the guide rails.
The hanging plate comprises an end hanging plate, a lower hanging plate and an upper hanging plate; and lifting lugs are arranged on the lower suspension plate and the upper suspension plate.
The two guide rails are arranged in parallel, the included angle between the sliding surfaces of the two guide rails and the horizontal plane is 45 degrees, and limiting plates are arranged at the two ends of each guide rail.
The beneficial effects of the invention are as follows:
1) The invention is carried on the advancing platform, is driven by double powers provided by two motors, ensures that the machine tool arranged on the transverse moving frame is accurately aligned with the crop row, realizes the accurate alignment operation of the agricultural machinery, and has the characteristics of strong power, stable operation, good controllability, high reliability and strong applicability;
2) According to the invention, the rotation speed difference of the double motors is used as power to drive the transverse moving frame to carry out transverse moving motion through the transmission mechanism, so that the motors keep continuously rotating when the agricultural machinery carries out continuous operation, frequent start and stop of the motors are avoided, the impact is reduced, the service life of the motors is prolonged, and the reliability is improved;
3) The invention uses the double motors as the driving sources to realize double driving, so that the driving force of the transverse movement is stronger, larger thrust can be output, the earth-penetrating operation resistance of the machine is effectively overcome, and the smooth realization of the transverse movement is ensured;
4) The transmission mechanism consists of the motor, the gear and the screw sliding table, the transmission ratio is accurate, the transverse movement speed of the transverse moving frame can be regulated and controlled by the rotating speed difference of the double motors, the linear potentiometer detects the transverse offset of the transverse moving frame in real time, and the transmission mechanism has controllable transverse movement speed and accurate position information perception, so that an external control system can accurately and reliably control the device.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
FIG. 2 is a schematic diagram of a second perspective structure of the present invention.
FIG. 3 is a third perspective view of the present invention (the traversing plate is omitted).
Fig. 4 is a schematic diagram of the front view structure of the present invention.
Fig. 5 is a schematic perspective view of the frame of the present invention.
Fig. 6 is a schematic perspective view of the traversing carriage of the present invention.
Fig. 7 is a schematic perspective view of the transmission mechanism of the present invention.
Fig. 8 is a schematic diagram of a second perspective view of the transmission mechanism of the present invention.
FIG. 9 is a third perspective view of the transmission mechanism of the present invention.
FIG. 10 is a schematic perspective view of a transmission mechanism of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to the following examples.
As shown in figure 1, the electric drive double-drive agricultural machinery opposite-row transverse moving device comprises a frame 1, a transverse moving frame 2, a motor 3 and a transmission mechanism.
The transverse moving frame can be horizontally and slidably positioned on the frame, the motor and the transmission mechanism are arranged in the frame, and the transmission mechanism is used for transmitting the power of the motor to drive the transverse moving frame to slide.
The frame comprises a cuboid shell formed by a plurality of bottom plates 1.1 and a plurality of hanging plates fixed with the shell. The hanging plates are frame plates in a shape of a Chinese character kou, the number of the hanging plates is eight, and the hanging plates comprise two end hanging plates 1.2, four two lower hanging plates 1.3 arranged between the two end hanging plates, and two upper hanging plates 1.4 arranged between the middle two lower hanging plates. The upper hanging plate, the lower hanging plate and the end hanging plates are arranged in parallel, and the shell vertically penetrates through the inner holes of the eight hanging plates.
The corner of the upper hanging plate is provided with an upper lifting lug 1.41 extending obliquely upwards, the corner of the lower hanging plate is provided with a lower lifting lug 1.31 extending obliquely downwards, and the upper lifting lug in the middle and the lower lifting lugs on the two sides are arranged in a delta shape. The frame is fixed on an external operation platform (not shown in the figure) through an upper hanging lug and a lower hanging lug, and the external operation platform drives the electric drive double-drive agricultural machinery to synchronously advance the transverse movement device when moving.
Two guide rails 15 are further fixed on the side face of the frame, the two guide rails are horizontally arranged up and down and are fixed with eight hanging plates at the same time, a plurality of rollers 16 which are in sliding fit with the two guide rails are arranged on the transverse moving frame, the rollers adopt compound bearings, and limiting plates 17 are arranged at two ends of the guide rails. The included angle between the sliding surfaces 15.1 of the two guide rails and the horizontal plane is 45 degrees, and the included angle between the rotation axis of the roller installed on the upper guide rail and the rotation axis of the roller installed on the lower guide rail is 90 degrees. And a plurality of mounting holes 2.1 for mounting the tail end of the machine tool are also formed in the transverse moving frame. The frame is used as a stator of the whole device, and the transverse moving frame is used as a rotor of the whole device.
The transmission mechanism comprises a first transmission shaft 4, a sun gear 5, a first gear 6, a planet carrier 7, a planet gear 8, a screw sliding table 9, a second transmission shaft 10 and a second gear 11.
Wherein: the two motors and the two screw sliding tables are fixed with the bottom plate, the first transmission shaft, the sun gear, the first gear, the planet carrier and the planet gear are arranged between the two motors, output shafts of the two motors are coaxially arranged, and the second transmission shaft and the second gear are arranged between the two screw sliding tables; the first transmission shaft and the second transmission shaft are both rotatably positioned on the bottom plate, and the motor is fixed with the bottom plate through the base 3.1.
The output shaft of each motor is coaxially connected with one first transmission shaft through a first coupler 13.1, a sun gear is coaxially fixed on each first transmission shaft, the first gear is rotatably positioned on one first transmission shaft, the planet carrier is fixed with the first gear, two planet gears are rotatably positioned on the planet carrier, and the two planet gears are simultaneously meshed with the two sun gears; the second gear is coaxially fixed with the second transmission shaft, the second gear is meshed with the first gear, two ends of the second transmission shaft are coaxially connected with screw rods 9.1 of two screw rod sliding tables through second couplings 13.2, and sliding blocks (omitted in the figure) of the screw rod sliding tables are fixed with the transverse moving frame through connecting plates 12. The sun gear and the planetary gears are bevel gears, and the two planetary gears are symmetrically arranged around the rotation axis of the first transmission shaft.
A gear box 18 is fixed on the base plate, and the first transmission shaft, the second transmission shaft, the sun gear, the planet carrier, the planet gears, the first gear and the second gear are all rotatably positioned in the gear box. And a linear potentiometer 14 is also fixed on the bottom plate, a pull rod of the linear potentiometer is fixed with the connecting plate, and the linear potentiometer is used for detecting the transverse displacement distance of the transverse moving frame in real time.
The output shaft rotation axis, the first transmission shaft rotation axis, the first gear rotation axis and the sun gear rotation axis of the motor are coaxially arranged; the second transmission shaft rotation axis, the second gear rotation axis and the screw rod rotation axis of the linear sliding table are coaxially arranged; the sliding direction of the transverse moving frame, the rotating axis of the first transmission shaft, the rotating axis of the second transmission shaft and the sliding direction of the sliding block of the linear sliding table are parallel to each other; the sun gear rotational axis is perpendicular to the planet gear rotational axis.
The working principle of the invention is as follows:
the electric drive double-drive agricultural machinery opposite-moving and transverse-moving device is driven by an external operation platform to advance, and the two motors rotate at the same speed in the opposite direction (shown by an arrow in fig. 8), at the moment, the planetary gear only rotates and does not revolve, namely the first gear does not rotate, and the transverse-moving frame is kept motionless; if the two motors run at different speeds in opposite directions, the planetary gears simultaneously rotate and revolve, that is, the first gear rotates (the rotation direction of the first gear is the same as the rotation direction of the motor with higher rotation speed), and at the moment, the transverse moving frame transversely moves.
When the electric drive double-drive agricultural machinery opposite-row transverse moving device disclosed by the invention is used for opposite-row operation, the two motors and the linear potentiometer are electrically connected with an external controller, an external offset detection sensor (taking a camera as an example) and the tail end of a machine tool are fixedly connected to a transverse moving frame, the camera shoots images in real time and inputs the images into the controller to detect the transverse offset between the current plant seedling and the tail end of the machine tool, the double-motor drive speed difference is calculated according to the transverse moving principle of the transverse moving device, the double-motor is driven to rotate, and the transverse displacement between the center of the transverse moving frame detected by the linear potentiometer and the center of the machine frame is compared in real time, so that transverse inner closed-loop transverse moving control is established; when the plant seedlings and the tail ends of the machines have transverse offset, the controller adjusts the rotating speeds of the two motors to drive the transverse moving frames to move so as to eliminate the offset, and finally, automatic alignment operation is realized.
The components of the invention are all of the prior art and are available commercially.
Finally, it should be noted that the above list is only specific embodiments of the present invention. Obviously, the invention is not limited to the above embodiments, but many variations are possible. All modifications directly derived or suggested to one skilled in the art from the present disclosure should be considered as being within the scope of the present invention.
Claims (8)
1. An electric drive double drive agricultural machinery is to going sideslip device, its characterized in that: the device comprises a frame (1), a traversing rack (2) which is slidably positioned on the frame (1), two motors (3) which are arranged in the frame (1) and a transmission mechanism which is used for transmitting the power of the motors (3) to drive the traversing rack (2) to slide;
the transmission mechanism comprises two first transmission shafts (4) which are driven by motors (3) respectively, a sun gear (5) which is fixed with the first transmission shafts (4), a first gear (6) which is rotatably positioned on one first transmission shaft (4), a planet carrier (7) which is fixed with the first gear (6), a planet gear (8) which is rotatably positioned on the planet carrier (7) and is meshed with the two sun gears (5) at the same time, two screw sliding tables (9), a second transmission shaft (10) which is respectively connected with screw rods of the two screw sliding tables (9) at two ends, a second gear (11) which is fixed with the second transmission shaft (10) and is meshed with the first gear (6), and a connecting plate (12) which is respectively fixed with the traverse frame (2) and a sliding block of the screw sliding tables (9);
the rotation axis of the output shaft of the motor (3), the rotation axis of the first transmission shaft (4), the rotation axis of the first gear (6) and the rotation axis of the sun gear (5) are coaxially arranged; the rotation axis of the second transmission shaft (10), the rotation axis of the second gear (11) and the rotation axis of the screw sliding table (9) are coaxially arranged; the sliding direction of the transverse moving frame (2), the rotation axis of the first transmission shaft (4), the rotation axis of the second transmission shaft (10) and the sliding block sliding direction of the screw rod sliding table (9) are parallel to each other; the rotation axis of the sun gear (5) is perpendicular to the rotation axis of the planetary gear (8);
the device is driven by an external operation platform to advance, the two motors (3) rotate at the same speed in opposite directions, and at the moment, the planetary gears (8) only rotate and do not revolve, namely the first gears (6) do not rotate, and the transverse moving frame (2) is kept motionless; if the two motors (3) rotate at different speeds in opposite directions, the planetary gears (8) simultaneously rotate and revolve, namely the first gear (6) rotates, the rotation direction of the first gear (6) is the same as the rotation direction of the motor (3) with higher rotation speed, and the transverse moving frame (2) transversely moves.
2. The electrically driven dual drive agricultural machinery opposite-row traversing device of claim 1, wherein: an output shaft of the motor (3) is connected with a first transmission shaft (4) through a first coupler (13.1); two ends of the second transmission shaft (10) are connected with a screw of the screw sliding table (9) through a second coupling (13.2).
3. The electrically driven dual drive agricultural machinery opposite-row traversing device of claim 2, wherein: a gear box is arranged in the frame (1); the first transmission shaft (4), the second transmission shaft (10), the sun gear (5), the planet carrier (7), the planet gears (8), the first gear (6) and the second gear (11) are all rotatably positioned in the gear box.
4. The electrically driven dual drive agricultural machine pair-wise traversing device of claim 3, wherein: the frame (1) is also provided with a linear potentiometer (14), and a pull rod of the linear potentiometer (14) is fixed with the connecting frame.
5. The electrically driven dual drive agricultural machinery opposite-row traversing device of claim 4, wherein: the frame (1) comprises a shell composed of a bottom plate (1.1) and a plurality of hanging plates fixed with the shell.
6. The electrically driven dual drive agricultural machinery opposite-row traversing device of claim 5, wherein: two guide rails (15) are arranged on the frame (1), and idler wheels (16) which are in sliding fit with the guide rails (15) are arranged on the transverse moving frame (2).
7. The electrically driven dual drive agricultural machinery opposite-row traversing device of claim 6, wherein: the suspension plates comprise an end suspension plate (1.2), a lower suspension plate (1.3) and an upper suspension plate (1.4); lifting lugs are arranged on the lower hanging plate (1.3) and the upper hanging plate (1.4).
8. The electrically driven dual drive agricultural machinery opposite-row traversing device of claim 7, wherein: the two guide rails (15) are arranged in parallel, the included angle between the sliding surfaces of the two guide rails (15) and the horizontal plane is 45 degrees, and limiting plates (17) are arranged at two ends of each guide rail (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210025879.XA CN115380649B (en) | 2022-01-11 | 2022-01-11 | Electric drive double-drive agricultural machinery opposite-row transverse moving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210025879.XA CN115380649B (en) | 2022-01-11 | 2022-01-11 | Electric drive double-drive agricultural machinery opposite-row transverse moving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115380649A CN115380649A (en) | 2022-11-25 |
| CN115380649B true CN115380649B (en) | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210025879.XA Active CN115380649B (en) | 2022-01-11 | 2022-01-11 | Electric drive double-drive agricultural machinery opposite-row transverse moving device |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3269464A (en) * | 1963-07-24 | 1966-08-30 | Int Harvester Co | Implement control means for tractor operated agricultural implements |
| US4579038A (en) * | 1984-05-04 | 1986-04-01 | Deere & Company | Depth control valve and system for agricultural implements |
| CN208387303U (en) * | 2018-04-26 | 2019-01-18 | 郑宇虎 | A kind of multi-functional shrub cropper |
| CN109544596A (en) * | 2018-10-30 | 2019-03-29 | 浙江理工大学 | A kind of artificial intelligence binocular vision tracking mechanism of view-based access control model feedback |
| CN110789634A (en) * | 2019-09-30 | 2020-02-14 | 浙江理工大学 | Spiral propelling type operation platform suitable for complex terrain |
| CN112154749A (en) * | 2020-10-09 | 2021-01-01 | 中国农业大学 | Forward and backward synchronous steering active row alignment and posture adjustment device of no-tillage seeder |
| CN112840762A (en) * | 2021-03-01 | 2021-05-28 | 东北农业大学 | Automatic weeding mechanism between crop plants |
| CN113008549A (en) * | 2021-04-12 | 2021-06-22 | 宁波大学 | Variable-size RV reducer planetary gear stress measuring device and method |
| CN115380650A (en) * | 2022-01-11 | 2022-11-25 | 浙江理工大学 | Electric-drive multi-drive agricultural machinery opposite-row transverse-moving deflection device |
-
2022
- 2022-01-11 CN CN202210025879.XA patent/CN115380649B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3269464A (en) * | 1963-07-24 | 1966-08-30 | Int Harvester Co | Implement control means for tractor operated agricultural implements |
| US4579038A (en) * | 1984-05-04 | 1986-04-01 | Deere & Company | Depth control valve and system for agricultural implements |
| CN208387303U (en) * | 2018-04-26 | 2019-01-18 | 郑宇虎 | A kind of multi-functional shrub cropper |
| CN109544596A (en) * | 2018-10-30 | 2019-03-29 | 浙江理工大学 | A kind of artificial intelligence binocular vision tracking mechanism of view-based access control model feedback |
| CN110789634A (en) * | 2019-09-30 | 2020-02-14 | 浙江理工大学 | Spiral propelling type operation platform suitable for complex terrain |
| CN112154749A (en) * | 2020-10-09 | 2021-01-01 | 中国农业大学 | Forward and backward synchronous steering active row alignment and posture adjustment device of no-tillage seeder |
| CN112840762A (en) * | 2021-03-01 | 2021-05-28 | 东北农业大学 | Automatic weeding mechanism between crop plants |
| CN113008549A (en) * | 2021-04-12 | 2021-06-22 | 宁波大学 | Variable-size RV reducer planetary gear stress measuring device and method |
| CN115380650A (en) * | 2022-01-11 | 2022-11-25 | 浙江理工大学 | Electric-drive multi-drive agricultural machinery opposite-row transverse-moving deflection device |
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