CN111296049A - Automatic stubble supporting, combing and guiding device for ratoon rice and regulating and controlling method thereof - Google Patents
Automatic stubble supporting, combing and guiding device for ratoon rice and regulating and controlling method thereof Download PDFInfo
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- CN111296049A CN111296049A CN201911189493.7A CN201911189493A CN111296049A CN 111296049 A CN111296049 A CN 111296049A CN 201911189493 A CN201911189493 A CN 201911189493A CN 111296049 A CN111296049 A CN 111296049A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
- A01D41/12—Details of combines
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
- A01D41/12—Details of combines
- A01D41/127—Control or measuring arrangements specially adapted for combines
- A01D41/1278—Control or measuring arrangements specially adapted for combines for automatic steering
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D65/00—Grain-crop lifters
- A01D65/02—Lifting fingers
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D65/00—Grain-crop lifters
- A01D65/04—Grain-crop lifters with revolving staffs
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Abstract
The invention provides an automatic stubble supporting and combing guide device for ratoon rice and a regulation and control method thereof, which mainly comprise a frame, a power system, a combing guide device, a stubble supporting device, a clutch linkage switch and a height regulating system; the frame can be fixed at the tail of the ratooning rice combine harvester, and the clutch linkage switch is positioned on the control console; the combing and guiding device and the stubble supporting device are both arranged on the height-adjustable support, the lifting adjustment of the stubble supporting device and the combing and guiding device is realized through the lifting device, the three sections of the combing and guiding sections and the two sections of the stubble supporting sections are arranged at intervals, and the total length of the three sections of the combing and guiding sections and the two sections of the stubble supporting sections is equal to the width of a harvester header. The invention can realize integration of stubble supporting and combing and guiding and automatic height adjustment while harvesting the ratoon rice, reduces the workload of manual stubble supporting and combing and guiding, and is beneficial to improving the yield of the ratoon rice in the regeneration season.
Description
Technical Field
The invention belongs to the technical field of a ratoon rice combine harvester, and particularly relates to an automatic stubble supporting, combing and guiding device for ratoon rice and a regulating and controlling method thereof.
Background
The regenerated rice is a rice variety which is sowed once and harvested twice, and has the advantages of water saving, seed saving, labor saving, low production cost, high benefit and the like. At present, the development of ratoon rice becomes an important innovation of a planting mode in the rice production transformation period in China. With the continuous acceleration of agricultural mechanization process, the operation technology of the mechanized harvesting of the ratooned rice is still relatively weak. When the machine for harvesting the regenerated rice head crops is used, the crawler belt or the wheel walking part of the harvester often rolls and leaves stubbles to cause that the stubbles are difficult to regenerate and spike, the yield of the regeneration season is seriously influenced, and meanwhile, residual stems are easily accumulated on the surface of the stubbles which are not rolled, so that regenerated seedlings are late in germination and slow in growth, and the secondary growth of the regenerated seedlings is restricted. The traditional alignment mode and the stubble surface combing and guiding mode of the regenerated rice stubble are mainly manually assisted, the workload is large, the operation efficiency is low, and the method is not suitable for large-area planting. Therefore, the realization of the straightening and combing of the stubble in the harvest process of the first season ratoon rice becomes the core problem of improving the yield of the ratoon rice in the harvest season. Therefore, a device which can realize stubble remaining and righting and combing and guiding in the harvest process of first-season ratooning rice and can realize automatic height adjustment according to the operation requirement needs to be designed.
Disclosure of Invention
The invention aims to provide an automatic stubble supporting and combing device for ratooning rice, which aims to realize the integrated operation of stubble supporting and combing and guiding in the mechanized harvesting process of the ratooning rice in the current first season, thereby improving the yield of the ratooning rice in the regeneration season, automatically adjusting the height according to the operation requirement, lightening the operation intensity of a driver and improving the benefit.
The invention realizes the purpose through the following technical scheme:
an automatic stubble holding, combing and guiding device for ratoon rice is characterized by mainly comprising a frame, a power system, a combing and guiding device, a stubble holding device, a clutch linkage switch and a height adjusting system; the frame can be fixed at the tail of the ratooning rice combine harvester, and the clutch linkage switch is positioned on the control console;
the height adjusting system comprises a height adjustable support, a lifting device, a controller and an ultrasonic sensor; the height-adjustable support is fixed on the rack, the end part of the lifting device is connected with the height-adjustable support and is used for adjusting the height of the height-adjustable support, the ultrasonic sensor is arranged at the lower part of the height-adjustable support and is connected with the controller and is used for detecting the ground clearance of the stubble holding and combing device and conveying the detected ground clearance to the controller;
the power system comprises a driving motor, a driving wheel, a driven wheel and a rotating shaft, wherein the driving motor is fixed on the rack, the rotating shaft is arranged on the height-adjustable bracket, the driving wheel is arranged on an output shaft of the driving motor, the driven wheel is arranged on the rotating shaft, and the driving wheel drives the driven wheel to rotate;
the stubble supporting device comprises a width disc, a stubble supporting rod, a stubble supporting shifting tooth, a first width plate, a second width plate, a side width disc and a crank; the two amplitude discs are fixed on the rotating shaft, the distance between the two amplitude discs is equal to the width of the crawler belt, and a plurality of first amplitude plates are uniformly fixed on the two amplitude discs in the circumferential direction respectively; two ends of the stubble holding rod are rotatably arranged on the first breadth plates on the two breadth plates; the side breadth plate and the breadth plate are eccentrically arranged and rotatably arranged on the rotating shaft, and a plurality of second breadth plates are uniformly fixed on the side breadth plate in the circumferential direction; two ends of the crank are respectively and rotatably connected with free ends of the first and second amplitude plates, and one end of the crank is fixedly connected with the stubble supporting rod; the stubble supporting and poking teeth which rotate to the lower stubble supporting rod always point to the rear end of the harvester, and the included angle between the extension line of the stubble supporting and the ground is an acute angle; the two stubble supporting devices are arranged on the rotating shaft and respectively correspond to the positions behind the crawler of the ratoon rice combine harvester;
the comb guide device comprises a comb guide rod, comb guide teeth and a mounting frame, the comb guide rod is fixed on the parallelogram hinged frame through the mounting frame, three comb guide sections are arranged on the comb guide rod, and a plurality of comb guide teeth are uniformly fixed on the comb guide sections; the three sections of dredging sections and the two sections of stubble supporting sections are arranged at intervals, and the total length of the three sections of dredging sections and the two sections of stubble supporting sections is equal to the width of a harvester cutting table.
Furthermore, the stubble supporting poking teeth and the combing and guiding teeth are both composed of straight line sections and bent sections, the bent sections of the stubble supporting poking teeth are close to the stubble supporting rods, and the bent sections of the combing and guiding teeth are close to the combing and guiding rods; the bending directions of the stubble supporting poking teeth and the comb guide teeth are opposite, the tooth tips of the stubble supporting poking teeth point to the rear of the harvester, and an included angle between an extension line of a straight line section of the stubble supporting poking teeth and the ground is an acute angle.
Furthermore, the stubble supporting poking teeth and the comb guide teeth are made of flexible materials such as rubber or nylon.
Furthermore, the lowest position of the stubble supporting poking teeth is 20-30 mm higher than the ground surface; the lowest position of the comb guide teeth is lower than the stubble height by 30-60 mm.
Furthermore, the lifting device is a hydraulic cylinder, the controller is a hydraulic controller, and the hydraulic cylinder is controlled by the hydraulic controller; or,
the lifting device is an electric push rod, the controller is an electric control unit, and the electric push rod is connected with the electric control unit.
Furthermore, the driving wheel and the driven wheel are driven by a belt; or,
the driving wheel and the driven wheel are gears or chain wheels, and the driving wheel and the driven wheel are driven by racks or chains.
Furthermore, the height-adjustable support is two parallelogram hinged frames, first side frames of the two parallelogram hinged frames are fixed at two ends of the rack, one end of the lifting device is hinged to the first side frame, and the other end of the lifting device is hinged to a first upper frame adjacent to the first side frame; the ultrasonic sensor is arranged at the lower part of a second side frame parallel to the first side frame in the parallelogram hinged frame; and two ends of the rotating shaft are arranged on the second side frames of the two parallelogram hinged frames.
Furthermore, two ends of the stubble supporting rod are arranged on the first amplitude plate through bearings; the crank is hinged with the first web plate and the second web plate; the rotating shaft is connected with the parallelogram hinged frame through a bearing, and the driven wheel is positioned in the middle of the rotating shaft.
The regulation and control method of the automatic stubble-supporting combing and guiding device for the ratooning rice is characterized in that,
when the controller detects that the clutch linkage switch is switched on, the controller controls the lifting device to work, drives the stubble holding and combing device to descend to a preset working initial position, drives the motor to operate, and starts to carry out stubble holding and combing operation; if the clutch linkage switch is detected to be not conducted, the lifting device is controlled to work to drive the stubble supporting and combing and guiding device to be lifted to a preset initial position in a non-working state;
under the on-state of the clutch linkage switch, the ultrasonic sensor detects the ground clearance and transmits the ground clearance to the controller, abnormal data are eliminated through the controller, and the minimum value of effective data is selected; the controller calculates the height adjustment amount, the lifting device is controlled to realize the height adjustment of the stubble supporting combing and guiding device, and the stubble supporting combing and guiding device is lifted or lowered to the normal working range of the height above the ground.
The invention has the following beneficial effects:
the stubble holding and combing integrated harvester can hold the stubble rolled by the crawler belt or the wheel type traveling device while harvesting the ratoon rice in the first season, and synchronously comb and guide the stubble which is not rolled but has impurities accumulated on the surface, thereby effectively realizing the integration of harvesting and holding the stubble and combing and guiding the ratoon rice and further improving the yield of the ratoon rice in the regeneration season.
The invention can adjust the lifting of the movable stubble supporting combing and guiding device through the hydraulic cylinder according to the operation requirement when the harvester is not in harvesting operation or crossing barriers such as ridges, so that the device does not influence the normal running of the harvester, and the manual disassembly and adjustment are not needed.
The stubble supporting combing and guiding device can automatically detect and adjust the height of the stubble supporting combing and guiding device through ultrasonic array detection, has a simple control mode and convenient operation, is more accurate and efficient compared with manual adjustment, has a flexible and flexible adjustment mode, and greatly reduces the labor intensity of a driver.
Drawings
FIG. 1 is a schematic structural view of a stubble supporting combing and guiding device according to the present invention;
FIG. 2 is a top view of the stubble holding combing and guiding device of the present invention during operation;
FIG. 3 is a schematic view of the stubble supporting device according to the present invention;
FIG. 4 (a) is a view showing an initial position of the automatic stubble supporting and combing device according to the present invention; (b) is a working position diagram of the automatic rice stubble supporting combing and guiding device;
fig. 5 is a control flow chart of the height adjusting system.
Reference numerals:
1. a frame; 2. a motor table; 3. a drive motor; 4. a driven wheel; 5. a belt; 6. a parallelogram hinge bracket; 6-1, a first side frame; 6-2, a first upper frame; 6-3, a second side frame 7, a combing and guiding device; 7-1, combing the guide rod; 7-2, combing and guiding teeth; 7-3, mounting a frame; 8. a hydraulic cylinder; 9. a stubble supporting device; 9-1. disc; 9-2, supporting the stubble rod; 9-3, supporting the stubble and poking the teeth; 9-4. a first web; 9-5. a second web; 9-6. side breadth disc; 9-7. a crank; 10. a driven wheel; 11. an ultrasonic sensor; 12. a clutch linkage switch; 13. and rotating the shaft.
Detailed Description
The invention will be further described with reference to the following figures and specific examples, but the scope of the invention is not limited thereto.
Fig. 1 shows an embodiment of the automatic stubble lifting combing and guiding device for ratooning rice according to the invention. The automatic stubble-holding combing and guiding device for the ratooning rice shown in the figure 1 comprises a frame 1, a motor platform 2, a driving motor 3, a driving wheel 4, a driven wheel 10, a belt 5, a parallelogram hinged frame 6, a combing and guiding device 7, a hydraulic cylinder 8, a stubble-holding device 9, a clutch linkage switch 12, a hydraulic controller and an ultrasonic sensor 11.
The parallelogram articulated frame 6, the hydraulic cylinder 8, the hydraulic controller and the ultrasonic sensor form a height adjusting system. In this embodiment the parallelogram linkage 6 acts as a height adjustable support, the hydraulic cylinder 8 acts as a lifting device and the hydraulic controller as a controller for controlling the hydraulic cylinder 8. The first side frames 6-1 of the two parallelogram hinged frames 6 are fixed at two ends of the frame 1, one end of the hydraulic cylinder 8 is hinged with the first side frame 6-1, and the other end is hinged with the first upper frame 6-2 adjacent to the first side frame 6-1. The ultrasonic sensor 11 is arranged at the lower part of a second side frame 6-3 parallel to the first side frame 6-1 in the parallelogram articulated frame 6. The ultrasonic sensor 11 is connected with the hydraulic controller, and is used for detecting the ground clearance of the device and transmitting the ground clearance to the hydraulic controller. The number of the ultrasonic sensors 11 is a plurality of, and the ultrasonic sensors 11 on the two parallelogram hinge brackets 6 are all arranged in an array.
The driving motor 3, the belt 5, the driving wheel 4, the driven wheel 10 and the rotating shaft 13 form a power system. The driving motor 3 is arranged on the motor platform 2, and the motor platform 2 is welded on the frame 1. The frame 1 is welded at the tail part of the ratooning rice combine, and the clutch linked switch 12 is positioned on the control board. The driving wheel 4 is arranged on an output shaft of the driving motor 3, the driven wheel 10 is arranged on a rotating shaft 13, and two ends of the rotating shaft 13 are arranged on second side frames 6-3 of the two parallelogram hinged frames 6. The rotating shaft 13 is connected with the parallelogram hinged frame 6 through a bearing, and the driven wheel 10 is positioned at the right middle of the rotating shaft 13. The driving wheel 4 drives the driven wheel 10 to rotate and is connected with the driven wheel through a belt 5.
The combing and guiding device 7 and the stubble holding device 9 are both arranged on the parallelogram hinged frame 6, the parallelogram hinged frame 6 drives the stubble holding device 9 and the combing and guiding device 7 to carry out lifting adjustment through the extension and retraction of the hydraulic cylinder 8, and the device only changes the longitudinal height and can not incline. The automatic stubble supporting device is divided into 3 sections of comb guide teeth and 2 sections of stubble supporting sections which are arranged alternately, the total length of the automatic stubble supporting device is equal to the width of a cutting table of the harvester, and the stubble supporting sections correspond to the width of crawler belts on two sides of the combine harvester, as shown in figure 2.
The stubble supporting device 9 comprises a width disc 9-1, a stubble supporting rod 9-2, a stubble supporting shifting tooth 9-3, a first width plate 9-4, a second width plate 9-5, a side width disc 9-6 and a crank 9-7. The two width discs 9-1 are fixed on the rotating shaft 13, and the distance between the two width discs 9-1 is equal to the width of the crawler belt. A plurality of first amplitude plates 9-4 are respectively and uniformly fixed on the two amplitude plates 9-1 in the circumferential direction; two ends of the stubble holding rod 9-2 are rotatably arranged on the first web plates 9-4 on the two web plates 9-1. The side width disc 9-6 and the width disc 9-1 are eccentrically arranged and rotatably arranged on the rotating shaft 13, and a plurality of second width plates 9-5 are uniformly fixed on the side width disc 9-6 in the circumferential direction; two ends of the crank 9-7 are respectively rotatably connected with the free ends of the first web plate 9-4 and the second web plate 9-5, and one end of the crank is fixedly connected with the stubble supporting rod 9-2. The stubble supporting poking teeth 9-3 rotated to the lower stubble supporting rod 9-2 are always pointed to the rear end of the harvester, and the included angle between the extension line of the stubble supporting poking teeth and the ground is an acute angle. The two stubble supporting devices 9 are arranged on the rotating shaft 13 and respectively correspond to the positions behind the crawler belts of the ratoon rice combine harvester. The single stubble supporting device 9 corresponds to a stubble supporting section, and the length of the stubble supporting device is the same as the width of the crawler belt on one side of the harvester.
In this embodiment the number of first webs 9-4 on both webs 9-1 and the second web 9-5 on the side web 9-6 is 8. The breadth disc 9-1, the first breadth plate 9-4, the side breadth disc 9-6, the second breadth plate 9-5 and the crank 9-7 are a plurality of parallelogram connecting rods, so that the stubble supporting poking teeth 9-3 can always keep the installation angle to rotate when rotating along with the stubble supporting device 9, the motion trail is a trochoid, and as shown in figure 3, the action of pushing the rolled residual stubble backwards is realized, and the supporting of the residual stubble is facilitated.
The comb guide device 7 comprises a comb guide rod 7-1, comb guide teeth 7-2 and a mounting frame 7-3, the comb guide rod 7-1 is fixed on the parallelogram hinge frame 6 through the mounting frame 7-3, and the mounting frame 7-3 is fixed with a second side frame 6-3 of the parallelogram hinge frame 6. The comb guide rod 7-1 is provided with three comb guide sections, and a plurality of comb guide teeth 7-2 are uniformly fixed on the comb guide sections. The three sections of dredging sections and the two sections of stubble supporting sections are arranged at intervals, and the total length of the three sections of dredging sections and the two sections of stubble supporting sections is equal to the width of a harvester cutting table.
The stubble supporting poking teeth 9-3 and the comb guide teeth 7-2 are plastic components made of plastic flexible materials. The stubble supporting poking teeth 9-3 and the comb guide teeth 7-2 are both composed of straight line sections and bent sections, the bent sections of the stubble supporting poking teeth 9-3 are close to the stubble supporting rods 9-2, and the bent sections of the comb guide teeth 7-2 are close to the comb guide rods 7-1; the bending directions of the stubble supporting poking teeth 9-3 and the comb guide teeth 7-2 are opposite, the tooth tips of the stubble supporting poking teeth 9-3 point to the rear of the harvester, and the included angle between the extension line of the straight line sections of the stubble supporting poking teeth 9-3 and the ground is an acute angle.
In addition, as another embodiment of the present invention, the lifting device may further adopt an electric push rod, the controller is an electric control unit, and the electric push rod is connected to the electric control unit. The driving wheel 4 and the driven wheel 10 are gears or chain wheels, and the driving wheel 4 and the driven wheel 10 are driven by racks or chains.
As shown in fig. 4, the automatic stubble holding combing and guiding device is in a non-working state when not working, and the device is lowered from the non-working state to a working initial position when working. The stubble remaining and supporting poking teeth 9-3 used for supporting the crawler belt after rolling are arranged at the working position, and the lowest position of the stubble remaining and supporting poking teeth is 20-30 mm higher than the horizontal ground; the comb guide teeth 7-2 are used for combing and guiding sundry residues on the stubble left without being rolled between the tracks on the two sides, and the lowest position of the comb guide teeth is lower than the height of the stubble left by 30-60 mm.
The regulating method of the automatic stubble holding, combing and guiding device for the ratooning rice is shown in fig. 5, when the controller detects that the clutch linked switch 12 is switched on, the controller controls the lifting device to work, drives the stubble holding, combing and guiding device to descend to a preset working initial position, drives the motor to operate, and starts to carry out stubble holding, combing and guiding operation; if the clutch linkage switch 12 is detected to be non-conductive, the lifting device is controlled to work to drive the stubble supporting comb guide device to be lifted to a preset initial position in a non-working state, as shown in fig. 4.
Under the state that the clutch linkage switch 12 is switched on, the ultrasonic sensor detects the height from the ground and transmits the height to the controller, abnormal data are eliminated through the controller, and the minimum value of effective data is selected; the controller calculates the height adjustment amount, the lifting device is controlled to realize the height adjustment of the stubble supporting combing and guiding device, and the stubble supporting combing and guiding device is lifted or lowered to the normal working range of the height above the ground.
Setting the non-working state position and the working initial position of the automatic stubble holding combing and guiding device, taking the distance between the center of a breadth plate of the stubble holding device and the ground as the standard, and setting the distance to be L in the non-working state1L 'at the beginning of operation'1. When the harvester moves at a speed v and the clutch linkage switch 12 is detected to be switched on, the stubble supporting and combing device is driven by the hydraulic cylinder to descend to the initial working position, and the driving motor drives the stubble supporting device to rotate at an angular speed omega to start stubble supporting and combing operation. The ultrasonic sensors 11 distributed in an array mode detect the height from the ground, abnormal data are removed through a hydraulic controller, the minimum value of effective data is selected, the height amount needing to be adjusted is calculated under the condition that the clutch linkage switch 12 is continuously conducted, the height is adjusted through controlling a hydraulic cylinder, and then detection is continuously carried out.
In the process of stubble supporting and combing operation, the ultrasonic sensors 11 distributed in an array manner detect the ground clearance in real time, before whether the ground clearance of the device needs to be adjusted or not is judged, if the clutch linkage switch is detected to be not conducted, the driving motor stops running immediately, and the device is driven by the hydraulic cylinder to be lifted to a non-working state position so as to avoid influencing the normal running of the harvester.
The present invention is not limited to the above-described embodiments, and any obvious improvements, substitutions or modifications can be made by those skilled in the art without departing from the spirit of the present invention.
Claims (10)
1. An automatic stubble holding and combing device for ratoon rice is characterized by mainly comprising a frame (1), a power system, a combing and guiding device (7), a stubble holding device (9), a clutch linkage switch (12) and a height adjusting system; the frame (1) can be fixed at the tail of the ratooning rice combine harvester, and the clutch linked switch (12) is positioned on the control console;
the height adjusting system comprises a height adjustable support, a lifting device, a controller and an ultrasonic sensor (11); the height-adjustable support is fixed on the frame (1), the end part of the lifting device is connected with the height-adjustable support and used for adjusting the height of the height-adjustable support, the ultrasonic sensor (11) is arranged at the lower part of the height-adjustable support, and the ultrasonic sensor (11) is connected with the controller and used for detecting the ground clearance of the stubble supporting and combing device and conveying the detected ground clearance to the controller;
the power system comprises a driving motor (3), a driving wheel (4), a driven wheel (10) and a rotating shaft (13), the driving motor (3) is fixed on the rack (1), the rotating shaft (13) is arranged on a height-adjustable support, the driving wheel (4) is arranged on an output shaft of the driving motor (3), the driven wheel (10) is arranged on the rotating shaft (13), and the driving wheel (4) drives the driven wheel (10) to rotate;
the stubble supporting device (9) comprises a breadth disc (9-1), a stubble supporting rod (9-2), a stubble supporting shifting tooth (9-3), a first breadth plate (9-4), a second breadth plate (9-5), a side breadth disc (9-6) and a crank (9-7); the two amplitude discs (9-1) are fixed on the rotating shaft (13), the distance between the two amplitude discs (9-1) is equal to the width of the crawler belt, and a plurality of first amplitude plates (9-4) are uniformly fixed on the two amplitude discs (9-1) in the circumferential direction respectively; two ends of the stubble supporting rod (9-2) are rotatably arranged on the first breadth plates (9-4) on the two breadth plates (9-1); the side breadth plate (9-6) and the breadth plate (9-1) are eccentrically arranged and rotatably arranged on the rotating shaft (13), and a plurality of second breadth plates (9-5) are uniformly fixed on the side breadth plate (9-6) in the circumferential direction; two ends of a crank (9-7) are respectively rotatably connected with the free ends of the first web plate (9-4) and the second web plate (9-5), and one end of the crank is fixedly connected with a stubble supporting rod (9-2); the stubble supporting poking teeth (9-3) which rotate to the lower stubble supporting rod (9-2) always point to the rear end of the harvester, and the extension line of the stubble supporting poking teeth forms an acute angle with the ground; the two stubble supporting devices (9) are arranged on the rotating shaft (13) and respectively correspond to the positions behind the crawler belts of the ratoon rice combine harvester;
the comb guide device (7) comprises a comb guide rod (7-1), comb guide teeth (7-2) and a mounting frame (7-3), the comb guide rod (7-1) is fixed on the parallelogram hinged frame (6) through the mounting frame (7-3), three comb guide sections are arranged on the comb guide rod (7-1), and the comb guide sections are uniformly fixed with a plurality of comb guide teeth (7-2); the three sections of dredging sections and the two sections of stubble supporting sections are arranged at intervals, and the total length of the three sections of dredging sections and the two sections of stubble supporting sections is equal to the width of a harvester cutting table.
2. The automatic stubble holding and combing device for the ratooning rice as claimed in claim 1, wherein the stubble holding thumb tooth (9-3) and the combing finger tooth (7-2) are both composed of a straight line segment and a curved segment, the curved segment of the stubble holding thumb tooth (9-3) is close to the stubble holding rod (9-2), and the curved segment of the combing finger tooth (7-2) is close to the combing finger rod (7-1); the bending directions of the stubble supporting poking teeth (9-3) and the comb guide teeth (7-2) are opposite, the tooth tips of the stubble supporting poking teeth (9-3) point to the rear of the harvester, and an included angle between the extension line of the straight line section of the stubble supporting poking teeth (9-3) and the ground is an acute angle.
3. The automatic stubble holding and combing device for ratooning rice as claimed in claim 1, wherein the stubble holding pick-up teeth (9-3) and the combing and guiding teeth (7-2) are made of flexible materials such as rubber or nylon.
4. The automatic stubble holding and combing device for the ratooning rice as claimed in claim 1, wherein the lowest position of the stubble holding poking teeth (9-3) is 20-30 mm higher than the ground surface; the lowest position of the comb guide teeth (7-2) is lower than the stubble height by 30-60 mm.
5. The automatic stubble lifting and combing device for the ratooning rice as claimed in claim 1, wherein the lifting device is a hydraulic cylinder (8), the controller is a hydraulic controller, and the hydraulic cylinder (8) is controlled by the hydraulic controller; or,
the lifting device is an electric push rod, the controller is an electric control unit, and the electric push rod is connected with the electric control unit.
6. The automatic stubble lifting and combing device for the ratoon rice as claimed in claim 1, wherein the driving wheel (4) and the driven wheel (10) are driven by a belt (5); or,
the driving wheel (4) and the driven wheel (10) are gears or chain wheels, and the driving wheel (4) and the driven wheel (10) are in transmission through racks or chains.
7. The automatic stubble lifting and combing device for the ratoon rice as claimed in claim 1, wherein the height-adjustable bracket is two parallelogram hinged brackets (6), the first side frames (6-1) of the two parallelogram hinged brackets (6) are fixed at two ends of the frame (1), one end of the lifting device is hinged to the first side frame (6-1), and the other end of the lifting device is hinged to the first upper frame (6-2) adjacent to the first side frame (6-1); the ultrasonic sensor (11) is arranged at the lower part of a second side frame (6-3) parallel to the first side frame (6-1) in the parallelogram hinged frame (6); two ends of the rotating shaft (13) are arranged on the second side frames (6-3) of the two parallelogram hinged frames (6).
8. The automatic stubble holding and combing device for ratooning rice as claimed in claim 7, wherein both ends of the stubble holding rod (9-2) are mounted on the first web (9-4) through bearings; the crank (9-7) is connected with the first web (9-4) and the second web (9-5) through hinges.
9. The automatic stubble lifting and combing device for the ratooning rice as claimed in claim 7, wherein the rotating shaft (13) is connected with the parallelogram hinged frame (6) through a bearing, and the driven wheel (10) is positioned in the middle of the rotating shaft.
10. The method for regulating and controlling the automatic stubble supporting and combing device of the ratoon rice as claimed in claim 1,
when the controller detects that the clutch linkage switch (12) is switched on, the controller controls the lifting device to work, drives the stubble holding and combing device to descend to a preset working initial position, drives the motor to operate, and starts to carry out stubble holding and combing operation; if the clutch linkage switch (12) is detected to be not conducted, the lifting device is controlled to work to drive the stubble lifting combing and guiding device to be lifted to a preset initial position in a non-working state;
under the state that the clutch linkage switch (12) is switched on, the ultrasonic sensor detects the height from the ground and transmits the height to the controller, abnormal data are eliminated through the controller, and the minimum value of effective data is selected; the controller calculates the height adjustment amount, the lifting device is controlled to realize the height adjustment of the stubble supporting combing and guiding device, and the stubble supporting combing and guiding device is lifted or lowered to the normal working range of the height above the ground.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911189493.7A CN111296049A (en) | 2019-11-28 | 2019-11-28 | Automatic stubble supporting, combing and guiding device for ratoon rice and regulating and controlling method thereof |
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| CN201911189493.7A CN111296049A (en) | 2019-11-28 | 2019-11-28 | Automatic stubble supporting, combing and guiding device for ratoon rice and regulating and controlling method thereof |
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| CN118583101A (en) * | 2024-07-29 | 2024-09-03 | 山东阳信润丰农业科技有限公司 | Stubble height metering device for stubble cleaning |
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