Regenerated rice stubble righting device

A technology of ratooning rice and stubble retention, which is applied in the lifting device of agricultural machinery, agriculture, application, etc. It can solve the problems of heavy workload, affecting the germination of rice regeneration tillers, and not suitable for large-area paddy fields, and achieve the effect of increasing adaptability

Active Publication Date: 2020-12-04
HUAZHONG AGRICULTURAL UNIVERSITY
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AI-Extracted Technical Summary

Problems solved by technology

[0002] When the harvester is harvesting ratooning rice in the field, the stubble of ratooning rice will fall down due to the rolling of the track or wheels of the harvester. If this part of the lodging stubble is not righted, it will affect the germination of the ratooning til...
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Method used

In above-mentioned technical scheme, righting wheel mechanism 6 comprises the rotating shaft 6.1 that is set on the free end 3.2 of two movable connecting rods 3, the wheel hub 6.2 that is fixedly arranged on rotating shaft 6.1 two ends, and along wheel hub 6.2 peripheral evenly spaced Combing needles 6.3 arranged in rows or rows, the middle part of the rotating shaft 6.1 is fixedly provided with a first sprocket 6.4, and the first sprocket 6.4 is in transmission connection with the second sprocket 11 arranged on the output shaft of the motor 2 through the chain 7 . The hub 6.2 is a cylindrical hub with an axial center hole 12, and the two ends of the rotating shaft 6.1 can respectively pass through the axial center holes 12 of the hubs 6.2 on both sides and be fixedly connected thereto. The comb needle 6.3 is composed of a needle bar 6.31 in the form of a slender rod and a spherical needle head 6.32. One end of the needle bar 6.31 is fixedly connected with the outer surface of the wheel hub 6.2, and the other end of the needle bar 6.31 is fixedly connected with the needle head 6.32. The front end of the comb needle 6.3 of the present invention is designed to be spherical, which increases the contact area with the...
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Abstract

The invention discloses a ratoon rice stubble righting device. The ratoon rice stubble righting device comprises a rack table, a motor arranged on the rack table, and two movable connecting rods obliquely arranged on the lower portion of the rear side of the rack table and hinged to the rack table. Each movable connecting rod is provided with a hinge end and a free end, the hinge end of each movable connecting rod is hinged to the lower portion of the rear side of the rack table through a pin shaft assembly, a profiling wheel is arranged on the lower portion of the free end of each movable connecting rod in a rolling mode, a righting wheel mechanism vertically penetrates through the position between the free ends of the two movable connecting rods, and the motor and the righting wheel mechanism are in drive connection through a chain. The flexible righting wheel mechanism is adopted, stubble is righted on the premise of not damaging the rice stubble, the working effect of the righting device is guaranteed through the design of the profiling structure, the righting device is used in cooperation with a harvester, operation is convenient, ratoon rice harvesting and righting integration can be achieved, and manpower and material resources are saved.

Application Domain

Agricultural lifting devices

Technology Topic

Agricultural engineeringMaterial resources +3

Image

  • Regenerated rice stubble righting device
  • Regenerated rice stubble righting device
  • Regenerated rice stubble righting device

Examples

  • Experimental program(1)

Example Embodiment

[0023] The implementation of the present invention will be explained in detail with the following examples, but they do not constitute the limitation of the present invention, but are just examples. At the same time, it will become clearer and easier to understand by explaining the advantages of the present invention.
[0024] As shown in the figure, the device for righting the stubble of reclaimed rice of the present invention is installed at the tail of a harvester 15 for righting the stubble of reclaimed rice, and it includes a frame platform 1 fixedly connected with the chassis at the tail of the harvester 15, a motor 2 arranged on the frame platform 1, and two movable connecting rods 3 obliquely arranged below the rear side of the frame platform 1 and hinged with it. Both the frame platform 1 and the movable connecting rods 3 are metal members made of metal materials. Each movable link 3 has a hinged end 3.1 and a free end 3.2. The hinged end 3.1 of each movable link 3 is hinged with the lower part of the back side of the frame table 1 through a pin shaft assembly 4. A profiling wheel 5 is rolled under the free end 3.2 of each movable link 3. A centering wheel mechanism 6 is vertically inserted between the free ends 3.2 of two movable links 3, and the motor 2 and the centering wheel mechanism 6 are in transmission connection through a chain 7. A first spring hook 8 is arranged below each movable link 3 near the hinged end 3.1, and a second spring hook 9 matched with the first spring hook 8 is arranged on both sides of the bottom end of the frame table 1, and a tension spring 10 is arranged between the first spring hook 8 and the second spring hook 9. In this way, the profiling wheel 5 is placed under the free end 3.2 of the movable link 3, directly contacting with the ground, and a tension spring 10 is arranged between the movable link 3 and the frame platform 1 for hooking. When the field terrain is uneven, the profiling wheel drives the movable link 3 to adjust its position up and down, thus maintaining the stability of the height of the centering wheel mechanism 6 and the ground. Moreover, the profiling wheel 5 can be reset by the tension spring 10 when the height is adjusted, thus increasing the adaptability of the device to the terrain.
[0025]In the above technical scheme, the centering wheel mechanism 6 comprises a rotating shaft 6.1 penetrating through the free ends 3.2 of two movable links 3, hubs 6.2 fixedly arranged at both ends of the rotating shaft 6.1, and comb needles 6.3 arranged in rows or rows at even intervals along the periphery of the hubs 6.2. The middle of the rotating shaft 6.1 is fixedly provided with a first sprocket 6.4, which is in transmission connection with a second sprocket 11 arranged on the output shaft of the motor 2 through a chain 7. The hub 6.2 is a cylindrical hub with an axial central hole 12, and the two ends of the rotating shaft 6.1 can respectively penetrate through the axial central holes 12 of the hubs 6.2 on both sides and be fixedly connected with them. The comb 6.3 is composed of a slender rod-shaped needle bar 6.31 and a spherical needle 6.32, one end of which is fixedly connected with the outer surface of the hub 6.2, and the other end of which is fixedly connected with the needle 6.32. The front end of the comb needle 6.3 of the invention is designed to be spherical, which increases the contact area with the rice stubble. When straightening, friction is generated between the comb needle and the rice stubble, and at the same time, the rotation direction of the comb needle is opposite to the stubble overturning direction, thus straightening the rice stubble overwhelmed by the crawler belt of the harvester. The comb needle 6.3 is a rubber member made of rubber flexible material. The free end 3.2 of each movable link 3 is provided with a mounting hole 13 for the rotating shaft 6.1 to pass through, and the rotating shaft 6.1 is mounted in the mounting hole 13 through a bearing 14. The lowest point of the comb 6.3 and the lowest point of the profiling wheel 5 are both on the same level as the ground, and the axial length of each hub 6.2 is the same as the track width of the harvester 15. According to the invention, the flexible righting wheel mechanism 6 is adopted to righting the stubble without damaging the stubble of rice; meanwhile, the design of the profiling structure also ensures the working effect of the righting device and is used together with a harvester, so that the operation is convenient, the integration of harvesting and righting of ratoon rice can be realized, and manpower and material resources are saved.
[0026] The above are only the specific embodiments of the present invention, and it should be pointed out that any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the scope of protection of the present invention.

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