Regenerated rice stubble righting device

[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.