Tobacco and wheat separating device for interplanting and harvesting

Abstract

The invention relates to the technical field of field interplanting, in particular to a tobacco and wheat separating device for interplanting and harvesting, which comprises a moving vehicle operating between tobacco ridges, a storage bin is arranged on the moving vehicle, and a straw cutting tool for cutting off wheat straws is arranged at an inlet of the storage bin towards the advancing direction. The ends, in the advancing direction, of the two vertical side walls, parallel to tobacco ridges, of the storage bin extend to be provided with separation frames, the ends of the two separation frames are bent oppositely and then integrally connected with gathering frames, and the free ends of the two gathering frames are close oppositely and extend to the two sides of the periphery of the stalk cutting tool. The separating frame and the gathering frame which are connected with each other are provided with a plurality of outer inclined long holes and inner inclined long holes respectively, and the inner inclined long holes are communicated with the ends of the corresponding outer inclined long holes and are opposite in inclined direction. The device is simple in structure, leaves and wheat of interplanted tobacco plants and wheat can be effectively separated in the moving process, the tobacco plant leaves are prevented from being rolled by a wheat harvesting carrier due to the fact that the leaves of the tobacco plants are too long, and meanwhile it is guaranteed that the wheat on the ridge side is collected and harvested.

Description

Technical Field

[0001] This invention relates to the field of intercropping technology, and in particular to a tobacco and wheat separation device for intercropping and harvesting. Background Technology

[0002] In the wheat-tobacco intercropping model, the planting locations of tobacco and wheat are determined by the characteristics of the ridge structure and the growth requirements of the crops. Tobacco requires a well-drained environment, and planting on ridges can prevent waterlogging at the roots, while also thickening the topsoil and increasing soil temperature, which is beneficial for the root development of tobacco seedlings. Wheat, on the other hand, needs areas with good water retention. The low-lying furrows reduce water evaporation, ensuring seed germination and seedling growth. In this strip intercropping model, wheat is planted in the furrows of the tobacco ridges. Winter wheat is sown in October-November and harvested in June of the following year, while tobacco leaves are transplanted around March, and the top leaves are harvested in September-October. Therefore, the intercropping of tobacco and wheat can achieve efficient land use throughout the year.

[0003] However, in practice, the intercropping of tobacco and wheat in the field is quite extensive. To reduce operational difficulty, tobacco seedlings are often planted without ridges, and the transplanting time is significantly delayed, resulting in insufficient growth time for the tobacco plants and poor quality. Alternatively, tobacco ridges are prepared before wheat planting, and the tobacco plants are transplanted later in a pit-like manner, which can better ensure tobacco plant growth. However, after a long period of wheat planting, the height and quality of the prepared tobacco ridges decrease. Furthermore, by the time wheat is harvested, the tobacco seedlings are also in their vigorous growth stage, with some leaves being too long and interfering with the position of the wheat on the ridge side, affecting the harvest of that portion of the wheat. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a tobacco-wheat separation device for intercropping and harvesting. The present invention has a simple structure and can effectively separate the leaves and wheat of intercropped tobacco plants and wheat during the movement process, preventing the tobacco plant leaves from being crushed by the wheat harvesting vehicle due to excessive length, while ensuring that the wheat on the ridge side is gathered and harvested.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A tobacco and wheat separation device for intercropping and harvesting includes a mobile vehicle that operates between tobacco rows. The mobile vehicle is equipped with a storage bin, and the inlet of the storage bin facing the direction of travel is equipped with a stalk-cutting knife for cutting wheat straw. The two vertical sidewalls of the storage bin, parallel to the tobacco row, are each provided with a separation frame at one end in the direction of travel. The ends of the two separation frames are bent towards each other and integrally connected with a gathering frame. The free ends of the two gathering frames approach each other and extend to both sides of the outer periphery of the stalk-cutting knife. The interconnected separating frame and gathering frame are provided with several external oblique elongated holes and internal oblique elongated holes, respectively. The internal oblique elongated holes are connected to the ends of the corresponding external oblique elongated holes and are inclined in opposite directions.

[0006] Preferably, the gathering frame is rotatably provided with a toggle mechanism on the side near the corresponding separating frame.

[0007] Preferably, the actuating mechanism includes connecting seats fixed to the top and bottom of the gathering frame, bearings are mounted on the connecting seats, and the bearings on the two connecting seats are assembled with the two ends of the rotating shaft. The rotating shaft is equipped with a dial that acts on the wheat.

[0008] Preferably, the dial has several actuating arc rods evenly spaced circumferentially on its surface, and the actuating arc rods pass through the corresponding inner oblique elongated holes and extend to the space between the two gathering frames.

[0009] Preferably, the bearing is a one-way bearing.

[0010] Preferably, the rotating shaft is perpendicular to the inner oblique elongated hole, and the actuating discs on the two gathering frames are staggered.

[0011] Preferably, the outwardly inclined elongated hole is set at an acute angle to the horizontal plane and is inclined downward at the end pointing towards the moving vehicle.

[0012] The working process of this invention is as follows: During the movement of the mobile vehicle, two separating frames are set against the corresponding edges of the tobacco ridges. In this process, the wheat between ridges can be gathered and collected by the gathering frame. Simultaneously, if the leaves of the tobacco plants on the ridges are long and come into contact with the separating frame, they will be guided into the outer oblique holes as the separating frame moves. At the same time, some tilted wheat (such as lodged wheat) will be guided into the inner oblique holes as the gathering frame moves. Since the outer and inner oblique holes are tilted in opposite directions, the outer oblique holes guide the tobacco leaves downwards, while the inner oblique holes guide the wheat stalks upwards. This achieves the staggered separation of tobacco leaves and wheat at the ridge edges, and straightens and uprights tilted wheat, facilitating subsequent cutting operations by the stalk cutter.

[0013] During the above process, as the wheat continuously flows between the two gathering frames and contacts the actuating arc rod of the actuating disc, the actuating arc rod rotates under the squeezing action. At the same time, the one-way bearing ensures that the rotating shaft rotates in one direction and the two rotating shafts rotate in opposite directions, thereby further improving the gathering effect of the wheat and preventing the wheat from moving out of the gathering frame in the opposite direction.

[0014] Compared with the prior art, the present invention has the following advantages: 1) During operation, this invention can guide and separate the tobacco leaves and wheat on the side of the tobacco ridge, effectively protecting the tobacco leaves; 2) During the operation, the present invention can concentrate and gather wheat between the rows as much as possible, which can improve the harvesting efficiency of wheat. At the same time, the upward guide of the inner inclined length of the gathering frame can also lift up lodged wheat and reduce the rate of missed harvesting. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the tobacco and wheat separation device for intercropping and harvesting described in the specific implementation method; Figure 2 This is a schematic diagram showing the positions and structures of the separating frame, the gathering frame, and the moving vehicle in the device described in the specific embodiment; Figure 3 This is a schematic diagram of the connection structure between the gathering frame and the actuating mechanism described in the specific embodiment; Figure 4 This is an exploded structural diagram of the separation frame and the gathering frame described in a specific embodiment. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0017] like Figure 1-4 As shown, a tobacco-wheat intercropping and harvesting separation device includes a mobile vehicle 1 that operates between tobacco rows. The mobile vehicle 1 is equipped with a collection bin 11, and the inlet of the collection bin 11 facing the forward direction is equipped with a stalk-cutting blade 12 for cutting wheat straw. The two vertical side walls of the collection bin 11 parallel to the tobacco row are each provided with a separation frame 21 extending at one end in the forward direction. The ends of the two separation frames 21 are bent towards each other and integrally connected to a gathering frame 22. The free ends of the two gathering frames 22 are close to each other and extend to both sides of the outer periphery of the stalk-cutting blade 12. The stalk-cutting blade 12 can adopt various forms of blades that can cut straw in the prior art, such as a blade shaft driven by a motor, with a blade disc coaxially provided at the bottom of the blade shaft.

[0018] The interconnected separating frame 21 and gathering frame 22 are provided with several external oblique long holes 23 and internal oblique long holes 24 respectively. The internal oblique long holes 24 are connected to the ends of the corresponding external oblique long holes 22 and are inclined in opposite directions. The external oblique long holes 23 are at an acute angle to the horizontal plane and are inclined downwards towards one end of the moving vehicle.

[0019] The gathering frame 22 is rotatably provided with a toggle mechanism on the side near the corresponding separating frame 21. The toggle mechanism includes connecting seats 3 fixed to the top and bottom of the gathering frame 22. One-way bearings are mounted on the connecting seats 3. The one-way bearings on the two connecting seats 3 are mounted to both ends of the rotating shaft 31. The rotating shaft 31 is perpendicular to the inner oblique elongated hole 24. The rotating shaft 31 is provided with a stirring disc 32 that acts on the wheat. Several stirring arc rods 33 are evenly spaced around the surface of the stirring disc 32. The stirring arc rods 33 pass through the corresponding inner oblique elongated holes 24 and extend to the space between the two gathering frames 22. The stirring discs 32 on the two gathering frames 22 are staggered.

[0020] The working process of this invention is as follows: During the movement of the mobile vehicle 1, the two separating frames 21 are set against the corresponding sides of the tobacco ridges. During this process, the wheat between the ridges can be gathered and collected by the gathering frame 22. At the same time, if the leaves of the tobacco plants on the ridges are long and come into contact with the separating frame 21, they will be guided into the outer oblique elongated hole 23 as the separating frame 21 moves. Meanwhile, some tilted wheat (such as lodged wheat) will be guided into the inner oblique elongated hole 24 as the gathering frame 22 moves. Since the outer oblique elongated hole 23 and the inner oblique elongated hole 24 are tilted in opposite directions, the tobacco leaves can be guided downward by the outer oblique elongated hole 23, and the wheat stalks can be guided upward by the inner oblique elongated hole 24. This achieves the staggered separation of tobacco leaves and wheat at the ridge side, and straightens and supports the tilted wheat, facilitating the subsequent cutting operation of the stalk cutter 11.

[0021] During the above process, as wheat continuously flows into the space between the two gathering frames 22 and contacts the actuating arc rod 33 of the actuating disc 32, the actuating arc rod 33 rotates under the squeezing action. At the same time, the one-way bearing ensures that the rotating shaft 31 rotates in one direction and the two rotating shafts 31 rotate in opposite directions, thereby further improving the gathering effect of wheat and preventing wheat from moving out of the gathering frame in the opposite direction.

Claims

1. A tobacco-wheat separation device for intercropping and harvesting, comprising a mobile vehicle operating between tobacco rows, the mobile vehicle having a collection bin and a stalk-cutting blade for cutting wheat straw at the inlet facing the direction of travel, characterized in that, The two vertical sidewalls of the storage bin parallel to the tobacco ridge are each provided with a separation frame at one end in the forward direction. The ends of the two separation frames are bent towards each other and integrally connected with a gathering frame. The free ends of the two gathering frames approach each other and extend to both sides of the outer periphery of the stalk cutting blade. The interconnected separating frame and gathering frame are provided with several external oblique elongated holes and internal oblique elongated holes, respectively. The internal oblique elongated holes are connected to the ends of the corresponding external oblique elongated holes and are inclined in opposite directions.

2. The tobacco and wheat separation device for intercropping and harvesting as described in claim 1, characterized in that, The gathering frame is equipped with a toggle mechanism on the side near the corresponding separating frame.

3. The tobacco and wheat separation device for intercropping and harvesting as described in claim 2, characterized in that, The actuating mechanism includes connecting seats fixed at the top and bottom of the gathering frame, bearings are mounted on the connecting seats, and the bearings on the two connecting seats are assembled with the two ends of the rotating shaft. The rotating shaft is equipped with a dial that acts on the wheat.

4. The tobacco and wheat separation device for intercropping and harvesting as described in claim 3, characterized in that, The dial has several actuating arc rods evenly spaced circumferentially on its surface. The actuating arc rods pass through the corresponding inner oblique elongated holes and extend to the space between the two gathering frames.

5. The tobacco and wheat separation device for intercropping and harvesting as described in claim 3, characterized in that, The bearing is a one-way bearing.

6. The tobacco and wheat separation device for intercropping and harvesting as described in claim 3, characterized in that, The rotating shaft and the inner oblique elongated hole are distributed perpendicularly, and the actuating discs on the two gathering frames are staggered.

7. The tobacco and wheat separation device for intercropping and harvesting as described in claim 1, characterized in that, The outwardly inclined elongated hole forms an acute angle with the horizontal plane and is inclined downwards at the end pointing towards the moving vehicle.

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