Crop sowing device in tobacco field interplanting mode

Abstract

The utility model belongs to the technical field of agricultural equipment, and particularly relates to a crop seeding device in a tobacco field interplanting mode, which comprises a plurality of groups of seeders rotationally connected with a rack through a rotating shaft, and each seeder consists of two discs and a connecting cylinder coaxially connected with the disc surfaces of the two discs. A plurality of seed falling through holes are formed in the barrel wall of the connecting barrel at equal intervals in the circumferential direction, the inner wall of the connecting barrel and the two discs form a containing space for containing crops to be planted, a feeding hopper is further arranged on the disc face of one disc of the seeder, and the feeding hopper is communicated with the containing space through a feeding hole preset in the corresponding disc face; the tobacco ridge ridger is simple in structure, designed according to the tobacco ridge layout structure, capable of being matched with a ridging mechanism to achieve tobacco field ridging and sowing crops in soil between ridges at the same time, high in mechanization degree and convenient to popularize in the later period.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural equipment, and in particular relates to a crop sowing device in a tobacco field intercropping mode. Background Art

[0002] To ensure sufficient arable land and crop yields, tobacco fields planted on ridges typically adopt a strategy tailored to local conditions, constructing intercropping patterns such as "tobacco + Chinese cabbage moss," "tobacco + wheat," "tobacco + sweet potato," "tobacco + bupleurum," and "tobacco + rapeseed," thereby fully utilizing idle land between and beside the ridges. Currently, the most mechanized phase in tobacco cultivation is ridge formation in mid-March, which coincides with the Bupleurum planting season (February to April in spring). Therefore, Bupleurum can be sown during ridge formation, allowing the production phase to begin after the tobacco plants are harvested. However, existing Bupleurum sowing techniques often rely on manual sowing, resulting in high labor costs. Utility Model Content

[0003] In response to the shortcomings of the existing technology, the purpose of the present invention is to provide a crop sowing device for the intercropping mode in tobacco fields. The present invention has a simple structure and is designed according to the layout structure of the tobacco ridges. It can cooperate with the ridge-forming mechanism to form ridges in the tobacco fields while sowing crops on the soil between the ridges. It has a high degree of mechanization and is easy to promote in the future.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A crop sowing device for intercropping in tobacco fields, comprising a plurality of seeders rotatably connected to a frame via a rotating shaft, the seeders comprising two discs and a connecting cylinder coaxially connecting the surfaces of the two discs, the connecting cylinder having a wall provided with a plurality of seeding holes circumferentially and evenly spaced therearound, and an inner wall of the connecting cylinder and the two discs forming a storage space for accommodating crop planting;

[0006] A feed hopper is also provided on a disc surface of the seeder, and the feed hopper is communicated with the accommodating space through a feed hole preset on the corresponding disc surface.

[0007] Preferably, the sides of the two discs are further connected by a plurality of connecting plates arranged at equal intervals in the circumferential direction. The connecting plates can not only improve the overall structural strength of the seeder, but also increase the contact area between the seeder and the plot.

[0008] Preferably, the connecting plates and the seed dropping holes are arranged in a staggered manner, thereby preventing the connecting plates from blocking the seeds that fall from the seed dropping holes and preventing the seeds from entering the soil.

[0009] Preferably, the connecting plate is further provided with convex ribs which can effectively contact the ground to ensure effective frictional contact between the connecting plate and the ground.

[0010] Preferably, the frame includes a traction rod for connecting the traction mechanism and a frame rod hinged to a preset hinge seat on the bottom surface of the traction rod, and one end of the frame rod away from the traction rod is assembled with the rotating shaft of the seeder through a preset bearing;

[0011] Two adjacent seeders are located on both sides of the tobacco ridge and are connected through the same rotating shaft. The traction rods corresponding to the two seeders and the frame rods are connected through a connecting rod.

[0012] Preferably, a tensioning mechanism is further provided on the top surface of one end of the frame rod away from the traction rod, and the tensioning mechanism includes a screw rod whose bottom end is connected to the top surface of the frame rod, and the top of the screw rod passes through a preset through hole on the traction rod and is screwed onto a limit nut, and a spring is further sleeved on the screw rod between the traction rod and the frame rod.

[0013] Preferably, the bottom end of the screw is vertically connected to the pin, and the pin is rotatably connected to a hinge seat preset on the rack rod.

[0014] Preferably, the screw rod body is further provided with a limiting flange above the pin shaft, the spring is always in a compressed state and its two ends respectively press against the top surface of the limiting flange and the bottom surface of the traction frame.

[0015] The working process of this utility model is as follows:

[0016] In the utility model, every two of the seeders form a seeding unit that can simultaneously seed both sides of a newly formed ridge. Specifically, first, the traction rod of the seeding unit is connected to the frame of the ridge former, and then the crop seeds are added to the accommodating space from the feed hopper.

[0017] Turning on the ridger will allow it to ridge the plot first, and then the seeder will be located on the plot beside the ridge. Since the spring is constantly compressed, the two ends of the spring push the traction rod and the screw, so that the top of the screw relies on the limit nut to rest against the top surface of the traction rod, and the bottom end presses down the seeder, so that the seeder can fully contact the ground. In this way, the seeder uses the friction between the connecting plate with ribs and the ground to achieve the seeder's own rotation while following the ridger. The crop seeds in the accommodating space can fall from the seeding hole opened on the connecting tube to the plot to complete the sowing. At the same time, when the seeder encounters a protrusion or depression on the plot, the vertical displacement compensation of the seeder relative to the traction rod can be achieved by the spring's further deformation to prevent the whole machine from bouncing.

[0018] Compared with the existing technology, the utility model has the following advantages: the utility model has a simple structure and is designed according to the layout structure of the tobacco ridge. It can cooperate with the ridge-forming mechanism to form ridges in the tobacco field while sowing crops on the soil between the ridges. It has a high degree of mechanization and is easy to promote in the future. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a structural schematic diagram of the sowing device described in a specific embodiment. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] like Figure 1 As shown, a crop sowing device for intercropping in tobacco fields includes a sowing unit consisting of two seeders 1. The seeder 1 consists of two discs 11 and a connecting tube 12 coaxially connecting the surfaces of the two discs 11. The wall of the connecting tube 12 is provided with a plurality of seeding holes 13 at equal intervals in the circumferential direction. The inner wall of the connecting tube 12 and the two discs 11 form a storage space for accommodating crop planting. The sides of the two discs 11 are further connected by a plurality of connecting plates 14 arranged at equal intervals in the circumferential direction. The connecting plates 14 and the seeding holes 13 are arranged in a staggered arrangement. The connecting plates 14 are also provided with ribs 15.

[0022] A feed hopper 17 is further provided on the surface of a disc 11 of the seeder 1 , and the feed hopper 17 is communicated with the accommodating space through a feed hole preset on the corresponding disc surface 11 .

[0023] The two seeders 1 are connected by a coaxially arranged shaft 16, and both ends of the shaft 16 are assembled with bearings preset on the corresponding frame rods 2. The end of the frame rod 2 away from the seeder 1 is hinged to a hinge seat preset on the bottom surface of the traction rod 4. The end of the traction rod 4 away from the seeder 1 is used to connect to the frame of the ridger, and the other end is provided with a through hole 41;

[0024] The screw rod 3 passing through the through hole 41 on the traction rod has its bottom end vertically connected to the pin shaft, and the pin shaft is rotatably connected to the preset hinge seat on the frame rod 2. The rod body of the screw rod 3 located above the traction rod 4 is threadedly matched with the limit nut 31. The rod body of the screw rod 3 is also provided with a limit flange 32 above the pin shaft. A spring 33 that is always in a compressed state is sleeved on the outside of the screw rod 3, and the two ends of the spring 33 respectively press against the top surface of the limit flange 32 and the bottom surface of the traction frame 4.

[0025] The two seeders 1 are located on both sides of the ridge and are connected between the corresponding traction rods 4 and the frame rods 2 through a connecting rod 5. At present, the utility model has completed prototype production and confidential implementation.

Claims

1. A crop sowing device for tobacco field intercropping mode, characterized in that: The device includes an array of seed drills rotatably connected to a frame via a rotating shaft. The seed drills are composed of two discs and a connecting cylinder coaxially connecting the disc surfaces of the two discs. The connecting cylinder has a wall provided with a plurality of seed holes circumferentially and evenly spaced therebetween. The inner wall of the connecting cylinder and the two discs form a storage space for accommodating crop planting. The sides of the two discs are further connected by a plurality of connecting plates arranged circumferentially and evenly spaced therebetween. The connecting plates and the seed holes are arranged in a staggered manner. A feed hopper is also provided on a disc surface of the seeder, and the feed hopper is communicated with the accommodating space through a feed hole preset on the corresponding disc surface.

2. The crop sowing device for tobacco field intercropping mode according to claim 1, characterized in that: The connecting plate is also provided with convex ribs.

3. The crop sowing device for tobacco field intercropping mode according to claim 1, characterized in that: The frame includes a traction rod for connecting the traction mechanism and a frame rod hinged to a preset hinge seat on the bottom surface of the traction rod, and one end of the frame rod away from the traction rod is assembled with the rotating shaft of the seeder through a preset bearing; Two adjacent seeders are located on both sides of the tobacco ridge and are connected through the same rotating shaft. The traction rods corresponding to the two seeders and the frame rods are connected through a connecting rod.

4. The crop sowing device in tobacco field intercropping mode according to claim 3, characterized in that: The top surface of the end of the frame rod away from the traction rod is also provided with a tensioning mechanism, and the tensioning mechanism includes a screw rod whose bottom end is connected to the top surface of the frame rod, and the top of the screw rod passes through a preset through hole on the traction rod and is screwed with a limit nut, and a spring is also sleeved on the screw rod between the traction rod and the frame rod.

5. The crop sowing device in tobacco field intercropping mode according to claim 4, characterized in that: The bottom end of the screw is vertically connected to the pin shaft, and the pin shaft is rotatably connected to a hinge seat preset on the frame rod.

6. The crop sowing device in tobacco field intercropping mode according to claim 5, characterized in that: The screw rod body is further provided with a limiting flange above the pin shaft, and the spring is always in a compressed state, with both ends respectively pressing against the top surface of the limiting flange and the bottom surface of the traction frame.

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