Multi-row seed sowing machine with adjustable row spacing

Abstract

A row spacing adjustable multi-row seed sowing machine comprises a front mounting rack, a rear mounting rack and a seed sowing device, the seed sowing device comprises a seed sowing box, a seed sowing wheel is rotatably mounted in the seed sowing box, a transmission shaft is inserted in the center of the seed sowing wheel, seed sowing spoons distributed in the circumferential direction are mounted on the rim of the seed sowing wheel, and a seed storage chamber is arranged in the seed sowing box. A seed storage chamber is formed in the seed metering box, the rim of the seed metering wheel penetrates through the seed storage chamber, a seed inlet communicated with the seed storage chamber is formed in the seed metering box, a seed metering opening is formed in the seed metering box, the plurality of seed metering devices are distributed between the front mounting frame and the rear mounting frame in parallel, and the seed metering devices, the front mounting frame and the rear mounting frame are respectively mounted in a left-right moving manner. And a power transmission mechanism is connected between the adjacent transmission shafts. While multi-row seeding is adopted, the seeding row spacing can be adjusted, and the multi-row seeding machine is suitable for cultivated areas with various row spacing.

Description

Technical Field

[0001] The utility model relates to a seed metering machine, in particular to a multi-row seed metering machine with adjustable row spacing. Background Art

[0002] A seeding machine is a device that arranges seeds at a certain spacing and sows them on arable land. Traditional seeding machines include a front mounting frame, a rear mounting frame, and a seeding mechanism. The seeding mechanism includes a seeding box, a rotatably mounted seeding wheel within the box, a drive shaft inserted into the center of the seeding wheel, and circumferentially distributed seeding spoons mounted on the rim of the seeding wheel. The seeding box includes a seed storage chamber, the rim of the seeding wheel passes through the seed storage chamber, and a seed inlet is provided on the seeding box, communicating with the seed storage chamber. A seeding port is also provided within the seeding box. The seeding mechanism in this type of seeding machine is fixed to the front and rear mounting frames and can only sow in a single row, resulting in low sowing efficiency.

[0003] CN207911298U discloses a double-disc high-efficiency seed meter, comprising a housing, a feed port provided on one side of the housing, a seed storage box provided at the feed port of the housing, a discharge port provided at the bottom of the housing, longitudinal grooves provided in the middle of the left and right side panels of the seed storage box, end covers provided on the left and right end faces of the housing, a seeding chamber formed between the two end covers and the corresponding side end faces of the housing, a seeding wheel provided in the seeding chamber, detachable seed spoons arranged evenly around the circumference provided on the outer edges of the left and right end faces of the seeding wheel, spoon openings of different sizes provided at the front and rear ends of the seed spoons, annular seed guide grooves arranged opposite each other provided on the end covers and the corresponding side housing end faces, the seed spoons being located in the seed guide grooves. Although this seed meter adopts double-row sowing to improve sowing efficiency, the spacing between the rows of seeds sown in the cultivated land is fixed, making it unsuitable for cultivated land areas with different row spacings. Summary of the Invention

[0004] The utility model is to solve the above technical problems and provides a multi-row seeding machine with adjustable row spacing. While adopting multi-row sowing, the sowing row spacing can be adjusted and the machine is suitable for cultivated land areas with various row spacings.

[0005] The technical solution of this utility model is:

[0006] A multi-row seeding machine with adjustable row spacing comprises a front mounting frame, a rear mounting frame and a seeding device, the seeding device comprises a seeding box, a seeding wheel is rotatably mounted in the seeding box, a transmission shaft is inserted in the center of the seeding wheel, circumferentially distributed seeding spoons are mounted on the rim of the seeding wheel, a seed storage chamber is provided in the seeding box, the rim of the seeding wheel passes through the seed storage chamber, a seed inlet communicating with the seed storage chamber is provided on the seeding box, and a seeding port is provided inside the seeding box. The special feature of the machine is that there are multiple seeding devices, and the multiple seeding devices are distributed in parallel between the front mounting frame and the rear mounting frame. The seeding device and the front mounting frame and the rear mounting frame are respectively mounted for left and right movement, and a power transmission mechanism is connected between adjacent transmission shafts.

[0007] Furthermore, adjustment holes extending in the left-right direction are respectively provided on the front mounting frame and the rear mounting frame, and bolts are passed through the adjustment holes from the outside to the inside, and the bolts are threadedly connected to the corresponding seeding boxes.

[0008] Furthermore, the power transmission mechanism includes a gear box, in which two mutually meshing spur gears are rotatably installed, and the two spur gears are inserted into corresponding transmission shafts on both sides.

[0009] Furthermore, the seeding spoon is located on one side of the rim of the seeding wheel or is separated on both sides of the rim of the seeding wheel to achieve single-row seeding or double-row seeding.

[0010] Furthermore, a knob is rotated on the seed box, a gate plate that moves up and down is provided in the seed inlet, and a gear rack transmission mechanism is installed between the knob and the gate plate to adjust the amount of seeds entering the seed storage chamber.

[0011] The beneficial effects of the utility model are:

[0012] Because multiple seeding devices are arranged in parallel between the front and rear mounting frames, and are mounted to the front and rear mounting frames for left and right movement, the system employs multi-row sowing while also allowing for adjustable row spacing, making it suitable for sowing in areas with varying row spacings. Furthermore, a power transmission mechanism is connected between adjacent drive shafts, and when the tractor's power is connected to one of the drive shafts, the power is transmitted through the power transmission mechanism to the remaining drive shafts, thereby driving all seeding devices for sowing. This system features a simple structure and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 It is a top view of the utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the seed metering device in the utility model;

[0016] Figure 4 This is a schematic diagram of the internal structure of the seed discharge port in the utility model;

[0017] Figure 5 It is a structural diagram of the power transmission mechanism in the utility model;

[0018] In the figure: 1-front mounting frame, 2-rear mounting frame, 3-seeder, 301-seeding box, 302-seeding wheel, 303-drive shaft, 304-seeding spoon, 305-seed storage chamber, 306-seed inlet, 307-knob, 308-gate, 309-gear rack transmission mechanism, 310-seed outlet, 4-adjustment hole, 5-bolt, 6-power transmission mechanism, 601-gear box, 602-spur gear. DETAILED DESCRIPTION

[0019] like Figure 1-Figure 5 As shown, a multi-row seeding machine with adjustable row spacing includes a front mounting frame 1, a rear mounting frame 2 and a seeding device 3, the seeding device 3 includes a seeding box 301, a seeding wheel 302 is rotatably installed in the seeding box 301, a transmission shaft 303 is inserted in the center of the seeding wheel 302, and a circumferentially distributed seeding spoon 304 is installed on the rim of the seeding wheel 302. The seeding spoon 304 is located on one side of the rim of the seeding wheel 302, a seed storage chamber 305 is provided in the seeding box 301, the rim of the seeding wheel 302 passes through the seed storage chamber 305, a seed inlet 306 communicating with the seed storage chamber 305 is provided on the seeding box 301, and the seeding box 301 rotates on the seeding box 301. A knob 307 is installed, a gate plate 308 that moves up and down is provided in the seed inlet 306, a gear rack transmission mechanism 309 is installed between the knob 307 and the gate plate 308, and a seeding port 310 is provided inside the seeding box 301. There are two seeding devices 3, which are distributed side by side between the front mounting frame 1 and the rear mounting frame 2. The seeding devices 3 are installed to move left and right with the front mounting frame 1 and the rear mounting frame 2 respectively. Adjustment holes 4 extending in the left and right directions are provided on the front mounting frame 1 and the rear mounting frame 2 respectively. Bolts 5 are inserted from the outside to the inside of the adjustment holes 4, and the bolts 5 are threadedly connected to the corresponding seeding box 301. A power transmission mechanism 6 is connected between adjacent transmission shafts 303. The power transmission mechanism 6 includes a gear box 601. Two mutually meshing spur gears 602 are rotatably installed in the gear box 601. The two spur gears 602 are inserted into the corresponding transmission shafts 303 on both sides.

[0020] The working principle of this utility model is:

[0021] The front mounting frame 1 and the rear mounting frame 2 are fixedly mounted on the tractor, and one of the transmission shafts 303 is connected to the power output end of the tractor. When the tractor is moving, the power of the tractor is transmitted to the other transmission shaft 303 through the transmission shaft 303 and the power transmission mechanism 6. The rotation of the two transmission shafts 303 drives the corresponding seeding wheels 302 and seeding spoons 304 to rotate. The seeding spoon 304 brings the seeds in the seed storage chamber 305 to the seeding port 310. When the seeds reach the seeding port 310, they fall into the seed pit in the cultivated land under the action of their own gravity.

[0022] In order to adapt to the row spacing of different cultivated land sowing, the two seeding devices 3 are moved left and right and the bolts 5 are tightened so that the spacing between the seeding ports 310 of the two seeding devices 3 is equal to the row spacing of the cultivated land sowing, so that the discharged seeds fall accurately into the corresponding seeding pits.

[0023] The above are only specific embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A multi-row seeding machine with adjustable row spacing, comprising a front mounting frame, a rear mounting frame and a seeding device, the seeding device comprising a seeding box, a seeding wheel rotatably mounted in the seeding box, a drive shaft inserted in the center of the seeding wheel, circumferentially distributed seeding spoons mounted on the rim of the seeding wheel, a seed storage chamber provided in the seeding box, the rim of the seeding wheel passing through the seed storage chamber, a seed inlet communicating with the seed storage chamber provided on the seeding box, and a seeding port provided inside the seeding box, characterized in that: There are multiple seeding devices, which are distributed in parallel between the front mounting frame and the rear mounting frame. The seeding devices are installed on the front mounting frame and the rear mounting frame so as to be movable left and right, and a power transmission mechanism is connected between adjacent transmission shafts.

2. The multi-row seed metering machine with adjustable row spacing according to claim 1, characterized in that: Adjustment holes extending in the left and right directions are respectively provided on the front mounting frame and the rear mounting frame. Bolts are passed through the adjustment holes from the outside to the inside, and the bolts are threadedly connected with the corresponding seeding boxes.

3. The multi-row seed metering machine with adjustable row spacing according to claim 1, characterized in that: The power transmission mechanism comprises a gear box, in which two mutually meshing spur gears are rotatably installed, and the two spur gears are inserted into corresponding transmission shafts on both sides thereof.

4. The multi-row seed metering machine with adjustable row spacing according to claim 1, characterized in that: The seeding spoon is located on one side of the rim of the seeding wheel or is separated on both sides of the rim of the seeding wheel.

5. The multi-row seed metering machine with adjustable row spacing according to claim 1, characterized in that: A knob is rotated and installed on the seeding box, a gate plate which moves up and down is arranged in the seed inlet, and a gear rack transmission mechanism is installed between the knob and the gate plate.

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