Straight barrel type small grain seeder

Abstract

The utility model discloses a straight tube type small grain seeding machine which comprises a supporting rod and supporting frames, a plurality of sets of supporting frames are installed on the side wall of the supporting rod at equal intervals, a charging basket is installed at the top end of the supporting rod, discharging chambers are installed on the side walls of the supporting frames, cross arms are installed at the top ends of the supporting frames, and the cross arms are connected with the charging basket. Left connecting rods are movably installed in the transverse arms, the surfaces of the left connecting rods are sleeved with second springs, the second springs are connected with the transverse arms, rotating arms are installed at the bottom ends of the supporting frames, rotating shafts are installed at the top ends of the rotating arms, and the rotating arms are movably connected with the supporting frames through the rotating shafts. According to the utility model, not only are convenient air-suction type seed metering and sowing of small grains and convenient abutting type soil scarification realized, soil on two sides of a sowing groove can be scarified conveniently, and soil around the sowing groove can be scraped, swept and covered in a linkage manner, but also the sowing convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grain seeders, in particular to a straight-cylinder type small-grain grain seeder. Background Art

[0002] A grain seeder is a machine that can automatically sow crops. Its function is to plant grain crops, such as wheat, corn, rice, etc. Planting crops with a grain seeder can improve work efficiency and reduce labor intensity. More importantly, it can ensure the accuracy of planting and a certain planting density, thereby increasing crop yield and quality. In order to better sow small-grain grains, a straight-cylinder small-grain grain seeder is proposed.

[0003] For example, a special seeder for small seeds disclosed in the authorization announcement number CN217546675U includes a frame and a seeding device arranged on the frame, the seeding device includes a box body and a seeding roller, the seeding roller is connected to a seeding amount adjustment mechanism, the seeding roller includes a groove wheel portion and a blocking portion, the seeding amount adjustment mechanism includes a seeding shaft and an adjusting hand wheel, the adjusting hand wheel is arranged on the frame and forms a threaded adjustable connection with the frame, the seeding shaft is rotationally connected to the adjusting hand wheel, the seeding shaft has the freedom of translation along its axial direction with the aid of the adjusting hand wheel, and the seeding roller has the freedom of insertion and withdrawal relative to the box body with the aid of the translation of the seeding shaft.

[0004] Although it realizes the threaded adjustment structure of the adjustment hand wheel and the frame, the translation distance of the seeding shaft is accurately adjusted through this structure. Compared with the adjustment method of disassembling and assembling the clip, it has a more precise adjustment effect and is particularly suitable for the sowing operation of small seeds with an external size of less than two millimeters.

[0005] However, the problem that the existing grain seeder is not conducive to convenient air suction seeding and sowing of small grains and convenient tight loosening of the soil when in use, is not conducive to loosening the soil on both sides of the sowing groove and linked scraping and covering of the soil around the seed groove, affecting the convenience of sowing. Utility Model Content

[0006] The purpose of the utility model is to provide a straight-cylinder small-grain grain seeder to solve the problem that the grain seeder proposed in the above-mentioned background technology is not convenient for convenient air suction seeding and sowing of small-grain grains and convenient tight-pressing loosening of the soil, is not conducive to loosening the soil on both sides of the sowing groove and the linked scraping and covering of the soil around the seed groove, which affects the convenience of sowing.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a straight-cylinder small-grain grain seeder, comprising a support rod and a support frame, a plurality of support frames with equal spacing are installed on the side wall of the support rod, a material barrel is installed at the top of the support rod, a discharge chamber is installed on the side wall of the support frame, a cross arm is installed at the top of the support frame, a left connecting rod is movably installed inside the cross arm, a second spring is installed on the surface of the left connecting rod, and the second spring is connected to the cross arm, a rotating arm is installed at the bottom end of the support frame, a rotating shaft is installed at the top of the rotating arm, and the rotating arm is movably connected to the support frame through the rotating shaft, a lower hinge shaft is installed at the bottom end of the left connecting rod, and the left connecting rod is movably connected to the rotating arm through the lower hinge shaft, a baffle is installed on the side wall of the rotating arm, a drive box is installed at the bottom end of the rotating arm, a double-headed motor is installed inside the drive box, two groups of driving shafts are installed at the output end of the double-headed motor, and the surface of the driving shaft is equipped with harrowing claws.

[0008] Preferably, an upper movable shaft is installed at the top end of the right connecting rod, and the right connecting rod is movably connected to the cross arm through the upper movable shaft.

[0009] Preferably, an upper movable shaft is installed at the top end of the right connecting rod, and the right connecting rod is movably connected to the cross arm through the upper movable shaft.

[0010] Preferably, the surface of the right connecting rod is fitted with a first spring, and the first spring is connected to the upper movable shaft.

[0011] Preferably, an L-shaped arm is installed on the side wall of the support frame on one side of the rotating arm, a linkage shaft is installed at one end of the L-shaped arm close to the support frame, and the L-shaped arm is movably connected to the support frame through the linkage shaft, and a leveling plate is installed at the bottom end of the L-shaped arm.

[0012] Preferably, a lower movable shaft is installed at the bottom end of the right connecting rod, and the right connecting rod is movably connected to the L-shaped arm through the lower movable shaft.

[0013] Preferably, a feed trough is installed at the top of the discharge chamber, a negative pressure bin is installed on the side wall of the discharge chamber, and the feed trough extends to the interior of the barrel.

[0014] Preferably, a discharge pipe is installed at the bottom end of the discharge chamber, and the discharge pipe is connected to the slotted claws, and a negative pressure air pump is installed on the side wall of the negative pressure bin.

[0015] Compared with the prior art, the beneficial effects of the utility model are: the grain seeder not only realizes convenient air suction seeding and sowing of small-grain grains and convenient tight-pressing loosening of the soil, but also facilitates the loosening of the soil on both sides of the sowing groove and the linked scraping and covering of the soil around the seed groove, and improves the convenience of sowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the drive box of the utility model;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the rotating arm of the utility model;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the discharge chamber of the utility model;

[0020] Figure 5 It is a schematic diagram of the side cross-sectional structure of the drive box of the utility model.

[0021] In the figure: 1. material barrel; 2. baffle frame; 3. soil leveling plate; 4. support rod; 5. rotating arm; 6. driving shaft; 7. driving box; 8. harrowing claw; 9. L-shaped arm; 10. lower movable shaft; 11. right connecting rod; 12. first spring; 13. upper movable shaft; 14. horizontal arm; 15. supporting frame; 16. second spring; 17. left connecting rod; 18. lower articulated shaft; 19. negative pressure air pump; 20. rotating shaft; 21. feeding pipe; 22. slotting claw; 23. discharge chamber; 24. negative pressure bin; 25. double-headed motor; 26. feeding trough; 27. linkage shaft. DETAILED DESCRIPTION

[0022] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0023] See also Figure 1-5The utility model provides an embodiment: a straight-cylinder small-grain grain seeder, comprising a support rod 4 and a support frame 15, a plurality of support frames 15 are installed on the side wall of the support rod 4 with equal spacing, a material barrel 1 is installed on the top of the support rod 4, a discharge chamber 23 is installed on the side wall of the support frame 15, a cross arm 14 is installed on the top of the support frame 15, a left connecting rod 17 is movably installed inside the cross arm 14, a second spring 16 is mounted on the surface of the left connecting rod 17, and the second spring 16 is connected to the cross arm 14, and a rotating arm 5 is installed on the bottom end of the support frame 15, A rotating shaft 20 is installed at the top of the rotating arm 5, and the rotating arm 5 is movably connected to the support frame 15 through the rotating shaft 20. A lower hinge shaft 18 is installed at the bottom end of the left connecting rod 17, and the left connecting rod 17 is movably connected to the rotating arm 5 through the lower hinge shaft 18. A baffle frame 2 is installed on the side wall of the rotating arm 5, and a drive box 7 is installed at the bottom end of the rotating arm 5. A double-headed motor 25 is installed inside the drive box 7, and the double-headed motor 25 plays a role of power drive. Two sets of drive shafts 6 are installed at the output end of the double-headed motor 25, and the surface of the drive shaft 6 is covered with a harrowing claw 8.

[0024] First, the device is installed on the tractor, and the tractor drives the device to move. The device is connected to the controller and circuit of the tractor, and small grains are poured into the inside of the barrel 1. The small grains enter the inside of the discharge chamber 23 through the feed trough 26, and the negative pressure air pump 19 is turned on. The negative pressure air pump 19 is used to evacuate air to form a negative pressure environment inside the negative pressure bin 24. The discharge chamber 23 has an air suction cup inside. Due to the negative pressure formed in the negative pressure bin 24, the small grains can be adsorbed in the air suction holes on the air suction cup, and the small grains are discharged by the air suction cup. After that, the small grains pass through The feed pipe 21 is discharged, and under the action of the tractor, the slotting claw 22 is driven to move, and a seed groove is opened on the cultivated land by the slotting claw 22, and the small grains fall into the seed groove through the feed pipe 21, and then the double-headed motor 25 is turned on, and the double-headed motor 25 drives the drive shaft 6 to rotate, and the drive shaft 6 drives the harrowing claw 8 to rotate, and the harrowing claw 8 is used to loosen the soil on both sides of the seed groove to facilitate covering the small grains, thereby completing the sowing operation of the small grains, realizing convenient air suction seeding and sowing of small grains, and facilitating the loosening of the soil on both sides of the sowing groove.

[0025] An upper movable shaft 13 is installed at the top end of the right connecting rod 11 , and the right connecting rod 11 is movably connected to the cross arm 14 via the upper movable shaft 13 .

[0026] An upper movable shaft 13 is installed at the top end of the right connecting rod 11 , and the right connecting rod 11 is movably connected to the cross arm 14 via the upper movable shaft 13 .

[0027] The surface of the right connecting rod 11 is provided with a first spring 12, and the first spring 12 is connected to the upper movable shaft 13. An L-shaped arm 9 is installed on the side wall of the support frame 15 on one side of the rotating arm 5. A linkage shaft 27 is installed at one end of the L-shaped arm 9 close to the support frame 15, and the L-shaped arm 9 is movably connected to the support frame 15 through the linkage shaft 27. A leveling plate 3 is installed at the bottom end of the L-shaped arm 9.

[0028] The bottom end of the right connecting rod 11 is installed with a lower movable shaft 10, and the right connecting rod 11 is movably connected to the L-shaped arm 9 through the lower movable shaft 10, the top of the discharge chamber 23 is installed with a feed trough 26, the side wall of the discharge chamber 23 is installed with a negative pressure bin 24, and the feed trough 26 extends to the interior of the barrel 1.

[0029] A discharge pipe 21 is installed at the bottom of the discharge chamber 23, and the discharge pipe 21 is connected to the slotted claw 22. A negative pressure air pump 19 is installed on the side wall of the negative pressure bin 24, and the negative pressure air pump 19 plays a role in sucking negative pressure.

[0030] At the same time, under the elastic support of the second spring 16 and the first spring 12, the left connecting rod 17 is driven by the second spring 16 to rotate, and the left connecting rod 17 drives the rotating arm 5 to rotate with the rotating shaft 20 as the axis through the lower hinge shaft 18, and the rotating arm 5 drives the driving box 7 and the harrowing claw 8 to rotate, so that the harrowing claw 8 is always in contact with the ground, so as to more conveniently loosen the soil on both sides of the groove, and the right connecting rod 11 is driven by the first spring 12 to rotate with the upper movable shaft 13 as the axis, and the right connecting rod 11 drives the L-shaped arm 9 to rotate with the linkage shaft 27 as the axis through the lower movable shaft 10, and the L-shaped arm 9 drives the flattening plate 3 to rotate and make the flattening plate 3 always in contact with the ground, and under the continuous action of the tractor, the flattening plate 3 is driven to move continuously, and the loosened soil is scraped and swept into the inside of the groove by the flattening plate 3 to cover the small grains, so as to complete the covering operation of the small grains, realize the convenient tight loosening of the soil, facilitate the linkage scraping and covering of the soil around the seed groove, and improve the convenience of sowing.

[0031] Working principle: First, small grains enter the discharge chamber 23 through the feed trough 26, and the negative pressure air pump 19 is used to evacuate air to form a negative pressure environment inside the negative pressure bin 24. The discharge chamber 23 is equipped with an air suction cup. Because the negative pressure bin 24 forms a negative pressure, the small grains can be adsorbed in the air suction holes on the air suction cup, and the air suction cup is used to discharge the small grains. After that, the small grains are discharged through the discharge pipe 21. Under the action of the tractor, the slotting claws 22 are driven to move, and the slotting claws 22 open a seed groove on the cultivated land. The small grains fall into the seed groove through the discharge pipe 21, and the double-headed motor 25 drives the drive shaft 6 to rotate, and the drive shaft 6 drives the harrowing claws 8 to rotate, and the harrowing claws 8 are used to loosen the soil on both sides of the seed groove to facilitate covering the small grains, thereby completing the sowing operation of the small grains. At the same time, the second spring 16 and the first spring 12 Under the elastic support, the left connecting rod 17 is driven by the second spring 16 to rotate, and the left connecting rod 17 drives the rotating arm 5 to rotate with the rotating shaft 20 as the axis through the lower hinge shaft 18, and the rotating arm 5 drives the driving box 7 and the harrowing claw 8 to rotate, so that the harrowing claw 8 is always in contact with the ground, so as to more conveniently loosen the soil on both sides of the groove, and the right connecting rod 11 is driven by the first spring 12 to rotate with the upper movable shaft 13 as the axis, and the right connecting rod 11 drives the L-shaped arm 9 to rotate with the linkage shaft 27 as the axis through the lower movable shaft 10, and the L-shaped arm 9 drives the flattening plate 3 to rotate and make the flattening plate 3 always in contact with the ground, and under the continuous action of the tractor, the flattening plate 3 is driven to move continuously, and the loosened soil is scraped into the inside of the groove by the flattening plate 3 to cover the small grains, so as to complete the covering operation of the small grains, and complete the use of the straight-cylinder small grain seeder.

[0032] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A straight-cylinder small-grain grain seeder, comprising a support rod (4) and a support frame (15), characterized in that: A plurality of support frames (15) are installed at equal intervals on the side wall of the support rod (4), a material barrel (1) is installed on the top of the support rod (4), a discharge chamber (23) is installed on the side wall of each support frame (15), a cross arm (14) is installed on the top of each support frame (15), a left connecting rod (17) is movably installed inside each cross arm (14), a second spring (16) is mounted on the surface of each left connecting rod (17), and the second spring (16) is connected to the cross arm (14), a rotating arm (5) is installed on the bottom end of each support frame (15), and a rotating arm (5) is installed on the top end of each rotating arm (5). A shaft (20) is provided, and the rotating arm (5) is movably connected to the support frame (15) via the rotating shaft (20); a lower hinge shaft (18) is installed at the bottom end of the left connecting rod (17), and the left connecting rod (17) is movably connected to the rotating arm (5) via the lower hinge shaft (18); a baffle frame (2) is installed on the side wall of the rotating arm (5); a driving box (7) is installed at the bottom end of the rotating arm (5); a double-headed motor (25) is installed inside the driving box (7); two sets of driving shafts (6) are installed at the output end of the double-headed motor (25); and a raking claw (8) is mounted on the surface of the driving shaft (6).

2. A straight-cylinder small-grain grain seeder according to claim 1, characterized in that: A slotted claw (22) is installed on the side wall of the support frame (15) below the support rod (4), and a right connecting rod (11) is installed inside the cross arm (14) on one side of the left connecting rod (17).

3. A straight-cylinder small-grain grain seeder according to claim 2, characterized in that: An upper movable shaft (13) is installed at the top end of the right connecting rod (11), and the right connecting rod (11) is movably connected to the cross arm (14) via the upper movable shaft (13).

4. A straight-cylinder small-grain grain seeder according to claim 2, characterized in that: The surface of the right connecting rod (11) is sleeved with a first spring (12), and the first spring (12) is connected to the upper movable shaft (13).

5. A straight-cylinder small-grain grain seeder according to claim 1, characterized in that: An L-shaped arm (9) is installed on the side wall of the support frame (15) on one side of the rotating arm (5), and a linkage shaft (27) is installed on one end of the L-shaped arm (9) close to the support frame (15). The L-shaped arm (9) is movably connected to the support frame (15) via the linkage shaft (27), and a leveling plate (3) is installed at the bottom end of the L-shaped arm (9).

6. A straight-cylinder small-grain grain seeder according to claim 2, characterized in that: A lower movable shaft (10) is installed at the bottom end of the right connecting rod (11), and the right connecting rod (11) is movably connected to the L-shaped arm (9) via the lower movable shaft (10).

7. A straight-cylinder small-grain grain seeder according to claim 1, characterized in that: A feed trough (26) is installed at the top of each discharge chamber (23), a negative pressure bin (24) is installed on the side wall of each discharge chamber (23), and the feed trough (26) extends to the interior of the barrel (1).

8. A straight-cylinder small-grain grain seeder according to claim 7, characterized in that: A discharge pipe (21) is installed at the bottom end of the discharge chamber (23), and the discharge pipe (21) is connected to the slotting claw (22). A negative pressure air pump (19) is installed on the side wall of the negative pressure bin (24).

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