Air suction type no-tillage precision seeder

Abstract

The utility model relates to the technical field of air suction type no-tillage seeding machines, in particular to an air suction type no-tillage precision seeding machine. According to the technical scheme, the device comprises a rack and a rotary drum, the two sides of the rotary drum are connected with the two sides of the inner wall of the rack through a connecting shaft and a hollow shaft correspondingly, a plurality of through holes are formed in the outer surface of the rotary drum in an annular array at equal intervals, and adsorption holes are formed in the positions, located on the two sides of each through hole, of the outer surface of the rotary drum; a sliding rod is inserted into each through hole, a movable plate is connected to the end, located in the rotary drum, of each sliding rod, stepped shaft rods are connected to the two sides of each movable plate and penetrate through the adsorption holes, and a rolling wheel is installed at the end, located outside the rotary drum, of each sliding rod; and a hopper is mounted on the upper surface of the rack. According to the utility model, seeds can be prevented from being clamped in the adsorption holes and cannot fall off for seeding, miss-seeding of the seeds is avoided, and damage to the seeds is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to air-suction type no-tillage seeding machine technical field, concretely is a kind of air-suction type no-tillage precision seeding machine. BACKGROUND

[0002] Air-suction type no-tillage seeding machine is a kind of agricultural machinery using negative pressure principle precision seeding, it can improve seeding efficiency and quality, reduce soil damage, protect soil structure, improve crop yield, suitable for the seeding work of various farmland, especially in modern large-scale agriculture.

[0003] The current air-suction type no-tillage seeding machine, when seeding, seed needs to rely on its own gravity to drop after losing adsorption force to complete seeding, but seed often cannot rely on its own gravity to drop due to being stuck in adsorption hole in the process of adsorption, causing seed missing, and easily causing seed damage, for this purpose, we propose a kind of air-suction type no-tillage precision seeding machine. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of air-suction type no-tillage precision seeding machine, with the advantages of avoiding seed stuck in adsorption hole and unable to drop seeding, avoiding leading to seed missing, and avoiding seed damage, solve the current air-suction type no-tillage seeding machine, when seeding, seed needs to rely on its own gravity to drop after losing adsorption force to complete seeding, but seed often cannot rely on its own gravity to drop due to being stuck in adsorption hole in the process of adsorption, causing seed missing, and easily causing seed damage Problem.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of air-suction type no-tillage precision seeding machine, including frame and rotating drum, the rotating drum two sides are connected respectively by connecting shaft and hollow shaft and frame inner wall two sides connection, the rotating drum outer surface is equidistantly provided with a plurality of through holes in annular array, the rotating drum outer surface is located at each through hole both sides position place is provided with adsorption hole, each the through hole inside is inserted with slide rod, each the slide rod is located at the one end in rotating drum interior and is connected with movable plate, each the movable plate both sides position place is connected with ladder shaft, and ladder shaft passes through adsorption hole, each the slide rod is located at the one end outside rotating drum and is installed with gyro wheel, the frame upper surface is installed with hopper, the hopper lower surface is installed with discharge pipe, and discharge pipe lower surface is connected with arc plate, each the slide rod outer surface is spirally wound with spring.

[0006] Preferably, the frame outer surface is installed with suction pump near one side of hollow shaft, and the suction end of suction pump and the end of hollow shaft are connected by rotary joint, the air in rotating drum is sucked away by suction pump, so that seed can be adsorbed on adsorption hole.

[0007] Preferably, the outer surface of the frame is provided with a transmission box near one side of the connecting shaft, the transmission box is externally provided with a rotating motor, the output shaft of the rotating motor is connected with a motor gear, the connecting shaft is connected with a transmission gear, the transmission gear and the motor gear are located in the transmission box, the motor gear and the transmission gear are engaged, and the rotating motor drives the connecting shaft and the rotating drum to rotate through the motor gear and the transmission gear.

[0008] Preferably, the frame is provided with moving wheels near the front surface and the rear surface on both sides, and the frame moves through the four moving wheels.

[0009] Preferably, the end of each stepped shaft rod is provided with a rubber block, so that the hard contact between the seeds and the stepped shaft rod is avoided, and the seed damage is further avoided.

[0010] Preferably, the frame is internally provided with a horizontal plate located below the rotating drum, the horizontal plate is externally provided with seeding pipes located at both sides of the upper surface, the seeding pipes penetrate the horizontal plate, and when the roller and the inner wall of the arc-shaped plate are separated, the seeds falling from the adsorption holes fall into the seeding pipes and then fall into the seeding soil.

[0011] Compared with the prior art, the utility model has the beneficial effects as follows:

[0012] 1. The utility model discloses a frame, a rotating drum, a through hole, a spring, a sliding rod, a roller, a hollow shaft, a stepped shaft rod, an adsorption hole, an arc-shaped plate, a hopper and a discharging pipe are arranged, which can avoid the seeds from being stuck in the adsorption hole and falling for seeding, avoid the seeds from being missed for seeding, and avoid the seeds from being damaged, the rotating drum rotates, when the roller and the inner wall of the arc-shaped plate are in contact, the arc-shaped plate forces the roller to move towards the inside of the rotating drum, the sliding rod moves towards the inside of the rotating drum, the spring is stretched, the stepped shaft rod also moves towards the inside of the rotating drum along the adsorption hole, one end of the stepped shaft rod with a smaller diameter enters the inside of the adsorption hole, and the other end of the stepped shaft rod with a larger diameter completely enters the inside of the rotating drum, at this time, there is an adsorption gap between the outer surface of the stepped shaft rod and the inner wall of the adsorption hole, when the adsorption hole moves below the discharging pipe, the seeds are adsorbed on the adsorption hole, when the roller and the inner wall of the arc-shaped plate are separated, the stretched spring restores, the stepped shaft rod moves along the adsorption hole towards the outside of the rotating drum, and the seeds on the adsorption hole are pushed out, so that the seeds are prevented from being stuck on the adsorption hole.

[0013] 2. The utility model discloses a rubber block, which can avoid the hard contact between the seeds and the stepped shaft rod, and further avoid the seed damage. DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0015] Figure 2 It is a partial three-dimensional structure schematic view of the rotating drum of the utility model;

[0016] Figure 3 This is a schematic diagram of the main sectional structure of this utility model;

[0017] Figure 4 This is a partial three-dimensional structural diagram of the movable plate of this utility model;

[0018] Figure 5 This is a side sectional view of the present invention.

[0019] Reference numerals: 1. Moving wheel; 2. Rotating motor; 3. Transmission box; 4. Frame; 5. Hopper; 6. Rotary drum; 7. Connecting shaft; 8. Adsorption hole; 9. Through hole; 10. Transmission gear; 11. Motor gear; 12. Movable plate; 13. Air pump; 14. Rotary joint; 15. Hollow shaft; 16. Horizontal plate; 17. Seeding tube; 18. Slide rod; 19. Spring; 20. Stepped shaft; 21. Rubber block; 22. Roller; 23. Arc plate; 24. Feeding pipe. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] like Figures 1-5 As shown, the present invention proposes an air-suction no-till precision seeder, comprising a frame 4 and a rotating drum 6. The frame 4 is shaped like an "n" in front view. Moving wheels 1 are installed on both sides of the frame 4 near the front and rear surfaces, allowing the frame 4 to move via the four moving wheels 1. The rotating drum 6 is connected to the inner walls of the frame 4 via connecting shafts 7 and hollow shafts 15 on both sides, respectively. A plurality of through holes 9 are evenly spaced in a circular array on the outer surface of the rotating drum 6. Adsorption holes 8 are provided on both sides of each through hole 9 on the outer surface of the rotating drum 6. An air pump 13 is installed on the outer surface of the frame 4 near the hollow shaft 15, and the air pump 13 and the end of the hollow shaft 15 are connected via a rotary joint 14. The air pump 13 extracts air from inside the rotating drum 6 through the rotary joint 14 and the hollow shaft 15, allowing the seeds to be adsorbed onto the adsorption holes 8.

[0022] A transmission box 3 is installed on the outer surface of the frame 4 near the connecting shaft 7. A rotary motor 2 is installed on the outside of the transmission box 3. A motor gear 11 is connected to the end of the output shaft of the rotary motor 2. A transmission gear 10 is connected to the end of the connecting shaft 7. Both the transmission gear 10 and the motor gear 11 are located inside the transmission box 3 and mesh with each other. The rotary motor 2 drives the connecting shaft 7 and the rotating drum 6 to rotate through the motor gear 11 and the transmission gear 10. A slide rod 18 is inserted into each through hole 9. A movable plate 12 is connected to one end of each slide rod 18 inside the rotating drum 6. Stepped shafts 20 are connected to both sides of each movable plate 12. The stepped shafts 20 pass through the adsorption holes 8. The outer diameters of the two ends of the stepped shafts 20 are different, and the outer diameter of the smaller end is smaller than the diameter of the adsorption hole 8. A rubber block 21 is installed at the end of each stepped shaft 20. The rubber block 21 prevents the seeds from making hard contact with the stepped shafts 20, so as to further prevent seed damage.

[0023] Each slide bar 18 has a roller 22 installed at one end outside the rotating drum 6. A hopper 5 is installed on the upper surface of the frame 4, and the seeds are stored inside the hopper 5. A feeding pipe 24 is installed on the lower surface of the hopper 5, and an arc plate 23 is connected to the lower surface of the feeding pipe 24. The arc plate 23 and the rotating drum 6 are coaxial. A horizontal plate 16 is installed inside the frame 4 below the rotating drum 6. Seeding pipes 17 are installed on both sides of the upper surface of the horizontal plate 16. One end of the arc plate 23 extends to a position close to the upper part of the seeding pipe 17. The seeding pipe 17 passes through the horizontal plate 16. Seeds falling from the adsorption hole 8 fall into the seeding pipe 17 and then fall into the sowing soil. A spring 19 is spirally wound on the outer surface of each slide bar 18. The two ends of the spiral spring 19 are respectively connected to the slide bar 18 and the outer surface of the movable plate 12.

[0024] In use, the seeds are stored inside the hopper 5. The rotating motor 2 drives the rotating drum 6 to rotate. When the roller 22 contacts the inner wall of the arc plate 23, the arc plate 23 forces the roller 22 to move towards the inside of the rotating drum 6. At the same time, the slide rod 18 moves towards the inside of the rotating drum 6, the spring 19 is stretched, and the stepped shaft 20 also moves towards the inside of the rotating drum 6 along the adsorption hole 8. The smaller diameter end of the stepped shaft 20 enters the inside of the adsorption hole 8, while the larger diameter end of the stepped shaft 20 completely enters the inside of the rotating drum 6. At this time, there is an adsorption gap between the outer surface of the stepped shaft 20 and the inner wall of the adsorption hole 8. When the adsorption hole 8 moves below the feed pipe 24, the seeds are adsorbed on the adsorption hole 8. When the roller 22 separates from the inner wall of the arc plate 23, the stretched spring 19 returns to its original position, and the stepped shaft 20 moves towards the outside of the rotating drum 6 along the adsorption hole 8, pushing the seeds on the adsorption hole 8 out to prevent the seeds from getting stuck on the adsorption hole 8.

[0025] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A pneumatic no-till precision seeder comprising a frame (4) and a drum (6), characterized in that: The rotary drum (6) is connected with the inner wall of the frame (4) on both sides through the connecting shaft (7) and the hollow shaft (15) respectively, a plurality of through holes (9) are arranged on the outer surface of the rotary drum (6) in a ring array and equidistantly, an adsorption hole (8) is arranged on the outer surface of the rotary drum (6) at the position on both sides of each through hole (9), a sliding rod (18) is inserted into each through hole (9), one end of each sliding rod (18) inside the rotary drum (6) is connected with a movable plate (12), a stepped shaft rod (20) is connected on both sides of each movable plate (12), the stepped shaft rod (20) passes through the adsorption hole (8), a roller (22) is installed at one end of each sliding rod (18) outside the rotary drum (6), a hopper (5) is installed on the upper surface of the frame (4), a discharge pipe (24) is installed on the lower surface of the hopper (5), an arc plate (23) is connected to the lower surface of the discharge pipe (24), and a spring (19) is spirally wound on the outer surface of each sliding rod (18).

2. The air-assisted no-till precision seeding machine of claim 1, wherein: The outer surface of the frame (4) is provided with an air suction pump (13) near the hollow shaft (15), and the air suction end of the air suction pump (13) is connected with the end of the hollow shaft (15) through a rotary joint (14).

3. The air-assisted no-till precision seeding machine of claim 1, wherein: The outer surface of the frame (4) is provided with a transmission box (3) near the connecting shaft (7), the transmission box (3) is provided with a rotating motor (2) outside, the output shaft of the rotating motor (2) is connected with a motor gear (11), the end of the connecting shaft (7) is connected with a transmission gear (10), and the transmission gear (10) and the motor gear (11) are located in the transmission box (3), and the motor gear (11) and the transmission gear (10) are engaged.

4. The air-suction no-tillage precision seeder according to claim 1, characterized in that: The frame (4) is provided with a moving wheel (1) near the front surface and the rear surface on both sides.

5. The air-assisted no-till precision seeding machine of claim 1, wherein: The end of each stepped shaft rod (20) is provided with a rubber block (21).

6. The air-assisted no-till precision seeding machine of claim 1, wherein: The frame (4) is provided with a horizontal plate (16) below the rotary drum (6), and a seeding pipe (17) is installed on the upper surface of the horizontal plate (16) on both sides.

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