Air suction type high-speed precise seed sowing device

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to an air-aspiration type high-speed precise seed-metering device, which is provided with an air blast mechanism and a baffle plate to clean a vent hole, so that seeds or impurities are prevented from being clamped in the vent hole to influence seed metering, and the stability of the device is improved; comprising a storage mechanism; the device further comprises an impurity discharging mechanism, an air exhaust mechanism, a stirring mechanism and an air flushing mechanism, the impurity discharging mechanism is installed on the storage mechanism and discharges impurities clamped in holes, the air exhaust mechanism is installed on the storage mechanism and pumps air in the device, and the stirring mechanism is installed on the storage mechanism and pokes seeds. And the air blast mechanism is mounted on the storage mechanism and blows stuck impurities into the impurity discharging mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to an air-suction high-speed precision seed metering device. Background Art

[0002] The seed meter is the main component of the seeder. The air-suction seed meter uses the negative pressure generated by the fan to adsorb the seeds on the seed disc. The seeds rotate with the seed disc. When the seeds reach the end of the air suction channel, the negative pressure ends and the seeds fall into the seed bed opened by the furrow opener by their own weight.

[0003] The existing seeding device, such as the air-suction seeding device seeding structure disclosed in the utility model patent application number 202320844483.8, has a main structure including an air-suction seeding device shell cover, a seeding hole that is interconnected with the seed chamber of the air-suction seeding device is opened on the lower side of the vertical wall plate of the air-suction seeding device shell cover, and an elastic sheet is hingedly installed on the vertical wall plate of the air-suction seeding device shell cover at a position above the seeding hole through an upper pin shaft so as to swing back and forth. The plugging cover is hingedly installed on the lower side of the elastic sheet through the lower pin shaft, and the plugging cover and the seeding through hole opened on the vertical wall plate of the air-suction seed metering device shell cover are snap-fitted or disengaged from the snap-fit; when in use, the elastic bending deformation of the elastic sheet is used to pull the plugging cover out of the seeding through hole on the air-suction seed metering device shell cover, and the plugging cover is rotated to the outer side of the seeding through hole by the elastic sheet around the upper pin shaft, so that the seeds remaining in the seed chamber of the air-suction seed metering device are discharged from the seeding through hole by gravity.

[0004] However, most existing seeding devices rely on the gravity of seeds to fall naturally after losing suction, which may cause seeds to get stuck in the holes, resulting in not only missed sowing and missing seeds, but also blocking the holes and affecting the subsequent adsorption of seeds. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an air suction high-speed precision seed metering device which cleans the air holes by setting an air impact mechanism and a baffle, thereby preventing seeds or impurities from getting stuck in the air holes and affecting the seed metering, thereby improving the stability of the device.

[0006] The utility model discloses an air-suction high-speed precision seed metering device, comprising a storage mechanism; further comprising a debris removal mechanism, an air suction mechanism, a toggle mechanism and an air flushing mechanism, wherein the debris removal mechanism is mounted on the storage mechanism and discharges impurities stuck in the holes, the air suction mechanism is mounted on the storage mechanism and extracts air in the device, the toggle mechanism is mounted on the storage mechanism and toggles the direction of the seeds, and the air flushing mechanism is mounted on the storage mechanism and blows the stuck impurities into the debris removal mechanism; seeds are poured into the storage mechanism, the storage mechanism drives the air suction mechanism to rotate, the air suction mechanism extracts air in the device, so that the negative pressure in the cavity adsorbs the seeds, the storage mechanism drives the seeds to rotate, the toggle mechanism to toggle the direction of the seeds, the seeds are discharged after leaving the negative pressure cavity, the air flushing mechanism peels off and air flushes the seeds and impurities stuck in the ventilation holes, and the impurities are discharged through the debris removal mechanism.

[0007] Preferably, the storage mechanism includes a protective box, a main shaft, a suction cup, a feed hopper, a first baffle and a discharge pipe. The protective box is installed on the working surface, the main shaft is rotatably installed in the protective box, the suction cup is rotatably installed in the protective box and forms a storage cavity with the protective box, multiple sets of air holes are opened on the suction cup, the feed hopper is installed on the protective box and communicates with the interior of the storage cavity, the first baffle is installed in the storage cavity of the protective box, and the discharge pipe is installed on the protective box and communicates with the interior of the storage cavity; the staff pours the seeds into the storage cavity of the protective box through the feed hopper, and the first baffle is set to prevent the seeds from directly entering the discharge pipe and being discharged. The vacuum mechanism is used to pump air to form a negative pressure, so that the seeds are adsorbed in the air holes of the suction cup, and the main shaft drives the suction cup to rotate. When the seeds move to normal pressure, they fall from the air holes and are discharged through the discharge pipe.

[0008] Preferably, the impurity discharge mechanism includes an exhaust plate, a partition, a drain pipe and a drain valve, the exhaust plate is installed in the protective box, a negative pressure chamber is provided between the exhaust plate and the suction cup, an equipment chamber is provided between the exhaust plate and the protective box, the partition is installed on the exhaust plate and is located in the negative pressure chamber, a normal pressure chamber is provided between the partition and the suction cup, the top of the drain pipe is connected to the bottom end of the protective box, the drain pipe is connected to the inside of the normal pressure chamber, and the drain valve is installed on the drain pipe; the exhaust mechanism draws out the air in the negative pressure chamber through the exhaust plate, so that the seeds are adsorbed in the vents of the suction cup, the seeds rotate with the suction cup, and fall when the seeds move to the corresponding position of the normal pressure chamber, and the air flushing mechanism flushes impurities into the normal pressure chamber, and the staff regularly opens the drain valve to discharge the impurities through the drain pipe.

[0009] Preferably, the exhaust mechanism includes a first pulley, a rotating shaft, a second pulley, a belt, an exhaust fan and an exhaust pipe. The first pulley is installed on the main shaft, the rotating shaft is rotatably installed on the protective box and is located in the equipment cavity, the second pulley is installed on the rotating shaft, the belt tensioning is installed between the first pulley and the second pulley, the exhaust fan is installed on the rotating shaft, and the exhaust pipe is installed on the protective box and connected to the inside of the equipment cavity; the main shaft drives the first pulley to rotate, the first pulley drives the second pulley and the rotating shaft to rotate through the belt, the rotating shaft drives the exhaust fan to rotate, the exhaust fan extracts the air in the negative pressure cavity through the exhaust plate, and discharges the air through the exhaust pipe.

[0010] Preferably, the toggle mechanism includes a fixed column, a spring plate, a nut and a bolt. The fixed column is installed on the protective box and is located in the storage cavity. The spring plate is installed on the fixed column. The bottom end of the nut is connected to the top end of the protective box. The bolt and the nut are connected by a thread. According to the type of seed, the staff rotates the bolt, and the bolt presses the spring plate downward to adjust the distance between the spring plate and the seed, so that the spring plate to toggle the seed and adjust the direction of the seed.

[0011] Preferably, the air flushing mechanism includes a second baffle, an air hose, a connecting pipe, a boosting valve and a nozzle. The second baffle is installed on the protective box and is located in the storage chamber. The air hose is connected to the interior of the exhaust pipe. The connecting pipe is installed in the storage chamber of the protective box and connected to the interior of the air hose. The boosting valve is installed on the connecting pipe, and the nozzle is installed on the connecting pipe. The second baffle peels off the seeds stuck on the suction cup vent, and the air in the exhaust pipe is transported to the connecting pipe through the air hose. The pressure of the airflow in the connecting pipe is increased by setting the boosting valve, and the air is flushed out through the nozzle to perform air flushing on the impurities stuck at the vent, and the impurities are flushed into the normal pressure chamber.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the seeds are poured into the storage mechanism, the storage mechanism drives the vacuum mechanism to rotate, the vacuum mechanism extracts the air in the device, so that the negative pressure in the cavity adsorbs the seeds, the storage mechanism drives the seeds to rotate, the toggle mechanism to toggle the direction of the seeds, the seeds are discharged after leaving the negative pressure cavity, the air flushing mechanism peels off and flushes the seeds and impurities stuck in the ventilation holes, and the impurities are discharged through the impurity removal mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the cross-sectional axonometric structure of the present utility model;

[0014] Figure 2 This is an axonometric structural diagram of the storage mechanism of the utility model;

[0015] Figure 3 This is a schematic diagram of the cross-sectional axonometric structure of the storage mechanism of the utility model;

[0016] Figure 4This is a schematic diagram of the cross-section axonometric structure of the impurity removal mechanism and the air extraction mechanism of the utility model;

[0017] Figure 5 This is a partially enlarged sectional axonometric structural diagram of the air extraction mechanism of the utility model;

[0018] Figure 6 This is a partially enlarged axonometric structural diagram of the toggle mechanism of the utility model;

[0019] Figure 7 It is a partially enlarged sectional axonometric structural diagram of the air impact mechanism of the utility model.

[0020] Markings in the accompanying drawings: 01, storage mechanism; 11, protective box; 12, main shaft; 13, suction cup; 14, feed hopper; 15, first baffle; 16, discharge pipe; 02, debris discharge mechanism; 21, exhaust plate; 22, partition; 23, sewage pipe; 24, sewage valve; 03, exhaust mechanism; 31, first pulley; 32, rotating shaft; 33, second pulley; 34, belt; 35, exhaust fan; 36, exhaust pipe; 04, toggle mechanism; 41, fixing column; 42, spring plate; 43, nut; 44, bolt; 05, air impact mechanism; 51, second baffle; 52, gas hose; 53, connecting pipe; 54, boost valve; 55, nozzle. DETAILED DESCRIPTION

[0021] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0022] Example 1

[0023] The utility model is an air-suction high-speed precision seed metering device, comprising a storage mechanism 01; further comprising a debris removal mechanism 02, an air suction mechanism 03, a toggle mechanism 04 and an air impact mechanism 05, wherein the debris removal mechanism 02 is mounted on the storage mechanism 01 and discharges impurities stuck in the hole, the air suction mechanism 03 is mounted on the storage mechanism 01 and extracts air from the device, the toggle mechanism 04 is mounted on the storage mechanism 01 and toggle the seeds in the right direction, and the air impact mechanism 05 is mounted on the storage mechanism 01 and blows the impurities stuck in the main body into the debris removal mechanism 02; the storage mechanism 01 comprises a protective box 11, a main shaft 12, a suction cup 13, a feed hopper 1 4. The first baffle 15 and the discharge pipe 16, the protective box 11 is installed on the working surface, the main shaft 12 is rotatably installed in the protective box 11, the suction cup 13 is rotatably installed in the protective box 11 and forms a storage cavity between the protective box 11, the suction cup 13 has multiple sets of vents, the feed hopper 14 is installed on the protective box 11 and communicates with the inside of the storage cavity, the first baffle 15 is installed in the storage cavity of the protective box 11, the discharge pipe 16 is installed on the protective box 11 and communicates with the inside of the storage cavity; the impurity discharge mechanism 02 includes an exhaust plate 21, a partition 22, a drain pipe 23 and a drain valve 24, the exhaust plate 21 is installed in the protective box 1 1, a negative pressure chamber is provided between the exhaust plate 21 and the suction cup 13, an equipment chamber is provided between the exhaust plate 21 and the protective box 11, a partition 22 is installed on the exhaust plate 21 and is located in the negative pressure chamber, a normal pressure chamber is provided between the partition 22 and the suction cup 13, the top of the drain pipe 23 is connected to the bottom end of the protective box 11, the drain pipe 23 is connected to the inside of the normal pressure chamber, and the drain valve 24 is installed on the drain pipe 23; the exhaust mechanism 03 includes a first pulley 31, a rotating shaft 32, a second pulley 33, a belt 34, an exhaust fan 35 and an exhaust pipe 36, the first pulley 31 is installed on the main shaft 12, and the rotating shaft 32 rotates It is installed on the protective box 11 and is located in the equipment cavity. The second pulley 33 is installed on the rotating shaft 32. The belt 34 is tensioned and installed between the first pulley 31 and the second pulley 33. The exhaust fan 35 is installed on the rotating shaft 32. The exhaust pipe 36 is installed on the protective box 11 and communicates with the interior of the equipment cavity. The toggle mechanism 04 includes a fixed column 41, a spring plate 42, a nut 43 and a bolt 44. The fixed column 41 is installed on the protective box 11 and is located in the storage cavity. The spring plate 42 is installed on the fixed column 41. The bottom end of the nut 43 is connected to the top end of the protective box 11. The bolt 44 and the nut 43 are connected by threads.When it is working, first, the staff pours the seeds into the storage chamber of the protective box 11 through the feed hopper 14, and prevents the seeds from directly entering the discharge pipe 16 and being discharged by setting the first baffle 15. The main shaft 12 drives the first pulley 31 to rotate, and the first pulley 31 drives the second pulley 33 and the rotating shaft 32 to rotate through the belt 34. The rotating shaft 32 drives the exhaust fan 35 to rotate, and the exhaust fan 35 extracts the air in the negative pressure chamber through the exhaust plate 21, and discharges the air through the exhaust pipe 36, so that the seeds are adsorbed in the vent of the suction cup 13. The main shaft 12 drives the suction cup 13 to rotate. According to the type of seed, the staff rotates the bolt 44, and the bolt 44 presses the spring plate 42 downward to adjust the distance between the spring plate 42 and the seed, so that the spring plate 42 moves the seed and adjusts the direction of the seed. When the seed moves to the normal pressure, it falls from the vent and is discharged through the discharge pipe 16. The air flushing mechanism 05 flushes the impurities into the normal pressure chamber. The staff regularly opens the drain valve 24 to discharge the impurities through the drain pipe 23. ;

[0024] Example 2

[0025] like Figures 1 to 7 As shown, the utility model is an air-suction high-speed precision seed metering device, based on embodiment 1; the air impulse mechanism 05 includes a second baffle 51, an air hose 52, a connecting pipe 53, a boost valve 54 and a nozzle 55, the second baffle 51 is installed on the protective box 11 and is located in the storage cavity, the air hose 52 is connected to the interior of the exhaust pipe 36, the connecting pipe 53 is installed in the storage cavity of the protective box 11 and is connected to the interior of the air hose 52, the boost valve 54 is installed on the connecting pipe 53, and the nozzle 55 is installed on the connecting pipe 53; when it is working, first, the staff pours the seeds into the storage cavity of the protective box 11 through the feed hopper 14, and prevents the seeds from directly entering the discharge pipe 16 for discharge by setting the first baffle 15, the main shaft 12 drives the first pulley 31 to rotate, the first pulley 31 drives the second pulley 33 and the rotating shaft 32 to rotate through the belt 34, and the rotating shaft 32 drives the exhaust fan 3 5 rotates, and the exhaust fan 35 draws out the air in the negative pressure chamber through the exhaust plate 21 and discharges the air through the exhaust pipe 36, so that the seeds are adsorbed in the vent holes of the suction cup 13. The main shaft 12 drives the suction cup 13 to rotate. According to the seed type, the staff rotates the bolt 44, which presses the spring plate 42 downward, adjusts the distance between the spring plate 42 and the seed, and causes the spring plate 42 to move the seed and adjust the seed direction. When the seed moves to the normal pressure area, it falls through the vent hole and is discharged through the discharge pipe 16. The second baffle 51 peels off the seeds stuck in the vent hole of the suction cup 13. The air in the exhaust pipe 36 is transported to the connecting pipe 53 through the air hose 52. The pressure of the air flow in the connecting pipe 53 is increased by setting a boost valve 54. The air rushes out through the nozzle 55 to blow out the impurities stuck in the vent hole and flush the impurities into the normal pressure chamber. The staff regularly opens the drain valve 24 to discharge the impurities through the drain pipe 23.

[0026] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An air-suction high-speed precision seed metering device, comprising a storage mechanism (01); characterized in that, The device further comprises a debris removal mechanism (02), an air extraction mechanism (03), a toggle mechanism (04) and an air blow mechanism (05), wherein the debris removal mechanism (02) is mounted on the storage mechanism (01) and discharges impurities stuck in the holes, the air extraction mechanism (03) is mounted on the storage mechanism (01) and extracts air from the device, the toggle mechanism (04) is mounted on the storage mechanism (01) and toggle the seeds in the right direction, and the air blow mechanism (05) is mounted on the storage mechanism (01) and blows the stuck impurities into the debris removal mechanism (02).

2. The air-suction high-speed precision seed metering device according to claim 1, characterized in that: The storage mechanism (01) includes a protective box (11), a main shaft (12), a suction cup (13), a feed hopper (14), a first baffle (15) and a discharge pipe (16), wherein the protective box (11) is mounted on a working surface, the main shaft (12) is rotatably mounted in the protective box (11), the suction cup (13) is rotatably mounted in the protective box (11) and forms a storage cavity with the protective box (11), a plurality of groups of vent holes are provided on the suction cup (13), the feed hopper (14) is mounted on the protective box (11) and communicates with the interior of the storage cavity, the first baffle (15) is mounted in the storage cavity of the protective box (11), and the discharge pipe (16) is mounted on the protective box (11) and communicates with the interior of the storage cavity.

3. The air-suction high-speed precision seed metering device according to claim 2, characterized in that: The impurity discharge mechanism (02) includes an exhaust plate (21), a partition (22), a drain pipe (23) and a drain valve (24), wherein the exhaust plate (21) is installed in the protective box (11), a negative pressure chamber is provided between the exhaust plate (21) and the suction cup (13), an equipment chamber is provided between the exhaust plate (21) and the protective box (11), the partition (22) is installed on the exhaust plate (21) and is located in the negative pressure chamber, a normal pressure chamber is provided between the partition (22) and the suction cup (13), the top end of the drain pipe (23) is connected to the bottom end of the protective box (11), the drain pipe (23) is communicated with the inside of the normal pressure chamber, and the drain valve (24) is installed on the drain pipe (23).

4. The air-suction high-speed precision seed metering device according to claim 3, characterized in that: The exhaust mechanism (03) includes a first pulley (31), a rotating shaft (32), a second pulley (33), a belt (34), an exhaust fan (35) and an exhaust pipe (36), wherein the first pulley (31) is mounted on the main shaft (12), the rotating shaft (32) is rotatably mounted on the protective box (11) and is located in the equipment cavity, the second pulley (33) is mounted on the rotating shaft (32), the belt (34) is tensioned and mounted between the first pulley (31) and the second pulley (33), the exhaust fan (35) is mounted on the rotating shaft (32), and the exhaust pipe (36) is mounted on the protective box (11) and is communicated with the interior of the equipment cavity.

5. The air-suction high-speed precision seed metering device according to claim 2, characterized in that: The toggle mechanism (04) includes a fixed column (41), a spring plate (42), a nut (43) and a bolt (44), wherein the fixed column (41) is mounted on the protection box (11) and is located in the storage cavity, the spring plate (42) is mounted on the fixed column (41), the bottom end of the nut (43) is connected to the top end of the protection box (11), and the bolt (44) and the nut (43) are connected by threads.

6. The air-suction high-speed precision seed metering device according to claim 4, characterized in that: The air impact mechanism (05) includes a second baffle (51), an air delivery hose (52), a connecting pipe (53), a pressure boosting valve (54) and a nozzle (55), wherein the second baffle (51) is mounted on the protective box (11) and is located in the storage chamber, the air delivery hose (52) is connected to the interior of the exhaust pipe (36), the connecting pipe (53) is mounted in the storage chamber of the protective box (11) and is connected to the interior of the air delivery hose (52), the pressure boosting valve (54) is mounted on the connecting pipe (53), and the nozzle (55) is mounted on the connecting pipe (53).

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