CN207766857U - American Ginseng strength pin type essence quantity set arranges device - Google Patents

Abstract

The utility model discloses an American ginseng pneumatic needle type precision collector, which comprises a support frame. The support frame is provided with a seed box and an air chamber combination. Air pipe, below the air chamber combination is provided with a seed filling chamber communicating with the seed box, and a seed drop assembly is provided on one side of the air chamber combination; the air chamber combination includes an air chamber, and the air chamber is provided with a The positive pressure area communicated with the positive pressure air delivery pipe and the negative pressure area communicated with the negative pressure air delivery pipe, a rotating disk is arranged on one side of the air chamber, and a rotating shaft is fixedly connected to the rotating disk, and the A plurality of air pressure distribution pipes are connected to the rotating disk, and seed suction needles are evenly distributed on the air pressure distribution pipes; several seed drop pipes that cooperate with the seed suction needles are arranged on the seed drop assembly. The collecting and arranging device arranges American ginseng seeds uniformly, has good seed protection effect and high seeding efficiency.

Description

American ginseng pneumatic needle type precision collector

technical field

The utility model relates to the technical field of sowing in agricultural machinery, in particular to an American ginseng pneumatic needle type precision collector.

Background technique

American ginseng is a precious tonic medicine with special therapeutic value. With the improvement of people's quality of life and the increase in demand for health care products, the area of introduction and cultivation of American ginseng in Northeast, North, and Central China is also expanding. The planting mode of American ginseng is harvesting after four years of live broadcasting, and there is also two years of live seedling cultivation and then transplanting and planting for two years before harvesting. Whether it is live-harvesting or live-transplanting-harvesting, the planting density of the sowing is relatively high. The row spacing stipulated by agronomy is 5-7cm, the sowing is dense and the seeds are required to be evenly distributed in the field, which is conducive to cycle management and plant growth.

Because American ginseng grains are irregular in shape and flat D-shaped, and the seeds are in a cracked state after germination treatment during sowing, and the seed embryos are easily damaged. The existing seed metering device is difficult to meet the requirements. At present, domestic American ginseng is mainly sown on demand by manpower. The common method is to first use a stamper to press out the holes, and then put the seeds into the holes one by one, which is low in work efficiency, labor-intensive, and labor-intensive; There are also those who adopt drill or sowing seeds. Drilling and sowing seeds consume a lot of money. American ginseng seeds are expensive and costly. Therefore, there is an urgent need for a seeder suitable for American ginseng sowing in actual production, and the seeding device is the core component of the seeder.

Contents of the invention

The purpose of the utility model is to provide an American ginseng pneumatic needle-type precision collector, which can discharge American ginseng seeds evenly, has good seed protection effect and high seeding efficiency.

In order to achieve the above purpose, the technical solution adopted by the utility model is: an American ginseng pneumatic needle type precision collector, including a support frame, a seed box and an air chamber combination are arranged on the support frame, and a There are positive pressure air pipes and negative pressure air pipes, a seed filling chamber communicated with the seed box is provided under the air chamber combination, and a seed drop assembly is arranged on one side of the air chamber combination;

The air chamber combination includes an air chamber, the air chamber is provided with a positive pressure area communicated with the positive pressure air delivery pipe and a negative pressure area communicated with the negative pressure air delivery pipe, one side of the air chamber is provided with a rotating A disk, the rotating disk is fixedly connected with a rotating shaft, and a plurality of air pressure distribution pipes are connected to the rotating disk, and seed suction needles are evenly distributed on the air pressure distribution pipes;

The seed drop assembly is provided with several seed drop tubes that cooperate with the seed suction needles.

Further, the seed drop assembly includes a seed drop support fixed on the support frame, the seed drop tube is fixed on the seed drop support, and the seed drop tube is provided with a seed suction needle avoidance hole .

Further, the top plane of the seed drop tube is higher than the plane of the seed suction needle when it is rotated to a horizontal position.

Further, the seed suction needle includes a cylindrical portion and a tapered cylindrical portion, the cylindrical portion is screwed to the air pressure distribution pipe, and the diameter of the cylindrical portion is 0.63-0.65 times the average width of American ginseng seeds.

Further, the seed-filling chamber includes an arc-shaped bottom plate of the seed-filling chamber, side plates of the seed-filling chamber are arranged on both sides of the bottom plate of the seed-filling chamber, and a seed-filling plate is arranged on the top of one side of the bottom plate of the seed-filling chamber. Several seed-filling indoor arch bridges are arranged at intervals on the bottom plate of the seed-filling chamber, and a detachable seed-unloading plate is provided on the bottom plate of the seed-filling chamber.

Further, the inclination angle of the seed-filling plate>the natural angle of repose of American ginseng seeds; the bending radius of the bottom plate of the seed-filling chamber>the turning radius of the seed-suction needle; the inclination angle of the arch bridge in the seed-filling chamber>the natural angle of repose of American ginseng seeds angle of repose.

Further, the air chamber includes a left outer air chamber, a middle air chamber, and a right outer air chamber fixed on the support frame from left to right; the rotating disk includes a left outer air chamber rotating disk, a left inner air chamber Chamber rotating disc, right inner air chamber rotating disc and right outer air chamber rotating disc; the rotating shaft includes the left seeding shaft, the left rotating disc shaft, the right rotating disc shaft and the right seeding shaft; the air pressure distribution pipe includes The left air pressure distribution pipe and the right air pressure distribution pipe; the left outer air chamber, the middle air chamber and the right outer air chamber are respectively provided with the positive pressure area communicated with the positive pressure air delivery pipe and connected with The negative pressure area connected by the negative pressure air pipe, the left outer air chamber rotating disk is arranged on the right side of the left outer air chamber, the left inner air chamber rotating disk is arranged on the left side of the middle air chamber, and the middle air chamber rotating disk is arranged on the left side of the middle air chamber. The right side of the air chamber is provided with a right inner air chamber rotating disk, the left side of the right outer air chamber is provided with a right outer air chamber rotating disk, and the left outer air chamber rotating disk is connected with the left inner air chamber rotating disk. A plurality of said left air pressure distribution pipes, a plurality of said right air pressure distribution pipes are connected between said right inner air chamber rotating disc and said right outer air chamber rotating disc, said left air pressure distributing pipes and said The seed suction needles are evenly distributed on the air pressure distribution pipe on the right; one end of the left seeding shaft is connected to the transmission device, and the other end is fixedly connected to the left outer air chamber rotating disk, and the left rotating disk shaft is connected to the left The inner air chamber rotating disk is fixedly connected, the right rotating disk shaft is fixedly connected to the right inner air chamber rotating disk, one end of the right seeding shaft is connected to the transmission device, and the other end is fixed to the right outer air chamber rotating disk connect.

Further, the left outer air chamber or the right outer air chamber includes an air outer cylinder, one side of the air outer cylinder is closed, and the other side is provided with a rotating disk connection step, and the center of the air outer cylinder is coaxially provided with An air chamber inner cylinder, an air chamber partition and an air chamber support plate are connected between the air chamber outer cylinder and the air chamber inner cylinder, and the air chamber partition divides the annular area formed by the air chamber outer cylinder and the air chamber inner cylinder into the positive pressure zone and the negative pressure zone.

Further, the intermediate air chamber includes an air outer cylinder, and both sides of the air outer cylinder are provided with rotating disk connecting steps, and the center of the air outer cylinder is coaxially provided with an air inner cylinder, and the air outer cylinder is connected to the air outer cylinder. An air chamber partition and an air chamber support plate are connected between the air chamber cylinders, and the air chamber partition divides the annular area formed by the air chamber outer cylinder and the air chamber inner cylinder into the positive pressure area and the negative pressure area .

Furthermore, the air chamber baffle includes an upper baffle and a lower baffle, the upper baffle is arranged horizontally, the upper baffle and the lower baffle form an included angle of 30-60 degrees, and the included angle The corresponding gas outer cylinder is provided with a positive pressure air intake pipe, and the positive pressure air intake pipe is connected with the positive pressure air delivery pipe. The trachea is connected with the negative pressure air delivery pipe.

Compared with the prior art, the utility model has the following advantages:

First, the design of the positive and negative pressure areas of the air chamber realizes negative pressure seed picking and positive pressure seeding. Compared with mechanical seed metering devices, it has better applicability to the shape of grains, lower seed damage rate, better seed protection effect, and uniform seeding. High, can achieve single-grain precision sowing, reduce seed waste, save costs, and have high sowing efficiency.

Second, the bottom plate structure design of the seed filling chamber avoids the rotation area of the needle, and can ensure that there are always seeds available for filling in the seed suction area of the seed suction needle at the bottom of the seed filling chamber during the sowing process; the arch bridge design of the seed filling chamber can Enhance the recovery ability of seeds, increase the disturbance of seeds, and make the process of sucking seeds smoother.

Third, the hole diameter of the seed suction needle is designed to be smaller than the average geometric particle diameter of American ginseng seeds. When taking seeds, the seeds are adsorbed on the surface of the through hole of the seed suction needle and will not enter the through hole of the seed suction needle, effectively avoiding seed damage and through hole blockage.

Fourth, the utility model adopts the pneumatic seeding technology to move the seeds through the force of the air flow, which has strong adaptability to the shape of the grain and is not easy to damage the seeds, and the utility model can replace seed suction needles with different apertures according to the particle size of the seeds, increasing the The scope of application of the seed meter. The utility model has good adaptability to the shape of the grain, is not easy to damage the seeds, can realize precise sowing of a single grain, and can meet the sowing requirements of the American ginseng in narrow width sowing in multiple rows, and is suitable for sowing the American ginseng.

Fifth, the utility model is the first to open a ventilation hole on the rotating disk, connect the air pressure distribution pipe, and then arrange the seed suction needle on the air pressure distribution pipe, and innovate one row of side suction of the traditional pneumatic seed meter into a multi-row collection row , a breakthrough has been made in the seed arrangement efficiency and seed protection effect, and unexpected technical effects have been obtained.

Description of drawings

Fig. 1 is a schematic structural diagram of an American ginseng pneumatic needle type precision collector.

FIG. 2 is a schematic cross-sectional structure diagram of FIG. 1 .

FIG. 3 is a schematic side view of the structure of FIG. 1 .

FIG. 4 is a schematic top view of the structure of FIG. 1 .

Fig. 5 is a schematic diagram of the structure of the left outer air chamber in Fig. 1 .

Fig. 6 is a schematic diagram of the structure of the intermediate air chamber in Fig. 1 .

Fig. 7 is a schematic diagram of the structure of the right outer air chamber in Fig. 1 .

Fig. 8 is a schematic diagram of the combined structure of the gas chamber in Fig. 1 .

Fig. 9 is a structural schematic diagram of the left outer air chamber rotating disc, the left inner air chamber rotating disc, the right inner air chamber rotating disc, and the right outer air chamber rotating disc in Fig. 1 .

Fig. 10 is a schematic diagram of the structure of the seed filling chamber in Fig. 1 .

Fig. 11 is a schematic diagram of the seed dropping assembly in Fig. 1 .

Fig. 12 is a schematic diagram of the structure of the seed suction needle in Fig. 1 .

Detailed ways

The utility model will be further described in detail below in conjunction with the accompanying drawings to facilitate a clearer understanding of the utility model, but they do not limit the utility model.

The American ginseng pneumatic needle-type precision collector shown in Figures 1 to 4 includes a support frame 1 and passes through the left outer air chamber 9 (as shown in Figure 5), the middle air chamber 13 (as shown in Figure 6), The right outer air chamber 20 (as shown in Figure 7) is fixed on the air chamber combination 3 (as shown in Figure 8) on the support frame 1, and the air delivery pipe 2 that is welded on the upper part of the support frame 1 and is located above the air chamber combination 3 The seed filling chamber 7, which is connected to the left outer air chamber 9, the middle air chamber 13, and the right outer air chamber 20 by screws, and located below the air chamber combination 3, is fixed on the support plate of the support frame 1 with screws Install the seed box 5 positioned at the front of the air chamber combination 3, fix and install the seed drop assembly 8 positioned at the rear of the air chamber combination 3 with a U-shaped card, and the air chamber combination 3 includes a left outer air chamber 9, a left Outer air chamber rotating disk 10, left side seeding shaft 11, left inner air chamber rotating disk 12, middle air chamber 13, left air pressure distribution pipe 14, left inner air chamber rotating disk 15, left rotating disk shaft 16, right outer air chamber Chamber rotating disk 17, right rotating disk shaft 18, right air pressure distribution pipe 19, right outer air chamber 20, right seeding shaft 21, both ends of the left air pressure distribution pipe 14 are fixed on the left outer air chamber rotating disk 10 And on the left inner air chamber rotating disk 12, communicate with the through holes of the left outer air chamber rotating disk 10 and the left inner air chamber rotating disk 12 as a whole, and the left outer air chamber rotating disk 10 is rigidly connected with the left side seeding shaft 11 to form a As a whole, it is installed on the left outer air chamber 9 through bearings, the left inner air chamber rotating disk 12 is rigidly connected with the left rotating disk shaft 16, and is connected to the middle air chamber 13 through bearings, and the structure on the right side of the air chamber combination is symmetrical to the left side.

In the above scheme, the air chamber 100 of the air chamber combination 3 is composed of three air chambers, the left outer air chamber 9, the middle air chamber 13 and the right outer air chamber 20, which are arranged horizontally and coaxially at a certain distance; 10. The structures of the four rotating disks 200, the left inner air chamber rotating disk 12, the right inner air chamber rotating disk 15 and the right outer air chamber rotating disk 17, are shown in Figure 9; the rotating shaft 300 includes the left seeding shaft 11 , the left rotating disc shaft 16, the right rotating disc shaft 18 and the right side seeding shaft 21, the left side seeding shaft 11 and the right side seeding shaft 21 are respectively connected to the transmission; the air pressure distribution pipe 400 includes the left side air pressure distribution pipe 14 and the right side Side air pressure distribution pipe 19.

In the above scheme, the left outer air chamber 9 includes an air outer cylinder 22, an air inner cylinder 23, an air chamber partition 24, an air chamber support plate 25, and an air chamber base 26. One end of the left outer air chamber is sealed, and the other end is stepped. , with a left outer air chamber rotary disc 10 that is matched and connected. The stepped design can effectively prevent air leakage and ensure airtightness. The air chamber inner cylinder 23 is connected with the air chamber outer cylinder 22 through the air chamber support plate 25 and the air chamber partition 24. The air chamber The upper dividing plate of dividing plate 24 is horizontal, that is: the upper dividing plate and the central axis are located on the same horizontal line, and the angle between the upper and lower dividing plates is 50 degrees. In the horizontal position, the negative pressure area enters the positive pressure area, and under the action of positive pressure and self-weight drop, the air chamber partition divides the annular area formed by the air outer cylinder 22 and the air inner cylinder 23 into a positive pressure area 27 and a negative pressure area 28 , in order to effectively reduce the confluence of positive and negative pressures caused when the air pressure distribution pipe rotates to the position of the air chamber partition 24, and ensure the stability of the air flow, the thickness of the air chamber partition 24 is appropriately increased, and the outer wall of the air chamber 22 corresponds to the positive pressure area 27 is provided with a positive pressure intake pipe 29, and the position corresponding to the negative pressure area is provided with a negative pressure exhaust pipe 30. The right outer air chamber 20 has the same structure as the left outer air chamber 9, and they are installed symmetrically. The two ends of the middle air chamber 13 are ventilated. Also be provided with a stepped ring, the left side is connected with the left inner air chamber rotating disk 12, the right side is connected with the right inner air chamber rotating disk 15, and the internal structure is the same as the left outer air chamber 9.

In the above scheme, four through holes are axially distributed on the left outer air chamber rotating disk 10 and the left inner air chamber rotating disk 12, and the left air pressure distribution pipe is connected between every two corresponding through holes, and each left air pressure distribution pipe A plurality of threaded holes are evenly distributed on the distributing pipe 14, which are used to thread the same number of seed suction needles 4, and the seed suction needles are axially radial, that is, the passages on the left outer air chamber rotating disk 10 and the left inner air chamber rotating disk 12. When the hole was forwarded to the horizontal position, the seed suction needle 4 on the left air pressure distribution pipe 14 was in a horizontal state.

In the above scheme, the air delivery pipe 2 has a negative pressure air delivery pipe 2a and a positive pressure air delivery pipe 2b, two air inlets are evenly distributed on the upper part of the air delivery pipe, three air outlets are evenly distributed on the lower part, and the three air outlets on the negative pressure air delivery pipe 2a The positions correspond to the negative pressure suction pipes 30 on the left outer air chamber 9, the middle air chamber 13, and the right outer air chamber 20 respectively, and the positions of the three air outlets on the positive pressure air delivery pipe 2b correspond to the positions of the positive pressure air inlet pipe 29. correspond. The left outer air chamber rotating disk 10, the left inner air chamber rotating disk 12, the right outer air chamber rotating disk 17, and the right inner air chamber rotating disk 15 are all stepped, that is, the rotating disks are provided with connecting steps 500 on the side.

In the above solution, as shown in FIG. 10 , the seed filling chamber 7 includes a seed filling plate 7a, a seed filling chamber side plate 7b, a seed filling chamber bottom plate 7c, a seed filling chamber arch bridge 7d and a seed unloading plate 7e. The inclination angle of the seed filling plate is 51 degrees, which is greater than the natural angle of repose of American ginseng seeds. The third is to enable the seeds transferred to the seed filling plate 7a during the seed suction process to flow back into the effective seed suction area. The bending radius of the seed filling bottom plate 7c is appropriately greater than the radius of gyration of the seed suction needle 4, the purpose is to avoid the rotation of the seed suction needle and increase the disturbing effect of the seeds, and the increase of the population force and friction force makes the American ginseng seeds easier to be adsorbed; The seed-filling indoor arch bridge 7d divides the seed-filling room into 12 seed-filling units. The inclination angle of the seed-filling indoor arch bridge 7d is larger than the natural angle of repose of American ginseng seeds, which is beneficial to filling the gap after the seeds are adsorbed. The distance between adjacent arch bridges in the seed-filling room is different. Interfering with the rotation of the seed suction needle 4 can ensure that there are always seeds when the seed suction needle rotates to the seed filling area, so as to avoid too small a distance from hindering the rotation of the seed suction needle or too large a distance to cause the seed suction needle to have a gap in the rotation track of the seed filling area. In the blank area, the seed suction process is affected; on the bottom plate 7c of the seed filling chamber, a seed unloading plate 7e is threadedly connected. After the sowing is completed, the seed unloading plate 7e can be removed to remove the redundant seeds with a brush, without the need for filling the seed The whole chamber is disassembled, which is easy and convenient to use.

In the above scheme, as shown in FIG. 11 , the seed drop assembly 8 includes a seed drop tube 8a, a seed drop support 8b, and a seed drop support welding block 8c. The top plane of 8a is slightly higher than the plane when the seed suction needle 4 rotates to the horizontal position, and its purpose is to ensure that the American ginseng seeds can fall into the seed drop tube in time after entering the positive pressure zone. There is a 14x85 rectangular hole on the seed drop tube, the purpose of which is: first, to avoid the rotation of the seed suction needle 4; The seeds can be mechanically scraped off when the bottom of the hole intersects. The opening width of the seed-absorbing needle avoidance hole 8d is greater than the maximum diameter of the part entering the pipe when the seed-absorbing needle 4 reaches the horizontal position, and the opening length is greater than the vertical length of the seed-absorbing needle doing circular motion in the seed-dropping tube 8a, and the number of seed-dropping tubes 8a It is consistent with the number of sowing rows of American ginseng. A seed-filling tube 6 and a seed-filling indoor arch bridge 7d are distributed between each group of seed-suction needles 4, and each group of seed-suction needles 4 corresponds to a seed-dropping tube 8a, and the seed-filling tube 6 drains American ginseng seeds to the seed-filling chamber 7 Inside, each seed-filling tube 6 supplies seeds for a seed-filling unit, and one seed-filling unit can be used for two groups of seed-suction needles 4 to charge seeds.

In the above scheme, as shown in Figure 12, the aperture range of the seed suction needle 4 is 0.63D to 0.65D, wherein D is the average width of American ginseng seeds, and the seed suction needle 4 includes a cylindrical part 4.1 and a cone part 4.2. 4 The tip adopts a cone structure, the inlet cone angle of the suction nozzle is 90 degrees, the cylindrical part 4.1 is threaded with the air pressure distribution pipe, the thread length is 5-7mm, the purpose of the threaded connection between the suction needle 4 and the air pressure distribution pipe is: one. To ensure air tightness; secondly, injection molding processing technology can be used to save costs for the seed suction needle; thirdly, changing the hole size of the seed suction needle 4 can be applied to live broadcasting operations of different crops. When the seed suction needle 4 rotates to the negative pressure area, it sucks and carries the seeds in the seed filling area, and after continuing to rotate to the positive pressure area, American ginseng falls into the seed drop tube by its own gravity and positive pressure to realize the seed drop process.

From the above, it can be seen that the two ends of the left air pressure distribution pipe 14 are fixed on the left outer air chamber rotating disk 10 and the left inner air chamber rotating disk 12, and the through holes with the left outer air chamber rotating disk 10 and the left inner air chamber rotating disk 12 Unicom into a whole, and the left outer air chamber rotary disc is rigidly connected with the left seeding shaft as a whole, when the left seeding shaft 11 rotates a circle under the drive of the seeding sprocket, the left outer air chamber rigidly connected with it The rotating disk also rotates a circle thereupon, and the left air pressure distribution pipe 14 which is connected as a whole with the left outer air chamber rotating disk 10 and the left inner air chamber rotating disk 12 rotates thereupon. Seed suction needle 4 also rotates one week thereupon, completes the process of taking seeds, carrying seeds, throwing seeds, and dropping seeds. The transmission on the right side is the same as that on the left side. The quantity of the seed suction needle 4 is equal to the quantity of the seed drop pipe 8a, and when the seed suction needle 4 is rotated to the horizontal seed drop position, the through hole at the front end of the seed suction needle can extend into the seed drop pipe 8a. The position can be accurately dropped into the seed drop tube under the blowing force of positive pressure and its own gravity.

The working process of the present utility model is as follows:

First, the seeds are loaded into the seed box 5, and the seeds flow into the seed filling chamber 7 through the seed filling pipe 6 under the action of their own weight to complete the seed filling process; the negative pressure air pipe 2a obtains negative pressure from the fan, and the positive pressure air pipe 2b from Positive pressure is obtained at the blower fan, and the positive pressure is filled with the positive pressure area 27 through the positive pressure inlet pipe 29, and the negative pressure is filled with the negative pressure area 28 through the negative pressure suction pipe 30, and the positive pressure of the positive pressure area 27 and the negative pressure of the negative pressure area 28 pass through The through holes on the left outer air chamber rotating disk 10, the left inner air chamber rotating disk 12, the right inner air chamber rotating disk 15, and the right outer air chamber rotating disk 17 enter the left air pressure distribution pipe 14 and the right air pressure distribution pipe 19 , so as to enter the seed suction needle 4, when the seed sprocket wheel on the left side seeding shaft 11 and the right side seeding shaft 21 drives the left side seeding shaft 11 and the right side seeding shaft 21 to rotate under the action of power, the left side The rotation of the side seeding shaft 11 drives the integral rotation of the left outer air chamber rotating disk 10, the left air pressure distribution pipe 14, the left rotating disk shaft 16, and the left inner air chamber rotating disk 12, and the rotation of the right side seeding shaft 21 drives the right Outer air chamber rotating disk 17, right air pressure distribution pipe 19, right rotating disk shaft 18, right inner air chamber rotating disk 15 are integrally rotated, screwed on left air pressure distribution pipe 14 and right air pressure distribution pipe 19 The seed suction needle 4 rotates thereupon, when the through holes on the left outer air chamber rotating disk 10, the left inner air chamber rotating disk 12, the right inner air chamber rotating disk 15 and the right outer air chamber rotating disk 17 rotate to the air chamber dividing plate The lower partition of 24, when entering the negative pressure zone 28, the left air pressure distribution pipe 14 and the right air pressure distribution pipe 19 and the seed suction needle 4 connected thereto are gradually filled with negative pressure, and the seed suction needle is sucked under the adsorption of negative pressure. The through hole on the 4 sucks the seed from the single grain in the seed filling chamber 7, and the adsorption force, population force and friction force make the single grain of the seed adsorb at the pinhole and rotate with the seed suction needle 4 to complete the seed taking process; then The through holes on the left outer air chamber rotating disk 10, the left inner air chamber rotating disk 12, the right inner air chamber rotating disk 15 and the right outer air chamber rotating disk 17 are on the left side seeding shaft 11 and the right side seeding shaft 21. Continue to rotate under the drive, and be in the negative pressure zone before rotating to the upper partition of the air chamber dividing plate 24, the left side air pressure distribution pipe 14, the right side air pressure distribution pipe 19 and the seed suction needle 4 are full of negative pressure, and the seeds are always sucked. Adsorbed at the through hole of the seed suction needle 4, the process of carrying the seeds is completed; further, when the left outer air chamber rotating disk 10, the left inner air chamber rotating disk 12, the right inner air chamber rotating disk 15 and the right outer air chamber rotating disk The through hole on the 17 rotates to the upper dividing plate of the air chamber dividing plate 24 and continues to rotate into the positive pressure area 27, and the negative pressure in the left side air pressure distribution pipe 14, the right side air pressure distribution pipe 19 and the seed suction needle 4 decreases, gradually Full of positive pressure, under the blowing force of the positive pressure and its own weight, the seeds adsorbed on the through hole of the seed suction needle 4 fall, and the seeding process is completed; Under the action of the rotator, do a parabolic motion, fall into the seed drop pipe 8a, and discharge through the seed drop pipe 8a, and complete the seed drop process. After sowing, use a hairbrush to remove the remaining seeds through the seed discharge plate.

Claims (10)

1. A kind of American ginseng pneumatic needle type precision collector, comprising a support frame (1), it is characterized in that: the support frame (1) is provided with a seed box (5) and an air chamber combination (3), the air chamber A positive pressure air pipe (2b) and a negative pressure air pipe (2c) are provided above the chamber combination (3), and a seed filling chamber (7) communicating with the seed box (5) is provided below the air chamber combination (3). ), one side of the air chamber combination (3) is provided with a seed drop assembly (8); The air chamber combination (3) includes an air chamber (100), and the air chamber (100) is provided with a positive pressure zone (27) communicated with the positive pressure air delivery pipe (2b) and connected with the negative pressure delivery pipe (2b). Negative pressure zone (28) that trachea (2c) communicates, described air chamber one side is provided with rotating disk (200), is fixedly connected with rotating shaft (300) on described rotating disk (200), and described rotating disk ( 200) is connected with a plurality of air pressure distribution pipes (400), and the air pressure distribution pipes (400) are evenly distributed with seed suction needles (4); The seed dropping assembly (8) is provided with several seed dropping tubes (8a) matched with the seed suction needles (4). 2. The American ginseng pneumatic needle type precision collector according to claim 1, characterized in that: the seed drop assembly (8) includes a seed drop support (8b) fixed on the support frame (1), The seed drop tube (8a) is fixed on the seed drop support (8b), and the seed drop tube (8a) is provided with a seed suction needle avoidance hole (8d). 3. American ginseng pneumatic needle type precision collector according to claim 1, characterized in that: The top plane of the seed drop tube (8a) is higher than the plane of the seed suction needle (4) when it is rotated to a horizontal position. 4. The American ginseng pneumatic needle type precision collector according to claim 1, characterized in that: the seed suction needle (4) includes a cylindrical part (4.1) and a cone part (4.2), and the cylindrical part (4.1) is threadedly connected with the air pressure distribution pipe, and the hole diameter of the cylindrical part (4.1) is 0.63-0.65 times the average width of American ginseng seeds. 5. According to claim 1, the American ginseng pneumatic needle type precision collector is characterized in that: the seed filling chamber (7) includes an arc-shaped bottom plate (7c) of the seed filling chamber, and the bottom plate of the seed filling chamber ( 7c) The side plates (7b) of the seed filling chamber are arranged on both sides, and the top of one side of the bottom plate of the seed filling chamber (7c) is provided with a seed filling plate (7a). The arch bridge (7d) in the seed chamber, and the bottom plate (7c) of the seed filling chamber is provided with a detachable seed unloading plate (7e). 6. According to claim 5, the American ginseng pneumatic needle-type precision collector is characterized in that: the inclination angle of the seed filling plate (7a) > the natural angle of repose of the American ginseng seeds; the bottom plate of the seed filling chamber (7c) Bending radius > radius of gyration of the seed suction needle (4); angle of inclination of the seed-filling indoor arch bridge (7d) > natural angle of repose of American ginseng seeds. 7. The American ginseng pneumatic needle-type precision collector according to claim 1, characterized in that: the air chamber (100) includes a left outer air chamber that is sequentially fixed on the support frame (1) from left to right (9), the middle air chamber (13) and the right outer air chamber (20); the rotating disk (200) includes the left outer air chamber rotating disk (10), the left inner air chamber rotating disk (12), the right inner air chamber chamber rotating disc (15) and right outer air chamber rotating disc (17); Side seeding shaft (21); the air pressure distribution pipe (400) includes a left air pressure distribution pipe (14) and a right air pressure distribution pipe (19); the left outer air chamber (9), the middle air chamber (13) and the right outer air chamber (20) are respectively provided with the positive pressure area (27) communicated with the positive pressure air pipe (2b) and the negative pressure air pipe (2c) communicated In the negative pressure zone (28), the left outer air chamber rotating disk (10) is provided on the right side of the left outer air chamber (9), and the left inner air chamber rotating disk is provided on the left side of the middle air chamber (13). (12), the right side of the middle air chamber (13) is provided with a right inner air chamber rotating disk (15), and the left side of the right outer air chamber (20) is provided with a right outer air chamber rotating disk (17), so A plurality of left air pressure distribution pipes (14) are connected between the left outer air chamber rotating disk (10) and the left inner air chamber rotating disk (12), and the right inner air chamber rotating disk (15) is connected with the left inner air chamber rotating disk (12). The right outer air chamber rotating disk (17) is connected with a plurality of right air pressure distribution pipes (19), and the left air pressure distribution pipe (14) and the right air pressure distribution pipe (19) are respectively The seed suction needles (4) are evenly distributed; one end of the left side seeding shaft (11) is connected to the transmission device, and the other end is fixedly connected with the left outer air chamber rotating disc (10), and the left rotating disc shaft (16 ) is fixedly connected with the left inner air chamber rotating disc (12), the right rotating disc shaft (18) is fixedly connected with the right inner air chamber rotating disc (15), and the right side seeding shaft (21) One end is connected with the transmission device, and the other end is fixedly connected with the rotating disk (17) of the right outer air chamber. 8. According to claim 7, the American ginseng pneumatic needle type precision collector is characterized in that: the left outer air chamber (9) or the right outer air chamber (20) includes an air outer cylinder (22), so One side of the air outer cylinder (22) is closed, and the other side is provided with a rotating disc connection step (500). The central air cylinder (22) is coaxially provided with an air inner cylinder (23). 22) An air chamber partition (24) and an air chamber support plate (25) are connected between the air chamber inner cylinder (23), and the air chamber partition (24) connects the air chamber outer cylinder (22) and the air chamber support plate (25). The annular area formed by the air inner cylinder (23) is divided into the positive pressure area (27) and the negative pressure area (28). 9. According to claim 7, the American ginseng pneumatic needle type precision collector is characterized in that: the intermediate air chamber (13) includes an air outer cylinder (22), and both sides of the air outer cylinder (22) are provided with There is a rotary disc connection step (500), the air inner cylinder (23) is coaxially arranged in the center of the air outer cylinder (22), and an air cylinder (23) is connected between the air outer cylinder (22) and the air inner cylinder (23). The air chamber partition (24) and the air chamber support plate (25), the air chamber partition (24) divides the annular area formed by the air outer cylinder (22) and the air inner cylinder (23) into the positive pressure zone (27) and said negative pressure zone (28). 10. According to claim 8 or 9, the American ginseng pneumatic needle type precision collector is characterized in that: the air chamber partition (24) includes an upper partition and a lower partition, and the upper partition is arranged horizontally, The upper baffle and the lower baffle form an angle of 30 to 60 degrees, and the air outer tube (22) corresponding to the angle is provided with a positive pressure air intake pipe (29), and the positive pressure air intake pipe (29 ) is connected with the positive pressure air delivery pipe (2b), and the opposite gas outer cylinder (22) of the described angle is provided with a negative pressure air extraction pipe (30), and the negative pressure air extraction pipe (30) is connected with the negative pressure Air pipe (2c) is connected.