CN108684262A - A kind of feed mechanism for seed of rice breeding cell precise sowing - Google Patents

Abstract

The invention discloses a seed metering device for precision sowing in rice breeding plots, which comprises a seed metering housing (1), a seed box tray (8) is arranged above the seed metering housing (1), and the seed metering housing (1) The bottom is provided with an air suction housing (2); as shown in Figure 4, the lower end surface of the seed discharge housing (1) is provided with a filling chamber (12), a delivery cavity (13), and a delivery cavity (13) ) is communicated with the seed filling chamber (12), the delivery cavity (13) is provided with a seed injection port (15) below, and the seed filling chamber (12) is also provided with a seed unloading plate (16) below; as shown in Figure 3, the A grooved slideway (10) and a seed inlet (11) are provided on the upper end surface of the seed metering housing (1), and the top end of the grooved slideway (10) is configured as a convex structure. The present invention can realize the quick replacement of different kinds of materials through the seed filling method of the air-suction metering device, can realize the clearing of seeds, and can realize single-grain precision sowing at the same time, which improves the operation efficiency of plot breeding and sowing.

Description

A seed metering device for precision seeding in rice breeding plots

technical field

The invention relates to the design field of sowing machinery, in particular to a seed metering device for precision sowing in rice breeding plots.

Background technique

Rice is one of the main food crops in my country. In the process of cultivating new rice varieties, a large number of field breeding test plots are often required, and the sowing operation is the most important link in the entire breeding test process.

The plot precision seeder is a special agricultural equipment used in cultivating new varieties, breeding improved varieties and conducting field tests of varieties. It can greatly reduce labor intensity, improve field operation efficiency of rice breeding, improve sowing performance, and reduce experimental errors caused by manual sowing.

The sowing method of the field test generally adopts manual sowing or artificial transplanting, which is time-consuming and laborious. Therefore, the design invention has good practical application value in the precision sowing of rice breeding plots.

Contents of the invention

The object of the present invention is to overcome the deficiencies of the prior art and provide a seed metering device for precision sowing in rice breeding plots with high sowing precision, easy seed carrying, easy replanting and high stability.

The technical solution adopted in the present invention: a seed metering device for precision sowing in rice breeding plots, comprising a seed metering housing (1), a seed box tray (8) is arranged above the seed metering housing (1), the An air-suction housing (2) is provided below the seed-discharging housing (1); the lower end surface of the seed-discharging housing (1) is provided with a seed-filling chamber (12), a conveying cavity (13), and the conveying cavity (13 ) is communicated with the seed filling chamber (12), the delivery cavity (13) is provided with a seed injection port (15), and the seed filling chamber (12) is also provided with a seed unloading plate (16) below; the seed discharge shell The upper end surface of the body (1) is provided with a grooved slideway (10) and a seed inlet (11), and the top of the grooved slideway (10) is configured as a convex structure; There are air suction chambers (14), positive pressure ports (18) and negative pressure ports (19); the seed box tray (8) is provided with several seed box inlets, and the lower end of the seed box inlets is provided with a seed box door (7), the lower end of the seed box door is provided with a protrusion (17), and the protrusion (17) is placed in the groove slideway (10), and can be placed on the groove slideway (10) ) to slide inside.

Preferably, a seed suction plate (4) is provided between the seed metering housing (1) and the air suction housing (2), and the seed suction plate (4) has a seed suction hole (20).

Preferably, it also includes a seeding shaft (5), a seeding shaft (6) and a flange (3); the seeding shaft (5) passes through the air suction housing (2), the flange (3) in sequence ), the seed suction disc (4), and the seed discharge housing (1), which drive the flange (3) and the seed suction disc (4) to rotate synchronously, and are driven by a motor, thereby completing the seed suction and seed discharge process.

Preferably, the seed suction tray (4) is installed on the flange (3), and the flange (3) is installed on the seed metering housing (1) and the air suction housing (2) between.

Preferably, a seed box (9) is provided on the entrance of the seed box.

Preferably, the seed changing shaft (6) is controlled and connected by a motor, and the seed changing shaft (6) drives the seed box disc (8) to rotate.

Preferably, a baffle (21) is provided inside the seed metering housing (1).

Compared with the prior art, the beneficial effects of the present invention are: the present invention adopts the seed filling method of the air-suction seed meter, adopts the design of the seed box carrying method, and the design of the groove slideway, which can realize the different varieties of materials. Rapid seed change; the design of the seed filling chamber and the seed unloading plate can realize the clearing of seeds, and at the same time realize single-grain precision sowing, which improves the operation efficiency of plot breeding and sowing. The present invention adopts the seed-carrying mode design of the seed box 8 and the design of the groove slideway through the seed-filling method of the air-suction seed metering device, and can realize rapid seed change of different varieties of materials; adopts the design of the seed-filling chamber and the seed-unloading plate , It can realize clearing of seeds, and at the same time, it can realize single-grain precision sowing, which improves the operation efficiency of plot breeding and sowing.

Description of drawings

Fig. 1 is a perspective view of the present invention;

Fig. 2 is an exploded view of the present invention;

Fig. 3 is the front view of the seeding housing of the present invention;

Fig. 4 is the rear view of the seeding housing of the present invention;

Fig. 5 is a structural diagram of the air suction housing of the present invention;

Fig. 6 is the structural diagram of the kind box door of the present invention;

Fig. 7 is a structural diagram of the seed box tray of the present invention.

In the figure: 1-seeding housing, 2-air suction housing, 3-flange, 4-suction plate, 5-seeding shaft, 6-seeding shaft, 7-seeding box door, 8-seeding box Plate, 9-seed box, 10-groove slide, 11-seed inlet, 12-seed filling chamber, 13-transporting cavity, 14-air suction cavity, 15-seeding opening, 16-seeding plate , 17-protrusion, 18-positive pressure port, 19-negative pressure port, 20-suction hole, 21-baffle plate.

Detailed ways

The technical solutions of the present invention will be further described below in conjunction with specific embodiments.

As shown in Figure 1-7, a seed metering device for precision sowing in rice breeding plots includes a seed metering housing (1), and a seed box tray (8) is arranged above the seed metering housing (1). An air-suction housing (2) is provided below the seed-discharging housing (1); The cavity (13) is in communication with the seed filling chamber (12), the delivery cavity (13) is provided with a seed injection port (15), and the seed filling chamber (12) is also provided with a seed unloading plate (16); as Fig. 3, the upper end surface of the metering housing (1) is provided with a grooved slideway (10) and a seed inlet (11), and the top of the grooved slideway (10) is configured as a convex structure; as shown in Figure 5 , the air suction housing (2) is provided with an air suction chamber (14), a positive pressure port (18) and a negative pressure port (19); , the lower end of the seed box entrance is provided with a seed box door (7), as shown in Figure 6, the lower end of the seed box door is provided with a protrusion (17), and the protrusion (17) is placed on the groove slideway (10), and can slide in the groove slideway (10).

In the specific technical solution of the present invention, a seed suction plate (4) is provided between the seed metering housing (1) and the air suction housing (2), and there is a suction plate (4) on the seed suction plate (4). Seed holes (20). It also includes a seeding shaft (5), a seeding shaft (6) and a flange (3); the seeding shaft (5) passes through the air suction housing (2), flange (3), suction The seed disc (4) and the seed-discharging housing (1) drive the flange (3) and the seed-suction disc (4) to rotate synchronously, and are driven by a motor to complete the seed-absorbing and seed-discharging process.

In the specific technical solution of the present invention, the seed suction tray (4) is installed on the flange (3), and the flange (3) is installed on the seed discharge housing (1) and the air Between the suction shells (2), the seed box entrance is provided with a seed box (9), which moves with the rotation of the seed box plate (8), and can realize small seeding due to the action of the groove slideway (10). Automatically turns on and off during seeding and installation. The seed change shaft (6) is controlled and connected by a motor, and the seed change shaft (6) drives the seed box disc (8) to rotate, and a baffle (21) is provided inside the seed discharge housing (1).

When the present invention is used specifically, the seeds are stored in the seed box (9), and the seed box (9) is installed on the seed box disc (8). The seed box (9) where the seeds sown are located moves to the seed inlet (11), and the seed box door (7) is opened under the joint action of the groove slideway (10) and the protrusion (17), and the seeds are fed into the The seed port (11) enters the seed discharge housing (1), and under the blocking of the baffle (21), all the seeds enter the seed filling chamber (12), gather in the seed filling chamber (12), and then are driven by the motor The seeding shaft (5) rotates, the seeding shaft (5) passes through the flange (3), and is fixed with the flange (3), drives the flange (3) to rotate, and then drives the Seed sucker (4) rotates, and seed sucker hole (20) is arranged on the seed sucker (4), under the effect of negative pressure, seed is adsorbed on the seed sucker hole (20), along with the seed sucker (4) Due to the effect of the air suction cavity (14), the negative pressure can always act on the seeds to the top of the seeding port. When the seeds are rotated to the top of the seeding port (15) through the delivery cavity (13), Due to the positive pressure, the seeds are blown down and fall into the field from the seeding port.

The technical solution of the present invention is further described below:

The groove slideway (10) is inside the seeding housing (1), and there is a protrusion (17) on the seed box door (7), which can move in the groove slideway (10), and the groove slideway (10) The top is convex, and when the seed box 9 moves to the top of the seeding housing (1), that is, the convex position of the groove slideway (10), the seed box door 7 is controlled by the groove slideway (10) Automatically open, the seeds in the seed box 9 will slide down into the seed filling chamber (12) for filling; the seed box tray (8) is installed on the outside of the seed housing (1) and can be controlled by a motor to change seeds Axle (6) rotates, and changing kind of axle (6) drives seed box dish (8) to rotate. By the grooved slideway (10) and the seed box disc (8), the automatic seed changing function can be realized.

Seed unloading plate (16) is equipped with in the bottom of described seed discharge housing (1), can be controlled by motor, and all seeds are discharged. Automatic seeding function can be realized. Described kind box dish (8), unloading kind plate (16) are all driven by motor, can realize automatic changing and unloading kind. When the seeds enter the seed filling chamber (12) from the seed inlet (11), there is a baffle (21) inside the seed discharge housing (1) to block all the seeds into the seed filling chamber. When working, the motor drives the seed changing shaft (6) to rotate, and the seed changing shaft (6) drives the seed box disc (8) to rotate, so that the seed box (9) that needs to be seeded moves to the top of the seed meter. The effect of the convex shape on the top of the road (10), the seed box door (7) is opened, and the seeds enter the seed filling chamber (12) from the seed inlet (11).

When working, the seed sucker (4) rotates with the seeding shaft (5), and under the negative pressure of the air suction cavity (14), the seeds are adsorbed to the seed sucker hole (20), and are released along with the seed sucker ( 4) Turn together to ensure that there will be no mixing of seeds. When turning to the end of the delivery cavity (13), that is, when it is directly above the seed injection port (15), the seeds will be blown off due to the positive pressure, and the seeds will fall freely. , fell into the field.

After a seed box 9 sortings finished, unloading seed plate (16) was opened, and the seeds in the filling chamber (12) were all discharged outside the machine, and finished clearing the seeds. Do the cycle work like this. The present invention utilizes the advantages of the air-suction seed metering device to absorb seeds with high precision, and utilizes structures such as groove slides (10), seed boxes 9, and seed box trays (8) to realize rapid seed change, and is suitable for community breeding sowing requirements.

In the seed metering device of the present invention, the seed metering housing (1) and the air suction housing (2) are connected by bolts, and the two housings are matched and connected with each other and fastened by bolts. The function of the seed-discharging housing (1) is that the seeds fall into the seed-discharging housing (1), and the seeds are discharged out of the seed-discharging housing (1) due to the action of the seed suction plate (4) in the seed-discharging housing (1) Outside the body (1); one side of the seed metering housing (1) is also provided with a grooved slideway (4), and the top of the grooved slideway (10) is configured as a convex structure, and the grooved slideway (4) The function is to control the opening and closing of the seed box door (7), specifically, the lower end of the seed box door (7) is provided with a protrusion (17), and the protrusion (17) is placed on the groove slide (10 ), and can slide in the groove slideway (10), when the protrusion (17) at the lower end of the seed box door (7) slides to the top convex structure of the concave slideway (10), because the groove The distance between the slideway (10) and the seed inlet (11) is greater than the length of the seed box door (7), so the seed box door (7) is in an open state, so that the seeds fall into the seed inlet (11 ), and then the seeds enter the seed housing (1) through the seed inlet, while at other positions of the groove slide (10), the seed box door (7) is in a closed state.

There are two air holes on the outside of the air suction housing (2), one is connected to the positive pressure tube and the other is connected to the negative pressure tube. During operation, due to the effect of negative pressure, the seeds are adsorbed to the seed suction plate (4) and follow the suction. When the disc (4) moves to the position of the positive pressure hole, the seeds are blown off due to the positive pressure, free fall, and discharged out of the seed meter.

The seed suction disc (4) is enclosed within on the flange (3), and the two are installed between the seed discharge housing (1) and the air suction housing (2), and the effect is to suck the seeds and drive the seeds to move. The seed-discharging shaft (5) passes through the air-suction housing (2), flange (3), seed-suction disc (4), and seed-discharging housing (1), and its rotation drives the seed box disc (8) and the seed-suction disc (4) rotation; the seed changing shaft (6) passes through the seeding housing (1), the flange (3), and the seed box disc (8), and its rotation drives the rotation of the seed box disc (8) to complete the seeding The process of the case plate (8); the seeding shaft (5) and the seed changing shaft (6) cannot rotate at the same time, and are fixed by bearings between the two, so the seeding case plate (8) and the seeding housing (1) are It is connected together by changing the kind of shaft (6), but the two housings can not move simultaneously, so there is still a little gap between the two parts to allow the kind of box disc (8) to rotate. There are 8 seed inlets on the outside of the seed box tray (8), allowing the seed box to be directly inserted in, and the seed box can be pulled out directly after being used up, and the effect is exactly to be convenient for planting.

For those skilled in the art, various other corresponding changes and modifications can be made according to the technical solutions and ideas described above, and all these changes and modifications should fall within the protection scope of the claims of the present invention.

Claims (7)

1. a kind of feed mechanism for seed of rice breeding cell precise sowing, it is characterised in that:Including seed sowing shell (1), the seeding shell It is equipped with plants case disk (8) above body (1), aspiration shell (2) is equipped with below the seed sowing shell (1);Seed sowing shell (1) lower end Face is equipped with seed feeding chamber (12), conveying cavity (13), conveying cavity (13) and seed feeding chamber (12) unicom, is set below conveying cavity (13) It charges seed mouth (15), is additionally provided with below the seed feeding chamber (12) and unloads kind of a plate (16);Seed sowing shell (1) upper surface is equipped with groove Slideway (10) and seed inlet (11), groove slideway (10) top are set as convex shape;The aspiration shell (2) is equipped with Aspiration cavity (14), positive pressure mouth (18) and negative pressure mouth (19);The plants case disk (8) is equipped with several tank inlet, the plants case The lower end of entrance is equipped with kind of a chamber door (7), and described kind of chamber door (7) lower end is equipped with raised (17), and the protrusion (17) is positioned over described In groove slideway (10), and can the sliding in the groove slideway (10).

2. a kind of feed mechanism for seed of rice breeding cell precise sowing according to claim 1, it is characterised in that:The seeding It is equipped with seeds sucker (4) between shell (1) and the aspiration shell (2), has suction hole (20) on the seeds sucker (4).

3. a kind of feed mechanism for seed of rice breeding cell precise sowing according to claim 1, it is characterised in that:Further include row Kind axis (5) changes kind of an axis (6) and flange (3);The feed shaft (5) sequentially passes through the aspiration shell (2), flange (3), inhales kind Disk (4), seed sowing shell (1);The feed shaft (5) moves flange (3) by motor driven belts, seeds sucker (4) rotates synchronously, to complete At suction kind and seeding process.

4. a kind of feed mechanism for seed of rice breeding cell precise sowing according to claim 4, it is characterised in that:The suction kind Disk (4) is mounted on the flange (3), the flange (3) be mounted on the seed sowing shell (1) and the aspiration shell (2) it Between.

5. a kind of feed mechanism for seed of rice breeding cell precise sowing according to claim 1, it is characterised in that:The plants case Entrance is equipped with seed box (9).

6. a kind of feed mechanism for seed of rice breeding cell precise sowing according to claim 3, it is characterised in that:It is described to change kind Axis (6) is controlled by motor and is connected, and kind of the axis (6) that changes drives plants case disk (8) rotation.

7. a kind of feed mechanism for seed of rice breeding cell precise sowing according to claim 1, it is characterised in that:The seeding Shell (1) is internally provided with baffle (21).