Anti-blocking seed sowing device

Abstract

The utility model relates to an anti-blocking seed-metering device and belongs to the technical field of agricultural seeding. Comprising a rack and a seed-metering cylinder, a hopper is arranged at the top of the rack, a cover plate is hinged to an end opening of the hopper, a plurality of material cups are arranged below the hopper, the seed-metering cylinder is movably arranged on the rack below the material cups through a driving motor and a positioning sleeve, a plurality of mounting holes are annularly formed in the circumference of the position, corresponding to the material cups, of the seed-metering cylinder, and rubber grooves are formed in the mounting holes; a fixed rod is inserted into the seed metering cylinder, one end of the fixed rod is fixedly connected with the rack, a compression roller is movably sleeved on the fixed rod, the compression roller can push the rubber groove to deform so that seeds in the rubber groove are ejected out, a reset assembly is movably arranged on the rack on one side of the seed metering cylinder through a short shaft, and the reset assembly can restore the deformed rubber groove. According to the seed-metering device, seed blockage in the groove of the seed-metering wheel is effectively avoided, and the problem that the seed-metering wheel cannot realize smooth seed metering is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of anti-clogging seed metering device, belong to agricultural seeding technical field. BACKGROUND

[0002] Seeding work is the basic link in the process of agricultural production, and good seeding quality determines the premise of agricultural yield increase. Currently, mechanical seeding is mainly used for seeding operation, which has many advantages such as saving seeds, saving time, high yield, etc.

[0003] The existing mechanical seeding mainly uses an outer-groove wheel type seed metering device. Its working principle is that the seeds stored in the seed box enter the seed metering cup through the bottom hole of the seed box by gravity. The seeds entering the seed metering cup will fall into the groove of the seed metering wheel. When the seed metering shaft drives the seed metering wheel to rotate, the seeds filled into the groove of the seed metering wheel will rotate with the seed metering wheel and be discharged from the groove by gravity. The seeds reach the seedbed through the seed delivery pipe. The seeds not filled into the groove of the seed metering wheel remain in the seed metering cup by the seed scraping device. Although the groove of the seed metering wheel can realize the seed metering, when the seeds with small diameters are metered, the seeds with small diameters are easily accumulated and jammed in the groove of the seed metering wheel, which causes the seeds to be jammed in the groove and cannot be smoothly metered. At the same time, the jammed groove also affects the normal metering of the seeds in the seed box. Therefore, it is necessary to improve it. SUMMARY

[0004] The utility model aims at providing a kind of anti-clogging seed metering device, which can effectively prevent the seeds from being jammed in the groove of the seed metering wheel and avoid the groove of the seed metering wheel from being unable to smoothly meter the seeds.

[0005] The technical solution of the utility model is as follows:

[0006] A kind of anti-clogging seed metering device, comprising a rack and a seed metering cylinder, characterized by: a hopper is mounted on the top of the rack, a cover plate is hinged to the port of the hopper, a plurality of material cups are arranged below the hopper, a seed metering cylinder is movably installed on the rack below the material cups by a driving motor and a positioning sleeve, a plurality of mounting holes are annularly arranged on the circumference of the corresponding position of the seed metering cylinder and the material cup, a rubber groove is mounted in the mounting hole, a fixed rod is inserted into the seed metering cylinder, one end of the fixed rod is fixedly connected with the rack, and a press roller is movably sleeved on the fixed rod. The press roller can push and extrude the rubber groove to deform the rubber groove and make the seeds inside the rubber groove be pushed out. A reset assembly is movably installed on the rack on one side of the seed metering cylinder through a short shaft. The reset assembly can restore the deformed rubber groove.

[0007] The driving motor is fixedly installed on the rack through a motor mounting seat. The transmission shaft of the driving motor is fixedly connected with the end of one end of the seed metering cylinder.

[0008] The rack on one side below the seed metering cylinder is obliquely provided with a seed guide pipe.

[0009] The seed discharge cylinder is a hollow cylinder with one end open, the open end of the seed discharge cylinder is movably connected with the positioning sleeve through a bearing, and the other end of the seed discharge cylinder is an open end connected with the driving motor.

[0010] The reset assembly comprises a mounting shaft, a reset roller and a reset head, the mounting shaft is movably mounted at both ends on the rack, and the mounting shaft is provided with the reset roller at a corresponding position of the seed discharge cylinder.

[0011] The reset roller is a cylindrical body, the reset head is annularly and uniformly arranged on the circumference of the reset roller at a corresponding position of the rubber groove, the reset head is a round head column, and the round head end of the reset head can extend into the rubber groove.

[0012] The positioning sleeve is in the shape of a ring, a sliding groove is arranged on the end face of one end of the positioning sleeve, and the sliding groove is slidably connected with the open port of the seed discharge cylinder through a bearing.

[0013] The beneficial effects of the utility model compared with the prior art are as follows:

[0014] The anti-blocking seed discharger is driven to rotate by the driving motor, and the seed discharge cylinder is synchronously rotated, when the seed discharge cylinder rotates, the rape seeds in the material cup are forced to rotate around the seed discharge roller through the rubber groove, the excess rape seeds on the rubber groove are scraped by the seed scraping brush, the number of seeds in the rubber groove is fixed, and after the seeds in the rubber groove rotate to the corresponding position of the seed guide pipe, the seeds fall into the seed guide pipe under the action of their own gravity and are discharged to the seedbed, so that the seed discharge operation is realized, and the rubber groove is deformed and pushed by the compression roller when the rubber groove rolls to the compression roller, so that the rape seeds in the rubber groove are pushed out, thereby avoiding the problem that the rape seeds in the rubber groove are blocked, and the deformed rubber groove is restored by the reset head when the rubber groove rolls to the reset head, so that the problem that the seeds are jammed in the groove of the seed discharge wheel is effectively avoided, and the problem that the seed discharge wheel cannot smoothly discharge seeds is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view structural schematic diagram of the utility model;

[0016] Figure 2 It is Figure 1 It is a sectional view structural schematic diagram of the utility model in A-A direction;

[0017] Figure 3 It is a three-dimensional structural schematic diagram of the seed discharge cylinder in the utility model;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the positioning sleeve in the utility model.

[0019] In the figure: 1, frame; 2, seed tube; 3, hopper; 4, cover plate; 5, cup; 6, seed brush; 7, drive motor; 8, positioning sleeve; 9, sliding slot; 10, fixed rod; 11, transmission shaft; 12, rubber groove; 13, mounting shaft; 14, reset roller; 15, reset head; 16, seed guide tube; 17, pressure roller. DETAILED DESCRIPTION

[0020] As shown in the accompanying drawings Figures 1-4

[0021] The anti-blocking seed metering device comprises a frame 1 and a seed tube 2, and the frame 1 is fixedly provided with a hopper 3 at the top, and the hopper 3 is hingedly provided with a cover plate 4 at the port, and the cover plate 4 can cover the port of the hopper 3 to effectively prevent the seeds from being exposed and prevent dust from entering the hopper 3.

[0022] A plurality of cups 5 are arranged side by side below the hopper 3, and the cup 5 is in the shape of a large upper and small lower bucket, and the cup 5 is used to guide the seeds into the inside of the rubber groove 12 of the seed tube 2, and the cup 5 can also temporarily store the seeds to be metered, and the cup 5 is provided with a seed brush 6, and the seed brush 6 brushes the excess seeds on the rubber groove 12 to ensure that the number of seeds in the rubber groove 12 is fixed.

[0023] The seed tube 2 is movably mounted on the frame 1 below the cup 5 through a drive motor 7 and a positioning sleeve 8, the seed tube 2 is a hollow cylindrical body with an open end, the drive motor 7 is fixedly mounted on the frame 1 through a motor mounting seat, the positioning sleeve 8 is a circular ring, and the positioning sleeve 8 is fixedly mounted on the frame 1, and a circular sliding slot 9 is arranged on one end face of the positioning sleeve 8, the sliding slot 9 is slidably connected with the open end of the seed tube 2 through bearings, and the transmission shaft 11 of the drive motor 7 is fixedly connected with the right end of the seed tube 2, and in use, the transmission shaft 11 of the drive motor 7 can drive the seed tube 2 to rotate in the sliding slot 9 of the positioning sleeve 8.

[0024] A plurality of mounting holes are annularly arranged on the circumference of the seed tube 2 corresponding to the cup 5, and a rubber groove 12 is fixedly mounted in the mounting hole, the rubber groove 12 is in the shape of a waist circle, a fixed rod 10 is sleeved in the seed tube 2, one end of the fixed rod 10 is fixedly connected with the frame 1, and the other end of the fixed rod 10 is suspended in the seed tube 2, a pressure roller 17 is movably sleeved on the fixed rod 10 extending into the seed tube 2, and the pressure roller 17 is in the shape of a cylinder, and in operation, the pressure roller 17 can push the rubber groove 12 to deform outwardly, and thus the seeds jammed in the rubber groove 12 are pushed out.

[0025] ​The frame 1 on one side of the seed tube 2 is movably mounted with a reset assembly, the reset assembly comprises a mounting shaft 13, a reset roller 14 and a reset head 15, the two ends of the mounting shaft 13 are movably mounted on the frame 1, the reset roller 14 is fixedly mounted on the circumference of the mounting shaft 13 corresponding to the seed tube 2, the reset roller 14 is a cylinder, the reset head 15 is uniformly arranged in a ring shape on the circumference of the reset roller 14 corresponding to the rubber groove 12, the reset head 15 is a round head column, one end of the reset head 15 can extend into the rubber groove 12, the reset head 15 of the reset assembly can restore the deformed rubber groove 12, the mounting shaft 13 is connected between the transmission shaft 11 of the driving motor 7 through the driving gear and the driven gear, during operation, the transmission shaft 11 of the driving motor 7 can drive the mounting shaft 13 to rotate through the cooperation of the driving gear and the driven gear, the rotating directions of the transmission shaft 11 of the driving motor 7 and the mounting shaft 13 are opposite, which can ensure that the reset head 15 is smoothly inserted into the rubber groove 12 to restore the deformed rubber groove 12.

[0026] The frame 1 on one side below the seed tube 2 is obliquely mounted with a seed guide pipe 16, during operation, the seed guide pipe 16 can further guide the seeds to fall smoothly to the seedbed.

[0027] When the anti-blocking seed metering device is used, the operator will fixedly install the seed metering device on the rotary cultivator, taking rapeseed as an example, the diameter of the rapeseed is small, the operator will put the appropriate rapeseed into the hopper 3, the tractor drives the rotary cultivator and the seed metering device to move forward, in the process of moving, the operator will start the driving motor 7, the driving motor 7 rotates to drive the seed tube 2 to rotate synchronously, when the seed tube 2 rotates clockwise, the rubber groove 12 forcibly drives the rapeseed in the material cup 5 to rotate around the seed roller, the seed scraping brush 6 scrapes the rapeseed on the rubber groove 12 to ensure that the number of rapeseed in the rubber groove 12 is fixed, after the rapeseed in the rubber groove 12 rotates to the position corresponding to the seed guide pipe 16, the rapeseed falls into the seed guide pipe 16 under the action of its own gravity and is discharged to the seedbed, thereby realizing the seed metering operation of the rapeseed.

[0028] During the seed metering process of the seed metering device, when the rubber groove 12 rolls to the compression roller 17, the compression roller 17 can push and extrude the rubber groove 12 to deform, so that the rapeseed in the rubber groove 12 is pushed out, thereby avoiding the problem of rapeseed blocking in the rubber groove 12, when the rubber groove 12 rolls to the reset head 15, because the rotating directions of the transmission shaft 11 of the driving motor 7 and the mounting shaft 13 are opposite, the mounting shaft 13 rotates counterclockwise, the reset head 15 can be inserted into the rubber groove 12, the reset head 15 can restore the everted and deformed rubber groove 12, that is, the rubber groove 12 can again accommodate the rapeseed to perform the seed metering operation, the seed metering device effectively avoids the problem of rapeseed jamming in the groove of the seed metering wheel and avoids the problem that the seed metering wheel cannot smoothly meter the seeds.

Claims

1. A clog-resistant seed meter comprising a frame (1) and a seed metering tube (2), characterized in that: The rack (1) top is equipped with hopper (3), the hopper (3) port is hinged with cover plate (4), the hopper (3) below is provided with multiple material cups (5), the rack (1) below the material cup (5) is movably installed with seed tube (2) through drive motor (7) and positioning sleeve (8), the seed tube (2) is annularly provided with multiple mounting holes on the corresponding position circumference, the mounting hole is provided with rubber groove (12), the seed tube (2) is inserted with fixed rod (10), one end of the fixed rod (10) is fixedly connected with the rack (1), the fixed rod (10) is movably sleeved with pressure roller (17), the pressure roller (17) can push and extrude the rubber groove (12) deformation to make the seed in the rubber groove (12) be pushed out, the rack (1) on one side of the seed tube (2) is movably installed with reset assembly through short shaft, the reset assembly can restore the deformed rubber groove (12).

2. A non-clogging seed meter according to claim 1 wherein: The drive motor (7) is fixedly installed on the rack (1) through the motor mounting seat, and the transmission shaft (11) of the drive motor (7) is fixedly connected with one end of the seed tube (2).

3. A non-clogging seed meter according to claim 1 wherein: The rack (1) on one side below the seed tube (2) is obliquely provided with seed guide pipe (16).

4. The anti-clogging seed meter of claim 1, wherein: The seed tube (2) is a hollow cylindrical body with one end opening, the opening end of the seed tube (2) is movably connected with the positioning sleeve (8) through bearings, and the other end of the seed tube (2) is an open end connected with the drive motor (7).

5. The anti-clogging seed meter of claim 1, wherein: The reset assembly comprises a mounting shaft (13), a reset roller (14) and a reset head (15), the mounting shaft (13) is movably installed on the rack (1), and the mounting shaft (13) is provided with the reset roller (14) at the corresponding position of the seed tube (2).

6. A non-clogging seed meter according to claim 5 wherein: The reset roller (14) is a cylindrical body, and the reset head (15) is annularly and uniformly arranged on the corresponding position of the rubber groove (12) on the circumference of the reset roller (14), the reset head (15) is a round head cylindrical body, and the round head end of the reset head (15) can extend into the rubber groove (12).

7. A non-clogging seed meter according to claim 1 wherein: The positioning sleeve (8) is a circular ring, the positioning sleeve (8) is provided with a sliding groove (9) on one end face, and the sliding groove (9) is movably connected with the opening port of the seed tube (2) through bearings.

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