CN108156900A - Single-deck duplicate rows feed mechanism for seed - Google Patents

Abstract

The invention discloses a single-disk double-row seed metering device, aiming to provide a single-disc double-row seed metering device with more accurate seed metering and more stable seed metering performance. The seed sorting box is arranged at the bottom of the housing, and the upper opening of the seed sorting box body is inclined downward relative to the direction of the seeding disc. A sorting tongue is arranged on the vertical center surface in the length direction of the rectangular body, and the sorting tongue extends upward to the horizontal centerline of the seeding tray, parallel to the sorting tongue, and a seed blocking is set on the short side of the seed sorting box body plate, the seed baffle plate extends upwards through the circumference of the seed suction hole in the inner ring, the side of the seed baffle plate is in contact with the seed suction surface of the seed metering plate, the seed cleaner is arranged above the horizontal centerline of the seed metering plate, and It is on one side of the upward rotation direction of the seeding disc. The present invention is applicable to the supporting use of the double-row seeder on the ridge.

Description

Single disc double row seed meter

technical field

The invention relates to a seed metering device for a seeder, in particular to a single-disk double-row seed metering device.

Background technique

The performance of the seeder of the traditional pneumatic row crop seeder can meet the high-speed single-row sowing on the ridge. In order to realize the double-row sowing on the soybean and corn ridges, the production enterprises have carried out the seeder of the existing pneumatic seeder. Technical improvement, some technical solutions are to directly use the existing single-row seeding tray, that is, a circle of seed suction holes is arranged on the seeding tray along the circumferential direction, and then the discharged seeds are forced to The shunt drops seeds according to two channels, thereby realizing two-row sowing. In order to ensure that each seed suction hole only sucks one seed, a plate-type seed clearing knife is mounted on the seed metering plate, which can only realize one-sided seed clearing of a circle of seed suction holes, so the problem with this technical solution is that the seed separation is not accurate. Accurate, seed cleaning is not thorough enough, resulting in missed sowing and reseeding; there is also a technical solution to set two rings of seed suction holes along the circumferential direction on the seed metering plate, and the two rings of seed suction holes correspond to a seed drop tube respectively. It can solve the problem of seed separation, but still use the plate type seed clearing knife to complete the seed clearing scheme of two circles of suction holes, which also makes the seed clearing not thorough enough. There are still missing and reseeding phenomena, and there are problems with the stability of seeding performance, which directly affect the operation quality of the seeder.

Contents of the invention

The object of the present invention is to solve the above problems and provide a single-disk double-row seed meter with more accurate seed metering and more stable seed metering performance.

In order to achieve the above object, the present invention adopts the following technical solutions: the single-disc double-row seed metering device of the present invention includes a housing, a seeding disc rotatably mounted on the housing, and a cleaning device arranged on the housing. The seed device also includes a sorting box, which is arranged at the bottom of the housing, and the side of the sorting box is in contact with the seed suction surface of the seed metering tray. The horizontal projection of the seed sorting box body is rectangular, and the seed sorting box body The upper opening is inclined downward relative to the direction of the seeding tray, and the center plane of the seed sorting box is perpendicular to the length direction of the rectangular body, and the symmetrical centerline of the vertical tangent to the circular line of the two circles of seed suction holes set on the seeding tray. On the same plane, two sorting tubes are connected in parallel at the lower opening of the sorting box body, and a sorting tongue is set on the vertical center plane of the sorting box along the length direction of the rectangular body, and the sorting tongue extends upwards to the At the centerline of the horizontal center line of the seeding plate, and the side of the seeding tongue is attached to the seed-suction surface of the seeding plate and the two circles of seed-suction holes are separated in the vertical direction, parallel to the seeding tongue, the seeding A seed blocking plate is arranged on the short side of the box body, and the seed blocking plate extends upwards through the circumference line of the seed suction hole of the inner ring. Above the horizontal centerline of the seed disk, and on one side of the upward rotation direction of the seed disk.

As a preferred solution of the present invention, the seed clearing device is composed of a handle, a seed clearing claw, a compression spring, and a positioning body. The seed clearing claw is in the shape of a cylinder, and three of the seed clearing claws slide in parallel in a row at equal intervals along the axial direction. Inserted on the end surface of the positioning body, the inner end of the seed clearing claw is provided with a compression spring along the axial direction, and the outer end of the seed clearing claw protrudes from the positioning body and presses against the seed suction surface of the seed metering disc vertically in the axial direction. The middle one of the three seed-clearing claws is in the middle of the two rings of the seed-suction holes, and the left and right two seed-clearing claws are respectively located inside the inner circle of the seed-suction holes and outside the outer circle of the seed-suction holes. A positioning shaft is arranged on the end surface of the positioning body and parallel to the three seed-clearing claws, the positioning body is hinged with a hinge seat arranged on the housing through the positioning shaft, and a handle is arranged at the outer end of the positioning shaft.

After adopting the above technical scheme, the beneficial effects of the single-disk double-row seed meter provided by the present invention are:

The seed sorting box of the present invention is provided with a sorting tongue and a seed blocking plate, and the lower opening of the seed sorting box body is connected in parallel with two sorting pipes. At the same time, the seeds adsorbed on the two rings of seed suction holes are out of the vacuum, and the seed splitting tongue shunts the seeds adsorbed on the outer ring of seed suction holes into a corresponding seed separation tube, and the seed blocking plate absorbs the seeds on the inner ring of seed suction holes. The seeds are diverted to the corresponding another seeding tube. Compared with the forced seeding of the single-circle seed suction hole of the existing seed metering plate, the seeds of the two-circle seed suction hole are completely diverted and accurate double-row seeding is realized after the seeds are out of the vacuum; Among the three clearing claws of the seed clearing device, the middle one is in the middle of the two circles of seed suction holes, and the left and right two seed clearing claws are respectively located inside the inner circle of the seed suction holes and around the outer circle of the seed suction holes. In this way, the two circles of seed suction holes are cleared on both sides at the same time, ensuring that each seed suction hole only absorbs one seed, which effectively solves the problem of missed sowing and reseeding. Therefore, the effect of more accurate seed arrangement and more stable seed arrangement performance is obtained.

Description of drawings

Fig. 1 is the front view of the structure of the single-disk double-row seed metering device of the present invention;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is a three-dimensional schematic diagram of a single-disk double-row seed metering device of the present invention;

Fig. 4 is another three-dimensional schematic diagram of the single-disk double-row seed metering device of the present invention;

Fig. 5 is the front view of the structure of the seed cleaner of the present invention;

Fig. 6 is a side view of Fig. 5;

Fig. 7 is a three-dimensional perspective view of the seed cleaner of the present invention.

In the figure: shell 1; seed disc 2; seed clearer 3; seed sorting box 4; sorting tongue 5; seed retaining plate 6; hinge support 7; handle 8; sorting tube 9; ; Compression spring 11; Positioning body 12.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a schematic diagram of the specific embodiment of the single-disk double-row seed meter of the present invention is given, including a housing 1 and a row mounted on the housing 1 rotatably. The seed tray 2, and the seed cleaner 3 arranged on the housing 1, also includes a sorting box 4, which is arranged on the bottom of the housing 1, and the side of the sorting box 4 is connected to the seed tray 2 The seed suction surface is close to each other, and the horizontal projection of the seed sorting box 4 body is a rectangle. The center line of symmetry of the two circles of seed suction holes set on the seeding disc 2 is in the same plane as the vertical tangent of the circumferential line of the downward rotation direction. The seed box 4 is provided with a sorting tongue plate 5 along the vertical center surface of the length direction of its rectangular body, and the sorting tongue plate 5 extends upwards to the horizontal center line of the seeding tray 2, and the side edges of the sorting tongue plate 5 and the The seed-suction surface of the seed-discharging tray 2 sticks to each other and separates the two circles of seed-suction holes in the vertical direction, parallel to the sorting tongue plate 5, and a seed-blocking plate 6 is set on the short side of the seed-sorting box 4 body, and the seed-blocking plate 6 extends upwards through the circumferential line of the seed suction hole in the inner ring, and the side of the seed shielding plate 6 is in contact with the seed suction surface of the seed metering tray 2, and the seed cleaner 3 is arranged above the horizontal center line of the seed metering tray 2 and placed On one side of the upward rotation direction of the seed disk 2 .

As a preferred embodiment of the present invention, as shown in Fig. 5, Fig. 6 and Fig. 7, the seed clearing device 3 is composed of a handle 8, a seed clearing claw 10, a compression spring 11, and a positioning body 12, and the seed clearing claw 10 is Cylindrical shape, three of the clearing claws 10 are inserted in the inner end surface of the positioning body 12 in a parallel row at equal intervals, and the inner end of the clearing claws 10 is provided with a compression spring 11 in the axial direction. The outer end of 10 protrudes from the positioning body 12 and presses vertically on the seed-suction surface of the seed-discharging disc 2 along the axial direction. The two seed-clearing claws 10 are respectively located on the inside of the circumference of the seed-suction hole of the inner ring and outside the circumference of the seed-suction hole of the outer ring, and a positioning shaft is arranged on the outer end surface of the positioning body 12 parallel to the three seed-clearing claws 10. The positioning body 12 is hinged with the hinge support 7 provided on the housing 1 through the positioning shaft, and a handle 8 is provided at the outer end of the positioning shaft.

During use, the single-disk double-row seed metering device is installed on the sowing monomer frame, and then the two seeding pipes 9 are connected with the seeding pipes. When the seeder is running, the seed disc 2 rotates upwards counterclockwise and fully sucks the seeds at the lower part of the housing 1, and continues to rotate to the position of the seed cleaner 3. The three seed cleaner claws of the seed cleaner 3 Among 10, the middle one is in the middle of the two circles of the seed-suction hole circumference lines, and the two clearing claws 10 are respectively in the inside of the inner circle seed-suction hole circumference line and the outside of the outer ring seed-suction hole circumference line, so that the two circles of suction holes The seed holes are cleaned on both sides at the same time to ensure that each seed suction hole only absorbs one seed. The seeding disc 2 continues to rotate to the top of the seed sorting box 4 body, as shown in Fig. The seeds adsorbed on the seed suction holes of the outer ring are shunted into a corresponding sorting tube 9, and the seed blocking plate 6 shunts the seeds adsorbed on the seed sucking holes of the inner ring into another corresponding sorting tube 9, and the seeds are then passed through the guiding tube 9. The seed tube falls into the seed ditch, and realizes two circles of seed suction holes, after the seeds are out of the vacuum, they can be completely shunted and accurately arranged in two rows.

During the working process of the single-disc double-row seed metering device, the quality of the sowing operation can be detected in a timely manner. If there is re-seeding, it means that the seed cleaning is not thorough enough, and there is no guarantee that each seed suction hole only absorbs one seed. The seed cleaning device needs to be used 3. Adjust. During adjustment, the operating handle 8 rotates the positioning shaft to make the positioning body 12 swing around the axis of the seed clearing claw 10 in the middle, so that the left and right two seed clearing claws 10 are respectively aligned with the circumferential line of the inner ring seed suction hole. The inner side and the outer side of the outer circle of the seed suction hole are closer to each other, so that the ideal seed clearing effect can be obtained.

The invention realizes single-disc double-row precision seed metering, has simple structure, is convenient to use and adjust, and improves the working stability of the seed meterer.

The present invention is applicable to the supporting use of the double-row seeder on the ridge.

Claims (2)

1. A single-disc double-row seed metering device, comprising a housing (1) and a seeding disc (2) rotatably mounted on the housing (1), as well as a cleaning device arranged on the housing (1). The seed device (3) is characterized in that it also includes a sorting box (4), the sorting box (4) is arranged at the bottom of the housing (1), and the side of the sorting box (4) is connected with the seeding tray ( 2) The seed suction surface is close to each other, the horizontal projection of the seed sorting box (4) body is rectangular, the upper opening of the seed sorting box (4) body is inclined downward relative to the direction of the seeding tray (2), and the seed sorting box (4) is along the The vertical center plane in the length direction of the rectangular body is in the same plane as the center line of symmetry of the vertical tangent to the downward rotation direction of the circumference of the two circles of seed suction holes set on the seed metering disc (2). Two sorting tubes (9) are arranged in parallel at the mouth, and a sorting tongue (5) is set on the vertical center plane of the sorting box (4) along the length direction of the rectangular body, and the sorting tongue (5) extends upwards to the horizontal centerline of the seeding tray (2), and the side of the seeding tongue (5) is attached to the seed-suction surface of the seed-discharging tray (2) and the two circles of seed-suction holes are separated vertically, Parallel to the sorting tongue (5), a seed blocking plate (6) is arranged on the short side of the seed sorting box (4) body, and the seed blocking plate (6) extends upwards through the circumferential line of the seed suction hole in the inner ring. The side of the seed shielding plate (6) is in close contact with the seed suction surface of the seed metering tray (2), and the seed cleaner (3) is set above the horizontal center line of the seed metering tray (2) and is located on the seed metering tray (2). 2) Rotate the direction side upwards. 2. The single-disc double-row seed metering device according to claim 1, characterized in that: the seed cleaner (3) consists of a handle (8), a seed cleaner claw (10), a pressure spring (11), a positioning body (12), the clearing claws (10) are cylindrical, and the three clearing claws (10) are inserted in the inner end surface of the positioning body (12) in parallel and equally spaced along the axial direction. The inner end of the seed claw (10) is provided with a pressure spring (11) along the axial direction, and the outer end of the seed clearing claw (10) protrudes from the positioning body (12) and presses against the suction plate (2) vertically in the axial direction. On the seed surface, the middle one of the three seed-clearing claws (10) is in the middle of the two rings of the seed-suction holes, and the left and right two seed-clearing claws (10) are respectively on the inside and outside of the inner circle of the seed-suction holes. Outside the circle line of the suction hole, a positioning shaft is arranged on the outer end surface of the positioning body (12) and parallel to the three clearing claws (10). The hinge support (7) on the body (1) is hinged, and the outer end of the positioning shaft is provided with a handle (8).