CN107079639B

CN107079639B - Centrifugal conical disc type high-speed seed discharging unit

Info

Publication number: CN107079639B
Application number: CN201710334326.1A
Authority: CN
Inventors: 周福君; 李沐桐; 李天宇
Original assignee: Northeast Agricultural University
Current assignee: Northeast Agricultural University
Priority date: 2017-05-12
Filing date: 2017-05-12
Publication date: 2021-01-08
Anticipated expiration: 2037-05-12
Also published as: CN107079639A

Abstract

A centrifugal conical disc type high-speed seed discharging monomer, belonging to agricultural machinery; the upper part and the lower part of the opposite side surface of the U-shaped opening type fixed plate are respectively provided with a seed charging and discharging mechanism consisting of a seed discharging disc, a centrifugal conical disc, a driving double-chain wheel and a fixed seed charging pipe and a seed guiding mechanism consisting of a driven chain wheel, a driving shaft, a supporting shaft, an annular seed guiding belt and a U-shaped end cover, a chain is sleeved on the driving double-chain wheel and the driven chain wheel, the inner side surface of the centrifugal conical disc is provided with a conical seed charging groove, an annular sliding groove and an annular sheet groove, and the inner side surface of the seed discharging disc is provided with a bearing, an annular seed protecting sheet, a blockage removing sheet, a slope-shaped arc seed guiding groove, a seed; the single body has novel and reasonable structure, high seed filling rate, low miss-seeding rate, reliable use, less faults and high operation efficiency, and is particularly suitable for high-speed seeding operation.

Description

Centrifugal conical disc type high-speed seed discharging unit

Technical Field

The invention belongs to agricultural machinery, and mainly relates to a seed sowing device.

Background

The existing mechanical crop seeding devices including a hole-pocket wheel type seeding device, a bucket wheel type seeding device and a finger-clamping type seeding device cannot be used in high-speed seeding operation. When the machine runs at high speed, the rotation speed of a hole pocket wheel or a scoop wheel in the seeding unit is high, the seed filling process of filling seeds into pockets or scoops is very difficult, the seed filling rate is greatly reduced, the miss-seeding rate is increased, and the seeding operation quality is seriously influenced. The seed filling capacity of the air-suction seed sowing device is higher than that of a mechanical seed sowing device, but the air-suction seed sowing device must be matched with a fan system, so that the structure is complex and large, the manufacturing cost is higher, the power consumption is high, and the operation cost is increased. In recent years, with the improvement of the technical level of agricultural mechanized operation in China, the demand of a high-speed seed sowing device is more urgent for improving the efficiency of the seeding mechanized operation.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a centrifugal conical disc type high-speed seed discharging monomer by combining with the actual needs of agricultural production operation, so that the aims of meeting the use requirements of high-speed seeding operation, improving the seed charging efficiency, reducing the miss rate, reducing the energy consumption and ensuring the seed discharging quality are fulfilled.

The purpose of the invention is realized as follows: a seed discharging disc is fixedly arranged on the upper portion of one side face of the U-shaped opening type fixing plate, bearings are uniformly arranged on the edge portion of the seed discharging disc along the circumferential direction, an annular seed protecting sheet, a blockage removing sheet and a seed blocking block are fixedly arranged on the outer end face of the seed discharging disc respectively, a slope-shaped arc-shaped seed guiding groove is arranged on the outer end face of the seed discharging disc and is positioned at the lower side portion of the blockage removing sheet, and the slope-shaped arc-shaped seed guiding groove is communicated with a seed discharging through hole in the seed discharging disc; the seed feeding device is characterized in that a centrifugal conical disc is axially and radially positioned and circumferentially rotatably sleeved on a fixed seed filling pipe, a driving double-chain wheel is fixedly arranged at the central part of the outer end face of the centrifugal conical disc, the centrifugal conical disc is rotatably buckled on the outer side face of a seed discharging disc, an annular sliding groove and an annular sheet groove are respectively formed in the inner end face of the centrifugal conical disc, conical seed filling grooves are uniformly distributed along the circumferential direction and radially arranged on the inner end face of the centrifugal conical disc, the conical seed filling grooves and the annular sheet groove are in crossed configuration, a bearing is arranged in the annular sliding groove, a blockage removing sheet is arranged in the annular sheet groove, and an annular seed protecting sheet and a seed blocking block are positioned in a conical cavity of the centrifugal conical disc; a driving shaft and a supporting shaft are assembled on the U-shaped end cover in a mutually parallel and rotatable mode, an annular guide belt is sleeved on the driving shaft and the supporting shaft, a driven chain wheel is fixedly installed on the driving shaft, and the U-shaped end cover is fixedly installed on the lower portion of the other side face of the U-shaped opening type fixing plate and is located at the position of the outer side of the U-shaped opening; the chain is sleeved on the driving double chain wheel and the driven chain wheel, so that the centrifugal conical disc type high-speed seed sowing unit is formed.

The invention adopts the centrifugal force and the rotating force generated by the rotating centrifugal conical disc to forcibly and efficiently charge the seeds into the seed discharging disc in the high-speed seed charging process and discharge the seeds onto the annular seed guide belt through the seed discharging disc, thereby realizing the requirement of high-speed seed discharging operation.

Drawings

FIG. 1 is a schematic view of the overall structure of a centrifugal conical disc type high-speed seed discharging unit;

FIG. 2 is a right side view of FIG. 1;

FIG. 3 is a schematic view of a seed plate structure;

FIG. 4 is a schematic diagram of a centrifuge cone disk configuration;

FIG. 5 is a sectional view taken along line A-A of FIG. 4;

FIG. 6 is an exploded view of the overall structure of a centrifugal conical disk type high-speed seed discharging unit.

Description of part numbers in the figures:

1. the seed feeding device comprises a fixed seed filling pipe, 2, a driving double-chain wheel, 3, a centrifugal conical disc, 4, a bearing, 5, a seed discharging disc, 6, an annular seed protecting disc, 7, a U-shaped notch type fixing plate, 8, a driving shaft, 9, an annular guide belt, 10, a U-shaped end cover, 11, a supporting shaft, 12, a driven chain wheel, 13, a slope-shaped arc seed guiding groove, 14, a blockage removing disc, 15, a seed discharging through hole, 16, a seed blocking block, 17, a chain, 18, a conical seed filling groove, 19, an annular sliding groove, 20 and an annular disc groove.

Detailed Description

The following detailed description of the inventive embodiments is provided in connection with the accompanying drawings. A centrifugal conical disc type high-speed seed sowing unit is characterized in that a seed sowing disc 5 is fixedly arranged on the upper portion of one side face of a U-shaped opening type fixing plate 7, bearings 4 are uniformly arranged on the edge portion of the seed sowing disc 5 along the circumferential direction, an annular seed protecting sheet 6, a blockage removing sheet 14 and a seed blocking block 16 are fixedly arranged on the outer end face of the seed sowing disc 5 respectively, a slope-shaped arc seed guiding groove 13 is arranged on the outer end face of the seed sowing disc 5 and located at the lower side portion of the blockage removing sheet 14, and the slope-shaped arc seed guiding groove 13 is communicated with a seed discharging through hole 15 in the seed sowing disc 5; the fixed seed charging tube 1 is axially and radially positioned, a centrifugal conical disc 3 is circumferentially and rotatably sleeved and mounted, a driving double-chain wheel 2 is fixedly mounted at the central part of the outer end face of the centrifugal conical disc 3, the centrifugal conical disc 3 is rotatably buckled on the outer side face of a seed sowing disc 5, an annular chute 19 and an annular sheet groove 20 are respectively formed in the inner end face of the centrifugal conical disc 3, conical seed charging grooves 18 are uniformly distributed along the circumferential direction and radially arranged on the inner end face of the centrifugal conical disc 3, the conical seed charging grooves 18 and the annular sheet groove 20 are in crossed configuration, a bearing 4 is arranged in the annular chute 19, a blockage removing sheet 14 is arranged in the annular sheet groove 20, and the annular seed protecting sheet 6 and a seed blocking block 16 are positioned in the conical cavity of the centrifugal conical disc 3; a driving shaft 8 and a supporting shaft 11 are rotatably assembled on a U-shaped end cover 10 in parallel, an annular guide belt 9 is sleeved on the driving shaft 8 and the supporting shaft 11, a driven chain wheel 12 is fixedly arranged on the driving shaft 8, and the U-shaped end cover 10 is fixedly arranged on the lower part of the other side surface of the U-shaped opening type fixing plate 7 and is positioned at the outer side part of the U-shaped opening; the chain 17 is sleeved on the driving double chain wheel 2 and the driven chain wheel 12.

When the seed sowing device is used, external input power drives the centrifugal conical disc 3 to rotate relative to the seed sowing disc 5 through the driving double-chain wheel 2, seeds enter a cavity between the centrifugal conical disc 3 and the seed sowing disc 5 from the fixed seed filling pipe 1, the seeds move under the action of centrifugal force and rotating force of the conical seed filling groove 18 on the centrifugal conical disc 3, the seeds are sequentially filled into the slope-shaped arc-shaped seed guiding groove 13 under the cooperation of the annular seed protecting piece 6 and the seed blocking block 16 and are discharged on the annular seed guiding belt 9 through the seed discharging through hole 15, and in synchronization with the operation, the rotating motion of the driving double-chain wheel 2 drives the driven chain wheel 12 to rotate through the chain 17, the annular seed guiding belt 9 is driven to rotate through the driving shaft 8, and the seed sowing operation is completed. The blockage removing sheet 14 can remove the seeds clamped in the conical seed filling groove 18, so that the seeding omission is avoided.

Claims

1. A centrifugal conical disc type high-speed seed metering monomer is characterized in that: the seed metering disc is characterized in that a seed metering disc (5) is fixedly arranged on the upper portion of one side face of a U-shaped opening type fixing plate (7), bearings (4) are uniformly distributed and installed on the edge portion of the seed metering disc (5) along the circumferential direction, an annular seed protecting sheet (6), a blockage removing sheet (14) and a seed blocking block (16) are fixedly installed on the end face, far away from the U-shaped opening type fixing plate (7), of the seed metering disc (5), a slope-shaped arc seed guiding groove (13) is formed in the position, far away from the end face of the U-shaped opening type fixing plate (7), of the seed metering disc (5) and located on the lower side of the blockage removing sheet (14), and the slope-shaped arc seed guiding groove (13) is communicated with a seed discharging through hole; the centrifugal conical disc (3) is axially and radially positioned and circumferentially rotatably sleeved on the fixed seed charging tube (1), the driving double chain wheel (2) is fixedly arranged at the central part of the end face of the centrifugal conical disc (3) close to the fixed seed charging tube (1), the centrifugal conical disc (3) is rotatably buckled on the end face of the seed discharging disc (5) far away from the U-shaped notch type fixing plate (7), the end face of the centrifugal conical disc (3) far away from the fixed seed charging tube (1) is respectively provided with an annular sliding groove (19) and an annular sheet groove (20), the conical seed charging grooves (18) are uniformly distributed along the circumferential direction and radially arranged at the end face of the centrifugal conical disc (3) far away from the fixed seed charging tube (1), the conical seed charging grooves (18) and the annular sheet grooves (20) are in crossed configuration, the bearings (4) are configured in the annular sliding grooves (19), and the blockage removing sheets (14) are configured in the annular sheet grooves (20), the annular seed protecting sheet (6) and the seed blocking block (16) are positioned in a conical cavity of the centrifugal conical disc (3); a driving shaft (8) and a supporting shaft (11) are rotatably assembled on a U-shaped end cover (10) in parallel, an annular guide belt (9) is sleeved on the driving shaft (8) and the supporting shaft (11), a driven chain wheel (12) is fixedly arranged on the driving shaft (8), and the U-shaped end cover (10) is fixedly arranged on the lower part of the other side surface of the U-shaped opening type fixing plate (7) and is positioned at the outer side part of the U-shaped opening; the chain (17) is sleeved on the driving double chain wheel (2) and the driven chain wheel (12).