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A precise delivery mechanism and precise delivery method for seeds of a corn planter

A corn planter and seed technology, which is applied to the parts of the planter, the machine for interval quantitative sowing, and the fertilization device, etc., can solve the problems of reduced friction between the seed and the seeding plate, complex structure, and increased power consumption of the planting system. , to achieve the effect of simple structure, maintaining spacing accuracy and convenient adjustment

Inactive Publication Date: 2016-11-16
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the angle between the vertical centerline and the horizontal direction of the seeding disc of the air suction seed metering device in this system is 66 degrees, most of the seeds in the seed filling chamber are accumulated on the inner surface of the front housing of the seed metering device under the action of gravity , leading to a decrease in the friction between the seeds and the seeding disc, which is not conducive to the adsorption of the seeds on the hole of the seeding disc under the action of the pressure difference. Compared with the vertically installed seed metering device, the inclined-installed air suction The wind pressure required by the seed meter increases, which leads to an increase in the power consumption of the seeding system; in addition, the system structure is more complicated

Method used

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  • A precise delivery mechanism and precise delivery method for seeds of a corn planter
  • A precise delivery mechanism and precise delivery method for seeds of a corn planter
  • A precise delivery mechanism and precise delivery method for seeds of a corn planter

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Embodiment Construction

[0092] The present invention is further described below in conjunction with embodiment.

[0093] The present invention provides a precise seed delivery mechanism for a corn planter, which includes a control unit 10, a drive unit and an execution unit.

[0094] like Figure 7 As shown, the control unit 10 includes a chip 407, a vehicle-mounted 12V DC power supply 401, a voltage stabilizing device 402, a speed measuring radar 403, a signal processing circuit 404, a reset button 405, a first switch 408, a second switch 406, a man-machine interface 11, a second A stepping motor encoder 106 , a second stepping motor encoder 41 and a third stepping motor encoder 203 . The chip is preferably an STC90C51 chip.

[0095] The drive unit includes a first stepping motor 105 , a first stepping motor driver 71 , a second stepping motor 42 , a second stepping motor driver 72 , a third stepping motor 202 and a third stepping motor driver 73 .

[0096] like figure 1 , image 3 , Figure 5...

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Abstract

The invention relates to an accurate seed throwing mechanism and an accurate seed throwing method of a corn planter. The accurate seed throwing mechanism comprises a control part, a driving part and an executing part, wherein the executing part comprises a seed sowing device, a seed taking unit and a seed conveying unit; seeds can be adsorbed by profiled holes in a seed plate under the action of negative pressure, residual seeds are removed after the seeds adsorbed in the profiled holes in the seed plate pass through a seed scraping plate which is positioned above the left part of the seed sowing device, and only one seed is left in each profiled hole; pulling fingers of a seed taking wheel are used for pulling out the seeds which are about to drop in order and enabling the seeds to enter grilles formed by the pulling fingers and a seed guiding groove, the seeds are pushed to the left upper part of a conveyor belt by the pulling fingers and are thrown out, the seeds fall into separating grooves of the conveyor belt under the action of gravitation and move to the bottom part of the seed conveying unit along with the conveyor belt, and the seeds can fall onto a seedbed under the action of a pushing force of separating plates of the conveyor belt and the self gravitation of the seeds. The electrically-driven accurate seed throwing mechanism disclosed by the invention is capable of initiatively taking the seeds, accurately conveying the seeds, realizing real-time zero-speed seed throwing and maintaining the spacing accuracy of the seeds and has the characteristics that the structure is simple, the adjustment is convenient, and the like.

Description

technical field [0001] The invention belongs to the field of automated agricultural equipment, and in particular relates to a precise seed delivery mechanism and a precise seed delivery method for a corn planter. Background technique [0002] With the development of precision seeding technology in our country, high-speed precision seeding has become the development trend of corn seeding. The qualified index of particle distance is an important index to measure the seeding quality of precision seeders. The accuracy of precision seed metering is mainly affected by the filling quality , Clearing seed quality, seeding height and seeding speed. The missed seeding index of the pneumatic precision seed meter with excellent performance is lower than 5%, and the reseeding rate is lower than 4%. Its various working indicators are better than the requirements of the national standard, so the quality of seed filling and clearing has been guaranteed to a certain extent. The seeding heig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01C7/18
CPCA01C7/20A01C19/02
Inventor 杨丽刘全威张东兴崔涛史嵩张瑞张智龙屈哲和贤桃殷小伟李克鸿
Owner CHINA AGRI UNIV
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