A kind of air-suction type hole wheel type precision hole sowing seed metering device for small particle size seeds

An air suction type, small particle size technology, applied in the field of agricultural machinery, can solve the problems of broken seeds, prone to missed sowing, missed seedlings and other problems, so as to reduce extrusion damage, improve work efficiency and prolong service life Effect

Active Publication Date: 2021-07-13
HUAZHONG AGRI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The pneumatic seed metering device sucks seeds through negative pressure, or negative pressure sucks seeds and positive pressure seeds, which is greatly affected by air pressure fluctuations. When operating at high speed, the performance of the seed metering device is unstable, prone to missed seeding, and the hole is small and easy to Seedlings are blocked, resulting in missed sowing and broken seedlings; mechanical seed metering devices are prone to seed damage. The seeder is difficult to adapt to high-speed seeding operations

Method used

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  • A kind of air-suction type hole wheel type precision hole sowing seed metering device for small particle size seeds
  • A kind of air-suction type hole wheel type precision hole sowing seed metering device for small particle size seeds
  • A kind of air-suction type hole wheel type precision hole sowing seed metering device for small particle size seeds

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Embodiment Construction

[0029] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0030] see Figure 1 to Figure 6 . It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the sa...

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Abstract

The invention belongs to the technical field of agricultural machinery, and provides an air-suction hole-wheel-type precise seed metering device for small particle size seeds. The box body (1) is provided with a seeding wheel (2), and the seeding wheel (2) is provided with a negative pressure zone (24) communicated with the seeding wheel (2), and the negative pressure zone ( 24) There is a seed pushing wheel (5) inside, and the meshing transmission between the seed pushing wheel (5) and the seed row (2) is carried out. In the present invention, two filling methods of gravity and air suction are combined to improve the seed wheel The seed filling ability, seed filling efficiency and seed filling reliability; at the same time, by adjusting the size of the negative pressure, the seed metering wheel can adapt to the requirements of high-speed seed metering and improve the working efficiency of the seed meterer. At the same time, the present invention can Effectively reduce the rate of seed damage.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and relates to a small-diameter seed sowing and metering device, in particular to an air-suction type hole-wheel type precision hole sowing seed metering device for small-particle diameter seeds. Background technique [0002] my country is a big country for planting small-sized seed crops. The small-sized seeds refer to seeds with an average particle size of less than 3 mm, mainly including rapeseed, millet, and some vegetables and flower seeds. At present, the sowing methods of small-sized seeds are still mainly manual or semi-mechanized, which has problems such as low operation efficiency, high operation cost, large amount of seeds used, uneven distribution of seeds, etc., and the labor intensity of seedlings or seedling replacement is high. Comprehensive The low economic benefit limits the expansion of the sowing scale of small-size crop seeds. [0003] Most of the existing sma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01C7/18A01C7/20
CPCA01C7/18A01C7/20
Inventor 黄海东房震周阳魏明徐中杰李峰陈建新王本义
Owner HUAZHONG AGRI UNIV
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