Small particle size seed air-suction hole-wheel type precision hole sowing seed metering device

An air-suction type, small particle size technology, applied in the field of agricultural machinery, can solve the problems of prone to missed sowing, broken seeds, and easily blocked holes, etc., to prevent missed sowing from breaking ridges, prolong service life, and improve seed filling effect of ability

Active Publication Date: 2020-09-15
HUAZHONG AGRI UNIV
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  • Abstract
  • Description
  • Claims
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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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  • Small particle size seed air-suction hole-wheel type precision hole sowing seed metering device
  • Small particle size seed air-suction hole-wheel type precision hole sowing seed metering device
  • Small particle size seed air-suction hole-wheel type precision hole sowing seed metering device

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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 a small particle size seed air-suction hole-wheel type precision hole sowing seed metering device which comprises abox body (1). A seed throwing funnel (4) is arranged at the bottom of the box body (1), the box body (1) is internally provided with a seed metering wheel (2), the seed metering wheel (2) is internally provided with a negative pressure zone (24) communicating with the seed metering wheel (2), the negative pressure zone (24) is internally provided with a seed pushing wheel (5), and the seed pushing wheel (5) is in meshing transmission with the seed metering wheel (2). Gravity and air suction are combined, so that the seed filling capacity, seed filling efficiency and reliability of seed filling of the seed metering wheel are improved; meanwhile, the seed metering wheel can adapt to the requirements of high-speed seed metering by adjusting the magnitude of negative pressure, and the workingefficiency of the seed metering device is improved; and meanwhile, the seed damage rate can be effectively reduced.

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 Applications(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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