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Pneumatic centralized seed metering device

A technology of pneumatic type seed metering device, which is applied in the direction of interval-type quantitative seeding machinery and parts of planter, can solve the problem of inconvenient maintenance and adjustment of centralized seed metering device, occupying the effective space of a large-volume seed box, and increasing the complexity of the structure. and other problems, to achieve the effect of saving seed box space, simplifying structure, and convenient maintenance and adjustment.

Inactive Publication Date: 2012-02-22
HEILONGJIANG PROV AGRI MACHINERY ENG SCI INST
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  • Abstract
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  • Application Information

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Problems solved by technology

However, there are still shortcomings: since the centralized seed metering device is set in a large-volume seed box, and a pneumatic swirling seed delivery device is installed above the centralized seed metering device, it occupies the effective space of the large-volume seed box and is not convenient for centralized seeding. The maintenance and adjustment of the seeder also increases the complexity of the structure

Method used

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  • Pneumatic centralized seed metering device
  • Pneumatic centralized seed metering device
  • Pneumatic centralized seed metering device

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0019] like figure 1 As shown, a schematic diagram of the structure of the pneumatic centralized seed metering device of the present invention is provided, including the lower casing 4 and the negative pressure seed suction system installed on the base of the lower casing 4, in figure 2 , Figure 4 Among them, the seed cleaning pipe 20 installed on the bottom of the lower casing 4 is evenly distributed in the circumferential direction. The seed cleaning pipe 20 is connected to the seed delivery pipe 21, and the seed discharge wheel 16 installed on the base of the lower casing 4 can be horizontally rotatably supported. The outer edge of wheel 16 is evenly distributed radially and is provided with seed suction hole 14; figure 1 , figure 2 As shown, the negative pressure seed suction system is composed of a negative pressure fan connecting pip...

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Abstract

The invention discloses a pneumatic centralized seed metering device, and is aimed at providing a pneumatic centralized seed metering device which is convenient for maintenance and adjustment, has a simple structure, and saves space of a seed case. The device comprises a lower housing, and a negative pressure seed-sucking system mounted on a pedestal of the lower housing; a seed metering wheel ismounted on the pedestal of the lower housing and is supported to rotate horizontally; an upper housing is disposed above the lower housing; a seed-dropping cone is fixedly mounted on the upper housing; a seed-guiding cone is mounted on a seed metering wheel below the seed-dropping cone; the seed-dropping cone and the seed-guiding cone are arranged with equal upper and lower intervals to form a seed-guiding cavity; each seed-separating port is communicated with the seed-guiding cavity; a seed-filling chamber is disposed corresponding to each seed-separating port; the seed-filling chamber is clampedly fixed between an intermediate seed-separating body and the lower housing; a positive pressure hole on each intermediate seed-separating body is communicated with a positive pressure system disposed on the upper housing respectively. The invention is applicable to precision sowing operation of large-scale seeders.

Description

technical field [0001] The invention belongs to the sowing machinery in the technical field of agricultural machinery, in particular to a pneumatic centralized seed metering device. Background technique [0002] With the development of modern large-scale agriculture, in recent years, large-scale seeders can achieve wide-width, high-efficiency, and precise sowing operations, and have been successfully applied. The large-scale seeder realizes wide-width multi-row sowing, and the centralized seed meter that meets the performance design requirements of the large-scale seeder is the main key component. At home and abroad, a relatively excellent solution has been designed for the centralized seed metering device that meets the design performance requirements of large-scale seeders. For example, a known pneumatic centralized seed metering device is to set the centralized seed metering device In the volumetric seed box, a pneumatic swirl seed delivery device is installed above the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C7/18A01C7/20
Inventor 郝剑英刘国平许剑平谢宇峰梁玉成康海燕牟雪雷
Owner HEILONGJIANG PROV AGRI MACHINERY ENG SCI INST
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