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Auxiliary seed-supporting air-suction type precision vegetable seed-metering device

A kind of seed metering and air-suction technology, which is applied in the fields of agricultural gas emission reduction, planter parts, climate sustainability, etc., and can solve missed seeding, uneven seeding, poor seed filling and clearing performance of seed metering device and other problems, to achieve the effect of uniform seeding, energy saving, and prevention of missing seeding

Pending Publication Date: 2022-07-12
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the pneumatic seed metering device has poor seed filling and clearing performance under high seeding frequency, and there are problems of common missing seeding and uneven seeding.

Method used

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  • Auxiliary seed-supporting air-suction type precision vegetable seed-metering device
  • Auxiliary seed-supporting air-suction type precision vegetable seed-metering device
  • Auxiliary seed-supporting air-suction type precision vegetable seed-metering device

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Embodiment

[0040] like figure 1 , figure 2 , image 3 as well as Figure 4 As shown, the present invention, an auxiliary seed-supporting air-suction type vegetable precision seed metering device, includes an input shaft 1, a main housing 2 of the seed metering device, a seed-blocking brush 3, an impurity-removing brush 4, and a limit plate 5 , Seed metering disc 6 , seed cleaning knife 7 , tightening nut 8 , sealing air cushion 9 , seed unloading mechanism 10 , suction chamber shell 11 and T-shaped rubber buckle 12 .

[0041] Among them, the suction chamber shell 11 is provided with an arc-shaped air chamber of 250°~270°, and the bottom end of the air chamber is provided with an air inlet, which is connected to the air pump through a pipeline to provide negative pressure; the suction chamber shell is also provided with screw holes and arcs Slotted hole for installing the seed unloading mechanism. The seed removal mechanism 10 is mounted on the suction chamber housing 11 by screws an...

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Abstract

The invention discloses an auxiliary seed-supporting air-suction type precise vegetable seed-metering device which comprises an input shaft, a seed-metering device main shell, a limiting disc, a seed-metering disc, a fastening nut, a seed unloading mechanism and a suction chamber shell, an air chamber is arranged in the suction chamber shell, the seed unloading mechanism is arranged on the suction chamber shell through a screw and a bolt, and the suction chamber shell is arranged on the seed metering device main shell; a seed chamber is arranged in the seed-metering device main shell; the input shaft sequentially penetrates through and is connected with a center hole of the seed-metering device main shell, the limiting disc and the seed-metering disc, the seed-metering disc and the seed-metering device main shell are limited through the limiting disc, the limiting disc is fastened on the input shaft in a threaded fit mode, and the seed-metering disc is fastened with the fastening nut in a matched mode through external threads at the tail end of the input shaft. The seed-metering device is simple and compact in structure and convenient to install and maintain, the seed supporting spoon structure assisting in seed supporting can remarkably improve the performance of the seed-metering device, the needed air pressure is reduced, the single-seed rate and the seed-metering uniformity are improved, and the phenomena of reseeding and miss-seeding are reduced.

Description

technical field [0001] The invention belongs to the technical field of precision seeding equipment, and in particular relates to an auxiliary seed-supporting air-suction type vegetable precision seed metering device. Background technique [0002] Precision seeding is the main development trend of direct seeding in vegetable fields, and its sowing quality mainly depends on the performance of the precision seed metering device. As the core component of the seeding machine, the precision seed meter plays a key role in the effective separation of single seeds, smooth and orderly migration and precise and orderly delivery of seeds. The air suction seed metering device avoids the damage to the seeds caused by the mechanical structure due to its advantages of airflow adsorption and seed metering. However, at present, the pneumatic seed metering device has poor seed filling and seed clearing performance under high seeding frequency, and there are problems of common missing seeding ...

Claims

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Application Information

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IPC IPC(8): A01C7/20
CPCA01C7/20Y02P60/20
Inventor 吴伟斌许健孙顺利何兆铠姚焙火张方任高昌伦罗茂林唐婷李杰高旭嵘张颖
Owner SOUTH CHINA AGRI UNIV
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