Double-hole air-suction type soybean and corn universal energy-saving seed metering device

An air-suction and seed-metering technology, which is applied in the field of agricultural machinery, can solve the problems of poor air-suction versatility and large air pressure loss, and achieve the effects of reducing negative pressure loss, increasing adsorption, and increasing general seed-metering effect.

Inactive Publication Date: 2019-08-02
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of poor versatility and large air pressure loss of existing soybean and corn air suction, and provide a double-hole air suction general energy-saving seed metering device for corn and soybean

Method used

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  • Double-hole air-suction type soybean and corn universal energy-saving seed metering device
  • Double-hole air-suction type soybean and corn universal energy-saving seed metering device
  • Double-hole air-suction type soybean and corn universal energy-saving seed metering device

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Embodiment Construction

[0027] Further describe the present invention below in conjunction with accompanying drawing.

[0028] Such as figure 1 , Figure 12 to Figure 14 As shown, the present invention is composed of a seed feeding device A, a screw 2, a buckle B, a disc body C, an air cover D, a bearing 3, a ring buckle E, and a shaft F, wherein the seed feeding device A, a screw 2, a buckle B, The disc body C, the air cover D, the bearing 3 and the buckle E are arranged sequentially from left to right, and the inner ring surface 1 of the seed injection device is in clearance fit with the outer circular surface 10 of the disc body C; the first-order inner circle of the disc body C The surface 9 is connected with the first axial surface 32 of the shaft F in a gap; the fixed column pair 25 of the buckle B is in clearance fit with the fixed hole pair 11 of the disc body C, and the boss hole pair 26 of the buckle B is connected with the boss pair of the shaft F 28 Clearance fit; screw 2 is threadedly ...

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Abstract

The invention provides a double-hole air-suction type soybean and corn universal energy-saving seed metering device, which belongs to the technical field of agricultural machinery. In the invention, the edge of a disc body of the seed metering device is provided with a double-suction-hole seed taking groove, and a groove is arranged in the seed taking groove for soybean taking; the double suctionholes are connected with an air suction passage, the air suction passage is connected with the double suction holes and a negative pressure chamber, and the negative pressure chamber is formed by thecombination of the disc body and an air cover; the air cover has an air extraction hole and an air blocking block, and an isosceles cone ring is arranged on the air cover and the disc body; the air cover is matched with the bearing, the air cover is tightly buckled to the bearing by a ring buckle, the bearing and a second shaft surface of a shaft are in interference fit, and the disc body is tightly buckled to a rotating shaft by a buckle to ensure clearance fit between the disc body and the isosceles cone ring of the air cover. By adoption of the seed metering device of the invention, the universal seed metering of soybean and corn is realized, and known from aerodynamics, the waist faces of the isosceles cone rings are in clearance fit to form a continuous curved path, which can generatea throttling effect on the airflow, thereby reducing the air pressure loss of the air suction type seed metering device.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a double-hole air suction general energy-saving seed metering device for corn and soybean. Background technique [0002] Most of the current seeding trays have single air suction holes, which have poor adsorption effect on irregularly shaped corn. For the single-hole air-suction general-purpose pan for soybeans and corn, the design difficulty is increased. In addition, for the existing air suction method, the negative pressure chamber is mostly used to directly cooperate with the air suction hole on the disk body. Necessary air pressure loss. And because the 3D printing technology for the materials required for the seed tray is mature, it is possible to design parts with more complex structures. Therefore, it is necessary to design a seed meter that can better absorb irregular seeds and reduce air pressure loss. Contents of the invention [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C7/04
CPCA01C7/042
Inventor 黄东岩周仁义贾洪雷赵佳乐王奇朱龙图李名伟顾炳龙陈天佑
Owner JILIN UNIV
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