Offset double-disc clamping air suction type seed sowing device

Abstract

The invention discloses an offset double-disc clamping air suction type seed sowing device which belongs to the technical field of agricultural machinery. A seed box is fixedly connected with a seed sowing device cover, a vent pipe is respectively and fixedly connected with a shell and an airtight air box, and the lower end of a seed conveying disc shaft is movably connected with the seed sowing device cover; the upper end of the seed conveying disc shaft is fixedly connected with the center of a seed conveying disc; and the lower end of a seed sowing disc shaft is movably connected with a seed discharge device cover, the upper end of the seed sowing disc shaft is respectively and fixedly connected with a spherical curved surface seed feeding mechanism and a sowing suction disc, a seed discharge pipe is fixedly connected with one side of the seed discharge device cover and positioned right below a seed suction hole, a rubber wind shield is arranged above the seed suction hole, and one side of the rubber wind shield is fixedly connected with the side wall of the airtight air box. The device can have functions of discharging, feeding and sowing seeds of various shapes and sizes and ensures the single seed sowing rate; and the device does not miss holes and damage the seeds, can sow single seeds at hill spacing, uniformly sows, generates small variation, has a wide application scope and can continuously and stably rotate at high speed, so that the working speed of a sowing process is greatly increased, and novel equipment is provided for continuous high-speed operation of agricultural sowing machinery.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to an air-suction seed metering device clamped by offset double discs. Background technique [0002] With the development of science and technology, various high-quality and high-yield soybean varieties emerge in an endless stream, and the requirements for the performance and quality of sowing operations are also getting higher and higher. The socket-type and spoon-type seed metering devices mainly used in my country at present are difficult to meet the agronomic requirements of high precision, high efficiency and stable performance. In addition, some seed metering devices imitate foreign models, such as finger clip seed metering devices. The seed metering device has complex structure, high processing technology and material requirements, high production cost, and relatively complicated production and processing of its supporting parts. Therefore, it is o...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of offset double disc clamping air-suction seed metering device, to reduce the phenomenon of seed damage, re-seeding, and missing seeding when the seed metering device sows, improve seeding efficiency and reliability, expand the scope of application, and solve the problem of The current domestic seed metering devices have disadvantages such as low seeding accuracy, low operating speed, and poor adaptability to seed shape and size.

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