Pneumatic direct seeding precision sowing device for rice bud seeds

Abstract

The invention discloses a pneumatic direct seeding precision sowing device for rice bud seeds. The pneumatic direct seeding precision sowing device comprises a pneumatic vibration seed box, a profile hole roller mechanism, a seed cleaning mechanism and a seed protective mechanism, wherein the pneumatic vibration seed box comprises a seed box frame, a pneumatic vibrator, an air pressure regulator,a box body, an opening regulating plate and a plate sieve; the profile hole roller mechanism comprises a roller, a negative pressure sealing element and a positive pressure sealing element; a plurality of frusto-conical profile holes of which the insides are provided with suction holes are formed on the outer surface of the roller; an air inlet hollow shaft is fixedly connected with an air outlethollow shaft by a connecting shaft; the positive pressure sealing element is connected with the air inlet hollow shaft by a second thread connecting pipe, and the negative pressure sealing element isconnected with the air outlet hollow shaft by a first pressure sealing element; the seed protective mechanism comprises a seed protective belt support and an elastic seed protective belt; and the seed cleaning mechanism comprises a brush carrier and a seed cleaning brush. The pneumatic direct seeding precision sowing device has a simple and novel structure, solves the problems of the damage to the bud seeds, the stoppage of the profile holes, sowing missing and the like effectively, improves sowing accuracy, can be used for indoor industrial seedling raising and sowing and also can be used for the direct seeding of the rice bud seeds in fields.

Description

technical field [0001] The invention belongs to the field of agricultural seeding machinery, and specifically refers to a pneumatic precision seeding device for direct seeding of rice bud seeds. Background technique [0002] Live seeding of rice buds means that rice seeds are sown directly on the flat surface of the field after pre-germination. Compared with rice transplanting, it saves the heavy work of raising seedlings, transporting seedlings, and transplanting seedlings, as well as the accompanying energy. Consumption is a labor-saving, time-saving, cost-saving and efficient agronomic planting method, and it is a hot spot for recent research scholars. [0003] Because the traditional direct seeding of rice is done directly by manual throwing, it cannot avoid technical defects such as uneven sowing, serious seed waste, and heavy field management work in the later stage. [0004] In recent years, researchers have introduced several mechanical direct seeding machines for r...

AI Technical Summary

Problems solved by technology

Although it overcomes the defects of uneven manual sowing and serious seed waste, and improves the sowing efficiency, the mechanical seeding device is easy to cause damage to the buds with high moisture content, resulting in waste of seeds and lack of seedlings, and secondly, it is difficult to achieve precision sowing

[0005] The research on the pneumatic seeding device has provided an effective solution to the problems that the buds are easily damaged and it is difficult to achieve precise seeding.

However, due to its complex structure, it is currently only used in indoor factory seedling raising technology, but there are problems such as hole blockage, missed seeding, and re-seeding.

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