Seed metering device for potato planting machine

Abstract

The invention discloses a seed metering device for a potato planting machine, and the device belongs to the field of farmland planting machinery and equipment. The key points of the technical scheme are as follows: the device moves forward, as a driving ring gear wheel can rotate clockwise when contacting the ground, a planetary pinion gear set meshes inside is driven to rotate clockwise along with the driving ring gear wheel, the planetary gear set meshes with the tooth part on the outer side of a central rotating wheel at the center to form a speed change mechanism; and the rotation speed ofthe planetary pinion gear set is slowed down by counterclockwise rotation of the central rotating wheel, and the rotation speed of the planetary pinion gear set is accelerated by clockwise rotation of the central rotating wheel, so as to adjust the rotation speed of a seed metering wheel fixedly connected at the left end of the planetary pinion gear set, and to further adjust the frequency of potato seeds falling from a hemispherical seed groove on the lower side of the seed metering wheel, so that the control of the seed metering spacing is achieved. Compared with the traditional mode, the device has more convenient control of the seed metering spacing and flexible adjustable seed metering spacing, and does not need to replace the modularized seed metering plate to adjust the spacing.

Description

technical field [0001] The invention belongs to the field of farmland planting machinery and equipment, and in particular relates to a seed meter for a potato planter. Background technique [0002] Potato, as one of the four major food crops today, contains a variety of vitamins and inorganic salts, and has high protein nutritional value. It can be used as a vegetable to make delicacies or as a staple food. It plays an important role in world food production and people's life. In the development process of potato seeders, there have been widely used seed metering structures in a certain range, including: spoon plate seed meter, acupuncture seed meter, air suction seed meter, spoon type Seed meter, chain spoon seed meter and conveyor belt seed meter, etc. [0003] In the 1990s, acupuncture seed metering devices were widely used. The biggest advantage of this type of seed metering device is that it is very adaptable to the variation of seed potato shape and size. However, d...

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a seed metering device for potato planters in view of the problem that the current potato planter seed metering device is more troublesome for the adjustment of potato seed seeding spacing, that is, the spacing adjustment is more difficult to control

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