Design of driving lever air suction type seed metering device

摘要

In order to realize the precision seeding of big seeds such as peanut, in this paper we designed a seeding machine which is characterized in that it is provided with an adjustable intake pipe. The upper end of which is connected with the original air inlet pipe of the seeding machine, the lower end is communicated with the lower chamber of the seeding machine's air chamber, and set a through holes on it for install the driving lever. On the side wall of the planter roller we setting adjustment blocks which could extrude the driving lever to make it rotation control the opening and closing of the trachea. The structure can realize the replacement of the adjustment block rapidly during the seeding process, and through the plectrum to control the opening and closing of the intake pipe, thus, the regulation of the number and the spacing of the seeds in the seeding process can be realized.