Vertical conical screen for separating beans, soil and grass

Abstract

The invention discloses a vertical conical screen for separating beans, soil and grass. the vertical conical screen comprises an upper rack, a lower rack and a conical screen body arranged between theupper rack and the lower rack, a conveying belt is arranged on one side of the conical screen body, an output end of the conveying belt is matched with a top inlet of the conical screen body, a firstmotor and a centrifugal fan driven by the first motor are arranged on the upper rack, a fan cover plate is arranged below the centrifugal fan, the conical screen body is sleeved with a sealing cover,the top of the sealing cover is covered with the fan cover plate, a center shaft and a screening disc are arranged in the conical screen body, the screening disc is fixed to the top end of the centershaft, a driving mechanism for driving the conical screen body to rotate is arranged on the lower rack, the driving mechanism comprises a second motor, a slewing bearing and a gear, a discharging hopper is arranged below the slewing bearing, the lower end of the conical screen body is fixed to the slewing bearing, the slewing bearing is connected with the gear in a meshed mode, the lower end of the center shaft sequentially penetrates through the slewing bearing and the discharging hopper, a belt wheel is arranged at the lower end of the center shaft, and the belt wheel and the gear are driven by the second motor.

Description

technical field [0001] The invention belongs to the technical field of agricultural production equipment, and in particular relates to a vertical conical sieve for separating beans, soil and grass. Background technique [0002] When mechanized harvesting of rhizome crops, such as oily bean, it is necessary to excavate the soil to lift the beans, soil, and grass to a separation device to separate the beans, soil, and grass. However, in practical applications, the harvesting loss is large and the harvesting efficiency is low. The subdivision effect is poor, which will bring adverse effects to the deep processing of oily bean in the later stage. [0003] Existing drum device is generally installed on the frame with an inclination, and the motor is connected with the drum device through a speed reducer through a shaft coupling to drive the drum device to rotate around its axis. When the material enters the drum device, due to the inclination and rotation of the drum device, the...

AI Technical Summary

Problems solved by technology

However, during the turning and rolling process, the contact area between the material and the roller is only a small part, and the separation efficiency is not very high.

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