Unequal-amplitude material cleaning sieve

Abstract

An unequal-amplitude material cleaning sieve comprises a frame, a motor, a vibrating sieve, a feed inlet, a discharge outlet and a vibrating mechanism. The motor and the vibrating mechanism are respectively fixed on the frame, and the front end and the rear end of the vibrating sieve are respectively connected with the vibrating mechanism which is connected with the motor through a transmission mechanism. The vibrating mechanism comprises a pair of front eccentric wheels, a pair of rear eccentric wheels, a pair of front multistage link rods and a pair of rear multistage link rods, the front eccentric wheels and the rear eccentric wheels are driven by the transmission mechanism, the frame is rotationally connected with the front eccentric wheels as well as the rear eccentric wheels, the eccentric distance of each front eccentric wheel is larger than that of each rear eccentric wheel, each front multistage link rod is of a three-stage link rod structure, and each rear multistage link rod is of a two-stage link rod structure. Due to the fact that the vibrating sieve is driven to vibrate by the eccentric wheels and the multistage link rods, and the front link rods and the rear link rods are different in stage number, vibration directions of a sieve surface are diversified and better sieving effect can be achieved.

Description

technical field [0001] The invention relates to a cleaning sieve, in particular to a non-uniform material cleaning sieve suitable for cleaning agricultural materials and mining materials. Background technique [0002] After harvesting agricultural materials, stems, residual stems and leaves, immature fruits, soil clods, crushed soil, etc. need to be separated from mature fruits, etc. The vibrating sieve mechanism in the existing cleaning sieve usually only works under one amplitude condition, and the movement track of each part of the vibrating screen is the same, and the amplitude and vibration intensity of each part are also the same. Because the material on the screen surface of the feeding end of the vibrating screen is relatively concentrated, the material layer is relatively thick and concentrated at the front end of the sieve just before the material reaches the screen surface, and is relatively concentrated. In order to disperse the material as soon as possible and s...

AI Technical Summary

Problems solved by technology

Although this equipment solves the problem of different amplitudes at the front and rear ends of the vibrating screen, the vibration trajectory and frequency of the front and rear ends of the entire vibrating screen are the same, and the vibration frequency is also the same, which cannot achieve the fastest dispersion of materials and the best screening. ideal effect

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