Multilayer separating sieve for peanut picker

Abstract

The invention discloses a multilayer separating sieve for a peanut picker. The multilayer separating sieve comprises an upper sieve plate and a lower sieve plate. The inclined lower sieve plate with a higher rear end and a lower front end is arranged below the left end of the upper sieve plate. Holes through which peanuts cannot go are evenly distributed on the lower sieve plate. A wedge-wire sieve is arranged under the middle part of the upper sieve plate. The wedge-wire sieve consists of steel wires which are evenly and longitudinally distributed. The right ends of the steel wires of the wedge-wire sieve are provided with downward bends. The bending angle of the bends is less than 90 degree. An inclined sliding slot with a higher end and a lower end is arranged under the wedge-wire sieve. An inclined chute with a higher front end and a lower rear end is arranged under the right end of the wedge-wire sieve. The chute is in butt joint with a conveyor belt of the peanut picker. The upper sieve plate, the lower sieve plate, the sliding slot, the wedge-wire sieve and the chute are respectively connected with a sieve rack. The sieve rack is driven by a crankshaft of the peanut picker.The multilayer separating sieve has the advantages of operation without stopping, high efficiency and low dirt percentage of sieved peanuts.

Description

Technical field: [0001] The invention relates to a fruit picker, in particular to a multi-layer sorting screen for a peanut picker. Background technique: [0002] The sorting screens of existing peanut picking machines are mostly double-layer sorting screens, and there are also single-layer sorting screens. Although the latter has a simple structure, it is rarely used due to poor sorting effects. The upper sieve plate of the double-layer sorting screen The top is evenly distributed with long holes similar to the shape of peanuts, and the lower sieve is composed of steel wires distributed at intervals to form a slotted sieve. The disadvantages of this double-layer sorting screen: First, after the straw leaks from the long hole of the upper screen, it will accumulate on the steel wire slotted screen of the lower layer over time and cause blockage, which must be stopped and cleaned, which will affect the processing; Although the operation can be carried out before it is blocke...

AI Technical Summary

Problems solved by technology

[0002] The sorting screens of existing peanut picking machines are mostly double-layer sorting screens, and there are also single-layer sorting screens. Although the latter has a simple structure, it is rarely used due to poor sorting effects. The upper sieve plate of the double-layer sorting screen The top is evenly distributed with long holes similar to the shape of peanuts, and the lower sieve is composed of steel wires distributed at intervals to form a slotted sieve.

The disadvantages of this double-layer sorting screen: First, after the straw leaks from the long hole of the upper screen, it will accumulate on the steel wire slotted screen of the lower layer over time and cause blockage, which must be stopped and cleaned, which will affect the processing; Although the operation can be carried out before it is blocked, the peanuts will be mixed with straw at this time

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