Shelling machinery and shelling method capable of reducing surface damage of walnut kernels

Abstract

The invention provides shelling machinery and a shelling method capable of reducing surface damage of walnut kernels, and relates to the field of agricultural machinery. The shelling machinery comprises a machine frame, a feed opening, a main shelling roller, and an auxiliary shelling roller group, wherein the auxiliary shelling roller group comprises a first auxiliary shelling roller group and a second auxiliary shelling group which are arranged on two sides of the main shelling roller side by side; either one of the first auxiliary shelling group and the second auxiliary shelling group comprises six auxiliary shelling rollers which are sequentially arrayed from top to bottom; the spaces of the six auxiliary shell rollers in the first auxiliary shelling group and the main shelling roller are in step changes; and the outer surface of the main shelling roller, the outer surface of each auxiliary shelling roller in the first auxiliary shelling roller group, and the outer surface of each auxiliary shelling roller in the second auxiliary shelling group are all subjected to rubber coating treatment. The shelling machinery and the shelling method disclosed by the invention have the advantages that the surface damage of the walnut kernels in a mechanized shelling process can be effectively reduced, the processing efficiency is high and the operation is facilitated.

Description

technical field [0001] The invention belongs to the field of agricultural machinery and relates to a shell breaking machine and a shell breaking method, in particular to a shell breaking machine and a shell breaking method which can reduce the surface damage of walnut kernels. Background technique [0002] At present, most extruding walnut shelling machines are only aimed at improving the technical indicators such as high kernel rate and productivity. For example, the utility model with application number 201320198513.9 discloses a variable gap multi-roller extruding walnut shelling machine. The machine is mainly composed of A main shell-breaking roller and multiple auxiliary shell-breaking rollers form an extrusion device, and the extrusion distance between each auxiliary shell-breaking roller and the main shell-breaking roller can be adjusted. The discontinuous multi-station extrusion shell breaking mechanism formed by the main shell breaking roller and the auxiliary shell...

AI Technical Summary

Problems solved by technology

In the process of mechanized shell breaking of walnuts, since the extrusion distance of the extrusion shell breaking machine is fixed, and the gap between the shells and kernels of each walnut is quite different, in the process of squeezing and breaking the shells, the surface of the walnut kernels will be damaged to varying degrees. Damage, the surface damage of walnut kernels means the lack of a complete coating on the surface of walnut kernels. Surface damage not only affects the grade and price of walnut kernels, but also causes economic losses; it also leads to oil loss, mildew and sticky dust during storage, which affects the taste.

[0003] Although the existing walnut shelling equipment can effectively improve the production efficiency and crush the hard shell of the walnut, it cannot effectively guarantee the integrity of the walnut kernel surface. The main factors affecting the surface damage during the walnut shelling process are the extrusion distance, water content rate, extrusion roller surface hardness, fully consider the influencing factors, so as to reduce the surface damage of walnut kernel in terms of process and performance is an urgent problem to be solved

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