Material rolling device for online grain moisture meter

Abstract

The invention relates to a material rolling device for an online grain moisture meter, and belongs to the technical field of agricultural testing devices. The device comprises a shell with a feeding hole, wherein a material guide block below the feeding hole is fixed in the shell; coaxial round installation holes and coaxial kidney-shaped installation holes are formed at two sides of the shell under the material guide block respectively; the round installation holes and the kidney-shaped installation holes in two sides support corresponding transmission shafts through front and back rubber damping sleeves respectively; the two transmission shafts are provided with locating rolling wheels and floating rolling wheels between the front rubber damping sleeve and the back rubber damping sleeve; and one side, far away from a fixing rolling wheel, of each floating rolling wheel is provided with an elastic part for pressing the fixing rolling wheel. According to the material rolling device for the online grain moisture meter, an ''adhesion'' phenomenon is effectively avoided while the rolling stability is significantly improved and a ''jump'' phenomenon is removed; and shifting of the floating rolling wheels on a kidney-shaped installation seat can be overcome by increasing rolling force when a hard foreign matter passes through the rolling wheels, and thus the damage to the rolling wheels is avoided and the foreign matter is timely discharged.

Description

technical field [0001] The invention relates to a material rolling device for an online grain moisture meter, in particular to a material rolling device for a resistive online grain moisture meter, belonging to the technical field of agricultural detection devices. Background technique [0002] Resistive online grain moisture detection requires crushing of the grain. As far as the applicant knows, for a long time, the following problems have not been properly solved in the rolling device or mechanism similar to the moisture meter: [0003] 1) Jumping kernels——During the rolling process of a single grain, if the loading extrusion force is not stable enough or the impact force is too large, it will cause the grains to crack violently, resulting in jumping kernels. As a result, the reliability and success rate of rolling will decrease, and then Affect the detection data of the moisture meter; [0004] 2) Sticking - the rolling force of the rolling wheel on the grain should be...

AI Technical Summary

Problems solved by technology

[0003] 1) Jumping kernels——During the rolling process of a single grain, if the loading extrusion force is not stable enough or the impact force is too large, it will cause the grains to crack violently, resulting in jumping kernels. As a result, the reliability and success rate of rolling will decrease, and then Affect the detection data of the moisture meter;

[0004] 2) Sticking——The rolling force of the rolling wheel on the grain should be moderate, because after the rolling force reaches a certain value, if it continues to increase, it will not only make no sense for the sampling of the moisture meter, but will increase energy consumption; General assembly leads to sticking of the grain on the roller, which adversely affects subsequent sampling of the resistance value of the grain;

[0005] 3) Damage - the online moisture detection instrument for grain is usually installed on the material hoist of the dryer, and the working environment is relatively harsh. In addition to grain, the particles entering the feed port of the moisture meter may also be foreign matter such as stones and metal debris. When the roller crushes such hard foreign matter, it cannot be discharged as soon as possible without damaging the rolling mechanism.

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