Rice husking machine for agricultural machinery

Abstract

The invention discloses a rice husking machine for agricultural machinery. The rice husking machine structurally comprises a base, a baffle plate, a motor, a whitening chamber, a feeding hopper and adischarge hole, wherein the baffle plate is welded with the base; the baffle plate functions as an outer protection cover of the motor; the conveyer belt of the motor is in transmission cooperation with the transmission end of the whitening chamber; the discharge hole is formed in the bottom of the whitening chamber; a bran outlet is formed in an adjacent side in a same position of the discharge hole; the feeding hopper is mounted at the top end of the whitening chamber; the whitening chamber is internally provided with a rice screen, a whitening roller and a transmission shaft; the rice screen is arranged at the interface of the whitening chamber and the feeding hopper; and the rice screen cooperates with the vertical upper end of the whitening roller. Both the rice screen and the whitening roller are mounted inside the whitening chamber, the rice screen is suspended with a swinging pull rod through a return spring and can be moved up and down, in addition, the pressure of the whitening chamber can be controlled by adjusting the tension degree of the return spring, the pressure in the whitening chamber can be kept constant, a function of automatic pressure adjustment is achieved,and the situation that the output is reduced as the pressure inside the whitening chamber is too small can be avoided.

Description

technical field [0001] The invention relates to the field of agricultural machinery, in particular to a rice mill for agricultural machinery. Background technique [0002] Rice milling machine is a kind of agricultural processing machinery. It is used to remove the bran layer from brown rice and grind it into white rice. After removing the bran layer in the whitening chamber, it is discharged from the rice outlet, and the rice bran is discharged through the rice sieve holes. The feeding amount of the feeding mechanism, the gap between the whitening chamber and the pressure can be adjusted, and different hole shapes and sizes can be used. The size of the rice sieve is adapted to different needs. The rice outlet is equipped with a pressure door or a gate to control the size of the rice outlet and can be adjusted to obtain different milling precision and flow. Simply put, the rice milling is subject to The mechanical and physical effects are various and intersecting. The long-...

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Problems solved by technology

[0003] According to the device form of the sticky roller spindle of the rice mill, the rice mill is divided into two categories: vertical rice mill and horizontal rice mill. Most of the vertical rice mills are sand white rice mills, which belong to the milling type. The whitening rollers are assembled in series with grinding wheels, and the vertical whitening is a natural vertical falling method. The whitening rollers have been subjected to inter-granular friction and impact for a long time, causing small errors in the verticality of the whitening roller axis. Although the whitening rollers are still completely balanced, but Its center of gravity also deviates from the plumb line to produce unbalanced force, resulting in too low pressure in the whitening chamber, resulting in reduced output

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