2019 New Rice Thresher


2019-10-30

Introducing a new rice thresher

The utility model belongs to agricultural machinery, in particular to a rice thresher.
The rice thresher, which is widely used nowadays, is mainly used for manual feeding, that is, it is unsafe, low inefficiency, or mechanically clamped, but the reliability is poor, the threshing and sorting work is carried out step by step, the single drum is running, the working procedure is complicated, and the work is complicated. The net rate is not reliable.
The purpose of the utility model is to provide a rice thresher that is automatically fed, threshed, screened, air-selected and bagged once.

Rice thresher

Structure of new rice thresher

The purpose of the utility model is to realize the machine body. The shroud, the upper drum, the feeding conveyor belt, the rest table, the lower drum, the grass fork, the cutter, the sieve eccentric wheel, the fixed sieve, the sieve, the lifting pulley , hoist, drum drive box, upper roller pulley, conveyor belt gearbox, intermediate shaft, prime mover pulley, universal joint shaft, reinforcing rod, conveyor belt drive wheel, lower roller pulley, checkbox, observation door, hopper hatch, fan air outlet, an air inlet, air distribution door, and grain outlet are fixed on the upper part of the body.

The lower bearing seat supports the upper roller and the lower roller. The cover covered on the whole body, the rear of the body, and the lower cover there is a checkbox and an observation door. On the body, a drum transmission box for driving the upper drum is fixed by bolts on the back of the upper drum and is equipped with a tensioning device, which is arranged in front of the body and is arranged at 4° 30′ in front and rear. 2 E-type V-belts, conveyor belt brackets, springs, V-belt pulleys. Feed conveyors consisting of press rolls, fixed on the machine body, resting on the platform, behind the body through the grass drain.

On the shelf Vertically, the U-shaped reinforcing rod is fixed in front of the machine body. And the upper roller pulley, the lower roller pulley and the conveyor gearbox for transmitting the belt power are installed in the lower part of the platform, and the output end of the conveyor gearbox is loaded with two universal coupling shafts.

Cooperating with the belt driving wheel, the lower roller pulley is connected with the prime mover pulley. And the suction shaft, the hoist pulley, and the lower roller pulley are fixed on the intermediate shaft of the lower drum. The grass fork and the cutter are welded on the intermediate shaft, and the fan on the suction fan the air outlet, the air inlet and the air damper of the fan. The hoist pulley connecting the hoist, the lifting machine is equipped with a drain outlet, some fixed sieves under the lower drum. A partition above the fixed sieve, and an alternative sieve composed of the bracket and the screen It is hung on the body and connected to the lower roller pulley and the sieve eccentric.

The working process of the new rice thresher

The utility model outputs power from a power source, and the lower drum and the fan impeller on the same intermediate shaft are rotated by the prime mover pulley. And the lower drum pulley is rotated by the upper drum drive to realize the reverse rotation of the double drum to make the rice More threshing and higher efficiency. At the same time, the lower drum rotates, the belt drive wheel, the conveyor belt gearbox, and the universal joint shaft drive the feed conveyor to realize the automatic feeding of the rice.

By feeding the conveyor belt and the lower drum at an angle of 4°30′. During the gradual feeding process, the full contact between the rice ear and the drum is ensured, so that no rice grains on the rice ear can be removed due to poor contact. When the lower drum rotates, the lower eccentric pulley is driven by the lower eccentric pulley, and the sieves are alternately moved to alternately remove the variables in the rice grains leaked through the fixed sieve. Due to the movement of the alternating sieve, the rice grains can be moved toward the fan. When the rice grains pass under the air suction port of the fan, the impurities such as grasses in the rice grains are sucked away and removed. And the rice grains that pass through the air selection continue to move forward. Into the funnel of the hoist, the hoisting machine completes the bagging task.

The utility model adopts the above structure, and has the functions of automatic feeding, threshing, screening, air selection, bagging, etc.. So that the rice threshing process is completed once, saving a large amount of artificial cleaning work, netting, clearing, high efficiency, structure Reasonable, good craftsmanship, replacement of operation, maintenance, safe and reliable use.

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