Auger lifting self-discharging grass thresher

Abstract

The invention discloses an auger-lifted automatic straw discharge thresher with high threshing efficiency. The thresher comprises a frame, a grain hopper on the upper part of the frame, and a roller in the grain hopper, wherein a plurality of roller teeth which are spirally arranged in a staggered way are arranged on the roller, and the adjacent front, back, left and right roller teeth and the section of the roller form an acute angle; a straw discharge sieve which is controlled by a vibration cam is arranged at the end of the grain hopper, and sieve nails which are arranged in an acute angle along a vibration direction of the straw discharge sieve are correspondingly arranged on sieve pores of the straw discharge sieve; the adjacent front and back sieve pores on the straw discharge sieve are arranged in a staggered way, and the distance between the adjacent left and right sieve pores is shorter than the width of the sieve nail corresponding to the sieve pore behind the adjacent left and right sieve pores; an auger lifting device is arranged below the grain hopper, and comprises augers of which central axes are perpendicular to each other, and the two augers discharge grains from a grain outlet on the upper part of the lower auger through the transfer between a gear pair and a bevel gear pair; and a bag opening support is also arranged at the end of the grain outlet, and a bag suspension hook is arranged on the bag opening support.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery manufacturing, and in particular relates to an auger-lifting self-discharging grass thresher. Background technique [0002] The threshing machine is one of the indispensable mechanical equipment in agricultural production, and the working performance of the threshing machine directly affects the threshing efficiency. In order to solve the situation that it is difficult to transport the thresher to the field due to the mountainous geographical environment and the aging of the rural labor force, many portable semi-automatic threshers are currently on the market. However, most threshers still have some problems in actual operation. For example, the teeth on the traditional threshing rollers are arranged in regular rows, and the rice is threshed by combing the teeth in the same direction against the rice. The same part of the grain is combed, so that the threshing efficiency is low du...

AI Technical Summary

Problems solved by technology

However, most threshers still have some problems in actual operation

For example, the teeth on the traditional threshing rollers are arranged in regular rows, and the rice is threshed by combing the teeth in the same direction against the rice. The same part of the grain is combed, so that the threshing efficiency is low during threshing, the threshing is not clean, and the impurity content is too high; the traditional thresher needs to set the grain guide plate at the position corresponding to the roller on the frame to remove the fallen straw. Outside the threshing machine, the straw cannot be automatically discharged; the weeds produced during the roller threshing need to be cleaned manually, and the manual operation before the grass discharge trough is very dusty, and inhalation of the lungs is harmful to human health, and when cleaning the weeds, Part of the grain is mixed in the weeds and cleaned up, wasting food; the grain lifter is easy to block during the final threshing, especially when operating in dewy weather, the weight of wet rice ears is heavy, and the grain lifter is difficult or even impossible to lift the grain. As a result, the ears of rice are blocked in the lifter, which affects the normal operation of the thresher, and the breakage rate of the rice is extremely high due to the lifter

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