Asynchronous air-sweeping type flexible bionic retractable standing grain moving device

Abstract

The invention discloses an asynchronous air-sweeping type flexible bionic retractable standing grain moving device. According to the device, a machine frame is located outside, bionic standing grain moving mechanisms are evenly distributed outside the machine frame in the radial direction, a fan mechanism is located inside the machine frame, a transmission mechanism is located at the left end of the machine frame, threaded holes are distributed in a base of the machine frame, each bionic standing grain moving mechanism is formed by a positioning bolt, a spring and a bionic standing grain moving plate, stretching and retracting of the bionic standing grain moving mechanisms are achieved through the springs, an air inlet is formed in front of a fan cover, an air outlet is formed behind the fan cover, a fan belt wheel is fixed on the left half axle through a flat key, a standing grain moving belt wheel is mounted on the outer ring of a bearing and is connected with a left baffle through a long bolt, and then the bionic standing grain moving mechanisms and the fan mechanism can rotate coaxially at different speeds. The device has the advantages that stand grain moving contact impact is small, the stand grain moving height and feeding depth are continuously adjustable, loss of grains of crops is small during stand grain moving, damage to the surfaces of the grains of crops is small, the structure is simple and compact, and overall efficiency of stand grain moving operation is high.

Description

technical field [0001] The invention relates to an agricultural machine, in particular to an asynchronous air-blown flexible bionic telescopic reeling device. Background technique [0002] The reeling device is widely used in agricultural harvesting machinery. During the harvesting process of wheat, rice, soybeans and other crops, the reeling device needs to push the crops to the cutter or feeding port, cut off the crop stems or cut the ears of the crops and pick the ears. . The traditional reeling device is mainly composed of a reeling board, spokes, hubs, and reel shaft. The crops are pushed to the rear through the rotation of the reeling device. Due to the high hardness of the reeling board, a large amount of crop seed is splashed and lost during high-speed rotation. In the semi-feed harvesting machine, the radial operating length of the reeling board is fixed, so that the reeling height and the feeding depth cannot reach the maximum value at the same time. When the reel...

AI Technical Summary

Problems solved by technology

The traditional reeling device is mainly composed of a reeling board, spokes, hubs, and reel shaft. The crops are pushed to the rear through the rotation of the reeling device. Due to the high hardness of the reeling board, a large amount of crop seed is splashed and lost during high-speed rotation.

In the semi-feed harvesting machine, the radial operating length of the reeling board is fixed, so that the reeling height and the feeding depth cannot reach the maximum value at the same time. When the reeling height of the reeling board increases, the reeling needs to be increased The spoke length of the device, on the one hand, increases the size of the reeling device, leading to an increase in manufacturing and processing costs, and on the other hand, causes interference between the reeling plate and the feeding port; and reducing the degree of spokes will reduce the height of the reeling operation, resulting in The range of grain is reduced, the direct impact on the ear head of the crop is large, and the loss of grain splash is large. At the same time, the ear head cannot completely enter the feeding inlet, resulting in incomplete ear picking and increased loss of ear picking omission.

[0003] In order to solve the serious problem of grain impact and splash loss, foreign scholars installed a jet airflow device on the cutter in the 1970s, and used a high-speed airflow with a speed of 10m / s to transport it from the front and bottom of the cutter to the rear of the header. , the test shows that the airflow sprayed at 150mm in front of the cutter can reduce the harvest loss by 35% when used on a standard header, but the device needs to be equipped with a blower, which will increase the power consumption of the whole machine and increase the manufacturing cost

In order to solve the contradictory problem of reel height and feeding height, domestic scholars have adopted the method of adding a worm gear gearbox to coordinate with the cam structure to realize the adjustment of the working height of the reel, but the variation range of the height of the reel is only the minimum value and The two values ​​of the highest value cannot realize the continuous change of the reel height from the lowest value to the highest value, which will cause severe shaking of the crop stem and splash the seeds

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