Organizational Structure of Model 125 Large Rice And Wheat Thresher


2019-07-12

After harvesting the wheat, it needs to the thresher. This is the process of removing the shell and removing the grain. The traditional way of doing this is to continually beat the wheat and the shell-scattering instruments with a tool called “link”. Then there is the “Yang” Valley. It is necessary to throw the grain out into the air so that the wind blows away the light. The unwanted part of the millet and the “husk”, leaving only the grain that falls behind. This is a tough, exhausting job in the airflow cleaning thresher. And it takes a long time. It takes about 5 days for the 4,000 square meters of wheat to thresher with hand.

Scottish inventor James Merkel and his son Andrew changed the situation. After a long period of hard work, James finally developed a machine in the late 18th century. Which was equipped with a wooden frame that turned on the drum. A narrow belt is attached to the wooden frame. And as it rotates, airflow is formed to blow away the outer casing of the wheat. Andrew also added a flapping assembly to the machine to loosen the husk.

The Merkel thresher can be driven by any power source that is easy to find. They chose to drive the first machine with a horse, but soon they created a new machine powered by water and steam. The thresher is particularly successful in the United States. Where labor is scarce and agriculture is large. The thresher is not greeted in the UK. Manual threshing provides agricultural workers with opportunities for winter employment. Thresher threatens many agricultural workers and causes them to lose their jobs. According to the equipment, Aike Machinery has developed a new rice wheat thresher equipment. China diesel motor multi-crop paddy wheat rice thresher 125. Let me introduce the organization of the device.

1. Transmission line, continuously variable transmission

In order to make the cutter head and the six feed rollers work normally. The machine has carefully designed the transmission line and the V-belt continuously variable transmission. According to the threshing productivity requirement, the cutter head has multiple speeds. But the transmission route is relatively simple. It consists of two stages of transmission. The first stage is steplessly variable by the pulley. The stepless speed change pulley is directly mounted on the motor shaft. The passive speed change pulley is installed on the other shaft, the other shaft is equipped with a synchronous toothed belt. The wheel drives the timing pulley on the cutter head to rotate by the toothed belt. And the screw nut is fixed on the synchronous pulley. And the rotating bolt pulley can move axially to make the pulley gap become larger or smaller. And the cutter wheel speed Adjustable, the transmission ratio is around 1:1.5.

2. Two-speed shifting is equipped with a V-belt on the motor.

First and second transmissions are all V-belt wheels, the third stage is a worm drive. The worm has three sets of motorized threshing maneuvers and the opposite worm gears. The worm wheel is connected with the conveyor roller. During operation, the worm drives the worm wheel to rotate. The gripping and conveying function, a set of conveying rollers clamp the conveying corn cob. The whole transmission route has five-stage transmission. Because the design considers the compact structure of the whole machine. A relatively new V-belt continuously variable transmission is adopted. The worm gear and the worm drive are designed and calculated several times to ensure the middle spacing of the worm wheel and the worm. And the strength of the worm wheel, the worm wheel uses a negative displacement coefficient.

3. Unique tool and cutter

The tool is a key component of the entire 125 large rice and wheat thresher. Its shape and material selection are tight. And the tool is welded by an L-shaped tool holder and a sword-shaped blade. From the aspect of the strength of the tool, the blade should be made of 65Mn material. And heat-treated after processing to make the appearance hardness reach HRC50-60. However, because the blade is cut off corn kernels, the 65Mn material is easy to rust. And the sanitary quality is not up to the requirement. Therefore, stainless steel is used as usual. Although the hardness of the blade is not ideal, the cutting of the corn kernel should have no problem. In order to enable the tool to cut corn kernels of different diameters. The tool has a sliding distance on the cutter head during operation. In addition to the installation of the tool, the cutter head needs to be rotated on the fixed sleeve to drive the cutter to cut the movement. In order to make the cutter head compact, the cutter head is equipped with a synchronous toothed belt pulley. And the synchronous toothed belt pulley is provided with a plastic bearing, and the pulley and the plastic bearing are screwed. During operation, the material of polyvinyl fluoride is rotated on the sleeve. And the vegetable oil is dripped with a needle-type oil cup for lubrication.

4. Conveying feed assembly

In order to ensure the normal feeding and conveying of the cob, the machine has designed a unique working mechanism. The feeding assembly consists of a worm. Three sets of opposite worm gears, roller support, shaft, profiled rubber roller, plastic toothed roller and the like. The machine starts, the rubber roller and the plastic roller with two thick and center tapered are rotated. At this time, the corn cob is fed. And the rubber roller conveys the clamp forward to the cutter. After cutting, the corn cob is conveyed by the rotating plastic roller. To the waste bin. In order to adapt to the feeding and feeding of different diameter corn cobs. A tension spring is arranged on the drum, and the spring can make the drum to be displaced at an appropriate angle. When feeding the corn cob, the mechanism can use because of the thrust of the hand and the traction force of the rubber roller. According to the size of the cob, it is actively adjusted within a certain range.

5. Machine structure and material selection

High-efficiency paddy wheat rice thresher machine 125 designed to simple and compact. The shape is beautiful, the overall shape of the machine is 610X620X1120mm. And the feeding height and safety are also fully considered. When working, the running part of the machine is covered by the cover. The feeding inlet is strictly controlled in size, and the adult’s hand cannot enter. Ensuring safety when feeding the corn. Most of the materials used in the machine are made of stainless steel. In order to reduce the weight of the machine and reduce the production cost. The frame part is welded by the stainless steel plate. Although the diameters of the two transmission shafts are small. The key grooves are not opened on the shaft. Only the platform is processed, and the pulleys are fixed by the tightening bolts. And the strength of the shaft can ensure.

Aike Machinery is a professional model 125 large rice and wheat thresher manufacturers. Our equipment is advanced in technology and developed by professional technicians. Welcome everyone to come and buy.

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