Reasonably adjust the straw chopper of the corn harvester

As an accessory product to the corn harvester, the chopper can smash the stalks thrown from the drafter or the separate drums. With the further implementation of China's environmental protection policy, many regions have introduced regulations prohibiting incineration of stems on the spot. As a result, people are increasingly demanding a Walking Tractor Single-row Corn harvester. The chopper is one of the most powerful components in the corn harvester, and the factors affecting the quality of work are also multifaceted. Poor shape design of the blade will increase the power consumption by a factor of two, causing undesirable effects such as vibration; Another function of the blade is to ensure the quality of the material shredding. Therefore, from the design point of view, the layout of the blade on the chopper roller and the shape of the blade, and the interface method should be considered first. Due to the blade type and the chopper transition interface, the conventional chopping device often exhibits uneven length of chopping, easy clogging, and the like, resulting in damage to the coherent parts of the harvester. Today, Aike Machinery experts explain the structure, working principle and adjustment method of the China Walking Tractor Single-row Corn harvester: The harvester stalk chopper is mainly composed of a chopper roller, a knife holder, a moving blade and a fixed blade to form a chopper body, and then fixed on the cutter housing, and then the casing is connected with the main body. On the chopper housing, a material baffle is used to connect to the main unit.

1. Roller and knife holder The chopper roller is made of φ121X5 seamless steel tube and is welded at both ends. The movable knife seat is formed by 5 thick plates and welded to the chopper roller in strict spiral arrangement to ensure uniform load and small fluctuation during operation of the moving blade, thereby reducing the vibration of the machine. The fixed knife frame is composed of a long hole uniformly processed along the length of the chopper and a fixed knife beam on the bottom plate, and the fixed blade is fixed on the fixed knife beam through the long hole, and the angle of the fixed blade can be obtained according to different crops and needs Different stems are chopped length to adjust.
2. Blade The moving blade is applied on the chopper roller with a spiral configuration and a fixed blade. During the work, the cutter roller rotates at a high speed, and the friction between the stem and the blade is large. In order to reduce the wear of the blade, the blade is fully considered. Material and shape, the material is 50CrVa, the surface treatment hardness is HRC52～56 and the shape tolerance request is increased, and the contact area of the fixed blade is reduced by a part. This can reduce the power consumption of the chopper and overcome the clogging of the chopper due to excessive friction between the chopper blade and the stem.
3. Material deflector A material deflector is installed at the inlet of the boom-type chopper and the outlet of the main material, and the bottom is hingedly connected with the chopper housing, and the upper part is bolted to the side wall of the machine, so that the material discharged from the drafter or the separate drum is smooth. Into the chopper, in order to make the stalk not form a blockage in the deflector during the process of entering the chopper, the design has carried out many experiments on the natural end angle of the stalk landing process on the iron plate. The installed material deflector can completely guide the material. When the harvester does not need to pulverize the stalk, the material baffle fixing bolt can be loosened and re-fixed on the rear tail cover of the machine, and the material falls directly under the action of the baffle without the chopper. On the ground. This preserves the complete crop stalk without disassembling the chopper. www.taakthreshermachine.com/tractor-sin…

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