Manufacturing method of tractor transmission blank
A manufacturing method and gearbox technology, applied in the direction of manufacturing tools, molding machines, casting molding equipment, etc., can solve the problems of high skill requirements for workers, uncertain shape and size of blanks, and large labor workload for workers, so as to reduce mechanical The effect of reducing processing volume, realizing automatic production, and reducing casting defects
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[0050] In order to further illustrate the technical solution of the present invention, the specific embodiments of the present invention will now be described with reference to the accompanying drawings, such as Figure 1 to Figure 13 According to the design drawings of the tractor gearbox, in this example, the medium-sized tractor gearbox is taken as an example. The tractor gearbox is divided into upper and lower parts, and the outline size of the tractor gearbox is enlarged by 8-12 mm to make the upper part of the tractor gearbox. The upper sand shell upper mold 1 and the upper sand shell lower mold 2, the lower sand shell upper mold 3, the lower sand shell lower mold 4 of the shell mold and the lower sand shell mold are respectively made into the upper sand shell of the tractor gearbox and the tractor gearbox Lower sand shell; combine the upper sand shell of the tractor gearbox and the lower sand shell of the tractor gearbox to complete a complete sand shell with the same sha...
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