How to process the sprocket
In the process of conventional sprocket processing, the root circle is firstly used as the basis, and the center of the circle is found, and at the same time, this is used as the center of the inner and outer circles and the end face of the calibration turning process.
In the process of conventional sprocket processing, the root circle is firstly used as the basis, and the center of the circle is found, and at the same time, this is used as the center of the inner and outer circles and the end face of the calibration turning process. Then draw the keyway dimension line and insert the keyway. The center of the wheel and the center of the tooth shape produced after processing are often inconsistent, and the mechanical operation will be more unstable, and there will be no more obvious marks on the sprocket casting blank, resulting in discrepancies between the orientation of the keyway and the actual position. able to unify each other.
In large and medium-sized mechanical equipment, the sprocket keyway range is assembled in two opposite directions on the left and right. After assembly, the situation of wrong teeth is more serious. During the operation stage, the sprocket and chain will bear forces from various aspects, and the uneven force is very obvious. This will Seriously affect the service life of the sprocket. Such problems can be improved by using the underline method. Casting positioning marks also need to be added to the sprocket blank, and the marked position should be consistent with the actual street position of the keyway, and not in the processed position. The specific location can be delineated by the designer. Good luck marks are in the same position on the same product. In this way, the error can be reduced as much as possible. Before scribing, it is necessary to use a wooden plug or a thin copper plate to block the position of the center hole of the sprocket blank to avoid loosening, and it needs to be flush with the cross section of the sprocket casting mark side.
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