The invention discloses an escalator drive sprocket and a manufacture method thereof. The escalator drive sprocket comprises a wheel spoke and a tooth ring, the tooth ring sleeves the outer side of the wheel spoke, and the wheel spoke is connected and fixed with the tooth ring through intermittent welding. Compared with the drive sprocket in the prior art which is obtained through casting or cutting, and in which the wheel spoke and the tooth ring are connected into one body, the escalator drive sprocket provided by the invention is advantaged in that the wheel spoke and the tooth ring can be made of steel materials in different kinds, and are separately manufactured through an existing relatively-mature technology. According to invention, shrinkage cavity and sand hole defects, of a casting type drive sprocket, caused by integral body casting can be prevented, defects of large machining amount, high cost and the like, of a cutting type drive sprocket, caused by integral body cutting can be prevented, and therefore the escalator drive sprocket is high in product molding ratio, low in cost and low in machining amount.
Escalator drive sprocket and manufacture method thereof
2015-10-21
Patent
Electronic Resource
English
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