Abstract: The position limit fixing device is the key component of the hanging plate in vertical shaft construction, it directly affects the construction quality and progress rate. For other fixing device before, there are different disadvantages. The position limit fixing device of improved rubber wheel makes use of the elastic of polyurethane and the rebound of pressure spring, it avoids the transverse swing of hanging plate in wellbore, and ensures the normal vertical lifting of hanging plate, it is conducive to eliminate safety risks and accelerate the progress rate of shaft sinking.