| 摘要 |
PURPOSE: A pin removing device of a front hanger for a tapping machine is provided to easily force a fixing pin to separate because of an increased contact area between a base part and a front hanger. CONSTITUTION: A pin removing device of a front hanger for a tapping machine comprises a base part(110), a cylinder part(120), a piston part(130), a stem part(140), and a hydraulic generator(150). A fixing pin(310) of a front hanger(300) is located inside a hollow(111) of the base part. The cylinder part is installed opposite to the fixing pin in the base part. At least a portion of the piston part is inserted in a hydraulic chamber of the cylinder part, and the piston part is moved in the direction where the fixing pin is pulled out by hydraulic pressure. One end of the stem part is coupled through the piston part and the cylinder part to the head of the fixing pin, and the stem part has a pressing portion(141) for receiving a hydraulic force from the piston. The hydraulic generator is connected to the cylinder part and provides hydraulic pressure.
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