Grinding wheel protective cover of grinding machine with function of power failure when opening door

• Main Authors: JIANG GUIZHEN, YANG LELI, SHI JIE
• Format: Patent
• Language: Chinese; English
• Published: 08.06.2011
• Subjects: DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS; GRINDING; MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; PERFORMING OPERATIONS; POLISHING; TRANSPORTING

The utility model discloses a grinding wheel protective cover of a grinding machine with a function of power failure when opening a door, which is suitable for various types of surface-grinding machines, internal and external grinding machines and the like in the field of machinery manufacture. A power failure device provided by the utility model is a stretching type stroke switch installed on a grinding wheel cover body, and a movable pull rod of the stroke switch is connected to the backside of a grinding wheel cover door. When the grinding wheel cover door is opened, the movable pull rod of the stroke switch is stretched and is in an open-circuit state, and hydraulic starting, grinding head starting, water pump starting and servo system starting which are relative to the grinding wheel operation of the grinding machine are stopped. The grinding wheel protective cover has a simple structure as well as safe and reliable performance and is convenient to use, the safety protection problem that an operator open