Automatic safety device of general purpose overhead crane electrical accident

• Main Authors: KE LIWEI, LIANG BIN, DENG JINGYI, LI RUNXIONG, YE HUIYANG
• Format: Patent
• Language: Chinese; English
• Published: 31.07.2018
• Subjects: CRANES; HAULING; HOISTING; LIFTING; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES; PERFORMING OPERATIONS; TRANSPORTING

The utility model discloses an automatic safety device of general purpose overhead crane electrical accident, close and the minion pass including first contactor, second contactor, third contactor, fourth contactor, first relay, second relay, time relay, first switch, second switch, third switch, fourth switch, the 5th switch, sixmo. The utility model discloses an increase first relay, second relay and time relay on present control logic's basis, utilize the combination of relay and contactor to realize the automatic protection to the understanding and considerate condition of contactor misconnection to improve equipment's factor of safety realizes the automatic protection to the general purpose overhead crane electrical accident. The utility model relates to a but automatic safety deviceof general purpose overhead crane electrical accident wide application in mechanical control field. 本实用新型公开了种通用桥式起重机电气故障的自动保护装置，包括有第接触器、第二接触器、第三接触器、第四接触器、第继电器、第二继电器、时间继电器、第开关、第二开关、第三开关、第四开关、第五开关、第六开关和第七开关。本实用新型通过在现有控制逻辑的基础上增加