The invention discloses a tower crane as well as an anti-top-rushing protection method, system and device thereof. The anti-top-rushing protection method of the tower crane comprises the following steps: acquiring counting information of an encoder of a hoisting mechanism; judging whether a deceleration limiting condition is met or not according to the counting information, and if yes, controlling a motor to decelerate through a frequency converter of the hoisting mechanism; and judging whether a limit parking condition is met or not according to the counting information, and if the limit parking condition is met, controlling the motor to stop through a frequency converter. According to the anti-top-rushing protection method for the tower crane, the hoisting mechanism is used for carrying out anti-top-rushing protection on the encoder for closed-loop speed control, so that the reliability of the anti-top-rushing protection is improved.
本发明公开了一种塔式起重机及其防冲顶保护方法、系统和装置,塔式起重机的防冲顶保护方法包括:获取起升机构的编码器的计数信息;根据所述计数信息判断是否满足减速限位条件,若满足,则通过所述起升机构的变频器控制电机减速;根据所述计数信息判断是否满足极限停车条件,若满足,则通过所述变频器控制所述电机停机。上述塔式起重机的防冲顶保护方法利用起升机构用于闭环速度控制的编码器进行防冲顶保护,提高了防冲顶保护的可靠性。
Tower crane as well as anti-top-rushing protection method, system and device thereof
一种塔式起重机及其防冲顶保护方法、系统和装置
2021-11-23
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
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