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Protection method of hydraulic grabbing beam power supply cable follow-up protection device
According to the protection method of the hydraulic grabbing beam power supply cable follow-up protection device, a variable frequency motor matched with a speed reducer is included, the speed reducer is connected with a slip ring box and a cable reel, an automatic cable arrangement device is connected with the slip ring box, and the slip ring box and the variable frequency motor are electrically connected with a controller. A controller of the protection device calculates a frequency set value matched with the speed of the hoisting mechanism through a fuzzy algorithm, the frequency set value is given to a variable frequency motor of the protection device, the variable frequency motor drives a speed reducer to drag a cable reel to wind a cable at the rotating speed under the given frequency, and the lifting speed of the cable reel is kept consistent with the lifting speed of the hoisting mechanism within the whole hoisting height range. Even if the coiling diameter is changed and tiny speed difference occurs in the position, the cable keeps a loose state all the time as long as the error generated by the speed difference in the whole lifting height range does not exceed the loose amount due to the fact that the loose amount is reserved when the cable begins to wind, the cable only bears the self-gravity, and no extra tension exists. And the situation that the cable is pulled off asynchronously is effectively avoided.
一种液压抓梁供电电缆随动保护装置的保护方法，包括减速机配合的变频电机，减速机与滑环箱和电缆卷盘连接，自动排缆器与滑环箱连接，滑环箱和变频电机与控制器电性连接，采用在电缆随动过程中，保护装置的控制器通过模糊算法计算出与起升机构速度匹配的频率设定值，将该值赋予保护装置的变频电机，变频电机驱动减速机拖动电缆卷盘按给定频率下的转速卷绕电缆，在整个起升高度范围内与起升机构升降速度保持一致，即使在卷径改变和位置出现微小的速度差异，由于电缆在开始缠绕的时候留有松弛量，只要在整个起升高度范围内速度差异产生的误差不超过松弛量，电缆就一直保持松弛状态，只承受自重力，没有额外的拉力，有效避免了不同步拉断电缆的情况。
Protection method of hydraulic grabbing beam power supply cable follow-up protection device
According to the protection method of the hydraulic grabbing beam power supply cable follow-up protection device, a variable frequency motor matched with a speed reducer is included, the speed reducer is connected with a slip ring box and a cable reel, an automatic cable arrangement device is connected with the slip ring box, and the slip ring box and the variable frequency motor are electrically connected with a controller. A controller of the protection device calculates a frequency set value matched with the speed of the hoisting mechanism through a fuzzy algorithm, the frequency set value is given to a variable frequency motor of the protection device, the variable frequency motor drives a speed reducer to drag a cable reel to wind a cable at the rotating speed under the given frequency, and the lifting speed of the cable reel is kept consistent with the lifting speed of the hoisting mechanism within the whole hoisting height range. Even if the coiling diameter is changed and tiny speed difference occurs in the position, the cable keeps a loose state all the time as long as the error generated by the speed difference in the whole lifting height range does not exceed the loose amount due to the fact that the loose amount is reserved when the cable begins to wind, the cable only bears the self-gravity, and no extra tension exists. And the situation that the cable is pulled off asynchronously is effectively avoided.
一种液压抓梁供电电缆随动保护装置的保护方法，包括减速机配合的变频电机，减速机与滑环箱和电缆卷盘连接，自动排缆器与滑环箱连接，滑环箱和变频电机与控制器电性连接，采用在电缆随动过程中，保护装置的控制器通过模糊算法计算出与起升机构速度匹配的频率设定值，将该值赋予保护装置的变频电机，变频电机驱动减速机拖动电缆卷盘按给定频率下的转速卷绕电缆，在整个起升高度范围内与起升机构升降速度保持一致，即使在卷径改变和位置出现微小的速度差异，由于电缆在开始缠绕的时候留有松弛量，只要在整个起升高度范围内速度差异产生的误差不超过松弛量，电缆就一直保持松弛状态，只承受自重力，没有额外的拉力，有效避免了不同步拉断电缆的情况。
Protection method of hydraulic grabbing beam power supply cable follow-up protection device
液压抓梁供电电缆随动保护装置的保护方法
ZHANG ZHAOLI (author) / LIU WENZHONG (author) / BAO TANGWEI (author) / SHI JIAORUI (author) / LI MUSHUN (author) / KIM RAN (author) / YUE XIANGXIANG (author) / WU SHIHU (author) / FAN XIAOBO (author) / CHEN CHU (author)
2023-08-08
Patent
Electronic Resource
Chinese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
/
G05B
Steuer- oder Regelsysteme allgemein
,
CONTROL OR REGULATING SYSTEMS IN GENERAL
/
H02K
Dynamoelektrische Maschinen
,
DYNAMO-ELECTRIC MACHINES
/
H02P
CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS
,
Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern
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