| 螺杆式启闭机的优点 |
| 添加时间：2020/8/3 13:42:35 浏览次数： |
| 螺杆式启闭机具有结构简单、安装方便、价格低廉的优点，广泛用于灌区各级渠道上的涵闸和重点引水工程的闸门启闭，但是，当前使用的一些螺杆启闭机没有针对顶闸事故的有效保护措施，即便在手电两用启闭机上安装了限位开关，它也只能起限位作用。在启闭机运行过程中稍有不慎将会发生压弯螺杆、顶碎启闭机端盖，顶断启用机梁使钢筋混凝土梁上缘开裂破坏，以及启闭机台(梁)位移、旋转、倾复，甚至造成职员伤亡，电动启闭机还会引起电动机过载而烧毁电机，严重影响工程的安全运用，威胁着操纵职员的人身安全。 Screw hoist has the advantages of simple structure, convenient installation and low price. It is widely used in culvert gate of irrigation area at all levels and the gate of key water diversion project. However, some screw hoists currently used do not have effective protection measures against the top gate accident, that is, the limit switch is installed on the manual and electric dual-purpose hoist, which can only play a limiting role. Slight carelessness in the operation of the hoist will result in bending the screw, breaking the end cover of the hoist, breaking the upper edge of the reinforced concrete beam by breaking the machine beam, as well as the displacement, rotation and overturning of the hoist platform (beam), even causing casualties. The electric hoist will also lead to overload of the motor and burn the motor, which will seriously affect the safe use of the project and threaten the operation of the staff Personal safety. |
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