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桥式起重机讲解起重机起重特性及高度限位装置

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设置在操纵室内前侧下墙板上,该表列出了各种臂长和各种工作幅度下的额定起重量和起重高度,以便操作时查阅。起重作业时,切不可超过表中规定的数值。为了确保起重作业安全可靠,起重机装有较完善的安全装置,以便在意外的情况下,起到保护电动葫芦机件或提醒操作人员注意,从而起到安全保护作用。

Set in the control room side wall, the table lists the various length and various working range under the rated lifting weight and lifting height, access to operation. The lifting operation, must not exceed the values specified in the table. In order to ensure the safety of hoisting operation reliable, complete with safety device of crane, so that in the circumstances of the accident, to protect the electric hoist parts or remind the operator attention, thus playing the role of safety protection.

电动葫芦吊钩起升到规定的高度后,碰触限位重锤,打开行程开关,"过绕"指标灯即亮,同时切断吊钩起升、吊臂伸出、吊臂伏到等动作的操作而确保安全。这时只要操纵吊钩下降,吊臂缩回或吊臂仰起(即向安全方操作)等手柄时,使限位重锤解除约束,操作即恢复正常。在特殊的场合,如仍需要作微量的过绕操作,可按下仪表盒上的释放按钮,此时限位的作用便解除,但此时的操作必须十分谨慎小心,以防发生事故。

Electric hoist hook lifting to a specified height, touch the limit weight, open the switch, "around" indicator light is bright, and cut off the hook lifting, lifting arm, boom volts to movements such as the operation and to ensure the safety of. The manipulation of the hook descends, the jib arm retracted or lifted (i.e. to safe operation), handle, so the limiting weight lifting constraints, the operation returned to normal. On special occasions, such as the need for trace around the operation, press the release button on the instrument box, the limiting role was lifted, but the operation must be very cautious, to prevent accidents.