水闸工程中卷扬式启闭机的应用较为广泛,考虑到机架下方钢丝绳出绳和运行形式的因素,需在机架和相连接的工作桥桥面相应部位预留孔洞,这类孔洞简称绳孔或观测孔。绳孔的作用是方便钢丝绳出绳,连接卷筒与闸门,确保闸门启闭过程中钢丝绳在卷筒上正常缠绕,同时在闸门启闭过程中方便操作者观察闸门的运行情况;而预留的较大规格的绳孔,对处于 In the sluice project, the winch hoist is widely used. Taking into account the factors that cause the rope to run under the rack and the operating mode, holes are reserved in the corresponding parts of the workbench and the working bridge deck to be connected. Such short holes Rope hole or observation hole. Rope hole role is to facilitate the rope out of the rope, connecting the spool and gate to ensure that the process of opening and closing the gate rope in the normal winding, at the same time in the gate opening and closing process to facilitate the operator to observe the operation of the gate; and reserved Larger specifications of rope hole, right in