The invention discloses a marine main engine foundation bolt hole drilling method which comprises the following steps that 1, the fixing positions of a first electromagnet and a second electromagnet are determined according to the spatial arrangement situation around the drilling position of a main engine foundation bolt hole, the first electromagnet is fixed to a main engine base, and the secondelectromagnet is fixed to the side wall or an iron stand; 2, a supporting rod, a supporting plate and a pressing rod assembly are installed; 3, a drill bit of an air drill is aligned to the drilling position of a main machine foundation bolt hole, the air drill is started, and a handle on a pressing rod is rotated to conduct drilling; and 4, after drilling is completed, the first electromagnet andthe second electromagnet are powered off, the pressing rod is moved to the next drilling position, and the first step, the second step and the third step are repeated. The marine main engine foundation bolt hole drilling method is simple in structure, easy to machine and manufacture and low in construction cost, the special pressing rod can flexibly adjust the relative positions of a drilling point and a pressing rod fixing point, the foundation bolt hole drilling device can be suitable for drilling of foundation bolt holes under complex conditions, use universality is achieved, and the foundation bolt hole drilling device can be recycled infinitely.
本发明公开了一种船舶主机底脚螺栓孔钻孔方法,包括以下步骤:步骤一、根据主机底脚螺栓孔的钻孔位置四周的空间布置情况,确定第一电磁铁、第二电磁铁的固定位置,将第一电磁铁固定在主机基座上,第二电磁铁固定在侧壁或者铁架上;步骤二、安装支撑杆、支撑板及压杆组件;步骤三、将风钻的钻头对准主机底脚螺栓孔的钻孔位置,启动风钻,旋转压杆上的手柄进行钻孔;步骤四、钻孔完成后,对第一电磁铁、第二电磁铁断电,移动压杆至下一个钻孔位置,重复步骤一至步骤三。本发明结构简单,易加工制造,施工成本低,特制压杆可灵活调节钻孔点和压杆固定点的相对位置,能适用复杂条件下底脚螺栓孔的钻孔工作,具有使用的普遍性,且能无限循环使用。
Marine main engine foundation bolt hole drilling method
一种船舶主机底脚螺栓孔钻孔方法
2020-12-04
Patent
Electronic Resource
Chinese
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