钢丝绳的线头各自通过安装在井架上的定滑轮组，又各自连接到吊笼上。
The ends of the wire ropes are respectively connected on suspension cages through fixed pulley blocks respectively installed on a headframe.
使用摇把转动定滑轮圈绕钢丝索，即可提升备胎，反转摇把即可平稳降下备胎。
The fixed pulley is rotated by a cranking bar to wind the steel cable, a spare tire can be lifted, and the spare tire can be put down stably by rotating in reversal the cranking bar.
排爆绳钩组是由钩、绳、定滑轮、可调节杆、卡紧器、多功能工作夹、吸盘等多种器材组成。
The EOD Rope hook set is composed of hook, rope, fixed pulley, adjustable lever, clamp, multi-function clip and disk.
无游梁塔架式胶带传动长冲程抽油机由曲柄-连杆-滑块机构、动滑轮-窄胶带-定滑轮机构和复合滚筒增程机构组成。
The tower type belt driven long stroke pumping unit is composed of the crank-linkage-slide mechanism, movable pulley-narrow belt-fixed pulley mechanism and compound drum stroke-increment mechanism.
无游梁塔架式胶带传动长冲程抽油机由曲柄-连杆-滑块机构、动滑轮-窄胶带-定滑轮机构和复合滚筒增程机构组成。
The tower type belt driven long stroke pumping unit is composed of the crank-linkage-slide mechanism, movable pulley-narrow belt-fixed pulley mechanism and compound drum stroke-increment mechanism.
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