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性能:最大超重量約为5吨;移动和回轉灵敏;构造簡单,操作方便,可用于車間运輸和超重等工作。 結构:悬臂鉚接在套筒上,两边有角铁支掌。套筒下面是齿輪和滾珠止推軸承。吊鈎的滑移,靠手动鏈輪通过蜗杆、蜗輪和鏈輪传动。用鏈条使吊钩移动。鏈就挂在吊鈎的环上。操作方法:操縱手柄,通过伞齿輪和正齿輪使悬臂轉动;手拉链条,可以使吊钩拉移动;操縱吊鈎上挂着的拉鏈,把重物吊起。
Performance: The maximum weight is about 5 tons; the movement and rotation are sensitive; the structure is simple, the operation is convenient, and it can be used for workshop transportation and overweight work. Structure: The cantilever is riveted to the sleeve with angled iron arms on both sides. Below the sleeve are gears and ball thrust bearings. Sliding of the hook, relying on the manual sprocket through the worm, worm gear and sprocket drive. Use a chain to move the hook. The chain hangs on the hook’s ring. Operation method: The joystick is operated to rotate the cantilever by the bevel gear and the spur gear; the hand zipper strip can pull the hook to move; the zipper on the hook is manipulated to lift the heavy object.