The invention discloses a mechanical anti-top-rushing hoisting mechanism, which relates to the technical field of hoisting equipment and comprises a winding drum, a speed reducing motor, a ball screw, a driving plate, a driving gear, a pawl and a connecting rod system, the gear motor drives the winding drum through friction transmission, and the ball screw is in linkage with the gear motor through belt transmission. When the lifting hook is close to the top punching position, the sliding block of the ball screw pushes the drive plate to be meshed with the driving gear, power transmission is cut off, and meanwhile the connecting rod system triggers the pawl to lock the winding drum; through friction transmission, ball screw linkage and a pawl locking mechanism, power is automatically cut off and hook slipping is prevented when the lifting hook approaches to the ejection position; the system adopts pure mechanical design, so that the risk of electronic control failure is avoided; a double-lead ball screw ensures that no top dead point exists, and clamping stagnation cannot be caused by continuous lifting input; the mechanism obviously improves the safety of hoisting equipment, and is suitable for high-altitude operation, port loading and unloading and other scenes.
本发明公开了一种机械式防冲顶卷扬机构,涉及起重设备技术领域,其包括卷筒、减速电机、滚珠丝杠、拨盘、主动齿轮、棘爪及连杆系统;所述减速电机通过摩擦传动驱动卷筒,滚珠丝杠通过皮带传动与减速电机联动;当吊钩接近冲顶位置时,滚珠丝杠的滑块推动拨盘与主动齿轮啮合,切断动力传递,同时连杆系统触发棘爪锁定卷筒;通过摩擦传动、滚珠丝杠联动及棘爪锁定机制,实现吊钩接近冲顶位置时自动切断动力并防止溜钩;系统采用纯机械设计,避免电控失效风险;双导程滚珠丝杠确保无顶死点,持续起升输入不会导致卡滞;本机构显著提升起重设备安全性,适用于高空作业、港口装卸等场景。
Mechanical anti-top-rushing hoisting mechanism
一种机械式防冲顶卷扬机构
09.05.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B66D Haspeln , CAPSTANS |
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