The invention relates to a lead screw with an upper limit switch and a lower limit switch. The lead screw comprises a lead screw upper part and a lead screw lower part which are connected through a threaded rod, wherein the end part of the threaded rod is provided with a gear I and a gear II, and the gear I is meshed with the gear II; the lead screw is provided with an upper limit switch and a lower limit switch, the upper limit switch comprises a blocking piece, an upper limit switch component and a sliding seat, and the sliding seat is provided with an upper limiting moving rod and a pressing rod; the upper limit switch component comprises an upper limiting micro switch, and the upper limiting micro switch is provided with an upper limiting contact piece; and the lower limit switch comprises an ejector rod and a lower limit switch component, the lower limit switch component comprises a lower limit micro switch and a lower limit moving rod, the lower limit micro switch is provided with a lower limit switch salient point, the lower limit moving rod is provided with a wide part and a narrow part, and the wide part and the narrow part are connected through a slope. The lead screw is simple in structure, high in sensitivity and almost zero in failure rate, and contributes to stable lifting and effective limiting of a lift platform.
本发明涉及一种具有上限位开关和下限位开关的丝杆,包括通过螺纹杆连接的丝杆上部和丝杆下部,螺纹杆的端部安装有齿轮一和齿轮二,齿轮一和齿轮二啮合;丝杆安装有上限位开关和下限位开关,上限位开关包括阻挡件、上限位开关组件和滑动座,滑动座上安装有上限位移动杆和压杆;上限位开关组件包括上限位微动开关,上限位微动开关设有上限位接触片;下限位开关包括顶杆和下限位开关组件,下限位开关组件包括下限位微动开关和下限位移动杆,下限位微动开关设有下限位开关凸点,下限位移动杆设置有宽部和窄部,宽部和窄部之间通过斜坡连接。本发明结构简单、灵敏度高、故障率几乎为零,为实现升降平台的稳定升降和有效限位作出了贡献。
Lead screw with upper limit switch and lower limit switch
一种具有上限位开关和下限位开关的丝杆
2021-06-04
Patent
Electronic Resource
Chinese
IPC: | B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |