The invention relates to an electromagnetic type supporting foot device. The electromagnetic type supporting foot device comprises a fixing frame, a lifting unit and locking units arranged on the twosides of the lifting unit. The lifting unit comprises a first electromagnet, a supporting rod and a supporting base, wherein the supporting rod is made of ferromagnetic materials and provided with anexternal thread, and the supporting base is connected to the bottom of the supporting rod. The first electromagnet is fixedly connected with the fixing frame. The supporting rod can move up and down and is arranged below the first electromagnet under the magnetic force effect of the first electromagnet. Each locking unit comprises a second electromagnet, an armature and a movable half nut providedwith an internal thread, wherein the second electromagnet is fixed to the fixing frame, the movable half nut is rotationally arranged on the fixing frame and located on the side, provided with the external thread, of the supporting rod, and the armature can move up and down, is arranged below the second electromagnet under the magnetic force effect of the second electromagnet and is movably connected with the movable half nut. The two movable half nuts in the two locking units are connected through a tension spring. Through cooperation of the first electromagnet, the second electromagnets, the supporting rod and the armatures, the function of automatic lifting of supporting feet is achieved.
本发明涉及一种电磁式撑脚装置,包括固定架、升降单元和设置在升降单元两侧的锁止单元;升降单元包括第一电磁铁、由铁磁性材料制成且设有外螺纹的支撑杆和连接在支撑杆底部的支撑座,第一电磁铁固定连接固定架,支撑杆可上下移动并受第一电磁铁磁力作用的设置在第一电磁铁下方;锁止单元包括第二电磁铁、衔铁和设有内螺纹的活动半螺母,第二电磁铁固定在固定架上,活动半螺母可转动设置在固定架上并处于支撑杆上设有外螺纹部分的一侧,衔铁可上下移动并受第二电磁铁磁力作用的设置在第二电磁铁下方且活动连接活动半螺母;两组锁止单元中的两活动半螺母由拉簧连接。通过第一电磁铁、第二电磁铁和支撑杆、衔铁的配合,实现撑脚自动升降的功能。
Electromagnetic type supporting foot device
一种电磁式撑脚装置
2020-11-13
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
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