The invention provides a lifting upright post. The lifting upright post comprises a driving device, a lifting pipe and a transmission assembly; the lifting pipe comprises a first pipe, a second pipe,a third pipe and a fourth pipe; the lower end of the fourth pipe is fixed to the driving device; the transmission assembly comprises a first screw rod, a hollow second screw rod and a hollow third screw which are arranged in a sleeving manner in sequence from inside to outside; an output end of the driving device is in transmission fit with the first screw rod and can drive the first screw rod torotate; a first nut which is in threaded transmission connection with the first screw rod is arranged at the lower end of the second screw rod; a second nut which is in threaded transmission connection with the second screw rod is arranged at the lower end of the third screw rod; a third nut which is in threaded transmission connection with the third screw rod is arranged at the lower end of the first pipe; adjacent screw rods are in threaded transmission connection with each other; and the nuts are positioned between the adjacent screw rods, so that devices for fixing the nuts are not required to be arranged additionally; therefore, the transmission assembly is more compact in axial direction and radial direction; the mounting distance of the lifting upright post is further reduced; and short mounting distance and large stroke of the lifting upright post are realized.
本发明提供一种升降立柱,包括驱动装置、升降管及传动总成,升降管包括第一管、第二管、第三管和第四管,第四管的下端固定于驱动装置上,传动总成包括由内向外依次套装的第一丝杆、中空的第二丝杆和中空的第三丝杆,驱动装置的输出端与第一丝杆传动配合且可驱动第一丝杆旋转,第二丝杆的下端设有与第一丝杆螺纹传动连接的第一螺母,第三丝杆的下端设有与第二丝杆螺纹传动连接的第二螺母,第一管的下端设有与第三丝杆螺纹传动连接的第三螺母,相邻丝杆之间通过螺纹传动连接,且螺母位于相邻两个丝杆之间,无需另外设置固定螺母的装置,使得传动总成的轴向和径向都更加紧凑,进一步降低升降立柱的安装距,实现升降立柱的低安装距大行程。
Lifting upright post
一种升降立柱
2020-04-10
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 / F16H Getriebe , GEARING |
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