A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SCREW-DRIVEN CONTROL SYSTEM
The present invention discloses a screw-driven control system, which comprises a driving mechanism fixed in a cross beam, a guide locking piece and a limiting mechanism. The driving mechanism comprises a screw rod and a nut assembly driven by a motor; the nut assembly comprises a transmission frame, a nut sleeved in the screw rod, and a follow-up member fixed in the nut; the nut is mounted in the transmission frame, and the transmission frame is connected with a controlled object; the screw rod drives the nut assembly to reciprocate axially along the screw rod; during the forward rotation of the screw rod, when the follow-up member is contacted with the guide locking piece, the follow-up member moves to the limiting mechanism under the guiding of an upper surface of the guide locking piece and is blocked by the limiting mechanism, then the follow-up member rotates with the screw rod to enter a space between a side plane of the guide locking piece and the limiting mechanism and is locked; and when the screw rod rotates reversely, the follow-up member reversely rotates with the screw rod to disengage from the limitation of the guide locking piece and is unlocked, and then moves axially along the screw rod. The invention solves the safety problem caused by an electromagnetic lock when the electromagnetic lock fails, and is also simpler and more reliable than a mechanical lock structure.
SCREW-DRIVEN CONTROL SYSTEM
The present invention discloses a screw-driven control system, which comprises a driving mechanism fixed in a cross beam, a guide locking piece and a limiting mechanism. The driving mechanism comprises a screw rod and a nut assembly driven by a motor; the nut assembly comprises a transmission frame, a nut sleeved in the screw rod, and a follow-up member fixed in the nut; the nut is mounted in the transmission frame, and the transmission frame is connected with a controlled object; the screw rod drives the nut assembly to reciprocate axially along the screw rod; during the forward rotation of the screw rod, when the follow-up member is contacted with the guide locking piece, the follow-up member moves to the limiting mechanism under the guiding of an upper surface of the guide locking piece and is blocked by the limiting mechanism, then the follow-up member rotates with the screw rod to enter a space between a side plane of the guide locking piece and the limiting mechanism and is locked; and when the screw rod rotates reversely, the follow-up member reversely rotates with the screw rod to disengage from the limitation of the guide locking piece and is unlocked, and then moves axially along the screw rod. The invention solves the safety problem caused by an electromagnetic lock when the electromagnetic lock fails, and is also simpler and more reliable than a mechanical lock structure.
SCREW-DRIVEN CONTROL SYSTEM
STEUERUNGSSYSTEM MIT SPINDELANTRIEB
SYSTÈME DE COMMANDE À VIS
SHI XIANG (author) / GE HANQING (author) / GONG ZHIBING (author) / DAI ZUXIN (author) / XU SONGNAN (author)
2021-08-25
Patent
Electronic Resource
English