The invention provides a force adjustable safety brake for use in an elevator system. A force adjustable safety brake includes a safety block, an electromagnet, and first and second braking elements housed in the safety block. The safety block includes a channel arranged to receive, in use, a guide rail of an elevator system. The first braking element is configured to move from an initial position into an engaged position wherein the guide rail is received in the channel to cause a braking force, and the second braking element is configured to cause an additional braking force on the guide rail when the first braking element is in the engaged position. The electromagnet is operable to selectively generate a magnetic force acting on the second braking element in a lateral direction away from the channel in order to reduce an additional braking force on the guide rail.
本发明提供了一种力可调整式安全制动器,其用于在电梯系统中的使用。力可调整式安全制动器包括安全块、电磁体以及容纳于安全块中的第一制动元件和第二制动元件。安全块包括布置成在使用中接纳电梯系统的导轨的通道。第一制动元件构造成从初始位置移动到接合位置中,其中,导轨接纳于通道中,以造成制动力,并且,在第一制动元件位于接合位置中时,第二制动元件构造成造成导轨上的额外的制动力。电磁体可操作成选择性地产生沿侧向方向远离通道而作用于第二制动元件上的磁力,以便减小导轨上的额外的制动力。
FORCE ADJUSTABLE SAFETY BRAKE
力可调整式安全制动器
2022-05-06
Patent
Electronic Resource
Chinese
IPC: | B66B Aufzüge , ELEVATORS |