Otis Elevator Company

GuoSong Li

Hua Zhou

Zixu Zhang

A brake device for an elevator system and a testing method thereof. The brake device includes: a fixed member; a moving member movable between a retracted position and a braking position so as to realize switching of the moving member between an attracting state and a braking state, respectively; an elastic member to provide elastic force tending to push the moving member toward the braking position; a coil configured to produce an electromagnetic force tending to drive the moving member to move toward the retracted position when energized; and a controller configured to control a change of a magnitude of the electromagnetic force produced by the coil in a process of testing the spring force of the elastic member, and to acquire corresponding information of the electrical signal for controlling the magnitude of the electromagnetic force when the moving member switches from the attracting state to the braking state.

Brake device for elevator system and a test method thereof

A brake device includes: a fixed member; a moving member which is movable between a retracted position in which the moving member is adjacent to the fixed member and separate from a braking member, and a braking position in which a friction plate of the moving member contacts the braking member and provides a braking force to the braking member; an elastic member connected between the moving member and the fixed member; a coil disposed in the fixed member; and a controller which provides an operating current to the coil when the elevator is in normal operation, wherein the controller is configured to implement a test mode in which the controller provides a test current less than the operating current to the coil and determines whether the moving member has been attracted to the retracted position.

Brake device, a test method for the brake device and an elevator system

The present invention relates to location recognition and recovery of an elevator system, and belongs to the technical field of elevators. The elevator system of the present invention has a location recovery/recognition system comprising: a landing floor information component or a calling component, a sensing component arranged corresponding to each landing floor information component or calling component and coupled to the landing floor information component or calling component, and a trigger component mounted on the elevator car.

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Tianjin, China

GuoSong Li