An elevator may include a brake apparatus such as a safety apparatus or a service brake, for example. The brake apparatus may be designed to generate a stepped braking force for braking an elevator car of the elevator. A plurality of brake cylinder assemblies may be configured so as to supply different braking forces. The brake cylinder assemblies may in some cases include a piston, a spring, and a brake pad. Moreover, a valve assembly may be utilized by one or more of the brake cylinder assemblies. Additional features of the brake apparatus may involve a compressor, a pressure accumulator, a pressure regulating valve.

The present disclosure discloses a method for collaboratively controlling a multi-channel braking system of a mine hoist, including obtaining the abrasion loss of the brake shoe by detecting position information of the brake shoe of each of disc brakes in real time, dividing abrasion loss levels by determining different abrasion degrees of the brake shoe, formulating three braking force distributing modes: an average distribution, a proportional distribution, and an index distribution according to the abrasion loss levels, thereby dynamically adjusting a set braking pressure of each of the disc brakes, tracking and controlling the set braking pressure through the disc brakes by adopting a pressure closed-loop control method by utilizing a pressure signal feedback from an oil pressure sensor, implementing a collaborative braking control of the multi-channel braking system of the mine hoist based on the abrasion loss of the brake shoe.

The present disclosure discloses a method for collaboratively controlling a multi-channel braking system of a mine hoist, including obtaining the abrasion loss of the brake shoe by detecting position information of the brake shoe of each of disc brakes in real time, dividing abrasion loss levels by determining different abrasion degrees of the brake shoe, formulating three braking force distributing modes: an average distribution, a proportional distribution, and an index distribution according to the abrasion loss levels, thereby dynamically adjusting a set braking pressure of each of the disc brakes, tracking and controlling the set braking pressure through the disc brakes by adopting a pressure closed-loop control method by utilizing a pressure signal feedback from an oil pressure sensor, implementing a collaborative braking control of the multi-channel braking system of the mine hoist based on the abrasion loss of the brake shoe.

A brake assembly for a pneumatic vacuum elevator is disclosed. The brake assembly includes a support plate mechanically coupled to a brake fixing plate fixed on an elevator cabin. The brake assembly also includes a brake wheel coupled to the support plate. The support plate is configured to rotate based on movement of the brake wheel. The brake assembly further includes at least one spring coupled to a seal assembly and the brake fixing plate, wherein the spring is actuated based on the movement of the seal assembly. The brake assembly further includes a plurality of brake shoes coupled to the support plate. The plurality of brake shoes is configured to control the movement of the elevator cabin in at least one mode via a guide rail based on the movement of the at least one spring and the brake wheel.

An elevator brake arrangement includes at least a brake unit including a body, a brake plate assembly, a spring assembly, an electromagnet arrangement and a counter element, and also a rotating brake disc. The brake plate assembly includes at least two brake plates and a state detector that is arranged to monitor the operation states of the brake plates.

An elevator brake for braking rotation of a shaft in an elevator drive system comprises at least two brake discs mounted to the shaft Such as to rotate concurrently with the shaft; at least three movable plungers, which are movable along the axial direction (A) for selectively engaging or releasing the elevator brake; and an actuator. The actuator comprises at least two springs configured for applying a spring force to at least one of the at least three movable plungers for urging the at least one movable plunger towards at least one of the brake discs for engaging the elevator brake; and at least two solenoids for producing a counterforce directed against the respective spring force applied by a respectively associated spring such as to urge the respective at least one movable plunger in the axial direction (A) away from the respective brake disc.

An elevator brake disc assembly (30) for braking rotation of a shaft (12) within an elevator brake (20), the shaft (12) extending in an axial direction (A) and being rotatable around an axis of rotation, includes: a brake disc (33) mounted to the shaft (12) for rotating concurrently with the shaft (12); at least one first brake lining (34) firmly fitted to the brake disc (33); and at least one second brake lining (36) attached to the brake disc (33) in a configuration in which the at least one second brake lining (36) rotates concurrently with the brake disc (33) and in which it is movable with respect to the brake disc (33) along the axial direction (A).