Abstract:
The object of the invention is a traction sheave elevator and a rope (3) that contains metal as a load-bearing material, such as the suspension rope of an elevator, which rope comprises at least one or more strands (7) laid from metal wires (9) and which rope (3) is lubricated with a lubricant (8). Another object is the use of the aforementioned lubricant for lubricating the rope (3). The lubricant (8) comprises at least oil and thickener, which thickener in the lubricant (8) comprises at least 10% or more of the mass of the lubricant (8).
Abstract:
In the invention a method is presented for ensuring operating safety in an elevator system, an elevator system, and a safety device of an elevator system. The elevator system comprises at least an elevator car, elevator ropes, an elevator motor, a traction sheave and at least two holding brakes, which holding brakes are arranged to prevent movement of the elevator car when the elevator is stopped. According to the invention the first holding brake is engaged at the end of an elevator run, and the other holding brakes are engaged with a delay. When one holding brake is engaged, the state of motion of the elevator and any slipping of the brake is monitored. If the brake is detected as slipping, a procedure for preventing a hazardous situation is performed.
Abstract:
The object of the invention is a traction sheave elevator and a rope (3) that contains metal as a load-bearing material, such as the suspension rope of an elevator, which rope comprises at least one or more strands (7) laid from metal wires (9) and which rope (3) is lubricated with a lubricant (8). Another object is the use of the aforementioned lubricant for lubricating the rope (3). The lubricant (8) comprises at least oil and thickener, which thickener in the lubricant (8) comprises at least 10% or more of the mass of the lubricant (8).
Abstract:
The object of the invention is a traction sheave elevator and a rope that contains metal as a load-bearing material, such as the suspension rope of an elevator, which rope comprises at least one or more strands laid from metal wires and which rope is lubricated with a lubricant. Another object is the use of the aforementioned lubricant for lubricating the rope. The lubricant comprises at least oil and thickener, which thickener in the lubricant comprises at least 10% or more of the mass of the lubricant.
Abstract:
Ascensor con polea de tracción, que comprende al menos una cabina (1) y una pluralidad de cables (3) de suspensión para mover la cabina del ascensor, siendo hechos pasar los cables sobre una polea de tracción (4) provisto con una máquina de izado y cuyos cables (3) de suspensión son cables de suspensión de alambre de acero y están lubricados con un lubricante 5 (8), en el que el lubricante (8) de los cables (3) de suspensión de alambre de acero del ascensor comprende al menos aceite y un espesante, caracterizado por que el espesante en el lubricante (8) comprende uno o más aditivos sólidos en grano de un material que es más blando que el acero de los cables de suspensión de alambre de acero, en donde el contenido del espesante en el lubricante (8) es del 30-85% de la masa del lubricante (8).
Abstract:
In the invention a method is presented for ensuring operating safety in an elevator system, an elevator system, and a safety device of an elevator system. The elevator system comprises at least an elevator car, elevator ropes, an elevator motor, a traction sheave and at least two holding brakes, which holding brakes are arranged to prevent movement of the elevator car when the elevator is stopped. According to the invention the first holding brake (106,107) is engaged after elevator run has ended, and the other holding brakes (106,107) are engaged with a delay. When one holding brake is engaged when the elevator is stopped and empty, motor torque is increased to a certain limit and the state of motion of the elevator and any slipping of the brake is monitored. If the brake is detected as slipping, the torque at which slipping starts is registered and a procedure for preventing a hazardous situation is performed.
Abstract:
In the invention a method is presented for ensuring operating safety in an elevator system, an elevator system, and a safety device of an elevator system. The elevator system comprises at least an elevator car, elevator ropes, an elevator motor, a traction sheave and at least two holding brakes, which holding brakes are arranged to prevent movement of the elevator car when the elevator is stopped. According to the invention the first holding brake (106,107) is engaged after elevator run has ended, and the other holding brakes (106,107) are engaged with a delay. When one holding brake is engaged when the elevator is stopped and empty, motor torque is increased to a certain limit and the state of motion of the elevator and any slipping of the brake is monitored. If the brake is detected as slipping, the torque at which slipping starts is registered and a procedure for preventing a hazardous situation is performed.
Abstract:
Método para garantizar la seguridad en el funcionamiento de un sistema de ascensor, cuyo sistema de ascensor comprende al menos una cabina de ascensor, cuya cabina de ascensor está soportada, al menos en partes, por medio de cables de ascensor, un motor de ascensor, una polea de tracción para mover la cabina del ascensor mediante los cables de ascensor, y al menos dos frenos de retención, cuyos frenos de retención están dispuestos para impedir que la cabina del ascensor se mueva cuando el ascensor está parado, caracterizado porque el método comprende las fases de: a. después de que el ascensor ha finalizado un recorrido solamente se aplica un freno de retención (106, 107) y los otros frenos de retención se aplican con un retardo, b. cuando el ascensor está parado y vacío y uno de los frenos está aplicado, se incrementa el par del motor hasta un cierto límite, c. se vigilan el estado de movimiento del ascensor y cualquier resbalamiento del freno con un freno de retención aplicado, d. si se detecta que el freno está resbalando, se registra el valor del par al cual se inicia el resbalamiento y se toma una medida para impedir la aparición de una situación peligrosa.