摘要:
A cable transportation system with at least one haul cable has a supporting structure with a tubular portion defining an axis of rotation; a pulley extending about the axis of rotation; and a bearing assembly, which is connected to the pulley and the tubular portion to enable the pulley to rotate about the axis of rotation with respect to the supporting structure, and has a first and second bearing arranged concentrically and in series, so as to ensure rotation of the pulley about the axis of rotation and with respect to the supporting structure utilizing at least the first or second bearing.
摘要:
A method for tensioning a cable uses a tensioning installation comprising a pulley over which the cable passes, a support trolley for the mobile pulley, on a guide rail and one or several linear actuators to move the trolley. The method allows coupling an actuator, in a first position between a first support point fixed relative to the rail and a second support point fixed relative to the trolley such that the trolley moves on a first segment of the rail and the actuator is controlled as a function of the set tension of the cable decoupling the actuator from its first position; and coupling an actuator, in a second position between a third support point fixed relative to the rail and a fourth support point fixed relative to the trolley, at least one of the third support point or the fourth support point being distinct from the first support point and the second support point such that the trolley moves on a second segment of the rail and the actuator is controlled as a function of the set tension of the cable. A cable tensioning installation and a cable transport installation are described.
摘要:
The invention relates to a method for controlling a braking unit of a rope transport installation. The command signals of a first braking means are modulated, until the installation is stopped, by means of a first modulation circuit integrated in the control unit to automatically regulate the running speed of the rope according to a first predetermined deceleration setpoint curve activated by said braking order. The command signals of a second braking means are simultaneously modulated by means of a second modulation circuit integrated in the control unit to automatically regulate the running speed of the rope according to a second predetermined deceleration setpoint curve activated by said braking order, the instantaneous value of the second setpoint curve being at all times greater than the value of the first setpoint curve.The invention also relates to a braking unit of a rope transport installation enabling the method to be applied.
摘要:
A winch for moving loads with a continuous cable over varying distances that consists of a winch drum (10) with a fixed sleeve (26) to maintain proper laydown and separation of cable (34) on the drum (10). The sleeve (26) is helically grooved on its interior surface to form a space for the winch cable (34) to be guided therein. Pull force is mostly the result of the tension adjusted on the endless cable, the friction between the cable (34) and drum (10), the diameter of the drum, and the number of turns of cable (34) on the drum (10). The number of turns of cable (34) on the drum (10) is determined by the length of the drum (10) and sleeve (26) and the number of grooves machined into the sleeve's interior surface.
摘要:
A return bull wheel construction for cable-driven chair lift comprising a hub and a flanged head extending from the hub and surrounding and reinforcing the spokes, the flanged head terminating at the outer periphery of the wheel and has an upper flange to engage the inner jaw of grip or clamp and having a lower flange below the neoprene liner that engages the cable. The lower flange has a stiffener and the upper flange has a reinforcement bar. A channel member connects with the outer bent rim portion of the flanged head and a bent angle member that connects with the stiffener and the spokes.
摘要:
Cable transport installation, including: at least one carrier, a first hauling cable to haul at least one carrier and describing a first closed loop, and a second hauling cable to haul at least one carrier and describing a second closed loop, the second loop surrounding the first loop so as to create a separating space between the first and second hauling cables.