A wire rope hoist limiter device, includes a fastener arranged to be fastened around the wire rope of the wire rope hoist; a sliding weight arranged to slide along the wire rope of the wire rope hoist towards the fastener; and a detector arranged to be fastened to the wire rope of the wire rope hoist by means of the fastener. The detector is arranged to detect the sliding weight at a certain distance from the fastener and to give a stop signal for the wire rope hoist in response.

A wire rope hoist limiter device, includes a fastener arranged to be fastened around the wire rope of the wire rope hoist; a sliding weight arranged to slide along the wire rope of the wire rope hoist towards the fastener; and a detector arranged to be fastened to the wire rope of the wire rope hoist by means of the fastener. The detector is arranged to detect the sliding weight at a certain distance from the fastener and to give a stop signal for the wire rope hoist in response.

A rotational over travel protection device for preventing over rotation of at least one of a cable, or a component operable with the rotational over travel protection device is provided. The device includes a housing, a rotatable shaft connected to the housing that can rotate relative to the house, and a triggering device supported in the housing and rotatable with the rotatable shaft. The device also includes a first and second rotational limit switch disposed in the housing. The switches are operable to be activated by the triggering device to arrest rotation of the rotatable shaft upon relative rotation of the rotatable shaft and the housing either a first or second rotation direction, respectively, at least 180 degrees from a zero position.

A rotational over travel protection device for preventing over rotation of at least one of a cable, or a component operable with the rotational over travel protection device is provided. The device includes a housing, a rotatable shaft connected to the housing that can rotate relative to the house, and a triggering device supported in the housing and rotatable with the rotatable shaft. The device also includes a first and second rotational limit switch disposed in the housing. The switches are operable to be activated by the triggering device to arrest rotation of the rotatable shaft upon relative rotation of the rotatable shaft and the housing either a first or second rotation direction, respectively, at least 180 degrees from a zero position.

A hoist lifting system having planning and monitoring of components. The system monitors one or more components and may have a processing structure and memory storing instructions to configure the processing structure to: receive hoist machine data; determine a rotation speed of a bearing, a travel speed of a rope, a load on the bearing, a friction in the at least one bearing based on the hoist machine data; and store the rotation speed, the travel speed, the load, and the friction in a maintenance database in memory. The hoist lifting system may have the processing structure determine a wear of one or more components.

A hoist lifting system having planning and monitoring of components. The system monitors one or more components and may have a processing structure and memory storing instructions to configure the processing structure to: receive hoist machine data; determine a rotation speed of a bearing, a travel speed of a rope, a load on the bearing, a friction in the at least one bearing based on the hoist machine data; and store the rotation speed, the travel speed, the load, and the friction in a maintenance database in memory. The hoist lifting system may have the processing structure determine a wear of one or more components.

A positioning system includes a plurality of sensors, a frame, including a plurality of rollers, and a housing. The housing includes at least one guide rod and a driving module. The at least one guide rod is disposed laterally within the housing. The frame is coupled to the at least one guide rod, such that the frame is configured to translate laterally along the at least one guide rod. The driving module is configured to translate the frame along the at least one guide rod, responsive to a signal received from the plurality of sensors.

A positioning system includes a plurality of sensors, a frame, including a plurality of rollers, and a housing. The housing includes at least one guide rod and a driving module. The at least one guide rod is disposed laterally within the housing. The frame is coupled to the at least one guide rod, such that the frame is configured to translate laterally along the at least one guide rod. The driving module is configured to translate the frame along the at least one guide rod, responsive to a signal received from the plurality of sensors.

A double-drum linkage winding type hoisting system includes a first hoisting drum and a second hoisting drum. The first hoisting drum and the second hoisting drum are engaged and linked through engagement structures on outer circumferences of the first hoisting drum and the second hoisting drum or are linked through a linkage intermediate member. A first hoisting rope is wound around the first hoisting drum. A second hoisting rope is wound around the second hoisting drum. The first hoisting rope and the second hoisting rope are not connected with each other.

A double-drum linkage winding type hoisting system includes a first hoisting drum and a second hoisting drum. The first hoisting drum and the second hoisting drum are engaged and linked through engagement structures on outer circumferences of the first hoisting drum and the second hoisting drum or are linked through a linkage intermediate member. A first hoisting rope is wound around the first hoisting drum. A second hoisting rope is wound around the second hoisting drum. The first hoisting rope and the second hoisting rope are not connected with each other.