An upgraded quay crane system and an operation process, wherein a conventional quay crane girder is upgraded into a double-trapezoid four-track girder (1). An upper trolley (2) travels on upper trolley running tracks (a16) on an inner side of the double-trapezoid four-track girder (1), a lower trolley (3) is suspended upside down on lower trolley running tracks (a8) on an outer side of the double-trapezoid four-track girder (1), and a container (5) hoisted by the upper trolley (2) via a hoist (4) is able to pass through the lower trolley (3). The present quay crane system improves on the conventional quay crane having a single operation trolley by adding one more operation trolley on the outer side of the original quay crane girder. The two trolleys are vertically disposed, and the space structure for the lower trolley is cleverly designed, such that the two trolleys can operate independently without interfering with each other. The two trolleys of the upgraded quay crane have enough space to pass by each other and operate at the same time, thereby doubling loading and unloading efficiency.

The disclosure relates to an aerial transportation vehicle including a vehicle frame. The vehicle frame includes an upper vehicle frame (3); a lower vehicle frame (4); lifting assembly (a), at least two lifting assemblies (a) opposite to each other being provided in a first direction, and the lower vehicle frame (4) and the upper vehicle frame (3) may be made to move close to or away from each other by operating at least two lifting assemblies (a); a locking device (b), the locking device (b) being disposed on the lower vehicle frame (4); when the lower vehicle frame (4) and the upper vehicle frame (3) move close to each other, the lower vehicle frame (4) and the upper vehicle frame (3) may be locked together by operating the locking device (b); a guide device (d), the guide device (d) being disposed on the lower vehicle frame (4); when the lower vehicle frame (4) and the upper vehicle frame (3) are separated from each other, the containers of different specifications may be quickly assembled and connected onto the lower vehicle frame (4) by operating the guide device (d). The disclosure can realize the assembly and connection of the containers with the aerial transportation vehicle by means of the devices of the aerial transportation vehicle itself with a simple operation. In addition, the disclosure also relates to an aerial rail container transportation method.

The disclosure relates to an aerial transportation vehicle including a vehicle frame. The vehicle frame includes an upper vehicle frame (3); a lower vehicle frame (4); lifting assembly (a), at least two lifting assemblies (a) opposite to each other being provided in a first direction, and the lower vehicle frame (4) and the upper vehicle frame (3) may be made to move close to or away from each other by operating at least two lifting assemblies (a); a locking device (b), the locking device (b) being disposed on the lower vehicle frame (4); when the lower vehicle frame (4) and the upper vehicle frame (3) move close to each other, the lower vehicle frame (4) and the upper vehicle frame (3) may be locked together by operating the locking device (b); a guide device (d), the guide device (d) being disposed on the lower vehicle frame (4); when the lower vehicle frame (4) and the upper vehicle frame (3) are separated from each other, the containers of different specifications may be quickly assembled and connected onto the lower vehicle frame (4) by operating the guide device (d). The disclosure can realize the assembly and connection of the containers with the aerial transportation vehicle by means of the devices of the aerial transportation vehicle itself with a simple operation. In addition, the disclosure also relates to an aerial rail container transportation method.

There is provided a method of installing spiral hangers about a messenger line installed between first and second utility poles with a cable being lashed to the messenger line with a lashing wire. The method includes attaching a first and second spiral hangers to the messenger line between first and second utility poles with the first spiral hanger disposed about the messenger line and the cable. The method includes removing the lashing wire from being around the messenger line and the cable adjacent the second spiral hanger. The method includes moving the second spiral hanger towards the second utility pole. The method includes attaching a successive spiral hanger to the messenger line between the spiral hangers and repeating the moving of the second spiral hanger and attaching another successive spiral hanger.

There is provided a method of installing spiral hangers about a messenger line installed between first and second utility poles with a cable being lashed to the messenger line with a lashing wire. The method includes attaching a first and second spiral hangers to the messenger line between first and second utility poles with the first spiral hanger disposed about the messenger line and the cable. The method includes removing the lashing wire from being around the messenger line and the cable adjacent the second spiral hanger. The method includes moving the second spiral hanger towards the second utility pole. The method includes attaching a successive spiral hanger to the messenger line between the spiral hangers and repeating the moving of the second spiral hanger and attaching another successive spiral hanger.

Proposed are an OHT (overhead hoist transport) vehicle traction device and a method of managing an OHT system using same. The OHT vehicle traction device may solve problems of a driving-malfunction vehicle on the rails of an OHT system or tows the vehicle, and the method of managing the OHT system may increase the management efficiency of the entire OHT system by solving problems of a driving-malfunction vehicle or towing the vehicle in an unmanned type.

Proposed are an OHT (overhead hoist transport) vehicle traction device and a method of managing an OHT system using same. The OHT vehicle traction device may solve problems of a driving-malfunction vehicle on the rails of an OHT system or tows the vehicle, and the method of managing the OHT system may increase the management efficiency of the entire OHT system by solving problems of a driving-malfunction vehicle or towing the vehicle in an unmanned type.

An overhead transport vehicle travels along a travel rail and conveys a FOUP including a removable lid in a suspended state. The overhead transport vehicle includes a holder to grip the FOUP with the lid oriented in a width direction crossing the traveling direction, a pair of frames provided at the front and the back in the traveling direction relative to the holder, and a first lid drop-preventing member pivotable along a horizontal plane about a pivot shaft in the vertical direction, between an advanced position in front of the lid and a retracted position at a position retracted from the front of the lid.

A lifting mechanism includes a lifting beam, a hanging portion suspended below the lifting beam and including a hanging base, a hanging chain, a movable sprocket disposed on the hanging base, a distance adjusting sprocket, and a power mechanism. The distance adjusting sprocket and the power mechanism are arranged side by side and separately on the lifting beam. The power mechanism includes a fixed sprocket and a driving portion. The fixed sprocket is driven by the driving portion to drive the hanging chain to move, so as to lift or lower the hanging portion. An end of the hanging chain is fixed to the lifting beam, and the other end of the hanging chain engages the movable sprocket, the fixed sprocket, and the distance adjusting sprocket, or the other end of the hanging chain engages the movable sprocket, the distance adjusting sprocket, and the fixed sprocket.

A hoisting device includes a first part movably connected to a running rail above it, and a second part suspended under the first part, and a hoist arranged between the first part and second part to lift and lower the second part. In addition, a scissors mechanism is arranged between the first part and second part to prevent the horizontal movement and twisting movement of the second part in relation to the first part. Such a hoisting device is advantageous, because the second part of the hoisting device may be lifted and lowered at the same time as the first part is moved without any notable swinging exerted on the second part.