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Crane system

A technology for a crane and a power storage device, which is applied in the directions of cranes, trolley cranes, motors, etc., can solve problems such as the scale of power storage devices becoming larger.

Inactive Publication Date: 2011-02-23
MITSUI ENG & SHIPBUILD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Therefore, when the power storage device supplements the two different types of load power that the crane device has, the power storage device needs to be high in both output density and energy density, and as a result, the scale of the power storage device becomes large.

Method used

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no. 1 approach

[0037] First, refer to figure 1 , the crane device according to the first embodiment of the present invention will be described.

[0038] This crane device 100 is a crane device that loads and unloads cargo by separately driving a plurality of motors. As a main structure, a power supply device 1, a main lifting motor 20, a traveling motor 21, a lateral movement motor 22, an inverter (INV ) 31 to 33 , a power storage device (first power storage device) 41 , a power storage device (second power storage device) 42 , a controller 5 and a common bus 10 .

[0039] In the present embodiment, the electric power used in the crane device 100 is supplied by the power supply device 1 as the supplied electric power 1A, and a part of the supplied electric power 1A is stored in the power storage device (first power storage device) 41 , and when the supplied power 1A is insufficient, the stored power is released. To supplement the supply power 1A with electric power, a part of the supply pow...

no. 2 approach

[0094] Next, refer to Figure 6 ~ Figure 9 , a crane device according to a second embodiment of the present invention will be described.

[0095] In the first embodiment, the case where the power supply device 1 is realized by an engine generator has been described as an example. In this embodiment, as the ground power supply method, a case will be described in which the electric power supplied from the power supply device 7 of the roadway 71 via the power supply cable 14 is used as the electric power supply 1A for the motor as an example.

[0096] like Image 6 As shown, in the crane device 101 of the present embodiment, instead of the engine generator device of the first embodiment, a power supply device 1 composed of an AC / DC converter is provided, as shown in Figure 8 and Figure 9 As shown, the electric power supplied from the power supply device 7 of the lane 71 is input to the power supply device 1 via the socket 13 and the power cable 14 .

[0097] Power supply de...

no. 3 approach

[0116] Next, refer to Figure 11 , a crane device according to a third embodiment of the present invention will be described.

[0117] In the second embodiment, as the ground power supply method, a case where the electric power supplied from the power supply device 7 of the lane 71 via the power cable 14 is used as the supplied electric power 1A has been described as an example. In this embodiment, as the ground power feeding method, a case will be described in which the electric power supplied from the power supply device of the lane collected by the contactless power feeding method is used as the power supply 1A as an example.

[0118] First, refer to Figure 11 , the electrical configuration of the crane device of this embodiment will be described.

[0119] The power collector 15 has a function of collecting power from the power supply device 7 installed on each lane 71 of the container terminal 70 from the power supply cable 8A extending along the lane 71 by non-contact ...

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Abstract

An electric power storage device (first electric power storage device)(41) supplements supply power by storing a part thereof and discharging the stored electric power when the supply power is deficient, an electric power storage device (second electric power storage device)(42) supplements supply power by storing a part thereof and discharging the stored electric power at least during hoisting operation of a baggage by means of a motor, and an electric power storage device having an output density higher than the output density of the electric power storage device (41) is employed as the electric power storage device (42). Alternatively, an electric power storage device having an energy density higher than the energy density of the electric power storage device (42) is employed as the electric power storage device (41).

Description

technical field [0001] The present invention relates to a crane device, and more particularly to a portal-type crane device for loading and unloading containers at a container terminal by driving a motor. Background technique [0002] In a container terminal, a gantry crane device that loads and unloads cargo such as containers from a ship or a trailer uses a plurality of electric motors to lift the cargo, and further perform motions such as traveling and lateral movement of the gantry. As a method of supplying electric power to the motor, there is an engine-driven power generation method. In this engine-driven power generation system, an engine generator that drives a generator with a diesel engine is used to generate necessary electric power and supply it to each electric motor. On the other hand, as another method of supplying electric power to the motor, there is a ground power supply method. In this ground power supply system, a power supply device is arranged in a la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C13/12
CPCB66C13/12B66C13/28B66C13/18B66C19/007B60L2200/40B60L50/15Y02T10/7072Y02T10/64
Inventor 原田秀和
Owner MITSUI ENG & SHIPBUILD CO LTD