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Method for controlling port loading and unloading equipment to reduce loading and unloading time, and port loading and unloading equipment

A technology of loading and unloading equipment and control methods, which is applied in hoisting devices, transportation and packaging, and clockwork mechanisms, etc., to achieve the effect of reducing energy and shortening loading and unloading time

Inactive Publication Date: 2015-09-09
MITSUI E&S MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, if Figure 8 As shown, if the output characteristics of the motor are considered, it can be seen that there is a margin in the constant torque area A2

Method used

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  • Method for controlling port loading and unloading equipment to reduce loading and unloading time, and port loading and unloading equipment
  • Method for controlling port loading and unloading equipment to reduce loading and unloading time, and port loading and unloading equipment
  • Method for controlling port loading and unloading equipment to reduce loading and unloading time, and port loading and unloading equipment

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Embodiment Construction

[0050] Hereinafter, a control method of a port handling facility and a port handling facility according to an embodiment of the present invention will be described with reference to the drawings. In addition, the same reference numerals are used for the same configurations and operations as conventional ones, and descriptions thereof are omitted. In addition, as the port handling equipment according to the embodiment of the present invention, a quay crane (hereinafter referred to as a crane) for loading and unloading cargo from a container ship will be described as an example, but the port handling equipment according to the embodiment of the present invention is not limited to crane. As long as it is a port handling equipment that uses electric motors to lift and lower cargo, it can be applied to dock cranes, gantry mobile cranes, giant cranes, jib cranes, tower cranes, unloading cranes, bridge cranes and straddle carriers, etc. In port handling equipment.

[0051] The cran...

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PUM

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Abstract

The present invention reduces loading and unloading time without changing the amount of power consumed by way of controlling a motor (22) of a crane (10) so as to raise or lower a container (C1), regardless of the load (W1) of the container (C1), at a fixed first acceleration by way of a first maximum torque (Tm) that is the maximum torque of a constant torque region (A2), from the start of raising or lowering the container (C1) until reaching a standard speed (V0), and to raise or lower at a second acceleration, that varies at a fixed interval by way of a calculated second torque, from the standard speed (V0) to a maximum speed (Vmax) calculated from the load (W1), by calculating, at a predetermined fixed time interval, the second torque that is the difference between a holding torque (Tw) and a second maximum torque (Tv) that is the maximum torque inversely proportional to a speed (V1) determined by the constant torque region (A2).

Description

technical field [0001] The present invention relates to a control method of a harbor handling facility and a harbor handling facility which shorten loading and unloading time in a harbor handling facility for raising and lowering hoisted cargo. Background technique [0002] Recently, with the rapid development of container transport systems on international routes, container ships have become larger, and port handling equipment such as quay cranes, gantry cranes, straddle carriers, and unloaders for loading and unloading cargo with container ships have been required to be improved. loading and unloading efficiency. In addition, as a social environmental problem, energy saving by reducing CO2 is required. These methods of improving the loading and unloading efficiency of port handling equipment will shorten the loading and unloading time, that is, shorten the time for lifting and lowering the hoisted goods. If the loading and unloading time is shortened, the power consumed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C13/22B66D1/46
CPCB66C19/002B66C13/26
Inventor 笠井大至栢菅信哉
Owner MITSUI E&S MACHINERY CO LTD