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Redundant control device and method for overhead travelling crane translation mechanism

A translational mechanism and redundant control technology, applied in the direction of transportation and packaging, load hanging components, etc., can solve the problems of not being able to move, not thinking, and logistics blockage, etc., to achieve strong practicability, great economic benefits, and low investment Effect

Pending Publication Date: 2019-06-11
HANDAN IRON & STEEL GROUP +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Especially when it is suddenly damaged during the operation, the hanging object is in the middle of the up and down position, and cannot be moved for a long time, which may block the entire logistics
It is urgent to find a method that can achieve continuous operation of the translation mechanism after the frequency converter of the translation mechanism fails. At present, this problem has not been considered in the design of domestic cranes, nor has it been used in practical applications.

Method used

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  • Redundant control device and method for overhead travelling crane translation mechanism

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Embodiment Construction

[0043] The present invention will be described in further detail below in conjunction with the examples.

[0044] A redundant control device for a crane translation mechanism, see figure 1 , including normally open contact 1 of the normal operation relay of No. 2 cart connected to one end of the line, normally open contact 11 of the main trolley relay, normally open contact 12 of the auxiliary trolley relay, three-position switch 2, and normally open contact of the main trolley relay Point 13, auxiliary trolley relay normally open contact 14, wherein:

[0045] Normally open contact 1 of the relay for normal operation of No. 2 cart, normally open contact 11 of the main trolley relay, and normally open contact 12 of the auxiliary trolley relay are respectively connected in series with the shift contact 15 of the master command controller of the cart and the master command controller of the main trolley Gear position contact 16, auxiliary small car owner order controller gear co...

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Abstract

The invention relates to a redundant control device and method for an overhead travelling crane translation mechanism. Converter parameters of a main small car and an auxiliary small car are input into a number 2 large car frequency converter and are optimized and identified, the redundant control device is mounted on a overhead travelling crane electrical beam, and when translation mechanism frequency converters of the main small car and the auxiliary small car fail, normal operation of the overhead travelling crane fault translation mechanism can be realized by switching a redundant selection switch. According to the redundant control device and method, under the condition of not increasing equipment investments basically, when a translation mechanism frequency converter fails and cannotbe used, the translation mechanism can continue to work thus zero effect and zero impact on production are realized, and any equipment and safety hazards are not brought.

Description

technical field [0001] This patent application belongs to the technical field of crane electrical equipment and methods, and specifically relates to a redundant control device and method for a crane translation mechanism. Background technique [0002] In the steelmaking production process of metallurgical enterprises, the transportation of production logistics and the lifting of equipment are generally realized by crane lifting. Due to the progress of control technology, the displacement of the crane's crane, main trolley, auxiliary trolley and other translational mechanisms generally adopts frequency conversion control, the start and stop are relatively smooth, the impact on mechanical equipment is small, and the control precision is high. However, once the inverter fails, it is difficult to deal with and takes a long time. It is necessary to replace the internal components of the inverter or replace the entire inverter. The time is generally more than 3 hours. The product...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C13/18B66C13/48
Inventor 马建成马懿赫马泽瑜马平川马建考
Owner HANDAN IRON & STEEL GROUP
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