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Garbage grab bucket crane and anti-swinging control method

An anti-sway and crane technology, applied in the field of anti-sway, to achieve the effect of stable and reliable operation

Active Publication Date: 2012-11-14
WUHAN KATTOR IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a garbage grab crane and an anti-swing control method to overcome the problem that the garbage grab bridge crane often swings greatly during operation, and to ensure the stable and reliable operation of the garbage grab crane

Method used

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  • Garbage grab bucket crane and anti-swinging control method
  • Garbage grab bucket crane and anti-swinging control method

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Embodiment Construction

[0018] Among them, such as figure 1 As shown, the anti-swing structure of the garbage grab crane includes a PLC1, a frequency converter 3 and a motor 4. The PLC has a built-in anti-swing function module 2, and the PLC input port of the anti-sway function module inputs the speed analog value of each gear of the crane. value, the PLC output interface of the anti-swing function module is connected to the frequency converter, the frequency converter is connected to the motor and the parameter "acceleration" on the frequency converter is set to "0", and the anti-sway function module performs calculation on the input speed analog value Finally, the data is transmitted to the frequency converter, and the frequency converter sets the speed of the motor according to the data input from the anti-swing function module to control the motor to work. The PLC output interface of the anti-swing function module is connected to the frequency converter with a shielded wire, or a wireless communi...

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Abstract

The invention discloses a garbage grab bucket crane, which comprises a PLC (programmable logic controller), a frequency converter and a motor, wherein an anti-swinging function module is arranged in the PLC, an output end interface of the anti-swinging function module is connected with the frequency converter, the anti-swinging function module carries out operation on the input speed analog quantity value and then transmits the data to the frequency converter, and the rotating speed of the motor is set by the frequency converter according to the data input from the anti-swinging function module for controlling the work of the motor. The anti-swinging function module is built in the PLC, only the speed analog quantity value of each gear needs to be set in the PLC, and the small-amplitude swinging or no swinging can be realized during the high-speed operation of the garbage grab bucket crane through the function block operation. Therefore, the problem of large-amplitude swinging often generated during the operation of the garbage grab bucket crane is solved, and the stable and reliable operation of the garbage grab bucket crane is ensured.

Description

technical field [0001] The invention relates to the anti-sway technology of a bridge crane, in particular to the anti-sway technology on a garbage grab bridge crane with a frequency converter and a PLC. Background technique [0002] The current garbage grab bridge cranes are not equipped with a special anti-sway system. When working, it relies on the worker's operating experience or combines the frequency converter to adopt a slow stepless speed regulation method when starting and stopping, accelerating and decelerating. , In theory, the swing can be reduced, but the latter will inevitably reduce work efficiency, while the former will inevitably make the driver highly stressed, and the electrical components will be greatly impacted and have a short life. Due to the influence of the operating conditions of the garbage grab bridge crane, it is not suitable for installing an encoder to control the output frequency of the frequency converter or to measure the length of the wire ...

Claims

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Application Information

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IPC IPC(8): B66C13/06B66C13/22B66C13/48
Inventor 陈敏兆周晓艳盛志略杜晓亮林元楚何阳月
Owner WUHAN KATTOR IND
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