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Positioning control method for large-capacity portal crane

A gantry crane and positioning control technology, which is applied in the direction of cranes, trolley cranes, load hanging components, etc., can solve the problems that the deformation data of the gantry crane gantry cannot be obtained, and the precise positioning of the gantry crane cannot be realized. Good performance, precise positioning and high control precision

Pending Publication Date: 2021-04-06
SINOHYDRO JIAJIANG HYDRAULIC MACHINERY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the deformation data of the gantry crane cannot be obtained, and the precise positioning of each point of the gantry crane cannot be realized

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A positioning control method for a large-capacity gantry crane, comprising the following steps:

[0028] a. Install two side-by-side rails under the rigid door leg on one side of the gantry crane, and install three wheels on the rigid door leg. Two wheels are in contact with one rail, and the last wheel is in contact with the other rail. Install the encoder on the top, and install the magnetic steel on the side of the track;

[0029] b. Position sensors are installed on the trolley and the track, and the data monitored by the position sensors are transmitted to the PLC controller, and the PLC controller calculates and analyzes the data;

[0030] c. Install the detection stress sensor on the main beam, door leg, end beam and lower beam of the gantry. The detection stress sensor is used to detect the data of each point on the gantry crane during the operation process. According to the position of the trolley and the lifting weight, the mast is simulated, the data obtaine...

Embodiment 2

[0034] A positioning control method for a large-capacity gantry crane, comprising the following steps:

[0035] a. Install two side-by-side rails under the rigid door leg on one side of the gantry crane, and install three wheels on the rigid door leg. Two wheels are in contact with one rail, and the last wheel is in contact with the other rail. Install the encoder on the top, and install the magnetic steel on the side of the track;

[0036] b. Position sensors are installed on the trolley and the track, and the data monitored by the position sensors are transmitted to the PLC controller, and the PLC controller calculates and analyzes the data;

[0037] c. Install the detection stress sensor on the main beam, door leg, end beam and lower beam of the gantry. The detection stress sensor is used to detect the data of each point on the gantry crane during the operation process. According to the position of the trolley and the lifting weight, the mast is simulated, the data obtained ...

Embodiment 3

[0042] A positioning control method for a large-capacity gantry crane, comprising the following steps:

[0043] a. Install two side-by-side rails under the rigid door leg on one side of the gantry crane, and install three wheels on the rigid door leg. Two wheels are in contact with one rail, and the last wheel is in contact with the other rail. Install the encoder on the top, and install the magnetic steel on the side of the track;

[0044] b. Position sensors are installed on the trolley and the track, and the data monitored by the position sensors are transmitted to the PLC controller, and the PLC controller calculates and analyzes the data;

[0045] c. Install the detection stress sensor on the main beam, door leg, end beam and lower beam of the gantry. The detection stress sensor is used to detect the data of each point on the gantry crane during the operation process. According to the position of the trolley and the lifting weight, the mast is simulated, the data obtaine...

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Abstract

The invention discloses a positioning control method for a large-capacity portal crane, and belongs to the technical field of cranes. The positioning control method is characterized by comprising the following steps that a, two parallel rails are mounted below a rigid door leg on one side of the portal crane, and three wheels are mounted on the rigid door leg; b, position sensors are arranged on a walking trolley and the rails, and a PLC calculates and analyzes data; c, detection stress sensors are mounted on a main beam, the door leg, an end beam and a lower cross beam of a portal, analog simulation is conducted on the portal, data obtained through simulation analysis and data on the stress sensors are checked, and deformation data of the portal are obtained through interpolation calculation; and d, the PLC comprehensively calculates and analyzes the data, and the running state of the portal crane is obtained. According to the positioning control method, the deformation data of the portal crane can be obtained, all points of the portal crane are accurately positioned, the whole control process is simple, adaptability is good, and control precision is high.

Description

technical field [0001] The invention relates to the technical field of cranes, in particular to a positioning control method for a large-capacity gantry crane. Background technique [0002] At present, most gantry cranes control the gantry cranes by using the ground commander and the machine to operate the gantry cranes, especially some gantry cranes with large spans, using one rigid and one flexible leg or one rigid and half flexible leg. . When the gantry crane lifts heavy objects, the deformation of the whole gantry frame is relatively large, and the precise positioning of each point of the gantry crane cannot be realized. With the continuous development of science and technology, precise positioning is also required on some large-capacity gantry cranes, and it is difficult to accurately position large-capacity gantry cranes with the existing technology. [0003] The Chinese patent document whose publication number is CN 103612989A and whose publication date is March 05...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C19/00B66C13/22B66C13/16B66C13/48
CPCB66C19/00B66C13/22B66C13/16B66C13/48
Inventor 曾文黄文峰杨芳蒋从军范如谷李欣欣张建杨伟
Owner SINOHYDRO JIAJIANG HYDRAULIC MACHINERY
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