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Intelligent horizontal cable releasing method

A horizontal and cable reel technology, applied in program control, instrument, program control in sequence/logic controller, etc., can solve problems such as data cannot be saved, human resources are consumed, and operation is inconvenient.

Active Publication Date: 2011-04-27
SHANGHAI PUJIANG CABLE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traction force, reverse force and traction speed of the cable strands directly affect the construction quality and construction progress of the cable strand erection. The original manual control of the cable release method uses manual operation for the hydraulic machine and the motor, which consumes manpower. resources and it is extremely inconvenient to operate, and the data cannot be saved

Method used

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Embodiment Construction

[0020] Such as figure 1 An "intelligent horizontal cable-laying method" for the main cable of a suspension bridge, using PLC control, can display, save, and control various data during the cable-laying process. Realization: automatic and manual cable release, release cable according to the set speed and resistance, automatically adjust and record the height of the guide wheel, emergency stop, measure and record the length and speed of cable release, display and record the motor current and oil pressure of the hydraulic machine , oil temperature.

[0021] Monitor the traction force, counter-pull force and traction speed during the unwinding process of the suspension cable strands, and digitally display and save the key data, and make a graph. The traction force is provided by the tension sensor 1, and is input to the PLC console 2 through wireless transmission, and finally input to the computer 3 for storage. The anti-pull force is provided by the friction force of the hydrau...

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PUM

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Abstract

The invention relates to mounting of a cable used for bridges and structures, in particular to an intelligent cable releasing method. PLC (programmable logic control) control is adopted, so as to display, store and regulate various data in cable releasing process. The method comprises the steps as follows: selecting an automatic or manual cable releasing mode; releasing a cable according to the set velocity and resistance; automatically regulating and recording the height of a guide pulley, wherein emergency stop can be realized; measuring and recording the released length and releasing speedof the cable; and displaying and recording oil press motor current, oil pressure and oil temperature. Tractive force, counter pull and pulling speed in the suspension cable band releasing process aremonitored in real time, and key data are displayed and stored, so as to draw a curve graph. The invention can realize high quality and high efficiency for cable releasing construction.

Description

technical field [0001] The invention relates to cable installation for bridges and structures, in particular to an intelligent cable-laying method. Background technique [0002] In the construction process of the suspension bridge, the release and erection of the suspension cable strands is a critical link. During the traction process of the cable strands, it is necessary to exert anti-pull force on the strands, pay attention to the traction speed, system operation status and key parts and adjust them in time. It can be seen that there are many uncertain factors in the process of laying the rope, such as: the collapse of the tape, the drum wire of the rope, the change of the construction environment and so on. However, the traction force, reverse force and traction speed of the cable strands directly affect the construction quality and construction progress of the cable strand erection. The original manual control of the cable release method uses manual operation for the hy...

Claims

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Application Information

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IPC IPC(8): E01D21/00G05B19/05G05B19/048
Inventor 张海良李刚罗国强顾庆华俞建群
Owner SHANGHAI PUJIANG CABLE
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