Synchronous hydro-electric control cable force conversion system for suspender replacement and method for temporary bottom-carrying lifting device cable force conversion

Abstract

The invention provides a synchronous hydro-electric control cable force conversion system for suspender replacement. The system comprises a centralized control computer, a main control box, and multiple hydraulic pump station systems for temporary bottom-carrying lifting device cable force conversion. Each hydraulic pump station system for temporary bottom-carrying lifting device cable force conversion comprises a set of hydraulic pump stations and four jacks. A displacement sensor and a pressure sensor are installed on each jack. The four jacks are installed on a temporary bottom-carrying lifting device, and the jacks are connected with corresponding switching valves on the hydraulic pump stations through oil inflow oil pipes and oil return oil pipes respectively. The displacement sensors and the pressure sensors are in circuit connection with the main control box. The main control box is in circuit connection with each hydraulic pump station. The centralized control computer is connected with the main control box. The system can achieve automatic hydro-electric control cable force loading and unloading of the temporary bottom-carrying lifting device to complete the cable force conversion process, the automation degree is high, the synchronous control precision is high, the work efficiency is high, safety and reliability are achieved, and standardized construction is convenient.

Description

technical field [0001] The invention relates to a bridge construction machine and a construction method thereof, in particular to a synchronous hydraulic-electric control cable force conversion system for suspender replacement and a cable force conversion method for a temporary hoisting device. Background technique [0002] At present, most of the single set of temporary hoisting devices used for boom replacement are equipped with four jacks to add and unload the temporary cables. The cable force conversion method is mostly realized by manual operation of electric oil pumps and diverter valves to make multiple jacks move synchronously. The disadvantage is that the jacks There is no measuring device for displacement, and manual measurement is required with a ruler; the pressure reading of the oil pump is a mechanical oil pressure gauge, which requires manual reading; the flow rate and direction of hydraulic oil are controlled by manual operation of the oil inlet valve and oil ...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the single set of temporary hoisting devices used for boom replacement are equipped with four jacks to add and unload the temporary cables. The cable force conversion method is mostly realized by manual operation of electric oil pumps and diverter valves to make multiple jacks move synchronously. The disadvantage is that the jacks There is no measuring device for displacement, and manual measurement is required with a ruler; the pressure reading of the oil pump is a mechanical oil pressure gauge, which requires manual reading; the flow rate and direction of hydraulic oil are controlled by manual operation of the oil inlet valve and oil outlet valve; There is no communication between multiple oil pumps, manual on-site monitoring is required, and the coordination of the general command is realized through walkie-talkie communication, and the accuracy of synchronization between multiple pumps is low

In addition, there are many operators involved, and the operation process is affected by the quality of the personnel. When the jacks are not synchronized, the oil pressure and oil speed of the jacks need to be adjusted separately. The construction efficiency is low, and it is difficult to realize the cable force conversion of the fast temporary hoisting device.

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