Prestressed jack piston cylinder displacement measuring device and measuring and calculating method

Abstract

The invention belongs to the technical field of prestress jacks, and particularly discloses a prestressed jack piston cylinder displacement measuring device and a measuring and calculating method. The system comprises a data collecting module, a data processing module and a central processing module, and the data collecting module is used for collecting pressure and flow information of a jack hydraulic system; the input end of the data processing module is connected with the output end of the data collecting module, the data processing module is used for acquiring acquired information and performing analog-to-digital conversion and signal enhancement processing on the information, and the input end of the central processing module is connected with the output end of the data processing module; and the central processing module is used for receiving the processed information and converting the processed information to obtain the stroke displacement of a jack. According to the prestressed jack piston cylinder displacement measuring device and the measuring and calculating method, through the cooperation of the modules, accurate measurement of the stroke displacement of a piston cylinder of the jack is realized.

Description

technical field [0001] The invention belongs to the technical field of prestressed jacks, and relates to a displacement measuring device and a measurement and calculation method for a piston cylinder of a prestressed jack. Background technique [0002] In engineering construction, as a basic tool and equipment, hydraulic jacks are widely used in various scenarios, such as lifting and translation of buildings, support of engineering structures, hoisting and traction of structural parts, various types of load tests, structural Prestressing of objects, etc. Jacks for general engineering purposes usually only need to pay attention to one-sided parameter indicators during use. For example, jacking and translation only pay attention to displacement indicators, and support hoisting only pays attention to load indicators. The prestressing jack is a special jack for tensioning steel strands and other prestressing tendons. The prestressing jacks are all through-hole hydraulic double-...

AI Technical Summary

Problems solved by technology

[0005] Especially in terms of displacement measurement, at present, contact additional devices are mostly used for displacement measurement. During use, contact additional devices are easily damaged, resulting in incomplete construction data, and causing difficulties in the control of construction quality and the generation of later data reports.

Moreover, the existing displacement measuring devices are not suitable for harsh and complicated working conditions. Due to the many restrictions on the working space and occasions of harsh and complicated working conditions, it is not easy to install, the cost is high, and it is not conducive to use

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