Voltage Stabilizers for Structural Testing

Abstract

The invention discloses a voltage stabilizing device, in particular discloses a voltage stabilizing device for structural tests, and belongs to the technical field of design and manufacture of test devices. Provided is a pressure stabilizing device for structural tests that can effectively reduce oil pressure fluctuations in a serial jack hydraulic system, thereby improving the accuracy of test results. The voltage stabilizing device includes a voltage stabilizing jack connected in series on the oil circuit of the hydraulic loading system, and the voltage stabilizing device also includes a set of self-balancing load system, and the loads at both ends of the voltage stabilizing jack pass through the self-balancing load system according to the The oil pressure on the oil circuit of the hydraulic loading system can be adjusted automatically. The voltage stabilizing device adopting the structure does not need to set up a special equipment foundation; it also has the characteristics of small space occupation, light weight, low labor intensity and convenient operation.

Description

Technical field [0001] The invention relates to a voltage stabilizing device, in particular to a voltage stabilizing device used for structural tests, and belongs to the technical field of design and manufacture of test devices. Background technique [0002] Structural test is a common method for researching and developing engineering structure calculation analysis and design theory. In structural tests, it is usually necessary to apply a constant vertical force on the top of the structure. This vertical force is usually applied by a series jack hydraulic system. The so-called tandem jack hydraulic system consists of an oil source, a stabilizing jack, a loading jack and a tandem tubing. During the low-cycle repeated load test, the top of the structure will have repeated horizontal side shifts. Such repeated horizontal side shifts will cause oil pressure fluctuations in the hydraulic system of the loading jack, resulting in unstable vertical force applied by the loading jack. Th...

AI Technical Summary

Problems solved by technology

During the low-cycle repeated load test, the top of the structure will produce repeated horizontal side shifts, which will cause fluctuations in the oil pressure in the hydraulic system of the loading jack, resulting in instability of the vertical force exerted by the loading jack, This will affect the test results

In the existing operation, the structural test voltage stabilizing devices used by various colleges and universities, research institutions and scientific research institutes usually use lever-type voltage stabilizing devices, and it is necessary to rely on manual input to the end of the lever-type voltage stabilizing device during the experiment. Place enough counterweights in the hanging basket to balance the oil pressure in the oil circuit of the jack to solve the problem of vertical force instability

This kind of lever-type voltage stabilizing device is usually 5-6m long, which not only takes up a lot of space, but also has a heavy structure weight and is difficult to carry; moreover, during the voltage stabilizing process during the test, it is necessary to manually add or reduce counterweights to the hanging basket. Ensure that the oil pressure of the series jack hydraulic system is stable, so that the labor intensity of the staff is high. At the same time, the operation of increasing or decreasing the counterweight will also cause the oil pressure to be extremely unstable, which will affect the test results.

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