Large-tonnage inhaul cable testing device

Abstract

The invention relates to the technical field of engineering equipment, in particular to a large-tonnage inhaul cable testing device. The device comprises a first counter-force base, a second counter-force base, axial counter-force columns, a connecting mechanism, a loading mechanism, a tool cable and a jacking mechanism. The first counter-force base and the second counter-force base are arranged at an interval, and the first counter-force base is used for fixing one end of a test cable; the two axial counter-force columns are located between the first counter-force base and the second counter-force base. The connecting mechanism is arranged between the two axial counter-force columns in a sliding manner; the two ends of the loading mechanism abut against the connecting mechanism and the second counter-force base respectively; one end of the tool cable is connected with the connecting mechanism; the jacking mechanism is arranged on the other side of the second counter-force base, connected with the other end of the tool cable and used for applying pulling force to the tool cable. The problems that in the prior art, an actuator with large bearing capacity needs to be adopted for an inhaul cable fatigue test, under the same loading frequency, the required flow of the actuator is large, and the overall manufacturing cost of equipment is higher can be solved.

Description

technical field [0001] The invention relates to the technical field of engineering equipment, in particular to a large-tonnage cable test device. Background technique [0002] As one of the important stress-bearing components of cable-stayed bridges, cables must have good fatigue resistance under complex load factors and external environments. The cable fatigue test is the main method to study the fatigue performance of the cable, and the cable fatigue testing machine is the main tool for the cable fatigue test. At present, most of the cable fatigue testing machines in China are vertical and small-tonnage testing machines, and their functions are relatively single, and they can only perform the fatigue test operation of a single cable. [0003] The test frequency of a conventional large-tonnage cable testing machine is generally 1Hz, and the loading method of a conventional large-tonnage cable testing machine is generally a series straight-pull type (the actuator bears all ...

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Problems solved by technology

[0004] In view of the defects existing in the prior art, the purpose of the present invention is to provide a large-tonnage cable test device, which can solve the problem of using an actuator with a large bearing capacity for the cable fatigue test in the prior art, resulting in the same loading frequency In this case, the required flow rate of the actuator is large, and the overall cost of the equipment is higher.

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