Hydraulic fatigue testing machine suitable for tunnel protection door

Abstract

The invention discloses a hydraulic fatigue testing machine suitable for a tunnel protection door and belongs to the technical field of tunnel protection doors. By correspondingly arranging a magneticworking table, a protection door clamping assembly, an attraction member, a hydraulic cylinder assembly and other structures, the stable clamping of the tunnel protection door is achieved through theprotection door clamping assembly, and the attraction member ensures that the attraction member and the tunnel protection door form a unified stress body in the fatigue testing process, and the fatigue test of the tunnel protection door is accurately achieved. The hydraulic fatigue testing machine suitable for the tunnel protection door is simple in structure, simple and easy to control, strong in fatigue test scheme diversity and high in test result accuracy, can not only achieve the fatigue test of a metal tunnel protection door, can also effectively achieve the fatigue test of a non-metaltunnel protection door and has a better popularization and application value, the applicable range of hydraulic fatigue testing machine is greatly widened, and the cost for the tunnel protection doorfatigue test is reduced.

Description

technical field [0001] The invention belongs to the related technical field of tunnel protective doors, and in particular relates to a hydraulic fatigue testing machine suitable for tunnel protective doors. Background technique [0002] With the continuous development of my country's high-speed railways, more and more railway tunnels are used, and the mileage is getting longer and longer. During the operation of the tunnel, due to the relatively closed space in the tunnel, it is difficult to deal with a fire in the tunnel, and the evacuation and rescue work of personnel is more difficult than in non-tunnel sections. Therefore, evacuation passages are often added in the tunnel to ensure the efficiency of emergency evacuation, and corresponding tunnel protective doors are set to separate the evacuation passage and the train track area of ​​the tunnel; in addition, communication, signal, power, etc. The storage door openings of the equipment are generally separated from the tr...

AI Technical Summary

Problems solved by technology

Although the above method can realize the test of the fatigue limit of the tunnel protective door to a certain extent, it also has many defects. For example, there is a certain risk in the explosion impact test, the power and range of the explosion are difficult to control, and the accuracy of the fatigue test is very low. Difficult to control; at the same time, the cycle period of the explosion impact test is poorly adjustable, and it is difficult to effectively simulate the impact fatigue state of the protective door in the actual environment, resulting in poor accuracy and low reliability of the test results, and there are certain limitations

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