Bolt pre-tightening force degradation process real-time detection device considering high-temperature creep
A bolt pre-tightening, high-temperature creep technology, used in measuring devices, using stable tension/pressure to test material strength, testing of mechanical parts, etc. Real-time acquisition of bolt pre-tightening force degradation data, large size and other problems, to achieve the effect of low construction cost, easy maintenance and replacement, and small size
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[0029] The following are specific examples of the present invention, and further describe the technical solutions of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the following examples.
[0030] The engine rotor bolts in the high-temperature working environment, due to the high-temperature creep, cause the pre-tightening force to degrade. The maximum working temperature is 500°C, and the initial pre-tightening force is set to 15kN. Now simulate the actual working temperature, detect the degradation process of the pre-tightening force in real time, and obtain the pre-tightening force degradation curve.
[0031] The technical solution adopted in the present invention is a real-time detection device for the degradation process of the bolt pretightening force considering high temperature creep, such as figure 1 shown. The device includes three system units, which are the pre-tightening force collection system A, ...
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