Large low-temperature fatigue experimental device for bolt

• Main Authors: LIAO MIN, PAN CHUANJIE, SUN BAORUI, DING GUOLONG, LI PENGYUAN, CHEN HUI, KANG DAOAN, SUN JIAN, HOU BINGLIN, MA WEI
• Format: Patent
• Language: Chinese; English
• Published: 14.08.2013
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The utility model belongs to an experimental device, and particularly relates to a large low-temperature fatigue experimental device for a bolt. The large low-temperature fatigue experimental device comprises a low-temperature environmental box, wherein the low-temperature environmental box consists of a hollow cylindrical-special-vertical Dewar flask, and the upper end and the lower end of the low-temperature environmental box are respectively provided with a coaxial through hole; an upper pulling rod and a lower pulling rod are connected with a clamp system arranged in the low-temperature environmental box by the two through holes; the clamp system is used for clamping a tested experimental bolt; and the upper pulling rod and the lower pulling rod are connected with an external power source. The large low-temperature fatigue experimental device has the beneficial effect of being capable of being suitable for carrying out high-strength and large-size (the length is more than 1000mm and the diameter is more t