Near-far double-end aligning device

Abstract

The invention discloses a near-far double-end aligning device. The near-far double-end aligning device comprises clamp assemblies, main body assemblies and an extensometer assembly, wherein the two clamp assemblies comprise an upper clamp assembly and a lower clamp assembly which are located on the upper side and the lower side of a plate-shaped sample correspondingly, the upper clamp assembly and the lower clamp assembly are used for clamping the upper end and the lower end of the plate-shaped sample correspondingly, the two main body assemblies comprise an upper main body assembly located on the upper side of the upper clamp assembly and a lower main body assembly located on the lower side of the lower clamp assembly, the upper main body assembly is used for pulling the upper clamp assembly upwards, the lower main body assembly is used for pulling the lower clamp assembly downwards, the upper main body assembly and the lower main body assembly each comprise a tenon rod, and a first main body, a second main body and a third main body which are sequentially connected in a vertical direction, and the extensometer assembly comprises a ceramic rod and an extensometer used for measuring deformation of the ceramic rod. Compared with the prior art, the aligning device provided by the invention can realize multiple angle adjustments, finally enables the plate-shaped sample to be in a vertical state, and avoids the problems of inaccurate data, resource waste and the like.

Description

technical field [0001] The invention relates to the technical field of creep test devices, in particular to a near-distal double-end centering device. Background technique [0002] As the turbine inlet temperature of advanced aero-engines continues to increase in recent years, the turbine blades, which are key components of aero-engines, are also subjected to higher temperatures. This problem is usually achieved with nickel-based single crystal superalloys with higher temperature capability and complex blade cooling structures. At present, high-pressure turbine single-crystal blades mostly adopt a super-air-cooled double-wall structure, and the thinnest wall thickness can reach the order of 0.5mm. Therefore, it is urgent to conduct high-temperature creep tests on thin-wall structure specimens to test their high-temperature performance. [0003] Creep of metal materials refers to the phenomenon of slow plastic deformation of materials under high temperature and constant load...

AI Technical Summary

Problems solved by technology

When testing thin-walled parts with a small cross-sectional area, only a small load needs to be applied to the creep machine, and when the creep test is performed under a lower load, due to the structure of the creep machine and the self-weight of the fixture, the lever type The lever system of the high temperature durable creep testing machine cannot obtain sufficient force transmission, so it cannot ensure that the upper and lower rods of the testing machine are on the same vertical line

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