Large-capacity sample bearing device for hollow turbine blade detection

Abstract

The invention discloses a large-capacity sample bearing device for hollow turbine blade detection, the device comprises a plurality of blade clamping boxes, a clamping box mounting rack and a two-dimensional moving mechanism, the plurality of blade clamping boxes are mounted on the clamping box mounting rack, the clamping box mounting rack is mounted on the two-dimensional moving mechanism, and the blade clamping boxes can clamp a plurality of blades at a time. According to the large-capacity sample bearing device for hollow turbine blade detection, a plurality of hollow turbine blades can be placed at a time, so that the blade detection efficiency is improved, operators are prevented from entering a shielding chamber for multiple times, the risk that the operators are radiated and the waste of neutron beams are reduced, the blades are clamped by adopting the blade clamping boxes, the stability of the hollow turbine blade in the detection process is guaranteed, and the turbine blade placed on the blade box placing frame is located in a neutron photography detection view field in cooperation with the two-dimensional moving mechanism.

Description

technical field [0001] The invention belongs to the field of neutron non-destructive testing, in particular to a sample carrying device for testing hollow turbine blades. Background technique [0002] Turbine blades are an important part of aero-engines. They are located in the parts of aero-engines with the highest temperature, the most complex stress, and the harshest environment. Therefore, they are known as "the jewel in the crown". In order to improve the high-temperature performance of the turbine blade, a large number of fine flow channels are usually provided inside the turbine blade, and the turbine blade provided with fine flow channels is a hollow turbine blade. Hollow turbine blades are usually produced by investment casting. Due to the relatively fine internal flow passages, it is impossible to directly determine whether there are residual ceramic cores in the flow passages after the manufacturing is completed, so it must be further inspected. [0003] At prese...

AI Technical Summary

Problems solved by technology

The existing hollow turbine blade neutron photography detection sample stage generally adopts a one-dimensional movement method to adjust the detection object. Since the hollow turbine blade is directly placed on the detection sample stage, it is easy to cause the turbine blade to vibrate during the moving process of the sample stage. And the phenomenon of dumping, at this time, the operator needs to close the neutron beam again and enter the shielding room to lift the blade

It is not difficult to see from the above detection process that the operator must enter the shielding room multiple times for the detection of the residual core of the hollow turbine blade. The greater the amount of radiation received, and in the prior art, only 3 to 5 blades can be detected at a time due to the limitation of the neutron field of view. If a large number of blades are to be detected, the above detection process needs to be repeated many times. Undoubtedly increased the number of times operators enter the shielding room, and the waste of neutron sources

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