Blade tenon magnetic powder detection device

Abstract

The invention discloses a blade tenon magnetic powder detection device, and belongs to the field of nondestructive detection. The blade tenon magnetic powder detection device comprises a detection table, a first magnetic core, a second magnetic core, a third magnetic core and a magnetization power supply, the first magnetic core is arranged at the top of the detection table, and each of the secondmagnetic core and the third magnetic core is L-shaped and comprises a supporting part and a winding part. The supporting part is connected with the first magnetic core, the winding part is in a suspended state, and a coil is wound on the winding part. The two ends of the coil are electrically connected with the magnetizing power supply, the winding part is provided with a magnet yoke pole head, and the magnet yoke pole heads of the second magnetic core and the third magnetic core are oppositely arranged. The magnet yoke pole head of the second magnetic core is connected with an extension block, and the extension block and the magnet yoke pole head of the third magnetic core are opposite and are arranged at intervals. The blade tenon magnetic powder detection device has an inhibiting effect on a demagnetization field, an effective magnetization field is enhanced under the condition of a strong magnetic field, and the magnetic field uniformity of the to-be-detected surface of a blade tenon is improved, so that the detection precision is improved, and the detection effect is greatly improved.

Description

technical field [0001] The invention relates to the technical field of non-destructive testing, in particular to a blade tenon magnetic particle testing device. Background technique [0002] Blades are key parts of aero-engines and gas turbines, and the quality of the parts plays a decisive role in the performance and safety of aero-engines and gas turbines. There are strict requirements. If there is a defect in the tenon, it is very likely to cause the blade to fail and break, which will have an inestimable impact on the use of aero-engines and gas turbines. At present, all aero-engines and gas turbine blades need to carry out non-destructive testing. To find defects and ensure their As a non-destructive testing method for discovering surface and near-surface defects, magnetic particle testing is widely used in the non-destructive testing of blades. [0003] The existing device adopts manual fixed magnetic yoke equipment for the magnetic particle detection of the tenon of ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a blade tenon magnetic particle detection device to solve the problem of poor detection effect due to the existence of the demagnetizing field when the existing device performs magnetic particle detection on the blade tenon

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