Aero-engine supporting casing air tightness detection clamp and detection method
A technology for aero-engine and air-tightness detection, which is applied to combustion engines, liquid/vacuum-based liquid-tightness measurement, internal combustion piston engines, etc., to avoid missed inspections, ensure efficiency, and reduce design difficulty
Active Publication Date: 2021-02-09
CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
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Problems solved by technology
The present invention aims at proposing a jig and method for airtightness testing of supporting casings, which solves the problem of airtightness testing of multilayer complex welding of supporting casings, reduces the complexity of airtight testing operations, and does not damage the sealing structure. Under the premise of the casing structure, it can ensure the efficiency and accuracy of airtight detection while avoiding missed detection
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[0028] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment, but should not be interpreted as that the scope of the subject matter of the present invention is only limited to following embodiment, under the situation of not departing from above-mentioned technical thought of the present invention, all according to this field Various modifications, substitutions and alterations made by ordinary technical knowledge and common means are included in the scope of the present invention.
[0029] The supporting casing structure to be tested is as follows: figure 1 and figure 2 shown. The support casing is mainly composed of a support casing 1 (according to the position of the support casing 1 in the support casing, the support casing 1 can be regarded as the inner ring assembly of the support casing), an upper mounting edge 2, The front mounting edge 3 (according to the position of the front mounting edge 3 in the s...
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The invention discloses an aero-engine supporting casing air tightness detection clamp and a detection method. The detection clamp is mainly composed of a lower end face sealing assembly, an upper endface sealing assembly, a supporting plate air inlet assembly, a pressing shouldered long bolt and an adapter tube sealing assembly. During airtightness detection, sealing detection of an S cavity andthe inner cavity of an adapter tube is achieved through the sealing of the lower end face sealing assembly, the upper end face sealing assembly, the pressing shouldered long bolt and the adapter tubesealing assembly, and then airtightness of the inner cavities of support plates is detected through ventilating the support plates one by one. Through ingenious design of the tightness clamp and arrangement of the detection sequence, air tightness detection of an aero-engine supporting casing is achieved, it is guaranteed that the air tightness of all weld joints is detected, the detection efficiency is improved, and missed detection is avoided.
Description
technical field [0001] The invention belongs to the technical field of aero-engine processing and welding detection, in particular to a jig and a detection method for air-tightness detection of a support case of a turbofan engine. Background technique [0002] The supporting casing of the turbofan engine is an annular component welded by the combination of multi-layer thin-walled parts ( figure 1 , figure 2 ), the supporting casing is composed of more than 60 welded parts, and its structure is complex, with as many as 104 welds of different shapes and positions. The materials involved are mainly TA15, TC2, etc. [0003] In order to ensure the welding quality, the product requires testing the airtightness of the welds of all the cavities in the supporting casing, and no defects such as weld leakage or cracks are allowed. The sealing detection method is to seal the supporting casing and put it into water to inflate it for testing. This is It is not only necessary to seal th...
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IPC IPC(8): G01M3/06B25B11/00
CPCG01M3/06B25B11/00Y02T10/40
Inventor 李英刘雪红邱树彬王绪坚赵海
Owner CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD