Multi-duct rotor-stator structure rotor blade dynamic clearance measurement structure
A technology of rotor blades and rotor stators, which is applied in the field of dynamic gap measurement structure of rotor blades with multi-duct rotor stator structure, which can solve the problems of affecting measurement accuracy, affecting engine performance, complex structure, etc.
Pending Publication Date: 2021-09-14
AECC SHENYANG ENGINE RES INST
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Problems solved by technology
[0004]
1) The structure is complex, the cost is high, and it is difficult to assemble;
[0005]
2) During the measurement, the working fluid leakage is prone to occur, and after the measurement is completed, there is a lack of reliable blocking measures, which affects the performance of the engine;
[0006]
3) It is difficult to adjust the distance between the gap measurement sensor probe and the tip of the rotor blade when the gap measurement sensor probe is supported by a cantilever, and it is prone to vibration, which affects the measurement accuracy;
Method used
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[0036] In order to make the technical solution of the present application and its advantages clearer, the technical solution of the present application will be further clearly and completely described in detail below in conjunction with the accompanying drawings. It can be understood that the specific embodiments described here are only part of the application Examples are only used to explain the present application, not to limit the present application. It should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, and other relevant parts can refer to the general design. In the case of no conflict, the embodiments in the application and the technologies in the embodiments Features can be combined with each other to obtain new embodiments.
[0037] In addition, unless otherwise defined, the technical terms or scientific terms used in the description of the application shall have the usual meanings und...
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The invention relates to a multi-duct rotor-stator structure rotor blade dynamic clearance measurement structure, and the structure comprises an outer side stator casing which is provided with an outer side stator casing measurement hole, an inner side stator casing positioned on the inner side of the outer side stator casing, multiple stator blades distributed between the outer side stator casing and the inner side stator casing in the circumferential direction, a rotor casing positioned on the inner side of the inner side stator casing, multiple rotor blades distributed in the rotor casing in the circumferential direction, a gap measurement sensor, a branch pipe, and a measurement pressing cap; a probe of the gap measuring sensor is arranged at one end of the branch pipe, a lead of the gap measuring sensor is led out from the other end of the branch pipe, the end, provided with the probe, of the branch pipe sequentially penetrates through the outer side stator casing measurement hole and the inner side stator casing measurement hole, and the probe is pressed into the rotor casing measurement hole; the measurement pressing cap is provided with a lead hole, is screwed in the outer side stator casing measurement hole, and presses one end of the branch pipe leading out the lead, so that the end, provided with the probe, of the branch pipe abuts against the outer wall of the rotor casing; and the lead is led out from the lead hole.
Description
technical field [0001] The application belongs to the technical field of dynamic clearance measurement of rotor blades with a multi-duct rotor-stator structure, and in particular relates to a dynamic clearance measurement structure for rotor blades with a multi-duct rotor-stator structure. Background technique [0002] There is a multi-duct rotor-stator structure in the engine. A specific multi-duct rotor-stator structure includes an outer stator casing, an inner stator casing located in the outer stator casing, and a rotor casing located in the inner stator casing. Among them, a plurality of stator blades are distributed along the circumferential direction between the outer stator casing and the inner stator casing, and a plurality of rotor blades are distributed along the circumferential direction in the rotor casing. [0003] In the engine test, it is necessary to measure the dynamic clearance of the rotor blades in the above-mentioned multi-ducted rotor-stator casing str...
Claims
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Login to View More IPC IPC(8): G01B21/16
CPCG01B21/16
Inventor 王佳莹王继业王坤郑海亮苏里
Owner AECC SHENYANG ENGINE RES INST