Active cooling rub-impact experiment feeding device and method thereof

Abstract

The invention discloses an active cooling rub-impact experiment feeding device and a method thereof, and belongs to the technical field of experiment equipment, the active cooling rub-impact experiment feeding device comprises a servo motor, the servo motor is fixedly mounted on the side wall of a base, a coupling is movably mounted at the output end of the servo motor, a hollow cooling lead screw module is arranged at one end of the coupling, and the hollow cooling lead screw module is connected with the coupling. A linear guide rail module is arranged on the upper surface of the base through a guide rail pressing sheet; according to the invention, the active cooling rub-impact tool module, the active cooling pressure, the flow regulating quantity and the active cooling time threshold are set, the temperature rise of each node is monitored and fed back in real time in the heating process of the coating plate, and when the set threshold is exceeded, the pressure and the flow supplied by a cooling medium are regulated, so that the cooling structure of key parts is realized; meanwhile, active cooling can be achieved, uncontrollable errors are eliminated, the precision of the rub-impact experiment of the aero-engine casing coating can be well guaranteed, and the safety and operability of the experiment process are improved.

Description

technical field [0001] The invention belongs to the technical field of experimental equipment, and in particular relates to an actively cooled rubbing experiment feeding device and a method thereof. Background technique [0002] Aeroengines are typical high-speed rotating machines, and they are components closely related to engine cycle life and performance. Thrust, safer, higher efficiency, lower fuel consumption and longer life, etc., the size of the radial clearance between the rotating parts of the turbine engine and the case has a great influence on the working efficiency, power and fuel consumption of the turbine, so The gap between the rotor and the stator is getting smaller and smaller, but in the transition state, due to the sudden change of the working state of the engine, the rotor and the stator will rub against each other. [0003] Severe rubbing may lead to blade breakage, rotor instability and damage to the engine structure. At the same time, the heat generat...

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Problems solved by technology

[0002] Aeroengines are typical high-speed rotating machines, and they are components closely related to engine cycle life and performance. Thrust, safer, higher efficiency, lower fuel consumption and longer life, etc., the size of the radial clearance between the rotating parts of the turbine engine and the case has a great influence on the working efficiency, power and fuel consumption of the turbine, so The gap between the rotor and the stator is getting smaller and smaller, but in the transition state, due to the sudden change in the working state of the engine, the rotor and the stator will rub against each other.

[0003] Severe rubbing may lead to blade breakage, rotor instability and damage to the engine structure. At the same time, the heat generated during the rubbing process may also cause the engine to catch fire and cause serious operating accidents. In order to reduce the sealing gap of the air path, the current common method The sealing coating is introduced in the gap part of the airflow channel of the advanced aero-engine. Since the sealing coating can improve the sealing performance between the rotating parts and the fixed parts in the engine, it has been widely used in the aviation field. Its function is to seal When the strict coating is scraped with the engine blades, it will consume all the joint amount by itself, so as to ensure that the blades will not be worn or bonded, and the blades will not be damaged while maintaining a small air passage gap to improve the performance of the engine. Provided is an actively cooled rubbing experiment feeding device and method thereof

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