Tool and method for checking functions of propeller speed regulating mechanism
A speed regulating mechanism and function inspection technology, applied in the testing of machine/structural components, engine testing, measuring devices, etc.
Active Publication Date: 2020-09-18
CHINA HANGFA SOUTH IND CO LTD
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Problems solved by technology
[0004] The invention provides a tooling and method for functional inspection of a propeller speed regulating mechanism to solve the technical problem that the current propeller speed regulating mechanism cannot perform normal propeller function and reverse propeller function inspection under the ground state
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[0035] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in various ways defined and covered below.
[0036] Such as Figure 1 to Figure 5 As shown, the preferred embodiment of the present invention provides a tool for functional inspection of the propeller speed regulating mechanism, which is used to check whether the propeller speed regulating mechanism can meet the forward propeller function requirements and reverse propeller function requirements of the test run stage at the ground stage, without The forward propeller function and reverse propeller function of the propeller speed regulating mechanism can be checked by installing the engine on the test bench, which is conducive to earlier detection of faults and repairs of the propeller speed regulating mechanism, and reduces the inspection workload in the test run stage. The tooling for functional inspection o...
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The invention discloses a tool and a method for checking functions of a propeller speed regulating mechanism. The invention discloses a tool and a method. An angle measuring disc is fixed on a propeller speed regulating mechanism; 360-degree scale lines on the angle measurement disc are used as angle measurement references; the handheld torque wrench rotates to drive the connecting rod mechanism to rotate; therefore, the movement stroke of the connecting rod mechanism is checked; the rotating angle is determined by rotating the pointer on the bent rod relative to the position of the 360-degreescale line; whether a pointer of a fuel regulation power indicator of the engine reaches 90 degrees or not is checked when the pointer clockwise rotates to a 62-degree position; whether a pointer ofa fuel regulation power indicator of the engine reaches more than 80 degrees or not is checked when the fuel regulation power indicator rotates anticlockwise to a position of 44 degrees; therefore, the forward propeller function inspection and the reverse propeller function inspection of the propeller speed regulation mechanism can be completed without installing an engine on a test bed for inspection, faults of the propeller speed regulation mechanism can be found earlier and repaired, and test run is reduced.
Description
technical field [0001] The invention relates to the technical field of propeller testing, in particular to a tool for functional inspection of a propeller speed regulating mechanism, and also relates to a method for using the tooling to perform functional inspection of a propeller speed regulating mechanism. Background technique [0002] Before the test run of the turboprop engine bench, it is necessary to adjust the propeller speed control system in the state of loading on the ground to check whether it can meet the maximum forward propeller function and the maximum reverse propeller function during the test run. And because the propeller speed regulating mechanism system of this type of engine is complicated, it is made up of a whole set of cam spring linkage mechanism, and the adjustment part is only a short spline shaft, which cannot be rotated flexibly without the aid of tools. [0003] At present, there is no reliable means of adjusting the propeller speed regulating m...
Claims
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IPC IPC(8): G01M15/14G01M15/02
CPCG01M15/14G01M15/02
Inventor 阳为民何章龙黎小明汤释然黄炯邓伟刘利萍
Owner CHINA HANGFA SOUTH IND CO LTD