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A gear box test bench

A gear box and test bench technology, applied in the testing of mechanical components, testing of machine/structural components, instruments, etc., can solve the problems of high cost and high cost, and achieve the effect of reducing processing costs

Active Publication Date: 2021-05-25
AECC COMML AIRCRAFT ENGINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, for the gearbox of the tens of megawatts of aero-engine power, it is expensive to manufacture an additional identical gearbox for testing, which will lead to extremely high testing costs

Method used

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  • A gear box test bench
  • A gear box test bench
  • A gear box test bench

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with specific embodiment and accompanying drawing, set forth more details in the following description so as to fully understand the present invention, but the present invention can obviously be implemented in many other ways different from this description, Those skilled in the art can make similar promotions and deductions based on actual application situations without violating the connotation of the present invention, so the content of this specific embodiment should not limit the protection scope of the present invention.

[0030] It should be noted that the drawings are only examples, and should not be taken as limiting the protection scope of the actual claims of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "first" and "second" are used for description purposes only, and should not be understood as indicating or implying relative i...

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Abstract

A gearbox test bench, characterized in that the test bench includes a closed power flow system, a drive device and a loading device; the drive device is used to provide the power consumed by the test bench to run and drive the closed power flow system to run , the loading device is used to apply torque to the power flow closed system; the power flow closed system includes: a first branch, the first branch includes a test gearbox, a test gearbox, the test gear The box includes a first output shaft; a second branch, the second branch includes the pilot gearbox, a variable transmission ratio assembly, the variable transmission ratio assembly includes the second output shaft; the pilot gear A box receives input from the drive means, and the first output shaft is directly or indirectly connected to the second output shaft.

Description

technical field [0001] The invention relates to the field of aero-engine tests, in particular to a gearbox test stand. Background technique [0002] Since the high bypass ratio twin-rotor turbofan engine was put into use in the early 1970s, limited by the tangential speed of the fan blade tip, the low-pressure compressor and low-pressure turbine connected to the fan can only operate at a low speed, resulting in an increase in the number of compressor stages , heavy and inefficient. In order to solve the above problems, a suitable fan drive gearbox (Fan Drive Gear System, FDGS) can be installed between the low-pressure rotor composed of a low-pressure compressor and a low-pressure turbine and the fan rotor, so that the fan rotor works at low speed, and the low-pressure The rotor works at a high speed, that is, a geared turbofan engine (Geared Turbofan, GTF). [0003] The low pressure shaft of the GTF is connected to the fan by a fan drive gearbox. The transmission part of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/021G01M13/025
CPCG01M13/021G01M13/025
Inventor 覃琨冯金刘晓凡
Owner AECC COMML AIRCRAFT ENGINE CO LTD