Assembly method of fuel gas generator rotor
A technology of a gas generator and an assembly method, which is applied in the direction of gas turbine engine testing, jet engine testing, machine/structural component testing, etc. Avoid damaging effects
Pending Publication Date: 2021-07-09
CHINA HANGFA SOUTH IND CO LTD
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Problems solved by technology
[0004] The method for assembling the rotor of the gas generator provided by the present invention is to solve the technical problem that after the rotor of the existing gas generator is assembled, there is a high probability of fundamental frequency vibration during the test run of the whole machine
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[0025] 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 many different ways as defined and covered below.
[0026] figure 1 is a schematic structural diagram of a gas generator rotor in the prior art; figure 2 is a flow chart of a method for assembling a gas generator rotor according to a preferred embodiment of the present invention; image 3 It is a schematic structural diagram of the primary assembly during the assembly process of the gas generator rotor according to the preferred embodiment of the present invention; Figure 4 It is a schematic structural diagram of the transition assembly during the assembly process of the gas generator rotor according to the preferred embodiment of the present invention; Figure 5 It is a schematic structural diagram of the final gas generator rotor of the preferred embodiment of the present invention.
[0027] like ...
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The invention discloses an assembly method of a fuel gas generator rotor. The assembly method comprises the following steps of S101, assembling a gas compressor rotor and a center pull rod to form a primary assembly, S102, performing run-out inspection on the primary assembly, and judging whether the run-out of the primary assembly is qualified or not, S103, when the run-out of the primary assembly is qualified, assembling a balance clamp used for simulating the actual use state of the gas turbine rotor on a center pull rod of the primary assembly, and jointly combining the balance clamp and the center pull rod to form a transition assembly, S104, performing dynamic balance inspection on the transition assembly, and judging whether the dynamic balance of the transition assembly is qualified or not, S105, when the dynamic balance of the transition assembly is qualified, removing a balance clamp on the transition assembly, and forming a secondary assembly, and S106, assembling a gas turbine rotor on the center pull rod of the secondary assembly, and forming an ultimate gas generator rotor assembly. According to the assembly method of the fuel gas generator rotor, after the fuel gas generator rotor is assembled, the probability of fundamental frequency vibration is small during test run of a whole machine.
Description
technical field [0001] The invention relates to the technical field of aero-engine assembly, in particular, to a method for assembling a gas generator rotor. Background technique [0002] The fundamental frequency (Ng fundamental frequency) vibration of the gas generator rotor often occurs during the aero-engine commissioning process, which is difficult to rule out and severely restricts the progress of engine research and production. [0003] like figure 1 As shown, the gas generator rotor of a certain type of engine is composed of axially arranged compressor rotor and gas turbine rotor. The circular arc end teeth are used for centering and torsion transmission between the discs. In the prior art, there is a lack of a unified assembly method for the rotor of the gas generator, and the assembly quality of the rotor of the compressor is difficult to control during the assembly of the rotor of the gas generator, resulting in a large amount of unbalance and poor runout after ...
Claims
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Login to View More IPC IPC(8): G01M15/14G01M1/16G01B5/00
CPCG01M15/14G01M1/16G01B5/003
Inventor 黄晓鸣覃莺胡亚飞庞文婷彭军李湘海
Owner CHINA HANGFA SOUTH IND CO LTD