Turbine engine accessory driving mechanism, application method thereof and turbine engine

Abstract

The invention discloses a turbine engine accessory driving mechanism, an application method thereof and a turbine engine. The turbine engine accessory driving mechanism comprises a spline shaft and aconnecting pipe fitting. A shaft body of the spline shaft is provided with a journal structure. The journal structure does not get buckling when an accessory driving assembly gets stagnated. The strength of the spline shaft is lower than that of a central driving assembly driving part and an accessory driving assembly driving part. According to the turbine engine accessory driving mechanism, a central driving gear and an accessory driving gear are connected through the spline shaft; the journal structure is designed on the spline shaft; according to the design, the strength of the spline shaftis lower than that of a central driving assembly and that of the accessory driving assembly to ensure that parts of the central driving assembly and the accessory driving assembly are protected by twisting off the spline shaft when the accessory driving assembly gets stagnated; and moreover, the spline shaft is formed by machining a rod, the raw material is relatively cheaper, the turbine engineaccessory driving mechanism is easier to machine, and breakdown loss is effectively reduced.

Description

technical field [0001] The invention relates to the field of turbine engines, in particular to a turbine engine accessory transmission mechanism. In addition, the present invention also relates to a use method and a turbine engine comprising the above-mentioned turbine engine accessory transmission mechanism. Background technique [0002] The degree of integration of the casing on the aero-engine continues to increase with the improvement of the manufacturing level, making the casing parts more and more complex. During the engine assembly process and after the engine test run, it is necessary to check the state of the internal parts of the engine Inspection, when a fault occurs, the faulty part needs to be replaced. Therefore, the engine assembly and disassembly process of this type of casing parts is cumbersome and takes a long time to operate. When an accessory on an aeroengine extracts power from the main shaft of the engine, it needs to go through a gear train in the ac...

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Problems solved by technology

[0003] The invention provides a turbine engine accessory transmission mechanism, its use method and a turbine engine to solve the technical problem of damage to rotor parts such as gears or bearings when the existing accessory transmission fails.

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