Detachable lubricating oil main pipe structure for aero-engine central transmission mechanism

A technology of aero-engine and transmission mechanism, which is applied in the direction of engine lubrication, engine components, machine/engine, etc., can solve the problems of poor interchangeability of lubricating structure and high repair cost of aero-engine, so as to improve work reliability and reduce the probability of cracks Small, the effect of reducing repair costs

CN110966095AActive Publication Date: 2020-04-07SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2020-04-07

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Abstract

The invention relates to a detachable lubricating oil main pipe structure for an aero-engine central transmission mechanism and belongs to the technical field of aero-engine mechanical system design.The detachable lubricating oil main pipe structure comprises a plurality of nozzle assemblies connected through oil conveying pipes, wherein an adapter seat is arranged on oil conveying pipe, the adapter seat comprises a pipeline connecting part, two ends of the pipeline connecting part are both communicated with the oil conveying pipe, an end of the pipeline connecting part is provided with a sealing conical face used for being connected with the oil conveying pipe in a sealed mode, the pipeline connecting part is provided with a positioning hole, the oil conveying pipe is provided with a through hole corresponding to the positioning hole, and the positioning hole is connected with the through hole through a positioning pin. The detachable lubricating oil main pipe structure is advantagedin that the lubricating oil main pipe can be replaced at will when all nozzle assemblies and all pipelines have cracks and the like and need to be replaced, interchangeability of all parts of the lubricating oil main pipe is improved, and repair cost of the engine is effectively reduced.
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Description

technical field

[0001] The invention relates to the technical field of aero-engine mechanical system design, in particular to a detachable lubricating oil main pipe structure for a central transmission mechanism of an aero-engine. Background technique

[0002] Lubricating oil main pipe and casing buried pipe combined with nozzle are two main structural forms for providing lubrication to the central transmission mechanism of the aero-engine, and these two structures all have certain deficiencies in the repair of the engine. Such as figure 1 As shown in Fig. 1, for a typical lubricating oil manifold structure, it is a multi-nozzle and multi-pipe welded structure. Due to the essential vibration phenomenon in the use of the engine, the lubricating oil manifold structure is prone to cracks in the nozzles or pipelines. Or open welding faults, the repair of surface crack faults can be repaired by grinding, but there is no suitable repair method for cracks with a certain depth or o...

Examples

Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0023] In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "vertical", "upper", "lower", "front", "rear", "left", "right", The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be...