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Oblique central transmission frame assembly used for aircraft engine and aircraft engine

A technology for aero-engines and transmission frames, which is applied to transmission parts, transmissions, gear transmissions, etc., can solve problems such as the inability to guarantee the reliability of connection transmissions, improve independence and reliability, meet assembly requirements, reduce The effect of structure size

Active Publication Date: 2017-09-29
CHINA HANGFA SOUTH IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides an oblique drive frame assembly and an aero-engine for an aero-engine to solve the technical problem that the reliability of component connection and transmission cannot be guaranteed in the existing aero-engine at an oblique turning position

Method used

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  • Oblique central transmission frame assembly used for aircraft engine and aircraft engine
  • Oblique central transmission frame assembly used for aircraft engine and aircraft engine

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Embodiment Construction

[0022] 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.

[0023] Such as figure 1 with figure 2 As shown, the slanted drive frame assembly for aero-engines in this embodiment includes a cone-shaped basin-shaped bracket 1. The cone-shaped basin-shaped bracket 1 includes a large end surface 101, a small end surface 102, and an inclined side surface 103. The cone-shaped basin-shaped The inside of the bracket 1 is a hollow cavity, and the large end surface 101 of the tapered basin-shaped bracket 1 is provided with a first bearing seat hole 1011 for assembling the driving bevel gear 2 along the tapered basin-shaped bracket 1 at the axial center position, and the tapered basin-shaped bracket 1 The large end surface 101 of 1 is provided with a cantilever bearing seat 4 for assembling the passive arc bevel gear 3 meshing with ...

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Abstract

The invention discloses an oblique central transmission frame assembly used for an aircraft engine and the aircraft engine. The oblique central transmission frame assembly used for the aircraft engine comprises a conical basin-shaped support. The conical basin-shaped support comprises a large end surface, a small end surface and an oblique side surface. A hollow inner cavity is formed in the conical basin-shaped support. A first bearing pedestal hole used for assembling a drive bevel gear along the conical basin-shaped support is formed in the axial center of the large end surface of the conical basin-shaped support. The large end surface of the conical basin-shaped support is provided with a cantilever bearing pedestal used for assembling a driven circular-arc bevel gear in conical tooth engagement with the drive bevel gear. The cantilever bearing pedestal inclines towards the central axis of the conical basin-shaped support and overhangs on the large end surface of the conical basin-shaped support. The cantilever bearing pedestal is provided with a second bearing pedestal hole used for assembling the driven circular-arc bevel gear. The bearing hole in the cantilever bearing pedestal is small in stress, and stress of all components of the oblique central transmission frame assembly should meet strength requirements. By adoption of the form of the oblique transmission assembly, the output power of the oblique central transmission frame assembly approximately triples that of up-down vertical transmission.

Description

technical field [0001] The invention relates to the technical field of aero-engine accessory transmission, in particular to a slant-center transmission frame assembly for an aero-engine. In addition, the present invention also relates to an aero-engine comprising the above-mentioned oblique drive frame assembly for an aero-engine. Background technique [0002] The overall structural characteristics of the aero-engine determine the necessity for the transmission shaft to extract mechanical power through the airflow channel support plate. There are two inclinations of the rotating shaft in the support plate of the airflow channel of the engine: axial inclination and radial inclination, and the angle depends on the external space where the accessories are installed. For example, accessories are arranged between the inner and outer ducts and outside the outer ducts. There is a favorable space, but it is difficult for the transmission to reach. [0003] A certain type of turbop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/14F16H57/021F16H57/023F16H57/038F16H57/04
CPCF16H1/14F16H57/021F16H57/023F16H57/038F16H57/0424F16H57/0456F16H57/0493
Inventor 刘飞亭赵静周娇君
Owner CHINA HANGFA SOUTH IND CO LTD
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