A device for checking the meshing clearance of central drive bevel gears

A technology of driving bevel gears and bevel gears, applied in the field of aero-engine assembly, can solve problems such as inefficiency and cumbersome adjustment of loading force, achieve good repeatability, precise and controllable axial loading force of bevel gears, and reduce skill levels the effect of dependence

Active Publication Date: 2022-07-12
AECC SICHUAN GAS TURBINE RES INST
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Problems solved by technology

Although this loading method can load relatively accurate axial force, the adjustment of the loading force is cumbersome and inefficient

Method used

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  • A device for checking the meshing clearance of central drive bevel gears
  • A device for checking the meshing clearance of central drive bevel gears
  • A device for checking the meshing clearance of central drive bevel gears

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Embodiment Construction

[0022] The central transmission device is the main transmission device for jet engine power extraction. It is usually installed on the front journal of the compressor. It has the characteristics of large transmission power, high rotation speed and large impact load. The meshing clearance value of the central transmission bevel gear is unreasonable or Poor meshing marks will directly lead to incorrect meshing of bevel gears, which will damage or break the teeth when the engine is started or in working condition.

[0023] At present, in the practice of aero-engine assembly, the coloring inspection of spiral bevel gears is the only way to ensure that the tooth surface contact impressions of the gear pair under rated load are symmetrically distributed along the pitch line along the entire length of the tooth width. The central transmission bevel gear meshing clearance inspection device generally has engineering problems such as complex structure, poor repeatability, and inaccurate ...

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Abstract

The invention belongs to the field of aero-engine assembly, and in particular relates to a device for checking the meshing clearance of a central drive bevel gear. The device includes: a support seat, a first axial force loading mechanism, a second axial force loading mechanism, a third axial force loading mechanism, a central shaft, a centering seat, a multi-channel pressure junction box, and a sensor pressure indicator, wherein , the first axial force loading mechanism, the second axial force loading mechanism, and the third axial force loading mechanism are arranged on the support seat and are equipped with micro pressure sensors, and the central drive driving bevel gear is installed on the centering seat , the central shaft is installed on the central drive driven bevel gear, the first axial force loading mechanism and the second axial force loading mechanism are respectively connected with both ends of the central shaft through bull's eye bearings; the third axial force loading mechanism is connected with the fixed The core seat is connected by a bull's eye bearing, and the miniature pressure sensor is electrically connected with the multi-channel pressure junction box and the sensor pressure indicator. The axial loading force of the bevel gear can be precisely controlled.

Description

technical field [0001] The invention belongs to the technical field of aero-engine assembly, and in particular relates to a device for checking the meshing clearance of a central drive bevel gear. Background technique [0002] Assembly work is a later process in the manufacturing process of aero-engines. It occupies a very important position in the entire production process and is an independent production stage. The engine assembly process is not a simple accumulation process of zero (component) components, but is carried out according to the specified technical standards, technical requirements and a series of technological procedures and quality control procedures of different degrees of complexity. These procedures are implemented through the use of specialized or general-purpose tooling fixtures. Whether the design of the tooling fixture for aero-engine assembly is scientific and reasonable directly affects the assembly progress of the engine, as well as the performanc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B5/14G01B5/00
CPCG01B5/003G01B5/14
Inventor 王力付玄赵文馨闫文吉
Owner AECC SICHUAN GAS TURBINE RES INST
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