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Aircraft engine link mechanism nut alignment and tightening device and method

A technology of aero-engine and connecting rod mechanism, which is applied in the direction of metal processing, metal processing equipment, manufacturing tools, etc., to achieve the effect of ensuring consistency, good motion stability, and ensuring the accuracy of tightening angle

Active Publication Date: 2019-12-13
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To solve problems such as working quality, the present invention proposes a device and method for aligning nuts and tightening the connecting rod mechanism of an aero-engine with high tightening efficiency, good consistency of tightening quality and high tightening precision

Method used

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  • Aircraft engine link mechanism nut alignment and tightening device and method
  • Aircraft engine link mechanism nut alignment and tightening device and method
  • Aircraft engine link mechanism nut alignment and tightening device and method

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Embodiment Construction

[0049] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0050] Such as figure 1 , figure 2 Shown is an alignment nut tightening device for an aero-engine linkage mechanism. The device includes a universal joint drive type tightening system 1 , a nut alignment and positioning system 2 and a tooling pre-positioning system 3 .

[0051] Such as image 3 , Figure 4 , Figure 5 , Figure 7 The knuckle-driven tightening system 1 shown is located inside the nut alignment and positioning system 2 and installed on the guide rail lock 14 of the nut alignment and positioning system 2 . It can move along the axial direction of the rotor casing 6 of the aero-engine along with the guide rail lock 14 . The universal joint drive type tightening system 1 includes a tightening motor mounting block 15, a middle segment universal joint 19, a dynamic torque sensor 20, a lower universal joint 22, a tightening sl...

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Abstract

The invention discloses an aircraft engine link mechanism nut alignment and tightening device and an aircraft engine link mechanism nut alignment and tightening method, and belongs to the aircraft engine internal assembly technology field. The aircraft engine link mechanism nut alignment and tightening device comprises a universal joint driving type tightening system, a nut alignment and positioning system and a device tool prepositioning system, wherein the device tool prepositioning system is installed on a housing of a rotor of an aircraft engine, the nut alignment and positioning system isinstalled on the upper portion of the device tool prepositioning system, and the universal joint driving type tightening system is installed in the nut alignment and positioning system. Positioning of a tightening sleeve is completed through the nut alignment and positioning system, and tightening work for nuts is completed by driving the tightening sleeve through a tightening motor. The aircraftengine link mechanism nut alignment and tightening device adopts a numerical control operation mode, simplifies the operation process, reduces manual operation task intensity, has the characteristicsof being high in automatic degree, high in motion precision and good in tightening state, and improves internal nut tightening efficiency of the aircraft engine.

Description

technical field [0001] The invention belongs to the technical field of internal assembly of aero-engines, and in particular relates to a device and method for aligning and tightening nuts of an aero-engine connecting rod mechanism. Background technique [0002] Aeroengine rotor casing is an important part of aeroengine, mainly composed of rotor casing and multi-stage shaft disk assembly, the end surface of the shaft disk is connected with the rear mounting surface of the rotor casing, and is fastened and connected by multiple threaded connectors uniformly distributed along the axis circumferential direction stand up. Since the aero-engine mainly works under high-temperature, high-pressure external load conditions, it places extremely high requirements on the connection between the rotor shell and the shaft disk, and the tightening quality of the threaded connection affects the assembly performance and service reliability of the whole machine. Key factor. Moreover, the dist...

Claims

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Application Information

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IPC IPC(8): B23P19/06
CPCB23P19/06
Inventor 孙伟王连吉杨阳袁博孙清超
Owner DALIAN UNIV OF TECH
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