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A cantilever mounted device capable of measuring torque at high speed

A cantilever installation, high-speed technology, applied in measuring devices, measuring torque/torsion force during tightening, engine testing, etc., to achieve a wide range of operating speed, wide application range, and simple and clear design ideas

Active Publication Date: 2021-06-22
中国航发贵阳发动机设计研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a design method for bridge-type lap joint structure used for cantilever installation of torque sensors, and designs a device for cantilever installation that can measure torque at high speed, which solves the problems of cantilever installation and high-speed transmission of torque sensors, so as to realize efficient transfer of power

Method used

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  • A cantilever mounted device capable of measuring torque at high speed
  • A cantilever mounted device capable of measuring torque at high speed
  • A cantilever mounted device capable of measuring torque at high speed

Examples

Experimental program
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Embodiment

[0033] (1) According to the structure and characteristics of the torque sensor, design the adapter shaft suitable for the installation side of the rotor flange of the torque sensor. The spline shaft Ⅰ4 is the transmission chain formed by the connection between the rotor 3 of the torque sensor and the motor mounting seat 6 of the aircraft accessory casing. On the casing and the AC motor 1, no bearings are used to support the two motor spline shafts, and the design span of the overlapping structure (including the rotor 3 of the torque sensor) is 183 mm.

[0034] (2) According to the structure type of the power source and the test piece, the interface type of the adapter shaft is selected, and the connection structure of the motor spline shaft II2 and the motor spline shaft I4 is designed as an external spline structure, and the design of the splines at both ends It needs to meet the spline technical requirements of the aircraft accessory case and alternator 1, and the drive shaf...

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Abstract

The invention discloses a cantilever-mounted device capable of measuring torque at high rotational speed, which comprises a lap joint structure casing sheathed on a motor spline shaft and a mounting bracket. The motor spline shaft includes a motor spline shaft I and a motor which are separated from each other. Spline shaft II; an opening is opened on the shell of the overlapping structure, and the stator of the torque sensor used to measure the torque is set in the opening and detachably connected to the shell of the overlapping structure through the mounting bracket; the rotor of the torque sensor is set on the motor The spline shaft I and the motor spline shaft II are detachably connected to the motor spline shaft I and the motor spline shaft II respectively. In the present invention, the torque sensor is mounted on a cantilever, and the number of components on the transmission chain is reduced as much as possible. The overall structure is compact, and the axial length, that is, the length of the cantilever, is reduced as much as possible. The invention has a wide working speed range and a wide application range, and can be applied to power extraction tests of multi-type high-speed mechanical equipment.

Description

technical field [0001] The invention belongs to the power extraction test technology of an aero-engine ground bench, relates to the research of a method for measuring the output power of an aero-engine, relates to the field of high-speed mechanical transmission, and can be applied to a cantilever-installed high-speed torque measurement and calibration device with short working hours. Background technique [0002] The accessory alternator of aero-engine, the working speed is 20000r / min. According to the development needs, a torque sensor is installed between the motor and the aircraft accessory casing of the aero-engine to measure the output shaft power of the aero-engine. The aircraft accessory casing is suspended and hoisted, and the alternator is also required to be cantilevered due to space constraints. Therefore, the installation environment of the torque sensor has technical characteristics such as cantilever installation, narrow space, high-speed transmission, and lim...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M15/02G01L5/24
CPCG01L5/24G01M15/02
Inventor 许柯杨光荣王洪斌
Owner 中国航发贵阳发动机设计研究所
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