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Drum-shaped spline and design method thereof

A design method and drum-shaped technology, applied in the field of splines, can solve the problems of lack of theoretical basis for drum-shaped spline design and the range of modification amount.

Pending Publication Date: 2022-07-08
AECC SHENYANG ENGINE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still a lack of theoretical basis for drum spline design and a method for determining the range of modification amount.

Method used

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  • Drum-shaped spline and design method thereof
  • Drum-shaped spline and design method thereof
  • Drum-shaped spline and design method thereof

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Embodiment Construction

[0031] In order to make the implementation purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the embodiments of the present application.

[0032] Aiming at the problems such as the amount of modification in the design of the drum-shaped spline in the prior art, a design method of the drum-shaped involute spline is proposed in this application.

[0033] like figure 1 As shown, the drum-shaped involute spline design method process proposed by the application is as follows:

[0034] S1, determine the drum radius C r lower limit of .

[0035] According to the material used for common involute splines, determine the allowable extrusion stress on the tooth surface of the drum-shaped spline [S c ], the allowable extrusion stress [S c ] The calculation process can be determined according to the cor...

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Abstract

The invention provides a drum-shaped spline design method which comprises the following steps: S1, determining the drum-shaped radius lower limit of a drum-shaped spline: firstly, determining allowable extrusion stress of a tooth surface of the drum-shaped spline according to a material used by a common involute spline; calculating the lower limit of the drum radius according to the structural parameters of the common involute spline; s2, determining the upper limit of the crowned radius of the crowned spline: firstly, determining the lower limit of the modification amount of the crowned tooth according to the condition that the crowned spline is not interfered in a limit state; and determining the upper limit of the drum radius according to the approximate relationship between the drum tooth modification amount and the drum radius.

Description

technical field [0001] The present application belongs to the technical field of splines, and particularly relates to a drum-shaped spline and a design method thereof. Background technique [0002] In aircraft, in order to reduce the weight of the engine, improve the thrust-to-weight ratio, and improve the safety and reliability of transmission, the coupling is required to have light weight, low cantilever moment, high balance potential at high speed and high speed, acceptable centrifugal stress, and good Misalignment compensation capability. And only splines meet this demanding requirement. Aero splines are compact in structure, easy to install, with shallow keyway, small stress concentration, small weakening of the strength of the shaft and hub, and easier compensation for installation errors and misalignment, per unit weight or per unit weight. The inch diameter transmits more power—that is, higher specific power, does not cause debris to fall off even in the event of a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/17G06F30/23G06F119/14G06F119/02
CPCG06F30/17G06F30/23G06F2119/14G06F2119/02Y02T90/00
Inventor 牟佳信郭梅苏常青赵广赵向阳李盛翔葛长闯李锦花胡兴海信琦毛宏图谷俊
Owner AECC SHENYANG ENGINE RES INST