A transmission pair of arc tooth surface gear and its design method

A surface gear and arc tooth technology, applied in the field of arc tooth surface gear transmission pair and design, can solve the problems of low bearing capacity, large vibration noise, low coincidence degree, etc., and achieve strong bearing capacity, low vibration noise, and coincidence great effect

Active Publication Date: 2022-04-19
NANCHANG HANGKONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It effectively solves the problems of low coincidence degree, low bearing capacity, and large vibration and noise of spur gears and helical gears.

Method used

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  • A transmission pair of arc tooth surface gear and its design method
  • A transmission pair of arc tooth surface gear and its design method
  • A transmission pair of arc tooth surface gear and its design method

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Embodiment 1

[0067] The basic parameters of the gear pair: imaginary tool gear modulus m=4, number of teeth N s =30, radius R of tooth line arc t =200, radius of indexing circle R=0.5mN s =60, pressure angle α s =20°, the number of teeth of arc tooth surface gear N 2 =120, the position parameter of the coordinate system is equal to the radius L of the pitch circle of the arc tooth surface gear 0 =240.

[0068] Step 1: The tooth surface equation r of the imaginary tool gear (end face involute tooth profile arc tooth cylindrical gear) s (θ s ,h) is

[0069]

[0070] In the formula, the symbols "±" correspond to the tooth surfaces on both sides of the alveolar. θ s is the angle parameter of the involute of the imaginary tool gear, θ s ∈[0,0.5371], h corresponds to the parameters of the imaginary tool gear tooth surface in its axial direction, h∈[-40, 40], R b is the radius of the base circle of the imaginary tool gear, R b =0.5mN s cosα s =56.3816, position angle θ s0 is t...

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Abstract

The invention discloses an arc tooth surface gear transmission pair and a design method thereof. The arc tooth surface gear transmission pair is an orthogonal surface gear transmission pair composed of an end face involute arc tooth cylindrical gear and an arc tooth surface gear. . A method for designing a transmission pair of curved tooth surface gears comprises the following steps: 1. Establishing the basic conditions for the generation of curved tooth surface gears; 2. Deriving the tooth surface equation and meshing equation of the curved tooth surface gears; 3. Determining the arc 4. Determine the meshing form of the arc tooth surface gear pair; 5. Establish a three-dimensional model to realize the parametric and accurate modeling of the arc tooth surface gear, and use CATIA software to describe the involute arc of the end face The conjugate meshing of the toothed cylindrical gear and the arc tooth surface gear constitutes the arc tooth surface gear transmission pair. The arc tooth surface gear pair has the advantages of compact structure, large coincidence, stable transmission, strong bearing capacity, etc., and has a good application prospect in the field of high-power transmission.

Description

technical field [0001] The invention belongs to the technical field of gear transmission, and in particular relates to an arc tooth surface gear transmission pair and a design method thereof. Background technique [0002] The end face involute tooth profile arc tooth cylindrical gear has the same axial slot width and the same axial tooth thickness, and any section parallel to the end face is a standard involute tooth profile. This geometric feature makes its transmission more stable and less noisy. Low, strong carrying capacity. Moreover, the arc-tooth cylindrical gear with an involute tooth profile on the end surface not only has the transmission characteristics of ordinary spur gears, but also has the characteristics of helical cylindrical gears, and can also overcome the shortcomings of herringbone gears. Contents of the invention [0003] The object of the present invention is to provide a transmission pair of arc-toothed surface gear and its design method. The end fa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H1/14F16H55/08F16H55/17G06F30/17
Inventor 冯占荣盛伟王利霞王文轩陈勇赵玉龙
Owner NANCHANG HANGKONG UNIVERSITY
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