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A Method for Obtaining the Distribution Coefficient of Toothwise Load of Cylindrical Gears

A cylindrical gear and load distribution technology, applied in the field of mechanical transmission, can solve the problems such as the inability to accurately reflect the tooth load distribution and the difficulty in guaranteeing the calculation accuracy.

Active Publication Date: 2020-07-07
TSINGHUA UNIV +1
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Problems solved by technology

[0010] However, studies have shown that the empirical formula method has certain limitations, and the calculation accuracy is often difficult to guarantee, especially the tooth load distribution under the influence of system deformation under different load conditions cannot be accurately reflected
Therefore, there is still a lack of an accurate and efficient method for obtaining the tooth load distribution system of cylindrical gears

Method used

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  • A Method for Obtaining the Distribution Coefficient of Toothwise Load of Cylindrical Gears
  • A Method for Obtaining the Distribution Coefficient of Toothwise Load of Cylindrical Gears
  • A Method for Obtaining the Distribution Coefficient of Toothwise Load of Cylindrical Gears

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[0099] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments. However, it should be understood that the accompanying drawings are provided only for better understanding of the present invention, and they should not be construed as limiting the present invention.

[0100] as Figure 4 The cylindrical gear transmission system shown is taken as an example, and the cylindrical gear transmission system is composed of a driving gear shaft, a driven gear shaft, a driving gear and a driven gear. Both the driving and driven gear shafts are simply supported, and the input torque T 1 =120N·m is applied to the left end of the driving gear shaft, and the output torque is T 2 Acts on the left end of the driven gear shaft. like image 3 As shown, OXYZ is stipulated as the global coordinate system of the cylindrical gear transmission system. The coordinate origin O is located at the left end of the driving gear shaft, the Z axi...

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Abstract

The invention relates to a cylindrical gear tooth direction load distribution coefficient acquiring method. The method is characterized by including: 1), building a beam unit model of a transmission shaft; 2), a nonlinear multipoint meshing model of a cylindrical gear; 3), building a nonlinear statics model of a cylindrical gear transmission system; 4), iteratively calculating static balance stateof the cylindrical gear transmission system; 5), calculating tooth direction load distribution coefficient of the cylindrical gear. A space beam unit and a gear equivalent meshing unit are adopted toperform numerical simulation on the cylindrical gear transmission system, modeling of the cylindrical gear transmission system and solving of the tooth direction load distribution coefficient can berealized quickly in universal programming language environment, calculating accuracy of a finite element contact analysis method is attained, calculating efficiency is improved greatly, and the defects of low calculating accuracy of empirical formula methods and low calculating efficiency of the finite element contact analysis method are overcome.

Description

technical field [0001] The invention relates to a method for obtaining influence coefficients for calibration calculation of cylindrical gears, in particular to a method for obtaining distribution coefficients of cylindrical gear tooth direction loads based on a nonlinear multi-point meshing model, and belongs to the technical field of mechanical transmission. Background technique [0002] The load distribution coefficient in the tooth direction is an important influence coefficient in the calibration calculation of cylindrical gears, which reflects the influence of uneven load distribution along the tooth width direction on the contact stress of the tooth surface. The international standard ISO 6336-1-2007, the American gear standard AGMA2001-D04 and the national standard GB / T 3480-1997 all define the tooth load distribution coefficient, that is, the ratio of the maximum load per unit tooth width to the average load per unit tooth width, Expressed in the form of formula (1)...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/23G06F30/17
CPCG06F30/17G06F30/23
Inventor 范子杰周驰陈长亮桂良进丁炜琦
Owner TSINGHUA UNIV
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