DEVELOPMENT OF A METHOD FOR PREDICTING THE ACCURACY OF SPIROID WHEELS

2021 ◽  
Vol 2 ◽  
pp. 71-76
Author(s):  
K.Yu. PESHEKHONOV ◽  
A.S. TARAPANOV
Keyword(s):  
Cutting Tools ◽  
Comprehensive Analysis ◽  
Tooth Profile ◽  
Profile Error ◽  
Technological Factors ◽  
Pitch Error ◽  
Longitudinal Line ◽  
Shaping Process ◽  
Geometric Deviations ◽  
Thickness Error

The article considers the possible errors of the spiroid transmission based on mathematical modeling of the process of shaping the teeth of the spiroid wheel. Typical errors such as tooth profile error, tooth pitch error, tooth thickness error, tooth longitudinal line error are applicable to spiroid wheel tooth errors. Currently, the accuracy standards for spiroid transmissions are not standardized. It is shown that the mandrel of a cylindrical spiroid cutter for processing spiroid wheels has an increased length, which contributes to its greater squeezing from the spiroid wheel during the shaping process. Based on the components of the cutting forces, a graph of the vibrations of the milling cutter mandrel is presented. In the study of precision spiroid wheels on the basis of a comprehensive analysis of the formation of the tooth profile of spiroid wheel revealed that the geometric deviations of the lateral surfaces of the teeth of wheels due to the errors of gear cutting tools and technological factors.

Measurement of tooth-profile error of cylindrical gear wheels, using a UIM-21 microscope

1976 ◽  
Vol 19 (12) ◽  
pp. 1700-1702
Author(s):  
N. P. Motora ◽  
A. E. Nesterovskii
Keyword(s):  
Tooth Profile ◽  
Profile Error ◽  
Cylindrical Gear ◽  
Gear Wheels

Measurement of Tooth Profile Error using Special Master Gear

2004 ◽  
Vol 2004 (0) ◽  
pp. 63-66
Author(s):  
Teru HAYASHI ◽  
Hiroomi OGASAWARA ◽  
Noritsugu MAEDA ◽  
Yoshiharu SHIBUYA
Keyword(s):  
Tooth Profile ◽  
Profile Error ◽  
Special Master

Influence of Tooth Profile Error on Friction Loss and Noise of Spur Gears

2003 ◽  
Vol 2003 (0) ◽  
pp. 249-250
Author(s):  
Shingo KIZAWA ◽  
Shoji HAIZUKA ◽  
Hiroshi TADOKORO
Keyword(s):  
Tooth Profile ◽  
Friction Loss ◽  
Spur Gears ◽  
Profile Error

Analytical calculation models for mesh stiffness and backlash of spur gears under temperature effects

2021 ◽  
pp. 095440622110498
Author(s):  
Ruxin Lu ◽  
Wencheng Tang
Keyword(s):  
Analytical Calculation ◽  
Calculation Model ◽  
Tooth Profile ◽  
Thermal Time ◽  
Time Varying ◽  
Mesh Stiffness ◽  
Profile Error ◽  
Gear Teeth ◽  
Influencing Mechanism ◽  
Torque Load

The temperature has a great contribution to the mesh stiffness and backlash of the gear pair. Presence of thermal deformation caused by temperature will complicate the gear teeth interaction. In this paper, the thermal time-varying stiffness model and thermal time-varying backlash model are proposed with the consideration of tooth profile error and total thermo-elastic deformation consists of the teeth deformation, teeth contact deformation, and gear body-induced deformation. The key parameters of thermo-elastic coupling deformation affected by temperature are calculated. Based on the proposed models, the influencing mechanism of temperature on the tooth profile error, mesh stiffness, total deformation, and backlash are revealed. The effects of shaft radius and torque load on the thermal stiffness and thermal backlash are studied. The proposed thermal stiffness and backlash calculation model are proven to be more comprehensive and the correctness is validated.

The Optimum Modification of Tooth Profile for a Pair of Spur Gears to Make its Rotational Vibration Equal Zero

1992 ◽  
Author(s):  
Yurong Cai ◽  
Teru Hayashi
Keyword(s):  
Static Load ◽  
Tooth Profile ◽  
Parameter Study ◽  
Exact Equation ◽  
Spur Gears ◽  
Contact Ratio ◽  
Profile Error ◽  
Vibration Model ◽  
Modification Method ◽  
Rotational Vibration

Abstract This paper develops an optimum modification method of tooth profile for a pair of spur gears to make its rotational vibration become zero by using an exact vibration model. By minimizing the equivalent exciting force, which includes the effects of the static load, time-varying stiffness, and relative tooth profile error, each optimum modification curve for each gear pair with different designed contact ratios can be obtained. The magnitude and the shape of the optimum modification curve depend upon the value of the designed contact ratio ε strongly. Especially, the concave modification curve is obtained in case of ε ≤ 1.1. The effect of the optimum modification on eliminating the vibration, is verified by the numerical calculation using an exact equation of vibration. A parameter study is presented to investigate the effect of running condition.

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