The Wear Behaviour of a New Eccentric Meshing Reducer with Small Teeth Difference
Abstract
:1. Introduction
2. Modeling and Methods
2.1. Finite Element Model of the Eccentric Meshing Reducer
2.2. Wearing Techniques
3. Results and Discussions
3.1. Tooth Surface Stress Analysis of the Reducer
3.2. Wear Analysis of Tooth Surface
3.2.1. Wear Laws of Different Contact Pairs
3.2.2. Impact of the Load Amplitude on Wear
4. Conclusions
- (1)
- In this eccentric meshing reducer, the stress responses of the gear contact pair were stronger than those of the contact pair. Under the conditions of 30 Nm, the maximum stress of the gear contact pair was 699 MPa and the maximum stress of the corresponding spline contact pair was 550 MPa.
- (2)
- In this eccentric meshing reducer, the wear rate of the external spline was higher than that of the input shaft gear, which uses the same material. This effect can be attributed to the greater relative sliding distance. In the two contact pairs, the internal spline showed the highest wear rate, followed by the output shaft gear, external spline, and input shaft gear, successively.
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Input Gear | Output Gear | External Spline | Internal Spline | |
---|---|---|---|---|
Teeth number | 22 | 20 | 14 | 14 |
Module (mm) | 2 | 2 | - | - |
Tooth width (mm) | 7 | 6 | 19 | 19 |
Pressure angle (°) | 20 | 20 | - | - |
Component | Material | Chemical Composition | |||||||
---|---|---|---|---|---|---|---|---|---|
C | Si | Mn | Cr | P | S | Ni | Ti | ||
Input gear | 20CrMnTi | 0.18 | 0.26 | 1.20 | 1.20 | 0.01 | 0.004 | 0.01 | 0.07 |
Output gear | 40Cr | 0.40 | 0.27 | 0.60 | 1.0 | 0.01 | 0.004 | 0.01 | |
External spline | 20CrMnTi | 0.18 | 0.26 | 1.20 | 1.20 | 0.01 | 0.004 | 0.01 | 0.07 |
Internal spline | 45 | 0.45 | 0.30 | 0.6 | 0.20 | 0.01 | 0.004 | 0.01 |
Material | 20CrMnTi | 40Cr | 45 |
---|---|---|---|
(mm2/N) |
Torque (N·m) | 30 | 60 | 90 | 120 |
---|---|---|---|---|
Output gear | 4.53 × 10−10 | 6.60 × 10−10 | 8.50 × 10−10 | 10.25 × 10−10 |
Input gear | 3.54 × 10−12 | 6.38 × 10−12 | 8.88 × 10−12 | 11.15 × 10−12 |
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Yang, R.; Guan, Z.; Yang, D.; Zou, S.; He, H.; Wang, G. The Wear Behaviour of a New Eccentric Meshing Reducer with Small Teeth Difference. Machines 2024, 12, 605. https://doi.org/10.3390/machines12090605
Yang R, Guan Z, Yang D, Zou S, He H, Wang G. The Wear Behaviour of a New Eccentric Meshing Reducer with Small Teeth Difference. Machines. 2024; 12(9):605. https://doi.org/10.3390/machines12090605
Chicago/Turabian StyleYang, Renqiang, Zhengjun Guan, Dongdong Yang, Shuaidong Zou, Haifeng He, and Guangjian Wang. 2024. "The Wear Behaviour of a New Eccentric Meshing Reducer with Small Teeth Difference" Machines 12, no. 9: 605. https://doi.org/10.3390/machines12090605