Research on virtual design of gearbox gear based on knowledge

LIU Weiliang; WANG Hongjun; ZOU Xiangjun; LI Hui; WANG Runhong; LI Cheng’en; DENG Tong

doi:10.7671/j.issn.1001-411X.201912024

Journal of South China Agricultural University > 2020 > 41(4): 120-126. > DOI: 10.7671/j.issn.1001-411X.201912024

LIU Weiliang, WANG Hongjun, ZOU Xiangjun, et al. Research on virtual design of gearbox gear based on knowledge[J]. Journal of South China Agricultural University, 2020, 41(4): 120-126. DOI: 10.7671/j.issn.1001-411X.201912024

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Research on virtual design of gearbox gear based on knowledge

College of Engineering, South China Agricultural University, Guangzhou 510642, China

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Received Date: December 22, 2019
Available Online: May 17, 2023

Graphical Abstract

Abstract

Abstract

Objective
In order to solve the problems of complex and variable gear parts and low knowledge reuse rate in the process of virtual design and simulation of agricultural gearboxes.

Method
Based on the classification of gearbox gear knowledge, the ontology was used to describe the gear design knowledge. Combining knowledge engineering and parametric design technology, a knowledge-based virtual gear design method was proposed. This system was verified using the complex spline gear design of tractor gearbox as an example.

Result
A virtual design system for gearbox gear was developed using the three-dimensional modeling software NX as a platform. The gear design requirements were obtained through the human-machine system interface. With the support of gear design knowledge base and model library, the gear structure was inferred using knowledge reuse. Driven by the geometric parameters, a gear model that met the design requirements was quickly constructed to achieve the rapid and intelligent design of gears with complex structures. The verification results showed that the system could automatically output the detailed spline gear structure model in seconds when entering the design requirements in the man-machine interface.

Conclusion
This system can better support the virtual design and simulation of gearbox, shorten the development cycle of agricultural machinery, and also provide a technical reference for the virtual design of other mechanical product.
- gearbox,
- gear,
- knowledge engineering,
- parameterization,
- ontology representation

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