| 摘要(英) |
In the gearbox design and development stage, to meet market-oriented requirements, gear manufacturers will at first plan various model sizes according to different center distances and speed ratios, and launch standard gearbox catalogs for customers to choose. In general, the standard reduction gearboxes on the market have little differences in structural design. The design process and related specification are complete. Therefore, design engineers mostly perform repetitive tasks on calculation and drawing, and cannot have a complete and systematic top-down system planning, when a new gearbox system or a customized gearbox is required to design.In order to improve this situation, the development and design of the gearbox size ranges can be carried out with aid of computer programs. The complex combination and pairing relationship of the gear pair system, a lot of calculations, and time-consuming drawing works can be effectively finished. Therefore a complete and cost-effective design model for gearbox can be established.
The aim of this thesis is therefore to develop two sets of computer-aided design tools, namely a program to develop standard gear reducers catalogues and a program to generate CAD drawing automatically , eachbased on the Visual Basic to connect the gear analysis software KISSsoft and 3D drawing software Solid Edge. through the application programming interface (API).
The development program for standard gearbox catalog aims to establish standard specifications for related sizes of gearboxes through modularization and product size ranges, so as to have commonality of the important components such as gearbox gears, shafts, and bearings. Users only need to construct the basic parameter database of design specifications, , and then the load capacity of gears and bearings can be calculated by KISSsoft software in batches automatically based on the algorithm established in the program according to the design specifications. The combination of gear pair data and the database of shafts and bearings produce a complete catalog of gearbox design parameters.
On the other hand, the generation program for CAD files selects automatically the appropriate model size and automatically from the database of the standard gearbox catalog based on the center distance, total ratio, and output torque of the gearbox interface. The safety factor of the gear is calculated and an engineering report is generated afterwards. The model parameters of the relevant components will be selected from the database and used for further CAD model generation according to the aforementioned process. Then, using the application programming interface (API) of CADsoftware Solid Edge, the dimensions of each geometric features of these components are modified by using the model parameterization and a solid model of each component of the gear reducer is created accordingly. |
| 參考文獻 |
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