Abstract
When the transmitting of power and torque between parts of a machine requires high efficiency, the most appropriate type of gears are the bevel gears. The two main forms of bevel gears are straight and spiral bevel gears. Manufacturing of bevel gears has been implemented using dedicated bevel gear cutting machines. These machines make the production of this type of gears quite costly. This is the main reason that forced many manufacturers start using CNC milling machines for cutting bevel gears. A combination of a 5-axis milling center machine and a modern computer aided manufacturing (CAM) system that supports a vast number of complicated machining procedures, offers the opportunity of machining high quality bevel gears. This paper concerns the presentation of a program written in MATLAB that calculates the basic designing features of a bevel gear pair, as they described by ISO standard. It is also presented the calculated tooth profiling that is used in order to be designed a 3-D model of the gears in a CAD software.
Highlights
Gear is one of the few mechanical devices that can satisfactorily transmit power between rotating shafts, but can do so with uniform motion and reliability
It is clear that the specific formulas for their respective geometries were developed for the mechanical generation methods of their particular machines and tools. These formulas could not be used in general for all bevel gear types. This situation changed with the introduction of universal, multiaxis CNC machines, which in principle are able to produce most types of gearing.[1],[2],[3],[4] The goal of this paper is to present program that calculates all the geometrical features of a spiral bevel gear
The spiral bevel gears design remains complex since tooth geometry is affected by the manufacturing process
Summary
Gear is one of the few mechanical devices that can satisfactorily transmit power between rotating shafts, but can do so with uniform motion and reliability. These formulas could not be used in general for all bevel gear types This situation changed with the introduction of universal, multiaxis CNC machines, which in principle are able to produce most types of gearing.[1],[2] ,[3] ,[4] The goal of this paper is to present program that calculates all the geometrical features of a spiral bevel gear. The algorithm of this program is developed in a programming platform, in MATLAB
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