The Software Design And Development Of Planetary Gear Mechanisms

The planetary gear mechanism has lots of advantages, such as compactconformation,, strong carrying capacity, large transmission rate，stability and hightransmission efficiency and so on, which make it possible to be widely used in manyfields. In the design and analysis process of the planetary gear transmission, kinematicanalysis and the calculation of the transmission efficiency is an important content. Onthe basis of intensive studies on the works about analytical geometry method,and whichis to solve the kinematic analysis and the calculation of the efficiency of the planetarygear trains, using the method of compartmentalize of the fundamental circuit tostructure the planetary gear mechanism systemmatically, thereby expressed thetopological relations of the planetary gear mechanism accurately. choosing the Visual C++6.0as the development tool, follow the general process of software development，determined the software functionality；According to the program interface designprinciples，combined the actual situation, completed the development of a softwareprogram interface, And ultimately finished the planetary gear mechanism kinematicsanalysis software design process.Simplify the kinematic equations of the analytical geometry method of theplanetary gear trains by the logical expression way, and applied the equations to theactual programming of the software. Finally, The kinematics analysis software whichcould be used both planetary gear mechanism and differential planetary gear mechanismhas been developed. Using of the functions numerical calculation and circuitrelationship grahph analysis of the software to calculate and analyze planetary gearmechanism and differential planetary gear mechanism, obtained the numerical valueof variable of the kinematics and completed the drawing and analysis of the circuitrelationship graph. Put numerical calculation result and theoretical formula calculationresult and analytical geometry method calculation result to contrast verification, thethree results completely consistent., thereby proved accuracy and reliability ofanalytical geometry and software to solve the planetary gear mechanism kinematicanalysis. Besides, planetary gear transmission efficiency calculation is morecumbersome, and the software can simplify the process.Using the sofeware in the design and analysis phase of NGW, WW and NGWNthese three mechanisms to kinematics analysis, obtained the numerical calculation results. The application circuit relationship grahph analysis capabilities could inspectthe evolution trend of the mechanism, so that the designers can determine the structureof planetary gear at last. At the same time the results combined with analysis of theanalytical geometric method to complete the efficiency calculation, the results show thatthe software can simplify the design and analysis of the planetary gear mechanism.Finally, discusses the common planetary gear mechanism kinematics analysis results,facilitate the designers to capture the characteristics of the various mechanisms on thewhole, to horizontal contrast various mechanisms from point of view qualitatively,Shows a convenient, fast and practical characteristics.