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 Posted: Tue 9:35, 05 Apr 2011 Post subject: All parameters of the gear tooth profile and imple |
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All parameters of the gear tooth profile method for automatic generation and implementation
Tooth root curve is part of the data, while the subscript 21 to 39 store the involute curve is part of the data; search the intersection of two data subscript; if part of the curve at the intersection of the tooth root is the subscript i, gradually On the next line curve labeled as part of the intersection, then the rounding curve part of the tooth root after the next data point labeled i, and part of the involute curve subscript 21 to the data points. It should be noted that the above definition is a broad intersection, as long as two data points in the curve is considered sufficiently close to the intersection. t716l5l4l13 l2IIIO9802468/n1m tooth profile of Figure 5, undercutting the situation occurs (Z = 10) Fig. 5UndercutOCCURSwhenZ = 104 program interface and an example to the above method, the preparation of the corresponding computer program to automatically generate tooth profile curve. Program interface screenshot shown in Figure 6. Users need to enter the pressure angle, addendum coefficient, the top gap coefficient, modulus, number of teeth, helix angle, rotation and other parameters in the implementation of procedures under Solidworks tooth profile of the corresponding point set to provide the letter InsertCurveFilePoint read SolidworksAPI in, by calling SketchMir-ror, FeatureExtrusion2, FeatureCut, FeatureCircu-larPattern2 other functions, can be obtained automatically generated three-dimensional solid modeling gear gear design parameters and the report (Figure 7). Because large amounts of data in this area can learn from existing reference, it is omitted. Figure 6, user interface Fig. 6Programuserinterface design example of Figure 7 Fig. 7Designexample Figure 8 shows a pair of gears (Z = 15, Z2-32) meshing. Can clearly see the small gear had a slight undercut. Two gears meshing well, backlash-free drive to achieve. Figure 9 compares the (continued on page 122) 122 Donghua University (Natural Science) 35 (on the next page 93) this algorithm to generate the tooth profile of gear design software with foreign business GearTrax generated tooth profile seen fit together well. Figure 8 for non-backlash gear meshing F hee 8Meshinggearswithoutsideclearance Figure 9 this tooth profile curve generated by comparing the tooth profile generated with GearTrax Fig. 9TeethprofilecomparisonwithorlegeneratedbyGearTrax5 Conclusion (1) This paper describes the generation of conjugate tooth profile transformation theory and derived the relevant equations; established principle of using the gear rack meshing type gear cutter mathematical model, obtained with conjugate gear mathematical tooth profile of the whole solution method. (2) This article describes the conjugate tooth numerical calculation method is very concise and effective, need not calculate the involute, do not need to solve transcendental equations to solve the problem of tooth profile curve of singular solution can be convenient, fast and accurately draw All tooth profile curve. And that the algorithm can also be used bevel gear, worm gear profile and non-circular curve calculations. (3) This article addresses the gear shape, the whole tooth profile curve (mainly refers to the involute tooth and tooth root transition curve) generated problems. Can generate less precise tooth profile of gear teeth, gear parameters to achieve the automatic model, the generated gear model accurate and reliable for further analysis by computer finite element simulation strength check of gears to provide a powerful tool.
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