A Method of Profile Modification of the Tooth Surface of Semi-Rolled Pan Gear

The use of drives based on pan precession gears with a small shaft angle in which multiple-tooth meshing is implemented significantly increases the efficiency and transmitted torque in oil and gas equipment. It also and reduces the breakaway torque by almost an order in comparison with worm gears. The production of pan gears in the semi-rolled version significantly simplifies tooth cutting technology. To exclude the possibility of edge contact of the teeth coming into meshing due to their contact and bending deformations, it is necessary to carry out profile correction of the teeth. To address this issue, a method utilizing a tool with a straight cutting edge displaced from the axial plane of the tool is proposed. Using cutting of the wheel teeth of a semi-rolled pan gear with the proposed tool as an example, calculations of the total profile errors and the tooth surface curvatures are performed to further determine the contact loading of the gear.

References

[1] Denisov Yu.G., Syzrantsev V.N., Vibe V.P. Soosnyy reduktor [Coaxial gearbox]. Patent no. 2529943 RF, 2014.

[2] Syzrantsev V., Kotlikova V. Mathematical and program provision of design of bevel gearing with small shaft angle. Proceedings of the International Conference on Gearing, Transmissions, and Mechanical Systems, 3–6 July, Nottingham Trent University, UK, 2000, pp. 13–18.

[3] Syzrantsev V.N., Vibe V.P., Kotlikova V.Ya. Designing of the reducer with pre-cessing tooth gearing. Scientific and technical Volga region bulletin, 2011, no. 2, pp. 53–58 (in Russ.).

[4] Syzrantsev V., Syzrantseva K., Pazyak A. Method of Loading Capacity Calculation of Bevel Precessional Gear for Pipeline Valve Drives. Journal of Engineering and Sciences, 2015, vol. 10, is. 8, pp. 243–246, doi: 10.3923/jeasci.2015.243.246

[5] Syzrantsev V., Denisov J., Wiebe V., Pazyak A. The Design and Production of Drives Based on Pan Precess Gear for Oil and Gas Machinery. International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, 2015, vol. 10, no. DETC2015-47096, pp. V010T11A057, doi: 10.1115/DETC201547096

[6] Syzrantsev V.N., Denisov Yu.G., Vibe V.P., Emel’yanov A.V. Installation elec-tric screw driven pump based on transfer precesses. Exposition Oil & Gas, 2012, no. 1, pp. 29–31 (in Russ.).

[7] Syzrantsev V.N., Golofast S.L. Pipeline shut-off valve drives based on a flatconic precession transmission. Science and Technology in the Gas Industry, 2014, no. 1, pp. 64–67 (in Russ.).

[8] Syzrantsev V.N., Vibe V.P. Forming of surfaces of teeth of wheels of precessing transmission of drives of stop valves. Oil and Gas Studies, 2012, no. 2, pp. 97–101 (in Russ.).

[9] Syzrantsev V.N., Syzrantseva K.V., Pazyak A.A. Calculating geometric parameters of the semi-rolled straight pan gear. Intellektual’nyye sistemy v proizvodstve, 2015, no. 2, pp. 76–79 (in Russ.).

[10] Pazyak A.A., Syzrantsev V.N. Longitudinal crowning of the gear tooth surface of straight bevel gears with a small shaft angle with on-generated gear and generated pinion. Izvestiya vysshikh uchebnykh zavedeniy. Neft’ i gaz, 2016, no. 3, pp. 122–129 (in Russ.).

[11] Syzrantsev V.N., Pazyak A.A. Precession transmission for drives of shutoff valves oil and gas pipelines and gear inserts of pumps for heavy oil production. Bulletin of the Tomsk Polytechnic University. Geo Assets Engineering, 2017, vol. 328, no. 2, pp. 15–27 (in Russ.).

[12] Syzrantsev V., Syzrantseva K., Pazyak A., Milanovic M. Research on geometrical characteristics of straight bevel gears with a small shaft angle with a non-generated gear and generated pinion. FME Transactions, 2017, vol. 45, no. 4, pp. 661–669, doi: 10.5937/fmet1704661S

[13] Syzrantsev V.N., Chernaya L.A., Pazyak A.A. Analysis of gear meshing of bevel gears with a small shaft angle with a non-generated gear and a generated pinion with longitudinal crowning of the gear tooth surface. Intellektual’nyye sistemy v proizvodstve, 2016, no. 4(31), pp. 94–100(in Russ.), doi: 10.22213/2410-9304-2016-4-94-100

[14] Syzrantsev V.N., Pazyak A.A. Calculation of the loading capacity of pan precess gear for a new generation drive of oil and gas equipment. Oil and gas territory, 2015, no. 4, pp. 108–111 (in Russ.).

[15] Syzrantsev V.N., Pazyak A.A. Calculation of loading capacity of semi-rolled flat-conic transmission of shut-off valve drives. Bulletin of the Tomsk Polytechnic University. Geo Assets Engineering, 2017, vol. 328, no. 3, pp. 64–74 (in Russ.).