Studying Manufacturing Technology Impact on the Aircraft Gear Transmission Accuracy

Mechanical Engineering and Machine Science


Аuthors

Vitrenko O. S.1*, Sharkov O. V.1, 2**

1. Kaliningrad State Technical University, Kaliningrad, Russian Federation
2. Immanuel Kant Baltic Federal University, IKBFU, 14, A. Nevskogo str., Kaliningrad, 236041, Russia

*e-mail: olga.vitrenko@klgtu.ru
**e-mail: osharkov@kantiana.ru

Abstract

Gear transmissions are critical elements of aeronautical and rocket-space engineering drives, which precision and reliability directly affects the flight safety. The article presents the results of experimental studies of the tooth manufacturing technology effect on the gear transmissions quality indicators according to the standards of kinematic accuracy and smoothness of operation. The study examined the straight-toothed gears, which make up the vast majority of cylindrical gears employed in the drives of aeronautical engineering. The gear wheels manufacturing technology for was being implemented on a 5D32 gear-milling machine with various gear-forming tools such as worm cutters, cylindrical and hyperboloid knurlers. According to the requirements of both domestic and foreign standards is the total and tooth-to-tooth radial composite deviation are accepted as parameters characterizing the gear wheels accuracy. Radial composite deviation determining was performed for all the gear wheels under study by the direct absolute contact method in a backlash-free engagement by the center distance meter. Gears producing technology by a knurling tool with a hyperboloid profile allows for the best precision indicators. The magnitude of the fluctuation of the total radial composite deviation will be 1.55–1.82 times less than that produced by a worm cutter and, on average, 1.31 times less than that produced by a cylindrical knurler. The magnitude of fluctuations in the tooth-to-tooth radial composite deviation is being reduced by 1.33–1.62 times compared to a worm cutter and a cylindrical knurler application. Gear wheels manufactured by a hyperboloid knurler meet the requirements of the 7th degree of kinematic accuracy standards. Wheels manufactured with a cylindrical knurler correspond to the 8th degree accuracy, and with a worm cutter to the 9th degree, which requires extra processing of their working surfaces. The effect of the number of teeth of the manufactured wheels and the knurling tool on the kinematic accuracy of gears for engineering practice can be neglected. The hyperboloid knurlers application allows gear wheels manufacturing with fair smoothness indicators, corresponding to the 5th degree of accuracy. Hyperboloid knurlers application allows improving both kinematic accuracy and operation smoothness of gear wheels by one or two degrees. This improves both quality indicators and reliability of gear transmissions employed in aeronautical and rocket-space engineering.

Keywords:

kinematic accuracy of aircraft gear, knurling of cylindrical gears, radial composite deviation, knurling tool with hyperboloid working surface, domestic and foreign standards on the gears accuracy

References

  1. Vulgakov EB. (ed.). Aviation gears and gearboxes. Handbook. Moscow: Mashinostroenie;1981. 374 p. (In Russ.).
  2. Pakhomov SN. Gears for aviation. Aerospace Instrument-Making. 2014(5):47–53. (In Russ.).
  3. Kryuchkov AN, Plotnikov SM, Sundukov AE, et al. Vibration diagnostics of lateral clearance value in the toothed gearing of differential gearbox of a turboprop engine. Aerospace MAI Journal. 2020;27(3):198-208. (In Russ.). DOI: 10.34759/vst-2020-3-198-208
  4. Krukov VA, Plyasov AV, Trushin NN.  Mathematical modeling of multithreaded transmission in the design of the helicopter main gearbox. Izvestiya Tula State University. Tekhnicheskie nauki. 2023(12):284–292. (In Russ.). DOI: 10.24412/2071-6168-2023-12-284-285
  5. Rokicki P, Kozik B, Budzik G, et al. Manufacturing of aircraft engine transmission gear with SLS (DMLS) method. Aircraft Engineering and Aerospace Technology: An International Journal. 2016;88(3):397–403. DOI: 10.1108/AEAT-05-2015-0137
  6. Yin ZY, Fu BB, Xue TB, et al. Development of helicopter power transmission system technology. Applied Mechanics and Materials. 2011;86:1–17. DOI: 10.4028/www.scientific.net/amm.86.1
  7. Vavilov DV. Small-module transmissions of spacecraft drive mechanisms based on coiled gears. PhD thesis. Krasnoyarsk: SFU; 2009. 154 p. (In Russ.).
  8. Lisin OV, Yurin SP, Uvaev SF. Reliability analysis of VR-26 main gearboxes with increased resource indicators, operated by airlines of the russian civil aviation. Nauchnyi vestnik GosNII GA. 2021(34):68–79. (In Russ.).
  9. Novikov ES, Silchenko PN, Timofeev GA, et al. Evaluation of the Influence of Manufacturing Faults in Gears on the Quality Indicators of Aircraft Actuators. BMSTU Journal of Mechanical Engineering. 2019(1):29-36. (In Russ.). DOI: 10.18698/0536-1044-2019-1-29-36
  10. Lekanov AV, Ulibushev EA, Masanov AG, et al. Assessment of the impact of error of gears production on actual contact and flexural stresses. Materialy XVII Mezhdunarodnoi nauchnoi konferentsii “Reshetnevskie chteniya” (November 12-14, 2013; Krasnoyarsk). Krasnoyarsk: SibGAU; 2013. Part 1. p. 22– 24. (In Russ.).
  11. Samuel PD, Pines DJ. A review of vibration-based techniques for helicopter transmission diagnostics. Journal of Sound and Vibration. 2005;282(1-2):475–508. DOI: 10.1016/j.jsv.2004.02.058
  12. Li M, Xie L, Ding L. Load sharing analysis and reliability prediction for planetary gear train of helicopter. Mechanism and Machine Theory. 2017;115:97–113. DOI: 10.1016/j.mechmachtheory.2017.05.001
  13. Kalashnikov AS. Technology of manufacturing gears. Moscow: Mashinostroenie; 2004. 480 p. (In Russ.).
  14. Vavilov DV, Iptyshev AA, Usakov VI. Simualtion of the spur gear serration rolling process with prescribed quality indicators. Vestnik SibGAU. 2008(4):83–86. (In Russ.).
  15. Kuzmenko NN, Mikhaylova AD. Some geometric-kinematic parameters of the process of cylindrical gear teeth rolling with the help of multiturn hyperboloidal knurlers multi-turn hyperboloid knurlers. Vestnik LGU im. V. Dalya. 2023(9):156–158. (In Russ.).
  16. Vitrenko VA, Stoyanov AA, Titova LN.  Instruments and peculiarities of rolling stock traction gear wheels teeth knurling. Vestnik LGU im. V. Dalya. 2023(12):117– 121. (In Russ.).
  17. Cherepakhin AA, Vinogradov VM. Features of the design of knurlers for the finishing of toothed rings. Izvestiya MGTU MAMI. 2013;2(1):110–113. (In Russ.).
  18. Trifan N, Ciobanu R, Ciobanu O. Generation of precessional gear teeth by plastic deformation. IOP Conference Series: Materials Science and Engineering. 2021;1009:012057. DOI: 10.1088/1757-899X/1009/1/012057
  19. Lyndin VA. A tool for rolling teeth and slots of increased precision. Moscow: Mashinostroenie; 1988. 144 p. (In Russ.).
  20. Vitrenko OS. Methodology for selecting geometry of a knurling instrument depending on geometric-kinematic parameters of knurling. Izvestiya KGTU. 2018(49):241–248. (In Russ.).
  21. Antonjuk VE, Skorokhodov AS, Aleksandrova VS, et al. Interrelation of parametres of measuring interaxal distance with indicators of noise of cylindrical tooth gearings. Vestnik Brestskogo gosudarstvennogo tekhnicheskogo universiteta. Mashinostroenie. 2015(4):12–15. (In Russ.).
  22. Basiniuk VL, Veligurski GA, Poplavskaya LA. Double-fl ank gear control system for improvement of quality of assembly works of transmissions on the basis of involute gears. Sborka v mashinostroenii, priborostroenii. 2015(9):23–25. (In Russ.).
  23. Rogachevskii N.I. Measuring the axial distance of involute wheels with an asymmetrical tooth profile. Vestnik Gomel'skogo gosudarstvennogo tekhnicheskogo universiteta im. P.O. Sukhogo. 2013(4):3–10. (In Russ.).
  24. Timofeev BP, Tran M.H. Increasing the overlap ratio in involute transmission. Journal of Instrument Engineering. 2020;63(12):1128—166. (In Russ.). DOI: 10.17586/0021-3454-2020-63-12-1128-1132

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