Options for Self-Braking and Modification of the Cylindrical Self-Braking Gears

Abstract

Helical gears are being widely used in mechanical engineering, since their performance characteristics are superior to the spur gears. Methods for geometric and strength calculations of helical gears are known, but dependencies included in them are used, as a rule, at inclination angles of up to 60°. Region of the larger angles was not yet sufficiently studied. However, it is in the region of the angle high values that the gears acquire many useful properties, for example, high gear ratio due to possibility of significant down to unity reduction in the number of gear teeth, or the possibility of self-braking. This phenomenon is being used in technology for a long time; it is widely applied in screw--nut gears and worm gears, since it allows, by combining the functions of motion conversion and automatic braking, to create simple and compact designs for the machine and device drives. At the same time, worm gears are characterized by low efficiency of forward motion, significant heating and wear of working surfaces, they require introduction of antifriction materials, which, as a rule, have low load-bearing capacity. In this regard, the urgent task is to increase forward motion efficiency of the cylindrical self-braking gear mechanisms. The existing modifications of cylindrical self-braking gears are reviewed and systematized, two new modifications and their properties are described. Conditions for a new version of self-braking and recommendations for using modifications of cylindrical self-braking gears are provided

Please cite this article in English as:

Timofeev G.A. Options for self-braking and modification of the cylindrical self-braking gears. Herald of the Bauman Moscow State Technical University, Series Mechanical Engineering, 2023, no. 4 (147), pp. 55--67 (in Russ.). DOI: https://doi.org/10.18698/0236-3941-2023-4-55-67

References

[1] Bushenin D.V. Nesoosnye vintovye mekhanizmy [Non-axial screw mechanisms]. Moscow, Mashinostroenie Publ., 1985.

[2] Veyts V.L. Dinamika mashinnykh agregatov [Dynamics of machine units]. Leningrad, Mashinostroenie Publ., 1969.

[3] Veyts V.L., Kochura A.E., Martynenko A.M. Dinamicheskie raschety privodov mashin [Dynamic calculations of machine drives]. Leningrad, Mashinostroenie Publ., 1971.

[4] Kozhevnikov S.N. Teoriya mekhanizmov i mashin [Theory of mechanisms and machines]. Moscow, Mashinostroenie Publ., 1973.

[5] Morozov V.V., Panyukhin V.I., Panyukhin V.V. Zubchato-vintovye peredachi dlya preobrazovaniya vrashchatelnogo dvizheniya v postupatelnoe [Helical gearsfor transformation of rotary motion into translational one]. Vladimir, VlGU Publ., 2000.

[6] Panyukhin V.I. Samotormozyashchiesya mekhanizmy [Self-stopping gears]. Vladimir, Obl. sovet NTO Publ., 1981.

[7] Turpaev A.I. Samotormozyashchiesya mekhanizmy [Self-stopping gears]. Moscow, Mashinostroenie Publ., 1976.

[8] Panyukhin V.V. Tsilindricheskie samotormozyashchiesya peredachi, osnovy teorii i rascheta. Dis. kand. tekh. nauk [Cylindrical self-stopping gears, fundamentals of theory and calculation. Cand. Sc. (Eng.). Diss.]. Moscow, BMSTU, 1987.

[9] Timofeev G.A. Peculiar features of power loading and self-retardation of inverse involute gearings with external engagement. Izvestiya vysshikh uchebnykh zavedeniy. Mashinostroenie [BMSTU Journal of Mechanical Engineering], 2013, no. 1, pp. 3--8 (in Russ.). DOI: http://dx.doi.org/10.18698/0536-1044-2013-1-3-8

[10] Timofeev G.A., Panyukhin V.V., Sashchenko D.V. Studying self-braking planetary gears with single-crown satellites. J. Mach. Manuf. Reliab., 2020, vol. 49, no. 4, pp. 308--313. DOI: https://doi.org/10.3103/S1052618820040147

[11] Virabov R.V. About criteria of jamming of self-stopping gears. Vestnik mashinostroeniya, 1987, no. 4, pp. 33--38 (in Russ.).

[12] Timofeev G.A., Panyukhin V.V. Analysis of self-stopping criteria. Vestnik mashinostroeniya, 2002, no. 9, pp. 3--8 (in Russ.).

[13] Panyukhin V.I. Tsilindricheskaya zubchataya peredacha [Cylindrical gear transmission]. Patent SU 804953. Appl. 20.10.1976, publ. 15.02.1981 (in Russ.).

[14] Popper I.B., Pessen D.W. The twinworm drive --- a self-locking worm-gear transmission of high efficiency. J. Eng. Ind., 1960, vol. 82, no. 3, pp. 191--198. DOI: https://doi.org/10.1115/1.3663030

[15] Rao A.C. Gear friction coefficients and forces. Wear, 1979, vol. 53, no. 1, pp. 87--93. DOI: https://doi.org/10.1016/0043-1648(79)90219-9

[16] Roano A. Helical gearing. Patent US 2553383. Appl. 14.07.1947, publ. 15.05.1951.

[17] Roano A. Helical gearing. Patent US 2582384. Appl. 14.07.1947, publ. 15.05.1951.

[18] Popper J.B. Cooperating wedges including mating worms. Patent US 2973660. Appl. 03.09 .1958, publ. 07.03.1961.

[19] Howell I.D. Helical gearing. Patent US 3481215. Заявл. 25.03.1968, опубл. 02.12.1969.

[20] Roano A. Zahnradgetriebe. Patent DE 1040864. Appl. 01.03.1956, publ. 09.10.1958.

[21] Panyukhin V.V. Tsilindricheskaya zubchataya peredacha [Spur gearing]. Patent SSSR 1479765. Appl. 26.08.1987, publ. 15.05.1989 (in Russ.).