Throttle control of hydraulic drive speed

Authors: Dzhappuev I.R.
Published in issue: #1(42)/2020
DOI: 10.18698/2541-8009-2020-1-565
Category: Power, Metallurgic and Chemical Engineering | Chapter: Hydraulic Machines and Hydropneumatic units
Keywords: hydraulic systems, throttle, pump, valve, fluid, throttle control, spool, pressure, overlap, hydraulic distribution valve, hydraulic drive
Published: 22.01.2020

The paper considers the principle of throttle control of the hydraulic drive, it is shown that the adjustable throttle can be implemented in the design of the control valve in the form of milled grooves or holes in a perforated spool. The main attention is paid to the effect of changes in microgeometry in the slots of the hydraulic distribution valve on speed. The results of changing the area of the bore, pressure and flow rate in the throttle on the valve stroke without milling and with milling are presented. It is concluded that the use of milling grooves in the spool increases the range of speed control in the hydraulic drive.

References

[1] Bashta T.M., Rudnev S.S., Nekrasov B.B., et al. Gidravlika, gidromashiny i gidroprivody [Hydraulics, hydraulic machines and hydraulic drives]. Moscow, Mashinostroenie Publ., 1982 (in Russ.).

[2] Kirillovskiy Yu.L. Gidravlicheskie klapany [Hydraulic valves]. Moscow, Bauman MVTU Publ., 1977 (in Russ.).

[3] Lewis E.E., Stern H. Design of hydraulic control systems. McGraw-Hill, 1962. (Russ. ed.: Gidravlicheskie sistemy upravleniya. Moscow, Mir Publ., 1966.)

[4] Chuprakov Yu.I. Gidroprivod i sredstva gidroavtomatiki [Hydraulic drive and automation equipment]. Moscow, Mashinostroenie Publ., 1979 (in Russ.).

[5] Abramov E.I., Kolesnichenko K.A., Maslov V.T. Elementy gidroprivoda [Elements of hydraulic drive]. Moscow, Mashinostroenie Publ., 1977 (in Russ.).

[6] Bushuev A.Y., Ivanov M.Y., Korotaev D.V. Minimization of a mismatch time of movement of actuators of a throttle synchronization system. J. Phys.: Conf. Ser., 2018, vol. 1141, conf. 1, art. 012090. DOI: 10.1088/1742-6596/1141/1/012090 URL: https://iopscience.iop.org/article/10.1088/1742-6596/1141/1/012090

[7] Popov D.N., Sosnovskiy N.G., Siukhin M.V. Wave processes regulators optimization in hydraulic systems. IOP Conf. Ser.: Mater. Sci. Eng., 2018, vol. 468, no. 1, art. 012014. DOI: 10.1088/1757-899X/468/1/012014 URL: https://iopscience.iop.org/article/10.1088/1757-899X/468/1/012014

[8] Sturov E., Bumby C.W., Rayudu R., et al. Performance and stability analysis of hydraulically driven synchronous generators in power engineering. Int. Conf. POWERCON, 2018, pp. 1241–1248. DOI: 10.1109/POWERCON.2018.8602006 URL: https://ieeexplore.ieee.org/abstract/document/8602006

[9] Sun Moscow, Tan J. Simulation of the hydraulic support system and the constant pressure liquid supply based on intelligent systems. CSIA, 2019, pp. 293–298. DOI: 10.1007/978-3-030-15235-2_44 URL: https://link.springer.com/chapter/10.1007%2F978-3-030-15235-2_44

[10] Abbas A.I. et al. Optimization of Kaplan hydroturbine at very low head with rim-driven generator. J. Energy Resour. Technol., 2019, vol. 141, no. 11, art. 111204. DOI: 10.1115/1.4043710 URL: https://asmedigitalcollection.asme.org/energyresources/article-abstract/141/11/111204/727210/Optimization-of-Kaplan-Hydroturbine-at-Very-Low?redirectedFrom=fulltext