Development of unconventional ways to improve performance of the axial piston hydromashines taking into account repair abilities
DOI:
https://doi.org/10.15587/1729-4061.2014.27996Keywords:
hydromachine, wear, additives, solid lubricants, selective transfer, flexible inserts, durability, copper filmsAbstract
As a result of studies, operating conditions of friction pairs of axial piston hydromachine parts were examined and real ways to use a number of tribological techniques to improve their performance were shown. It was found that the most simple methods that increase the performance of the friction units of axial-piston hydromachines, are using surfactants in hydraulic oil, creating conditions for the manifestation of the selective transfer with forming a thin copper film on the steel parts and using mobile insertions of active materials. A summary table with the main advantages of the considered unconventional methods that improve the running-in quality of axial-piston hydromachine parts and their friction units, which is of practical value for the operators and industrialists during repair works was given. The main advantages and disadvantages of unconventional methods, applicable for improving axial piston hydromachine durability were shown. So using surface active liquid additives increases wear resistance by 3 times, load-bearing capacity by about 2 times with the possibility to replace bronze with steel. Creating conditions for selective transfer provides smaller parameters that increase hydromachine performance and requires another liquid lubricating medium such as glycerin. A more efficient method is using special active solid lubricants, which allows not only to abandon hydrocylinder bronze blocks, replacing them with steel, but also enhance the durability up to 5 times, and fluid working pressure up to 400 atmospheres. This compensates for the costs, associated with manufacturing narrow pockets for a solid lubricant.
References
Grinchar, N. G. (2007). Metodyi i sredstva povyisheniya ekspluatatsionnoy nadezhnosti gidroprivodov dorozhnyih i stroitelnyih mashin. Moscow: 369.
Mosalov, R. V. (2003). Vliyanie mehanicheskih primesey na velichinu iznosa par treniya aksialno-porshnevyih nasosov. Izvestiya OrelGTU, Transport i stroitelstvo, 251–252.
Lozovskiy, V. N. (1974). Nadezhnost gidravlicheskih agregatov. Moscow: Mashinostroenie, 320.
Kosolapov, S. V. (2011). Analiz metodov i parametrov diagnostirovaniya rabochey zhidkosti gidroprivoda putevyih mashin. Metodyi raschetov konstruktsiy i sooruzheniy, 125, 98–102.
Evdokimov, V. D. (2011). Tribologiya znakoperemennogo treniya.Odessa: Interprint, 432.
Pavlov, A. I. (2004). Povyishenie nadezhnosti gidroprivodov lesnyih mashin. Dis. doktora tehnicheskih nauk,Yoshkar-Ola, 408.
Garkunov, D. N., Polyakov, A. A. (1973). Povyishenie iznosostoykosti detaley konstruktsiy samoletov. Moscow: Mashinostroenie, 199.
Sveshnikov, V. K. (2010). Mezhdunarodnyiy spravochnik nasosov i gdirodvigateley 2000-2009. Gidravlika. Pnevmatika. Privodyi, 1 (3), 14–17.
Kassem, S. A. (2000). Effect of port plate silencing grooves on performance of swash plate axial piston pumps. Current Advances in Mechanical Design and Production, Proc. of 7th MDP Conf., Cairo Pergamon press, 139–148. DOI: http://dx.doi.org/10.1016/b978-008043711-8/50015-5
Bergada, J. M., Watton, J., Kumar, S. (2008). Pressure, flow, force and torque between the barrel and port plate in axial piston pump. ASME Journal of Dynamic System, Measurement and control, 130 (1), 011011-1/16. DOI: http://dx.doi.org/10.1115/1.2807183
Hong, Y. S., Lee, S. Y., Kim, S. H., Lim, H. S. (2006). Improvement of the low-speed friction characteristics of a hydraulic piston pump by PVD-coating of TiN. Journal of Mechanical Science and Technology, 20 (3), 358–365. DOI: http://dx.doi.org/10.1007/bf02917518
Ivantysynova, M., Lasaar, R. (2004). An Investigation into Micro – and Macrogeometric Design of Piston Cylinder Assembly of Swash plate machines. International Journal of Fluid Power 5, 1, 23–36. DOI: http://dx.doi.org/10.1080/14399776.2004.10781181
Bashta, T. M. (1970). Gidravlicheskie mashinyi i gidravlicheskie privodyi. M.: Mashinostroenie, 560.
Evdokimov, V. D., Dovbenko, M. N. (2013). Povyishenie dolgovechnosti aksialno-porshnevyih gidromashin.Odessa: Interprint, 144.
Evdokimov, V. D., Rebinder, P. A. (1969). O proyavlenii adsorbtsionnogo ponizheniya prochnosti pri reversivnom trenii skolzheniya. DAN SSSR, 185, 6, 48-52.
Garkunov, D. N. (1977). Povyishenie iznosostoykosti na osnove izbiratelnogo perenosa. M.: Mashinostroenie, 215.
Garkunov, D. N. (2002). Tribotehnika (konstruirovanie, izgotovlenie i ekspluatatsiya). Ucheb. 5e izd. pererab. i dob. M.: Izdatelstvo MSHA, 632.
Evdokimov, V. D. (1998). Uluchshenie rabochih harakteristik pretsizionnoy paryi porshen-vtulka putem ispolzovaniya podvizhnyih vstavok. Visnik ONMU, 2, 3-6.
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