The lubricant and implants influence above tribological behaviour at three cone bits bearings

• Autorzy: Ripeanu R. G. , Tudor I. , Zidaru I. , Drumeanu A. C.
• Języki publikacji: EN

Abstrakty

EN

Sliding bearings at three cone bits are lubricated in heavy conditions. To improve tribological behaviour, samples of bearing materials were made with implants with antifriction materials having different rapports between the implant and free base material in the presence of different greases. Tests made on a CSM microtribometer and on an Amsler A135 were to establish the proper implant rapport, measuring friction coefficient, and wear. The behaviour of the greases containing P.T.F.E was also established. In a second phase of the tests was designed and realised a device for testing three cone bits bearings at real axial loads. A SPIDER 8 device and inductive traducers were used to establish the friction coefficients and the temperature on the friction surface, depending on implants' dimensions and grease lubricant type.

Słowa kluczowe

EN

three cone bits bearing; friction coefficient; copper implant

PL

stożkowe łożysko ślizgowe; współczynnik tarcia; implant miedziowy

• Wydawca: Wydawnictwo Naukowe Instytutu Technologii Eksploatacji - Państwowego Instytutu Badawczego
• Czasopismo: Scientific Problems of Machines Operation and Maintenance
• Rocznik: 2010
• Tom: Vol. 45, nr 1
• Strony: 25--32
• Opis fizyczny: Bibliogr. 4 poz., fot., rys., tab.

Twórcy

autor

Ripeanu R. G.

autor

Tudor I.

autor

Zidaru I.

autor

Drumeanu A. C.

• Petroleum-Gas University of Ploiesti, Blvd. Bucharest, No. 39, Ploiesti, Romania,

Bibliografia

• [1] Ripeanu R.G. et al.: Research above rising durability at three cone drill bits (in Romanian), Research contract no. 45, Petroleum-Gas University of Ploiesti, 2008.
• [2] Zidaru I., Ripeanu R.G., Tudor I., Drumeanu A.C., Research regarding the improvements of tribological behavior in three cone bits bearings, FME Transactions, Vol. 37, No. 2, pp. 99-102, 2009.
• [3] Balaceanu M., Braic V., Kiss A., Zoita C.N., Vladescu A., Braic M., Tudor I., Popescu A., Ripeanu R.G., Logofatu, C. and Negrila. C.C., Characteristics of arc plasma deposited TiAlZrCN coatings, Surface and Coatings Technology, Vol. 202, No. 16. pp. 3981-3987, 2008.
• [4] Ripeanu R.G., Drumeanu A.C., Luca M., Ripeanu L., Establishment of the influence of soybean oil on wear behavior of cutting tools durability, J. of the Balkan Tribological Association, Vol. 14, No. 4, pp. 490-499, 2008.