- Tytuł:
- Accuracy of spindle units with hydrostatic bearings
- Autorzy:
-
Fedorynenko, D.
Sapon, S.
Boyko, S. - Powiązania:
- https://bibliotekanauki.pl/articles/386560.pdf
- Data publikacji:
- 2016
- Wydawca:
- Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
- Tematy:
-
spindle
hydrostatic bearing
spindle unit
adjustable hydrostatic bearing
machining accuracy
trajectory
bearing surface imperfection
wrzeciono
łożysko hydrostatyczne
dokładność obróbki
trajektoria
powierzchnia nośna - Opis:
- The work is devoted to the research ofprecision regularities in a spindle unit by the trajectory of the spindle installed on hydrostatic bearings.The mathematical model of trajectories spindle with lumped parameters that allows to define the position of the spindle with regard the simultaneous influence of design parameters, geometrical deviations ofform, temperature deformation bearing surfaces, the random nature of operational parameters and technical loads of hydrostatic bearings has been developed. Based on the results of numerical modeling the influence of shape errors of bearing surface of hydrostatic bearing on the statistical characteristics of the radius vector trajectories of the spindle by varying the values rotational speed of the spindle and oil pressure in front hydrostatic bearing has been developed. The obtained statistical regularities of precision spindle unit have been confirmed experimentally. It has been shown that an effective way to increase the precision of spindle units is to regulate the size of the gap in hydrostatic spindle bearings. The new design of an adjustable hydrostatic bearing, which can improve the accuracy of regulation size gap has been proposed.
- Źródło:
-
Acta Mechanica et Automatica; 2016, 10, 2; 117-124
1898-4088
2300-5319 - Pojawia się w:
- Acta Mechanica et Automatica
- Dostawca treści:
- Biblioteka Nauki
Artykuł