TY - JOUR
T1 - Effect of grooved face on the dynamic pressure support characteristics of cylinder/valve plate pair in the axial piston pump
AU - Zhao, Yuan
AU - Zhou, Junjie
AU - Jing, Chongbo
AU - Wei, Chao
N1 - Publisher Copyright:
© 2018, Editorial Board of Journal of Harbin Institute of Technology. All right reserved.
PY - 2018/1/30
Y1 - 2018/1/30
N2 - To improve the lubrication characteristics of cylinder/valve plate in the axial piston pump, the dynamic pressure support characteristics with the grooved flow distribution face is studied. A theoretical dynamic pressure model is established. According to the law of conservation of flow and by applying the finite volume method to numerical discretization, the distribution law of dynamic pressure and the effect of support with the grooved face are analyzed, and the change law of the friction coefficient under the whole film lubrication condition is obtained as well. A test rig is built to verify the test results. Under certain conditions, the auxiliary support belt with grooves is beneficial to dynamic pressure support characteristics. With the increase of numbers of grooves, the dynamic pressure support is improved. There is a feature inclination angle at which the dynamic pressure support characteristics with grooved flow distribution face is the same as with non-grooved flow distribution face. At a particular cylinder inclination angle, the corresponding groove depth at which the "feature inclination angle" is larger than the cylinder inclination angle could be selected, so that the dynamic pressure support characteristics of cylinder/valve plate pair could be improved by auxiliary support belt with grooves.
AB - To improve the lubrication characteristics of cylinder/valve plate in the axial piston pump, the dynamic pressure support characteristics with the grooved flow distribution face is studied. A theoretical dynamic pressure model is established. According to the law of conservation of flow and by applying the finite volume method to numerical discretization, the distribution law of dynamic pressure and the effect of support with the grooved face are analyzed, and the change law of the friction coefficient under the whole film lubrication condition is obtained as well. A test rig is built to verify the test results. Under certain conditions, the auxiliary support belt with grooves is beneficial to dynamic pressure support characteristics. With the increase of numbers of grooves, the dynamic pressure support is improved. There is a feature inclination angle at which the dynamic pressure support characteristics with grooved flow distribution face is the same as with non-grooved flow distribution face. At a particular cylinder inclination angle, the corresponding groove depth at which the "feature inclination angle" is larger than the cylinder inclination angle could be selected, so that the dynamic pressure support characteristics of cylinder/valve plate pair could be improved by auxiliary support belt with grooves.
KW - Axial piston pump
KW - Cylinder/valve pair
KW - Dynamic pressure support characteristics
KW - Feature inclination angle
KW - Grooved face
UR - http://www.scopus.com/inward/record.url?scp=85042746675&partnerID=8YFLogxK
U2 - 10.11918/j.issn.0367-6234.201611052
DO - 10.11918/j.issn.0367-6234.201611052
M3 - Article
AN - SCOPUS:85042746675
SN - 0367-6234
VL - 50
SP - 169
EP - 174
JO - Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology
JF - Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology
IS - 1
ER -