| 摘要 |
A multi cone selector in a transmission employs sandwiched cone friction surfaces 19 A, 20 A and 21 A and these are shown in free or unengaged state while the corresponding friction surfaces as numerals 19, 20 and 21 are shown as engaged. This comparative illustration shows the relative positions of the surfaces at different times since the "A" surfaces and the non "A" surfaces are the same circumferential surfaces. The cone selector is used to engage free rotating gear a female part 22 of a multi-cone selector. A hydraulic actuator 23 is received by internal gear case wall 24 formed so as to prevent any radial or axial movement of the actuator itself. A hydraulic coupling, in this case the hydraulic coupling is formed as hydraulic springs or bags illustrated at 26 . The crown of hydraulic spring outlet piston is formed so as to clip in a housing of a thrust bearing 29 . The function of thrust bearing 29 is to provide relative rotational movements between cone clutch male part 30 and a piston of a hydraulic spring whether in idling or power transmitting mode. Twin cone selector comprises male part 30 , female part 22 and cones 31 and 32 . Cone 31 operates as a driving cone and is constrained but free to slide parallel to the axis of rotation in circular slots 33 . Cone 32 operates as a driven cone and is constrained but free to slide parallel to the axis of rotation in circular slots 36. |
