| 摘要 |
In a transmission inertia brake (4) a ball ramp mechanism (8) is used to load a clutch pack (10) to slow a rotating transmission shaft (6) where the clutch pack (10) is carried on a one piece drive assembly (86) having a gear section (86A) for meshing with a transmission gear, an extension section (86B) for engaging a thrust plate (32) in an isolator assembly (34), a clutch section for engaging plurality of driven clutch plates (40) in the clutch pack (10) and a bearing section for rotational support within a brake housing (38). An armature (16) having an angled peripheral surface (18) engages a mating friction surface (18) formed in an end plate (14) to form a cone clutch, the armature (16) being magnetically pulled upon energization of an electrical coil (12). The armature (16) is nonrotatably connected to the control ring (26) of the ball ramp mechanism (8) through at least one connecting pin (48). Belleville washers (68) are used to apply an axial load on the ball ramp mechanism (8). A gerotor oil pump (88) provides a cooling lubricant through the clutch pack (10) in the ball ramp mechanism (8). A clutch cavity (110) is sealed for maintaining oil contact with the clutch cavity (110) and is at least partially defined by the drive assembly (86). The clutch cavity (110) is further defined by an oil blocking ring (108). <IMAGE> |
