摘要:
A two dimensional structure such as a disk or belt is shaped or distorted to form a buckling wave. At least one contact touches the wave, two contacts squeezing the wave between them providing a firmer connection. The wave is propagated along the structure by any of a variety of means including magnets or piezo actuators. This movement of the wave moves the contacts relative to the two dimensional structure, providing a high leverage ratio.
摘要:
The present disclosure is directed to a braking system for a work vehicle having hydraulically-actuated brakes. The braking system includes a primary release valve, a secondary release valve, and at least one braking mechanism having one or more brake springs. The braking mechanism(s) is hydraulically coupled to the primary release valve and the secondary release valve via one or more hydraulic lines. As such, during full-power operation of the work vehicle, when the brakes are to be released, the primary release valve is energized so as to overcome a valve biasing spring, thereby shifting the primary release valve so as to direct pressurized hydraulic fluid to the braking mechanism(s). Further, when the brakes are to be applied, the primary release valve is inactive so as to allow the hydraulic fluid to flow away from the braking mechanism(s) to a primary reservoir such that the one or more brake springs compress the braking mechanism(s). Alternatively, when power is lost to the work vehicle, the secondary release valve bypasses the primary release valve and directs pressurized hydraulic fluid to the braking mechanism(s) to release the brakes.
摘要:
The present disclosure provides an input damper for coupling to a torque-generating mechanism. The damper includes an outer cover, a hub, and a carrier assembly coupled to the hub. The carrier assembly is movably disposed within the cover. A clutch assembly moves between an engaged position and a disengaged position and is biased towards the engaged position. The input damper further includes an angular displacement mechanism operably coupled to the clutch assembly for moving the clutch assembly between the engaged position and disengaged position. The outer cover is coupled to the carrier assembly in the engaged position.
摘要:
The invention relates to a method for actuating a positively locking shifting unit (15), in which method, in a closing operation, a coupling element (16) which is connected to a first coupling half (S51) and has a bevelled coupling toothing system (23) is brought into engagement with a locking element (17) which is connected to a second coupling half (S52) and has a locking toothing system (19) and with a catching element (18) which is connected to the second coupling half (S52), can be moved in the circumferential direction with respect to the locking element (17), and has a bevelled catching toothing system (20), wherein a contact point (25) is set in the closing operation of the positively locking shifting unit (15), which contact point (25) lies after a crossing (27) of a synchronous rotational speed (29) in a differential rotational speed profile (26), and to a motor vehicle drive train having a positively locking shifting unit (15).
摘要:
The present invention relates to a hybrid vehicle comprising an internal combustion engine; a transmission; at least one driving wheel rotationally connected to the transmission; a coupling arrangement arranged between the internal combustion engine and the transmission, and controllable between a first state in which the drive shaft of the internal combustion engine is rotationally connected to the transmission and a second state in which the drive shaft of the internal combustion engine is rotationally disconnected from the transmission. The hybrid vehicle further comprises an energy recovery device connected to the coupling arrangement via a flexible driving member for allowing recovery and storage of energy recovered from deceleration of the at least one driving wheel; a sensor for sensing a parameter value indicative of desired deceleration; and a control unit for controlling the coupling arrangement to the second state when the sensed parameter value indicates desired deceleration of the hybrid vehicle.
摘要:
Es wird eine Reibschaltkupplung (1) mit einem Kupplungsring (2) und mit zwei Kupplungsscheiben (3, 4), die um eine Kupplungsdrehachse drehbar gelagert sind und an denen Reibflächen (21a, 21b, 22a, 22b) ausgebildet sind, vorgestellt. Dabei sind der Kupplungsring (2) und die Kupplungsscheiben (3, 4) parallel zur Kupplungsdrehachse und relativ zueinander derart verschiebbar, dass für eine Drehmomentübertragung erste Reibflächen (21a, 21b, 22a, 22b) an jeder der Kupplungsscheiben (3, 4) mit jeweils einer zweite Reibfläche (20a, 20b) am Kupplungsring (2) in flächigen Reibkontakt versetzbar sind. Die Erfindung zeichnet sich dadurch aus, dass jeweils eine erste (21a, 21b, 22a, 22b) und eine zweite (20a, 20b) Reibfläche als Reibflächenpaar mit jeweils einer in Richtung der Kupplungsdrehachse konvex und einer in Richtung der Kupplungsdrehachse konkav gekrümmten Reibfläche aufeinander abgestimmt sind.
摘要:
The present disclosure provides an input damper for coupling to a torque-generating mechanism. The damper includes an outer cover, a hub, and a carrier assembly coupled to the hub. The carrier assembly is movably disposed within the cover. A clutch assembly moves between an engaged position and a disengaged position and is biased towards the engaged position. The input damper further includes an angular displacement mechanism operably coupled to the clutch assembly for moving the clutch assembly between the engaged position and disengaged position. The outer cover is coupled to the carrier assembly in the engaged position.
摘要:
A synchronizing clutch having a component carrier, wherein the component carrier accepts a splined shaft therethrough and interact with the splined shaft to allow transfer of rotation between the splined shaft and the component carrier while also allowing the component carrier to slide axially along the splined shaft relative to an associated friction plate. The component carrier includes a plurality of friction members pivotably coupled within walled recesses of the component carrier, such that when the component carrier is urged toward the associated friction plate, at least a portion of the contact surface of the friction members initially contacts a surface of the friction plate and, as the component carrier continues to be urged toward the associated friction plate, each friction member is rotated, such that at least a portion of the contact surface of each friction member continues to contact a surface of the friction plate.
摘要:
A gear synchronizing system having a component carrier, wherein the component carrier accepts a splined shaft therethrough and interact with the splined shaft to allow transfer of rotation between the splined shaft and the component carrier while also allowing the component carrier to slide axially along the splined shaft relative to an associated friction plate. The component carrier includes a plurality of friction members pivotably coupled within walled recesses of the component carrier, such that when the component carrier is urged toward the associated friction plate, at least a portion of the contact surface of the friction members initially contacts a surface of the friction plate and, as the component carrier continues to be urged toward the associated friction plate, each friction member is rotated, such that at least a portion of the contact surface of each friction member continues to contact a surface of the friction plate.