Abstract: A clutch device with friction linings includes: a clutch housing, the friction linings including a first friction lining and a second friction lining, the first friction lining being arranged on the clutch housing, the clutch housing including a stop surface; a tapered ring, the second friction lining being arranged on the tapered ring, the plurality of friction linings being arranged relative to one another so that the plurality of friction linings can be brought into full contact with one another in a contact plane, the tapered ring including a reference surface; a spring element; a clutch actuating device, a wear gap being formed between the stop surface and the reference surface, the wear gap configured for becoming wider as the friction linings wear; and a locking element configured for being moved into the wear gap when the wear gap exceeds a definable maximum width.

Abstract: A rotational coupling includes a rotor configured for rotation about a rotational axis. The rotor includes a hub disposed about the axis and configured to receive a shaft and a disc extending radially outwardly from the hub. An armature and electromagnet are disposed on opposite axial sides of the disc. The electromagnet is fixed against rotation. A bearing is disposed between the hub and the electromagnet. The hub and electromagnet engage the inner and outer races, respectively of the bearing on opposite axial sides of the bearing. A spacer is disposed radially inwardly of the electromagnet and engages the inner race of the bearing on the same axial side of the bearing as the electromagnet. An air gap separates the spacer from the electromagnet. A shield is supported by the spacer and extends radially outwardly therefrom such that a portion of the shield is axially aligned with the air gap.

Abstract: A drive assembly for a work vehicle includes an electric motor configured to rotate a driving shaft and a gear train configured to transmit torque between the driving shaft and a driven shaft. The drive assembly also includes a clutch member having an engaged position and a disengaged position. The clutch member is configured to allow torque transfer between the driving shaft and the driven shaft when in the engaged position. The clutch member is configured to prevent torque transfer between the driving shaft and the driven shaft when in the disengaged position. The clutch member is biased toward the disengaged position to prevent torque transfer in a direction from the driven shaft toward the driving shaft in an overspeed condition of the drive assembly.

Abstract: A cylindrical bi-directional wedge clutch, including: an axis of rotation; a carrier ring; a wedge plate including at least a portion disposed radially inwardly of the carrier ring; and a tapered hub disposed radially inwardly of the carrier ring, displaceable, for first and second locked modes in which the hub and the carrier ring are non-rotatably connected, in a first axial direction to contact the wedge plate and expand the wedge plate radially outwardly, and displaceable, for a free-wheel mode in which the tapered hub and the carrier ring are rotatable with respect to each other, in a second axial direction, opposite the first axial direction. For the first locked mode, the tapered hub and carrier rotate in a first circumferential direction. For the second locked mode, the tapered hub and carrier ring rotate in a second circumferential direction, opposite the first circumferential direction.

Abstract: A self-adjusting mechanism for a friction clutch is disclosed. The mechanism includes first and second hub members with mating ratchet teeth, and an adjustment arm having a non-slip connection with the first hub member for driving the first hub member in opposite rotational directions, and a worm gear which, when rotated, moves an adjustment ring of the clutch to adjust the friction surfaces to compensate for wear. The mechanism also includes a lost-motion connection located between the worm gear and the release mechanism of the clutch. The adjustment arm on the first hub member has a connection with the release mechanism of the clutch. The release mechanism is movable through an adjustment cycle during which the worm gear is rotated to move the adjustment ring of the clutch to adjust friction surfaces to compensate for wear.

Abstract: The present disclosure relates to durability enhancement techniques for a dry-clutch vehicle transmission. A cooling system that provides a direct convective cooling path to friction surfaces is disclosed. Also disclosed is a continuously variable clutch wear compensation assembly configured to adjust the position of clutch assembly components on-demand or as needed.

Abstract: A clutch device having at least one torque transfer device that can be engaged and disengaged in the axial direction and is frictionally engaged in the engaged state, and at least one wear adjustment device, which has at least one rotatable adjusting ring, at least one rotatably supported spindle drive with a drive pinion, which acts on the adjusting ring, and at least one drive assembly which may be made to engage with the drive pinion and which is pre-tensioned in the axial direction, to turn the spindle drive in the case of wear, the pre-tensioning force of the drive assembly being stepped.

Abstract: A method operates a clutch release system of a vehicle having an electrically actuable clutch release unit including a sensor for detecting a position of a release piston, a control unit for controlling the release piston as a function of a detected position of a clutch actuating device, and a sensor for detecting the position of the clutch actuating device. A characteristic curve function describes a relationship between the position of the clutch actuating device and the position of the release piston. The function is taken into consideration during actuation of the clutch release system to obtain a consistent clutch release at a defined position of the clutch actuating device despite progressive wear of the clutch release system.

Abstract: A control system for a transmission engages three clutches to create braking within the transmission to slow a machine during a shuttle shifting operation. The control system may apply the clutches so as to allocate wear between the clutches equally or unequally, as desired.

Abstract: A rotational coupling device for use as a clutch, a brake, or a combination clutch and brake is provided having structure to compensate for wear on braking surfaces. The device includes an armature coupled to an output member and movable between positions of engagement with a rotor and a brake plate. The brake plate is coupled to a stationary field shell that houses a conductor on one side of the rotor opposite the armature and brake plate. The brake plate is axially spaced from the field shell and a removable shim or adjustable spacer is disposed between the brake plate and the field shell. Removal of the shim or adjustment of the spacer permit movement of the brake plate towards the field shell to compensate for wear in any of the clutch or brake engagement surfaces of the device.

Abstract: A rotational coupling device for use as a clutch, a brake, or a combination clutch and brake is provided having structure to compensate for wear on braking surfaces. The device includes an armature coupled to an output member and movable between positions of engagement with a rotor and a brake plate. The brake plate is coupled to a stationary field shell that houses a conductor on one side of the rotor opposite the armature and brake plate. The brake plate is axially spaced from the field shell and a removable shim or adjustable spacer is disposed between the brake plate and the field shell. Removal of the shim or adjustment of the spacer permit movement of the brake plate towards the field shell to compensate for wear in any of the clutch or brake engagement surfaces of the device.

Abstract: By rotating a regulating bolt about an axis thereof to move forward/backward with respect to a protrusion portion, a lever is rotated about a shaft portion of an adjusting member. Therefore, the shaft portion of an adjusting member is rotated together with the lever to adjust a gap formed between a disk and a piston. After the gap is adjusted, the regulating bolt is fastened owing to a lock nut and a screw hole of the protrusion portion to thereby fix an forward/backward position of the regulating bolt with respect to the protrusion portion. In addition, a fixing bolt is screwed into a screw hole of a second housing portion to thereby fix a rotational position of the lever. Accordingly, the rotational position of the lever is double-locked.

Abstract: A wear compensating device, including: at a first axial end, an annularly-shaped base element; an index trigger element connected to the base element; a first annularly-shaped element, at least partially rotatable with respect to the base element, engaged with the index trigger element, and at least partially rotatable with respect to the index trigger element; and at a second axial end, opposite the first axial end, a second annularly-shaped element with a first ramp, the second annularly-shaped element engaged with the first annularly-shaped element and rotatable with respect to the first annularly-shaped element. In response to a specified amount of displacement by a portion of the index trigger element, the first and second annularly-shaped elements are rotatable to change a circumferential position of the first ramp.

Abstract: The invention relates to a method for controlling a coupling device between an input shaft driven by a motor and an output shaft that can transmit a maximum torque according to the position of an actuator of the coupling device 5 complying with a law of behavior of the coupling means according to which: a set value (Cemb,cons) of maximum torque to be transmitted is defined; the actual position (Xemb,mes) of the actuator of the coupling device is measured; a set value (Xemb,cons) is determined for actuating the coupling device and is sent to the actuator of the coupling device, while using a law of behavior of the coupling means obtained by interpolation between a first law of reference of behavior of the coupling means and at least one second law of reference of behavior of the coupling means, and; an auto-adaptation of the law of behavior of the coupling means is carried out for taking into consideration its evolution resulting from the use.