Abstract:
A power transmission arrangement includes a differential gear adapted to transfer power from an input shaft to a first output shaft, and a first brake adapted to effect the first output shaft and a second brake adapted to effect the input shaft.
Abstract:
Method and arrangement for driving a wheel of a vehicle in which the arrangement includes a planetary gear transmission (6) which in turn has a sun gear (7) connected to a driving axle (4), a planet carrier (11) on which at least one planet gear (8) is arranged and the planet gear is also arranged in engagement with the sun gear (7), and a ring gear (9) arranged around, and also in engagement with the planet gear. The driving arrangement also includes a braking device (16) and a wheel hub (12), which hub is connected to the planet carrier (11). The braking device is adapted to brake the planet carrier relative to a static part (18) arranged outside the planet gear carrier in the radial direction. The ring gear (9) and the outer, static part (18) are constructed in one piece in the form of an annular member (20).
Abstract:
An annular member (20′) intended for a braking device (16′) in the form of a multiple disk brake. The annular member includes a first portion which forms a part of a brake housing of the braking device and a second portion which forms a pressure surface for the disks in the braking device. The invention also relates to an arrangement for driving a wheel of a vehicle including the annular member.
Abstract:
A power transmission arrangement includes a differential gear adapted to transfer power from an input shaft to a first output shaft, and a first brake adapted to effect the first output shaft and a second brake adapted to effect the input shaft.
Abstract:
Method and device for displacing an object (4) a certain distance between a forward position (9) and a rearward position (10). An unit (14) is included that is displaceable between a first position (12) and a second position (13) for driving the object a distance corresponding to the distance between the first and the second position utilizing a friction joint (15) when the driving unit (14) is displaced from the first position to the second position. The friction joint is designed to enable displacement of the driving unit (14) and the object (4) relative to each another under the influence of a certain lowest force. Furthermore, the device includes a member (16) arranged to act on the driving unit (14) in a direction towards the second position (13) utilizing a spring force and a component (21) for interconnecting the driving unit (14) and the object (4). The interconnecting component (21) has a surface (22) designed to form the friction joint (15) in cooperation with a surface (23) of the driving unit. The interconnecting component and the object are interconnected so that the interconnecting component and the object are locked against displacement relative to each other when the object (4) is acted on in a direction towards the forward position (9) and the interconnecting component (21) is acted on in the opposite direction, for driving the object (4) to the rearward position (10) by means of interconnecting component (21) when the driving unit (14) is displaced to the second position (13) during influence of the spring member and for driving unit (14) to the first position (12) by means of the interconnecting component (21) when the object (4) is displaced to the forward position (9).
Abstract:
A planetary transmission includes a sun gear, which constitutes an input drive to the planetary transmission, a ring gear arranged around the sun gear, and a planet carrier which is designed to rotate and which carries at least one planet wheel, which planet wheel meshes with the sun gear and the ring gear. The planet carrier constitutes an output drive from the planetary transmission. The planetary transmission further includes a wet disk brake, a first set of brake disks in the brake being rotationally locked to the planet carrier and thereby in operation rotating at the rotational speed of the planet carrier. The planetary transmission further comprises an arrangement for circulation of a cooling fluid through the brake which is rotationally locked to the sun gear and thereby in operation rotates at the rotational speed of the sun gear.
Abstract:
An annular member intended to form a part of a bearing unit includes a first portion which radially externally forms a race for receiving at least one row of balls and radially internally is provided with teeth and forms a gear rim. The first portion is provided with a through-hole in the radial direction through the gear rim, which hole has a sufficiently great cross section to allow introduction of the balls radially from inside into the race.
Abstract:
A continuously variable transmission includes a variator unit having a variator input shaft and a variator output shaft, and a first, a second, a third and a fourth planetary gear set, wherein each of the first and second planetary gear sets has a first member operatively connected to a common transmission input shaft, which transmission input shaft is common to the first and second gear sets, and a second member operatively connected to an output shaft, which output shaft is common to the first and second gear sets. Each of the first and second planetary gear sets further includes a third member, and the third planetary gear set has a first, a second and a third member.
Abstract:
A hub unit includes an electric machine adapted for driving a wheel. The hub unit includes at least two planetary gears coupled in series between the electric machine and a wheel hub, and a gear shifting device for connecting and disconnecting, respectively, one of the planetary gears from being drivingly connected to the electric machine.
Abstract:
A continuously variable transmission includes a variator unit having a variator input shaft and a variator output shaft, and first, second and third planetary gear sets. The first and second planetary gear sets are arranged together and each includes a first member operatively connected to a common transmission input shaft and a second member operatively connected to a common output shaft, each of the first and second planetary gear sets further including a third member. The third planetary gear set has a first, second and third member. The variator input shaft is operatively connected to the third member of the second planetary gear set and the variator output shaft is operatively connected to the third member of the first planetary gear set. The first member of the third planetary gear set is operatively connected to the variator output shaft. The second member of the third planetary gear set is selectively connectable to the third member of the second planetary gear set and selectively connectable to the transmission housing. The third member of the third planetary gear set is operatively connected to a transmission output shaft. The common output shaft is selectively connectable to the transmission output shaft.