A bicycle gearing system includes input and output shafts, two planetary gear systems, and a clutch mechanism. The clutch mechanism includes three clutch presser plates for frictional engagement with two clutch disks and a clutch base. A motor rotates a camshaft formed with cams selectively engageable with cam followers for driving the clutch presser plates to rotate. Steels balls are provided within cavities formed between the clutch presser plates and a clutch housing to convert rotation of clutch presser plates to linear force for frictional engagement with the two clutch disks and the clutch base. Different angles of rotation of the camshaft produce different clutch and gear combinations and different gear ratios.

A bicycle gearing system includes input and output shafts, two planetary gear systems, and a clutch mechanism. The clutch mechanism includes three clutch presser plates for frictional engagement with two clutch disks and a clutch base. A motor rotates a camshaft formed with cams selectively engageable with cam followers for driving the clutch presser plates to rotate. Steels balls are provided within cavities formed between the clutch presser plates and a clutch housing to convert rotation of clutch presser plates to linear force for frictional engagement with the two clutch disks and the clutch base. Different angles of rotation of the camshaft produce different clutch and gear combinations and different gear ratios.

A wheel hub for tandem axles including a housing, a reduction system, sun gears, planetary gears and a connection sleeve. The housing contains the reduction system, which is formed by the conical sun gears and the conical planetary gears that are accommodated in a supporting structure. The sun gears are mounted in a yoke that is attached to the supporting structure. The conical planetary gears are attached, respectively, to a differential housing in a fixed way and to an end of a semi-draft having free rotation. The connection sleeve is mounted in the end of the semi-draft having concentric mobility in relation to the conical planetary gear through an actuator system placed in an end of the supporting structure. The connection sleeve is formed by a body having a surface with double connection toothing disclosing a toothing of the yoke, and the toothing of the conical planetary gear.

A wheel hub for tandem axles including a housing, a reduction system, sun gears, planetary gears and a connection sleeve. The housing contains the reduction system, which is formed by the conical sun gears and the conical planetary gears that are accommodated in a supporting structure. The sun gears are mounted in a yoke that is attached to the supporting structure. The conical planetary gears are attached, respectively, to a differential housing in a fixed way and to an end of a semi-draft having free rotation. The connection sleeve is mounted in the end of the semi-draft having concentric mobility in relation to the conical planetary gear through an actuator system placed in an end of the supporting structure. The connection sleeve is formed by a body having a surface with double connection toothing disclosing a toothing of the yoke, and the toothing of the conical planetary gear.

A control device for a gearbox which includes a mechanical pump and an electric pump, the control device including a sensor module configured to detect a system oil pressure of a lubricating oil of the gearbox, a differential, a clutch, a brake, and a control module. The differential includes an input bevel gear meshing with a bevel pinion of an output shaft of the gearbox, a differential housing connected to the input bevel gear, and a first half shaft and a second half shaft which are provided in the differential housing and mesh with a bevel pinion of the differential housing. The second half shaft is connected to an input of the mechanical pump. The brake includes a brake caliper, a brake disc, and a brake disc shaft fixedly connected to the brake disc. The brake disc shaft is fixedly connected to the first half shaft.

A control device for a gearbox which includes a mechanical pump and an electric pump, the control device including a sensor module configured to detect a system oil pressure of a lubricating oil of the gearbox, a differential, a clutch, a brake, and a control module. The differential includes an input bevel gear meshing with a bevel pinion of an output shaft of the gearbox, a differential housing connected to the input bevel gear, and a first half shaft and a second half shaft which are provided in the differential housing and mesh with a bevel pinion of the differential housing. The second half shaft is connected to an input of the mechanical pump. The brake includes a brake caliper, a brake disc, and a brake disc shaft fixedly connected to the brake disc. The brake disc shaft is fixedly connected to the first half shaft.

A control device for a gearbox which includes a mechanical pump and an electric pump, the control device including a sensor module configured to detect a system oil pressure of a lubricating oil of the gearbox, a differential, a clutch, a brake, and a control module. The differential includes an input bevel gear meshing with a bevel pinion of an output shaft of the gearbox, a differential housing connected to the input bevel gear, and a first half shaft and a second half shaft which are provided in the differential housing and mesh with a bevel pinion of the differential housing. The second half shaft is connected to an input of the mechanical pump. The brake includes a brake caliper, a brake disc, and a brake disc shaft fixedly connected to the brake disc. The brake disc shaft is fixedly connected to the first half shaft.

The invention relates to a gearbox for vehicles, comprising a planetary gear with a ring gear a sun gear and a planet carrier on which at least one planet gear is rotatable mounted, which ring gear and sun gear engages with the at least one planet gear by teeth; and a gearbox housing surrounding the planetary gear. A first axially movable coupling sleeve is in a first gear position arranged to engage the ring gear with the gearbox housing in a second gear position arranged to engage the sun gear with the planet carrier and in a third gear position arranged to engage the planet carrier with the gearbox housing. A second axially movable coupling sleeve is in the third gear position arranged to engage the ring gear with an output shaft. The invention also relates to a vehicle, which comprises such a gearbox.

The invention relates to a gearbox for vehicles, comprising a planetary gear with a ring gear a sun gear and a planet carrier on which at least one planet gear is rotatable mounted, which ring gear and sun gear engages with the at least one planet gear by teeth; and a gearbox housing surrounding the planetary gear. A first axially movable coupling sleeve is in a first gear position arranged to engage the ring gear with the gearbox housing in a second gear position arranged to engage the sun gear with the planet carrier and in a third gear position arranged to engage the planet carrier with the gearbox housing. A second axially movable coupling sleeve is in the third gear position arranged to engage the ring gear with an output shaft. The invention also relates to a vehicle, which comprises such a gearbox.

A bicycle gearing system includes input and output shafts, two planetary gear systems, and a clutch mechanism. The clutch mechanism includes three clutch presser plates for frictional engagement with two clutch disks and a clutch base. A motor rotates a camshaft formed with cams selectively engageable with cam followers for driving the clutch presser plates to rotate. Steels balls are provided within cavities formed between the clutch presser plates and a clutch housing to convert rotation of clutch presser plates to linear force for frictional engagement with the two clutch disks and the clutch base. Different angles of rotation of the camshaft produce different clutch and gear combinations and different gear ratios.