122results about "Mechanical transmission" patented technology

The invention provides a continuously variable transmission. The technical problem that the structure comprising an input end planetary gear set, an output end planetary gear set and a bucket wheel planetary gear set is complex is solved. The continuously variable transmission comprises an input end planetary gear set and an output end planetary gear set, a cavity planet carrier is arranged between the input end planetary gear set and the output end planetary gear set, the cavity planet carrier comprises a cavity input end cover and a cavity output end cover, the cavity input end cover is connected with the inner side of the input end planetary gear set, the cavity output end cover is connected with the inner side of the output end planetary gear set, a bucket wheel cavity shell is fixedly arranged between the cavity input end cover and the cavity output end cover, and a bucket wheel is fixed to a planet wheel connection shaft located inside the bucket wheel cavity shell. The continuously variable transmission can be widely applied in the drive field.

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 provides a stepless speed changer which solves the problems that when a traditional stepless speed changer is started, a power density lifting speed of a bucket wheel is low, and a working condition requiring a high output torque lifting speed can not be adapted. The stepless speed changer is characterized in that the stepless speed changer comprises an input end planetary gear set and an output end planetary gear set; a cavity planet carrier is arranged between the input end planetary gear set and the output end planetary gear set, and comprises a cavity input end cover and a cavity output end cover; a bucket wheel cavity housing is fixedly arranged between the cavity input end cover and the cavity output end cover; the inner side of the input end planetary gear set is connected with the cavity input end cover; the inner side of the output end planetary gear set is connected with the cavity output end cover; and a bucket wheel planetary gear set is arranged on one side of the interior of the bucket wheel cavity housing. The stepless speed changer can be widely applied in the field of transmission.

A transaxle includes a planetary gear reducer and a differential device. The planetary gear reducer includes a stepped pinion, a first needle bearing, a second needle bearing, and a carrier. The stepped pinion includes a pinion shaft with which a large diameter pinion and a small diameter pinion are integrated. The first needle bearing is fitted to a part of the pinion shaft outside the large diameter pinion. The second needle bearing is fitted to a part of the pinion shaft outside the small diameter pinion. The carrier is configured to support the stepped pinion via the first needle bearing and the second needle bearing such that the stepped pinion is rotatable with respect to the carrier, and to couple the stepped pinion and the differential device.

The present invention relates to an actuator assembly for an electronic parking brake having a multi-stage planetary gear mechanism. The present invention can provide an actuator assembly for an electronic parking brake. The multi-stage planetary gear mechanism comprises a center pin extending through through-holes of an entire planetary gear mechanism; a housing for supporting one end of the center pin; a plurality of a planetary gear carriers spaced apart from each other on the axial direction of the center pin and each including a through-hole; a plurality of planetary gears inserted into aplanetary gear shaft disposed radially around the through-hole on one side of the planetary gear carrier; and a sun gear of the planetary gear mechanism which is engaged with the planetary gear of the next stage on the opposite side of one surface of the planetary gear carrier on which the plurality of planetary gears are disposed so that the planetary gear carrier can rotate, wherein the diameter of the through-hole is larger than the diameter of the center pin.

A transmission may include a first input shaft, a second input shaft external and selectively connectable to the first input shaft, a third input shaft external to the second input shaft and selectively connectable to the first input shaft, an intermediate shaft, an idle shaft, and an output shaft, a planetary gear set mounted on the intermediate shaft and having first to third elements where the third element and one the first and second elements are selectively connectable to the intermediate shaft and the first and second elements are connected to the third and second input shafts, a plurality of gear sets allowing torque flows between the various shafts and the planetary gear set, first and second synchronizers on the output shaft, receiving torques from the input shafts, and selectively transmitting the received torque to the output shaft, and four clutches.

The invention provides a one mode continuously variable transmission with low loss configuration. The one mode, front wheel drive continuously variable transmission includes a transmission input member interconnected to an engine of the motor vehicle, a transmission output member, a continuously variable unit having a first pulley pair, a second pulley pair, and a chain wrapped around the first pulley pair and the second pulley pair. A planetary gear set includes a first member, a second member, and a third member. The first member is connected to the first pulley pair and the third member is connected to the transmission input member. A clutch is selectively engageable to connect the first member of the planetary gear set with the transmission input member. A band brake selectively engageable to connect the second member with a stationary member. The transmission output member is interconnected to a differential supported by sets of ball bearings.

A continuously variable transmission is provided, solving the technical problems in which a balancing force between a torque-changing bucket wheel and a fluid of a hydraulic two-speed synchronizer is limited, discharging all of the fluid to increase torque results in the loss of flexible transmission, and the structures of control and braking apparatuses are complex. The continuously variable transmission comprises an input end planetary gear set (101) and an output end planetary gear set (102). A cavity planetary gear carrier (104) is disposed between the input end planetary gear set (101) and the output end planetary gear set (102). The cavity planetary gear carrier (104) comprises a cavity input end cover (6) and a cavity output end cover (13). A bucket wheel cavity housing (14) is fixedly disposed between the cavity input end cover (6) and the cavity output end cover (13). An inner side of the input end planetary gear set (101) is connected to the cavity input end cover (6). An inner side of the output end planetary gear set (102) is connected to the cavity output end cover (13). One side inside the bucket wheel cavity housing (14) is provided with a bucket wheel planetary gear set (103). The continuously variable transmission of the invention is widely applicable in the field of transmissions.