A transmission includes an input shaft, an output shaft, a first planetary gear mechanism, a second planetary gear mechanism, and a first variable device. The first planetary gear mechanism includes a first carrier connected to the input shaft, a first planetary gear connected to the first carrier, a first sun gear connected to the first planetary gear, and a ring gear connected to the first planetary gear. The second planetary gear mechanism includes a second sun gear connected to the first carrier, a second planetary gear connected to the second sun gear, and a second ring gear connected to the second planetary gear and connected to the first ring gear. The first variable device is connected to the first ring gear and the second ring gear to continuously change a speed ratio of the output shaft to the input shaft.

A work vehicle includes an engine; at least one continuously variable power source (CVP) configured to operate according to a commanded torque; an output shaft; a transmission positioned operatively between the output shaft and the engine and the CVP such that the output shaft selectively receives power from one or both of the engine and the at least one CVP; and a prognostics system configured to monitor a respective component associated with at least one of the output shaft or the transmission. The prognostics system includes a prognostics controller having a processor and memory architecture, configured to: receive input data, including the commanded torque; generate a usage value for the respective component for a time period as a function of the commanded torque; aggregate the usage value with previous usage values to generate a prognostics value over a life of the respective component; and store the prognostics value.

A hydraulic system for a work vehicle has a first hydraulic circuit at a first nominal pressure and a second hydraulic circuit at a second nominal pressure different than the first nominal pressure. A dual-chamber hydraulic reservoir includes a first tank associated with the first hydraulic circuit and defining a first opening and a second tank associated with the second hydraulic circuit and defining a second opening. An exchange system has a particulate filter disposed within an exchange path between the first opening of the first tank and the second opening of the second tank. The exchange system is configured to resupply the first tank with hydraulic fluid from the second tank.

A planetary gear module for a swing reducer of a construction machine is provided. The planetary gear module can fit between first and second adjacent planetary gear modules. The planetary gear module comprises a planetary gear stage and a stage support for supporting the planetary gear stage, the stage support comprises an input support interface for stacking the first adjacent planetary gear module onto the planetary gear module and an output support interface for stacking the planetary gear module onto the second adjacent planetary gear module, the planetary gear stage comprises an input gear interface for operatively connecting the planetary gear module to the first adjacent planetary gear module and an output gear interface for operatively connecting the planetary gear module to the second adjacent planetary gear module. The input and output support interfaces as well as the input and output gear interfaces are configured to match to each other.

A rotary machine fixture couples a first rotary machine to a second rotary machine and fixes the first rotary machine and the second rotary machine to a work vehicle. A hydraulic pump drive assembly to supply hydraulic fluid for a work vehicle includes an electric machine configured to convert electrical energy from an electrical supply line to rotary motion, a hydraulic pump configured to circulate the hydraulic fluid through a hydraulic supply line from the rotary motion of the electric machine, a fixture having a first rotary machine interface configured to mount the electric machine to the fixture, a second rotary machine interface configured to mount the hydraulic pump to the fixture, and a work vehicle interface configured to mount the fixture to the work vehicle such that the hydraulic pump and the electric machine are fixed to the work vehicle through the fixture.

A working machine includes a rear machine body on which an operator's seat is mounted, a front machine body to which a working tool is attached, a center shaft having a first axis extending in a fore-and-aft direction, a first supporting part supporting the center shaft rotatably relative to the rear machine body around the first axis, a coupling shaft having a second axis extending in a vertical direction and connected to the front machine body, and a second supporting part supporting the center shaft rotatably relative to the coupling shaft relative to the second axis. The first supporting part includes a first spherical plain bearing, and the first spherical plain bearing includes a first inner wheel including a convex curved sliding surface and provided on an outer circumferential surface of the center shaft, and a first outer wheel including a concave curved sliding surface and provided on the rear machine body.

Multifunction baffles and work equipment transmissions containing multifunction baffles are provided. In various embodiments, the work equipment transmission includes a gearbox housing having an outlet port, a sump retaining a lubricant reservoir, and a first gear rotatably mounted in the gearbox housing such that a portion of the first gear is located below an upper surface of the lubricant reservoir. A multifunction baffle, which is installed within the gearbox housing, includes a circumferential shroud wall and an integrated suction tube. The integrated suction tube includes, in turn, a suction tube body integrally formed with the circumferential shroud wall, an inlet end portion in fluid communication with the lubricant reservoir, an outlet end portion in fluid communication with the outlet port, and a lubricant flow passage within the suction tube body and through which the lubricant is drawn from the lubricant reservoir.

A wheel loader configured to reduce a sudden change in vehicle speed caused by an erroneous determination of a raising operation of a lift arm is provided. A wheel loader 1 includes an engine 3, a variable displacement type HST pump 41, a variable displacement type HST motor 42 coupled to the HST pump 41 in a closed circuit, a hydraulic pump for working device 43, a forward/reverse selector switch 62 for switching a forward movement and a backward movement of a vehicle body, a depression amount sensor 610 that detects a depression amount of an accelerator pedal 61, a pressure sensor 73 that detects a discharge pressure Pa of the hydraulic pump for working device 43, and a controller 5. The controller 5 determines whether a specific condition to identify an upward movement of a lift arm 21 during a forward travel of the vehicle body based on a forward/reverse switching signal, the depression amount of the accelerator pedal 61, and the discharge pressure Pa detected by the pressure sensor 73. When the specific condition is satisfied, the controller 5 controls a displacement volume of the HST motor 42 according to an increase of the discharge pressure Pa, so as to limit the vehicle speed.

A transmission includes an input shaft, an output shaft, a first planetary gear mechanism, a second planetary gear mechanism, and a first variable device. The first planetary gear mechanism includes a first carrier connected to the input shaft, a first planetary gear connected to the first carrier, a first sun gear connected to the first planetary gear, and a ring gear connected to the first planetary gear. The second planetary gear mechanism includes a second sun gear connected to the first carrier, a second planetary gear connected to the second sun gear, and a second ring gear connected to the second planetary gear and connected to the first ring gear. The first variable device is connected to the first ring gear and the second ring gear to continuously change a speed ratio of the output shaft to the input shaft.

A drive assembly for a work vehicle includes a drive housing, a drive shaft rotatable about a drive axis, an inner hub rotationally fixed to the drive shaft, and a planetary gear set coupled to the drive shaft and configured to selectively rotate an output element. The drive assembly also includes a clutch arrangement having a clutch ring configured to selectively engage the planetary gear set. The clutch arrangement further includes a guide assembly mounted on the clutch ring and configured to selectively interact with the planetary gear set to effect disengagement of the clutch ring from the planetary gear set. A clutch actuation assembly is configured to effect movement of the clutch arrangement along the drive axis to engage the planetary gear set, and a guide actuation assembly is configured to operate the guide assembly to interact with the planetary gear set.