An axle assembly for a working machine is provided. The axle assembly has an axle housing comprising a central portion housing a gear, wherein the gear is configured to rotate about an axis and is configured to be partially disposed in a lubricant reservoir, and at least one arm portion extending from the central portion, with the arm portion housing at least one driveshaft. The axle assembly further includes a conduit assembly configured to direct lubricant from the central portion to the arm portion, with the conduit assembly including a lubricant catcher having an inlet disposed in an interior volume of the central portion.

A motor having a motor shaft rotatable about a motor axis; a power transmission having gears and connected to the motor shaft; a housing having a motor housing portion accommodating the motor and a gear accommodation portion accommodating the power transmission; a fluid contained in the housing; and a fluid channel through which the fluid flows, in which a reservoir storing the fluid above the motor axis is provided in the inside of the gear accommodation portion. The fluid channel includes an external supply channel for supplying the fluid from an outside of the motor to the motor, and an internal supply channel for supplying the fluid to a hollow portion of the motor shaft. The reservoir has a first supply port and a second supply port. The external supply channel is connected to a first supply port. The internal supply channel is connected to a second supply port.

A drive apparatus includes a motor having a rotor with a hollow motor shaft and a stator, a gear connected to the rotor, a housing including a motor housing accommodating the motor, and a gear housing at one side in an axial direction of the motor housing and accommodating the gear, and a passage. The gear includes a hollow gear shaft connected to one side in the axial direction of the motor shaft. The passage includes a first portion connecting the inside of the gear housing and the inside of the gear shaft, a second portion at least partially configured by the inside of the gear shaft and the inside of the motor shaft and connected to the first portion, a third portion connected to the second portion on the other side in the axial direction, and a first supply portion connected to the third portion and above the stator.

A transfer case includes a mainshaft, an oil distribution device, and a lubricating pump, with the lubricating pump having a pumpshaft offset from the axis of the mainshaft. The transfer case includes a rear housing in which the lubricating pump housing is disposed in radially offset location, where lubricating oil is drawn via suction to the pump housing from a sump at the bottom of the transfer case. The pump pressurizes the oil and delivers the oil via passageways extending between the radially offset pump and the oil distribution device, which surrounds the mainshaft. The passageways may be provided in a manifold block that is fixed to the housing. The manifold block may provide an anti-rotation feature to the oil distribution device, such that drag on the oil distribution device caused by rotation of the mainshaft is counteracted.

A gear unit includes a housing, a trough for guiding oil and reducing losses due to splashing surrounding a circumferential section of a toothing part, particularly a gear wheel, especially in the radial and axial direction, the trough including at least three parts, e.g., at least one bottom plate and two side walls, the bottom plate being screw-connected to the two side walls, the trough being fastened to the housing, the trough having an opening, particularly a channel, especially at its lowest surface area, e.g., particularly at the surface area having the greatest radial distance, in particular, during rotational movement of the gear wheel, oil being conveyed from the oil pan of the gear unit through the opening between the trough and gear wheel, especially to a position higher than the level of the oil pan, the bottom plate and the side walls being stamped bent parts.

A vehicle stalactite passive lubrication system includes a drive unit having an electric motor and a gear. A sump has a sump extension. A lubricant is collected in the sump for gravity flow into the sump extension. A stalactite member is fixed to the drive unit and is positioned above an element to be filled with a fluid, lubricated or cooled. The stalactite member is directed downwardly toward the sump with the lubricant splashed by gear rotation collected on neighboring walls and the stalactite member and directed downwardly by gravity into the sump or target element. The stalactite member includes: a drip edge oriented at an angle to a horizontal plane; and a tip defining an end of the drip edge. The angle is selected to direct the lubricant to discharge off the stalactite member at the tip as a lubricant stream into the sump or target element.

A transmission includes a housing, a plurality of components, and a cooling system. The housing has a plurality of walls that cooperate to define an interior space and a sump configured to store lubricating fluid in use of the transmission. The plurality of components are arranged in the interior space and configured to cooperatively transmit rotational power between an input shaft and an output shaft of the transmission to reduce a rotational speed of the output shaft relative to a rotational speed of the input shaft in use of the transmission. At least one of the plurality of components is supplied with lubricating fluid stored by the sump in use of the transmission. The cooling system is supported by the housing.

A gear unit to be mounted in a vehicle includes a housing for storing oil, a partition disposed inside the housing, and a helical gear. The partition defines first and second oil chambers and has a through-hole allowing the first oil chamber to communicate with the second oil chamber. The helical gear disposed inside the first oil chamber rotates during running of the vehicle and has an angled tooth that draws inner and addendum circles defining a virtual circumferential plane. The through-hole coincides with a portion of the virtual circumferential plane in a direction parallel to a central axis of the helical gear. When the helical gear rotates in conjunction with the running of the vehicle, the oil flows from the second oil chamber into the first oil chamber so that an oil level of the first oil chamber becomes higher than that of the second oil chamber.

A vehicle includes a motor, a gear mechanism connected downstream of the motor, a box that has a motor chamber that houses the motor, a gear chamber that houses the gear mechanism and lubricating oil, and an exhaust pipe. A first cooling box, in which cooling liquid that cools the motor is introduced, is configured on an outer circumference of the motor. A second cooling box, which is connected so that cooling liquid can circulate between the second cooling box and the first cooling box, is configured on an outer circumference of the box. The motor chamber is arranged at a position spaced further apart from the exhaust pipe than the gear chamber.

An electric drive assembly with oil/water dual cooling is provided that includes a motor module, a gearbox module, a water cooling module and an oil cooling module. Lubricating oil is introduced into the front and rear windings of the motor through three oil conveying passages to improve the cooling performance of the motor. Moreover, the gearbox cavity and the motor cavity do not need to be sealed, which avoids the use of high-speed oil seal of motor shaft, and thus the cost of the drive assembly is reduced and the transmission efficiency is improved. The cooling fluid of the motor cools the lubricating oil through the heat exchanger of the gearbox, thereby solving the heat dissipation problem when the gearbox of the new energy vehicle operates at high speed constantly, and thus improving the service life and reliability of the gear and bearing.