An axle of an industrial vehicle, in which a parking brake can be maintained easily. The parking brake is arranged adjacent to a power transmission device outside an axle housing. The parking brake includes a brake housing, a brake shaft supported rotatably around the axis of the brake housing, a brake gear attached to the brake shaft and meshed with a transmission gear, first brake plates attached to the brake shaft, second brake plates attached to the brake housing and alternately arranged with the first brake plates, and a brake piston arranged so as to move toward and away from the plates and in the brake housing for bringing the plates into pressure contact with each other.

An electrical bridge driving system for a vehicle includes: an electric motor; a transmission shaft connected for co-rotation with the electric motor; a first gear provided on the transmission shaft; a second gear engaged with the first gear; a planetary gear apparatus, wherein the second gear is connected for co-rotation to an input end of the planetary gear apparatus; and a differential mechanism, wherein an output end of the planetary gear apparatus is connected for co-rotation to an input end of the differential mechanism. The second gear, the planetary gear apparatus, and the differential mechanism are coaxial. The electrical bridge driving system can have a larger transmission ratio in a compact space.

The present disclosure discloses a dual-electric-motor driving system, wherein the dual-electric-motor driving system includes a first electric motor, a second electric motor, two sets of gear reduction mechanisms, a differential-lock mechanism and a parking mechanism; the first electric motor and the second electric motor are arranged coaxially, first-stage pinions of the two sets of gear reduction mechanisms are provided respectively on an output shaft of the first electric motor and an output shaft of the second electric motor, and the differential-lock mechanism is provided at tips of the output shaft of the first electric motor and the output shaft of the second electric motor; the differential-lock mechanism includes a movable fluted disc, a fixed fluted disc and a fixed armature.

An electrical bridge driving system for a vehicle includes: an electric motor; a transmission shaft connected for co-rotation with the electric motor; a first gear provided on the transmission shaft; a second gear engaged with the first gear; a planetary gear apparatus, wherein the second gear is connected for co-rotation to an input end of the planetary gear apparatus; and a differential mechanism, wherein an output end of the planetary gear apparatus is connected for co-rotation to an input end of the differential mechanism. The second gear, the planetary gear apparatus, and the differential mechanism are coaxial. The electrical bridge driving system can have a larger transmission ratio in a compact space.

A securing device for securing an electric vehicle in a stationary position. The securing device having a transmission locking device and an axle locking device. The transmission locking device has a transmission locking drive with a transmission locking shaft for driving a transmission lock between a transmission locking position and a transmission release position. The axle locking device has an axle locking drive with an axle locking shaft for driving an axle lock between an axle locking position and an axle release position. The transmission locking shaft and the axle locking shaft are formed independently of one another.

A vehicle parking apparatus displaced across first and second cases joined together through joined surfaces. The vehicle parking apparatus includes a rotation member supported rotatably at the first case to rotate in accordance with parking activation command and parking release command, a parking rod extended from the first case to the second case and including a base portion supported rotatably at the rotation member to move to first direction and second direction by rotation of the rotation member, a parking pole supported swingably at the second case and brought into contact with a top portion of the parking rod to engage with and disengage from a parking gear in accordance with movement of the parking rod in the first direction and the second direction, and a plate shaped stay fixed to the first case and including a notch into which the parking rod is inserted.

A vehicle parking mechanism according to the disclosure is a mechanism provided in a vehicle power transmission device that transmits power output from an electric motor to left and right axles and through two planetary gear mechanisms and a differential device, wherein, in a carrier of one of the two planetary gear mechanisms and, a piston engaged and disengaged with and from a carrier of the other is slidably provided, wherein the piston is engaged with the carrier of the other planetary gear mechanism when a vehicle is stopped, and wherein the piston is disengaged from the carrier of the other planetary gear mechanism other than when the vehicle is stopped.

A vehicle parking apparatus displaced across first and second cases joined together through joined surfaces. The vehicle parking apparatus includes a rotation member supported rotatably at the first case to rotate in accordance with parking activation command and parking release command, a parking rod extended from the first case to the second case and including a base portion supported rotatably at the rotation member to move to first direction and second direction by rotation of the rotation member, a parking pole supported swingably at the second case and brought into contact with a top portion of the parking rod to engage with and disengage from a parking gear in accordance with movement of the parking rod in the first direction and the second direction, and a plate shaped stay fixed to the first case and including a notch into which the parking rod is inserted.

In a support structure of a power system, the power system includes: an electrical motor; a transmission; and a housing supported by a frame member of the vehicle via a mount arm. The transmission includes a first planetary mechanism having first to third rotating elements, the electrical motor is connected to the first rotating element of the first planetary mechanism, the left and right wheels are connected to the second rotating element of the first planetary mechanism, and the housing is connected to the third rotating element of the first planetary mechanism. A fastening member that fastens the housing and the mount arm is disposed so as to overlap in the axial direction with a connecting portion that connects the third rotating element of the first planetary mechanism and the housing.

A securing device for securing an electric vehicle in a stationary position. The securing device having a transmission locking device and an axle locking device. The transmission locking device has a transmission locking drive with a transmission locking shaft for driving a transmission lock between a transmission locking position and a transmission release position. The axle locking device has an axle locking drive with an axle locking shaft for driving an axle lock between an axle locking position and an axle release position. The transmission locking shaft and the axle locking shaft are formed independently of one another.