Methods and systems are provided for coupling mechanism of a wheel. The coupling mechanism of a wheel includes a screw with a threaded portion, a block with an internal threaded portion, and a coupler mechanically coupled to the screw. The coupler has a radially inner surface configured to couple with a drive shaft and a radially outer surface configured to couple with a spindle, where the screw is configured to engage the coupler with the drive shaft when actuated in a first direction and disengage the coupler from the drive shaft when actuated in a second direction, opposite the first.

Methods and systems are provided for coupling mechanism of a wheel. The coupling mechanism of a wheel includes a screw with a threaded portion, a block with an internal threaded portion, and a coupler mechanically coupled to the screw. The coupler has a radially inner surface configured to couple with a drive shaft and a radially outer surface configured to couple with a spindle, where the screw is configured to engage the coupler with the drive shaft when actuated in a first direction and disengage the coupler from the drive shaft when actuated in a second direction, opposite the first.

A removable wheel assembly and method includes a wheel hub and an axle shaft fixedly secured to the wheel hub at a proximal end and having a circumferential groove defined therein. The wheel assembly also includes a wheel rim radially spaced apart from and concentric with the wheel hub, and a locking device having an engagement end that is radially received within the circumferential groove of the axle shaft for inhibiting axial movement of the axle shaft and thereby inhibiting axial movement of the wheel hub.

A removable wheel assembly and method includes a wheel hub and an axle shaft fixedly secured to the wheel hub at a proximal end and having a circumferential groove defined therein. The wheel assembly also includes a wheel rim radially spaced apart from and concentric with the wheel hub, and a locking device having an engagement end that is radially received within the circumferential groove of the axle shaft for inhibiting axial movement of the axle shaft and thereby inhibiting axial movement of the wheel hub.

A spindle assembly of an axle assembly includes an elongate body partially forming a first cavity and a second cavity. A seal is coupled to the elongate body at a location between the first cavity and the second cavity, and the seal is configured to be in contact with an axle shaft to fluidly seal the first and second cavities from one another. A breather is coupled to the elongate body and disposed in fluid communication with the second cavity. A sleeve is also coupled to the elongate body. The sleeve includes a notch that forms at least a portion of a drainage passage through which a fluid in the second cavity may flow from an upper portion of the second cavity to a lower portion thereof.

A spindle assembly of an axle assembly includes an elongate body partially forming a first cavity and a second cavity. A seal is coupled to the elongate body at a location between the first cavity and the second cavity, and the seal is configured to be in contact with an axle shaft to fluidly seal the first and second cavities from one another. A breather is coupled to the elongate body and disposed in fluid communication with the second cavity. A sleeve is also coupled to the elongate body. The sleeve includes a notch that forms at least a portion of a drainage passage through which a fluid in the second cavity may flow from an upper portion of the second cavity to a lower portion thereof.

A spindle assembly of an axle assembly includes an elongate body partially forming a first cavity and a second cavity. A seal is coupled to the elongate body at a location between the first cavity and the second cavity, and the seal is configured to be in contact with an axle shaft to fluidly seal the first and second cavities from one another. A breather is coupled to the elongate body and disposed in fluid communication with the second cavity. A sleeve is also coupled to the elongate body. The sleeve includes a notch that forms at least a portion of a drainage passage through which a fluid in the second cavity may flow from an upper portion of the second cavity to a lower portion thereof.

A spindle assembly of an axle assembly includes an elongate body partially forming a first cavity and a second cavity. A seal is coupled to the elongate body at a location between the first cavity and the second cavity, and the seal is configured to be in contact with an axle shaft to fluidly seal the first and second cavities from one another. A breather is coupled to the elongate body and disposed in fluid communication with the second cavity. A sleeve is also coupled to the elongate body. The sleeve includes a notch that forms at least a portion of a drainage passage through which a fluid in the second cavity may flow from an upper portion of the second cavity to a lower portion thereof.

The present disclosure provides a composite powered wheel set, a train, a wheel-rail system and a train control method. The composite powered wheel set comprises two booster wheels and two support wheels mounted on a driving axle. The booster wheels are fixedly mounted on two ends of the driving axle, the support wheels are mounted on the driving axle via bearings, the moving axle is connected to a first transmission device, which is connected to a first power mechanism, and the driving axle is further connected to a train bogie via a connecting device. Booster wheels and booster rails are provided to improve anti-skid performance, so the train will not skid when running on a steep slope or under a heavy traction load. Restrictions on the railway slope, train traction load, and train speed are eliminated to a great extent, and the application scope of the wheel rails is expanded.

The present disclosure provides a composite powered wheel set, a train, a wheel-rail system and a train control method. The composite powered wheel set comprises two booster wheels and two support wheels mounted on a driving axle. The booster wheels are fixedly mounted on two ends of the driving axle, the support wheels are mounted on the driving axle via bearings, the moving axle is connected to a first transmission device, which is connected to a first power mechanism, and the driving axle is further connected to a train bogie via a connecting device. Booster wheels and booster rails are provided to improve anti-skid performance, so the train will not skid when running on a steep slope or under a heavy traction load. Restrictions on the railway slope, train traction load, and train speed are eliminated to a great extent, and the application scope of the wheel rails is expanded.