Flange wheel of ground rail car
2020-11-19
At present, the ground rail car is the first choice for the transportation of heavy objects in the workshop. Its power modes are diversified, including low-voltage rail power supply. This series of AC power is reduced to 36V and then connected to two rails for power supply, but due to the large load , The wheels used in electric flat cars are mostly cast steel wheels, so they will be energized during contact with the track, which will damage the electrical components installed on the car body in severe cases.
In order to solve this problem, the insulated wheels of low-voltage power supply rail trucks are characterized by including wheel axles, wheel pieces, bearings and ring gears. One side of the wheel axle is provided with a backstop step, and the bearing passes through the The limit sleeve is fixed at the step of the wheel shaft, the wheel piece is fixed on the bearing and is restricted by the retaining rings arranged on both sides of the bearing. An insulating bush is arranged between the inner ring of the bearing and the wheel shaft. The contact parts of the wheel axle stop step and the limit sleeve are respectively provided with insulating pressing pieces, the ring gear is fixed on the inner side of the wheel piece by bolts, the contact part between the gear ring and the wheel piece is provided with the outer insulating pressing piece of the wheel, the bolt and the ring gear The contact part is provided with an insulating spacer. Further preferably, a dust cover is provided on the outer side of the retaining ring.
For ground rail cars, the ground step-down transformer will step down the AC 380V power supply to AC 36V two-phase, respectively connect to the two rails, and then take power through the wheels, introduce the on-board electric control box, and rectify it into DC 36V by the on-board rectifier. The DC traction motor is controlled by the DC control system to control the start, stop, forward, reverse, and speed regulation of the flat car. The rail transport vehicle can be used in applications such as linear, S-shaped track, curved track and high temperature.
In order to solve this problem, the insulated wheels of low-voltage power supply rail trucks are characterized by including wheel axles, wheel pieces, bearings and ring gears. One side of the wheel axle is provided with a backstop step, and the bearing passes through the The limit sleeve is fixed at the step of the wheel shaft, the wheel piece is fixed on the bearing and is restricted by the retaining rings arranged on both sides of the bearing. An insulating bush is arranged between the inner ring of the bearing and the wheel shaft. The contact parts of the wheel axle stop step and the limit sleeve are respectively provided with insulating pressing pieces, the ring gear is fixed on the inner side of the wheel piece by bolts, the contact part between the gear ring and the wheel piece is provided with the outer insulating pressing piece of the wheel, the bolt and the ring gear The contact part is provided with an insulating spacer. Further preferably, a dust cover is provided on the outer side of the retaining ring.
For ground rail cars, the ground step-down transformer will step down the AC 380V power supply to AC 36V two-phase, respectively connect to the two rails, and then take power through the wheels, introduce the on-board electric control box, and rectify it into DC 36V by the on-board rectifier. The DC traction motor is controlled by the DC control system to control the start, stop, forward, reverse, and speed regulation of the flat car. The rail transport vehicle can be used in applications such as linear, S-shaped track, curved track and high temperature.
