Train wheel principle and construction is how?

Traction motor rotation drives the gear box, drives the axle box, axle box drives the shaft, and ultimately the traction force will be transmitted to the wheels on the traditional fast train is the use of the interaction between the wheels and rails to solve the three major problems of support, guidance and drive.

The magnetic levitation train but the use of electromagnetic field is unique "same sex repulsion, opposites attract" interaction, to realize the locomotive and the track between the floating, constraints and drive, so as to realize the locomotive close to the road surface, but also non-contact high-speed flight.

The working principle of the internal combustion locomotive is: the internal combustion engine as the prime mover, through the transmission device to drive the wheels of the locomotive. Depending on the type of internal combustion engine on the locomotive, it can be categorized into diesel locomotives and gas turbine locomotives.

The development of gas turbine locomotives lags behind that of diesel locomotives due to their lower efficiency than that of diesel locomotives as well as the high cost of high-temperature-resistant materials and high noise. In China, the concept of internal combustion locomotives customarily refers to diesel...?

Expanded Information:

Wheel Rolling Mills are the most common type of wheel rolling mill. p>The wheel mill is the first hydraulic press to the billet press molding, and then in the wheel mill on the expansion of rolling spokes and rolled out the rim and tread, and finally in the bending plate hydraulic press on the bending spokes and punching, the process of steam locomotives with a moving wheel, due to the complex structure, diameter (some greater than 2m), not easy to roll, so the moving wheel are used to roll the wheel hoop in the casting of the core of the wheel combined into.

1853, 1854 Britain made the first hoop mill, is made of a roughing mill (axial radial rolling ring mill) and a finishing mill (radial rolling ring mill).

Baidu Encyclopedia - Train Wheel and Hoop Rolling