Railway Industry

In railways, there is a wide range of gears and gear equipments used in different railway applications. Here, some of the gear related applications (railway machineries/equipments) have been mentioned. For accomplishing variety of applications related to railways, some specialized gears and gear boxes are brought into use. These all applications are of specific nature, like machines used by railways for different safety measures, railway signaling.

The Buchli-drive
In Buchli drive, there is one individual motor in each floating axle. For accommodating each of these two individual motor, there are sprung locomotive sprung. The weight of each of the motor doesn't have any connection with the driving wheels. These two motors are lay opened to the movement of the rails. Now a days, the use of the drive has been reduced drastically, but once up on a time, this drive was used very much.

Construction
The gear-wheels of the gear is placed inside the locomotive box with full safety. Two geared levers and two dome poles are liable for connection the gear wheel to the spring less driving wheel. The direction of moving of the driving wheel towards the gear wheel is in vertical form and the internal mechanism is responsible for it. Spherical implementation is brought in the taps of the driving wheel and in the ends of the tooth-swing. This spherical implementation assist in keeping the dome poles in leaning position to the wheel-plain.


Standard design
In between the wheel disks of the driving wheels, the engine framework lies along with the wheel set bearing. The auxiliary framework in which the gear wheel is housed, present outside the driving wheels and there is a surrounded protective casing present all around of the gear wheel. This protective casing protects the gear wheel. In locomotive motor, each of the gear wheel is propelled by an individual motor and this motor is placed above the gear wheel in the alternative box.

The appearance of the locomotives is not identical on both sides of the central line of the Buchli-drive. From one side, the wheel stars of the drive wheels are covered by the wheel cover box of the gear wheels, and from the other side, these are quite visible.

Design with Outside Frame
Outside the wheel disks of the driving wheels, the engine framework with the driving wheel housing is present. In the locomotive cabinet, the driving wheel is surrounded by a quill camped. On this locomotive cabinet the gear wheels are mounted.

Design of Group Drive
In between the floating axle, the motor is placed. The gear wheels of the neighboring axes can be driven by either by a common pinion or by a pinion on both engine wave ends.

Max. Speed 60km/h. Engine
This type of engines consist six-incline cylinders with mechanical changeable speed governor. The transmission process is automated hydraulic one and twin turbine converters are present, which assist in the transmission process. In these engines, single driven axles are present. These axles contain axle-mounted bevel gear drives with single stage reductions.

The DC Traction Motor
The traditional DC electric motors which are used to drive the trains and locomotives, are of simple type of machines. These DC Tractor motors consist a Case Containing, the fixed electric part i.e. a Stator, and a dynamic electric part, i.e. Rotor. The rotor is always called as an Armature. When the rotor starts to turn, it also turns the pinion. The turning pinion drives a gearwheel. When the gearwheel is driven by the pinion, eventually the axle also start to move along with the wheels of the train, because the gearwheel is meshed onto the axle.

Quill Motor Drive
In railway, where the hollow shaft is required to place round the driving axle, the quill drive is used. In such arrangement, rather than driving the axle, the motor drives the quill. With one end, to one of the two wheels, the quill is attached. Rubber bushed assist in linking the quill with one of the two wheels. At the other end, the quill is attached to a gearwheel by the similar fashion. The most important advantage of this drive is that the weight of the motor drive is carried in the bogie frame. For this thing, quill motor drive is also called as frame mounted motor. Generally, the entire weight of motors is carried-on by the axles directly. The following figure is depicting the configuration of a traction motor with quill drive.

Monomotor Bogie
In this application of railways, there is only one motor and both the axles are driven by this single motor. This monomotor bogie has much popularity in France rather than India. Initially, this bogie was used for the rubber tyres train. In the middle part of the bogie, the monomotor is mounted longitudinally. This monomotor has several gearboxes, and with the help of these gearboxes, it drives all the axles. The functioning process is like the road-vehicle motor. Due to the operation of the rubber tyre round curves, the differential gears have to compensate. The monomotor bogie requires a special type of bogie frame, so that the motor can be accommodated into it.