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Connecting rod and coupling rods attached to a small locomotive driving wheel. In general, all railroad vehicles have spring suspension; without springs, irregularities in the track could lift wheels off the rail and cause impact damage to both rails and vehicles. Driving wheels are typically mounted so that they have around 1 inch (2.5 cm) of ...
Connecting rod / Main rod Steel arm that converts the reciprocating motion of the piston into a rotary motion of the driving wheels. The connection between piston and main rod is a crosshead, which slides on a horizontal bar behind the cylinder. [2] [5] [3]: 55 Piston rod Connects the piston to the cross-head. [2] [3]: 61 Piston
On a conventional, non-articulated locomotive, the driving wheels are all coupled together with side rods (also known as coupling rods); normally one pair is directly driven by the main rod (or connecting rod) which is connected to the end of the piston rod; power is transmitted to the others through the side rods. [2] [3] [4]
The coupling rod between those axles was 'triangular', with an additional bearing mounted on its top edge, taking the thrust of the jackshaft drive rod. Unlike most connecting rods, this allows it to be mounted in the same plane as the coupling rod bearings. This reduces the overhung lengths of the crankpins and their bending loads.
The heavy central V coupling rod and closely set paired motors of the E.330 were replaced by two motors set either side of the transformer and control gear, and with a lighter rod drive in order to reduce Hammer blow, using lighter rods and a pair of jackshafts set beyond the coupled wheels. Placing the jackshafts at axle level reduced the ...
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The eccentric crank (UK: return crank) (1) is rigidly attached to the con-rod pin connected to the main drive wheel. Note that this is the only suitable attachment point on any of the drive wheels that is not fouled by the passage of the coupling rod or the connecting rod. The eccentric crank is of a length such that the pin attachment to the ...
The very famous example is the joining of piston rod's extension with the connecting rod in the cross head assembly. Advantages: Quick assembly and disassembly is possible; It can take tensile as well as compressive force. Application: Joint between piston rod and cross head of a steam engine; Joint between valve rod and its steam