PISTON CONNECTING ROD: PURPOSE, DESIGN, MAIN MALFUNCTIONS
The piston rod is an element of the crank mechanism, due to which energy is transferred to the crankshaft when the air-
fuel mixture is ignited. It is a key detail, without which it is impossible to convert reciprocating movements into circular
ones.
Consider how this part is arranged, what kind of malfunctions are, as well as repair options.
The connecting rod works on the principle of pedals in a bicycle, only the
piston rod in cylinder plays the role of the legs in the engine. Depending on the
modification of the motor, the crank mechanism has as many connecting rods as there are cylinders in the engine.
Rod locking pneumatic cylinders, such as Parker's P1F Series of ISO cylinders, have been designed to hold
loads safely in position in a situation where the compressed air supply fails. The rod locking feature is a mechanical
function provided by a cartridge through which the
piston rod passes
and is mounted transversally in the rod lock unit of the cylinder.
Automotive metal stamping is a $40 billion industry today, employing more than 115,000 metal stampers at more than
700 metal stamping companies and automotive stamping plants in the United States. Sheet metal sub-assemblies have become
a critical peripheral of the automotive industry,
stamping parts and
sheet metal components for multiple plants and varied products.
Within a typical plant, stamping presses are turning out several automotive components daily, from body panels and
chassis to brake and lighting parts. Those presses likely include both hydraulic and servo presses, depending on the
requirements of the job.
And because of the range of metal that can be successfully formed by traditional stamping presses, allowing
manufacturers to create high-quality metal parts at affordable prices, those machines will likely live on the plant
floor for a long time to come.
The
car camshaft uses lobes (called cams) that push against the
valves to open them as the camshaft rotates; springs on the valves return them to their closed position. This is a critical
job, and can have a great impact on an engine's performance at different speeds.
The key parts of any camshaft are the lobes. As the camshaft spins, the lobes open and close the intake and exhaust
valves in time with the motion of the piston. It turns out that there is a direct relationship between the shape of the cam
lobes and the way the engine performs in different speed ranges.
In automotive and truck applications,
forging parts are commonly
found at points of shock and stress. Cars and trucks may contain more than 250 forgings, most of which are produced from
carbon or alloy steel. Forged engine and powertrain components include connecting rods, crankshafts, transmission shafts and
gears, differential gears, drive shafts, clutch hubs, and universal joint yokes and crosses. Forged camshafts, pinions,
gears, and rocker arms offer ease of selective hardening as well as strength. Wheel spindles, kingpins, axle beams and
shafts, torsion bars, ball studs, idler arms, pitman arms, steering arms, and linkages for passenger cars, buses, and trucks
typify applications requiring extra strength and toughness.