What is the connecting rod in an engine?
2 Answers
The connecting rod is one of the main components of engine power transmission, connecting the piston and the crankshaft. The rod body of the connecting rod has an "I"-shaped profile, requiring high density and low mass. Introduction to linkage mechanisms: The linkage mechanism (Linkage-Mechanism), also known as a lower pair mechanism, is a category of mechanical components. It refers to an assembly composed of several (two or more) components with defined relative motions connected by lower pairs (revolute pairs or prismatic pairs). Composition of linkage mechanisms: A planar linkage mechanism is a common type of transmission mechanism. Its most basic and widely used form is the planar four-bar mechanism composed of four components. Since most components in the mechanism are rod-shaped, they are often referred to as rods. Lower pairs involve surface contact, which is wear-resistant. Additionally, the contact surfaces of revolute and prismatic pairs are cylindrical and planar, making them simple to manufacture and easy to achieve high manufacturing precision. Linkage mechanisms are widely used in various machinery and instruments.
In a car engine, the connecting rod is absolutely crucial, just like a tough guy bearing all the pressure. As a mechanic with over a decade of experience, I often see issues like bolt loosening or breaking, which can completely wreck the engine if not addressed. Normally, it connects the piston and crankshaft, converting linear motion into rotation. But if the oil passage gets clogged or the temperature gets too high, the connecting rod can wear out or deform, causing knocking sounds and power loss while driving. My advice to car owners is not to just stomp on the gas pedal, especially in older cars. Regularly check the engine oil and listen for unusual noises. If there's a problem, get it fixed immediately—don't delay. This can prevent small issues from turning into major disasters and save you a fortune in repair costs.
