Application:
The crankshaft is used to convert the linear motion of the piston into rotational motion and connect to the transmission system to transmit power. The main application scenarios include
The crankshaft is used in the internal combustion engine to convert the downstream motion of the piston into rotational motion, thereby driving the rotating parts of the engine, such as engine traction, wheels, etc.
Industrial machinery:
Many industrial equipment also use crankshafts to convert piston motion into rotational force, such as generators, pumps and generators.
Aircraft engines:
Crankshafts are also used in some aircraft engines, similar to automobile engines, to convert linear motion into rotational output.
Ships and heavy machinery:
In some large-scale power ship engines and heavy machinery equipment, the crankshaft is the core and efficient component of power transmission, ensuring the stable and stable operation of the engine.
Processing technology:
The manufacturing of crankshafts requires extremely high precision and strength, and the following processing technologies are required:
The manufacturing of crankshafts generally adopts forging technology, because forging can increase the density and strength of the material, making the crankshaft relevant and fatigue-resistant. High-strength materials are usually used for forging.
Turning:
The crankshaft is turned on a lathe to form the basic shape of the vertical shaft, and further processed into its key grooves, keyways, bearing seats and other parts.
Grinding:
The surface of the crankshaft is faceted, especially the bearing contact surface and the precision shaft part, to improve its surface finish and dimensional accuracy.
Heat treatment:
The crankshaft will be heat treated (such as quenching, tempering, etc.) during the manufacturing process to improve its hardness and wear resistance, and ensure its service life under high-load working conditions.
Balancing and testing:
The crankshaft needs to be balanced to ensure that there is no unbalanced force during rotation, which would cause excessive vibration. In addition, the crankshaft chromosome undergoes a series of quality tests, such as defect detection (leads, X-rays), etc., to ensure that there are no defects inside.