The role of the crankshaft torsional damper, bearings, and flywheel.

The function of the torsional damper is to absorb the energy of the crankshaft's torsional vibrations, reduce torsional vibrations, and prevent severe resonance and its serious consequences.

2023-11-22

What is the crankshaft made of?

The crankshaft mainly consists of the front end (also known as the free end), connecting rod journal, main journal, crank, balance weight, and the rear flange of the crankshaft (also known as the power output end). The front end of the crankshaft is equipped with a timing gear, and the rear end is fitted with a flywheel (some engines also have balance weights).

2023-10-24

Motorcycle engine heart - crankshaft

Motorcycles, as a daily means of transportation for modern people, have been familiar to us for a long time. In ancient times, people used horses as the power for vehicles, so ancient vehicles were called horse-drawn carriages.

2023-09-28

The wear of the front and rear oil seal necks on the engine crankshaft: when the radial runout tolerance exceeds 0.06mm, it should be addressed.

① Inspection method for crankshaft journal wear: The inspection of crankshaft journal wear mainly involves measuring the roundness and cylindricity deviation of the journal using an external micrometer.

2023-08-31

Why are rolling bearings not used for engine crankshafts, and why are sliding bearings used instead?

Nowadays, society is developing rapidly, and technology is constantly advancing. The most evident manifestation of this is probably the gradual popularization of automobiles!

2023-07-25

What is the function of the crankcase, and what is a crankcase?

The engine of a car doesn't need much introduction; everyone knows what it is, right? What is the engine made up of? Do you understand the function of each part?

2023-06-21

Why is forced ventilation of the crankshaft necessary? What are the benefits of forced ventilation for the crankcase?

When the engine is working, combustion occurs with the high-pressure combustible mixture inside, and some gas will leak into the crankcase through the gaps between the piston assembly and the cylinder.

2023-05-09

Why is forced ventilation of the crankshaft necessary? What are the benefits of forced ventilation for the crankcase?

When the engine is working, combustion occurs with the high-pressure combustible mixture inside, and some gas will leak into the crankcase through the gaps between the piston assembly and the cylinder.

2023-04-19

How does the car engine crankshaft dissipate heat when it frequently rubs?

There are many internal parts of the engine, and many of these parts cannot directly contact the engine's cooling system, so the heat dissipation issue of the internal parts relies on oil.

2023-03-16

The crankshaft is the main rotating component of the engine. After being connected to the connecting rod, it can convert the up and down (reciprocating) motion of the connecting rod into circular (rotational) motion. It is an important component of the engine, made from carbon structural steel or ductile iron, with two important parts: the main journal and the connecting rod journal (among others). The main journal is mounted on the cylinder block, while the connecting rod journal connects to the big end hole of the connecting rod, and the small end hole of the connecting rod connects to the piston in the cylinder, forming a typical crank-slider mechanism.

The crankshaft is the main rotating component of the engine. After being connected to the connecting rod, it can convert the up and down (reciprocating) motion of the connecting rod into circular (rotational) motion.

2023-01-04