MAXUS The main role of the connecting rod bearing .
transfer power : The main role of connecting rod bearing is to convert the reciprocating motion of piston to the rotating motion of crankshaft, so as to provide power for the car.
supporting piston : connecting rod bearing supports the piston to move up and down in the cylinder to ensure that the piston works in the correct position.
reduce friction : the lubricating oil in the bearing can reduce the friction between the piston and the crankshaft, reduce the wear and energy consumption of the engine.
Shock absorption and shock absorption : during the operation of the engine, the connecting rod bearing can absorb part of the impact force and reduce the damage to other parts of the engine.
Other roles of connecting rod bearings
dustproof and sealing : in addition to the connecting rod bearing itself can be dustproof and sealed, it is often combined with the seal to achieve the effect of sealing.
axial positioning : axial positioning of the bearing outer ring to ensure that the bearing will not move in the axial direction.
Improve performance and efficiency : connecting rod bearings can reduce the friction and wear inside the engine, thereby improving the operating efficiency and stability of the engine.
The main role of connecting rod bearings is to reduce the wear of the crank pin, but also to reduce the friction and vibration of the connecting rod. Connecting rod bearing is a part connected with the crank pin to protect the normal operation of the engine by reducing the wear of the crank pin. In addition, it can effectively reduce the friction and vibration of the connecting rod, thereby protecting the connecting rod from damage and ensuring the stability and durability of the engine.
The reasons for the damage of connecting rod bearings mainly include the following points:
material fatigue : long-term use and load will lead to material fatigue, which will lead to small cracks, gradually extend to the surface, and eventually lead to bearing damage.
poor lubrication : insufficient lubrication or lubricating oil deterioration, oil passage blockage, etc., will lead to poor lubrication, and then lead to connecting rod bearing burning, abnormal sound.
pollution : During the installation process is not clean or foreign matter enters the use environment, such as dust, impurities, etc., will lead to bearing surface wear, affect its normal work.
installation problem : Improper installation, such as not correctly tapped on the correct ring, or installation into the foreign body, will lead to bearing damage.
improper handling : including improper lubrication cycle, poor sealing, etc., will accelerate the damage of the bearing.
In order to prevent the damage of the connecting rod bearing, the lubrication condition should be checked regularly to ensure the use of appropriate lubricating oil and the correct lubrication cycle; Keep the installation environment clean to prevent foreign matter from entering; And the correct installation and maintenance of bearings to ensure their normal work .
What are the common injuries of piston connecting rod?
2. Preventive measures for damage of piston connecting rod
Choose high strength materials
In order to improve the bearing capacity of piston connecting rod, high strength materials should be used to make connecting rod. At the same time, the performance indicators such as fatigue strength and impact toughness should also be considered in the selection of materials to ensure that the connecting rod has sufficient strength and toughness in the harsh working environment.
Optimal structural design
Reasonable structure design can effectively reduce the stress concentration degree of the connecting rod, thus improving its fatigue strength. For example, adopting the arc transition in the big head and small head transition area, increasing the cross section size of the connecting rod body and other measures can effectively improve the bearing capacity of the connecting rod.
Enhanced lubrication and cooling
Good lubrication and cooling conditions can effectively reduce the wear rate of bearings and bushings and extend their service life. Therefore, the adequate supply of lubricating oil and coolant should be ensured during the operation of the internal combustion engine, and the lubricating oil road and waterway should be replaced and cleaned regularly to keep it clean and unblocked.
Regular inspection and maintenance
Regular inspection and maintenance is an important measure to prevent the damage of piston connecting rod. Periodically, you can discover and handle potential faults in a timely manner to prevent faults from expanding. At the same time, during the maintenance process, the connecting rod should also be adjusted and fastened as necessary to ensure that it is in good working condition.
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