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The characteristics of the engineering machinery running in period
2015-01-09 15:22
The characteristics of the engineering machinery running in period
Engineering machinery factory, general provisions about 60 hours of period, this is the factory according to the technical characteristics and regulation of engineering machinery use early. Period is to guarantee the normal operation of engineering machinery, reduce the failure rate, and prolong the service life of important link. The characteristics of the engineering machinery period specific as follows:
1. Wear faster
Due to the new machine parts processing, assembly and adjustment, the influence of such factors as the friction surface is rough, cooperate with the surface contact area is lesser, uneven surface pressure condition. Machine in the process of running, concave and convex part chimeric friction each other on the surface of the parts, grinding of metal debris fell down, and as an abrasive, continue to participate in friction, accelerate the abrasion on the surface of the parts with more. As a result, the running-in period to the wear and tear parts, wear faster. At this time, if the overload operation, may cause the damage of the parts, early failure.
2. Poor lubrication.
As a result of the new assembly parts fit clearance is small, and due to reasons such as assembly, it is difficult to guarantee the uniformity of fit clearance, lubricating oil (grease) in less friction surface uniform oil film formation, to prevent wear and tear. Reducing lubrication performance, causing the early abnormal wear and tear parts, precision of friction surface scratch or bite phenomenon, lead to failure.
3. The dense
The new processing and assembling parts, geometry shape and dimension deviation exist. At the beginning of the use, due to alternating load such as shock, vibration, and the influence of factors such as heat, deformation, and the wear too fast, easy to make the original loose fastening parts produced.
4. The leakage phenomenon happened
Because of loose parts of the machine, vibration and heat, the effect of sealing face of the machine and the pipe joint, there will be a leakage phenomenon; Some defects such as casting, machining, assembly and debugging is hard to find, but due to the vibration and impact in the process of operation, this kind of defects are exposed, show the leakage (permeability) oil (water) to leakage phenomenon.
5. Error of using
Owing to lack of understanding of the structure of the machine, the performance (especially the new operator), and easy fault caused by error, and even cause mechanical accident.
Engineering machinery factory, general provisions about 60 hours of period, this is the factory according to the technical characteristics and regulation of engineering machinery use early. Period is to guarantee the normal operation of engineering machinery, reduce the failure rate, and prolong the service life of important link. The characteristics of the engineering machinery period specific as follows:
1. Wear faster
Due to the new machine parts processing, assembly and adjustment, the influence of such factors as the friction surface is rough, cooperate with the surface contact area is lesser, uneven surface pressure condition. Machine in the process of running, concave and convex part chimeric friction each other on the surface of the parts, grinding of metal debris fell down, and as an abrasive, continue to participate in friction, accelerate the abrasion on the surface of the parts with more. As a result, the running-in period to the wear and tear parts, wear faster. At this time, if the overload operation, may cause the damage of the parts, early failure.
2. Poor lubrication.
As a result of the new assembly parts fit clearance is small, and due to reasons such as assembly, it is difficult to guarantee the uniformity of fit clearance, lubricating oil (grease) in less friction surface uniform oil film formation, to prevent wear and tear. Reducing lubrication performance, causing the early abnormal wear and tear parts, precision of friction surface scratch or bite phenomenon, lead to failure.
3. The dense
The new processing and assembling parts, geometry shape and dimension deviation exist. At the beginning of the use, due to alternating load such as shock, vibration, and the influence of factors such as heat, deformation, and the wear too fast, easy to make the original loose fastening parts produced.
4. The leakage phenomenon happened
Because of loose parts of the machine, vibration and heat, the effect of sealing face of the machine and the pipe joint, there will be a leakage phenomenon; Some defects such as casting, machining, assembly and debugging is hard to find, but due to the vibration and impact in the process of operation, this kind of defects are exposed, show the leakage (permeability) oil (water) to leakage phenomenon.
5. Error of using
Owing to lack of understanding of the structure of the machine, the performance (especially the new operator), and easy fault caused by error, and even cause mechanical accident.
