Specializing in the production of flat head bucket shaft, the specification is 100 * (310-880) mm

  Excavator bucket shaft diameter 100mm

100 * 250	100*270	100*310	100*320	100*330
100*340	100*350	100*360	100*370	100*380
100*390	100*380	100*400	100*410	100*420
100*500	100*510	100*520	100*560	100*580
100*610	100*620	100*630	100*640	100*660
100*710	100*720	100*750	100*760	100*780

45# steel has good comprehensive mechanical properties after quenching, low-temperature tempering and high-temperature tempering
The steel has good hardenability, good cutting performance and high mechanical properties such as strength and impact toughness after heat treatment
It is a common material for connecting rod and pin shaft in high-voltage switch industry
When nickel and chromium are used together, the hardenability of steel can be significantly enhanced
At the same time, nickel has a good strengthening effect on ferrite, so the steel can have high impact toughness
Therefore, low alloy structural steel with chromium nickel as the main alloy element is mainly used as parts with large section, high load and impact, especially parts with impact load suitable for working at low temperature
Low carbon steel, alloy steel and general cast iron can be carburized
According to the different alloy elements of various steels, the surface hardness value is also different after carburization, which can make the workpiece have high wear resistance and maintain high strength and toughness at the heart

  The wear process of bucket shaft is mainly divided into running in stage, abrasive wear stage and bonding wear stage
The first stage: in the running in stage of the bucket shaft sleeve, an appropriate amount of grease should be added
Too much or too little pressure injection will affect the establishment of the balance roughness of the bucket shaft, and then affect the service life of the bucket shaft; The second stage: the working environment of the excavator is dusty and dusty, while the structure of the bucket shaft sleeve of the excavator is simple, and the axial and radial clearances are relatively large
Abrasive particles such as sand, stone and soil are very easy to enter the contact area of the bucket shaft hole, scratch the surface of the parts and form abrasive wear; The third stage: after a long period of wear, the hardening layer begins to fall off, and the lubrication effect decreases
The long-term heavy load causes a large tangential force, which finally breaks the adsorption film, and the bonding phenomenon occurs in the direct contact of the worn new surface
The appearance of bonding wear marks the end of the service life of the bucket shaft

  There are many hinge points on the working device of the excavator
During operation, the bucket shaft and shaft sleeve rotate relatively and transfer load is large
The reasonable selection of the clearance between the bucket shaft and shaft sleeve directly affects the reliability of the excavator
If the fit clearance is too small, a stable lubricating oil film cannot be formed, resulting in direct contact between the shaft and the shaft sleeve, causing heating and wear, and even dry grinding, locking and fracture; If the clearance between shaft and shaft sleeve is too large, the contact stress between shaft and shaft sleeve will increase, which will affect the service life of shaft and shaft sleeve

  The excavator bucket shaft produced by our company has high hardness and long service life
You should pay attention to the above points during installation and use, which will prolong its service life and reduce loss
The company specializes in producing excavator accessories www
lqknjx
com Cn excavator bearing, shaft sleeve and bucket shaft www
lqknjx
com Cn / HTML / product / douzhou / Douer, malatou, etc
are widely used in petroleum, metallurgy, mining engineering machinery and other industries
If you need any advice, please call manager Wang at 13153810108