The secret of Lingong excavator chassis, come and learn about it!

October 12, 2023

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Chassis is the key component of Excavator body support and walking.，It carries the weight of the whole fuselage.，The walking of the Excavator is realized under the driving of the walking driving unit.，Protect the normal operation of the Excavator under severe working conditions。

The excavator chassis comprises four wheels and a belt.，Four wheels is：Roller、Drag chain wheel、Idler tensioner assembly and drive wheel；The belt is a caterpillar。

Drive wheel

Drive wheel，Power transmission for construction machinery, excavators and Bulldozers，The drive wheel is generally directly connected to the drive motor，Transmitting power directly to the track，So that that whole chassis is driven to move forward。

Shandong Lingong driving wheel adopts aluminum die precision casting blank.，No casting defects。

High-hardenability manganese alloy cast steel for medium and small excavator，Quenching and tempering and medium frequency induction hardening，Good hardness and toughness。High-hardenability molybdenum alloy for large excavator，Further improve the strength and impact toughness。

Aluminum heat treatment is adopted、Sectional induction hardening，Advanced technology。

Roller/Carrier roller

The rollers are used to support the weight of the excavator，At the same time, in the guide rail of the track,（Track link）Or rolling on the track shoe surface，It is also used to restrain the track，Prevent lateral slippage。Allow the track to follow the wheel。

Shandong Lingong track roller/Heavy duty roller body for carrier roller，Forged and deeply hardened，Prevent deformation，Improved durability and longevity；

Full penetration weld，No welding defects，And ensure that overall strength of the wheel body.，The welding strength is greater than the material strength of the wheel body。

Polishing treatment after fine grinding of axles, etc.，Reduce the roughness，Reduce friction，Reduce temperature rise and wear of shaft sleeve，And the service life is prolonged。

Induction hardening is used、Tempering，Improving the lateral extrusion resistance of the wheel body。

Guide wheel

The guide wheel is an important component in the travel system of excavator.。The guide wheel is used to guide the movement of the track.，It goes with the tensioner.，Can keep the track at a certain tension，And soften the impact of the road as it moves forward.，Reduce the vibration of the airframe。

Shandong Lingong guide wheel is welded with high hardenability cast steel or high quality structural steel.，The weld penetration is high，No welding defects。

Medium and Small Excavators are made of high quality forged structural steel and high strength ductile iron.，Suitable for high speed and light load conditions；High hardenability cast steel for large excavator，Suitable for low speed and heavy load working condition。

Normalizing or quenching and tempering the guide wheel body，The basic strength is 25% higher than that of the traditional ductile iron material%，The elongation is 50% higher than that of the traditional nodular cast iron material%，High strength and high wear resistance。

Shoe/Chain track

The sprocket is the component that guides the forward direction of the track，The chain connects the sprockets.，O that the track can move more smoothly.。The track shoe is used to cover the entire track，Play the role of protection and support。

Shandong Lingong crawler board

Made of boron steel alloy，Excellent tensile strength and wear resistance；

Spray pressure quenching process is adopted，One-time molding，The hardenability is good，The hardness is uniform，Tensile and wear resistant，And that service life is long。