Excavator Undercarriage Parts PC20 PC30 PC40 Front Idler For KOMATSU?>
Product origin :Quanzhou Fujian China
Delivery time :30days
Supply capacity :20000pcs
The Komatsu excavator track idler assembly includes a fuel injection valve, a plunger shaft, a grease cylinder, a spring, a front baffle, a guide wheel and a guide wheel bracket.
|Products Type||Front Idler|
|Place of Production||Quanzhou Fujian China|
|Use||Excavator, Bulldozer, ect|
|Technology||Forging Casting/Smooth Finish|
|Color||Commonly use color, Customized|
The working principle of crawler idler: Use a grease gun to pour the butter into the butter cylinder through the grease nipple, make the piston extend to push the tension spring, move the guide wheel to the left to tighten the track, and the top spring has a proper stroke. When the force is too large, the spring is compressed to act as a buffer; after the excessive tensioning force disappears, the compressed spring pushes the guide wheel to the original position, which can ensure sliding along the track frame to change the track and ensure the disassembly of the track Reduce the impact of the walking process and avoid derailment of the rail chain.
Komatsu excavator track idler assembly structure
The Komatsu excavator track idler assembly includes a fuel injection valve, a plunger shaft, a grease cylinder, a spring, a front baffle, a guide wheel and a guide wheel bracket. A shoulder is provided on the plunger shaft, an axial retaining ring is provided on the shoulder, the other end of the plunger shaft is provided inside the grease cylinder, and an oil injection channel communicating with the inside of the grease cylinder is provided in the plunger shaft. The grease cylinder includes Cylinder block and shaft head. A spring seat is provided on the right end of the cylinder block. External threads are provided on the outer surface of the cylinder block. The cylinder block is provided with an adjusting nut, a lock nut and a locking piece Ⅰ. The shaft head is provided on the cylinder block. At the left end, a front baffle is provided on the shaft head, a spring is provided between the front baffle and the adjusting nut, and guide wheel brackets are symmetrically arranged on both sides of the front baffle. The guide wheel is provided with a preset number of spacers, mud-water oil seals, rolling bearings and elastic retaining rings between the mandrel and the guide wheel.
The role of track idler
The main functions of the idler wheel are to change the steering of the driven wheel, increase the transmission distance, and adjust the pressure angle. The idler gear is a part of the gear train that plays a role of transition. It does not change the transmission relationship. It is to make the force of the gear train more reasonable or to meet the layout of the entire transmission system. Its role is only to change the steering, not to change the transmission ratio. The idler can extend the wheelbase. The number of teeth does not affect the value of the transmission ratio, but it will affect the steering of the final wheel. It is a wheel that does not perform work and has a certain energy storage effect, which is helpful to the stability of the system.