China Factory Drectly Provide Track Roller Excavator Track Bottom Lower Roller
Structural arrangement: According to the power level, the tracked bulldozer has 4 to 7 supporting wheels on each side, with the lower limit for low power and the upper limit for high power. When the grounding length of the track is fixed, increasing the number of supporting wheels can make the grounding pressure uniform and reduce the rolling resistance of the track depth. However, increasing the number will inevitably reduce the diameter, thereby increasing the rolling resistance of the supporting wheels on the track. Taking these two factors into account, the diameter of the supporting wheels Dz=(1-2.0) 1: is generally taken. Each supporting wheel is evenly distributed, with an axle spacing of 1=(1.7~2.0). The distance between the last supporting wheel shaft and the driving wheel shaft is l=(2.3~2.6) 1t. The position of the front supporting wheel should ensure that the tensioning wheel is adjusted to the final limit position and the buffer spring is compressed to the maximum value without interference. There should be sufficient clearance between the top of the drive sprocket and the hub of the supporting wheel to prevent mud accumulation
