What is the cause of the oil leakage of the bulldozer track roller?
The track roller is one of the main wearing parts of the construction machinery walking mechanism, which has high requirements on its anti-fatigue damage capability. The service life of the track roller has become a key indicator to measure the design and manufacturing level of “four wheels and one belt”. So what is the cause of the oil leakage of the bulldozer supporting wheel?
Preliminary judgment of the oil leakage of the bulldozer supporting wheel has the following 4 reasons:
One is that the size or surface roughness of the axle, bushing, and axle seat is unqualified, resulting in abnormal wear of the axle and bushing, axle seat and bushing when the supporting wheel is working, forming a large amount of metal powder, which lubricates the inside of the wheel body The oil is polluted, causing the metal powder entering the sealing surface of the floating seal ring to wear the sealing surface of the floating oil seal to failure.
The second is that the strength of the wheel body and the shaft seat is insufficient, causing the internal floating seal ring to be deformed due to extrusion, causing the floating seal rubber ring to be twisted and misplaced, resulting in the failure of the floating seal ring.
The third is that the type of lubricating oil is improperly selected, which cannot meet the corresponding ambient temperature requirements. An effective oil film cannot be formed inside the wheel body, causing the lubricating oil to heat up, causing the floating oil seal rubber ring to age rapidly and lose its elasticity, and the sealing ability is reduced.
Fourth, the size design of the floating seal ring component and the floating seal groove is unreasonable or the hardness of the floating seal rubber ring is unqualified, resulting in excessive or low pressure on the sealing surface, resulting in the failure to form an oil film on the joint surface of the floating seal ring, and causing the seal to fail.
There are several reasons for the oil leakage of the bulldozer support rollers: the floating oil seal is unqualified; the product shaft sleeve is not round enough; the support shaft gloss is not enough; the gear oil is not up to standard; All of the above problems will cause oil leakage from the rollers. Therefore, in order to ensure better use of the bulldozer rollers, we need to do a good job in daily inspection and maintenance.
Post time: Dec-02-2022
