Bulldozer is a kind of earthmoving machinery, and its working mode mainly includes two modes: bulldozer shovel and bulldozer. The floating oil seal is mainly used in the terminal of the bulldozer walking system. When the relative rotation movement occurs between the sprocket and the outer housing (fixed on the machine frame), the floating oil seal plays a vital role in it. In the process of operation, the O-ring of the floating oil seal is deformed by axial compression to produce a grinding force at the sealing end of the floating seal ring, and stores elastic energy. With the wear of the seal end face, the bright band gradually moves in, and this elastic energy is gradually released, so that the sealing surface can maintain a good fit and play an axial compensation role, and the close contact of the sealing surface is finally achieved.”
Bulldozer is a kind of earthmoving machinery, and its working mode mainly includes two modes: bulldozer shovel and bulldozer. The floating oil seal is mainly used in the terminal of the bulldozer walking system. When the relative rotation movement occurs between the sprocket and the outer housing (fixed on the machine frame), the floating oil seal plays a vital role in it. During operation, the O-ring of the floating oil seal is deformed by axial compression to produce a grinding force at the sealing end of the floating oil seal ring, and stores elastic energy. With the wear of the seal end face, the bright band gradually moves inward, and this elastic energy is gradually released, making the sealing surface maintain a good fit and play an axial compensation role, and the Z sealing surface is finally in close contact.
Due to the harsh working conditions of the bulldozer, especially the wetland bulldozer working in the coal river and sand, JI may have sediment mixed into the transmission system leading to more serious transmission parts damage, so we put forward the following suggestions for bulldozer users for reference: When installing the floating oil seal, it is necessary to ensure that the diameter jump of the floating oil seal relative to the gear hub meets the process requirements, and the size of the part and the installation tolerance are clear. If there is an extension sleeve installed, it should meet its own coaxial degree to meet the standard requirements. Additional regular maintenance of the whole machine and timely cleaning of attached sediment can also improve the sealing stability of the floating oil seal in the operation of the bulldozer.