Structural Principle of Bulldozer Idler The Idler is used to support the crawler track and guide the crawler track to be wound. Its rim catches the outer edge of the track link of the crawler track to prevent it from falling off laterally. The impact force transmitted from the ground to the rack. The guide wheel is a steel plate welded structure, and its radial section is box-shaped. The guide wheel is mounted on the guide wheel shaft through a bimetal sleeve sliding bearing in the rim hole, and both ends of the shaft are fixed on the left and right brackets. The guide wheels and the left and right brackets are sealed with floating oil seals, and the floating oil seals and O-rings are pressed by the locking pins between the left and right brackets and the guide wheel shafts. Add lubricating oil into the idler cavity to ensure the lubrication and heat dissipation of the sliding bearing.
When the bolts of the walking mechanism are loose, they are easily broken or lost, causing a series of failures. The following bolts should be checked for daily maintenance: the mounting bolts of the support roller and the supporting roller, the mounting bolts of the drive wheel tooth block, the mounting bolts of the track shoe, the mounting bolts of the roller guard plate, and the mounting bolts of the diagonal brace head. Refer to the instruction manual of each model for the tightening torque of the main bolts.
Many users ignore the influence of environmental climate on the life of bulldozer idlers. It is well known that most of the construction machinery and equipment are operated in the open air. According to the different projects, the working location will also change, and the equipment is easily affected by the temperature, environment, climate and other factors of the site. If it is a machine that works on a fixed site for a long time, it is best to have a shutdown room (shed), or use a cover to reduce the damage caused by the sun and rain as much as possible. Therefore, corresponding machine protection measures should be taken according to the climatic environment.
Post time: Feb-22-2022
