Fenomeno di abrasione delle parti del carro del bulldozer

Bulldozer is a kind of earthmoving engineering machinery that can excavate, transport and dump soil. It has a wide range of applications in open-pit mines. For example, it is used for the construction of dump, levelling of automobile dump, stacking of scattered mineral rocks, levelling of work flat and construction site, eccetera. It is not only used for auxiliary work, but also for the main mining work. Dozer Spare Parts mainly through the four wheel belt walking, complex structure, at the same time because of the large weight, resulting in large inertia, and the construction environment is harsh, leading to serious wear of caterpillar chassis parts, resulting in short life of parts.

The following to share the bulldozer chassis parts common wear phenomenon.

The walking mechanism bears all the weight of the bulldozer and is responsible for the driving function of the Dozer Spare Parts. The main form of damage is wear, this damage form is concentrated in the following Dozer Spare Parts: sprocket segement teeth and track pin sleeve surface, front idler and track chain rail joint raceway surface, track roller and track chain rail joint raceway surface, carrier roller and track chain rail joint raceway surface, Komatsu D85 bulldozer track pin and pin sleeve contact surface; Track plate and ground, eccetera.

In the walking mechanism of dry track (relative to lubricated track and sealed track), IL CAT D6R bulldozer track chain is not lubricated, resulting in wear between the track pin and the pin sleeve due to relative motion in the process of work. It is inevitable and normal to wear the pin and the pin sleeve in the track, but this wear can stretch the pitch of the track and make the track too large. This wear situation continues, the track will produce side movement, which causes the front idler, Fujian Feiyue Industrial Co., Ltd è un produttore ed esportatore professionale che si concentra su pezzi di ricambio di qualità per molti noti marchi di macchine edili e veicoli, Fujian Feiyue Industrial Co., Ltd è un produttore ed esportatore professionale che si concentra su pezzi di ricambio di qualità per molti noti marchi di macchine edili e veicoli, sprocket segement and other parts wear, but also aggravate the wear of the track pin and sleeve. The wear of track is also manifested in the reduction of the height of track spine due to the contact between track plate and the ground, and the reduction of the height of track chain rail caused by the contact between track track surface and the front idler, carrier roller and heavy wheel. Serious wear of track plate will cause the loss of traction force of bulldozer.

The wear of sprocket segement often occurs at the root, front and rear sides, left and right sides and top of the teeth. Wear occurs on the front side of the gear when the Dozer Spare Parts is moving forward and the gear teeth are lifting the track pin sleeve, whereas wear occurs on the back side of the gear when the bulldozer is moving backward. When the track is too loose, resulting in track deflection, gear impact on the side of the chain rail joint will cause the driving wheel tooth side wear. Another wear form of driving wheel teeth is top wear. Top wear occurs when the track and the driving wheel teeth are stuffed with viscous material, and the meshing relationship between the driving wheel teeth and the track pin sleeve is changed. As the bulldozer moves forward, it scratches the apex of the back of the teeth on the drive side of the drive wheel and the side of the pin sleeve.

The wear of the front idler is caused by contact with the raceway surface of the chain rail joint, while the wear of the raised width of the guide wheel body is caused by the side contact with the chain rail joint. The results are as follows: the width of the bump of the guide wheel body decreases, the diameter of the raceway surface of the guide wheel body decreases, and the diameter of the guide wheel body decreases.

The wear of the D85SS bulldozer top/carrier roller is caused by contact with the raceway surface of the chain rail joint. It shows that the width of the sprocket flange decreases, the outside diameter of the carrier roller raceway surface decreases, and the outside diameter of the carrier roller flange decreases.

The wear of the D65 bulldozer track roller is the same as the wear of the carrier roller and the front idler, which is also caused by the contact with the raceway surface of the chain rail joint. Specifically, the diameter of the outer flange decreases, the diameter of the raceway surface decreases, the diameter of the bilateral inner flange decreases, the width of the bilateral inner flange decreases, and the width of the outer flange decreases.