Factory Sales All Kinds Of Caterpillar Cat Excavator Tracks For Sale

For crawler walking devices used in swamps or farmland, in order to protect the ground surface and reduce the turning resistance, it is more appropriate to use extended crawler and flat bottom crawler. In order to ensure that when the crawler chain is in any position (including grounding, rotating around the driving wheel and guide wheel, and the upper suspension position), the adjacent two crawler shoes will not be caught between stones and cause excessive stress. The distance is adjusted accurately and the lap lip of the appropriate shape should be designed.

The function of the lap lip is to make the track shoes abut against each other, forming a belt that connects end to end. Track shoes should be installed sequentially in the same direction. The smaller the pitch of the track, the smaller the rise of the track chain when it runs between the drive wheel and the guide wheel. In this way, the running uniformity is good, the wear of the crawler chain is low, and the driving efficiency is high when walking. However, the minimum pitch value should be determined according to the machine weight and the number of rows of the crawler chain. The distance between the holes on the two rows of chain rails where the track shoes are installed should generally be larger, so that the track shoes with different grounding specific pressures can be replaced.

The walking device used in the swamp requires very wide track shoes and track surfaces, and such ultra-wide track shoes sometimes have high bending stress. For example, when the excavator is working on the ground mixed with residual tree roots, a part of the machine weight falls on a track shoe supported by tree roots, so that the track shoe has a very high bending stress, which affects the track. life of the board. In order to prevent the damage and bending of the track shoes, the section coefficient and bending strength must be increased. To increase the section coefficient, it is necessary to increase the height of the tread bars, but this will significantly increase the turning resistance and affect the mobility of the excavator. Therefore, steel rolled hollow track shoes should be used for walking devices with a width of more than 700 mm for swamps.

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