Known for its ability to maneuver on surfaces inaccessible to other equipment, caterpillars provide mobility to several heavy military equipment from tanks to bulldozers. The first vehicle with caterpillar was the transport of logs, which was patented in 1901. Caterpillar Corporation specializes in machinery with continuous traction and the track name is used to describe this type of traction.
Metal tracks are designed similarly to the chains and have joints every other link. This allows you can change angles to accommodate uneven terrain. Often used in small machines, rubber tracks can function as joints or tracked in one piece depending on the size of the caterpillar. Rubber parts allow caterpillar allow suits field changes, constructed as a one-piece unit, which allows the caterpillar can be adapted to many machines.
Caterpillars are mobilized by an address which can have teeth, like a gear. Wheel transmission, which remains in a fixed position, can be mounted on front or rear of the caterpillar. At the opposite end of the unit is the tension wheel, which is not fixed. The angles of the idlers in the front or back (depending on where they are located) of the track can climb any obstacle. This wheel also acts as a tensioner adjusting any loosening of the track.
Types of suspension
Caterpillars are kept in place by the components of the suspensions, which may be of two kinds: Vickers or Christie. According to the article “A History of Crawler Tracks” (The history of the tracks), the Christie suspensions using large wheels on which the caterpillar rests. These suspensions may be identified by the sections falling onto the track once each wheel running over the drive wheel and idler. The Vickers suspensions use a series of smaller rollers return maintaining the level of the caterpillar tensioners and between the drive wheels.
The rollers are a very important component of the suspensions of the caterpillars, since the guide during operation. Caterpillars have three different types of rollers. The type of machinery to be charged on the track will determine what the most suitable roller is. These can be single or double with a double rim flanges wider supporting caterpillar traction. The transport rollers and bearings incorporate large, while the star rollers are designed to operate in extreme cold or situations in situations where excessive accumulation of material occurs.