Creeper (technology)

In drive technology, crawler gear is an extremely high transmission ratio of a transmission .

An extreme reduction of a gearbox in vehicles is used to drive slowly without a 'slipping' clutch - mostly for use in rough terrain (in connection with an all-wheel drive ), when transporting cable car gondolas in stations or also during work, if the vehicle is also on the Road needs to be moved. Appropriately equipped vehicles are used, for example, for heavy haulage , in the construction industry, by motorway maintenance depots , municipal depots, cemetery administrations and in agriculture. They are also necessary for street cleaning vehicles and other construction and road maintenance vehicles.

The technique is also used in stationary gears, about when exposed conveyor belts the icing in the winter to prevent or emergency operation of cable cars .

Similar applications

In the on the Swedish iron ore railway used locomotives of types SJ Dm3 and IORE during loading and unloading is freight trains a creeping used ( Swedish krypkörning ). With many rail vehicles, the wash mode can be selected in the driver's cab , which controls the particularly slow travel through the wash system.