STUDY OF THE TURNING PROCESS OF THE BRIDGE TYPE MACHINES

One of the ways to improve the maneuverability of wheeled axle machines when they move along the tracks of a constant technological track is the use of onboard turning. This simplifies the layout, increases the useful volume of the machine due to the release of niches in the machine body, necessary for placing the steering wheels when turning. However, the question of the efficiency of onboard turning of axle machines by the criterion of power input remains insufficiently studied. The aim of the research is to substantiate the criterion of the power required to implement on-board turns of an overhead machine. Theoretical research, synthesis of design schemes, parameters and modes of operation of bridge machines have been carried out by simulating on a personal computer the conditions of their functioning. The basics of theoretical mechanics and tractor theory were the basis of the research methods. As a result of the research, it has been established that power (onboard) turning is widely used for wheeled machines and has a prospect of application on bridge machines used in the track farming system. Approbation of the developed methodology of determining power inputs for power (onboard) turning of wheeled axle machines has shown that under the accepted conditions of turning the power required for turning of the axle machine is 28% of the engine power at a speed of 5 km⸱h–1. As the gauge of the bridge machine increases, the total power required for the power (onboard) turn increases exponentially.