Influence of Cutting Elements Parameters on the Cultivator Tine Wear Intensity

Abstract

The results of the experimental studies of wear of the cutting elements of cultivators tines from an angle a ߛ of their setting have been given to the movement direction. A physical process of modeling of tines cutting elements samples wear in the circle channel for soil-cultivating working organs tests proves the feasibility of the parameter researched in the design and development of new ones and enhancement of the existing soilcultivating working organs for support of safety of the initial geometrical characteristics in case of wear of the surfaces contacting to the abrasive environment of the soil. The value of wear of the cutting elements paws of cultivators on an operating time has been proved to grow with the increase of angle ߛ in the change range of rational values of this index. In particular, it has been revealed that the minimum way of friction which leads to achievement of limit value of wear on thickness of an edge which equals 1 mm makes 180 km. The way of friction to limit value of wear increases with increase in an angle γ. So in case of ߛ= 80 ° value of this index makes s = 280 km. Similar regularity of increase in value of wear from a friction path has been also observed on weight indexes. The results specifying different intensity of tine edge wear in case of its execution with a variable span angle have been received. The perspective direction of support of a equal wearing of such working organs in case of operation is application of the modern methods of local hardening on length of the cutting elements paws of cultivators.