| Popis: |
This paper deals with the problem of improving the quality of parts of tillage machines and increasing their durability and resource of machines through the use of more efficient technology both in mechanical engineering during their manufacture and in repair production during their restoration. The purpose of the study is to substantiate and select a more effective technological process for increasing the durability of parts of tillage machines operating under conditions of abrasive wear, taking into account design factors. As the studies have shown, the wear resistance of these parts depends on the following factors: duration and operating conditions, the composition of the cultivated soil, methods of preliminary processing of their material, restoration methods. The analysis of these factors, which determine the intensity of wear of the cutting elements of a part of soil-cultivating machines, makes it possible to develop a technology for both their hardening in mechanical engineering and restoration in repair production. Strain gauge studies of the parameters of the cutting working bodies of machines for various technological hardening processes have been carried out to select a more effective technological method for their restoration. On the basis of the carried out complex of researches and experiments, the technology of restoration of lancet cultivator paws, plow shares and disks of diggers of beet harvesters by the method of vibration hardening has been developed and introduced into production, which will increase their durability and reliability. The obtained research results can be used in mechanical engineering to strengthen the specified parts of tillage machines during manufacture. |
