Research On The Key Technology Of Innovative Design Of New Combined Structure Saw Blade

In this paper, according to my developing experience of being engaged in marble planks incision equipment for dozens of years and the market demand to large breadth surface stone products, fully considering the fact of widely using disk saws below φ 1800mm, a new idea called new combined stone incision saw blades was put forward and the saw blades were divided into supporting function module, driving function module and cutting function module based on the innovation design principle and function analysis of saw blade. At the same time, in order to validate the practicality of the kinetosome structure of the saw blades, the finite element analysis was applied to study load, deformation and stress distribution of new combined stone incision saw blades in working, to analyze its low model shape, inherent frequency, which influenced its application effect. Finally, the new combined stone incision saw blades were optimized based on the analysis data.The structure analysis and mode analysis of new combined stone incision saw blades were carried out. On the other hand, compared and contrasted with new combined stone incision saw blades, the finite element analysis of holistic diamond saw blades that are widely used and has the same diameter was carried out, too. The result shows that the low rank modes of new combined stone incision saw blades and common diamond saw blades locate in the same order of magnitude and there was no much difference in values. Furthermore, the kinetosome stress distributing is similar. All these data show that the new combined stone incision saw blades have the similar machining capability with the common diamond saw blades that have the same diameter and can satisfy the machining quality request generally.In order to deal with the residual stress of new combined stone incision saw blades, the thermal stress analysis was carried out. The analysis result shows that the influence by temperature of new combined stone incision saw blades is stronger than common diamond saw blades, and bigger thermal stress came into being. The temperature distribution in saw blades kinetosome is even. Based on the third intensity theory, the thermal stress does not exceed the range of safety permissible stress of material. The value of stress is bigger in weld of kinetosome and agglomeration and in edge of agglomeration. So the residual stress must be dealt with before saw blades are used. The thermal stress analysis offers detailed residual stress distribution status of saw blades, and also offers theory reference for tensity handling of new combined kinetosome saw blades.The optimum design was carried out combined with the results of structure analysis and mode analysis. The structure analysis and mode analysis aim to realize the application capability and dynamic capability, and offer dada reference for optimum design of new combined kinetosome saw blades. Based on the different state variables, three optimum designs were carried out. Considering the first rank inherent frequency of new combined kinetosome saw blades, the optimization results were taken out.Compared with the original design, the value of optimization of φ 1800mm sawblades reduced 3kg, more importantly, the first rank inherent frequency is increased, and the deformation and most equivalent stress decrease. So the application capability and dynamic capability of optimization saw blades were improved.In order to validate the finite element analysis results and ulteriorly investigate the dynamic capability and application capability, the stress analysis experiment, mode analysis experiment and temperature check experiment were designed.