OPTIMIZING THE TECHNOLOGY OF RECONDITIONING LARGE HIGH PRECISION GEAR RIMS
Journal Title: Сучасний стан наукових досліджень та технологій в промисловості - Year 2018, Vol 3, Issue 1
Abstract
The subject matter of the research is issues related to the optimization of the technology for reconditioning large-size high precision gear rims of the drives of mining complexes, mine lifting equipment, heavy vehicles; these issues are a perspective trend for reducing the cost of reconditioning and operation of expensive unique equipment. The goal is to ensure intensifying production processes, increasing workloads and speeds, reducing the deterioration of high precision gear rims. The objective is to develop a new technology to optimize reconditioning large high precision gear rims. To achieve this, the following method is suggested – to machine gear rims after they have been surfaced by pre-milling with special hob cutters with a prominence and by final machining the teeth with special cutters equipped with hardmetal inserts that process teeth along the line of engagement, which does not require making full-length cutting teeth and increases the quality of machining, the durability of hardmetal milling cutters. The process of reconditioning of large high precision gear rims is a resource-saving technology, as compared with manufacturing new parts, this technology considerably reduces the cost of materials for manufacturing, decreases a number of process steps, reduces the cost of machining equipment, tools, cutting and measuring instruments. The smooth operation of a gear train can be ensured only at a constant gear ratio but due to manufacturing and operational errors, the gear ratio is not constant at every time, which intensify the deterioration of large high precision gear rims. The following results are obtained. The possibility and practicability of using hob cutters with a prominence (m = 20-28 mm) while rough cutting the worn and reconditioned large gear rims was proved. To obtain the necessary durability of rough milling cutters, it is recommended that the prominence angle be set within 8-10°. The use of hardmetal hob cutters for finishing makes it possible to increase the performance rate by 2 to 3 times as compared to high-speed cutters of other designs and to obtain the necessary quality and precision of manufacturing worn and reconditioned large gear rims. Conclusions. The technology for the optimization of reconditioning large high precision gear rims with the use of special and universal hardmetal single- and double-flute cutters that have both re-sharpened cutting elements and disposable rotary tools was developed and introduced.
Authors and Affiliations
Victor Shapovalov, Alexander Klochko, Magomedemin Gasanov, Olesya Antsyferova, Аnna Belovol
Keywords
Related Articles
- EP ID EP472208
- DOI 10.30837/2522-9818.2018.3.059
- Views 84
- Downloads 0
INFORMATION AND SOFTWARE SUPPORT OF THE HR MANAGER OF AN IT-COMPANY
The subject matter of the article is the processes of developing and testing the personnel of an IT company. The goal is to ensure the qualitative structure of personnel by automating data processing and testing candidat...
ASSESSING THE QUALITY OF THE COMMUNICATIONS HARDWARE OF A DEVELOPMENT PROJECT
The subject matter of the article is the factors that increase the efficiency of internal communications by selecting high-quality hardware. The goal of the article is to build a model for assessing the quality of hardwa...
THE ECONOMIC SUBSTANCE OF ACCOUNTING FOR FINANCIAL INVESTMENT AND THE PROSPECT OF USING “BLOCKCHAIN” TO CONTROL INVESTMENT ACTIVITY IN UKRAINE
The subject matter of the research is the financial investment and the application of innovative technologies to improve accounting in the context of investment management as one of the most important components of econo...
DECISION SUPPORT SYSTEM IN PLANNING INVESTMENT PROJECTS
The subject matter of the study is the processes of planning investment projects for the development of organizations. The goal of this article is to develop an algorithm and software product of the decision support syst...
METHODOLOGICAL SUPPORT FOR ASSESSING THE INNOVATIVE CREATIVITY OF INDUSTRIAL ENTERPRISES BY CREATIVE AND DYNAMIC DIRECTIONS
The subject matter of the study is the theoretical and methodological provisions, components, methods and tools for assessing and enhancing innovative creativity. The goal of the article is to improve the methodological...