scholarly journals Analysis of optimal costs for reserves of spare parts for agricultural machines

2018 ◽  
Vol 65 (1) ◽  
pp. 81-92
Author(s):  
Marjan Mirčevski ◽  
Milan Mihajlović ◽  
Milan Milunović ◽  
Ivan Milojević ◽  
Radovan Damnjanović ◽  
...  
Keyword(s):  
Spare Parts ◽  
Agricultural Machines

scholarly journals ОРГАНИЗАЦИЯ РЕМОНТНОГО ПРОИЗВОДСТВА ИЗНОСА ДЕТАЛЕЙИ ВИДЫ ВОССТАНОВЛЕНИЯ

2019 ◽  
Author(s):  
D.G. Churilov ◽  
S.D. Polischuk ◽  
Y.A. Stekolnikov ◽  
I.S. Arapov ◽  
A.V. Shemyakin
Keyword(s):  
Regulatory System ◽  
Physical And Mechanical Properties ◽  
Technical Condition ◽  
Spare Parts ◽  
Production Cycle ◽  
Recovery Processes ◽  
Restoration Work ◽  
Working Bodies ◽  
The Cost ◽  
Agricultural Machines

Организацияремонтного производства на основе оптимального использования передовых технологических процессов позволит восстанавливать и упрочнять рабочие органы сельскохозяйственных машин с учетом минимума затрат как на процессы восстановления, так и на функционирование предприятия в целом.При ремонте существуют несколько вариантов: заменить изношенныедетали на новые или произвести восстановление изношенных с доведением и улучшением их физико-механических свойств.Восстановление более предпочтительно. Оно позволяет сокращать время простоя неисправных машин и оборудования, повышать показатели надежности использования машин.Экономика работ по восстановлению заключается в снижении себестоимостиремонтакак агрегатов,так и машин. При этом необходимо восстановить геометрические показатели деталей.Анализ статистики показал,что годных для восстановления деталей до 50 и только до 9 не подлежат восстановлению.По сравнению с изготовлением новых запасных частей количество операций обработки сокращается в 3-8 раз.Важное преимущество восстановления малая металлоемкость. В процессах восстановления требуется на 50-75 меньше металла,чемдля изготовленияновых.Восстановление деталей к импортным машинам можно рассматривать как альтернативу дорогим оригинальным запчастям.При этом должна быть налажена регламентная систематехобслуживания и ремонтасельскохозяйственных машин по фактическому техническомусостоянию. Качестворемонта зависит оторганизации всех звеньев производственногоцикла, воснове которого лежиткомплексмероприятий техническогохарактера.The organization of repair production based on the optimal use of advanced technological processes will make it possible to restore and strengthen the working bodies of agricultural machines, taking into account the minimum costs of both the restoration processes and the functioning of the enterprise as a whole. During repair, there are several options: to replace worn parts with new ones or to restore worn parts with improvement in their physical and mechanical properties. Recovery is more preferable. It makes possible to reduce the downtime of faulty machines and equipment and to increase their reliability. The economics of restoration work is to reduce the cost of repairs of both units and machines. For this, it is necessary to restore the geometric parameters of the parts. The results of statistics showed that up to 50 of parts were suitable for recovery and only up to 9 cannot be restored.Compared with the manufacture of new spare parts, the number of machining operations is reduced by 3-8 times. An important advantage of recovery is low metal consumption. In the recovery processes, 50-75 less metal is required than for manufacturing the new ones. The restoration of parts for imported machines can be considered as an alternative to expensive original spare parts. At the same time, a regulatory system for maintenance and repair of agricultural machines according to the actual technical condition should be established. The quality of repairs depends on the organization of all parts of the production cycle, which is based on a set of technical measures.

scholarly journals CHALLENGES FOR THE DEVELOPMENT OF AGRICULTURAL POWER MACHINES AND THEIR OPERATING COSTS IN HUNGARY

2018 ◽  
Vol XX (5) ◽  
pp. 81-86
Author(s):  
Szilvia Erdeiné Késmárki-Gally ◽  
Renáta Rák
Keyword(s):  
Agricultural Production ◽  
Significant Proportion ◽  
Spare Parts ◽  
Operating Costs ◽  
High Quality ◽  
Equipment Investment ◽  
Inappropriate Use ◽  
The Past ◽  
Agricultural Machines

One of the most important factors of competitive production is mechanization, which enables tasks to be done on time and in a high-quality manner. Nowadays, in Hungary, many distributors deal with the trading of agricultural machines and spare parts. The operating costs of these machines constitute a significant proportion of the expenses involved in agricultural production, and thus the appropriate and inappropriate use of machinery can significantly influence the efficiency of farming. The goal of this study is to present the market of agricultural power machines, examine the operating costs and analyse the causes of changes in the Hungarian machinery market during the past few years. In our research, it can be seen that EU co-financed support for machinery and equipment investment have a great impact on the replacement of power machines and average annual usage, since after EU subsidies are no longer incoming, the number of agricultural machines sold has decreased.

scholarly journals Research of problems of technical operation of agricultural machines

2021 ◽  
Vol 937 (3) ◽  
pp. 032053
Author(s):  
G Kokieva ◽  
A Spiridonova ◽  
A Anosova ◽  
V Belomestnykh ◽  
A Pekhutov
Keyword(s):  
Practical Interest ◽  
Spare Parts ◽  
Economic Feasibility ◽  
Labor Costs ◽  
Automatic Control Systems ◽  
Technical Potential ◽  
Rural Producers ◽  
Technical Operation ◽  
The Cost ◽  
Agricultural Machines

Abstract Tracking devices are increasingly used in automatic control systems for mobile agricultural machines. Many elements are regulated by standards and specifications, and it is of scientific and practical interest to establish a correspondence between the reliability of restored parts and connections with the reliability of machines. This is due to many reasons, one of which is a decrease in the technical potential of the village: the composition of the machine and tractor fleet is decreasing, the physical and moral wear of equipment is progressing. Repair and maintenance of cars due to the price arbitrariness of intermediary structures, mainly on the part of collective farms and farms. For this reason, the reliability and reliability of the machine park of rural producers remain low, negatively affects the agrotechnical timing of mechanized work, their cost. In accordance with the standard technology, standards of labor costs for the repair of machines, standards for the consumption of materials needed for repair, and standards for the consumption of spare parts were created. The economic feasibility of restoring parts is usually assessed by comparing the cost of a new part and the cost of repairing a worn one.

scholarly journals The FDM Technique in Processes of Prototyping Spare Parts for Servicing and Repairing Agricultural Machines: A General Outline

2021 ◽  
Vol 26 (4) ◽  
pp. 145-155
Author(s):  
Krzysztof Łukaszewski ◽  
Tatiana Buchwald ◽  
Radosław Wichniarek
Keyword(s):  
Spare Parts ◽  
Engineering Industry ◽  
General Outline ◽  
Technical Parameters ◽  
Economic Issues ◽  
Machine Type ◽  
Number Of Factors ◽  
Processed Material ◽  
Alternative Techniques ◽  
Agricultural Machines

Abstract The aim of this research was to determine the possibility of applying alternative techniques for the production of prototypes for spare parts in agriculture and to determine the possible directions of development of their applications in the engineering industry. Then, to determine which spare parts could be produced using the FDM technique, comparisons of the most important parameters of spare parts produced independently (using the FDM technique) and obtained from producers (produced using traditional methods in professional factories) were made. A number of factors were analysed, from technical parameters such as machine type, processed material and its consumption including required as support structures, to economic issues such as manufacturing or purchase delivery total time and cost. The FDM technique has proven itself in many ways in the production of spare parts for agricultural machinery.

scholarly journals MILP model for the planning of a Computerized Numerical Control Lathes Machining Plant

2021 ◽  
Vol 24 (2) ◽  
Author(s):  
Maria Rosa Galli ◽  
Federico Kañevsky ◽  
María Agustina Franco
Keyword(s):  
Job Shop ◽  
Spare Parts ◽  
Numerical Control ◽  
Flexible Job Shop ◽  
Scheduling Problems ◽  
High Complexity ◽  
Classic Problem ◽  
Milp Model ◽  
Computerized Numerical Control ◽  
Agricultural Machines

This work introduces the formulation and application of a MILP model to solve the problem of planning the weekly production of a machining plant using numerical control lathes to manufacture spare parts for agricultural machines. The machining plant works under a Flexible Job Shop system and it has reduced workforce with different skills to operate the various high-complexity lathes and to carry out setup operations in each machine. The developed model is based on a basic formulation for the classic problem and we introduce some flexible adjustment for the various situations that may arise from different scheduling problems. The model is applied to various scenarios; and we include a discussion of the improvements brought about by the analysis.

Teknologi Inokulasi Besi Cor Kelabu FC-250 Untuk Mencegah Pengerasan Pada Dove Tale Produk Ragum Tipe 125

2019 ◽  
Vol 16 (2) ◽  
Author(s):  
Amin Suhadi ◽  
Seodihono
Keyword(s):  
Mechanical Properties ◽  
Cast Iron ◽  
Treatment Process ◽  
Gray Cast Iron ◽  
Spare Parts ◽  
Gray Cast ◽  
Micro Structure ◽  
Control Factors ◽  
Seed Inoculation ◽  
Casting Industry

Production technology of metal casting industry in Indonesia needs to be improved, especially in the manufacturing of spare parts and box engine made of gray cast iron which has various wall thick such as dove tale construction. Microstructure of gray cast iron is influenced by cooling rate during casting, chemical composition and melting treatment process (inoculation). The part which has the thinnest thickness has the fastest cooling therefore, the grain boundary is smaller compared to other section. As a result this part has highest hardness and difficult to be machined. This research is conducted to solve this problem by modifying melting and solidification treatment process. The research starting from micro structure analysis, composition and mechanical properties tests on the product, and then conducting modification treatment through Taguchi method approach. Experimental results obtained show that the best level settings to control factors which affect to the uniformity of the microstructure and mechanical properties in gray cast iron is the addition of seed inoculation super ® 75, as much as 0.25% with the method of inoculation material entering into the Transfer Ladle.Teknologi produksi pada industri pengecoran di Indonesia masih membutuhkan perbaikan terutama dalam pembuatan komponen mesin perkakas dan peralatan pabrik yang terbuat dari besi tuang kelabu yang mempunyai variasi ketebalan yang besar seperti konstruksi ekor burung (dove tale). Pada pengecoran, struktur mikro dari besi tuang kelabu sangat dipengaruhi oleh kecepatan pendinginan, komposisi kimia dan proses perlakuan pada logam cair (inokulasi). Bagian yang mempunyai ukuran paling tipis mempunyai kecepatan pendinigan paling tinggi karena itu ukuran butirnya jauh lebih kecil dari bagian lain, akibatnya bagian ini mempunyai kekerasan lebih tinggi dan sulit dilakukan pengerjaan mesin. Penelitian ini bertujuan untuk memperbaiki hal ini yang terjadi pada dove taledengan cara memodifikasi proses perlakuan pada cairan besi dan proses pendinginan. Penelitian dimulai dari analisa struktur mikro, pengujian komposisi kimia, pengujian sifat mekanis pada produk kemudian dilakukan modifikasi menggunakan pendekatan metode statistik Taguchi. Hasil penelitian menunjukkan bahwa pengaturan terbaik yang dapat diperoleh untuk mendapatkan keseragaman struktur mikro dan sifat mekanis pada pengecoran besi tuang kelabu adalah penambahan seed inoculation super ® 75, sebesar 0.25% dengan metode pemasukan inokulasi kedalam Ladle pengangkut logam cair.Keywords: carbon, micro structure, hardness, inoculation

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