Weight reduction of the backhoe arm of a backhoe loader

Öz

Today, backhoe loader machines are widely used in different areas such as the construction industry, mining industry, arrangement of agricultural areas, maintenance and repair activities in settlements. One of the most important reasons why the usage areas of these machines are so wide is that they have a design that includes both excavation and loading capabilities. With different attachments attached to both the backhoe and loader mechanisms, backhoe loader machines can have a wide variety of operating capabilities. In this study, weight reduction of the backhoe arm of a backhoe loader is carried out. The results obtained from the analyzes made on the existing design gave direction to the weight reduction process. While creating alternative models within the scope of the weight reduction process, the structures of the connection points of the mechanisms, their positions and the distances between these connection points were kept constant, allowing all alternative designs to be mounted on the machine without the need to make any changes on the existing machine. With this weight reduction study, it is aimed to reduce the weight and fuel consumption of the machine as well as to increase the operating efficiency of the machine. Structural analyzes were made on the optimum structure obtained, and it was examined whether the new model was suitable for working conditions in terms of strength. The current design and the optimized design are compared in terms of strength and operating performance.

Anahtar Kelimeler

• backhoe arm
• structural optimization
• backhoe loader machines
• FEM analysis
• thickness

Kaynakça

1. www.hidromek.com.tr/upload/dokumanlar/8102020145539712_alpha_3a_katalog_tr.pdf, 03/07/2022.
2. Khan, F. M., Islam, M. S., & Hossain, M. Z. “Design aspects of an excavator arm”, International Review of Mechanical Engineering, 10 (6), 437-442, 2016.
3. Solazzi, L. “Design of aluminium boom and arm for an excavator”.Journal of Terramechanics, 47(4), 201-207. 2010.
4. Qureshi, J. H., & Sagar, M. “The finite element analysis of boom of backhoe loader”.International Journal of Engineering Research and Applications, 2, 1484-1487, 2012.
5. Hemant B.Patil, Sharad D.Kachave. “Effects of Web and Flange Thickness on Bending Stiffness of Chassis”. International Journal of Advance Research in Science and Engineering (IJARSE), 2 (7), 2013.
6. International Organization for Standardization, Earth-moving machinery — Hydraulic excavators and backhoe loaders — Methods of determining tool forces (ISO Standard No. 6015:2006), https://www.iso.org/standard/40689.html , 2006.
7. Patel, B. P., & Prajapati, J. M. “Evaluation of bucket capacity, digging force calculations and static force analysis of mini hydraulic backhoe excavator”, Machine Design, 4(1), 59-66, 2012.
8. European Standards. Hot rolled products of structural steels (EN Standard No. DIN EN 10025:2005). https://www.en-standard.eu/din-en-10025-1-hot-rolled-products-of-structural-steels-part-1-general-technical-delivery-conditions/ , 2005.

9. European Standards. Bright steel products - Technical delivery conditions (EN Standard No. DIN EN 10277:2018). https://www.en-standard.eu/din-en-10277-bright-steel-products-technical-delivery-conditions/ , 2018.