International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 03 | March -2017
p-ISSN: 2395-0072
www.irjet.net
A Review on the Oil Expeller Screw Shaft Mr. Amol A. Patil1, Mr. Swapnil D. Gaikwad2, Mr. R. S. Kulkarni3 P.G. Student, Department of Mechanical Engineering, SETI, Panhala, Maharashtra, India 1,2 Associate Professor, Department of Mechanical Engineering, SETI, Panhala, Maharashtra, India3
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Abstract - The presented research concentrated on the
designed and failure finding in existing types oil expeller shat used for oil extraction in the agricultural products. The different researches were studied for study failure occurred in the screw shaft. The presented review in this article can be useful for developing the new design of the oil expeller shaft. The proposed research not only finding the failures in the screw shaft but it can be useful developing the oil expeller through traditional techniques and computational techniques.
The need for new designs of oil expeller is base on the cost and efficiency of the machine especially for the usage in small and medium size industries. It has to be cost effective and light weight to accommodate such demands. The existing oil expellers in the market are too big and too expensive for these small medium size businesses to invest on. Other limitations are its maintenances aspect as well as it operations.
Key Words: Oil Expeller, Shaft, Failure, Computational Techniques
2. PARTS OF OIL EXPELLER SHAFT:
1. INTRODUCTION: The Oil extraction technology has been in use for a very long time in India and the techniques that are followed for expelling oil are very laborious and relatively inefficient. There has not been any significant improvement in the oil extraction processes and even today a century old technology such as single screw press, ghani, hydraulic presses1 are being used in various parts of the country. Mechanical screw presses are ideally preferred for oil extraction as they are economical and continuous production can be achieved. Any improvement in the technique of oil extraction tends to bridge the technological gap and increase availability of feedstock for extraction of oil [1]. An Oil Expellers is a horizontally rotating metal screw, which feeds oil-bearing seeds into a barrel shaped outer casing with perforated walls. The seeds of crop like cotton, ground nut are continuously fed over the expeller, which grinds, crushed and presses the oil out as it passes through the machine. The pressure of the expeller screws ruptures the oil seeds in the product and oil flows through the perforations provided in the casing and it is collected in a trough provided at the bottom of casing [2]. The residue of the material of crop seeds from which oil has been extracted called as cake. The materials used for manufacturing of an expeller press include mild steel. The oil expeller machine uses resistance and constant pressure from the screw drives to move and compress the seed material. In the some cases of expeller pressure created due pressing the heat is generated in the range of 140–210 °F (60–99 °C) [3]. © 2017, IRJET
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The oil expeller consists of different parts. It mainly consists of body, hopper, main shaft and gear assembly. The screw shaft is provided with gear assembly to rotate in the cage. The following are the parts included in the construction of oil expeller machine shown in fig.1.1. a. Body The body is as the casing of the parts of oil expeller machine. It is made of the highly closed grained casting to ensure continued service without any vibration and accurately. b. Hopper The hopper is used for feeding the raw materials for extracting the oil from it. It is directly over the grinder and maintains the flow of oil seeds during the operation. c. Bed The bed is provided for support to the structure of oil expeller machine. The structure is made of the steel. This ensures the better alignment and balancing to the parts of the oil expeller machine. The bed is provided with good vibration absorbing mechanism so that with stand with loading capacity. d. Main shaft It is main part of expeller. It carries and support to worm gear, cone, collar, cutter, gear etc.
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