000 03359nas|a2200409 i 4500
005 20260818114721.0
008 080499s1998 th uzm rtt 00| a1eng d
035 _a.b1174697x
099 9 _aAIT Thesis no. AE-98-4
100 0 _aTasliman
245 1 0 _aFurther development of a tractor front mounted pineapple plant dressing machine using a hydraulic transmission system
260 _aBangkok :
_bAsian Institute of Technology,
_c1998
300 _a69 leaves
490 1 _aThesis ;
_vno. AE-98-4
500 _aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development
520 _aAn attempt was made to design a hydraulic power transmission and a mounting frame with hydraulic lifting mechanism to provide adjustable cutting height for a front mounted pineapple plant dressing machine previously developed. The machine had four blades of 0460 cm, with a spacing of 70-60-70 cm. The tractor used was a Massey Fergusson tractor MF 185. Power was taken from tractor pto through a chain-sprocket step-up transmission. Hydraulic motor used was a low speed and a step-up transmission was used to obtain high blade speed. The developed hydraulic transmission and lifting mechanism could perform well although still some improvements are needed. Field tests were conducted in pineapple plantation. Because of unsatisfactory performance using four blades, only two blades were used. Short time field testing revealed that the field capacity was 0.22 ha/h and field efficiency was 72.3%. Cutting effectiveness was 93%, plant damaged was 0.3%, and height of cut was 35.5 cm. Net torque to drive one blade at normal conditions was estimated to be 5.4 N.m. Maximum torque at motor shaft was 342 N.m. However, when blade shafts were wrapped and clogged by weeds and cut leaves, the machine was likely to stall. A long term testing is necessary to estimate the accurate field performance of the developed machine.
502 _aThesis (M.Eng.) - Asian Institute of Technology, 1998
650 0 _aTractors
_xHydraulic equipment
700 1 _aSalokhe, Vilas M.,
_eChairperson
700 1 _aSingh, Gajendra,
_eExamination Committee
700 1 _aGee-Clough, D.,
_eExamination Committee
710 2 _aDevelopment of Undergraduate University (DUE) Project, University of Jember, Indonesia,
_eScholarship donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. AE-98-4
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B13092
907 _a.b1174697x
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