EVALUATING PERFORMANCE OF A POST HOLE DIGGER | ||||
| Journal of Soil Sciences and Agricultural Engineering | ||||
| Article 23, Volume 34, Issue 5, May 2009, Page 5783-5793 PDF (720.54 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jssae.2009.93132 | ||||
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| Authors | ||||
| H.A. El-Gendy; S.N. Abd El-Halim; H.A. Morghany; A.M. Aboukarima | ||||
| Agric. Eng. Res. Inst., ARC, Egypt. | ||||
| Abstract | ||||
| Mechanization plays an essential role in agriculture and assures timely completion of farm operations. For planting trees, it is required to dig many holes to finish planting in certain time. This operation is done by helping of hole digger. It is the fastest method to dig holes by PTO driven implement, made for all types of soil and easy to transport. The purpose of this study was to evaluate the effect of diameter of the hole digger and presence or absence shares on the tip of it on power requirements and time needed for evacuating soil from a hole. The study was carried out at Nubaria area "Ahmed Shouky village", the soil texture was sandy. The treatments included all possible combinations of diameter and presence or absence shares on the hole digger tip. Digging depth was accomplished to a 600 mm depth. The rotary speed for tractor PTO was constant at 540 rpm and decreased by hole digger gear-box to 350 rpm. The tractor had category III- three point hitch and power of 48.5 kW "65 hp". The required torque and time consumed to evacuate soil from a hole were measured. The auger diameter of the hole digger and presence or absence shares on the auger tip had significant effect on the required torque and time consumed to evacuate soil from a hole. The highest time consumed to evacuate soil from digging hole and the highest power requirement at dig hole were 105.96 s and 63.34 kW, respectively. The power requirement (kW) of hole digger could be obtained using auger diameter (D, mm) and index for shares (I = 0 or 1 when the shares on the auger tip were presented or absent, respectively) as follows: R2=0.995 | ||||
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