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本文通过对丰收—37拖拉机在珠江三角洲地区的水田旱耕试验,研究了该机传动系统的工作载荷。试验表明,当土壤比阻在0.5～0.9公斤/厘米~2范围,土壤相对湿度为40％左右,用原装11—38”胶轮进行耕作时,拖拉机的滚动阻力平均值为164公斤。当耕深在14～18厘米时,驱动轮平均扭矩值为744公斤·米,扭矩利用系数为c=0.783。若拖拉机在正常载荷下工作,滑转率δ=25～30％。此时第三档的工作速度为4.1～4.3公里/小时。在同样的土壤条件下,用62B2铁轮进行耕作时,滚动阻力为453公斤。当耕深为15～20厘米
In this paper, harvesting -37 tractors in paddy fields in the Pearl River Delta region of dry farming experiments to study the machine’s transmission system working load. The test shows that when soil specific resistance is between 0.5 and 0.9 kg / cm ~ 2 and soil relative humidity is about 40%, the average rolling resistance of the tractor is 164 kg when it is cultivated with the original 11-38 "rubber tire. At 14-18 cm deep, the average torque of the drive wheels is 744 kg · m and the torque utilization factor is c = 0.783. If the tractor works under normal load, the slip rate δ = 25-30% Of the working speed of 4.1 ~ 4.3 km / h in the same soil conditions, with 62B2 iron wheel farming, the rolling resistance of 453 kg when the cultivation depth of 15 to 20 cm