论文部分内容阅读
东方红—76拖拉机、东方红—60推土机和曙光牌50千瓦发电机组,所用的4125A、4125B、4125C型发动机的供油提前角相同。经我厂试验,其最好的供油提前角应为15°～19°。供油提前角是通过改变油泵齿轮和花键突缘不同螺孔的装配位置来实现的(见图)。油泵齿轮和花键突缘端面上下两排各有七个螺孔,两零件各螺孔中心线相应的相邻夹角相、差1°30′,对正各个相应螺孔装配,可以得到各种不同的供油提前角。规定油泵齿轮第四孔边的记号,对准花键突缘
Dongfanghong -76 tractor, Dongfanghong -60 bulldozer and Shuguang 50-kilowatt generator set, the 4125A, 4125B, 4125C-type engine with the same fuel supply advance. After our factory test, its best fuel supply advance angle should be 15 ° ~ 19 °. Fuel supply advance angle is by changing the pump gear and spline flange screw hole assembly location to achieve (see photo). Oil pump gear and spline flange face up and down the two rows of seven screw holes, two parts of each screw hole center line corresponding to the adjacent angle phase, the difference 1 ° 30 ’, aligning the corresponding screw hole assembly, you can get each Different kinds of fuel supply advance angle. Specify the mark on the fourth hole side of the pump gear to align with the spline flange