Perkins柴油发动机连杆的标准参数3012
Perkins柴油发动机连杆的标准参数3012
Gudgeon pin in bush (A1)
在布什活塞销(A1)
Bore of bush. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55,035 to 55,050 mm (2.1667 to 2.1673 in)
衬套孔。........................................55035至55050毫米(2.1667至2.1673)
(Bush pressed into position and bored to size)
(衬套压入位置,并对尺寸进行钻孔)
Diameter of gudgeon pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54,995 to 55,000 mm (2.1652 to 2.1653 in)
对活塞销直径。..............................54995至55000毫米(2.1652至2.1653)
Clearance (new). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0,035 to 0,055 mm (0.0014 to 0.0022 in)
间隙(新)。........................................0035至0055毫米(0.0014至0.0022)
Permissible worn clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0,067 mm (0.0026 in)
容许磨损间隙。..............................................0067毫米(0.0026英寸)
Bush in small end (A2)
在小的一端(A2)
Bore in connecting rod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60,00 to 60,03 mm (2.3622 to 2.3633 in)
连接杆孔。..................................对60,03毫米。万(2.3622至2.3633)
Diameter of bush . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60,072 to 60,097 mm (2.365 to 2.366 in)
灌木直径。......................................60072至60097毫米(2.365至2.366)
Interference fit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0,042 to 0,097 mm (0.0017 to 0.0038 in)
干涉配合。........................................0042至0097毫米(0.0017至0.0038)
Alignment of connecting rod (A3)
连杆对准(A3)
Parallel alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0,025 mm (0.001 in)
平行排列。......................................................0025毫米(0.001英寸)
(Meas ured between big end and small end, for each 25,40 mm (1.000 in) of test mandrel)
(测量大端和小端,之间的每个25,40毫米(1英寸)测试轴)
Distance between centres . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273,05 to 272,95 mm (10.750 to 10.746 in)
中心之间的距离。..............................273,05到272,95毫米(10.750到10.746)
End-float of big end (A4)
大头端浮动(A4)
End-float. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0,20 to 0,40 mm (0.008 to 0.016 in)
端浮动。..................................................20到1,00毫米(0.008到0.016)
Permissible worn end-float. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0,558 mm (0.022 in)
允许磨损端浮。................................................0558毫米(0.022英寸)
(End-float of each set of two big ends on common c rank pin)
(每一个两端浮动的两端共同的碳引脚)
Clearance on diameter of big end (A5)
对大直径间隙(A5)
Clearance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0,026 to 0,086 mm (0.001 to 0.003 in)
间隙。..............................................0026至0086毫米(0.001至0.003)
(Check that crank pin is within limits of ovality)
(检查曲柄销的限度内,椭圆度)