Crankshaft - Steel Crankshaft
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| 图 1 | g01338264 |
典型示例 | |
(1) 曲轴
检查曲轴最大轴向间隙 ... 0.51 mm (0.0201 in)
(2) 止推垫圈
- 标准厚度 ... 2.26 至 2.31 mm (0.089 至 0.091 in)
- 加大尺寸厚度 ... 2.45 至 2.50 mm (0.097 至 0.098 in)
(3) 曲轴齿轮
安装到曲轴上的齿轮的最大允许温度 ... 180 °C (356 °F)
注: 齿轮安装到曲轴上后，正时标记朝向曲轴外侧。
注: 所有涡轮增压式发动机及涡轮增压后冷式发动机曲轴都为 硝基渗碳处理。如果不能进行硝基渗碳处理，曲轴还可以进行 20 小时的氮化处理。曲轴加工后必须进行重淬火处理。 加工前后必须检查曲轴上是否有裂纹。自然吸气发动机配置感应淬火曲轴。
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| 图 2 | g01338265 |
注: 请参阅图 2，以便使用表 1。
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| 曲轴轴颈的缩小尺寸直径 | |||
| 数量 | 0.25 mm (0.010 in) |
0.51 mm (0.020 in) |
0.76 mm (0.030 in) |
| 1 | 75.905 至 75.926 mm (2.9884 至 2.9892 in) |
75.651 至 75.672 mm (2.9784 至 2.9792 in) |
75.397 至 75.418 mm (2.9684 至 2.9692 in) |
| 2 | 63.216 至 63.236 mm (2.4888 至 2.4896 in) |
62.962 至 62.982 mm (2.4788 至 2.4796 in) |
62.708 至 62.728 mm (2.4688 至 2.4696 in) |
| 3 | 39.47 mm (1.5539 in) 最大 |
无 | 无 |
| 4 | 37.44 mm (1.4740 in) 最大 |
无 | 无 |
| 5 | 44.68 mm (1.7591 in) 最大 |
无 | 无 |
| 6 | 40.55 mm (1.5965 in) 最大 |
无 | 无 |
| 7 | 不要加工该直径。 | 无 | 无 |
| 8 | 3.68 mm (0.1449 in) 至 3.96 mm (0.1559 in) |
无 | 无 |
| 9 | 4.36 至 4.60 mm (0.1717 至 0.1811 in) |
无 | 无 |
请参阅表 2 以了解曲轴轴颈的最大跳动量。
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| 轴颈 | 过度跳动量 |
| (1) | 安装 |
| (2) | 0.08 mm (0.0031 in) |
| (3) | 0.15 mm (0.0059 in) |
| (4) | 0.08 mm (0.0031 in) |
| (5) | 安装 |
请参阅技术参数, "连杆轴承轴颈"以获得更多有关连杆轴承轴颈以及连杆轴承的信息。
请参阅技术参数, "主轴承轴颈"以获得有关主轴承轴颈及主轴承的信息。
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