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<h1 class="h1">康明斯机油泵拆卸顺序和齿轮间隙测量</span></h1>
<div class="text">发布来源：康柴（深圳）电力技术有限公司　　发布日期: 2025-12-25　　访问量:13</div>
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<p>摘要：润滑系统是否能保证发电机工作时有良好的润滑要素，虽然与油道是否畅通、滤清器是否发挥作用等条件有关，但较主要的并起决定功能的是机油泵的性能是否良好。在正常情形下，机油泵由于润滑因素较好，各种损伤速度还是比较慢的；但经过长期操作后，齿轮端面间隙和齿面、轴颈与轴承孔<a href="http://www.gdkmsfdj.com" target="_blank">康明斯发电机厂家电话</a>、泵体和泵壳内壁也会出现不同程度的磨损现象。随着损伤的加剧，各种配合间隙增大，当损伤量达到一定限度时，就会致使供油量降低，供油压力下降等。</p><p>&nbsp; &nbsp; &nbsp; &nbsp;油压低，供油不足，发动机出现异响，甚至造成研瓦和研轴等故障。</p><p>&nbsp; &nbsp; &nbsp; 发生起因是机油泵流量低， 造成机油泵流量低可能是限压阀开启压力点早或内外转子、转子与泵体，泵盖与转子间隙过度。有时内转 子与轴连接不牢， 轴转而内转子时转时不转也是造成机油泵流量低的 因由。</p><p>&nbsp; &nbsp; &nbsp; 油压高将使发动机容量受到损失，影响密封产生漏油情形。</p><p>&nbsp; &nbsp; &nbsp; 当压力偏高时，还会损坏机油滤器滤清器，使机油得不到过滤。产生油压高的原由是使机油泵限压阀开启晚或未开启， 未能起到调正出油口压力的用途。 造成限压阀开启晚或无法着火的详细缘由是柱塞在孔内运动不灵活。柱塞与孔的间隙小，表面粗糙度低，或柱塞孔有锥 度等都可能危害到限压阀开启，造成机油压力高。机体油道堵塞，滤 清器堵塞也会造成机油压力高。 从机油泵易损的损坏中可以看出机油泵的故障都与限压阀有关， 所以验收时应特别注意<a href="http://www.gdkmsfdj.com" target="_blank">康明斯发电机组厂家</a>。</p><p>&nbsp; &nbsp; &nbsp; 值得注意的是限压阀中柱塞在柱塞孔的灵活性有直接关系， 在验收时要重点查验一下柱塞的粗糙度和配合孔的间 隙，确保柱塞在孔内运动灵活性。</p><p>由于机型不同，机油泵安装的主要位置也有一定的区别，大部分机型应先拆掉油底壳后才能拆掉机油泵，有的车型机油泵装在缸体的前端或后端，分解机油泵时需要分解许多零部件。</p><p>11、查看内、外转子之间的径向间隙，标准值为0. 0 2～0. 16 mm;维修极限为0. 20mm。如果间隙超过维修极限，应替换内、外转子。</p><p>12、检验泵壳与转子之间的轴向间隙，标准值为0. 02～0. 07mm;维修极限为0. 12mm。如果间隙超过检修极限，应更换内、外转子组或泵壳。</p><p>13、检查泵壳与外转子间的径向间隙，如图64所示，标准值为0. 10～0. 19mm;维修极限为0. 21mm。如果间隙超过维修极限，应更换内、外转子组或泵壳。</p><p>&nbsp; &nbsp; &nbsp; 齿轮啮合间隙的增大，是由于机油泵齿轮牙齿相互摩擦造成的。</p><p>&nbsp; &nbsp; &nbsp; 其检验手段是：取下泵盖，用厚薄规在主、被动齿轮啮合互成120°处分三点进行测定检验两齿之间的间隙。机油泵主动齿轮与被动齿轮的啮合间隙正常值通常为0.15~0.35mm，各机型均有明确规定，例如：四缸柴油发电机为0.03~0.082mm，较大不超过0.15mm；如果齿轮啮合间隙超过较大允许限度，应成对替换新齿轮。</p><p>&nbsp; &nbsp; &nbsp; 机油泵泵盖作业面经磨耗后会出现凹陷，此凹陷不能超过0.05mm，机油泵盖平面度查看策略是用厚薄规与钢板尺配合测定。把钢板尺侧立于泵盖作业面上，然后用。石兰工作面与钢板尺之间的间隙。若超过规定值，将机油泵泵盖放在玻璃板或平板上用气门砂磨平即可。</p><p>&nbsp; &nbsp; &nbsp; 机油泵主、被动齿轮端面与泵盖的间隙为端面间隙。端面间隙增大具体是由于齿轮在轴向方向上与泵盖发生摩擦造成的。</p><p>&nbsp; &nbsp; &nbsp; 用百分表查验机油泵轴与轴承的间隙，当此间隙超限度时，可换新轴套修理。若从动轴明显的单面磨耗，可将其压出，将磨损面调换1800再装入继续操作；主动轴端隙(轴向间隙)的检查可用塞尺测量传动齿轮与泵壳尾端的间隙，若超限，可在泵壳尾端焊修或加垫片;可用百分表测定到的泵轴的弯曲变形不应超过0. 06mm，否则应进行校直。</p><p>&nbsp; &nbsp; &nbsp; &nbsp;操作千分尺对外转子的厚度和外径及内转子的厚度进行检测。</p><p>&nbsp; &nbsp; &nbsp; 对于转子式机油泵，在装配之前，使内转子和外转子的冲模标记对齐。</p><p>5、涂抹液态密封胶后，5 min内应装配零件。如果超过5min，则应去掉原来的液态密封胶，重新涂抹。</p><p>7、在主轴和平衡轴的油封唇上涂抹润滑脂，然后将机油泵的内转子装配到主轴上。安放好机油泵后，处置掉曲轴和平衡轴上多余的油脂，然后检查油封唇边有无变形。</p><p>8、对于齿轮泵的测量时，用直尺与塞尺先测量轴向间端(端间隙)和测定齿顶与壳内壳之间的间隙，若间隙超过规定轴时应先机油泵总成。</p><p>11、为了保证机油泵具有能从机油盘抽油的足够吸力，必须对机油泵进行初注。讲解操作凡土林或Lubriplat eTM 做机油泵初注。装配时给泵里加机油比较困难。凡士林或其他石油基润滑脂可以使泵内生成起动油流所需的吸力。用凡士林填充泵内的空腔后，可操作新O 形环或密封圈将机油泵安装就位。确认在往泵上装吸油管时，已经用密封垫或O形环做了准确的密封。</p><p>&nbsp; &nbsp; &nbsp; 机油泵是一种比较精密的装备，无法长时间在发烫、低温、震动等极端环境中运行。因此，在使用时需要注意环境条件，避免机油泵受损<a href="http://www.gdkmsfdj.com" target="_blank">东风康明斯发电机官网</a>。以上所述内容是针对机油泵解体、修理与安装工艺的参考内容，仅供参考。在进行机油泵修理和维护使用时，请务必严格按照cummins柴油发电机组的检修手册和相关规范进行使用，确保工作安全和品质。</p></div><a href="http://www.gdkmsfdj.com/" target="_blank">http://www.gdkmsfdj.com</a>
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