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Function: _error_handler
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2024-08-01
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Function: _error_handler
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在皮带传动系统中，我们可以看到一个或多个小轮子挂在上面。这种个头不大的小轮子有两个特点：第一它是独立空转的；第二它只在皮带外侧滚动（其他部件的轮子都是挂在皮带内侧）。这个小轮子就是涨紧轮。
因为皮带在运动过程中会产生振动，随着时间的推移，它的弹性也会变差，导致它越拉越长，于是就容易松动脱落。涨紧轮的任务就是去绷紧它，顾名思义，涨紧轮的名字就是这么来的。
涨紧轮在正时系统和附件系统中 起着非常重要的作用，但是我们在平常的使用的过程中，经常会遇到因为涨紧轮故障造成的返修或者大修等，那涨紧轮常见的故障有哪些呢？
涨紧轮的常见故障
(1)张紧轮异常
机械涨紧轮异响：主要的噪音来源是轴承和内部的阻尼机构（弹簧和阻尼块等）。
如果检查张紧轮时出现损坏现象的，需进行更换张紧轮，那一般会出现哪些损坏情况呢？
1.底板断裂
分析：有很大可能是因为安装调整不正确，过度调整，也有可能是与其他零件接触导致。
2.铝件开裂
分析：有可能是安装调整不正确，正时指针没有对准位置，造成的左右撞击。
3.皮带轮断裂
分析：张紧轮安装不正确导致张紧轮倾斜或皮带与张紧轮运行表面不平行。
4.皮带轮变形
分析：张紧轮安装不正确导致张紧轮倾斜或发动机其他部件与发动机安装平面不平行。
5.调节板变形
分析：安装调整不正确，与其他部件接触。
6.弹簧断裂
分析：张紧轮安装错误，导致弹簧长时间处于超负荷工作，弹簧与张紧轮内部零件干涉，疲劳断裂。
(2)轴承抱死
轴承抱死的情况比较少，但是一旦出现抱死情况而未能及时处理突发情况，发动机就会出现严重的后果，轻则正时皮带损坏，重则发动机气门会被活塞顶弯。
分析：一般出现轴承问题主要是因为安装调整不正确，零件结构损伤而断裂后干涉轴承或是发动机运转不平稳，轴承受到的冲击载荷过大。
(2)轮系异响
发动机在运转过程时，有时候会出现一些异常的响声，这时候需要检查传动系统中的各零部件，包括张紧轮、皮带和发电机超越皮带轮（OAP）。
1.轴承失效出现的隆隆声异响或出现刺耳的高频声
分析：检查发动机其他部件是否有异常，再次检查张紧轮轴承是否有异响，检查并更换。
2.张紧轮皮带轮系张力过大，轮系运行产生嗡嗡声或呼叫声
分析：重新调整张紧力。
3.张紧轮皮带轮张力过小，轮系运行产生皮带拍打声
分析：重新调整张紧力。
4.张紧轮运转时张紧臂摆动过大，皮带振动大，产生异响
分析：检查张紧轮是否安装正确，检查发动机其他部件是否有异常，冷机时曲轴与凸轮轴位置正时位置时，检查张紧轮的正时指示位。
5.张紧轮轮系运转时产生敲击声
分析：检查张紧轮挡块处是否有撞击痕迹，重新更换合适的皮带，再次安装调整。
涨紧轮的调整方法
1.首先把内六角工具和拧正时涨紧轮螺器工具准备好，使用内六角工具逆时针旋转正时涨紧器，这时候涨紧器上的指针会出现摆动。
2.当摆动超过涨紧器上的V型记号时拧紧螺栓，需要注意的是不能超过太多，顺时针转动曲轴2圈，各个记号要对准，再使用内六角工具卡住涨紧器。
3.然后把涨紧器螺栓松开，转动六角工具使涨紧器指针对齐张紧器上的V记号（一般是顺时针转），把涨紧器螺栓拧紧，从而完成调整。
来源：网络
（版权归原作者或机构所有）
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Function: _error_handler
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Hangzhou Jingzhou Bearing Co.,Ltd.
Address：Liangzhu Indystrial City Hangzhou
Service hotline：0571-88777186 88777665
Jiangsu Jingzhou Bearing Co., Ltd.
Address：No.19, Yulan Avenue, Xuyi Economic DevelopmentZone, Huai’an City, Jiangsu Province
Service hotline：0517-80817777
Website：www.jzbearing.com
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