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汽车起动机液压系统的工作原理解析

武汉星兴达液压气动设备有限公司专业生产液压站、液压油缸、轴向柱塞泵、叶片油泵、齿轮油泵、- 、液压阀、液压元件、气动阀、气缸、气动三联件、气动元件.本公司1992成立以后，以设计、生产、代理、经营气动元件、液压元件、液压设备等为主导产品的股份制造企业，也是华中地区同行业首家通过ISO9001：本公司产品质量管理体系一次性复审合格的企业，具有很强的产品设计、开发和生产能力。近几年来，通过引进国内外先进的生产加工技术、消化和改进，使本公司的产品在不断更新换代。

下面由我公司为大家介绍一下汽车起动机液压方面的知识吧：

1.吊臂变幅(即调整吊臂的起落角度)

首先将换向阀的右位接人系统.然后扳动换向阀的手柄，分别使它的左位和右位接人液压系统（液压泵站），即可实现吊臂的增幅与减幅。变幅时的油路与伸缩时相似.不再赘述。

增、减幅到位后.换向阀回复中位。

2.升降重物

重物的升降是由一个大转矩-带动卷扬机实现的。液压系统（液压系统武汉星兴达厂家 液压系统设计时会用到的液压系统元件：液压齿轮泵、液压柱塞泵、液压叶片泵、压力阀、风冷、变量柱塞泵、电磁溢流阀、油管、油箱、电机、节流阀、液压泵、内齿轮泵、电磁阀、压力表、溢流阀、接头、变量叶片泵、定量叶片泵、电磁换向阀、外齿轮泵、液压油泵、液压阀等）中的-的转速(起吊速度)通过改变汽车发动机的转速调节。由于-的泄漏比液压缸大得多.当重物吊在空中时，尽管油路中设有平衡阀，仍有可能产生”溜车”的现象。为此.在升降马达上设有制动缸.以便在马达停转时采用制动器将其锁住。

起吊时.扳动手柄.使换向阀的右位、换向阀的左位接人系统.油液经单向节流阀进人制动器液压缸下腔.制动器松开.同时.油液进人升降马达左油口.马达正转，重物升起.其油路为:

进油路:液压泵~换向阀右位~换向阀中位~换向阀左位~平衡阀~升降马达左油口。

回油路:升降马达右油口~换向阀左位~油箱。

放下重物时.扳动手柄.将换向阀和的右位接人系统.制动器松开.油液同时进人升降马达的右油口.马达反转，重物放下。其油路为:

20V2A   叶片泵
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2520V双联    
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