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å›?-1所½Cºæ˜¯ä¸€¿Ué©±åŠ¨å·¥ä½œå°çš„液压传动系¾lŸï¼Œå®ƒç”±æ²¹ç®±ã€æ×o油器、液压æ܇、溢‹¹é˜€ã€å¼€åœé˜€ã€èŠ‚‹¹é˜€ã€æ¢å‘阀、液压çŽ×以及˜qžæŽ¥˜q™äº›å…ƒäšg的æÑa½Ž¡ã€æŽ¥å¤´ç»„成。其工作原理如下åQšæ¶²åŽ‹æ܇ç”Þq”µåŠ¨æœºé©±åŠ¨åŽï¼Œä»ŽæÑa½Ž×ƒ¸­å¸æÑaåQŒæÑa液经滤æÑa器进入液压æ܇åQŒåœ¨å¦‚图1-1(a)所½CºçŠ¶æ€ä¸‹åQŒæÑa液在泵腔中从入口低压到æ܇出口高压åQŒé€šè¿‡å¼€åœé˜€ã€èŠ‚‹¹é˜€å’Œæ¢å‘阀˜q›å…¥æ¶²åŽ‹¾~¸å·¦è…”,推动‹zÕd¡žä½¿å·¥ä½œå°å‘右¿UÕdŠ¨ã€‚è¿™æ—Óž¼Œæ¶²åŽ‹¾~¸å³è…”çš„æ²ÒŽ¶²¾læ¢å‘阀和回油管6排回油箱ã€?br /> <p>     å›?-1 机床工作台液压系¾lŸå·¥ä½œåŽŸç†å›¾ </p> <p> <img src="/uploads/image/20200527/20200527091547_8158.jpg" alt="挖掘机维修——液压传动的基本原理åQˆä¸€åQ? width="300" height="345" title="挖掘机维修——液压传动的基本原理åQˆä¸€åQ? align="" /> </p>     1—工作台;2—液压çŽ×;3—活å¡?4—换向手æŸ?5—换向阀;6åQŒã€€8åQŒã€€16—回油管;7—节‹¹é˜€;9—开停手æŸ?10—开停阀;11—压力管;12—压力支½Ž?13—溢‹¹é˜€;14—钢ç?15—弹½?17—液压æ܇;18—æ×o油器;19—æÑa½Ž?br />     如果ž®†æ¢å‘阀手柄转换成如å›?-1(b)所½CºçŠ¶æ€ï¼Œåˆ™æ܇输出的æÑa液将¾lè¿‡å¼€åœé˜€ã€èŠ‚‹¹é˜€å’Œæ¢å‘阀˜q›å…¥æ¶²åŽ‹¾~¸å³è…”推动活塞ä‹É工作台向左移动,òq¶ä‹É液压¾~¸å·¦è…”çš„æ²ÒŽ¶²¾læ¢å‘阀和回油管6排回油箱ã€?br />     工作台的¿UÕdŠ¨é€Ÿåº¦æ˜¯é€šè¿‡èŠ‚流阀来调节的。当节流阀开大时åQŒè¿›å…¥æ¶²åŽ‹çŽ×的æÑa量增多,工作台的¿UÕdŠ¨é€Ÿåº¦å¢žå¤§;当节‹¹é˜€å…›_°æ—Óž¼Œ˜q›å…¥æ¶²åŽ‹¾~¸çš„沚w‡å‡å°åQŒå·¥ä½œå°çš„移动速度减小。äؓ了克服移动工作台时所受到的各¿Ué˜»åŠ›å³è´Ÿè²åQŒæ¶²åŽ‹çŽ×必需产生一个èƒö够大的推力,˜q™ä¸ªæŽ¨åŠ›æ˜¯ç”±æ¶²åŽ‹¾~怸­çš„æÑa液压力äñ”生的。要克服的阻力越大,¾~怸­çš„æÑa液压力越é«?反之压力ž®Þp¶Šä½Žã€‚è¿™¿UçŽ°è±¡è¯´æ˜Žäº†æ¶²åŽ‹ä¼ åŠ¨çš„一个基本原理——压力决定于负蝲ã€?br />     从上面这个简单的例子中可以æ€È»“如下åQ?br />     ①液压传动是以液体作为工作介质来传递动力的ã€?br />     ②液压传动用液体的压力能来传递动力,它与利用液体动能的液力传动是不相同的ã€?br />     ③液压传动中的工作介质是在受控制、受调节的状态下˜q›è¡Œå·¥ä½œçš„,因此液压传动和液压控制常帔Rš¾ä»¥æˆªç„¶åˆ†å¼€ã€?br />     ④液压传动必™åÀL»¡­‘›_®ƒæ‰€é©±åŠ¨çš„运动部件在力和速度斚w¢æå‡ºçš„要求ã€?br />     2.液压传动的基本组æˆ?br />     从机床工作台液压¾pȝ»Ÿçš„工作过½E‹å¯ä»¥çœ‹å‡ºï¼Œä¸€ä¸ªå®Œæ•´çš„、能够正常工作的液压¾pȝ»ŸåQŒåº”该由以下5个主要部分组成ã€?br />     (1)能源装置(动力元äšg)<br />     是一¿Uä¾›¾l™æ¶²åŽ‹ç³»¾lŸåŽ‹åŠ›æÑaåQŒæŠŠæœºæ¢°èƒ½è{换成液压能的装置。最常见的åŞ式是液压泵,其作用是供给液压¾pȝ»ŸåŽ‹åŠ›æ²V€?br />     (2)执行装置(执行元äšg)<br />     是一¿UæŠŠæ¶²åŽ‹èƒ½è{换成机械能以驱动工作机构的装¾|®ã€‚其形式有做直线˜qåŠ¨çš„液压çŽ×åQŒæœ‰åšå›žè½¬è¿åŠ¨çš„液压马达åQŒä¹Ÿæœ‰åšå¾€å¤æ‘†åŠ¨çš„摆动马达(摆动¾~?åQŒå®ƒä»¬åˆ¿UîCؓ液压¾pȝ»Ÿçš„执行元件ã€?br />     (3)控制调节装置(控制元äšg)<br />     是一¿Uå¯¹¾pȝ»Ÿä¸­çš„压力、流量或‹¹åŠ¨æ–¹å‘˜q›è¡ŒæŽ§åˆ¶æˆ–调节的装置。如溢流阀、节‹¹é˜€ã€æ¢å‘阀和开停阀½{‰å…ƒä»Óž¼Œ˜q™äº›å…ƒäšg的不同组合åŞ成了不同功能的液压系¾lŸã€?br />     (4)辅助装置(辅助元äšg)<br />     除上˜q?部分之外的其他装¾|®ï¼Œä¾‹å¦‚油箱、æ×o油器和æÑa½Ž¡ç­‰ã€‚它们对保证¾pȝ»Ÿæ­£å¸¸å·¥ä½œæ˜¯å¿…不可ž®‘çš„ã€?br />     (5)工作介质<br />     传递能量的‹¹ä½“åQŒå³æ¶²åŽ‹æ²¹ç­‰ã€?br /> <div> <br /> </div></p><br /> </div> <div class="newArtiNext mt10"><div>上一æ?<a href="322.html">挖掘机维修厂——液压传动的基本原理åQˆäºŒåQ?/a></div> <div>下一æ?<a href="320.html">彬州ž®æ¾æŒ–掘机维修回转速度慢PC270LC-6原因分析</a></div> </div> <div class="tag">相关标签åQ?a href="/download/">挖掘机维ä¿?/a>,<a href="/news/wjjwx">挖掘æœÞZ¿®ç?/a>,<a href="/about/about5.html">挖掘机维修厂</a></div> <div class="crumb mt15"> <span class="fl font_w fb fs22">相关新闻<b class="fs14 fn font_i ml5">RELATED NEWS</b></span> </div> <div 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