电液比例控制多缸自适应调平液压系统
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 42pt; TEXT-INDENT: -21pt; mso-list: l0 level1 lfo1; tab-stops: list 42.0pt"><SPAN lang=EN-US style="FONT-SIZE: 16pt; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: 黑体; mso-fareast-font-family: 黑体"><SPAN style="mso-list: Ignore"><FONT face="Times New Roman">一.<SPAN style="FONT: 7pt 'Times New Roman'"> </SPAN></FONT></SPAN></SPAN><SPAN style="FONT-SIZE: 16pt; FONT-FAMILY: 黑体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'">概述</SPAN><SPAN lang=EN-US style="FONT-SIZE: 16pt; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 黑体"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: 32pt; mso-para-margin-left: 2.0gd; mso-char-indent-count: 2.0"><SPAN style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">随着科学的日益进步,航测及遥测的发展,机动灵活的车载测控设备也在逐渐发展起来,但是车载测量设备本身的位置姿态精度对测量结果产生重大影响的现实,对发展该技术起到了较大的限制作用,开发一种能够适应各种地面环境的车载工作平台来解决这一问题是一个较现实的方法。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 16pt; mso-bidi-font-size: 12.0pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: 32pt; mso-para-margin-left: 2.0gd; mso-char-indent-count: 2.0"><SPAN style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">应某单位的要求,我们研制了一种六缸自适应调平液压系统,该系统在电液比例控制条件下,能够在各种地面条件下自动进行车载平台姿态调平,对解决该问题进行了实质性地探讨。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 16pt; mso-bidi-font-size: 12.0pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-SIZE: 16pt; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 黑体"><SPAN style="mso-spacerun: yes"><FONT face="Times New Roman"> </FONT></SPAN></SPAN><SPAN style="FONT-SIZE: 16pt; FONT-FAMILY: 黑体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'">二、液压传动原理</SPAN><SPAN lang=EN-US style="FONT-SIZE: 16pt; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 黑体"><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: 32pt; mso-para-margin-left: 2.0gd; mso-char-indent-count: 2.0"><SPAN style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">该系统采用定量开式液压系统</SPAN><SPAN lang=EN-US style="FONT-SIZE: 16pt; mso-bidi-font-size: 12.0pt"><FONT face="Times New Roman">(</FONT></SPAN><SPAN style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">见图</SPAN><SPAN lang=EN-US style="FONT-SIZE: 16pt; mso-bidi-font-size: 12.0pt"><FONT face="Times New Roman">1)</FONT></SPAN><SPAN style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">,工作压力为</SPAN><SPAN lang=EN-US style="FONT-SIZE: 16pt; mso-bidi-font-size: 12.0pt"><FONT face="Times New Roman">15MPa,</FONT></SPAN><SPAN style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">流量为</SPAN><SPAN lang=EN-US style="FONT-SIZE: 16pt; mso-bidi-font-size: 12.0pt"><FONT face="Times New Roman">22 l/min,</FONT></SPAN><SPAN style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">驱动功率为</SPAN><SPAN lang=EN-US style="FONT-SIZE: 16pt; mso-bidi-font-size: 12.0pt"><FONT face="Times New Roman">7.5kw</FONT></SPAN><SPAN style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 16pt; mso-bidi-font-size: 12.0pt"><o:p></o:p></SPAN></P>
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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: 32pt; mso-para-margin-left: 2.0gd; mso-char-indent-count: 2.0"><SPAN lang=EN-US style="FONT-SIZE: 16pt; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 楷体_GB2312"><o:p><FONT face="Times New Roman"> </FONT></o:p></SPAN></P><BR style="mso-ignore: vglayout" clear=all>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: 32pt; mso-para-margin-left: 2.0gd; mso-char-indent-count: 2.0"><SPAN style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">该系统由车载发电机驱动电动机来拖动定量泵向系统供油,由于车载负载不均匀,为了防止因负载不均匀造成液压缸的双向液控单向阀<SPAN lang=EN-US>(双向液压锁)不能同步打开而影响油缸的运动(尤其在回收工作中,因个别液压缸不动作,可能造成翻车事故),采用带负载敏感压力补偿手动比例复合阀控制六个油缸进行工作,为了保证工作装置长时间的稳定性,在油缸回路中加装了双向液压锁,为了避免在油缸伸缩过程中发生冲击,在油缸回路中还加装了单向节流阀。<o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-SIZE: 16pt; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 黑体"><SPAN style="mso-spacerun: yes"><FONT face="Times New Roman"> </FONT></SPAN></SPAN><SPAN style="FONT-SIZE: 16pt; FONT-FAMILY: 黑体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'">三、工作原理</SPAN><SPAN lang=EN-US style="FONT-SIZE: 16pt; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 黑体"><o:p></o:p></SPAN></P>
<P style="TEXT-INDENT: 32pt"><SPAN style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">液压泵通过车载发电机发电驱动,经精滤后进入负载敏感多路比例复合阀,进入被控油缸。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 16pt; mso-bidi-font-size: 12.0pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 17.95pt; TEXT-INDENT: 32pt; mso-para-margin-left: 1.71gd; mso-char-indent-count: 2.0"><SPAN style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在调平工作时,在车架平台上装有两个方向的角度传感器,对车架平台的姿态进行反馈,通过比例放大器,对比例阀进行加电,由比例换向阀的开度大小决定各液压缸的同步运动速度。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 16pt; mso-bidi-font-size: 12.0pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 17.95pt; TEXT-INDENT: 32pt; mso-para-margin-left: 1.71gd; mso-char-indent-count: 2.0"><SPAN style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">由于地面不平整的必然性,在各支撑液压油路中装有压力继电器,用于各支撑液压缸伸出运动到达地面时向控制器发讯,暂停该液压缸的运动,待六只液压缸均运动到触及地面后,再继续在角度传感器的讯号决定下继续运动到所需要的高度,由高压压力继电器发讯停止液压缸的运动。如此时车架还没有达到所需的调平结果,则角度传感器仍然发讯,令相应的液压缸继续运动。最终实现调平。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 16pt; mso-bidi-font-size: 12.0pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-SIZE: 16pt; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 黑体"><SPAN style="mso-spacerun: yes"><FONT face="Times New Roman"> </FONT></SPAN></SPAN><SPAN style="FONT-SIZE: 16pt; FONT-FAMILY: 黑体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'">四、结论</SPAN><SPAN lang=EN-US style="FONT-SIZE: 16pt; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 黑体"><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><SPAN style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">本系统</SPAN><SPAN style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">在实际应用中,效果较好,获得了用户的认可。调平操作简单方便,由于多路比例复合阀本身还具有遥控功能,该系统还开发了遥控方法。<SPAN lang=EN-US><o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt"><SPAN style="FONT-SIZE: 16pt; FONT-FAMILY: 黑体; mso-bidi-font-size: 12.0pt; mso-hansi-font-family: 宋体">五、应注意的问题<SPAN lang=EN-US><o:p></o:p></SPAN></SPAN></P><SPAN style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">本系统在调试和使用过程中,应注意调整比例阀的压力补偿值应能双向液压锁在偏载情况决定的压力范围内都能正常开启。否则系统将无法正常工作,甚至发生事故。</SPAN>
Re: 电液比例控制多缸自适应调平液压系统
贝贝:图纸没贴上来,我帮你把图纸贴上来吧Re: 电液比例控制多缸自适应调平液压系统
图纸贴不上,我在附件里有完整的内容,只不过是将一些作者信息没有公布 我正需要着方面的资料呢,谢谢了,先收下了,呵呵!:) 非常感谢,很好的资料 谢谢楼主,学习了!我都需要啊
但是我不能下载, 为什么啊???? 好资料,多谢楼主分享! 非常感谢,很好的资料 多谢。我正要看稳定平台资料
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