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打包机的调压、调速、换向、锁紧和卸载回路介

发布日期: 2019-07-16

打包机

  以尽可能多的去掉相同的多余元件,力求系统简单,元件数量、品种规格较少为设计目标,根据垃圾液压打包机所的工艺要求,并且要求操作方便,工作安全可靠,动作平稳,调整维修方便,设计液压系统原理图如图所示:城市生活垃圾液压打包机的液压系统主要包括调压回路、调速回路、换向回路、锁紧回路和卸载回路组成,各回路工作原理如下:

  液压(ya)(ya)活(huo)塞(sai)(sai)紅加(jia)载(zai)(zai)(zai)系统:液压(ya)(ya)缸(gang)的(de)(de)(de)(de)加(jia)载(zai)(zai)(zai)系统是由(you)电(dian)机带动(dong)柱塞(sai)(sai)粟提供载(zai)(zai)(zai)荷。液压(ya)(ya)紅加(jia)载(zai)(zai)(zai)系统中主要包(bao)括卸(xie)荷回(hui)(hui)路和调速回(hui)(hui)路。在栗的(de)(de)(de)(de)出(chu)油口处(chu)设(she)有(you)(you)压(ya)(ya)力(li)(li)表(biao),其出(chu)口压(ya)(ya)力(li)(li)可被监(jian)测,并且(qie)在出(chu)油口处(chu)还设(she)有(you)(you)先导(dao)式溢流(liu)阀,如果泉的(de)(de)(de)(de)出(chu)口压(ya)(ya)力(li)(li)髙于设(she)定压(ya)(ya)力(li)(li)时(shi),电(dian)磁铁得(de)电(dian),栗的(de)(de)(de)(de)压(ya)(ya)力(li)(li)得(de)以(yi)卸(xie)载(zai)(zai)(zai)。通过(guo)三位(wei)四通换向阀控(kong)制液压(ya)(ya)虹的(de)(de)(de)(de)前进后退。在液压(ya)(ya)油虹的(de)(de)(de)(de)无杆社进油口处(chu)设(she)有(you)(you)安全(quan)阀和压(ya)(ya)力(li)(li)表(biao),如果进油压(ya)(ya)力(li)(li)过(guo)高,安全(quan)阀会(hui)自动(dong)进行压(ya)(ya)力(li)(li)卸(xie)载(zai)(zai)(zai)。在回(hui)(hui)油路上设(she)置有(you)(you)冷却器,可以(yi)有(you)(you)效(xiao)的(de)(de)(de)(de)控(kong)制回(hui)(hui)油的(de)(de)(de)(de)温度。

  收缩(suo)(suo)(suo)赶加(jia)载(zai)系统(tong):收缩(suo)(suo)(suo)缸加(jia)载(zai)系统(tong)的(de)(de)加(jia)载(zai)回路和(he)液(ye)压(ya)紅使(shi)用(yong)的(de)(de)是同一(yi)柱塞粟。电磁(ci)铁(tie)通(tong)电,三位(wei)(wei)四通(tong)换(huan)向(xiang)(xiang)阀(fa)的(de)(de)右(you)位(wei)(wei)接(jie)通(tong),压(ya)力油经液(ye)控单(dan)向(xiang)(xiang)阀(fa)和(he)调速阀(fa)达到收缩(suo)(suo)(suo)赶。在(zai)捆(kun)(kun)线机构(gou)完成(cheng)捆(kun)(kun)线时(shi),电磁(ci)铁(tie)得电,换(huan)向(xiang)(xiang)阀(fa)左位(wei)(wei)得以(yi)接(jie)通(tong),活塞杆后退。在(zai)收缩(suo)(suo)(suo)回路中设有液(ye)压(ya)锁,这就可(ke)以(yi)使(shi)收缩(suo)(suo)(suo)虹(hong)准备的(de)(de)停(ting)留在(zai)所(suo)需的(de)(de)位(wei)(wei)置,也(ye)就是进(jin)行保压(ya)捆(kun)(kun)线。收缩(suo)(suo)(suo)油紅的(de)(de)无肝进(jin)油口处也(ye)设置了压(ya)力表和(he)安全阀(fa),在(zai)压(ya)力过大(da)时(shi)进(jin)行卸载(zai)。

  防塞(sai)(sai)、剪切(qie)、推(tui)线(xian)液压(ya)(ya)系统:剪切(qie)、推(tui)线(xian)和防塞(sai)(sai)液压(ya)(ya)虹都是由(you)同一(yi)电(dian)(dian)(dian)机带动齿轮泵进行(xing)(xing)加(jia)载。在(zai)齿轮栗的(de)(de)出口(kou)处设置有(you)油表(biao)和先导(dao)式溢(yi)流(liu)阀(fa),电(dian)(dian)(dian)磁(ci)铁得(de)(de)(de)电(dian)(dian)(dian)时(shi)(shi),溢(yi)流(liu)阀(fa)的(de)(de)外控口(kou)和油箱连(lian)接(jie),齿轮泵得(de)(de)(de)以(yi)(yi)卸载。在(zai)由(you)传动带一(yi)次(ci)性(xing)加(jia)完垃(la)圾(ji)后(hou),电(dian)(dian)(dian)磁(ci)阀(fa)通(tong)(tong)(tong)(tong)(tong)电(dian)(dian)(dian),三位四通(tong)(tong)(tong)(tong)(tong)换(huan)向阀(fa)的(de)(de)右(you)位得(de)(de)(de)以(yi)(yi)接(jie)通(tong)(tong)(tong)(tong)(tong),液压(ya)(ya)袖进入(ru)防塞(sai)(sai)虹的(de)(de)无杆(gan)腔(qiang),推(tui)动压(ya)(ya)板(ban)对留在(zai)加(jia)料口(kou)的(de)(de)垃(la)圾(ji)进行(xing)(xing)液压(ya)(ya)清理,接(jie)通(tong)(tong)(tong)(tong)(tong)后(hou)油缸回位。在(zai)液压(ya)(ya)活塞(sai)(sai)把垃(la)圾(ji)推(tui)入(ru)收缩(suo)(suo)口(kou)区内时(shi)(shi),检测(ce)到垃(la)圾(ji)打包的(de)(de)长度到达所(suo)需值,电(dian)(dian)(dian)磁(ci)铁通(tong)(tong)(tong)(tong)(tong)电(dian)(dian)(dian),使(shi)(shi)得(de)(de)(de)三位四通(tong)(tong)(tong)(tong)(tong)换(huan)向阀(fa)右(you)位接(jie)通(tong)(tong)(tong)(tong)(tong),液压(ya)(ya)油通(tong)(tong)(tong)(tong)(tong)过调(diao)速阀(fa)迸入(ru)两(liang)个推(tui)线(xian)液压(ya)(ya)虹的(de)(de)有(you)杆(gan)腔(qiang),油紅回缩(suo)(suo),拉动推(tui)线(xian)机构通(tong)(tong)(tong)(tong)(tong)过推(tui)线(xian)腔(qiang)。在(zai)回路上(shang)串联两(liang)个单(dan)向节流(liu)阀(fa),使(shi)(shi)得(de)(de)(de)液压(ya)(ya)油的(de)(de)流(liu)速得(de)(de)(de)以(yi)(yi)控制,从(cong)而保证了(le)活塞(sai)(sai)运(yun)动的(de)(de)平稳性(xing),同时(shi)(shi)也为回油腔(qiang)提供(gong)了(le)背压(ya)(ya)。推(tui)线(xian)结(jie)束后(hou),通(tong)(tong)(tong)(tong)(tong)电(dian)(dian)(dian)使(shi)(shi)得(de)(de)(de)三位四通(tong)(tong)(tong)(tong)(tong)换(huan)向阀(fa)右(you)位接(jie)通(tong)(tong)(tong)(tong)(tong),液压(ya)(ya)油流(liu)经调(diao)速阀(fa)使(shi)(shi)剪切(qie)紅伸出,带动剪切(qie)刀片进行(xing)(xing)剪切(qie)。

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