卧式(shi)振(zhen)动(dong)电(dian)(dian)(dian)(dian)(dian)(dian)机(ji)在转(zhuan)子轴(zhou)两端各安装(zhuang)一(yi)(yi)组可调偏(pian)心(xin)块，利用轴(zhou)及偏(pian)心(xin)块高速旋(xuan)转(zhuan)产(chan)生的(de)(de)离心(xin)力(li)(li)得(de)到激(ji)振(zhen)力(li)(li)。振(zhen)动(dong)电(dian)(dian)(dian)(dian)(dian)(dian)机(ji)广泛的(de)(de)应用在水(shui)电(dian)(dian)(dian)(dian)(dian)(dian)建设、火力(li)(li)发电(dian)(dian)(dian)(dian)(dian)(dian)、冶金、轻工等工业部(bu)门。振(zhen)动(dong)电(dian)(dian)(dian)(dian)(dian)(dian)机(ji)振(zhen)动(dong)频率范围(wei)大(da)，只有(you)(you)激(ji)振(zhen)动(dong)力(li)(li)与功率配合(he)得(de)当才能(neng)降(jiang)(jiang)低机(ji)械噪音。卧式(shi)振(zhen)动(dong)电(dian)(dian)(dian)(dian)(dian)(dian)机(ji)分(fen)卧装(zhuang)和(he)竖(shu)装(zhuang)两种(zhong)。 卧式(shi)振(zhen)动(dong)电(dian)(dian)(dian)(dian)(dian)(dian)机(ji)从底脚输出功率。振(zhen)动(dong)电(dian)(dian)(dian)(dian)(dian)(dian)机(ji)的(de)(de)底脚安装(zhuang)在振(zhen)初(chu)机(ji)耻，产(chan)生围(wei)绕电(dian)(dian)(dian)(dian)(dian)(dian)机(ji)转(zhuan)轴(zhou)的(de)(de)旋(xuan)转(zhuan)离心(xin)激(ji)振(zhen)力(li)(li)。卧式(shi)振(zhen)动(dong)电(dian)(dian)(dian)(dian)(dian)(dian)机(ji)的(de)(de)底脚有(you)(you)两种(zhong)结(jie)构(gou)(gou)(gou)：一(yi)(yi)种(zhong)是(shi)与端盖连在一(yi)(yi)起(qi)的(de)(de)，另一(yi)(yi)种(zhong)是(shi)与机(ji)壳连在一(yi)(yi)起(qi)的(de)(de)，前者结(jie)构(gou)(gou)(gou)受(shou)力(li)(li)较好，可节约(yue)材料，降(jiang)(jiang)低造价。卧式(shi)卧装(zhuang)振(zhen)动(dong)电(dian)(dian)(dian)(dian)(dian)(dian)机(ji)通常(chang)为双轴(zhou)承结(jie)构(gou)(gou)(gou)，竖(shu)装(zhuang)振(zhen)动(dong)电(dian)(dian)(dian)(dian)(dian)(dian)机(ji)为三轴(zhou)承结(jie)构(gou)(gou)(gou)。大(da)吨位的(de)(de)卧式(shi)振(zhen)动(dong)电(dian)(dian)(dian)(dian)(dian)(dian)机(ji)仍柒用与轨壳连在一(yi)(yi)起(qi)的(de)(de)结(jie)构(gou)(gou)(gou)型式(shi)。

　振(zhen)动(dong)电(dian)(dian)(dian)机(ji)(ji)的(de)(de)(de)结(jie)(jie)构(gou)由两(liang)部(bu)分组成(cheng)：一是专门设计(ji)的(de)(de)(de)驱动(dong)三相(xiang)异步电(dian)(dian)(dian)动(dong)机(ji)(ji)或单相(xiang)电(dian)(dian)(dian)动(dong)机(ji)(ji)部(bu)分，其原理与(yu)普通电(dian)(dian)(dian)机(ji)(ji)一样(yang)，另一部(bu)分是具有(you)偏心(xin)质量，并可调节偏心(xin)距的(de)(de)(de)激振(zhen)机(ji)(ji)械部(bu)分。底(di)脚连(lian)在(zai)端盖(gai)上的(de)(de)(de)卧(wo)式振(zhen)动(dong)电(dian)(dian)(dian)机(ji)(ji)结(jie)(jie)构(gou)如图(tu)《卧(wo)式振(zhen)动(dong)电(dian)(dian)(dian)机(ji)(ji)结(jie)(jie)构(gou)》所示。这类振(zhen)动(dong)电(dian)(dian)(dian)机(ji)(ji)的(de)(de)(de)结(jie)(jie)构(gou)方面(mian)，具有(you)下述特(te)点：(1)机(ji)(ji)壳(qiao)采用全封(feng)闭型式，可经常工作(zuo)在(zai)粉(fen)尘环(huan)境中，机(ji)(ji)壳(qiao)上面(mian)带有(you)环(huan)形散热筋，除了(le)增加散热性能(neng)(neng)外，还能(neng)(neng)加强(qiang)(qiang)机(ji)(ji)壳(qiao)的(de)(de)(de)机(ji)(ji)械强(qiang)(qiang)度。(2)能(neng)(neng)承受输出的(de)(de)(de)激振(zhen)力，必(bi)须强(qiang)(qiang)固(gu)底(di)脚(卧(wo)式)或凸缘(立式)。各连(lian)接(jie)部(bu)分的(de)(de)(de)零(ling)部(bu)件的(de)(de)(de)结(jie)(jie)构(gou)和紧固(gu)零(ling)件，一律要(yao)求防松。(3)为了(le)保证主(zhu)(zhu)轴(zhou)(zhou)刚度，一般把主(zhu)(zhu)轴(zhou)(zhou)设计(ji)成(cheng)短而粗，以适应主(zhu)(zhu)轴(zhou)(zhou)两(liang)端承受强(qiang)(qiang)大离心(xin)力的(de)(de)(de)需要(yao)。因此，整机(ji)(ji)外形也为短而粗。(4)须用重型耐振(zhen)轴(zhou)(zhou)承，用以承受强(qiang)(qiang)大径(jing)向载荷，传递激振(zhen)动(dong)力。(5)要(yao)求电(dian)(dian)(dian)机(ji)(ji)线圈、引出电(dian)(dian)(dian)缆和接(jie)线盒结(jie)(jie)构(gou)，必(bi)须具备耐振(zhen)能(neng)(neng)力。