中鐵隧道集團輪胎式(shi)起(qi)(qi)(qi)重(zhong)(zhong)(zhong)機(ji)是把(ba)起(qi)(qi)(qi)重(zhong)(zhong)(zhong)安裝在(zai)加重(zhong)(zhong)(zhong)型輪胎和(he)輪軸組成(cheng)的特制底盤上(shang)的一種全回(hui)轉(zhuan)式(shi)起(qi)(qi)(qi)重(zhong)(zhong)(zhong)機(ji)，其(qi)上(shang)部(bu)構造與履帶式(shi)起(qi)(qi)(qi)重(zhong)(zhong)(zhong)機(ji)基(ji)本(ben)相同(tong)，為了保(bao)證安裝作業(ye)時機(ji)身(shen)的穩定(ding)性(xing)，起(qi)(qi)(qi)重(zhong)(zhong)(zhong)機(ji)設(she)有(you)四個可(ke)伸(shen)縮(suo)的支(zhi)腿。在(zai)平(ping)(ping)坦(tan)地面(mian)上(shang)可(ke)不用支(zhi)腿進行小起(qi)(qi)(qi)重(zhong)(zhong)(zhong)量吊裝及吊物(wu)低速行駛。它由上(shang)車(che)(che)(che)和(he)下車(che)(che)(che)兩部(bu)分組成(cheng)。上(shang)車(che)(che)(che)為起(qi)(qi)(qi)重(zhong)(zhong)(zhong)作業(ye)部(bu)分，設(she)有(you)動臂、起(qi)(qi)(qi)升(sheng)、變幅、平(ping)(ping)衡重(zhong)(zhong)(zhong)和(he)轉(zhuan)臺等；下車(che)(che)(che)為支(zhi)承(cheng)和(he)行走部(bu)分。上(shang)、下車(che)(che)(che)之間用回(hui)轉(zhuan)支(zhi)承(cheng)連接。吊重(zhong)(zhong)(zhong)時一般(ban)需放下支(zhi)腿，增大(da)支(zhi)承(cheng)面(mian)，并將機(ji)身(shen)調(diao)平(ping)(ping)，以(yi)保(bao)證起(qi)(qi)(qi)重(zhong)(zhong)(zhong)機(ji)的穩定(ding)。
