車輪組定義：車輪與軸、軸承和軸承箱等組成的機械設備。

車輪(lun)(lun)組用(yong)途：車輪(lun)(lun)是用(yong)來支(zhi)承(cheng)起重機(ji)和載荷，并在軌道(dao)上使起重機(ji)往復行(xing)駛運行(xing)的(de)(de)裝(zhuang)置。車輪(lun)(lun)主要(yao)損傷的(de)(de)形式是磨損、硬化(hua)層壓(ya)碎(sui)和點蝕(shi)。車輪(lun)(lun)的(de)(de)材(cai)料一般采用(yong)ZG430-640鑄鋼。為了提高車輪(lun)(lun)表面(mian)(mian)(mian)的(de)(de)耐(nai)磨強度(du)(du)和壽命，踏面(mian)(mian)(mian)應進(jin)行(xing)表面(mian)(mian)(mian)熱處(chu)理(li)，要(yao)求表面(mian)(mian)(mian)硬度(du)(du)為HB300-350，淬火深(shen)度(du)(du)不少于20mm.

起重(zhong)(zhong)(zhong)機車輪組：起重(zhong)(zhong)(zhong)機運行機構(gou)車輪的水(shui)平(ping)偏(pian)斜(xie)值是起重(zhong)(zhong)(zhong)機重(zhong)(zhong)(zhong)要的技術(shu)參數，偏(pian)斜(xie)值超差會造成(cheng)啃軌，增大運行阻(zu)力，產生振動和(he)噪音，加劇軌道和(he)車輪磨(mo)損，大大降(jiang)低起重(zhong)(zhong)(zhong)機使用(yong)壽命，所以各類起重(zhong)(zhong)(zhong)機制造技術(shu)條件都(dou)要對車輪水(shui)平(ping)偏(pian)斜(xie)規定(ding)允許(xu)的數值.

車(che)輪組(zu)結構(gou)(gou)：應(ying)用中控制運行機(ji)構(gou)(gou)車(che)輪水(shui)平偏(pian)斜值主要是(shi)根(gen)據不(bu)同的產品結構(gou)(gou)采取相(xiang)應(ying)的技(ji)術(shu)措(cuo)施。比較常用、工藝(yi)措(cuo)施也(ye)相(xiang)對簡單的設計結構(gou)(gou)是(shi)：將車(che)輪裝配到支架上組(zu)成車(che)輪組(zu)，例(li)如角型軸承箱車(che)輪組(zu)和臺車(che)式(shi)45°剖分軸承箱車(che)輪組(zu)，在起重(zhong)機(ji)主結構(gou)(gou)上，安裝調整車(che)輪水(shui)平偏(pian)斜合適后固(gu)定。