Three - point support gear boxes for cranes 起重機用三支點減速器
The main shuchural features of the new electric single - girder overhead travelling crane presented in this paper is as follows : using a special gisder section to provide simple production technology and light weight ; dopting hinged connection at one end between main glrders and end carrages instead of the rigid connection at both ends , eliminating the three - point supporting problem with the crane and thus improving the travelling perfomance ; extending crane wheels life contributed to the combination of no - flange crane wheels and horizontal rollers 提供種生產(chǎn)工藝簡單、自重輕的主梁截面,并將單梁起重機主、端梁的剛性連接改為端用鉸接連接,解決了在制造和軌道安裝時因誤差而造成的大車運行三條腿現(xiàn)象,提高了運行性能;用可調(diào)大車運行水平輪中心距的設(shè)計,代替帶輪緣的大車輪,提高大車輪的使用壽命。