Gantry crane parts reducer overhaul disassembly

      Single girder  bridge gantry crane  parts reducer demolition if the whole same model, with the transmission ratio gearbox spare parts, we have corrupted the entire gearbox can be replaced. Remove the speed reducer shaft, respectively, the driven shaft connecting bolts, making reducer and transmission disengaged, remove the bolt, the entire gearbox can be removed.
1, single girder  overhead gantry crane  demolished parts reducer
① the high-speed shaft and the driven shaft of the joint shaft coupling bolts remove, disengage the gearbox transmission.
② Remove the reducer connection between the cover and the base bolts and tighten mortgage cover screws reducer lid opened, the combination of surface voids split gearbox, easy prying off reducer cover.
③ the gearbox drive shaft assembly and the driven shaft assembly were removed from the base of the gear unit.
2, single girder  hoist gantry crane  reducer overhaul
Joints gearcase overhaul: reducer after some time after the operation, the box sometimes deformed. Deformation at the box not only affects the joints gear transmission accuracy, but there will be leakage. Therefore, it must be repaired.
① cleaning tank with kerosene, cleaning joints on the dirt, sludge, etc., painted with red lead oil to make two joints running, scrape every individual grinding time highs and glitches, after several grinding, you can achieve the required accuracy.
② After grinding, the available test joints feeler gap, and its value should not exceed 0.03mm, single girder gantry crane underside of the joint surface parallelism error of 1m length should not exceed 0.5mm.