Gantry crane slip slope phenomenon Solutions

Jacketed rotary scroll wheel support device under the ring raceway raceway horizontal deformation resulting in the rotation of locally run uphill, slope slip phenomenon,

1,  gantry crane   Analysis: Walking track foundation is not strong and low-lying, laying adjusted properly, so that two rail height difference the same section in the temporary operation of the ultra-poor and serious distortion serious single track. The  hoist crane  as a whole is tilted, reflected indirectly to the annular track, the track and the roller causes the formation of a small area of ​​contact at the stress concentration. Track at the wheel rolling repeatedly under high load hardened layer peeled off easily separated with the body to form a track appearance local fatigue damage.

2 Remedy:

a, common repair methods: rotating subassembly down, sending the factory with a large machining repairs.

b, temporary repair method: fixed end stop rotating partial benefits, there will be cracks cracks and peeling at the shovel from the skin to go with the surfacing weld,bridge gantry crane polished smooth with the wheel, and then throw smooth.

c, subparagraph repair method: local stops rotating fixed rail in the complete original benefits of removal impede repair wheel, remove the need to replace the track (this circular orbit is generally divided into 4-5 segments splicing, the process is good the new track re-welded to the original site, complete segmentation between the butt smooth grinding wheel wells. Caution: Break Repair Preparation special jig is required to control the new and the old rail track segment elevation at the radius of curvature, etc. and can not be changed.