Our country is at an unprecedented rate into globalized international competitive market, China's crane manufacturing industry is facing both opportunities and challenges to the new situation. Therefore, electric hoist
overhead gantry crane of continuous development and innovation is the key.
Jacketed rotary scroll wheel support means horizontal deformation of the annular lower raceway raceway operation resulting in the rotating parts are climbing, slip slope phenomenon, and the track surface in the circumferential direction of the many small cracks appear and female erosion.
Electric
hoist gantry crane slip slope Analysis: Walking track foundation is not strong and low-lying, laying adjusted properly, so that two rail same section height difference in the long run have a serious ultra-poor and severely distorted single track. The
steel crane as a whole is tilted, indirectly reflected in the circular orbit, causes the roller contact points in the track a small area of stress concentration formed. Track at the wheel rolling repeatedly under high load hardened layer peeled off easily separated with the body, forming local fatigue damage to the track surface.
(2) Remedy:
A commonly used repair methods: electric hoist gantry crane rotating parts removed, send factories with a large machining repairs.
(2) temporary repair method: After rotating parts to stop fixed on the benefits, there will be cracks cracks and peeling at the shovel from the skin to go with the surfacing weld, polished smooth with the wheel, and then throw smooth.
3 Break Repair method: stop fixed on the rotating part of the original rail finish benefits, removal impede repair wheel, the need to replace the electric hoist gantry crane rail removed (this circular orbit is generally divided into 4-5 segments splicing Cheng, a new track will be processed re-welded to the original site, complete the segment between the butt smooth grinding wheel wells.
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