Single girder gantry crane reducer safety requirements which do

   The following is a single girder  bridge gantry crane  reducer some of the security requirements:
     
1 Always check the bolt, not loose, fall off and break.

2 day Check gear box, bearing at temperatures not exceeding allowable temperature. When the temperature exceeds 40 ℃, room temperature should be checked whether the bearing

Damaged, improperly installed or missing whether grease, the load time is too long, running without catching phenomena.

3 Check the lubrication. Electric wire rope hoists initial use, the oil changed once every three months, and clean the cabinet, remove metal shavings

, Later changed every six months to a year, shall not leak oil, according to the cleanliness of the oil, but oil should be moderate.

4 Note gear noise. Excessive or unusual noise or crash, you should check the shaft and the gear box damage. Normal state

Its sound uniform light, noise does not exceed 85dB (A).

5 with a magnetic or ultrasonic flaw inspection gearbox shaft and found cracks should be replaced.

6 gantry crane  electric hoist housing shall not have deformation, cracking phenomenon.

7 reducer parts of the following circumstances, should be scrapped.

① gear cracks and broken teeth.

② tooth engaging surface pitting damage up 30% of the original tooth thickness or depth of up to 10%, the pieces of scrap.

③ lifting mechanism of the first stage gear worn tooth thickness of the original 10%, and other wear and tear of the original stage gear meshing tooth thickness of 20% should be scrapped; its

His agency first stage gear tooth thickness wear of the original 15%, and other wear and tear of the original stage gear meshing tooth thickness of 25% should be scrapped; open tooth

Wheel drive gear wear of the tooth thickness of the original 30%, the gear scrapped.

④  hoist gantry crane  reducer shell pieces severe deformation, cracks and no fix the value of the pieces of scrap.