Mini electric hoist motor technology requirements
Motor most lifting equipment is the most important step, mini electric hoist motor is one of the technical requirements of this standard shall comply with the requirements in accordance with prescribed procedures approved manufacturing drawings and technical documents.hoist equipment Motor used under the following operating conditions, should be able to ensure proper operation.
The following details.
1, using the site altitude does not exceed 1000m.
2, the highest place of use of ambient air temperature changes with the seasons, but generally does not exceed 40 ℃.
3, the lowest place of use ambient air temperature is -25 ℃.
4, the wettest month of the monthly mean maximum relative humidity of 90%, while the average minimum temperature in January is not higher than 25 ℃.chain block Motor with class F insulation, when the altitude and the ambient air temperature meet the requirements of 1 and 2, the motor winding temperature rise should not exceed 105K, bearing allowable temperature should not exceed 95 ℃.
Mini electric lever hoist lifting the rated load, the motor terminal voltage is the rated voltage 90%, to ensure that all agencies can work, for conical rotor motor and disc brake motor and a residual magnetic pull. When the three-phase power balance, the three-phase motor load current in any one phase and three-phase average deviation should not exceed ± 10% of the average three-phase motor rated power and rated the reference voltage, the stall torque , respectively, the maximum torque rated torque ratio should not be less than the guaranteed values specified in Table 2.