电气制动与sew三合一减速机的配合应用（Matching application of electric brake and sew three in one reducer）.docVIP

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电气制动与sew三合一减速机的配合应用（Matching application of electric brake and sew three in one reducer）.doc

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电气制动与sew三合一减速机的配合应用（Matching application of electric brake and sew three in one reducer）

电气制动与sew三合一减速机的配合应用（Matching application of electric brake and sew three in one reducer） Matching application of electric brake and SEW three in one reducer -------------------------------------------------------------------------------- In the inverter, asynchronous motor and mechanical load frequency control system composed of, when the motor speed or the transmission potential load decentralization, asynchronous motor in regenerative braking state, then adopt the way to brake and brake form in what manner, is very important to realize the whole drive system is safe and accurate parking. Qinghai branch of Chalco China cart, PTM car adopts frequency control, the transmission mechanism adopts SEW three one reducer, SEW reducer motor, speed reducer and electromagnetic brake motor, special motor inverter, the cooling fan for independent power supply (big fan car AC380V, car fan, electromagnetic brake for AC220V) independent power supply (AC380V). The main features of SEW reducer for braking electromagnetic brake, and non mechanical brake (hydraulic thruster), during braking electromagnetic brake deceleration motor does not participate in the process, only to the parking position. In the original design before the transformation due to frequency converter without using electric brake, deceleration time converter set value is 10S, electromagnetic brake on the stop signal after the delay of action, such as electromagnetic brake within 5S, the motor output frequency is not down to 0HZ, the vehicle motion is very large, the brake lock will cause a huge mechanical impact to the vehicle such as, in addition to 5S electromagnetic brake action time is too long, crane sliding distance, and brake little difference, causing hazards to the safe operation of the crane. For SEW reducer electromagnetic brake friction plate should not be adjusted after the characteristics of electromagnetic brake to stop positioning role in electric braking, we use the combination of electric braking