Cutter frequency conversion driving device for shield tunneling machine

Cutter frequency conversion driving device for shield tunneling machine

The utility model relates to an accessory device for a shield tunneling machine, in particular to a cutterhead variable frequency driving device for the shield tunneling machine. In order to solve the problems that in the prior art, redundancy is poor, and large harmonic waves can be generated on a...

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Hauptverfasser: LI MIN, DING XIAONING, XIA LIANGZHI, CHENG XINGMIN
Format: Patent
Sprache:chi ; eng
Schlagworte:
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS
SHAFTS
TUNNELS
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creator LI MIN
DING XIAONING
XIA LIANGZHI
CHENG XINGMIN
description The utility model relates to an accessory device for a shield tunneling machine, in particular to a cutterhead variable frequency driving device for the shield tunneling machine. In order to solve the problems that in the prior art, redundancy is poor, and large harmonic waves can be generated on a network test, the utility model provides a novel cutterhead frequency conversion driving device for a shield tunneling machine, which comprises a twelve-pulse dry-type rectifier transformer provided with two secondary sides, wherein one secondary side is connected with the input end of the first rectifier through the first circuit breaker, the other secondary side is connected with the input end of the second rectifier through the second circuit breaker, the first rectifier and the second rectifier are connected in parallel and then connected with the input ends of the six inverters, and the output ends of the six inverters are connected with the six cutterhead variable frequency motors respectively. And a connecti
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In order to solve the problems that in the prior art, redundancy is poor, and large harmonic waves can be generated on a network test, the utility model provides a novel cutterhead frequency conversion driving device for a shield tunneling machine, which comprises a twelve-pulse dry-type rectifier transformer provided with two secondary sides, wherein one secondary side is connected with the input end of the first rectifier through the first circuit breaker, the other secondary side is connected with the input end of the second rectifier through the second circuit breaker, the first rectifier and the second rectifier are connected in parallel and then connected with the input ends of the six inverters, and the output ends of the six inverters are connected with the six cutterhead variable frequency motors respectively. 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subjects EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS
SHAFTS
TUNNELS
title Cutter frequency conversion driving device for shield tunneling machine
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