BRIDGE CRANE BRAKING DEVICE

BRIDGE CRANE BRAKING DEVICE

FIELD: mechanical engineering; materials handling facilities. ^ SUBSTANCE: invention can be used for braking lifting and transporting devices, for instance, cranes, in case of danger of collision. Proposed bridge crane contains hydraulically parallel-connected spring-and-hydraulic buffers with rods...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: EREJSKIJ V.D, KHAL'FIN M.N, IVANKOV R.V
Format: Patent
Sprache:eng ; rus
Schlagworte:
CRANES
HAULING
HOISTING
LIFTING
LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES
PERFORMING OPERATIONS
TRANSPORTING
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Beschreibung
Zusammenfassung:FIELD: mechanical engineering; materials handling facilities. ^ SUBSTANCE: invention can be used for braking lifting and transporting devices, for instance, cranes, in case of danger of collision. Proposed bridge crane contains hydraulically parallel-connected spring-and-hydraulic buffers with rods and braking device made in form of three-phase synchronous electric generators. Rotor of each electric generator is connected through step-up gear with corresponding running wheel. Shafts of running wheels set rotors of synchronous electric generators into rotation, three-phase voltage is induced in their stator windings which is fed through movable contacts and three-phase electromagnetic relay to three-phase load resistor. With synchronous electric generators operating, brake electromagnetic torque appears on load resistor which prevents rotation of rotors of synchronous electric generators. ^ EFFECT: improved efficiency of braking, reduced loads on metal structure. ^ 2 dwg