Inserting device for quay crane lifting appliance upper frame and lifting appliance

Abstract

The invention discloses a plugging device for a quay crane lifting appliance upper frame and a lifting appliance. The plugging device comprises a plug assembly and a socket assembly. The plug assemblycomprises a plug shell, a traction electromagnet, a guide column, transverse compression springs, a longitudinal tension spring, positioning steel balls, partition plates, a conical column, a suckerand contact pins. The socket assembly comprises a socket shell, partition plate sleeve holes, a guide column sleeve hole, steel ball positioning holes and jacks. During butt joint, the positioning steel balls at the top end of the guide column fall into the steel ball positioning holes formed in the bottom end of the guide column sleeve hole and are extruded and fixed through the transverse compression springs, and self-locking is achieved. During separation, the traction electromagnet is powered on, the longitudinal tension spring contracts under traction of the traction electromagnet, the conical column is driven to operate along with the longitudinal tension spring, and the positioning steel balls are separated from the steel ball positioning holes to achieve unlocking. The self-lockingand automatic unlocking structure can avoid the fault of plug loosening caused by operation vibration. The contact pins are isolated by the partition plates according to electrical classification, sothat electromagnetic interference in operation is avoided.

Description

technical field [0001] The invention belongs to the technical field of ports and wharfs, and in particular relates to a hanger-mounting device for a quay crane spreader and a spreader plug-in device. Background technique [0002] For the current shoreside container cranes, the spreader is frequently used and has a high failure rate, and the spreader needs to be replaced periodically. An important part of replacing the spreader is the connection and separation of the plug, but the plug used in the spreader and the rack is generally used Evenly distributed pins, in actual use, are likely to cause loose connections due to continuous vibration; and, with the development of automated container terminals, the spreader function is more powerful, and the optical fiber and communication lines used in the quay crane and the spreader More and more, evenly distributed pins have electromagnetic interference problems in actual use, which may easily cause unstable signals of the spreader. ...

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