Bridge type cantilever crane with two suspended trolleys

Abstract

The application discloses a bridge-type cantilever crane with two suspended trolleys, including a double-girder bridge; the double-girder bridge includes an end beam and a main beam; the end beam is provided with a cart running device; the main beam A rail is arranged below; two suspension trolleys are connected on the two rails and can run along the rails; a rotation mechanism is arranged on the suspension trolley; the boom shaft in the rotation mechanism is connected with the cantilever member; the A rotation limiting device is arranged between the cantilever member and the suspension trolley; an electric hoist is installed on the cantilever member, and the electric hoist can move back and forth horizontally along the cantilever beam; the cantilever beam is under the main beam and can rotate; the double-girder bridge An electrical pick-up frame is arranged on the end beam, two steel cable rails are connected between the two electrical pick-up frames, and the hanging cables on the two steel cable rails are respectively electrically connected with the two suspension trolleys.

Description

technical field [0001] The present application relates to the field of cranes, in particular to an overhead cantilever crane with two suspension trolleys. Background technique [0002] Existing bridge cranes are used in enterprise workshops. Some workshops are equipped with many machine tools for processing and production. Products and raw materials need to be transported to the next workshop or other departments in real time; the hooks of the cranes in the workshop are hung from the trolley. For hoisting goods, the trolley can only run back and forth along the double girders of the crane, and the crane can only run back and forth along the cart rails on the cross columns on both sides of the workshop, so that the range of goods that the crane hook can lift is within the distance between the two cart rails in the workshop. Within the plane surrounded by the two ends, when the goods at the edge of the plane need to be hoisted, the hook will be pulled obliquely, and the items ...

AI Technical Summary

Problems solved by technology

[0002] Existing bridge cranes are used in enterprise workshops. Some workshops are equipped with many machine tools for processing and production. Products and raw materials need to be transported to the next workshop or other departments in real time; the hooks of the cranes in the workshop are hung from the trolley. For hoisting goods, the trolley can only run back and forth along the double girders of the crane, and the crane can only run back and forth along the cart rails on the cross columns on both sides of the workshop, so that the range of goods that the crane hook can lift is within the distance between the two cart rails in the workshop. Within the plane surrounded by the two ends, when the goods at the edge of the plane need to be hoisted, the hook will be pulled obliquely, and the items farther away from this plane (such as outside the workshop door, outside the span) cannot be hoisted. At this time, it can only be transferred with the help of other transportation equipment. Usually, the car drives into the workshop to lift the goods under the hook. Go to the hook to hand over the goods, and some set up a special cantilever crane at the workshop door (or workshop aisle) to transfer and dispatch the goods outside the workshop, first hoist the goods into the place where the crane hook of the workshop can reach , and then the cargo is hoisted by the crane to other stations in the workshop. The existing bridge crane used in this working condition cannot directly transfer the cargo with the workshop next door, and must use other transportation equipment to schedule operations, which brings considerable inconvenience. It also wastes manpower and material resources

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