Bridge cantilever crane with two travelling trolleys and anti-tipping end beams

Abstract

This application discloses a bridge-type cantilever crane with two running trolleys and anti-tipping end girders, including two end girders and two main girders to form a double-girder bridge frame; the outer sides of the two main girders are equipped with walking platforms , where one of the walkways is connected to the electric frame and the hanging cable; the track above the main girder is connected to two running trolleys; Both sides are connected with anti-roller devices, and the anti-roller devices are hooked and run on the rails outside the main girder; the running trolley adopts a drive device connected with a "three-in-one" reducer and a floating shaft; the thrust bearing in the rotating mechanism on the running trolley is connected to the The upper part of the bearing seat; the lower end of the boom shaft is connected to the cantilever member, and the upper end is connected to the safety ruler; two travel switches are connected to the running trolley; the electric hoist is installed on the cantilever member and can move back and forth along the cantilever beam; the cantilever beam is located under the main beam and Can rotate.

Description

technical field [0001] The present application relates to the field of cranes, in particular to an overhead cantilever crane with two running trolleys and an end girder with anti-tipping. 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...

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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