Crane with double trollies and telescopic cantilever beam

Abstract

The invention discloses a crane with double trollies and a telescopic cantilever beam. The crane comprises a double-beam bridge frame comprising end beams and main beams. H-type steel rails are arranged below the main beams. A lifting trolley is connected between the two rails. A lifting hook type jack-up lifting device is arranged on the lifting trolley. Large vehicle driving devices and anti-tipping devices are arranged at the two ends of the end beams. The two ends of the rails are connected with vehicle bumper devices, and the positions can be adjusted. A suspension end beam trolley is further connected to the two rails. A rotating mechanism is arranged on the suspension end beam trolley. The lower end of a suspender shaft in the rotating mechanism is connected with a cantilever component, and the upper end of the suspender shaft is connected with a safety ruler. The cantilever beam in the cantilever component is a telescopic beam, and telescopic activities of the cantilever beam are controlled by a hydraulic cylinder. One end of the cantilever beam is connected with a hydraulic station, and an electric hoist is fixedly hung at the other end of the cantilever beam. The cantilever beam is located below the main beams, can stretch out of a workshop to work, and can rotate on the horizontal plane.

Description

technical field [0001] The present application relates to the field of cranes, in particular to a crane with double trolleys and a telescopic cantilever beam. 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 it...

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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