Half-portal crane with running trolley

Abstract

The application discloses a semi-gantry crane with a running trolley, which comprises a semi-gantry composed of an end beam, two main beams, and a support leg frame; Electric frame; a track is arranged above the main beam, and the running trolley is connected to the track; the end beam and the ground beam are connected to the cart drive device, the passive wheel group and the buffer; the outer side of the main beam is provided with a side track; the lower part of the side track is connected Safety hook; the safety hook is connected to the running trolley with the rotating mechanism; the lower end of the boom shaft in the rotating mechanism is connected to the cantilever member, and the upper end is connected to the safety ruler; the cantilever beam in the cantilever member is welded by I-beam or made of H It is welded from section steel; one end of the cantilever beam close to the hanger is fixedly connected to the buffer, and the other end is connected to the vehicle stop device and its position is adjustable; the cantilever beam is connected to an electric hoist and can move horizontally along the cantilever beam; the cantilever beam is under the main beam and can rotate.

Description

technical field [0001] The present application relates to the field of cranes, in particular to a semi-gantry crane with a running trolley. 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 farther away fr...

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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