Half-portal-frame crane adopting open type transmission and provided with lifting trolley and travelling trolley

Abstract

The application discloses a semi-gantry crane with a lifting trolley, a running trolley and an open drive, including a semi-gantry. The semi-gantry is composed of an end beam, two main beams, and a leg frame. One end of the main girder is connected to the end girder and the other end is connected to the outrigger frame; one main girder is equipped with a pick-up frame; two sets of hanging cables are installed on the pick-up rack; a lifting trolley and a running trolley are connected to the track above the main girder ;The outer side of the main beam is equipped with side rails; the lower gap of the side rails is connected with a safety hook; the running trolley is driven by a ZSC reducer; the running trolley is equipped with an open transmission rotation mechanism; the boom shaft in the open transmission rotation mechanism It is connected with the cantilever component; the cantilever component is provided with a rotation limit device; the cantilever component is equipped with an electric hoist and can move back and forth horizontally along the cantilever beam; the cantilever beam is connected with a position-adjustable car stop device; Stretch out to work outside the workshop, and can rotate on the horizontal plane.

Description

technical field [0001] The present application relates to the field of cranes, in particular to a semi-gantry crane with a lifting trolley, a running trolley and an open transmission. 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 pul...

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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