Damping device for bridge crane

Abstract

The invention relates to a damping device, in particular to a damping device for a bridge crane. Provided is a vibration damping device for a bridge crane with a control girder balance. The technical embodiment of the present invention is: a bridge crane shock absorber, including a crane, the crane includes a traveling end beam, a shock absorber, a main girder, a crane, etc.; The end beams are respectively arranged on the two rails, and there are two shock absorbers. Above the shock chamber, the lifting truck is set on the upper side of the main girder. The effect achieved by the present invention is that by controlling the lifting truck to lift the goods, the speed of the downward movement of the hydraulic plug is slowed down step by step, and the shock absorption and buffering function of the main beam is realized. , hoisting ropes, hoisting trucks and main girders and other components cause impacts to deform or damage them, resulting in safety accidents.

Description

technical field [0001] The invention relates to a damping device, in particular to a damping device for a bridge crane. Background technique [0002] The bridge crane is a lifting device that is horizontally placed over the workshop, warehouse and stockyard for material lifting. Because its two ends are located on tall concrete pillars or metal supports, it is shaped like a bridge. The bridge frame of the bridge crane runs longitudinally along the tracks laid on the elevated sides on both sides, which can make full use of the space under the bridge frame to lift materials without being affected. It is the most widely used and the largest number of lifting machinery. [0003] The main girder of existing bridge cranes is mostly rigidly connected to the movable end girders at both ends without shock absorbing devices. When beams, cranes and slings are suddenly pulled downward by the goods, they will be impacted by a large force. Long-term use will cause deformation or damage ...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the rigid connection between the main girder of the existing bridge crane and the moving end girders at both ends, there is no shock absorbing device. When the crane on the upper side of the main girder lifts the goods, due to the static inertia of the goods, , the main girder, the crane and the sling will be impacted by a large force when they are suddenly pulled downward by the cargo. Long-term use will cause deformation or damage to various parts of the crane, which will affect the service life of the crane. In severe cases, the crane suddenly Due to the downward pull of the goods, the crane components are damaged and safety accidents occur. The invention provides a shock absorber for bridge cranes

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