Bridge crane with high-speed assembly

Abstract

The invention relates to a bridge crane with a high-speed assembly. The bridge crane comprises a bridge frame, a trolley, a lifting mechanism and a lifting appliance (19), wherein the trolley, the lifting mechanism and the lifting appliance (19) are arranged on the bridge frame. The trolley comprises a frame (1), walking wheels (3) and horizontal guide wheels (17). The lifting mechanism comprisesa steel wire rope and a winding assembly. Wheel high-speed vibration reduction assemblies (2) are arranged on the walking wheels (3). Lateral high-speed vibration reduction assemblies (18) are arranged on the horizontal guide wheels (17). A trolley high-speed traction assembly (15) is arranged on the frame (1). A cabin hanging protection and vibration reduction assembly (14) is arranged on the lifting winding assembly. A lifting appliance rapid stabilization assembly is arranged on the lifting appliance (19). Compared with the prior art, the bridge crane has the beneficial effects that the lifting speed of the crane and the horizontal running speed of the trolley are greatly increased, the structural vibration displacement of the crane is obviously reduced, the whole crane runs more stably, and the production efficiency is greatly improved.

Description

technical field [0001] The invention relates to the field of port machinery and construction machinery, in particular to an overhead crane with high-speed components, which realizes high-speed cranes. Background technique [0002] Cranes are lifting and transporting equipment that reduce heavy physical labor, improve work efficiency, and achieve safe production. It can vertically lift and move objects horizontally within a certain range, and has the characteristics of intermittent operation and cyclic operation. [0003] Among them, there are two types of bridge cranes, one is the lifting equipment that is horizontally placed over the workshop, warehouse and stockyard for material lifting, and the other is the equipment used by the port to lift heavy objects, load and unload materials and containers on the shore Because the structure and shape of the cranes are similar to bridges, they are collectively referred to as bridge cranes. The bridge frame of the bridge crane runs ...

AI Technical Summary

Problems solved by technology

[0005] The crossing type double trolley bridge type crane completes the process of two load trolleys crossing each other in the air. Since the two load trolleys can pass through each other, they can walk independently on their respective tracks without being blocked. Therefore, the crane The loading and unloading speed can be significantly improved, but the mechanical structure of the crane is complex and the initial cost is high. At the same time, when two load trolleys meet in the air, the load trolley in the center will first lift the pick-up device and goods carried below to the A pick-up device that is higher than another trolley will increase unnecessary power consumption, and at the same time increase the risk of hanging the cabin, high operating and maintenance costs, and high risks

[0006] Another way to improve the unloading efficiency of the crane is to install high-speed components in the crane to increase the running speed of the crane, but there is a bottleneck in this way: when the lifting speed and the running speed of the trolley exceed 75-90m / min and 240m / min There will be a series of dynamic problems, including: increased shaking of the crane structure, structural deformation beyond the limit required by the code, the risk of overall structural instability, a greatly reduced structural life, the risk of early cracks or even failure, and the risk of crane drivers. Significantly reduced comfort and safety

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