Multi-bridge crane bridge structure and crane

Abstract

The invention provides a bridge structure of a multi-bridge crane and a crane and relates to the technical field of machine manufacturing. The bridge structure comprises a plurality of bridges, wherein each bridge comprises a main beam and end beams, a load beam for supporting is arranged between every two adjacent end beams, the load beams are parallel and spaced, guide rails are arranged on the bridges, and guide rail fixing blocks are arranged at two ends of each guide rail; a support mechanism is arranged at the lower part of each end beam, is fixedly connected with the end beam and adopts a rubber bearing; and each rubber bearing comprises a first cover plate and a second cover plate, the second cover plate is square and provided with a groove in the middle, the cross section of the second cover plate is U-shaped, the first cover plate is provided with a bulging part in the middle, the bulging part is matched with the groove, and bulging parts covering the second cover plate are arranged at two ends of the first cover plate. The problem about the overall stability of a steel structure foundation is solved, and the crane is simple in structure, low in cost and quite convenient to mount and maintain.

Description

technical field [0001] The invention relates to the technical field of mechanical manufacturing, in particular to a multi-bridge crane bridge structure and a crane. Background technique [0002] The bridge crane is a lifting device that is horizontally placed over the workshop, warehouse and stockyard for material lifting. It is the most widely used and the largest number of cranes. Cranes have driven the rapid development of my country's large-scale infrastructure construction, energy industry, real estate industry, petrochemical industry and shipbuilding industry. [0003] The bridge cranes in the prior art often only have a single trolley and a single hook, so that the carrying weight is limited, and a single trolley can easily block the operator's sight, making the operation difficult, thereby increasing the risk value. However, when the single hook transports long-shaped goods, such as steel bars, it will cause the goods to shake, which will easily cause injuries to t...

AI Technical Summary

Problems solved by technology

[0003] The bridge cranes in the prior art often only have a single trolley and a single hook, so that the carrying weight is limited, and a single trolley is easy to block the operator's sight, making the operation difficult, thus increasing the risk value

However, when the single hook transports long-shaped goods, such as steel bars, etc., it will cause the goods to shake, which will easily cause injuries to the staff in the workshop or warehouse.

[0004] Traditional overhead cranes are often heavy and waste a lot of material

And in the hoisting of goods, due to the rigid material, there will be a certain degree of deflection change, and the connection of the bridge structure of the crane is a rigid connection. This rigid connection shortens the service life of the crane and is not good for the steel structure foundation.

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