Lubricating structure between saddle and base body of bridge and lubricating method

Abstract

The invention relates to the technical field of lubrication between a saddle and a base in a bridge building, in particular to a lubricating structure between a saddle and a base body of a bridge and a lubricating method. On the saddle of the bridge, a high-strength nano diamond extreme pressure resistant lubricating layer is manufactured on the bottom surface of the saddle; and on the base body, a high-strength molybdenum disulfide self-lubricating extreme pressure resistant lubricating layer is manufactured on the bottom surface of the saddle, a molybdenum disulfide grease layer is arranged between the high-strength nano diamond extreme pressure resistant lubricating layer and the high-strength molybdenum disulfide self-lubricating extreme pressure resistant lubricating layer, and a plurality of molybdenum disulfide balls are arranged in the molybdenum disulfide grease layer. Compared with the prior art, the lubricating structure has the advantages that the overlap of multiple kinds of new formula lubricating coatings and structures is taken between the saddle and the base, and a rolling friction mode is also added between the saddle and the base, thus the friction coefficient reaches below 0.03; the functions of preventing corrosion and rusting are achieved; and the bearing property of a lubricating medium between the saddle and the base body is increased, thus the saddle is enabled to be more easily moved on a bottom plate in a more labor-saving manner.

Description

[technical field] [0001] The invention relates to the technical field of lubricating a saddle and a base in bridge construction, in particular to a lubricating structure and method between a bridge saddle and a base. [Background technique] [0002] At present, mirror-finished stainless steel plates are made on the dual surfaces where the bridge saddle and seat body meet, and a polytetrafluoroethylene plate is used as a lubricating medium between the two stainless steel plates. The friction coefficient of polytetrafluoroethylene is relatively small, generally around 0.05. Under normal circumstances, when the vertical load acting on the saddle is less than 10,000 tons per square meter, if a horizontal force of 10 tons acts on the saddle, the saddle can slide on the seat. When it is greater than 10,000 tons, the PTFE plate is subjected to strong extrusion and begins to deform, thus losing its lubricating effect. As the span of the bridge being built increases, the force acting...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the deformation and damage of the tetrafluoroethylene plate in the middle of the prior art due to extreme pressure, which requires a large thrust to push the saddle, the friction coefficient of sliding friction between the bottom surface of the saddle and the upper surface of the bottom plate is too large, Insufficient to meet the high load-carrying capacity of the lubricating medium between the saddle and the seat body, provide a compound lubricating structure with balls, a new lubricating coating formula, and a new way to reduce frictional resistance

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