Chain drive mechanism

Abstract

The utility model belongs to the technical field of precision instrument, especially is a chain drive mechanism. Including main clamping plate is provided with transmission sprocket group, tension sprocket group and elastic tensioning mechanism, transmission sprocket group and tension sprocket group are commonly covered with chain, and elastic tensioning mechanism drives tension sprocket group to continuously press chain. The utility model through the cooperation of transmission sprocket group and tension sprocket group has realized the stable transmission and automatic tensioning of chain, and elastic tensioning mechanism continuously pushes tension sprocket group to compress chain, effectively restrains the shaking and noise in the transmission process, and the installation layout of sprocket one and sprocket two is optimized by the structure of split small clamping plate one and small clamping plate two, the internal space is saved significantly, the limiting protrusion avoids excessive tension, prevents chain from slipping, ensures the reliability of transmission, the overall structure is compact, and assembly and maintenance are simple, and it is applicable to the precision transmission occasion with high space and precision requirement.

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