Novel transmission structure of chain belt type conveyer

The utility model belongs to a heat treatment apparatus, and concretely discloses a novel transmission structure of a chain belt type conveyer. The novel transmission structure is characterized in that a transmission system is arranged on a chain belt type conveyer body (1), axes of two-end drive chain wheels (2) are on the same plane, the axes of middle chain wheels (3) are on the same plane, the axis of the drive chain wheels (2) are disposed below the axis of the middle chain wheels (3), and a distance between the two axes equals to a reference diameter of the chain wheels. The middle chain wheels (3) are driven by the two-end drive chain wheels (2) through a chain (6), and the middle chain wheels (3) and the chain (6) are restrained from swaying through a chain support plate (4) which is arranged on a chain support plate mounting bracket (5). With adoption of the abovementioned structure, the height of the transmission system is lowered; and the chain is fixed by the support plate, so frictional force bet