Non-sliding parallel shaft line gear mechanism with separable center distance

The invention discloses a non-sliding parallel shaft line gear mechanism with separable center distance. The mechanism comprises a transmission pair composed of a pair of parallel shaft line gears, including a driving wheel and a driven wheel, wherein the driving wheel and the driven wheel are each composed of a wheel body and line teeth, and the tooth profile of the end face of the line teeth is an eccentric arc tooth profile designed in a parameterized mode. The line gear mechanism can realize continuous and stable non-sliding transmission under different center distance conditions within a certain range, so that the transmission ratio of line gear transmission is irrelevant to the center distance of the two gears, the transmission ratio is not affected by errors of the center distance, the influence of the errors of the center distance on transmission performance is reduced, and the mechanism is particularly suitable for occasions such as micro-transmission in which the assembly precision is difficult to e