Toughening furnace transmission device

The utility model provides a toughening furnace transmission device which comprises two blocking rods, a first roller way, a second roller way, a third roller way and a plurality of fourth roller ways, and the first roller way, the second roller way, the third roller way and the fourth roller ways are located between the two blocking rods and are sequentially and movably arranged between the two blocking rods respectively. According to the utility model, the first belt pulley and the second belt pulley are in transmission connection through the independent transmission belt c, and the third belt pulleys are arranged on the two sides of the third roller way, so that power is provided for the first conveying wheel and the second conveying wheel through the third belt pulleys, namely the first roller way and the second roller way are separately conveyed from other roller ways; the first roller way and the second roller way are in transmission connection with other roller ways through thesame belt, the original i