Highway bridge construction device

The highway bridge construction device comprises a shell, symmetrical crushing roll shafts are arranged on the upper portion of an inner cavity of the shell, a sieve plate is fixedly connected to the middle of the inner cavity of the shell, a bearing box is slidably connected to the lower portion of the inner cavity of the shell, and a driving mechanism for driving the crushing roll shafts to rotate is arranged on one side of the upper portion of the shell. Symmetrical sliding grooves are formed in the side, close to the driving mechanism, of the upper portion of the shell, limiting pieces used for limiting and fixing the crushing roller shafts are arranged in the sliding grooves, and when the crushing roller shafts move relatively, the crushing roller shafts horizontally move towards the two sides and are separated from the output end of the driving mechanism. And the output end of the limiting piece can limit the crushing roller shaft. The steel bar screening device can be fixed by the limiting piece, the s