Movable roll adjusting device for roll crusher

The utility model belongs to the technical field of roll crushers and in particular relates to a movable roll adjusting device for a roll crusher. The movable roll adjusting device for the roll crusher comprises an upper sliding rail and a lower sliding rail which are arranged on a frame opposite to each other, wherein an end cover plate is arranged on the frame which is positioned at the end of the upper sliding rail and the lower sliding rail; a first vertical plate and a second vertical plate are arranged between the upper sliding rail and the lower sliding rail in a sliding mode; two adjusting lead screws which are vertically arranged opposite to each other are in threaded connection with the end cover plate; the ends of the two adjusting lead screws are pressed against the first vertical plate; multiple springs are arranged between the first vertical plate and the second vertical plate; the second vertical plate is pressed against a bearing block of the movable roll; a connection spring lead screw is arr