Adjustable grain vibration cleaning sieve

The utility model discloses an adjustable grain vibration cleaning sieve, which relates to the technical field of cleaning sieves and particularly comprises two mounting plates, support frames are mounted on the sides, far away from each other, of the two mounting plates, vibration mechanisms are arranged on the side surfaces of the two mounting plates, a first sieve is arranged in front of the two mounting plates, and a second sieve is arranged in front of the two mounting plates. The two sides of the first screen are fixed to the side face of the mounting plate, a second screen with the same specification as the first screen is arranged at the top of the first screen, the bottom of the second screen makes contact with the bottom of the first screen, connecting strips are mounted on the two sides of the top of the second screen, and a plurality of sliding blocks are mounted at the tops of the connecting strips at equal intervals. Guide rails are installed on the close faces of the two installation plates, an