Coarse aggregate abrasion test device

The utility model discloses a coarse aggregate abrasion test device, which relates to the technical field of building material detection and comprises a bearing plate, two supports are symmetrically mounted at the top of the bearing plate, a roller is rotatably mounted between the two supports, a discharge door is detachably mounted on the outer wall of the roller, a driving motor is mounted at the top of the bearing plate, and the driving motor is mounted on the top of the bearing plate. A gear is installed at the driving end of the driving motor, a gear ring is installed on the outer wall of the roller, the gear is connected with the gear ring in a meshed mode, the outer portion of the roller is covered with a sound-proof cover, a sound-proof felt is arranged on the inner wall of the sound-proof cover, a sound-proof door is arranged on the front side of the sound-proof cover, and a damping mechanism is arranged below the bearing plate. The sound insulation and noise reduction test device has sound insulatio