Eraser alcohol abrasion resistance testing machine

The utility model relates to a rubber alcohol abrasion resistance testing machine which comprises a machine frame body, a testing bottom plate, a movable frame, a supporting frame, a locking bolt, a friction head fixing rod and a friction head, the friction head fixing rod is arranged at the front end of the supporting frame in an up-down moving mode, and the friction head is arranged at the bottom end of the friction head fixing rod. An adjusting knob, a transmission assembly and a clutch locking assembly are further arranged on the supporting frame, when the adjusting knob rotates, the friction head fixing rod can be driven to ascend and descend through the transmission assembly, and the adjusting knob can be locked or unlocked through the clutch locking assembly; when the height position of the friction head is adjusted, the adjusting knob can be unlocked through the clutch locking assembly, then the adjusting knob is directly rotated, and the friction head fixing rod is driven to move up and down through