Cutter bar dismounting device

The invention relates to a cutter bar dismounting device. The cutter bar dismounting device comprises a base, a rack movably connected with the base and a lead screw rotationally connected with the rack. A first boss is arranged on the base, and a second boss is arranged at the lower end of the lead screw. The cutter bar can be placed between the first boss and the second boss, the screw rod is rotated, and the second boss moves towards the direction of the first boss so as to clamp the cutter bar. According to the tool bar dismounting device, the two bosses are matched with the grooves in the tool bar, so that point or line contact of clamping of the tool bar is changed into surface contact, the clamping device is effectively guaranteed, and abrasion is small. 本发明涉及一种刀杆拆卸装置，包括：基座、与所述基座活动连接的机架以及与所述机架转动连接的丝杆；所述基座上设置有第一凸台，所述丝杆的下端设置有第二凸台；所述刀杆可放置在所述第一凸台与第二凸台之间，转动所述丝杆，所述第二凸台向所述第一凸台的方向移动从而夹紧所述刀杆。该刀杆拆卸装置采用两个凸台与刀杆上的凹槽配合，使刀杆的夹紧由点或线接触变为面接触，有效保证夹紧装置，且磨损小。