本实用新型提出了一种多用加载装置， 主要包括上、 下连接座， 一对力臂。 下连接座下方设置固定底板， 左下力臂的下端与右下力臂的下端通过对应的下力臂芯轴铰接在下连接座上， 且相互啮合， 左上力臂的下端和左下力臂的上端通过左力臂芯轴铰接在一起， 右下力臂的上端和右上力臂的下端通过右力臂芯轴铰接在一起， 左上力臂的上端与右上力臂的上端通过对应的上力臂芯轴铰接在上连接座上， 且相互啮合， 上连接座的上方设置铰链连接座； 所述拉杆靠近两端的位置处设置有螺纹段， 且两端螺纹的旋向相反， 拉杆与左力臂芯轴、 右力臂芯轴采用螺纹连接。 该装置在工作时能实现在一个轴线上的稳定控制， 且无论有无负荷， 都不会有拉杆与芯轴脱离接触的情况。

The utility model proposes a multi-purpose loading device, which mainly includes upper and lower connecting seats and a pair of force arms. A fixed bottom plate is arranged under the lower connecting seat. The lower end of the lower left lever arm and the lower end of the lower right lever arm are hinged on the lower connecting seat through the corresponding lower lever arm mandrels, and they mesh with each other. The lower end of the left upper lever arm and the upper end of the left lower lever arm pass through The left arm mandrels are hinged together, the upper end of the right lower arm and the lower end of the right upper arm are hinged together by the right arm mandrel, the upper end of the left upper arm and the upper end of the right upper arm are passed through the corresponding upper end of the arm mandrel Are hinged on the upper connecting seat and mesh with each other, and a hinge connecting seat is arranged above the upper connecting seat; the pull rod is provided with threaded sections at positions close to both ends, and the threads of the two ends have opposite directions, the pull rod and the left arm mandrel , The right arm mandrel adopts threaded connection. The device can realize stable control on one axis during operation, and no matter whether there is a load or not, the pull rod will not be out of contact with the mandrel.