Dynamic balancing apparatus holder

The utility model discloses a dynamic balancing apparatus holder, including the chuck, the surface covering of chuck one end has the pivot, the other end of chuck is equipped with the dog, be equipped with the spring between pivot and the dog, still including shell, first bearing and second bearing, the outer lane of first bearing and the outer lane of second bearing all are connected with the shell, the inner circle of first bearing is established in the pivot with the interior snare of second bearing, still including the belt pulley of being connected with the shell, the belt pulley is connected with the inner circle of second bearing. The utility model discloses an other end in the pivot sets up spring and belt pulley, can mitigate load and strike in the time of the pivot pivoted for dynamic balancing test is steady more, increases the life of holder. 本实用新型公开了种动平衡仪夹持件，包括有夹头；所述夹头端的表面覆盖有转轴；所述夹头的另端设有挡块；所述转轴与挡块之间设有弹簧；还包括有外壳、第轴承以及第二轴承；所述第轴承的外圈和第二轴承的外圈均与外壳连接；所述第轴承的内圈与第二轴承的内圈套设在转轴上；还包括有与外壳连接的皮带轮；所述皮带轮与第二轴承的内圈连接。本