Driving shaft mechanism

The utility model relates to a driving shaft mechanism which comprises a driving shaft, the outer side of the driving shaft is rotationally connected with a barrel-shaped support, one end of the outer side of the driving shaft is rotationally connected with one end of the inner side of the barrel-shaped support through a one-way thrust ball bearing, and the other end of the outer side of the driving shaft is rotationally connected with the other end of the inner side of the barrel-shaped support through a deep groove ball bearing. Due to the fact that the one-way thrust ball bearing and the deep groove ball bearing are arranged between the driving shaft and the cylindrical support, the driving input end of the driving shaft can bear one-way axial loads, the driving output end of the driving shaft can bear radial loads, and the position stability of the driving shaft is greatly improved. 本实用新型涉及一种驱动轴机构，包括驱动轴，驱动轴外侧转动连接筒型支架，驱动轴外侧的一端通过单向推力球轴承与筒型支架内侧的一端转动连接，驱动轴外侧的另一端通过深沟球轴承与筒型支架内侧的另一端转动连接。通过在驱动轴和筒型支架之间设置有单向推力球轴承和深