Planet ball

The utility model relates to a planet ball, its characterized in that: including the cylinder with establish the planet carrier in the cylinder, the planet carrier is gone into battle and is shown a plurality of planet worm wheels and lie in its central lead screw, lay the ball with the 2nd spiral raceway intermeshing of a spiral raceway of cylinder internal face, lead screw outer peripheral face on the planet worm wheel. The utility model discloses the lead screw combines planetary gear transmission and worm -drive ingeniously, full play big, the transmission of the drive ratio of big, the high transmission efficiency of planetary gear transmission's power dividing, bearing capacity and worm -drive steadily, noise low grade advantage, make the mechanism can bear bigger load and impact simultaneously, the reliability is high, in fields such as aircraft industry, robotechnology, medical equipment, digit control machine tools, has the vast potential for future development. 本实用新型涉及种行星滚珠丝杠，其特征在于：包括圆筒体和设在圆筒体内的行星架，