2results about How to "Reduce input torque" patented technology

A positioning arm comprises: a link assembly having a translation link that can translate along a virtual axis passing through a remote center of motion (RCM) at a specified distance from a point, and can rotate in at least two directions around the point; and a gravity torque compensation portion that provides a compensation torque, the direction of which is opposite to the direction of the gravity torque caused by the link assembly's own weight acting on the point.

The utility model discloses a low torque stop valve relates to valve technical field. The utility model discloses a valve body is provided with the opening and closing subassembly in its inside, and the opening and closing subassembly includes the bonnet fixedly connected in the top of valve body, and the top fixedly connected with first installation shell of bonnet, and the inside all through the retainer movable joint with a plurality of globes of first installation shell periphery, and the top fixedly connected with second installation shell of first installation shell, and the top rear end rotationally connected with the sleeve pipe of second installation shell. The utility model through globes reduces the friction force that valve rod motion produced, and through the pinion on the sleeve pipe with the pinion on the drive rod to reduce the torque size of input, thereby realized reducing the overall torque size of valve, solved the single problem of the current torque reduction mode, and through first threaded rod and sliding block drive locating plate to lift, and through locating plate to limit the maximum opening of valve, solved the inconvenient control valve opening problem of current.