Disc-shaped torque transducer

摘要

A power tool includes a motor having an output shaft that defines an axis, a drive train connected to the output shaft and operable to drive a tool output and a housing at least partially surrounding the motor and the drive train. The power tool further includes a reference disk fixed to the housing, a collar including internal teeth that engage at least a portion of the drive train and a torque transducer having a hub, a web and a rim. The torque transducer is positioned between the collar and the reference disk such that the rim is connected to the collar and the hub is connected to the reference disk. The web defines a first thickness measured parallel to the axis and the rim defines a second thickness measured in a radial direction with respect to the axis, such that the second thickness is greater than the first thickness.

主权项

1. A power tool comprising:
a motor having an output shaft that defines an axis; a drive train operably coupled to the output shaft and operable to drive a tool output; a housing at least partially surrounding the motor and the drive train; a reference disk fixedly coupled to the housing; a collar including internal teeth that engage at least a portion of the drive train; and a torque transducer having a hub, a web and a rim, the torque transducer positioned substantially between the collar and the reference disk such that the rim is coupled to the collar and the hub is coupled to the reference disk, wherein the web defines a first thickness measured parallel to the axis and the rim defines a second thickness measured in a radial direction with respect to the axis, the second thickness being greater than the first thickness.