| 摘要 |
The present invention relates to a torque sensor device for sensing torque between an input axis and an output axis through the relative rotation displacement of the input and output axes by being arranged between the input axis and the output axis. The present invention comprises: a housing which is able to relatively rotate to the input axis and the output axis by accommodating end parts of the input and output axes and being arranged and fixated on a position; a magnet unit which is arranged and accommodated in the housing and includes a magnet ring arranged and accommodated in the housing in order to be able to rotate inside the housing by being connected with an end of any one side between the input axis and the output axis; a collector unit which focuses the magnetic field of the magnet unit by being fixated on the housing and being arranged outside the magnet unit; a sensing unit which includes a torque sensor for sensing the magnetic field focused through the collector unit by being arranged in the outer circumference side of the collector unit; and a shield ring unit which is arranged between the collector unit and the magnet unit, is connected with an end of the other side between the input axis and the output axis, and changes the magnetic field of the magnet unit focused through the collector unit by a relative rotation between the input axis and the output axis. In the provided torque sensor device, the shield ring unit includes: a shield ring body which is arranged inside the collector unit and accommodates the magnet unit inside in order to be able to rotate relatively; and a plurality of shield ring pieces which are separately arranged from the outer circumference of the shield ring body at a previously set interval in the shield ring body. |
