JPS6339648U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a torque detection device according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line -- in FIG. 1, and FIGS. FIG. 5 is a longitudinal sectional view of a conventional non-contact torque detection device. [Explanation of symbols] 30...Housing, 31...
Input side rotating body, 32... Output side rotating body, 33...
Bearing, 34... Input shaft, 35... Flange, 36... Bearing, 37... Output shaft, 38...
...Flange, 39...Rotated member, 39a...One end surface, 39b...Other parts, 41...First twisting member, 42...Second twisting member, 43...Flexible member, 45, 46 , 47, 48...Non-contact displacement meter, A...Common axis.

Claims (1)

[Claims for Utility Model Registration] (1) An input-side rotating body and an output-side rotating body arranged on the common axis so as to rotate around the common axis, and their input side and output side a rotated member arranged to face each of the mutually approaching end surfaces of the rotating body and rotated by the input side and output side rotating bodies around the common axis; a first torsion member installed between an end face and a corresponding one end face of the rotated member; and a first torsion member installed between an end face of the output side rotating body and another portion of the rotated member corresponding thereto; a second torsion member; and a non-contact displacement meter disposed near the rotated member to detect displacement of the rotated member along the common axis; A plurality of plate-shaped flexible members are supported by first and second torsion members, and the first torsion member is a plurality of plate-shaped flexible members arranged along a plurality of clockwise or counterclockwise spirals around the common axis. The second torsional member is comprised of a plurality of plate-shaped flexible members arranged along a plurality of counterclockwise (clockwise or clockwise) spirals around the common axis, Each flexible member of the first torsion member has one end fixed to an end face of the output-side rotating body and the other end fixed to one end face of the rotated member, and each flexible member of the second torsion member Each member has one end fixed to an end surface of the output-side rotating body and the other end fixed to another part of the rotated member, and when the output-side rotating body is rotated in an arbitrary direction, the first and that the rotated member is displaced in an arbitrary direction along the common axis by elastic deformation of the second torsion member, and the amount of this displacement is detected by the non-contact displacement meter and converted into a torque value. Characteristic torque detection device. (2) A utility model characterized in that the flexible members of the first or second torsion member each have the same shape and are arranged so as to be substantially rotationally symmetrical about the common axis. A torque detection device according to registered claim 1. (3) When the input-side and output-side rotating bodies are each slightly involuntarily displaced along the common axis, each of these displacements is detected and the displacement of the rotated member is corrected. 2. The torque detection device according to claim 1 or 2, which is characterized by comprising a non-contact displacement meter based on the following. (4) Utility model registration claim 1, characterized in that the utility model is provided with a non-contact displacement meter that detects the amount of inclination of the rotated member with respect to the common axis;
The torque detection device according to item 2 or 3. (5) the input side rotating body is a drive shaft;
The utility model registration claim is characterized in that the output-side rotating body is a driven shaft aligned in line with the driving shaft, or a gear or a belt wheel arranged around the driving shaft and the driven shaft. The torque detection device according to any one of.