JPS63120136U

JPS63120136U -

Info

Publication number: JPS63120136U
Application number: JP1098687U
Authority: JP
Priority date: 1987-01-28
Filing date: 1987-01-28
Publication date: 1988-08-03
Also published as: JPH0446184Y2; BR8702943A

Description

[Brief explanation of the drawing]

第１図は、本考案のトルク検出装置の具体的構
造を示す。第２図は、第１図の線―に沿つて
得られるトルク検出部の一実施例を示す。第３図
は、第１図に示されたトルク検出装置の電気回路
図を示す。第４図は、第３図の電気回路の動作に
かかる信号波形図である。第５図は、本考案のト
ルク検出装置によつて得られる出力（検出）信号
とトルクの方向との関係を示す。（符号説明）、１：ハウジング、３：トルク検
出軸、３ａ：入力端、３ｂ：出力端、８：電源一
次コイル、１１：電源二次コイル、１２：信号一
次コイル、１３：信号二次コイル、１６，１７：
環状の磁心、１６ａ〜１６ｄ：磁極片、１７ａ，
１７ｂ：突出部、１９ｐ：検出一次コイル、１９
ｓ：検出二次コイル。 FIG. 1 shows the specific structure of the torque detection device of the present invention. FIG. 2 shows an embodiment of the torque detection section obtained along the line - in FIG. FIG. 3 shows an electrical circuit diagram of the torque detection device shown in FIG. FIG. 4 is a signal waveform diagram relating to the operation of the electric circuit of FIG. 3. FIG. 5 shows the relationship between the output (detection) signal obtained by the torque detection device of the present invention and the direction of torque. (Description of symbols), 1: Housing, 3: Torque detection shaft, 3a: Input end, 3b: Output end, 8: Power supply primary coil, 11: Power supply secondary coil, 12: Signal primary coil, 13: Signal secondary coil , 16, 17:
Annular magnetic core, 16a-16d: magnetic pole piece, 17a,
17b: Protrusion, 19p: Detection primary coil, 19
s: Detection secondary coil.

Claims

[Claims for Utility Model Registration] Torque is detected according to the relative rotational displacement between the input end of a torque detection shaft that is rotatably provided in the housing and the output end that is rotatable following the rotation of the input end. A device comprising: a first annular magnetic core having a plurality of magnetic pole pieces and rotatable integrally with the input end of the torque detection shaft; disposed coaxially and facing the first annular magnetic core;
a second annular magnetic core rotatable integrally with the output end of the torque detection shaft; an annular power supply primary coil fixed on the inner periphery of the housing for inputting a reference signal from an AC power supply; Arranged coaxially opposite the power supply primary coil,
an annular power supply secondary coil rotatable integrally with the input end of the torque detection shaft; and a power supply secondary coil connected to the power supply secondary coil and continuously wound around the plurality of magnetic pole pieces of the first annular magnetic core. a detection primary coil that is connected to the detection secondary coil and that is connected to the torque detection shaft and that is connected to the detection secondary coil that is continuously wound around the plurality of magnetic pole pieces in order to detect the relative rotational displacement; an annular signal primary coil that is rotatable integrally with the input end; and an annular signal primary coil that is coaxially opposed to the signal primary coil and is arranged on the inner periphery of the housing to output a detection signal indicating the relative rotational displacement. A torque detection device comprising: a fixed annular signal secondary coil;