JPS60193434U

JPS60193434U - Rotating body torque measuring device

Info

Publication number: JPS60193434U
Application number: JP8183584U
Authority: JP
Inventors: 和正鷲見; 和男吉川; 英男荒川; 博文小松原
Original assignee: 株式会社豊田中央研究所
Priority date: 1984-05-31
Filing date: 1984-05-31
Publication date: 1985-12-23
Also published as: JPH0512748Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案の第１の実施例を表わす断面図、第２図
は支持手段の構造を示す斜視図、第３図は電気回路図、
第４図は第２の実施例を表わす断面図、第５図は従来装
置の一例を示す断面図、第６図はこの従来装置を用いて
トルク計測を行う状態を示す正面図、第７図は他の従来
装置を示す斜視図である。３Ｃ・・・ケース、１０・・・計測円筒部、１１．１２
・・・フランジ、１３．１４・・・厚肉部、４０・・・
支持手段、４１・・・第１のコイル、４２．４７・・・
第２のコイル、４７Ｋ・・・コア、４８・・・支持手段
、５６・・・周波数追従回路、■・・・計測中空円筒、
■・・・センサ、■・・・送信回路、■・・・送受手段
、■・・・受信演算回路。Fig. 1 is a sectional view showing the first embodiment of the present invention, Fig. 2 is a perspective view showing the structure of the support means, Fig. 3 is an electric circuit diagram,
FIG. 4 is a sectional view showing the second embodiment, FIG. 5 is a sectional view showing an example of a conventional device, FIG. 6 is a front view showing a state in which torque measurement is performed using this conventional device, and FIG. 7 FIG. 2 is a perspective view showing another conventional device. 3C...Case, 10...Measuring cylinder part, 11.12
...Flange, 13.14...Thick wall part, 40...
Supporting means, 41...first coil, 42.47...
Second coil, 47K... Core, 48... Support means, 56... Frequency tracking circuit, ■... Measurement hollow cylinder,
■...Sensor, ■...Transmitting circuit, ■...Transmitting/receiving means, ■...Receiving calculation circuit.

Claims

[Scope of utility model registration request]

(1) A measurement hollow cylinder with flanges at both ends for fixing to the rotating body whose torque is to be measured, and a predetermined wall thickness and diameter, and a physical quantity corresponding to the torque acting on this measurement hollow cylinder is detected. a transmitting circuit fixedly disposed within the inner diameter of one end of the measuring hollow cylinder and converting a signal output by the sensor into a transmitting signal; and a first coil disposed annularly along the flange portion of the one end. and a second coil that is supported by a support means fixed to a stationary part and is placed close to and opposed to the first coil and supplies power for driving the sensor and the transmitting circuit by magnetic coupling; A rotating body torque measuring device comprising a receiving calculation circuit that receives a signal transmitted by a transmitting circuit and calculates the torque acting on the rotating body based on the signal output by a sensor.

(2) The first coil of the transmitting/receiving means is connected to a transmitting circuit and constitutes a transmitting antenna for transmitting radio waves;
The rotating body torque measuring device according to claim 1, wherein the coil constitutes a receiving antenna for receiving transmitted radio waves.

(3) A transmitting antenna that is connected to the transmitting circuit and transmits the transmitted radio waves is disposed at an appropriate location on the measurement hollow cylinder, and a receiving antenna that receives the transmitted radio wave is disposed at an appropriate location on the stationary side. A rotating body torque measuring device according to claim (1) of the utility model registration claim.

(4) Practical use characterized in that a thick walled portion having a wall thickness of 1/m or more of the inner diameter of the measuring cylinder is formed at the connecting portion between the flanges at both ends of the measuring hollow cylinder and the measuring cylinder. A rotating body torque measuring device according to claim (1) of patent registration.

(5) A utility model characterized in that the sensor is disposed at a position that is at least twice the difference between the thickness of the thick part and the thickness of the other parts from the central end of the thick part. A rotating body torque measuring device according to registered claim (4).

(6) The transmitting circuit is inserted into a case made of a magnetic material, and the case is coaxially arranged and fixed to the inner diameter part of the measurement hollow cylinder. The rotating body torque measuring device described in (1).

(7) The second coil is constituted by a coil formed in an annular shape corresponding to the first coil, and the first coil extends over the entire circumference of the coil.
A rotating body torque measuring device according to claim (1) of the utility model registration, characterized in that the second coil and the second coil face each other.

(8) The second coil is constructed by winding a coil around a substantially U-shaped magnetic core, and is arranged opposite to a predetermined portion of the annular first coil. A rotating body torque measuring device according to claim (1) of the registered utility model, characterized in that:

(9) The rotating body torque measuring device according to claim (7) of the utility model registration, characterized in that the supporting means and the second coil supported by the supporting means have a split structure and are detachable. . 110 Frequency tracking in which the reception calculation circuit detects the reception frequency and detects the change in the center frequency of the transmission circuit, thereby changing and tuning the tuning frequency in response to the change in the center frequency of the transmission circuit. A rotating body torque measuring device according to claim (1) of the utility model registration, characterized by comprising a circuit.