Device for detecting absolute rotation angle and torque

A technology of absolute rotation and detection device, which is applied in the direction of measuring device, torque measurement, transportation and packaging, etc., and can solve the problems of larger detection device, non-detection of absolute angle, and larger size of detection device
CN1701221AInactive Publication Date: 2005-11-23PANASONIC CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
PANASONIC CORP
Publication Date
2005-11-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

A detector of an absolute rotation angle and torque is disclosed. The detector includes a first gear (1) coupled to an input shaft (2) of a torsion-bar unit, a gear A (6) engaging with the first gear (1), and a first detecting section of an absolute rotation angle placed at the center of the gear A (6). The detector also includes a second gear (3) coupled to an output shaft (4) of the torsion-bar unit, a gear B (7) engaging with the second gear (3), and a second detecting section of an absolute angle placed at the center of gear B (7).
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Description

technical field

[0001] The present invention relates to a device mounted on a torsion bar that simultaneously detects absolute rotational angle and torque. The detecting device of the present invention is used in a power steering device of an automobile and the like. Background technique

[0002] Image 6 It is an existing detection device for rotation angle and torque. The gear 18 is mounted on an input shaft (not shown) of the torsion bar. A gear 21 cooperating with the gear 18 has a circular symbol plate 20 with a plurality of magnetic poles. The symbol plate 20 rotates with the rotation of the input shaft. The magnetic detection element 22 detects the rotation angle of the input shaft by counting the number of rotating magnetic poles. The gear 42 is mounted on the output shaft (not shown) of the torsion bar, and the rotation angle of the output shaft is detected in the same manner as above. When the torsion bar is activated to twist the shaft, the torque is detected...

Claims

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