Oil-immersed sensor for locomotive

A sensor and locomotive oil technology, applied in the direction of instruments, measuring devices, electrical devices, etc., can solve the problems of limited range of use, impermissible sparks, poor safety, etc., achieve stable and reliable output signals, ensure contact reliability, and improve use The effect of longevity
CN101979957AInactive Publication Date: 2011-02-23江西天河传感器科技有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
江西天河传感器科技有限公司
Publication Date
2011-02-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an oil-immersed sensor for a locomotive, which consists of a conductive plastic angular displacement sensor, wherein the conductive plastic angular displacement sensor consists of a shell part, a rotating shaft part and a resistor body part; the shell part comprises a shell and a housing which are provided with leading-out ends integrated with the shell and the housing; the housing is integrated with the shell by screw threads to form a sealed space in which the rotating shaft part and the resistor body part are arranged; oil is filled in the sealed space; a rotating shaft of the rotating shaft part is extended out of the shell; the rotating shaft part is provided with an electric brush arm part which works on a substrate of a resistor body; the shell is provided with more than one oil hole; after the sealed space is filled with the oil, the oil holes are screwed by bolts; and the housing is provided with three or four flat leading-out ends. The oil-immersed sensor effectively prevents discharge breakdown on the contact surface of an electric brush and the resistor body under special conditions, reduces the coefficient of friction between the electric brush and the substrate surface of the resistor body, has greatly-prolonged service life, effectively ensures the reliability of contact between the electric brush and the surface of the resistor body, and outputs signals more stably and reliably with higher output accuracy.
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Description

technical field

[0001] The invention relates to a novel sensor which is operated and controlled by a half-sine wave generated by angle change, and belongs to the field of opto-mechanical-electrical integration. Background technique

[0002] At present, the traditional contact angular displacement sensor is widely used in electromechanical conversion components in industrial control shunt in optomechanical integration. Specifically, it is suitable for the operation control balance system in the field of train and industrial automation. However, this type of sensor has a limited working life, and the spark generated by contact short circuit is not allowed to be used in the field of electromechanical control with explosion-proof requirements, the scope of use is limited, and the safety is poor. Contents of the invention

[0003] The purpose of the present invention is to solve the above-mentioned problems in the traditional technology, provide a method that can overcome the ...

Claims

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