New type sensor for measuring temperature of bearing

A technology for temperature measurement sensors and bearings, applied in the fields of instrumentation and temperature measurement sensors, can solve the problems of lead breakage, connecting pipe bending, squeezing or breaking of rigid connecting pipes, etc., so as to prevent squashing or breaking and increase guiding performance , the effect of reducing the heat transfer area
CN1687723AInactive Publication Date: 2005-10-26ι™ˆεΏ—ζˆ
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
ι™ˆεΏ—ζˆ
Publication Date
2005-10-26
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention is a new type of bearing thermometric sensor, which comprises the temperature-sensing head, the guide sleeve, the spring, the connecting pipes and the down-leads. The temperature-sensing head is equipped with the temperature-sensing components (the heat resistance or the heat electric couple). It is characterized in that it adopts the short contacting face temperature-sensing head with hollow guide rob at the bottom and the flexible connecting pipes that can be the sealing winding spring structure or the coiled pipe structure. The effects of the inventions are: 1. avoid the falling and breaking off phenomena of the down-leads of the head when the using and transporting of the sensor; 2. overcome the breaking of the down-leads when curving of the sensor; 3. improve the sensibility.
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Description

technical field

[0001] The invention belongs to the field of instruments and meters, in particular to the field of temperature measuring sensors. Background technique

[0002] In order to ensure the reliability of large fans in power plants, bearing temperature sensors (thermal resistors or thermocouples) are commonly used in power plants at home and abroad to automatically monitor the actual temperature of bearings. The basic structure of the existing bearing temperature measuring sensor is composed of a temperature sensing head, a guide sleeve, a spring, a rigid connecting pipe and a lead wire. The existing structure is unreasonable: 1. The outer surface of the temperature sensing head has a large contact area with the guide sleeve, and at the same time the contact area between the guide sleeve and the end surface of the bearing is large, resulting in high thermal inertia and poor sensitivity of the temperature measuring sensor; 2. The temperature sensing head is bonded to...

Claims

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