A high-speed piston compressor main bearing temperature measuring device

By installing a platinum resistance thermometer and a stainless steel tube in a high-speed piston compressor, the problem of difficult main bearing temperature monitoring under the compact design of the crankshaft connecting rod mechanism is solved, realizing direct measurement and early warning of main bearing temperature, and improving equipment safety and maintenance efficiency.

CN224552556UActive Publication Date: 2026-07-24SICHUAN KAICHUANG ELECTROMECHANICAL EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN KAICHUANG ELECTROMECHANICAL EQUIP CO LTD
Filing Date
2025-08-25
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In high-speed piston compressors, due to the compact design of the crankshaft connecting rod mechanism, there is a lack of space to directly monitor the temperature of the main bearing. As a result, existing technologies can only indirectly monitor the lubricating oil return temperature and cannot accurately monitor the temperature of the main bearing, which poses a safety hazard.

Method used

A temperature measuring device for the main bearing of a high-speed piston compressor is designed. By installing a platinum resistance digital display meter on the main bearing cover, and using a stainless steel tube and a through-wall connector to pass its signal line through the side wall of the compressor body, direct temperature measurement is achieved. A sealing structure is used to prevent lubricating oil leakage.

Benefits of technology

It enables direct and accurate monitoring and early warning of main bearing temperature, improves equipment safety, avoids failures caused by excessive temperature, and realizes the transformation from post-failure maintenance to predictive maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to temperature monitoring and early warning, interlock technical field of high -speed piston compression crankshaft main bearing, specifically related to a high -speed piston compressor main bearing temperature measuring device, including fuselage and crankshaft main shaft, the crankshaft main shaft rotation is installed in the inside of fuselage, the fixed mounting of crankshaft main shaft has a main shaft cover and second main shaft cover, is set up with tapping thread on a main shaft cover and second main shaft cover, tapping thread installs straight -through pipe joint, straight -through pipe joint sets up and has the through -hole, the through -hole is connected with stainless steel pipe, fixed mounting has the through -wall screw rod in the threaded hole, the utility model discloses a platinum resistance is embedded to a main shaft cover and second main shaft cover, can directly accurate measurement to the temperature of main shaft, can better carry out the supervision and early warning to main shaft temperature, through the stainless steel pipe of setting, let platinum resistance signal line pass through stainless steel pipe, make in the work operation time not have the risk of fracture, through the specially designed through -wall joint, when connecting stainless steel pipe has good sealing property.
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