Water-lubricated thrust bearing tilting pad structure with temperature state monitoring function

Abstract

The invention discloses a water-lubricated thrust bearing tilting pad structure with a temperature state monitoring function, which comprises a rigid ball head, a supporting part, an elastic part, a mounting part, a substrate part and a pad surface part which are sequentially arranged from bottom to top and are connected with one another, and five arc-shaped grooves are formed in the upper surface of the substrate part at intervals; arc-shaped grooves are formed in the mounting part, a grating fiber sensor is embedded in each arc-shaped groove, the grating fiber sensors are used for monitoring the interface temperature of the substrate part and the tile surface part, eddy current sensors are connected to the four vertex angle positions of the mounting part respectively, and a flexible thermocouple sensor and a miniature thermocouple are arranged in the elastic part. A thin film thermocouple is embedded in the center of the rigid ball head. The problem that a tilting pad structure of a water-lubricated thrust bearing in the prior art does not have a temperature monitoring function is solved.

Description

Technical Field

[0001] This invention relates to the field of thrust bearing technology, and more specifically to a tilting pad structure for a water-lubricated thrust bearing with temperature monitoring function. Background Technology

[0002] Thrust bearings are bearings used to withstand axial forces and are widely used in various marine and pump products. Existing patent document CN120175747A discloses a water-lubricated thrust bearing tilting pad structure and injection system with temperature monitoring function. The tilting pad includes a pad seat and a filling medium. The pad seat includes a support part, an elastic part, and a mounting part arranged sequentially from bottom to top and connected to each other. The elastic part includes multiple hollow tubes arranged side-by-side and connected sequentially. The filling medium is used to fill each hollow tubular structure. The filling medium is formed by mixing a main agent and an auxiliary agent; the main agent is elastic, and the auxiliary agent is viscous.

[0003] In existing technologies, prolonged operation of tilting pad bearings may cause deformation of the pads, disrupting the formation of the oil film, and leading to wear and temperature increases. In addition, operating conditions (such as load and speed) may change beyond the bearing's design range, causing performance degradation or failure of the tilting pad bearing after prolonged use. Furthermore, there is a lack of effective online monitoring methods for tilting pad bearings during use, making it impossible to detect bearing abnormalities in a timely manner, which easily leads to performance degradation or failure after prolonged use. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide a water-lubricated thrust bearing tilting pad structure with temperature monitoring function, thereby solving the problem that the existing water-lubricated thrust bearing tilting pad structure does not have temperature monitoring function.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: This invention provides a tilting pad structure for a water-lubricated thrust bearing with temperature monitoring function, comprising: a pad base, which includes a rigid ball head, a support portion, an elastic portion, a mounting portion, a substrate portion, and a pad surface portion arranged sequentially from bottom to top and connected to each other; the upper surface of the substrate portion is provided with five arc-shaped grooves spaced apart, and each arc-shaped groove is embedded with a grating fiber optic sensor for monitoring the interface temperature between the substrate portion and the pad surface portion; eddy current sensors are respectively connected to the four apex positions of the mounting portion; a flexible thermocouple sensor and a miniature thermocouple are provided in the elastic portion; and a thin-film thermocouple is embedded in the center of the rigid ball head.

[0006] In some embodiments, the elastic portion includes a first elastic layer and a second elastic layer connected to each other. The first elastic layer is connected to a support portion, and the second elastic layer is connected to a mounting portion. The first elastic layer includes a plurality of first hollow tubes connected in parallel, and the second elastic layer includes a plurality of second hollow tubes connected in parallel. Each second hollow tube is connected to three first hollow tubes, and the plurality of first hollow tubes and the plurality of second hollow tubes, as well as the plurality of connection gaps between the first hollow tubes and the second hollow tubes, are filled with a filling medium.

[0007] In some embodiments, the diameter of the second hollow tube is twice the diameter of the first hollow tube, and the wall thickness of two adjacent second hollow tubes is 1.2-1.5 times the wall thickness of two adjacent first hollow tubes. In some embodiments, the hardness of the medium filling the plurality of first hollow tubes is Shore A 20-30, the hardness of the medium filling the plurality of connecting gaps is Shore A 10-20, and the hardness of the medium filling the plurality of second hollow tubes is Shore A 0-10.

[0008] In some embodiments, the plurality of first hollow tubes, the plurality of connecting gaps, and the filling medium inside the second hollow tube are all silicone.

[0009] In some embodiments, two microgrooves are formed on the inner wall of the second hollow tube at the center of the mounting portion, and the flexible thermocouple sensor is embedded in both microgrooves.

[0010] In some embodiments, the depth of the microgroove is 1 / 3 of the wall thickness of the second hollow tube, the bottom of the microgroove is provided with an aluminum oxide insulating layer, and the surface of the flexible thermocouple sensor is covered with a polyimide protective film.

[0011] In some embodiments, the miniature thermocouple is embedded in the filling medium of the second hollow tube at the center of the mounting portion, and the miniature thermocouple is installed at the same height as the two flexible thermocouple sensors.

[0012] In some embodiments, the support portion has a connecting groove, the upper end of the rigid ball head is fixed in the connecting groove, and the lower end of the rigid ball head extends out of the connecting groove.

[0013] In some embodiments, the mounting portion is provided with internal threaded holes at each of the four apex corners, and the eddy current sensor has an external threaded section that mates with the internal threaded holes.

[0014] Compared with existing technologies, the present invention provides a tilting pad structure for a water-lubricated thrust bearing with temperature monitoring function. The pad structure comprises, from bottom to top, a rigid ball head, a support portion, an elastic portion, a mounting portion, a substrate portion, and a pad surface portion, all sequentially arranged and interconnected. The upper surface of the substrate portion has five arc-shaped grooves spaced apart, each containing a grating fiber optic sensor for monitoring the interface temperature between the substrate portion and the pad surface portion. Eddy current sensors are connected to the four corners of the mounting portion. The elastic portion contains a flexible thermocouple sensor and a miniature thermocouple. A thin-film thermocouple is embedded in the center of the rigid ball head. This structure enables efficient operation and intelligent maintenance of the water-lubricated thrust bearing under high load and high speed water lubrication conditions. The multi-source information fusion diagnostic algorithm used monitors the operating conditions of the thrust bearing, significantly improving the accuracy of fault diagnosis and early warning capabilities, thereby enhancing the bearing's reliability, service life, and operational safety. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the tilting pad structure of the thrust bearing provided by the present invention; Figure 2 This is a schematic diagram of the thrust bearing tilting pad structure provided by the present invention after removing the pad surface; Figure 3 This is a schematic diagram of the thrust bearing tilting pad structure provided by the present invention after the filling medium has been removed; Figure 4 This is a schematic diagram of the intake unit provided by the present invention after removing the rigid ball joint; Figure 5 This is a front view of the thrust bearing tilting pad structure provided by the present invention; Figure 6 yes Figure 5 An enlarged schematic diagram of region A in the middle. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0017] To address the technical problem that existing water-lubricated thrust bearing tilting pad structures lack temperature monitoring capabilities, this solution provides a water-lubricated thrust bearing tilting pad structure with temperature condition monitoring functionality. This enhances the monitoring of the operating conditions of the tilting pad structure, thereby improving its reliability, service life, and operational safety.

[0018] Please see Figures 1-6 , Figures 1-6According to one embodiment of the present invention, a tilting pad structure of a water-lubricated thrust bearing with temperature monitoring function includes: a pad base 1, which includes a rigid ball head 11, a support portion 12, an elastic portion 13, a mounting portion 14, a substrate portion 15, and a pad surface portion 16 arranged sequentially from bottom to top and connected to each other. The upper surface of the substrate portion 15 is provided with five arc-shaped grooves spaced apart, and each arc-shaped groove is embedded with a grating fiber optic sensor 17. The grating fiber optic sensor 17 is used to monitor the interface temperature between the substrate portion 15 and the pad surface portion 16. The four apex positions of the mounting portion 14 are respectively connected to eddy current sensors 18. The elastic portion 13 is provided with a flexible thermocouple sensor 19 and a miniature thermocouple 20. The center position of the rigid ball head 11 is embedded with a thin film thermocouple 21.

[0019] It should be noted that the elastic part 13 includes a first elastic layer and a second elastic layer connected to each other. The first elastic layer is connected to the support part 12, and the second elastic layer is connected to the mounting part 14. The first elastic layer includes a plurality of first hollow tubes 131 connected in parallel, and the second elastic layer includes a plurality of second hollow tubes 132 connected in parallel. Each second hollow tube 132 is connected to three first hollow tubes 131. The plurality of first hollow tubes 131 and the plurality of second hollow tubes 132, as well as the plurality of connection gaps 13a between the first hollow tubes 131 and the second hollow tubes 132, are all filled with a filling medium 133.

[0020] Furthermore, the diameter of the second hollow tube 132 is twice the diameter of the first hollow tube 131, and the wall thickness of two adjacent second hollow tubes 132 is 1.2-1.5 times the wall thickness of two adjacent first hollow tubes 131. This stepped design allows the axial load to be transmitted smoothly along the wall thickness gradient, significantly reducing stress concentration. At the same time, the thin-walled area effectively absorbs vibration energy, improving the smoothness of bearing operation.

[0021] Furthermore, the hardness of the medium filling the plurality of first hollow tubes 131 is Shore A 20-30, the hardness of the medium filling the plurality of connecting gaps is Shore A 10-20, and the hardness of the medium filling the plurality of second hollow tubes 132 is Shore A 0-10.

[0022] It is understood that the first elastic layer consists of multiple radially penetrating and sequentially connected semi-circular hollow tubes, and the second elastic layer consists of multiple radially penetrating and sequentially connected semi-circular hollow tubes. The wall thickness of adjacent second hollow tubes changes gradually with the wall thickness and size of adjacent first hollow tubes, with the tube walls becoming thinner and the radius smaller from top to bottom. There are two layers in total. The thicker wall thickness and larger size of the upper layer of adjacent second hollow tubes can effectively disperse pressure and avoid local crushing. The thinner wall thickness and smaller size of the lower layer of adjacent first hollow tubes can play a spring effect, absorbing impact energy through flexible deformation. Under heavy load conditions, the load is transmitted smoothly along the tube wall gradient, greatly improving the bearing's compressive strength. High-frequency vibration is effectively dissipated by the thin-walled area, ensuring the stable operation of the equipment and extending the life of the bearing and its associated equipment.

[0023] It should be noted that the filling medium in the plurality of first hollow tubes 131, the plurality of connecting gaps, and the second hollow tube 132 is silicone 133. If the silicone has only a single hardness and no hardness variation, it cannot effectively absorb vibrations of different frequencies, and stress concentration is likely to occur at the interface between the first elastic layer and the second elastic layer.

[0024] Specifically, the hardness of the silicone gradually increases from top to bottom. Through the three-level gradient change of silicone hardness, the dynamic adaptability of the bearing is improved, vibrations of different frequencies are absorbed, interlayer shear stress is effectively reduced, and the problem of abrupt stress change at the interface between the first elastic layer and the second elastic layer is solved.

[0025] In this specific embodiment, the hardness of the silicone in the elastic part varies gradient from top to bottom, consisting of three layers. The hardness of the silicone increases from the upper layer to the lower layer. The upper layer of silicone is located within the upper second hollow tube and within multiple connecting gaps between multiple first hollow tubes and multiple second hollow tubes. The lower layer of silicone is located within multiple first hollow tubes. The three-level silicone filling used in this invention creates a continuous damping variation. The upper soft silicone dissipates high-frequency vibrations through viscoelastic deformation; the middle layer provides a smooth transition, bridging performance differences and eliminating the risk of interlayer delamination; the lower hard silicone provides rigid support, maintaining structural stability. The synergy of soft and hard silicone enables the bearing to simultaneously possess high-frequency vibration absorption and low-frequency anti-sway capabilities, effectively suppressing and absorbing vibrations of different frequencies.

[0026] It should be noted that, in one embodiment, the inner wall of the second hollow tube 132 at the center of the mounting part 14 is provided with two micro-grooves, and the flexible thermocouple sensor 19 is embedded in both micro-grooves.

[0027] Furthermore, the depth of the microgroove is 1 / 3 of the wall thickness of the second hollow tube 132, the bottom of the microgroove is provided with an aluminum oxide insulating layer, and the surface of the flexible thermocouple sensor 19 is covered with a polyimide protective film.

[0028] In one embodiment, the miniature thermocouple 20 is embedded in the filling medium of the second hollow tube 132 at the center of the mounting part 14, and the installation height of the miniature thermocouple 20 is the same as that of the two flexible thermocouple sensors 19. The monitoring positions of the miniature thermocouple 20 and the flexible thermocouple sensors 19 are on the same horizontal line, which facilitates the monitoring and calculation of the temperature difference between the two sensors and effectively monitors and evaluates the thermal damage of silicone.

[0029] Specifically, in one embodiment, the support portion 12 is provided with a connecting groove 12a, the upper end of the rigid ball head 11 is fixed in the connecting groove 12a, and the lower end of the rigid ball head 11 extends to the outside of the connecting groove 12a.

[0030] Specifically, the fiber grating sensor is a convenient and efficient embedded sensor with advantages such as strong anti-electromagnetic interference capability, corrosion resistance, and good electrical insulation performance. By embedding the fiber grating sensor between the substrate 15 and the bearing surface 16, the temperature of the friction surface can be monitored in real time, providing early warning of thermal damage and enabling timely repair, thereby improving the reliability and usability of the friction surface and extending the bearing's service life.

[0031] Understandably, the dimensions of the arc-shaped groove should match the dimensions of the grating fiber sensor 17 to ensure that the grating fiber sensor fills the arc-shaped groove, prevent the lubricating medium from entering, and reduce the water erosion and mud wear of the grating fiber sensor by the environment.

[0032] It should be noted that the arc curvature of the grating fiber sensor 17 should match the arc groove on the substrate 15. The grating fiber sensor 17 is bonded to the arc groove of the substrate 15 with high temperature resistant resin, and then the tile surface 16 is bonded. The upper surface of the grating fiber sensor 17 is in contact with the tile surface 16, so that the grating fiber sensor 17 can directly monitor the interface temperature between the substrate 15 and the tile surface 16.

[0033] In one embodiment, the grating fiber optic sensor 17 uses bare optical fiber, allowing the bare optical fiber to directly contact the heat source, eliminating the thermal resistance delay of traditional protective sleeves, improving the sensor's temperature measurement efficiency, and accelerating the thermal damage response speed of the friction surface.

[0034] Specifically, the grating fiber sensor 17 uses bare optical fiber to directly contact the heat source, eliminating the thermal resistance delay of traditional sheaths; the arc curvature of the grating fiber sensor 17 matches the contour of the tiltable tile, realizing full edge coverage of the grating fiber sensor 17, accurately capturing the interface hot spot between the substrate 15 and the tile surface 16, effectively accelerating the high temperature early warning speed, and improving the reliability and practicality of the tiltable tile.

[0035] In one embodiment, an eddy current sensor 18 is connected to each of the four apex positions of the mounting part 14. It should be noted that the lower part of the eddy current sensor 18 is provided with an external thread section, and the four apex positions of the mounting part 14 are provided with internal thread holes. The eddy current sensor 18 and the mounting part 14 are detachably connected by the external thread section and the internal thread hole. Furthermore, in one embodiment, the depth of the microgroove is 1 / 3 of the wall thickness of the second hollow tube, the bottom of the microgroove is provided with an aluminum oxide insulating layer, and the surface of the flexible thermocouple sensor 19 is covered with a polyimide protective film; by covering the surface of the flexible thermocouple sensor 19 with a polyimide protective film, the contact between the flexible thermocouple sensor 19 and the silicone is effectively isolated, allowing the flexible thermocouple sensor 19 to monitor only the temperature of the wall of the second hollow tube.

[0036] Among them, the flexible thermocouple transducer is a common contact temperature measurement device, which has the advantages of stable performance, simple structure and convenient use.

[0037] Understandably, by using a miniature thermocouple 20 embedded in the lowest hardness silicone core to directly reflect the working temperature of the elastic material and the temperature difference between the thermocouple and the temperature monitoring point of the second hollow tube wall, the heat conduction of the elastic part can be evaluated in real time. When the local temperature rises abnormally, it can provide timely warning of thermal damage to the second hollow tube and silicone, prevent elastic failure caused by silicone thermal aging, extend the service life of the elastic part, and improve the reliability and practicality of the elastic part.

[0038] Specifically, the temperature monitored at this location can effectively reflect the temperature of the rigid ball head 11 when the bearing is working. In addition, during installation, high-temperature resistant sealant needs to be filled into the installation channel of the thin film thermocouple 21 to protect the thin film thermocouple 21 from environmental water abrasion and corrosion.

[0039] Specifically, the present invention integrates a thin-film thermocouple 21 into the rigid ball head 11 to monitor the support node, which can accurately identify the support posture deviation caused by thermal expansion, avoid the jamming failure of the tilting pad, and ensure the safety of the bearing and its associated equipment.

[0040] It should be noted that this invention also describes a method for monitoring the temperature of a water-lubricated thrust bearing tilting pad structure with temperature condition monitoring function, comprising the following steps: S1: Five arc-shaped grating fiber optic sensors 17 are installed at the interface between the substrate 15 and the tile surface 16; two flexible thermocouple sensors 19 are embedded in the inner wall of the second hollow tube 132 at the center of the mounting part 14; a miniature thermocouple 20 is embedded in the silicone of the second hollow tube 132 at the center of the mounting part 14; a thin film thermocouple 21 is embedded in the center of the rigid ball head 11; the thrust bearing is made to work normally, and relevant test parameters are obtained, such as the interface temperature t1-5 between the substrate 15 and the tile surface 16, the tube wall temperature t6 of the second hollow tube 132, the silicone temperature t7, and the rigid ball head temperature t8. Step 2: Start the test rotating shaft and pass cooling water into the thrust bearing for lubrication and cooling to obtain the relevant parameters in Step 1, namely, the interface temperature t1-5 between the substrate 15 and the tile surface 16, the tube wall temperature t6 of the second hollow tube 122, the silicone temperature t7, and the rigid ball head temperature t8. Step 3: Based on the measured temperature parameters, provide early warning of high-temperature damage to the thrust bearing; If the interface temperature t1-5 > 150℃, it indicates a risk of thermal failure at the friction interface; immediately replace the damaged tilting tile at the corresponding alarm position. If the wall temperature t6 of the second hollow tube 132 > 100℃ for 10 minutes, it indicates that the temperature of the elastic part is too high, triggering an overheating warning for the elastic part. If the difference between the wall temperature t6 of the second hollow tube 132 and the silicone temperature t7, and |t6-t7| > 15℃, it is determined that the silicone has uneven thermal conductivity; it is recommended to stop the machine for inspection. If the temperature t8 of the rigid ball head > 120℃, it is determined that the rigid ball head structure has a risk of thermal deformation; immediately trigger an alarm.

[0041] In this technical solution, the thrust bearing adopts water lubrication and integrates a grating fiber optic sensor 17, an eddy current sensor 18, a flexible thermocouple sensor 19, a miniature thermocouple 20, and a thin-film thermocouple 21 for health status monitoring in the structure. This is used to collect bearing operating parameters in real time and perform health status assessment, fault diagnosis, and early warning through a multi-source information fusion algorithm.

[0042] Specifically, multiple grating fiber optic sensors arranged at the interface between the substrate and the tile surface are used to monitor the temperature distribution at the friction interface. Flexible thermocouple sensors arranged on the wall of the second hollow tube and miniature thermocouples embedded in the filling medium are used to monitor the temperature gradient of the elastic part. A thin-film thermocouple is placed at the center of the rigid ball head to monitor the temperature of the support node; The intelligent data processing unit receives signals from various sensors, incorporates a multi-source information fusion diagnostic algorithm, and executes the following processing flow: Signal preprocessing and feature extraction: The collected raw temperature and vibration signals are filtered and denoised to extract time-domain (mean, variance, kurtosis) and frequency-domain (spectral features) indicators.

[0043] Health status assessment algorithm: Friction surface health status: If the temperature of any interface is >150℃, or the temperature difference between interfaces (max-min) is >30℃, an alarm will be triggered indicating thermal damage or uneven wear of the friction surface.

[0044] Elastic part health status: If the temperature of the elastic part tube wall is >100℃ for 10 minutes, an alarm will be triggered indicating that the elastomer is overheating; if the temperature difference between the tube wall and the silicone core is |t6-t7|>15℃, an alarm will be triggered indicating that the silicone has abnormal thermal conductivity or has aged and failed.

[0045] Support structure health status: If the temperature of the rigid ball joint is >120℃, an alarm will be triggered indicating the risk of thermal deformation of the support structure.

[0046] Comprehensive vibration assessment: A comprehensive diagnosis is performed using temperature signals from four locations. A sudden temperature rise indicates a severe high-temperature fault; a gradual temperature change indicates that the bearing equipment is in good condition.

[0047] Fault Prediction and Temperature Management (PHM): Based on historical operating data, a temperature trend model is established to predict remaining useful life (RUL). Early warnings are issued when characteristic parameters deviate from the baseline by a certain margin.

[0048] Preferably, the data processing unit also has edge computing capabilities, enabling real-time diagnosis to be performed locally; it also supports uploading data to a cloud platform for long-term health status tracking and big data analysis.

[0049] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A tilting pad structure for a water-lubricated thrust bearing with temperature monitoring function, characterized in that, include: The tile base includes a rigid ball head, a support part, an elastic part, a mounting part, a substrate part, and a tile surface part, which are arranged sequentially from bottom to top and connected to each other. The upper surface of the substrate part is provided with five arc-shaped grooves at intervals, and each arc-shaped groove is embedded with a grating fiber optic sensor. The grating fiber optic sensor is used to monitor the interface temperature between the substrate part and the tile surface part. The four apex positions of the mounting part are also connected to eddy current sensors. The elastic part is provided with a flexible thermocouple sensor and a miniature thermocouple. The center position of the rigid ball head is embedded with a thin film thermocouple.

2. The tilting pad structure of a water-lubricated thrust bearing with temperature monitoring function according to claim 1, characterized in that, The elastic part includes a first elastic layer and a second elastic layer connected to each other. The first elastic layer is connected to the support part, and the second elastic layer is connected to the mounting part. The first elastic layer includes a plurality of first hollow tubes connected in parallel, and the second elastic layer includes a plurality of second hollow tubes connected in parallel. Each second hollow tube is connected to three first hollow tubes. The plurality of first hollow tubes and the plurality of second hollow tubes, as well as the plurality of connecting gaps between the first hollow tubes and the second hollow tubes, are filled with a filling medium.

3. The tilting pad structure of a water-lubricated thrust bearing with temperature monitoring function according to claim 2, characterized in that, The diameter of the second hollow tube is twice the diameter of the first hollow tube, and the wall thickness of two adjacent second hollow tubes is 1.2-1.5 times the wall thickness of two adjacent first hollow tubes.

4. The tilting pad structure of a water-lubricated thrust bearing with temperature monitoring function according to claim 2, characterized in that, The hardness of the medium filling the plurality of first hollow tubes is Shore A 20-30, the hardness of the medium filling the plurality of connecting gaps is Shore A 10-20, and the hardness of the medium filling the plurality of second hollow tubes is Shore A 0-10.

5. The tilting pad structure of a water-lubricated thrust bearing with temperature monitoring function according to claim 2, characterized in that, The multiple first hollow tubes, the multiple connecting gaps, and the filling medium inside the second hollow tube are all silicone.

6. The tilting pad structure of a water-lubricated thrust bearing with temperature monitoring function according to claim 2, characterized in that, Two microgrooves are formed on the inner wall of the second hollow tube at the center of the mounting part, and the flexible thermocouple sensor is embedded in both microgrooves.

7. The tilting pad structure of a water-lubricated thrust bearing with temperature monitoring function according to claim 6, characterized in that, The depth of the microgroove is 1 / 3 of the wall thickness of the second hollow tube. The bottom of the microgroove is provided with an aluminum oxide insulating layer, and the surface of the flexible thermocouple sensor is covered with a polyimide protective film.

8. The tilting pad structure of a water-lubricated thrust bearing with temperature monitoring function according to claim 7, characterized in that, The miniature thermocouple is embedded in the filling medium of the second hollow tube at the center of the mounting part, and the miniature thermocouple is installed at the same height as the two flexible thermocouple sensors.

9. The tilting pad structure of a water-lubricated thrust bearing with temperature monitoring function according to claim 7, characterized in that, The support portion has a connecting groove, the upper end of the rigid ball head is fixed in the connecting groove, and the lower end of the rigid ball head extends out of the connecting groove.

10. The tilting pad structure of a water-lubricated thrust bearing with temperature monitoring function according to claim 1, characterized in that, The mounting part has internal threaded holes at each of its four apex positions, and the eddy current sensor has an external threaded section that mates with the internal threaded holes.

Images