Locking type bearing bush temperature sensor

Abstract

The utility model discloses a locking type bearing bush temperature sensor, and aims to solve the problems that a traditional sensor is easy to fall off when vibrated on a bearing bush and is complex in structure. The locking type bearing bush temperature sensor comprises a sensor assembly and a locking assembly, the sensor assembly is arranged in a mounting hole of a bearing bush, and the locking assembly is connected with the mounting hole; the sensor assembly comprises a probe and a connecting part, the probe is fixedly connected with the connecting part, the locking assembly is connected with the probe through the connecting part, and the probe abuts against the inner side of the mounting hole. The sensor assembly is reinforced through the locking assembly, rapid assembly and disassembly between the sensor assembly and the bearing bush are achieved, and the maintenance and replacement efficiency of the bearing bush temperature sensor is improved. Reliable connection between the sensor assembly and the bearing bush is ensured, loosening between the sensor assembly and the bearing bush can be effectively avoided in the equipment operation process, it is ensured that the probe abuts against the inner side of the installation hole all the time, and continuity and accuracy of temperature measurement are ensured.

Description

Technical Field

[0001] This utility model relates to the field of temperature detection technology, and in particular to a locking type bearing temperature sensor. Background Technology

[0002] Generator bearings, as key components for supporting and reducing friction, are crucial for the stable operation of the generator. Bearings are divided into integral and split types, and are typically placed in critical positions such as the outer ring of the rotor main shaft to support the main shaft or counteract radial forces. During normal operation, generator bearings should be within a certain temperature range. However, poor lubrication, uneven load, or material damage can cause the bearing temperature to become excessively high, thus affecting generator performance.

[0003] Existing adhesive or embedded sensors have problems such as being easily detached by vibration, leading to inaccurate temperature measurement, and having a complex structure, resulting in excessively long maintenance time. Utility Model Content

[0004] The purpose of this invention is to provide a locking type bearing temperature sensor, which aims to solve the problems of traditional sensors being prone to falling off due to vibration and having a complex structure that is inconvenient to maintain.

[0005] To address the aforementioned problems, this utility model provides a locking type bearing temperature sensor, comprising a sensor assembly and a locking assembly. The sensor assembly is disposed within a mounting hole in the bearing, and the locking assembly is connected to the mounting hole.

[0006] The sensor assembly includes a probe and a connecting part. The probe is fixedly connected to the connecting part. The locking assembly is connected to the probe through the connecting part. The probe abuts against the inside of the mounting hole.

[0007] Preferably, the diameter of the probe is larger than the diameter of the connecting part, and one end of the locking assembly abuts against the probe.

[0008] Preferably, the locking assembly includes a locking part and a spring, the spring being sleeved on the connecting part, one end of the spring abutting against the locking part, and the other end of the spring abutting against the probe.

[0009] Preferably, the locking part is sleeved on the connecting part, and the locking part is rotatable relative to the connecting part.

[0010] Preferably, the diameter of the probe is smaller than the diameter of the connecting part, and one end of the locking assembly abuts against the connecting part.

[0011] Preferably, the locking assembly includes a locking part, the connecting part includes a first part and a second part, the first part is fixedly connected to the second part, the probe is connected to the first part, the locking part is sleeved on the second part, and one end of the locking part abuts against the first part.

[0012] Preferably, the mounting hole includes a first hole portion and a second hole portion, wherein the diameter of the first hole portion is adapted to the diameter of the probe, and the diameter of the second hole portion is larger than the diameter of the first portion.

[0013] Preferably, the locking assembly is threadedly connected to the mounting hole.

[0014] Preferably, the connecting part is sleeved on the optical cable, and the end of the optical cable is provided with a temperature-sensing material and placed inside the probe.

[0015] Preferably, the connecting portion extends to the outside of the locking assembly.

[0016] With this setup, during temperature detection of the bearing bush, axial clamping force is applied by the locking assembly, ensuring tight contact between the probe and the inner side of the mounting hole in the bearing bush, thus enabling temperature measurement inside the bearing bush. Reinforcing the sensor assembly with the locking assembly allows for quick installation and removal of the sensor assembly from the bearing bush, improving the efficiency of maintenance and replacement of the bearing bush temperature sensor. Furthermore, it ensures a reliable connection between the sensor assembly and the bearing bush, effectively preventing loosening during equipment operation and ensuring the probe remains in contact with the inner side of the mounting hole, guaranteeing continuous and accurate temperature measurement. Additionally, by mounting the sensor assembly in the bearing bush's mounting hole via the locking assembly, the sensor assembly can be replaced individually, improving the efficiency of sensor assembly recycling and replacement, and saving costs. Attached Figure Description

[0017] Figure 1 This is an exploded view of the structure of a locking bearing temperature sensor according to one embodiment of the present invention;

[0018] Figure 2 This is a front view of a locking bearing temperature sensor according to one embodiment of the present invention.

[0019] Figure 3 yes Figure 2 Schematic diagram of section AA;

[0020] Figure 4 yes Figure 3 A magnified schematic diagram of part A in the middle;

[0021] Figure 5This is an exploded view of the structure of a locking bearing temperature sensor according to another embodiment of the present invention;

[0022] Figure 6 This is a front view of a locking bearing temperature sensor according to another embodiment of the present invention.

[0023] Figure 7 yes Figure 6 Schematic diagram of the BB section;

[0024] Figure 8 yes Figure 7 A magnified schematic diagram of part B in the middle.

[0025] Figure label:

[0026] 1. Sensor assembly; 11. Probe; 12. Connecting part; 101. Probe; 102. Connecting part; 1021. First part; 1022. Second part;

[0027] 2. Locking assembly; 21. Locking part; 22. Spring;

[0028] 3. Bearing bush; 3a. Mounting hole; 30a. Mounting hole; 301a. First hole portion; 302a. Second hole portion;

[0029] 4. Optical fiber cable. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0031] The accompanying drawings show schematic diagrams of layer structures according to embodiments of the present invention. These drawings are not to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0032] In the description of this utility model, it should be noted that the terms "first", "second" and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] This invention provides a locking type bearing shell temperature sensor, including a sensor assembly 1 and a locking assembly 2. The sensor assembly 1 is disposed within a mounting hole 3a in a bearing shell 3, and the locking assembly 2 is connected to the mounting hole 3a. The sensor assembly 1 includes a probe 11 and a connecting part 12. The probe 11 is fixedly connected to the connecting part 12, and the locking assembly 2 is connected to the probe 11 through the connecting part 12. The probe 11 abuts against the inner side of the mounting hole 3a. Specifically, the probe 11 directly contacts the bearing shell 3, senses temperature changes through its internal sensitive element, converts the temperature physical quantity into a transmittable signal, senses the temperature of the bearing shell 3, and transmits the temperature signal. The locking assembly 2 is connected to the mounting hole 3a, and a force is applied to securely install the sensor assembly 1 within the mounting hole 3a of the bearing shell 3, transmitting the force to the connecting part 12 and the probe 11, thus achieving sensor fastening. With this configuration, during temperature detection of the bearing shell 3, the locking assembly 2 applies an axial clamping force, thereby tightly contacting the probe 11 with the inner side of the mounting hole 3a of the bearing shell 3, achieving temperature measurement inside the bearing shell 3. The locking assembly 2 reinforces the sensor assembly 1, enabling quick installation and removal between the sensor assembly 1 and the bearing shell 3, thus improving the efficiency of maintenance and replacement of the bearing shell temperature sensor. It also ensures a reliable connection between the sensor assembly 1 and the bearing shell 3, effectively preventing loosening during equipment operation and ensuring that the probe 11 remains in contact with the inside of the mounting hole 3a, guaranteeing the continuity and accuracy of temperature measurement. Furthermore, by installing the sensor assembly 1 in the mounting hole 3a of the bearing shell 3 via the locking assembly 2, the sensor assembly 1 can be replaced individually, improving the efficiency of sensor assembly 1 recycling and replacement, and saving costs.

[0034] It should be noted that the specific structure of the bearing bush 3 is not limited here, nor is the specific position of the mounting hole 3a on the bearing bush 3. The sensor assembly 1 can be installed within the mounting hole 3a, and the locking component 2 can be used in conjunction with the mounting hole 3a to securely install the sensor assembly 1. The specific connection method between the locking component and the mounting hole 3a is also not limited. In optional cases, the locking component 2 and the mounting hole 3a can be connected by threads, riveting, or interference fit. In the preferred case, the locking component 2 and the mounting hole 3a are threaded together. Specifically, threads are provided on the outer side of the locking component 2 and the inner side of the mounting hole 3a, and the threads of both engage to connect the locking component 2 and the mounting hole 3a. This configuration allows for quick locking and installation of the sensor assembly 1, facilitating its disassembly, installation, and maintenance.

[0035] The type of signal transmitted by the temperature sensor is not limited here; it can be an optical signal or an electrical signal, as long as it can convert the physical quantity of the temperature of the bearing 3 into a transmittable signal. In a preferred embodiment, signal transmission is achieved by connecting an optical cable 4 to the sensor assembly 1. Specifically, the connector 12 is sleeved on the optical cable 4, and a temperature-sensing material is placed at the end of the optical cable 4 and located inside the probe 11. Utilizing the transmission characteristics of light, the temperature signal at the probe 11 is converted into an optical signal and then quickly and accurately transmitted to external equipment for analysis and processing. Using the optical cable 4 as the signal transmission medium has many advantages. First, the optical cable 4 has extremely strong anti-electromagnetic interference capabilities. In the complex electromagnetic environment where the bearing 3 is located, such as the electromagnetic interference generated by equipment like motors and frequency converters, it can ensure that the temperature signal is not disturbed and is accurately transmitted to external equipment. Second, the transmission speed of the optical signal in the optical cable 4 is extremely fast, enabling rapid transmission of the temperature signal, reducing signal transmission delay, and improving the real-time performance of the measurement. Furthermore, the optical cable 4 has high transmission accuracy and low signal attenuation, ensuring high accuracy and reliability of the measurement results. The design of the connector 12, which is mounted on the optical cable 4 and connected to the probe 11, organically combines the optical cable 4 with the sensor assembly 1, giving full play to the advantages of the optical cable 4 in signal transmission and improving the performance of the entire sensor system. The specific temperature-sensing material is not limited here; it can be gallium arsenide, fluorescence, fiber optic gratings, Fabry-Perot cavities, etc., as long as it can achieve temperature sensing inside the probe and transmit it to external devices via the optical cable.

[0036] In a preferred embodiment, the connecting portion 12 extends to the outside of the locking assembly 2. This extension provides convenient operating space for connecting the connecting portion 12 to external devices. Extending the connecting portion 12 to the outside of the locking assembly 2 further protects the optical cable 4, preventing direct contact between the optical cable 4 and the locking assembly 2, thus avoiding damage to the optical cable 4 during installation and removal. This improves the service life and stability of the optical cable 4.

[0037] Example 1

[0038] Combination Figures 1 to 4One embodiment of this utility model provides a locking type bearing temperature sensor, including a sensor assembly 1 and a locking assembly 2. The sensor assembly 1 is disposed in a mounting hole 3a of the bearing 3, and the locking assembly 2 is connected to the mounting hole 3a. The sensor assembly 1 includes a probe 11 and a connecting part 12. The probe 11 is fixedly connected to the connecting part 12, and the locking assembly 2 is connected to the probe 11 through the connecting part 12. The probe 11 abuts against the inner side of the mounting hole 3a. The diameter of the probe 11 is larger than the diameter of the connecting part 12, and one end of the locking assembly 2 abuts against the probe 11. When the locking assembly 2 applies pressure to the probe 11, the larger diameter probe 11 can provide a larger force-bearing area, making the pressure distribution more uniform. This not only ensures that the probe 11 fits tightly against the inner side of the mounting hole 3a of the bearing 3, reducing measurement errors caused by poor contact, but also better resists the influence of external interference factors such as vibration and impact on the position of the probe 11 during the operation of the bearing 3, maintaining a stable contact state, thereby greatly improving the accuracy and stability of temperature measurement and ensuring that the sensor can accurately reflect the true temperature of the bearing 3.

[0039] It should be noted that the specific manner in which the locking component 2 abuts against the probe 11 is not limited. The locking component 2 can abut against the probe 11 directly, or it can abut against the probe 11 via a spring. In a preferred embodiment, the locking component 2 includes a locking part 21 and a spring 22. The spring 22 is sleeved on the connecting part 12, with one end abutting against the locking part 21 and the other end abutting against the probe 11. Specifically, the locking part 21 is connected to the mounting hole 3a, applying force to securely mount the sensor assembly 1 within the mounting hole 3a of the bearing shell 3. The spring 22 is sleeved on the connecting part 12, with both ends abutting against the locking part 21 and the probe 11 respectively, providing elastic force to compensate for minor gaps during installation and ensuring continuous tight contact between the probe 11 and the bearing shell 3. This configuration provides the spring 22 with dynamic adaptive adjustment capability for the installation and use of the sensor. During installation, due to factors such as machining accuracy and assembly errors, minor gaps may exist between the sensor assembly 1 and the mounting hole 3a of the bearing shell 3, or the sensor may not be properly installed. The elastic deformation of spring 22 automatically compensates for these minute deviations, ensuring tight contact between probe 11 and the surface of bearing 3. During operation, vibrations are inevitable in bearing 3; spring 22 absorbs and buffers this vibrational energy, preventing probe 11 from loosening or shifting due to vibration, and maintaining good contact with bearing 3 at all times. This design significantly improves measurement accuracy, reduces measurement fluctuations caused by unstable contact, enhances sensor reliability and lifespan, and reduces the risk of failure due to vibration.

[0040] It should be noted that the locking part 21 is fitted onto the connecting part 12. When installing and fixing the sensor assembly 1, the locking part 21 can rotate or move together with the connecting part 12 to achieve the installation of the sensor assembly 1, or the locking part 21 and the connecting part 12 can move relative to each other. In the preferred case, the locking part 21 is fitted onto the connecting part 12, and the locking part 21 is rotatable relative to the connecting part 12. Specifically, the rotatable characteristic of the locking part 21 gives the installation process great convenience and flexibility. The angle of the locking part 21 can be easily adjusted to accurately align it with the mounting hole 3a of the bearing bush 3, avoiding installation difficulties or loose connections caused by angular deviations. Moreover, when applying force by rotating the locking part 21, the force can be transmitted to the connecting part 12 and the probe 11 more evenly, preventing the probe 11 from tilting or the local pressure from being too high or too low due to uneven force, further ensuring the stability of the sensor installation and the accuracy of the measurement, and improving the efficiency and quality of the entire installation process.

[0041] Example 2

[0042] Combination Figures 5 to 8 In another embodiment of this utility model, a locking type bearing temperature sensor is provided, including a sensor assembly 1 and a locking assembly 2. The sensor assembly 1 is disposed within a mounting hole 30a in the bearing 3, and the locking assembly 2 is connected to the mounting hole 30a. The sensor assembly 1 includes a probe 101 and a connecting part 102. The probe 101 is fixedly connected to the connecting part 102, and the locking assembly 2 is connected to the probe 101 through the connecting part 102. The probe 101 abuts against the inner side of the mounting hole 30a. The diameter of the probe 101 is smaller than the diameter of the connecting part 102, and one end of the locking assembly 2 abuts against the connecting part 102. In some special application scenarios, such as when the internal space of the bearing 3 is limited, the overall volume of the sensor is strictly limited, or the installation environment has special requirements for the shape of the sensor, this structure can better meet the needs. The smaller diameter probe 101 can be more easily installed in some confined spaces. At the same time, the connection method between the connecting part 102 and the locking component 2 can also be designed according to specific circumstances, which broadens the application range of the sensor and enables it to be used in more complex and varied working conditions, meeting the diverse needs of different users and application scenarios.

[0043] In a preferred embodiment, the locking assembly 2 includes a locking part 21, and the connecting part 102 includes a first part 1021 and a second part 1022. The first part 1021 and the second part 1022 are fixedly connected. The probe 101 is connected to the first part 1021, and the locking part 21 is sleeved on the second part 1022, with one end of the locking part 21 abutting against the first part 1021. Specifically, the diameter of the first part 1021 is larger than the diameter of the second part 1022. When the locking part 21 is sleeved on the second part 1022, the end of the locking part 21 abuts against the first part 1021, thereby placing the probe 101 within the mounting hole 30a. The specific manner in which the locking part 21 abuts against the first part 1021 is not limited; it can be a direct abutment between the locking part 21 and the first part 1021, or it can be achieved by using a spring.

[0044] It should be noted that the specific structural form of the mounting hole 30a is not limited here, as long as it can accommodate the probe 101 and allow the locking part 21 to be installed. Optionally, the mounting hole 30a can be a single-section structure with an inner diameter slightly larger than the diameter of the first part 1021, i.e., the internal diameter of the mounting hole 30a is uniform and cylindrical, connecting to the locking part 21; or the mounting hole 30a can be divided into two sections, respectively accommodating the probe 101 and the first part 1021 of the connecting part 102. Specifically, the mounting hole 30a includes a first section 301a and a second section 302a. The diameter of the first section 301a is adapted to the diameter of the probe 101, and the diameter of the second section 302a is larger than the diameter of the first part 1021. This segmented design of the mounting hole 30a achieves a precise fit with the structure of the sensor assembly 1. The first hole 301a is adapted to the diameter of the probe 101, providing precise positioning for the probe 101 and ensuring that it is accurately installed at the predetermined measurement position on the bearing 3, thus guaranteeing the accuracy and consistency of temperature measurement. The second hole 302a has a larger diameter, providing sufficient operating space for the installation of the connecting part 102 and the locking part 21. This allows operators to easily install the connecting part 102 and the locking part 21 into the appropriate position, avoiding installation difficulties caused by insufficient installation space. Simultaneously, this design also facilitates fine-tuning of the sensor assembly 1 during installation, ensuring its verticality and horizontality, further improving installation quality and measurement accuracy.

[0045] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A locking type bearing temperature sensor, characterized in that, The locking type bearing temperature sensor includes a sensor assembly (1) and a locking assembly (2). The sensor assembly (1) is disposed in the mounting hole (3a) of the bearing (3), and the locking assembly (2) is connected to the mounting hole (3a). The sensor assembly (1) includes a probe (11) and a connecting part (12). The probe (11) is fixedly connected to the connecting part (12). The locking assembly (2) is connected to the probe (11) through the connecting part (12). The probe (11) abuts against the inside of the mounting hole (3a).

2. The locking type bearing temperature sensor according to claim 1, characterized in that, The diameter of the probe (11) is larger than the diameter of the connecting part (12), and one end of the locking assembly (2) abuts against the probe (11).

3. The locking type bearing temperature sensor according to claim 2, characterized in that, The locking assembly (2) includes a locking part (21) and a spring (22). The spring (22) is sleeved on the connecting part (12). One end of the spring (22) abuts against the locking part (21), and the other end of the spring (22) abuts against the probe (11).

4. The locking type bearing temperature sensor according to claim 3, characterized in that, The locking part (21) is sleeved on the connecting part (12), and the locking part (21) is rotatable relative to the connecting part (12).

5. The locking type bearing temperature sensor according to claim 1, characterized in that, The diameter of the probe (11) is smaller than the diameter of the connecting part (12), and one end of the locking assembly (2) abuts against the connecting part (12).

6. The locking type bearing temperature sensor according to claim 5, characterized in that, The locking assembly (2) includes a locking part (21), and the connecting part (12) includes a first part (1021) and a second part (1022). The first part (1021) is fixedly connected to the second part (1022), the probe (11) is connected to the first part (1021), the locking part (21) is sleeved on the second part (1022), and one end of the locking part (21) abuts against the second part (1022).

7. The locking type bearing temperature sensor according to claim 6, characterized in that, The mounting hole (3a) includes a first hole portion (301a) and a second hole portion (302a). The diameter of the first hole portion (301a) is adapted to the diameter of the probe (11), and the diameter of the second hole portion (302a) is larger than the diameter of the first portion (1021).

8. The locking type bearing temperature sensor according to claim 1, characterized in that, The locking assembly (2) is threadedly connected to the mounting hole (3a).

9. The locking type bearing temperature sensor according to claim 1, characterized in that, The connecting part (12) is sleeved on the optical cable (4), and the end of the optical cable (4) is provided with a temperature-sensitive material and placed inside the probe (11).

10. The locking type bearing temperature sensor according to claim 9, characterized in that, The connecting part (12) extends to the outside of the locking assembly (2).

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