Non-contact sensor probe fixing device for testing rotor vibration
By designing a quadrature adjustment seat with a hollow cavity in the middle, the problem of the sensor probe installation method is difficult to ensure that the center of the circle is in the center of the rotor, and the precise control of the distance and position between the sensor and the rotor is achieved, which improves the testing accuracy and reduces economic losses.
Patent Information
- Application Number
- CN202520144507.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2035-01-22
AI Technical Summary
The existing sensor probe installation method is difficult to ensure that the center of the circle is in the center of the rotor, which affects the test effect and accuracy, and it is difficult to control the distance accuracy between the sensor and the rotor, resulting in sensor scrapping and economic losses.
A quadrature adjustment seat with a hollow cavity in the middle is designed. Through the position adjustment of the adjustment seat and the installation method of the sensor probe, the distance and position between the sensor probe and the rotor are accurate, and dynamic and accurate measurement is achieved.
This device can ensure the test effect and accuracy of the sensor probe, reduce the scrap rate of the sensor probe, reduce economic losses, and realize dynamic measurement.
Smart Images
Figure CN222671216U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fixing devices, and specifically provides a non-contact sensor probe fixing device for testing rotor vibration. Background Art
[0002] Rotor vibration test is an important means to test rotor performance and stability, and plays a positive role in preventing and reducing equipment accidents. The vibration state test of the rotating rotor in motion usually requires the use of a non-contact sensor probe for testing. The non-contact sensor probe is a device that can measure and detect the parameters or state of the target object without physical contact. The installation and fixation of the sensor probe position is an important guarantee for realizing the rotor vibration state test.
[0003] In the rotor vibration test, one, two or more non-contact sensor probes are required to test the rotor according to different application scenario requirements of the rotor to be tested. The current sensor probe installation method and device have the following problems:
[0004] 1. It is difficult to ensure that the center of the circle formed by the connection lines of each sensor probe is on the central axis of the rotor, which will seriously affect the test effect and test accuracy of the sensor probe;
[0005] 2. It is difficult to control the distance accuracy between the installed sensor probe and the rotor. After the sensor probe is installed, poor control of the distance between the sensor probe and the rotor will cause the sensor to be scrapped, resulting in greater economic losses;
[0006] 3. It is difficult to achieve dynamic and accurate measurement.
[0007] In summary, in order to avoid the above problems, it is necessary to design a non-contact sensor probe fixing device for testing rotor vibration that can ensure test results, reduce test costs, and improve test versatility. Utility Model Content
[0008] In order to solve the above problems, the utility model provides a non-contact sensor probe fixing device for testing rotor vibration.
[0009] The utility model provides a non-contact sensor probe fixing device for testing rotor vibration, comprising a square adjustment seat with a central hollow cavity, wherein the central hollow cavity is used to accommodate the rotor and a test gap is included between the cavity wall of the central hollow cavity and the outer end surface of the rotor;
[0010] The two side faces 1 on the adjustment seat that are parallel to the two end faces of the rotor are square faces; the face on the adjustment seat that is located on the outer side of the circumferential direction of the rotor cylindrical face includes an upper top face, a lower bottom face and two mutually parallel side faces 2, the upper top face and the lower bottom face are parallel to each other, and the upper top face, the lower bottom face, the two side faces 2 and the two side faces 1 together form six faces of the adjustment seat; the upper top face is provided with an installation adjustment hole 1, the lower bottom face is provided with an installation adjustment hole 2, and the two side faces 2 are respectively provided with installation adjustment holes 3 and 4; the installation adjustment holes 1, 2, 3 and 4 are all through-hole structures with internal threads;
[0011] Before the position of the adjustment seat is adjusted, the first, second, third and fourth installation adjustment holes are respectively provided with adjustment screws for adjusting the position of the adjustment seat. After the position of the adjustment seat is adjusted, the middle hollow cavity is coaxial with the rotor and a sensor probe is provided in at least one of the first, second, third and fourth installation adjustment holes;
[0012] A sliding base is arranged below the adjusting seat, a supporting frame is arranged between the adjusting seat and the sliding base, and the adjusting seat can slide horizontally on the sliding base along the axial direction of the rotor.
[0013] Furthermore, installation adjustment hole one is opened at the exact center of the upper top surface, installation adjustment hole two is opened at the exact center of the lower bottom surface, installation adjustment hole three and installation adjustment hole four are respectively opened at the exact centers of the two side surfaces two, and installation adjustment hole one, installation adjustment hole two, installation adjustment hole three and installation adjustment hole four are located on the same plane; when the position of the adjustment seat is adjusted, the center of the plane is located on the rotating shaft of the rotor.
[0014] Furthermore, two groups of connection holes for connecting the support frame are evenly opened on the outside of the installation adjustment hole three and the installation adjustment hole four on the side surface two; a fastening screw is provided in the connection hole and a gasket group and a fastening nut located on the outside of the support frame are provided on the fastening screw, and the gasket group is located between the fastening nut and the support frame.
[0015] Furthermore, the support frame includes a vertical plate connected to the adjustment seat and a horizontal plate located above the sliding base; the vertical plate is provided with a receiving groove located between the two groups of connecting holes, and the groove width of the receiving groove is larger than the aperture of the installation adjustment hole three and the installation adjustment hole four.
[0016] Furthermore, a sliding groove is provided on the sliding base along the axial direction of the rotor, and sliding wheels located on the inner sides of the support frames on both sides are slidably connected in the sliding groove. A connecting rod is provided between the two sliding wheels and the connecting rod is connected to the support frame.
[0017] Furthermore, the sliding wheel is sleeved on the connecting rod, a connecting bearing is provided between the sliding wheel and the connecting rod, a fastening hole is provided on the vertical plate below the accommodating groove, the connecting rod passes through the fastening hole and includes a fastening section extending to the outside of the support frame, a butterfly fastening bolt is provided on the fastening section and the connecting rod is fixed to the support frame by the butterfly fastening bolt.
[0018] Furthermore, a guide groove located outside the sliding groove is provided on the sliding base, and a guide wheel located in the guide groove is provided below the transverse plate.
[0019] Furthermore, the gasket set includes a solid gasket and an open gasket used in combination, and the open gasket is located between the solid gasket and the fastening nut.
[0020] Furthermore, multiple evenly arranged retractable winding frames are provided around the center point of the upper top surface, the center point of the lower bottom surface, and the center points of the two side surfaces; the winding frame includes a telescopic rod and an anti-drop platform located at one end of the telescopic rod away from the adjustment seat.
[0021] Furthermore, after the position of the adjustment seat is adjusted and before the sensor probe is installed, a simulation test piece is circumferentially arranged in the middle of the cavity wall of the central hollow cavity, and the simulation test piece is made of hard silicone; the thickness of the simulation test piece is consistent with the thickness of the sensor probe located in the central hollow cavity.
[0022] Compared with the prior art, the utility model can achieve the following beneficial effects: the sensor probe fixing device in this scheme can ensure the test effect and test accuracy of the sensor probe, can reduce the scrap rate of the sensor probe, reduce economic losses, and can realize dynamic measurement. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the overall structure of the sensor probe fixing device provided according to the first embodiment of the utility model (a state after the position of the adjustment seat is adjusted and the sensor probe is installed);
[0024] Figure 2 yes Figure 1 A top view of
[0025] Figure 3 yes Figure 2 Sectional view in the AA direction;
[0026] Figure 4 yes Figure 1 Right view of;
[0027] Figure 5 It is a structural schematic diagram of a fastening screw provided according to the first embodiment of the utility model;
[0028] Figure 6It is a schematic diagram of the structure of the adjustment seat provided according to the first embodiment of the utility model (a schematic diagram of installing a simulation test piece on the inner wall of the central hollow cavity after the position of the adjustment seat is adjusted and before the sensor probe is installed);
[0029] Figure 7 is a top view of a sensor probe fixing device provided according to Embodiment 2 of the present utility model;
[0030] Figure 8 It is a structural schematic diagram of a winding frame provided according to the second embodiment of the utility model;
[0031] Fig. 9 It is a structural schematic diagram of the guide wheel and the guide groove provided according to the second embodiment of the utility model.
[0032] The accompanying drawings include: adjusting seat 1, middle hollow cavity 2, rotor 3, test gap 4, side one 5, upper top surface 6, lower bottom surface 7, side two 8, installation adjustment hole one 9, installation adjustment hole four 10, sliding base 11, fastening screw 12, fastening nut 13, open gasket 14, solid gasket 15, vertical plate 16, horizontal plate 17, sliding groove 18, sliding wheel 19, connecting rod 20, supporting frame 21, connecting bearing 22, butterfly fastening bolt 23, guide groove 24, anti-slip platform 25, handle 26, simulated test piece 27, sensor probe 28, guide wheel 29, winding frame 30, telescopic rod 31, and accommodating groove 32. DETAILED DESCRIPTION
[0033] The following is combined with Figure 1-9 It should be understood that the specific embodiments described herein are only used to explain the present invention and do not constitute a limitation on the present invention. Embodiment 1
[0034] In this embodiment, Figure 1-Figure 6 shown.
[0035] A non-contact sensor probe fixing device for testing rotor vibration includes a square adjustment seat 1 with a central hollow cavity 2, the central hollow cavity 2 is used to accommodate a rotor 3, and a test gap 4 is included between the cavity wall of the central hollow cavity 2 and the outer end surface of the rotor 3. When testing, the sensor probe 28 extends into the test gap 4, a sliding base 11 is provided below the adjustment seat 1, and a support frame 21 is provided between the adjustment seat 1 and the sliding base 11. The adjustment seat 1 can slide horizontally on the sliding base 11 along the axial direction of the rotor 3. The axial direction of the rotor 3 is as shown in FIG. Figure 2 As shown in the L direction.
[0036] The inner diameter of the middle hollow cavity 2 is larger than the inner diameter of the tested rotor 3. Considering that the inner diameters of the rotor 3 tested in actual engineering are different, the distance between the required inner diameter of the middle hollow cavity 2 and the inner diameter of the rotor is also different. Specifically, it is necessary to ensure that the following effects are met: when the rotor is static, the straight-line distance between the sensor probe 28 and the outer wall of the tested rotor 3 has sufficient adjustable margin to enable the sensor probe 28 to perform vibration testing on the tested rotor 3 at a suitable position during the operation of the rotor 3; considering the vibration during the rotation of the tested rotor 3, the setting of the inner diameter of the middle hollow cavity 2 also needs to ensure that the rotor rotation process will not be restricted by the inner wall of the middle hollow cavity 2; during design, in order to ensure the accuracy of the installation and measurement of the sensor probe 28, the distance between the inner diameter of the middle hollow cavity 2 and the inner diameter of the tested rotor 3 should not be too large, otherwise it will affect the accuracy of the sensor measurement.
[0037] The two side faces 5 on the adjusting seat 1 of the cubic structure parallel to the two end faces of the rotor 3 are square faces. Assuming that the side length of the side face 5 is d1 and the inner diameter of the middle hollow cavity 2 is d2, d1>d2+10mm, it can ensure stability and ensure that the middle hollow cavity 2 has sufficient accommodation space. d1, d2 are as follows: Figure 3 as shown in .
[0038] The surface of the adjustment seat 1 located on the outer side of the cylindrical surface of the rotor 3 in the circumferential direction includes an upper top surface 6, a lower bottom surface 7 and two mutually parallel side surfaces 8. The upper top surface 6 and the lower bottom surface 7 are parallel to each other. The upper top surface 6, the lower bottom surface 7, and the two side surfaces 8 are square surfaces or rectangular surfaces. The upper top surface 6, the lower bottom surface 7, the two side surfaces 8 and the two side surfaces 5 together form the six surfaces of the adjustment seat 1. The upper top surface 6, the lower bottom surface 7, the two side surfaces 8 and the two side surfaces 5 are as shown in FIG. Figure 6 As shown, Figure 6 Another side surface 5 that cannot be directly shown is the surface indicated by arrow N. The two side surfaces 5 are parallel. Figure 6 Another side surface 28 which cannot be shown intuitively is as shown by arrow M, and the two side surfaces 28 are parallel, and a handle 26 is provided on the upper top surface 6 to facilitate installation and placement of the adjustment seat 1.
[0039] An installation adjustment hole 19 is provided on the upper top surface 6, an installation adjustment hole 2 is provided on the lower bottom surface 7, and an installation adjustment hole 3 and an installation adjustment hole 4 10 are respectively provided on the two side surfaces 28. The installation adjustment hole 19, the installation adjustment hole 2, the installation adjustment hole 3 and the installation adjustment hole 4 10 are all through-hole structures with internal threads. Specifically, the installation adjustment hole 19 is provided at the center of the upper top surface 6, the installation adjustment hole 2 is provided at the center of the lower bottom surface 7, the installation adjustment hole 3 and the installation adjustment hole 4 10 are respectively provided at the center of the two side surfaces 28, and the installation adjustment hole 19, the installation adjustment hole 2, the installation adjustment hole 3 and the installation adjustment hole 4 10 are located on the same plane S, and the plane S is as shown in FIG. Figure 6As shown in the S plane in FIG. 1 , when the position of the adjustment seat 1 is adjusted, the center of the plane S is located on the rotation axis of the rotor 3. The rotation axis of the rotor 3 is as shown in FIG. Figure 1 The Z axis is shown in FIG.
[0040] Two groups of connecting holes for connecting the support frame 21 are evenly opened on the side surface 2 8 on the outside of the installation adjustment hole 3 and the installation adjustment hole 4 10, and a fastening screw 12 is arranged in the connecting hole. The fastening screw 12 is provided with a gasket group and a fastening nut 13 located on the outside of the support frame 21, and the gasket group is located between the fastening nut 13 and the support frame 21. The gasket group includes a solid gasket 15 and an open gasket 14 used in combination. The open gasket 14 is located between the solid gasket 15 and the fastening nut 13. The open gasket 14 and the solid gasket 15 are used in combination to improve the sealing performance, are suitable for different working conditions, can enhance the mechanical strength, disperse the pressure, improve the vibration resistance, enhance the convenience of installation and maintenance, extend the service life, and improve the comprehensive performance.
[0041] The support frame 21 includes a vertical plate 16 connected to the adjustment seat 1 and a horizontal plate 17 located above the sliding base 11, that is, the support frame 21 is an L-shaped plate with a simple structure and good supporting performance. A receiving groove 32 located between two groups of connecting holes is opened on the vertical plate 16, and the groove width W of the receiving groove 32 is greater than the aperture of the installation adjustment hole three and the installation adjustment hole four 10 to meet the installation requirements of the sensor probe 28 and the adjustment requirements of the adjustment seat 1.
[0042] A sliding groove 18 is provided on the sliding base 11 along the axial direction of the rotor 3, and a sliding wheel 19 located on the inner side of the support frames 21 on both sides is slidably connected in the sliding groove 18. A connecting rod 20 is provided between the two sliding wheels 19, and the connecting rod 20 is connected to the support frame 21. The sliding wheel 19 is sleeved on the connecting rod 20, and a connecting bearing 22 is provided between the sliding wheel 19 and the connecting rod 20. When performing a dynamic test, the adjusting seat 1 can be adjusted to the axial position by sliding the sliding wheel 19 in the sliding groove 18 to realize the dynamic test of the rotor 3.
[0043] A fastening hole is provided on the vertical plate 16 below the accommodating groove 32, the connecting rod 20 passes through the fastening hole and includes a fastening section extending to the outside of the support frame 21, and a butterfly fastening bolt 23 is provided on the fastening section. The connecting rod 20 is fixed to the support frame 21 by the butterfly fastening bolt 23. The butterfly fastening bolt 23 has a large bearing area, which is convenient for manual tightening, and is easy to install, flexible to adjust, reliable in preventing loosening, beautiful and practical, low in cost, and has a wide range of applications.
[0044] After the position of the adjustment seat 1 is adjusted and before the sensor probe 28 is installed, the middle part of the cavity wall of the middle hollow cavity 2 is provided with a Figure 6The simulated test piece 27 shown in the figure is made of hard silicone. During the simulated test process, it will neither cause damage to the surface of the rotor 3 nor be easily deformed due to being too soft. The thickness of the simulated test piece 27 is consistent with the thickness of the sensor probe 28 located in the middle hollow cavity 2.
[0045] Before the position of the adjustment seat 1 is adjusted, the installation adjustment hole 1 9, the installation adjustment hole 2, the installation adjustment hole 3 and the installation adjustment hole 4 10 are respectively provided with adjustment screws for adjusting the position of the adjustment seat 1. The vertical position of the adjustment seat 1 is adjusted by turning the adjustment screws in the installation adjustment hole 1 9 and the installation adjustment hole 2, and the lateral position of the adjustment seat 1 is adjusted by turning the installation adjustment hole 3 and the installation adjustment hole 4 10. After the position of the adjustment seat 1 is adjusted, the middle hollow cavity 2 is coaxial with the rotor 3 and a sensor probe 28 is provided in at least one of the installation adjustment hole 1 9, the installation adjustment hole 2, the installation adjustment hole 3 or the installation adjustment hole 4 10. In this embodiment, a total of 4 sensor probes are provided. When four sensor probes 28 are provided, the vibration data of the rotor 3 can be measured from four directions. Considering the installation positions of the four sensor probes 28 in the device, a more accurate axial trajectory of the rotation of the rotor 3 to be measured can be calculated through four data.
[0046] A person skilled in the art may also set one or two sensor probes 28 according to actual needs. When only one sensor probe 28 is set, it can be used to measure the vibration state data of the rotor 3 during the rotation operation in a certain direction; when two sensor probes 28 located in different directions in the vertical and lateral directions are set, they can be used to measure the vibration state data of the rotor 3 during the rotation operation in two directions.
[0047] When in use, first install four adjusting screws of the same specifications into the installation adjustment hole 1 9, the installation adjustment hole 2, the installation adjustment hole 3 and the installation adjustment hole 4 10 respectively, and turn the installation adjustment hole 1 9 and the installation adjustment hole 2 as needed to move the adjustment seat 1 vertically, and turn the installation adjustment hole 3 and the installation adjustment hole 4 10 as needed to move the adjustment seat 1 laterally, until it is adjusted to the middle hollow cavity 2 and the rotor 3 are coaxial. The method for judging whether the adjustment seat 1 is adjusted into place is to judge by the length of the adjusting screw located on the outside of the adjustment seat 1.
[0048] Install the support frame 21 on the adjustment seat 1, and install the simulated test piece 27 on the cavity wall of the middle hollow cavity 2. The thickness of the simulated test piece 27 is determined by the length of the sensor probe 28 required to extend into the middle hollow cavity 2 under the current working condition. The length of the sensor probe 28 required to extend into the middle hollow cavity 2 is determined by the distance between the sensor probe 28 and the rotor 3 under the required working condition. Start the test and observe whether there is any abnormal sound.
[0049] If there is an abnormal sound, it means that the distance between the sensor probe 28 and the rotor 3 needs to be adjusted, and the sensor probe 28 cannot be installed as originally planned (the price of the sensor probe 28 ranges from several thousand to tens of thousands. Once installed, if the performance is poor, it will be scrapped after disassembly). It is necessary to adjust the length of the sensor probe 28 required to extend into the middle hollow cavity 2, adjust the thickness of the simulated test piece 27, and test again until the test is qualified.
[0050] If there is no abnormal sound, it means that the distance between the sensor probe 28 and the rotor 3 is appropriate. At this time, install the sensor probe 28 in the installation adjustment hole 1 9, the installation adjustment hole 2, the installation adjustment hole 3 and the installation adjustment hole 4 10, and start the rotor 3 for testing. Embodiment 2
[0051] In this embodiment, Figure 7-Figure 9 shown.
[0052] The difference between this embodiment and the first embodiment is that a plurality of evenly arranged retractable winding frames 30 are provided around the center point of the upper top surface 6, around the center point of the lower bottom surface 7, and around the center points of the two side surfaces 8. The winding frame 30 includes a telescopic rod 31 and an anti-slip platform 25 located at the end of the telescopic rod 31 away from the adjustment seat 1. When in use, the wire of the sensor probe 28 can be wound around the telescopic rod 31 and can be prevented from slipping by the anti-slip platform 25. The telescopic rod 31 can be retracted and retracted according to the required length of the wire to be wound to adjust the length of the wire available for winding.
[0053] A guide groove 24 is provided on the sliding base 11 and is located outside the sliding groove 18. A guide wheel 29 is provided below the cross plate 17 and is located in the guide groove 24. When performing dynamic testing, the guide wheel 29 can slide laterally in the guide groove 24, which can provide better support and guiding capability.
[0054] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A non-contact sensor probe fixing device for testing rotor vibration, characterized in that: It comprises a square adjustment seat with a central hollow cavity, wherein the central hollow cavity is used to accommodate a rotor and a test gap is included between the cavity wall of the central hollow cavity and the outer end surface of the rotor; The two side faces 1 on the adjustment seat that are parallel to the two end faces of the rotor are square faces; the face on the adjustment seat that is located on the outer side of the circumferential direction of the rotor cylindrical face includes an upper top face, a lower bottom face and two mutually parallel side faces 2, the upper top face and the lower bottom face are parallel to each other, and the upper top face, the lower bottom face, the two side faces 2 and the two side faces 1 together form six faces of the adjustment seat; the upper top face is provided with an installation adjustment hole 1, the lower bottom face is provided with an installation adjustment hole 2, and the two side faces 2 are respectively provided with installation adjustment holes 3 and 4; the installation adjustment holes 1, 2, 3 and 4 are all through-hole structures with internal threads; The middle hollow cavity is coaxial with the rotor, and at least one of the first installation adjustment hole, the second installation adjustment hole, the third installation adjustment hole or the fourth installation adjustment hole is provided with a sensor probe; A sliding base is arranged below the adjusting seat, a supporting frame is arranged between the adjusting seat and the sliding base, and the adjusting seat can slide horizontally on the sliding base along the axial direction of the rotor.
2. The non-contact sensor probe fixing device for testing rotor vibration according to claim 1, characterized in that: The installation adjustment hole 1 is opened at the exact center of the upper top surface, the installation adjustment hole 2 is opened at the exact center of the lower bottom surface, the installation adjustment hole 3 and the installation adjustment hole 4 are respectively opened at the exact centers of the two side surfaces 2, and the installation adjustment hole 1, the installation adjustment hole 2, the installation adjustment hole 3 and the installation adjustment hole 4 are located on the same plane; when the position of the adjustment seat is adjusted, the center of the plane is located on the rotating shaft of the rotor.
3. The non-contact sensor probe fixing device for testing rotor vibration according to claim 2, characterized in that: Two groups of connection holes for connecting the support frame are evenly opened on the side surface two, outside the installation adjustment hole three and the installation adjustment hole four; a fastening screw is provided in the connection hole and a gasket group and a fastening nut located outside the support frame are provided on the fastening screw, and the gasket group is located between the fastening nut and the support frame.
4. The non-contact sensor probe fixing device for testing rotor vibration according to claim 3, characterized in that: The support frame includes a vertical plate connected to the adjustment seat and a horizontal plate located above the sliding base; the vertical plate is provided with a receiving groove located between the two groups of connecting holes, and the groove width of the receiving groove is larger than the aperture of the installation adjustment hole three and the installation adjustment hole four.
5. The non-contact sensor probe fixing device for testing rotor vibration according to claim 4, characterized in that: The sliding base is provided with a sliding groove along the axial direction of the rotor, and sliding wheels located on the inner sides of the support frames on both sides are slidably connected in the sliding groove. A connecting rod is provided between the two sliding wheels and the connecting rod is connected to the support frame.
6. The non-contact sensor probe fixing device for testing rotor vibration according to claim 5, characterized in that: The sliding wheel is sleeved on the connecting rod, a connecting bearing is provided between the sliding wheel and the connecting rod, a fastening hole is provided on the vertical plate below the accommodating groove, the connecting rod passes through the fastening hole and includes a fastening section extending to the outside of the support frame, a butterfly fastening bolt is provided on the fastening section, and the connecting rod is fixed to the support frame by the butterfly fastening bolt.
7. The non-contact sensor probe fixing device for testing rotor vibration according to claim 6, characterized in that: The sliding base is provided with a guide groove located outside the sliding groove, and a guide wheel located in the guide groove is arranged below the transverse plate.
8. The non-contact sensor probe fixing device for testing rotor vibration according to claim 7, characterized in that: The gasket set comprises a solid gasket and an open gasket used in combination, and the open gasket is located between the solid gasket and the fastening nut.
9. The non-contact sensor probe fixing device for testing rotor vibration according to claim 8, characterized in that: A plurality of evenly arranged retractable winding frames are arranged around the center point of the upper top surface, the center point of the lower bottom surface, and the center points of the two side surfaces; the winding frame comprises a telescopic rod and an anti-drop platform located at one end of the telescopic rod away from the adjustment seat.