Electromechanical monitoring device and monitoring method

By designing the monitoring ring and load ring, and combining the contact plate, contact rod and load wheel, multi-state vibration monitoring of the drive shaft under no-load and load conditions is realized, which solves the problem of single monitoring data in the existing technology and improves the monitoring accuracy.

CN119509947BActive Publication Date: 2025-10-28HONGYANG ELECTRIC MOTOR (WEIHAI) CO LTD
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Patent Information

Application Number
CN202411766552.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-04
Publication Date
2025-10-28
Estimated Expiration
2044-12-04

AI Technical Summary

Technical Problem

Existing vibration monitoring devices can only monitor the drive shaft under no-load conditions, and cannot fully obtain vibration data under actual use conditions, resulting in limited monitoring data.

Method used

A combination of a monitoring ring and a vibration sensor is used. The monitoring ring is equipped with a contact plate and a contact rod. Combined with a load ring and a load wheel, multi-state vibration monitoring is performed under drive shaft rotation and load conditions. Flexible connection and adjustment components are used to ensure that the contact plate is in close contact with the drive shaft, and data is collected by the vibration sensor.

Benefits of technology

It improves the accuracy of vibration monitoring, enabling comprehensive collection of vibration data under both no-load and loaded conditions of the drive shaft, thus solving the problem of limited monitoring data in existing technologies.

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Abstract

This invention discloses an electromechanical monitoring device, belonging to the field of electromechanical monitoring. The electromechanical monitoring device includes a first frame and a second frame, and further includes: a monitoring ring and a vibration sensor for detecting vibration of the drive shaft of the electromechanical equipment. Two sets of contact plates are symmetrically arranged within the monitoring ring, and the contact plates are fitted against the surface of the drive shaft of the electromechanical equipment. A load ring is used to provide load to the drive shaft of the electromechanical equipment, and load wheels are arranged in a ring at equal intervals within the load ring. When the drive shaft rotates and vibrates, this invention utilizes an elastically connected contact rod to drive a pin-connected pressure rod to trigger the vibration sensor for data collection, effectively improving the accuracy of the monitoring data. By adjusting the two sets of linkage plates on the inner wall of the ring compression mechanism, the linkage plates drive the second frame to generate a certain displacement towards the center of the monitoring ring, thereby ensuring a tight fit between the contact plates and the drive shaft, further improving the accuracy of the monitoring data under load.
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Description

Technical Field

[0001] This invention relates to the field of electromechanical monitoring technology, and in particular to an electromechanical monitoring device and monitoring method. Background Technology

[0002] Mechanical technology is the foundation of mechatronics. The focus of mechanical technology is on how to adapt to mechatronics technology, using other high and new technologies to update concepts and achieve changes in structure, materials, and performance to meet the requirements of reducing weight, shrinking volume, improving precision, increasing rigidity, and improving performance. In the manufacturing process of mechatronics systems, classical mechanical theories and processes should be aided by computer-aided technology, while artificial intelligence and expert systems should be adopted to form a new generation of mechanical manufacturing technology.

[0003] During the operation of electromechanical equipment, vibrations may occur, which may lead to collisions with related connecting mechanisms. Due to the impact force, the electromechanical equipment or related connecting mechanisms may be damaged, thereby shortening the service life of the electromechanical equipment. Existing vibration monitoring devices can only monitor the vibration of the drive shaft under no-load conditions and cannot fully obtain the vibration data of the drive shaft under actual use conditions, resulting in limited monitoring data. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that existing vibration monitoring devices can only monitor the vibration of drive shafts under no-load conditions and cannot fully obtain vibration data of drive shafts under actual use conditions, resulting in limited monitoring data. Therefore, this invention proposes an electromechanical monitoring device and monitoring method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An electromechanical monitoring device includes a first frame and a second frame, and further includes: a monitoring ring and a vibration sensor for detecting vibration of a drive shaft of an electromechanical device, wherein two sets of contact plates are symmetrically arranged in the monitoring ring and the contact plates are attached to the surface of the drive shaft of the electromechanical device; and a load ring for providing load to the drive shaft of the electromechanical device, wherein load wheels are arranged in a ring at equal intervals in the load ring.

[0007] Preferably, a connecting rod is connected between the first frame and the second frame, the monitoring ring is disposed between the first frame and the second frame, and the outer surface of the monitoring ring is arranged with second connecting blocks in an equidistant array, and the connecting rod is connected through the second connecting blocks.

[0008] To enable the touch rod to reciprocate vertically triggered by vibration, the monitoring ring is further equipped with a ring-shaped equidistant array of limiting sleeves. A first spring is provided inside the limiting sleeves, and a touch rod is slidably connected inside the limiting sleeves. The touch plate is fixedly connected to the bottom end of the touch rod. Sliding grooves are symmetrically opened on both sides of the limiting sleeves. Limiters are fixedly installed on the surface of the touch rod, and the protrusions on both sides of the limiters are slidably connected to the sliding grooves.

[0009] To enable the up-and-down sliding of the contact rod to trigger the vibration sensor's monitoring function, the top of the contact rod passes through the limiting sleeve and extends to the outside of the limiting sleeve. A pressure rod is pinned to the top of the limiting sleeve. An mounting plate is fixedly installed on the top of the second frame. Two sets of upright plates are fixedly installed on the mounting plate. The pressure rod is pinned between the two sets of upright plates at the center position. The vibration sensor is fixedly installed on the mounting plate, and one end of the pressure rod is fitted to the contact of the vibration sensor.

[0010] Preferably, the load ring has a ring-shaped equidistant array of vibration sleeves, the vibration sleeves are threadedly connected to a screw, one end of the screw is rotatably connected to a wheel seat, and the load wheel is rotatably connected to the wheel seat.

[0011] To ensure smooth sliding of the wheel seat within the load ring, two sets of detachable limiting shafts are symmetrically arranged on both sides of the wheel seat. The top of the limiting shaft is threaded to the wheel seat, and the limiting shaft is slidably connected within the load ring. A second spring is symmetrically connected between the vibration sleeve and the load ring.

[0012] Preferably, an adjusting shaft and a guide rod are connected between the second frame and the load ring. The adjusting shaft and the guide rod are arranged in a ring at equal intervals on the outer wall of the load ring. A second connecting block is also provided on the outer wall of the load ring. The guide rod and the second connecting block are slidably inserted into each other. A first connecting block is provided on the outer wall of the load ring. The adjusting shaft passes through the first connecting block. Guide sleeves are provided in both the first and second connecting blocks.

[0013] To facilitate the movement of the load ring on the drive shaft surface and adapt to vibration monitoring under load conditions on drive shafts of different lengths, an adjustment assembly is provided between the adjustment shaft and the first connecting block. The adjustment assembly includes a rack and a gear. A slot is provided inside the adjustment shaft, and the rack is fixedly installed in the slot. The gear is rotatably installed in the first connecting block via an adjustment rod. The rack and gear are meshed together, and a damping bearing is provided between the adjustment rod and the first connecting block.

[0014] Preferably, a linkage plate is fixedly installed on one side of the outer wall of the limiting sleeve. The end of the linkage plate away from the limiting sleeve is inclined. An adjustment ring is sleeved on the outside of the two sets of linkage plates. The adjustment ring is configured as a conical ring structure. The inner wall of the adjustment ring and the inclined surface of the linkage plate are slidably fitted together. The adjustment ring and the load ring are fixedly connected.

[0015] A monitoring method includes the following steps:

[0016] Step 1: Fix the electromechanical equipment to be tested, the first frame, and the second frame on the monitoring platform, so that the drive shaft of the electromechanical equipment passes through the monitoring ring, the adjustment ring, and the load ring in sequence. Adjust the suction cup feet at the bottom of the first frame and the second frame to make the monitoring ring concentric with the drive shaft of the electromechanical equipment.

[0017] Step 2: Simultaneously start the electromechanical equipment and vibration sensor. If the drive shaft of the electromechanical equipment vibrates during rotation, the vibration will cause the pressure rod to rotate around the pin center inside the vertical plate through the contact plate and contact rod, thereby triggering the vibration sensor to detect and record the monitoring data.

[0018] Step 3: Rotate the screw to make the load wheel and the drive shaft surface of the electromechanical equipment under test fit together, apply load to the drive shaft, repeat steps 1 and 2 under the load of the drive shaft, and record the monitoring data of the vibration sensor again, so as to perform multi-state monitoring of the vibration frequency of the drive shaft.

[0019] Compared with the prior art, the present invention provides an electromechanical monitoring device with the following advantages:

[0020] 1. This electromechanical monitoring device, by setting up a monitoring ring and a vibration sensor, has two sets of symmetrically arranged contact plates set in the monitoring ring, which are attached to the surface of the drive shaft of the electromechanical equipment under test. When the drive shaft rotates and vibrates, the contact rod with elastic connection drives the pin-connected pressure rod to trigger the vibration sensor to collect data, which effectively improves the accuracy of the monitoring data.

[0021] 2. This electromechanical monitoring device sets a load ring on one side of the monitoring ring, and uses the load wheel in the load ring to apply a load to the drive shaft. Vibration monitoring is then performed under load. The vibration sensor collects data a second time, which solves the problem of single monitoring data in the current technology and further improves the accuracy of the monitoring data.

[0022] 3. The electromechanical monitoring device has an adjustment component between the adjustment shaft and the second connecting block. The adjustment component is linked with the adjustment ring. By compressing the two sets of linkage plates on the inner wall of the adjustment ring, the linkage plates drive the second frame to move towards the center of the monitoring ring, thereby making the contact plate and the drive shaft fit tightly, ensuring that the accuracy of the monitoring data is improved under load.

[0023] The parts of this device not mentioned herein are the same as or can be implemented using existing technologies. When the drive shaft rotates and vibrates, the present invention uses a contact rod with elastic connection to drive a pin-connected pressure rod to trigger a vibration sensor for data collection, effectively improving the accuracy of the monitoring data. By adjusting the two sets of linkage plates on the inner wall of the ring compression, the linkage plates drive the second frame to generate a certain displacement towards the center of the monitoring ring, thereby making the contact plate and the drive shaft fit tightly, ensuring that the accuracy of the monitoring data is further improved under load. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of an electromechanical monitoring device proposed in this invention;

[0025] Figure 2 This is a partial cross-sectional view of the monitoring ring structure of an electromechanical monitoring device proposed in this invention;

[0026] Figure 3 This is a partial cross-sectional view of the load ring structure of an electromechanical monitoring device proposed in this invention;

[0027] Figure 4 This is a three-dimensional structural diagram of the adjustment component of an electromechanical monitoring device proposed in this invention;

[0028] Figure 5 This is a rear-view partial three-dimensional structural diagram of an electromechanical monitoring device proposed in this invention.

[0029] In the diagram: 1. First frame; 2. Second frame; 3. Connecting rod; 4. Monitoring ring; 5. Load ring; 6. Adjusting ring; 7. Vibration sensor; 8. Contact rod; 9. Limiter; 10. First spring; 11. Limiting sleeve; 12. Contact plate; 13. Pressure rod; 14. Vertical plate; 15. Mounting plate; 16. Load wheel; 17. Wheel seat; 18. Vibration sleeve; 19. Screw; 20. Second spring; 21. Limiting shaft; 22. First connecting block; 23. Guide sleeve; 24. Adjusting shaft; 25. Rack; 26. Gear; 27. Adjusting rod; 28. Guide connecting rod; 29. ​​Second connecting block; 30. Linkage plate; 31. Suction cup support; 32. Support rod; 33. Adjusting nut; 34. Guide shaft. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Example

[0032] Reference Figure 1-Figure 5 An electromechanical monitoring device includes a first frame 1 and a second frame 2, and further includes a monitoring ring 4 and a vibration sensor 7 for detecting vibration of the drive shaft of the electromechanical equipment. Two sets of contact plates 12 are symmetrically arranged inside the monitoring ring 4 and the contact plates 12 are attached to the surface of the drive shaft of the electromechanical equipment.

[0033] In this embodiment, the electromechanical equipment to be tested, the first frame 1, and the second frame 2 are fixedly installed on the monitoring platform, so that the drive shaft of the electromechanical equipment passes through the monitoring ring 4. The suction cup feet 31 at the bottom of the first frame 1 and the second frame 2 are adjusted so that the monitoring ring 4 is concentric with the drive shaft of the electromechanical equipment, ensuring the accuracy of subsequent monitoring data.

[0034] Specifically, the bottom of the first frame 1 and the second frame 2 are both equipped with adjustable support structures, including suction cup support 31. The suction cup support 31 is connected to a support rod 32. The support rod 32 is threadedly connected to the first frame 1 and the second frame 2. The surface of the support rod (32) is provided with an adjusting nut (33). By rotating the support rod 32, the distance between the suction cup support 31 and the bottom surface of the first frame 1 can be adjusted. After adjustment, the height of the first frame 1 and the second frame 2 can be changed by locking the adjusting nut (33) to adjust the concentricity of the drive shaft of the detection device and the electromechanical equipment under test.

[0035] A connecting rod 3 is connected between the first frame 1 and the second frame 2. A monitoring ring 4 is set between the first frame 1 and the second frame 2. The outer surface of the monitoring ring 4 has a ring of equidistant second connecting blocks 29. The connecting rod 3 passes through and is connected to the second connecting block 29.

[0036] In this embodiment, a second connecting block 29 is provided on the outer wall of the monitoring ring 4. The connecting rod 3 connects the first frame 1, the second frame 2 and the monitoring ring 4 through the second connecting block 29. This not only reduces the weight of the entire monitoring device, but also provides more space, making it easier for operators to perform monitoring operations.

[0037] The monitoring ring 4 has an equidistant ring array with a limiting sleeve 11. A first spring 10 is provided inside the limiting sleeve 11, and a contact rod 8 is slidably connected inside the limiting sleeve 11. A contact plate 12 is fixedly connected to the bottom end of the contact rod 8. Sliding grooves are symmetrically opened on both sides of the limiting sleeve 11. A limiter 9 is fixedly installed on the surface of the contact rod 8. The protrusions on both sides of the limiter 9 are slidably connected to the sliding groove.

[0038] Specifically, a limiting sleeve 11 is set inside the monitoring ring 4, and the contact rod 8 is elastically connected to the limiting sleeve 11 through the first spring 10. When the electromechanical equipment and vibration sensor 7 are started, if the drive shaft of the electromechanical equipment vibrates during rotation, the contact plate 12 and the contact rod 8 slide vertically back and forth inside the limiting sleeve 11 when vibrating.

[0039] The top of the contact rod 8 passes through the limiting sleeve 11 and extends to the outside of the limiting sleeve 11. The top of the limiting sleeve 11 is pinned to the pressure rod 13. The top of the second frame 2 is fixedly installed with the mounting plate 15. Two sets of upright plates 14 are fixedly installed on the mounting plate 15. The pressure rod 13 is pinned between the two sets of upright plates 14 at the center position. The vibration sensor 7 is fixedly installed on the mounting plate 15. One end of the pressure rod 13 is in contact with the contact of the vibration sensor 7.

[0040] Specifically, in this embodiment, the vibration generated by the rotation of the drive shaft pushes the contact plate 12 as the drive rotates, thereby causing the contact rod 8 to slide up and down within the limiting sleeve 11. When the contact rod 8 slides vertically, it causes the pressure rod 13 to rotate around the pin connection center within the vertical plate 14, thereby triggering the vibration sensor 7 to sense and record monitoring data.

[0041] A load ring 5 is used to provide load to the drive shaft of electromechanical equipment. Load wheels 16 are arranged in an equidistant ring inside the load ring 5. Vibration sleeves 18 are arranged in an equidistant ring inside the load ring 5. A screw 19 is threadedly connected to the vibration sleeve 18. One end of the screw 19 is rotatably connected to a wheel seat 17. The load wheels 16 are rotatably connected to the wheel seat 17.

[0042] In this embodiment, by setting a load ring 5 on one side of the monitoring ring 4, the load wheel 16 in the load ring 5 applies a load to the drive shaft, and vibration monitoring is performed under load. The vibration sensor 7 collects data a second time, which solves the problem of single monitoring data in the current technology and further improves the accuracy of the monitoring data.

[0043] Two sets of detachable limiting shafts 21 are symmetrically arranged on both sides of the wheel seat 17. The top of the limiting shaft 21 is threadedly connected to the wheel seat 17. The limiting shaft 21 is slidably connected inside the load ring 5. A second spring 20 is symmetrically connected between the vibration sleeve 18 and the load ring 5.

[0044] Specifically, rotating the screw 19 causes the load wheel 16 to come into contact with the drive shaft surface of the electromechanical equipment under test, applying a load to the drive shaft. Under the load on the drive shaft, steps one and two are repeated, and the monitoring data of the vibration sensor 7 is recorded again, thereby performing multi-state monitoring of the vibration frequency of the drive shaft.

[0045] An adjusting shaft 24 and a guide rod 28 are connected between the second frame 2 and the load ring 5. The adjusting shaft 24 and the guide rod 28 are arranged in a ring at equal intervals on the outer wall of the load ring 5. A second connecting block 29 is also provided on the outer wall of the load ring 5. The guide rod 28 and the second connecting block 29 are slidably inserted into each other. A first connecting block 22 is provided on the outer wall of the load ring 5. The adjusting shaft 24 passes through the first connecting block 22. Guide sleeves 23 are provided in both the first connecting block 22 and the second connecting block 29.

[0046] In this embodiment, the outer rings of both the monitoring ring 4 and the load ring 5 are provided with a first connecting block 22, and only the outer ring of the load ring 5 is provided with a set of second connecting blocks 29. The first connecting block 22 and the second connecting block 29 are both provided with guide sleeves 23, which facilitate the sliding connection between the guide rod 28 and the connecting rod 3 inside them. This ensures both the structural stability of the monitoring device and the ability of the load ring 5 to move on the surface of the guide rod 28.

[0047] An adjustment assembly is provided between the adjustment shaft 24 and the first connecting block 22. The adjustment assembly includes a rack 25 and a gear 26. A slot is opened in the adjustment shaft 24. The rack 25 is fixedly installed in the slot. The gear 26 is rotatably installed in the first connecting block 22 through the adjustment rod 27. The rack 25 and the gear 26 are meshed. A damping bearing is provided between the adjustment rod 27 and the first connecting block 22.

[0048] In this embodiment, when it is necessary to adjust the position of the load ring 5 on the surface of the drive shaft, the gear 26 is rotated and the rack 25 is moved. Since the rack 25 is fixedly installed in the groove of the adjusting shaft 24 and the first connecting block 22 is fixedly connected to the load ring 5, the gear 26 can drive the load ring 5 to produce a certain displacement, thereby adapting to drive shafts of different lengths.

[0049] A linkage plate 30 is fixedly installed on one side of the outer wall of the limiting sleeve 11. The end of the linkage plate 30 away from the limiting sleeve 11 is inclined. An adjusting ring 6 is sleeved on the outside of the two sets of linkage plates 30. The adjusting ring 6 is a conical ring structure. The inner wall of the adjusting ring 6 and the inclined surface of the linkage plate 30 slide against each other. The adjusting ring 6 and the load ring 5 are fixedly connected.

[0050] In this embodiment, after the load wheel 16 and the drive shaft are in contact, the position of the load ring 5 on the surface of the drive shaft is changed by the adjustment component. Since the guide shaft 34 is provided through the second frame 2, and the horizontal section of the linkage plate 30 is slidably connected to the guide shaft 34, while the load ring 5 moves, the adjustment ring 6 presses the two sets of linkage plates 30 to drive the limit sleeve 11 to move down, and drive the contact plate 12 to be in contact with the drive shaft and pressed firmly.

[0051] In this invention, during use, the electromechanical equipment to be tested, the first frame 1, and the second frame 2 are fixedly installed on the monitoring platform, so that the drive shaft of the electromechanical equipment passes through the monitoring ring 4, the adjustment ring 6, and the load ring 5 in sequence. The suction cup support 31 at the bottom of the first frame 1 and the second frame 2 is adjusted. Specifically, rotating the support rod 32 can drive the distance between the suction cup support 31 and the bottom surface of the first frame 1, change the height of the first frame 1 and the second frame 2, and adjust the concentricity of the detection device and the drive shaft of the electromechanical equipment to be tested.

[0052] Simultaneously, the electromechanical equipment and vibration sensor 7 are activated. If vibration occurs during the rotation of the drive shaft of the electromechanical equipment, the vibration will cause the pressure rod 13 to rotate around the pin connection center in the vertical plate 14 through the contact plate 12 and the contact rod 8, thereby triggering the vibration sensor 7. As the drive rotates, it pushes the contact plate 12, thereby causing the contact rod 8 to slide up and down in the limit sleeve 11. When the contact rod 8 slides vertically, it causes the pressure rod 13 to rotate around the pin connection center in the vertical plate 14, thereby triggering the vibration sensor 7 and recording the monitoring data.

[0053] Rotate screw 19 to make load wheel 16 fit against the surface of the drive shaft of the electromechanical equipment under test, applying a load to the drive shaft. Under the load on the drive shaft, repeat steps one and two, and record the monitoring data of vibration sensor 7 again, thereby performing multi-state monitoring of the vibration frequency of the drive shaft. Specifically, rotate screw 19 to make load wheel 16 fit against the surface of the drive shaft of the electromechanical equipment under test, applying a load to the drive shaft. Under the load on the drive shaft, repeat steps one and two, and record the monitoring data of vibration sensor 7 again, thereby performing multi-state monitoring of the vibration frequency of the drive shaft.

[0054] A monitoring method includes the following steps:

[0055] Step 1: Fix the electromechanical equipment to be tested, the first frame 1 and the second frame 2 on the monitoring platform, so that the drive shaft of the electromechanical equipment passes through the monitoring ring 4, the adjusting ring 6 and the load ring 5 in sequence. Adjust the suction cup feet 31 at the bottom of the first frame 1 and the second frame 2 so that the monitoring ring 4 is concentric with the drive shaft of the electromechanical equipment.

[0056] Step 2: Simultaneously start the electromechanical equipment and vibration sensor 7. If the drive shaft of the electromechanical equipment vibrates during rotation, the vibration will cause the pressure rod 13 to rotate around the pin connection center in the vertical plate 14 through the contact plate 12 and the contact rod 8, thereby triggering the vibration sensor 7 to sense and record the monitoring data.

[0057] Step 3: Rotate screw 19 to make load wheel 16 and drive shaft surface of the electromechanical equipment under test fit together, apply load to drive shaft. Under drive shaft load, repeat steps 1 and 2, and record the monitoring data of vibration sensor 7 again, so as to perform multi-state monitoring of drive shaft vibration frequency.

[0058] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An electromechanical monitoring device, comprising a first frame (1) and a second frame (2), characterized in that, Also includes: A monitoring ring (4) and a vibration sensor (7) are used to detect the vibration of the drive shaft of the electromechanical equipment. Two sets of contact plates (12) are symmetrically arranged inside the monitoring ring (4), and the contact plates (12) are attached to the surface of the drive shaft of the electromechanical equipment. A load ring (5) for providing load to the drive shaft of electromechanical equipment, wherein load wheels (16) are arranged in an equidistant ring within the load ring (5). An adjusting shaft (24) and a guide rod (28) are connected between the second frame (2) and the load ring (5). The adjusting shaft (24) and the guide rod (28) are arranged in a ring at equal intervals on the outer wall of the load ring (5). A second connecting block (29) is also provided on the outer wall of the load ring (5). The guide rod (28) and the second connecting block (29) are slidably inserted into each other. A first connecting block (22) is provided on the outer wall of the load ring (5). The adjusting shaft (24) passes through the first connecting block (22). Guide sleeves (23) are provided in both the first connecting block (22) and the second connecting block (29). An adjustment assembly is provided between the adjustment shaft (24) and the first connecting block (22). The adjustment assembly includes a rack (25) and a gear (26). A slot is provided in the adjustment shaft (24). The rack (25) is fixedly installed in the slot. The gear (26) is rotatably installed in the first connecting block (22) through the adjustment rod (27). The rack (25) and the gear (26) are meshed. A damping bearing is provided between the adjustment rod (27) and the first connecting block (22). A connecting rod (3) is connected between the first frame (1) and the second frame (2). The monitoring ring (4) is located between the first frame (1) and the second frame (2). The outer surface of the monitoring ring (4) has a ring of equidistant second connecting blocks (29). The connecting rod (3) is connected through the second connecting block (29). The monitoring ring (4) has an annular equidistant array of limiting sleeves (11). A first spring (10) is provided inside the limiting sleeve (11), and a contact rod (8) is slidably connected inside the limiting sleeve (11). The contact plate (12) is fixedly connected to the bottom end of the contact rod (8). Sliding grooves are symmetrically opened on both sides of the limiting sleeve (11). A limiter (9) is fixedly installed on the surface of the contact rod (8). The protrusions on both sides of the limiter (9) are slidably connected to the sliding groove. A linkage plate (30) is fixedly installed on one side of the outer wall of the limiting sleeve (11). The end of the linkage plate (30) away from the limiting sleeve (11) is inclined. An adjustment ring (6) is sleeved on the outside of the two sets of linkage plates (30). The adjustment ring (6) is set as a conical ring structure. The inner wall of the adjustment ring (6) and the inclined surface of the linkage plate (30) slide against each other. The adjustment ring (6) and the load ring (5) are fixedly connected. When the load wheel (16) and the drive shaft are in contact, the position of the load ring (5) on the surface of the drive shaft is changed by the adjustment component. Since the guide shaft (34) is installed through the second frame (2), the horizontal section of the linkage plate (30) and the guide shaft (34) are slidably connected. Therefore, while the load ring (5) moves, the adjustment ring (6) presses the two sets of linkage plates (30) to drive the limiting sleeve (11) to move down, and drive the contact plate (12) and the drive shaft to fit and compact.

2. The electromechanical monitoring device according to claim 1, characterized in that, The top end of the contact rod (8) passes through the limiting sleeve (11) and extends to the outside of the limiting sleeve (11). The top end of the limiting sleeve (11) is pinned to a pressure rod (13). The top of the second frame (2) is fixedly installed with an mounting plate (15). Two sets of upright plates (14) are fixedly installed on the mounting plate (15). The pressure rod (13) is pinned between the two sets of upright plates (14) at the center position. The vibration sensor (7) is fixedly installed on the mounting plate (15). One end of the pressure rod (13) is in contact with the contact of the vibration sensor (7).

3. The electromechanical monitoring device according to claim 2, characterized in that, The load ring (5) has a ring-shaped equidistant array of vibration sleeves (18), and the vibration sleeves (18) are threadedly connected to a screw (19). One end of the screw (19) is rotatably connected to a wheel seat (17), and the load wheel (16) is rotatably connected to the wheel seat (17).

4. The electromechanical monitoring device according to claim 3, characterized in that, Two sets of detachable limiting shafts (21) are symmetrically arranged on both sides of the wheel seat (17). The top of the limiting shaft (21) is threadedly connected to the wheel seat (17). The limiting shaft (21) is slidably connected inside the load ring (5). A second spring (20) is symmetrically connected between the vibration sleeve (18) and the load ring (5).

5. A monitoring method, comprising the electromechanical monitoring device as described in claim 4, characterized in that, The steps include: Step 1: Fix the electromechanical equipment to be tested, the first frame (1) and the second frame (2) on the monitoring platform, so that the drive shaft of the electromechanical equipment passes through the monitoring ring (4), the adjustment ring (6) and the load ring (5) in sequence. Adjust the suction cup feet (31) at the bottom of the first frame (1) and the second frame (2) so that the monitoring ring (4) is concentric with the drive shaft of the electromechanical equipment. Step 2: Simultaneously start the electromechanical equipment and vibration sensor (7). If the drive shaft of the electromechanical equipment vibrates during rotation, the vibration will cause the pressure rod (13) to rotate around the pin center in the vertical plate (14) through the contact plate (12) and contact rod (8), thereby triggering the vibration sensor (7) to sense and record the monitoring data. Step 3: Rotate the screw (19) to drive the load wheel (16) to fit against the surface of the drive shaft of the electromechanical equipment to be tested, apply a load to the drive shaft, repeat steps 1 and 2 under the load of the drive shaft, and record the monitoring data of the vibration sensor (7) again, so as to monitor the vibration frequency of the drive shaft in multiple states.

Citation Information

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