Bearing fault analysis detector

Abstract

The invention relates to the technical field of fault detection, in particular to a bearing fault analysis detector. Comprising a fixing plate, a controller, an alarm, a connecting plate, mounting shells, a light source, a photosensitive sensor, a fixing shell and the like, the controller and the alarm are both mounted on the side face of the fixing plate, the connecting plate is arranged on the side face of the fixing plate, the two mounting shells are symmetrically connected to the connecting plate, and the light source and the photosensitive sensor are mounted in the two mounting shells respectively; fixing shells are connected to the inner walls of the two mounting shells correspondingly, and the light source and the photosensitive sensor are located in the two fixing shells correspondingly. Through the combination of the light source and the photosensitive sensor, the state of lubricating grease in the bearing can be monitored in real time, when the impurity content in the lubricating grease exceeds a preset value, the photosensitive sensor can detect the change of light intensity, and the alarm is triggered by the controller to give an alarm, so that potential problems can be found in time before a bearing fault occurs, and the safety of the bearing is improved. And equipment shutdown and economic loss caused by bearing faults are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of fault detection, and in particular to a bearing fault analysis and detection instrument. Background Art

[0002] In modern industrial production, the reliability and stability of mechanical equipment directly affect production efficiency and product quality. As a key component in the mechanical transmission system, the health of the bearing is crucial. It not only bears the rotation load of the mechanical parts, but also is responsible for transmitting power to ensure the smooth operation of the mechanical system. However, due to long-term operation, poor lubrication or external environmental factors, bearings may suffer from wear, cracks, peeling and other faults. If these problems are not discovered and handled in time, it will lead to a decline in equipment performance and even cause serious safety accidents, causing huge economic losses to the company.

[0003] Among the existing bearing fault detection technologies, sound diagnosis is a relatively common method, that is, by monitoring the sound made by the bearing during operation, technicians can preliminarily determine whether there is any abnormality in the bearing. However, sound diagnosis has significant limitations: First, sound diagnosis is a periodic detection method, that is, detection is only performed within a predetermined time period. If the bearing failure occurs in the gap between two detections, it will not be discovered in time, thereby delaying the best time to handle the fault. Secondly, sound diagnosis mainly relies on the subjective judgment of experienced technicians and is easily affected by human factors, resulting in misjudgment or missed detection. In addition, sound diagnosis can only be detected after the fault has occurred, and it cannot warn of potential problems in advance, lacking preventive measures. Finally, traditional detection methods usually require shutdown operations, which not only increases production costs, but may also affect production progress due to frequent shutdown detection. Summary of the invention

[0004] In view of this, the present invention provides a bearing fault analysis detector, which can overcome the shortcomings of the existing bearing fault detection technology, which is a periodic detection method and cannot detect the bearing failure in time, thereby delaying the best time for fault handling, and can only detect the fault after it has occurred, and cannot warn of potential problems in advance.

[0005] The technical solution is as follows: A bearing fault analysis detector, including a fixed plate, a controller, an alarm, a connecting plate, a mounting shell, a light source, a photosensitive sensor, a fixed shell, a glass sheet and an adjustment mechanism. The controller and the alarm are both installed on the side of the fixed plate, the connecting plate is arranged on the side of the fixed plate, and two mounting shells are symmetrically connected to the connecting plate, the light source and the photosensitive sensor are respectively installed in the two mounting shells, the inner walls of the two mounting shells are connected to the fixed shells, the light source and the photosensitive sensor are respectively located in the two fixed shells, and the opposite sides of the two fixed shells are connected to the glass sheets, and the side of the fixed plate is also provided with an adjustment mechanism for adjusting the position of the connecting plate.

[0006] Preferably, the adjustment mechanism includes a mounting plate, a guide block, a slider, a first adjusting screw, a first fastening bolt and a fixing assembly, the guide block is connected to the side of the mounting plate, the slider is slidably connected to the guide block, and the top of the slider is connected to the bottom of the connecting plate, the first adjusting screw is rotatably connected to the guide block, and the first adjusting screw is threadedly connected to the slider, the first fastening bolt is threadedly connected to the slider, and the end of the first fastening bolt is in contact and fit with the bottom of the guide block, and the fixing assembly is used to fix the mounting plate to the side of the fixing plate.

[0007] Preferably, the fixing assembly includes an L-shaped plate and a second fastening bolt, the L-shaped plate is symmetrically connected to the side of the fixing plate, the second fastening bolt is threadedly connected to the L-shaped plate, and the end of the second fastening bolt is in contact with the side of the mounting plate.

[0008] Preferably, it also includes a connecting rod, a mounting frame, a first laser rangefinder and a fixing ring, the connecting rod is symmetrically connected to the side of the fixing plate, the mounting frame is connected to the upper end of the connecting rod, and the shaft passes through the inner side of the mounting frame, the first laser rangefinder is installed on the mounting frame, the fixing ring is connected to the outer wall of the shaft, and the fixing ring is located inside the mounting frame.

[0009] Preferably, a second laser rangefinder and an annular plate are also included. The second laser rangefinder is installed on the side of the installation frame. The annular plate is connected to the outer wall of the shaft body. The annular plate is located at the rear side of the fixing ring and is located inside the installation frame.

[0010] Preferably, it also includes a guide column, a sliding plate, a sealing gasket and a second adjusting screw, the guide column is symmetrically connected to the connecting plate, the sliding plate is slidably connected to the guide column, the sealing gasket is connected to the side of the sliding plate, and the fixed shell slides through the sliding plate and the sealing gasket, the second adjusting screw is threadedly connected to the connecting plate, and the end of the second adjusting screw is rotatably connected to the sliding plate.

[0011] Preferably, it also includes a mounting rod and a bearing fault detector, the mounting rod is connected to the side of the fixing plate, the bearing fault detector is installed on the upper end of the mounting rod, and the bearing fault detector is in contact with the side of the sealing member.

[0012] Preferably, a protective shell and a connecting spring are also included. The protective shell is slidably connected to the outside of the bearing fault detector, and the connecting spring connects the protective shell and the mounting rod.

[0013] The beneficial effects of the present invention are as follows: 1. The present invention can monitor the state of the grease inside the bearing in real time through the combination of a light source and a photosensitive sensor. When the impurity content in the grease exceeds a preset value, the photosensitive sensor will detect the change in light intensity and trigger an alarm through a controller to sound an alarm. In this way, potential problems can be discovered in time before the bearing fails, thus avoiding equipment downtime and economic losses caused by bearing failure.

[0014] 2. The present invention can monitor the radial clearance and axial clearance of the bearing respectively through the cooperation of the first laser rangefinder and the second laser rangefinder. When the radial or axial clearance of the bearing exceeds the preset value, the laser rangefinder will send a signal. After receiving the signal, the controller controls the alarm to sound an alarm. This design can accurately measure the clearance change of the bearing, improve the accuracy and reliability of fault detection, and ensure the stable operation of the equipment.

[0015] 3. The present invention integrates multiple detection methods such as photosensitive sensors, laser rangefinders and sound diagnosis, which can comprehensively monitor the health status of bearings from different angles. Photosensitive sensors are used to detect the state of grease, laser rangefinders are used to measure the change of clearance, and sound diagnosis is used to identify abnormal internal noise. These comprehensive detection methods complement each other, improve the comprehensiveness and accuracy of fault diagnosis, and provide strong support for timely maintenance measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 Schematic diagram of the specific structure of the bearing.

[0018] Figure 3 It is a schematic diagram of installing the housing and the guide column of the present invention.

[0019] Figure 4 The figure is a schematic diagram of the installation of the light source, the photosensor, the fixing shell and the glass sheet of the present invention.

[0020] Figure 5 The figure is a schematic diagram of the installation of the adjusting mechanism, the connecting rod and the installation frame of the present invention.

[0021] Figure 6 It is a cross-sectional view of the installation frame of the present invention.

[0022] Figure 7 The figure is a schematic diagram of the installation of the sliding plate, the sealing gasket and the second adjusting screw of the present invention.

[0023] Figure 8 The figure is a schematic diagram of the installation of the mounting rod, the bearing fault detector, the protective shell and the connecting spring of the present invention.

[0024] Explanation of the reference numerals: 001-bearing seat, 002-outer ring, 003-inner ring, 004-seal, 005-shaft body, 006-retaining frame, 007-rolling body, 1-fixed plate, 2-controller, 3-alarm, 4-connecting plate, 5-mounting shell, 6-light source, 7-photosensitive sensor, 8-fixed shell, 9-glass sheet, 10-mounting plate, 11-guide block, 12-slider, 13-first adjusting screw, 14-first fastening bolt, 15-L-shaped plate, 16-second fastening bolt, 17-connecting rod, 18-mounting frame, 19-first laser rangefinder, 20-fixing ring, 21-second laser rangefinder, 22-annular plate, 23-guide column, 24-sliding plate, 25-sealing pad, 26-second adjusting screw, 27-mounting rod, 28-bearing fault detector, 29-protective shell, 30-connecting spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Example: Figure 1 and Figure 2 As shown, a bearing is installed on the bearing seat 001, and the bearing is composed of an outer ring 002, an inner ring 003, a seal 004, a shaft 005, a retainer 006 and a rolling body 007. The outer ring 002 is installed on the upper part of the bearing seat 001, and the inner ring 003 is arranged inside the outer ring 002. A retainer 006 is arranged between the outer ring 002 and the inner ring 003. The retainer 006 is connected to the rolling body 007 in a circumferential rotation interval. The rolling body 007 is respectively connected to the inner wall of the outer ring 002 and the outer wall of the inner ring 003 The inner ring 003 is in contact with the outer ring 002 so that the inner ring 003 can rotate freely in the outer ring 002. Seals 004 are symmetrically arranged front to back between the outer ring 002 and the inner ring 003. The two seals 004 are respectively located on the front and rear sides of the retaining frame 006. The seals 004 are used to seal the grease between the outer ring 002 and the inner ring 003 to prevent grease leakage, and the seals 004 do not rotate with the inner ring 003 (existing technology, no more details are given), and the shaft 005 is connected to the inner wall of the inner ring 003.

[0027] A bearing fault analysis and detection instrument, such as Figure 1-Figure 5As shown, it includes a fixing plate 1, a controller 2, an alarm 3, a connecting plate 4, a mounting shell 5, a light source 6, a photosensor 7, a fixing shell 8, a glass sheet 9 and an adjusting mechanism. The rear side of the fixing plate 1 is a plane, that is, the rear side of the fixing plate 1 can be fixed to the front side of the bearing seat 001 by glue or the like. The controller 2 is installed at the lower right part of the front side of the fixing plate 1, and the alarm 3 is installed at the lower left part of the front side of the fixing plate 1. The alarm 3 can be set with a variety of sounds for different fault conditions. A connecting plate 4 is provided on the upper front of the fixing plate 1, and two mounting shells 5 are connected to the right side of the upper part of the connecting plate 4, and the two mounting shells 5 are up and down opposite. The light source 6 is installed in the lower mounting shell 5, and the photosensitive sensor 7 is installed in the upper mounting shell 5, and the photosensitive sensor 7 is vertically aligned with the light source 6. The rear sides of the inner walls of the two mounting shells 5 are connected to fixed shells 8, and the spacing between the two fixed shells 8 is 2 mm. The rear parts of the light source 6 and the photosensitive sensor 7 are respectively located in the two fixed shells 8, and the rear parts of the two fixed shells 8 that are close to each other are installed with glass sheets 9, so that the light emitted by the light source 6 can pass through the two glass sheets 9 in turn and be received by the photosensitive sensor 7. An adjusting mechanism for adjusting the position of the connecting plate 4 is also provided on the front side of the fixed plate 1.

[0028] like Figure 5 As shown, the adjustment mechanism includes a mounting plate 10, a guide block 11, a slider 12, a first adjustment screw 13, a first fastening bolt 14 and a fixing assembly. The mounting plate 10 is provided on the front upper part of the fixing plate 1, and the mounting plate 10 is located between the connecting plate 4 and the fixing plate 1. The middle part of the front side of the mounting plate 10 is connected to the guide block 11, and the slider 12 is slidably connected to the guide block 11, and the top of the slider 12 is connected to the bottom of the connecting plate 4. The first adjustment screw 13 is rotatably connected to the upper part of the front side of the guide block 11, and the rear end of the first adjustment screw 13 is threadedly connected to the upper part of the slider 12. Then, the bottom of the slider 12 is threadedly connected to a first fastening bolt 14, and the top of the first fastening bolt 14 contacts and cooperates with the bottom of the guide block 11 to lock the slider 12. The fixing assembly is used to fix the mounting plate 10 to the side of the fixing plate 1; the fixing assembly includes an L-shaped plate 15 and a second fastening bolt 16, and the front side of the fixing plate 1 is symmetrically connected to the L-shaped plate 15. Two second fastening bolts 16 are threadedly connected to the two L-shaped plates 15, and the rear ends of the second fastening bolts 16 contact and cooperate with the front side of the mounting plate 10 to lock the mounting plate 10.

[0029] First, install the fixing plate 1 on the side of the bearing seat 001 by gluing or other means, and then open two round holes on the front seal 004 that match the fixing shell 8. Since the grease inside the bearing is in paste form, the grease will not easily leak from the round holes. Then slide the mounting plate 10 into between the two L-shaped plates 15, and then adjust the position of the mounting plate 10 up and down and left and right to drive the fixing shell 8 to adjust its position up and down and left and right, so that the two fixing shells 8 are horizontally aligned with the corresponding round holes, and then tighten the second fastening bolts 16 to fix the mounting plate 10. By turning the first adjusting screw 13, the slider 12 can be driven to move backward along the guide block 11, so as to drive the first fastening bolt 14, the connecting plate 4, the mounting shell 5, the light source 6, the photosensitive sensor 7 and the fixed shell 8 to move backward, so that the two fixed shells 8 are respectively inserted into the corresponding circular holes. Under the elastic action of the sealing member 004 itself, the inner wall of the circular hole will fit tightly with the outer wall of the fixed shell 8 to prevent the grease from leaking, and the fixed shell 8 can protect the light source 6 and the photosensitive sensor 7 to prevent the light source 6 and the photosensitive sensor 7 from contacting with the grease. Then, tightening the first fastening bolt 14 can The slider 12 is locked, and then the controller 2 controls the light source 6 to start working. The light source 6 will emit light, and the light will pass through the lower glass sheet 9, the grease between the two fixed shells 8 (about 2 mm, the light can pass through in the form of scattered light) and the upper glass sheet 9 in sequence, and finally the light will be irradiated on the photosensitive sensor 7, and the photosensitive sensor 7 can detect the intensity of the light it receives; as the bearing continues to run, dust, moisture, etc. from the outside may enter the inside of the bearing through the poorly sealed parts, and the metal parts inside the bearing may also produce fine metal particles due to wear. These impurities will be mixed into the grease and dispersed in the grease with the movement of the bearing, resulting in increased wear inside the bearing and reduced lubrication effect; the impurities inside the grease will affect the overall light transmittance of the grease. When the light intensity detected by the photosensitive sensor 7 is lower than the preset value, it means that the impurities inside the grease reach a certain amount. At this time, the photosensitive sensor 7 will send a signal. After receiving the signal, the controller 2 will control the alarm 3 to send a corresponding alarm sound to warn the staff, and then the staff can control the alarm 3 to stop working through the controller 2 and maintain the bearing in time.

[0030] like Figure 5 and Figure 6As shown, it also includes a connecting rod 17, a mounting frame 18, a first laser rangefinder 19, a fixing ring 20, a second laser rangefinder 21 and an annular plate 22. The upper front part of the fixing plate 1 is symmetrically connected with the connecting rod 17, the connecting rod 17 is located outside the L-shaped plate 15, and the mounting frame 18 is connected between the upper ends of the two connecting rods 17. The mounting frame 18 is a hollow ring, and the shaft 005 passes through the inner side of the mounting frame 18. The first laser rangefinder 19 is installed on the left side of the upper part of the mounting frame 18. The fixed ring 20 is connected to the outer wall of the shaft body 005, the first laser rangefinder 19 is used to detect the distance between it and the outer wall of the fixed ring 20, and the fixed ring 20 is located inside the mounting frame 18, and the second laser rangefinder 21 is installed on the left front side of the mounting frame 18, the annular plate 22 is also connected to the outer wall of the shaft body 005, and the annular plate 22 is located on the rear side of the fixed ring 20, and the annular plate 22 is also located inside the mounting frame 18, and the second laser rangefinder 21 is used to detect the distance between it and the front side of the annular plate 22.

[0031] As the bearing continues to run, the radial clearance and axial clearance of the bearing will change due to factors such as temperature changes, loads, wear, and lubrication conditions. During the rotation of the shaft body 005, the shaft body 005 will drive the fixed ring 20 and the annular plate 22 to rotate synchronously. The first laser rangefinder 19 can detect the distance between it and the outer wall of the fixed ring 20, and the second laser rangefinder 21 can detect the distance between it and the front side of the annular plate 22. When the radial clearance of the bearing increases, the fixed ring 20 and the annular plate 22 will deflect synchronously with the shaft body 005. When the first laser rangefinder 19 detects that the distance between it and the outer wall of the fixed ring 20 is less than the preset value, it means that the radial clearance of the bearing has increased beyond a certain range, and the second laser rangefinder 21 has detected that the distance between it and the outer wall of the fixed ring 20 is less than the preset value. A laser rangefinder 19 will send out a signal, and the controller 2 will control the alarm 3 to send out a corresponding alarm sound after receiving the signal to warn the staff, and then the staff can control the alarm 3 to stop working through the controller 2 and maintain the bearing in time; similarly, when the axial clearance of the bearing increases, the fixing ring 20 and the annular plate 22 will move back and forth synchronously with the shaft 005. When the second laser rangefinder 21 detects that the distance between it and the annular plate 22 is greater than the preset value, it means that the axial clearance of the bearing increases beyond a certain range. The second laser rangefinder 21 will send out a signal, and the controller 2 will control the alarm 3 to send out a corresponding alarm sound after receiving the signal to warn the staff.

[0032] like Figure 7As shown, it also includes a guide column 23, a sliding plate 24, a sealing gasket 25 and a second adjusting screw 26. Two guide columns 23 are connected to the left side of the upper part of the connecting plate 4, and the two guide columns 23 are arranged in parallel with the two mounting shells 5. A sliding plate 24 is slidably connected between the two guide columns 23. The sliding plate 24 is located on the rear side of the connecting plate 4. A sealing gasket 25 is connected to the rear side of the sliding plate 24, and the two fixed shells 8 both slide through the sliding plate 24 and the sealing gasket 25. The second adjusting screw 26 is threadedly connected to the upper part of the connecting plate 4, and the end of the second adjusting screw 26 is rotatably connected to the lower part of the sliding plate 24.

[0033] Different types of bearings have different distances between the seal 004 and the retainer 006 and the rolling element 007. When installing the detector, the forward and backward movement of the sliding plate 24 and the sealing gasket 25 can be controlled by rotating the second adjusting screw 26 forward and backward according to the different types of bearings, so as to adjust the distance between the rear side of the fixed shell 8 and the rear side of the sealing gasket 25. Then, two circular holes that match the guide column 23 need to be opened on the front seal 004. Then, the guide column 23 and the fixed shell 8 can be moved backward and inserted into the corresponding circular holes on the front seal 004. When the rear side of the sealing gasket 25 contacts the front seal 004, the guide column 23 and the fixed shell 8 will stop moving backward. At this time, the rear ends of the guide column 23 and the fixed shell 8 have been inserted. A specified distance is set inside the bearing to prevent the rear ends of the guide column 23 and the fixed shell 8 from contacting the retainer 006 and the rolling element 007, thereby ensuring the normal operation of the bearing and preventing the guide column 23 and the fixed shell 8 from being damaged. In addition, the rear side surface of the sealing gasket 25 fits with the seal 004 on the front side, which can further seal the four sides of the circular hole on the seal 004 on the front side to prevent grease leakage. During the operation of the bearing, the seal 004 may be subjected to force due to the rotation of the inner ring 003, thereby causing an extrusion force on the fixed shell 8. At this time, the guide column 23 can position the seal 004 on the bearing and prevent the seal 004 from causing an extrusion force on the fixed shell 8, thereby preventing the fixed shell 8 from being bent due to the extrusion force.

[0034] like Figure 8 As shown, it also includes a mounting rod 27, a bearing fault detector 28, a protective shell 29 and a connecting spring 30. The mounting rod 27 is connected to the upper right part of the front side of the fixing plate 1, and the bearing fault detector 28 is installed on the upper end of the mounting rod 27. The rear side of the bearing fault detector 28 is close to the front side of the seal 004, and the outer side of the outer shell of the bearing fault detector 28 is slidably connected with the protective shell 29. The rear side of the protective shell 29 is in contact with the front side of the seal 004. The connecting spring 30 is wound around the outer side of the outer shell of the bearing fault detector 28, and the two ends of the connecting spring 30 are respectively connected to the front side of the protective shell 29 and the rear side of the mounting rod 27.

[0035] After the detector is installed, the bearing fault detector 28 can diagnose the sound inside the bearing through the seal 004. If the bearing produces large debris due to wear, the light source 6 and the photosensitive sensor 7 may not be able to detect these debris in time. At this time, the large debris will cause the sound inside the bearing to increase. When the bearing fault detector 28 detects that the sound inside the bearing exceeds the preset value, it will send a signal. After receiving the signal, the controller 2 will control the alarm 3 to send a corresponding alarm sound to remind the staff; at the same time, under the elastic force of the connecting spring 30, the protective shell 29 can always cover the outside of the bearing fault detector 28 to protect the bearing fault detector 28.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A bearing fault analysis and detection instrument, comprising a fixing plate (1), characterized in that: The invention also comprises a controller (2), an alarm (3), a connecting plate (4), a mounting shell (5), a light source (6), a photosensor (7), a fixed shell (8), a glass sheet (9) and an adjustment mechanism. The controller (2) and the alarm (3) are both mounted on the side of the fixed plate (1). The connecting plate (4) is arranged on the side of the fixed plate (1). Two mounting shells (5) are symmetrically connected to the connecting plate (4). The light source (6) and the photosensor (7) are respectively mounted in the two mounting shells (5). The inner walls of the two mounting shells (5) are both connected to the fixed shells (8). The light source (6) and the photosensor (7) are respectively located in the two fixed shells (8). The opposite sides of the two fixed shells (8) are both connected to the glass sheet (9). The side of the fixed plate (1) is also provided with an adjustment mechanism for adjusting the position of the connecting plate (4).

2. A bearing fault analysis and detection instrument according to claim 1, characterized in that: The adjustment mechanism comprises a mounting plate (10), a guide block (11), a slider (12), a first adjustment screw (13), a first fastening bolt (14) and a fixing assembly, wherein the guide block (11) is connected to a side surface of the mounting plate (10), the slider (12) is slidably connected to the guide block (11), and the top of the slider (12) is connected to the bottom of the connecting plate (4), the first adjustment screw (13) is rotationally connected to the guide block (11), and the first adjustment screw (13) is threadedly connected to the slider (12), the first fastening bolt (14) is threadedly connected to the slider (12), and the end of the first fastening bolt (14) is in contact with and fits with the bottom of the guide block (11), and the fixing assembly is used to fix the mounting plate (10) to the side surface of the fixing plate (1).

3. A bearing fault analysis and detection instrument according to claim 2, characterized in that: The fixing assembly comprises an L-shaped plate (15) and a second fastening bolt (16); the L-shaped plate (15) is symmetrically connected to the side of the fixing plate (1); the second fastening bolt (16) is threadedly connected to the L-shaped plate (15); and the end of the second fastening bolt (16) is in contact with the side of the mounting plate (10).

4. A bearing fault analysis and detection instrument according to claim 3, characterized in that: It also includes a connecting rod (17), a mounting frame (18), a first laser rangefinder (19) and a fixing ring (20), wherein the connecting rod (17) is symmetrically connected to the side of the fixing plate (1), the mounting frame (18) is connected to the upper end of the connecting rod (17), and the shaft body (005) passes through the inner side of the mounting frame (18), the first laser rangefinder (19) is mounted on the mounting frame (18), and the fixing ring (20) is connected to the outer wall of the shaft body (005), and the fixing ring (20) is located inside the mounting frame (18).

5. A bearing fault analysis and detection instrument according to claim 4, characterized in that: It also includes a second laser rangefinder (21) and an annular plate (22), the second laser rangefinder (21) being mounted on the side of the mounting frame (18), the annular plate (22) being connected to the outer wall of the shaft body (005), the annular plate (22) being located at the rear side of the fixing ring (20), and the annular plate (22) being located inside the mounting frame (18).

6. A bearing fault analysis and detection instrument according to claim 5, characterized in that: The invention also comprises a guide column (23), a sliding plate (24), a sealing gasket (25) and a second adjusting screw (26), wherein the guide column (23) is symmetrically connected to the connecting plate (4), the sliding plate (24) is slidably connected to the guide column (23), the sealing gasket (25) is connected to the side of the sliding plate (24), and the fixed shell (8) slides through the sliding plate (24) and the sealing gasket (25), the second adjusting screw (26) is threadedly connected to the connecting plate (4), and the end of the second adjusting screw (26) is rotatably connected to the sliding plate (24).

7. A bearing fault analysis and detection instrument according to claim 6, characterized in that: It also includes a mounting rod (27) and a bearing fault detector (28), wherein the mounting rod (27) is connected to the side of the fixing plate (1), the bearing fault detector (28) is mounted on the upper end of the mounting rod (27), and the bearing fault detector (28) is in contact with the side of the sealing member (004).

8. A bearing fault analysis and detection instrument according to claim 7, characterized in that: It also includes a protective shell (29) and a connecting spring (30), wherein the protective shell (29) is slidably connected to the outside of the bearing fault detector (28), and the connecting spring (30) connects the protective shell (29) and the mounting rod (27).

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