Bearing connecting rod looseness detection alarm device

Abstract

The invention relates to the technical field of connecting rod looseness detection, and discloses a bearing connecting rod looseness detection alarm device which comprises a base and a connecting rod structure, a square shell is arranged at the top of the base, an adjusting assembly is arranged between the base and the square shell, so that the height and the front-back position of the square shell are changed, and a plurality of sliding rods are arranged in the square shell. The two ends of the multiple sliding rods penetrate through the square shell, and the multiple sliding rods are detachably connected with the square shell through bolts. According to the invention, the moving distance of the connecting rod can be accurately measured, so that the displacement is accurately analyzed, the state of the bearing connecting piece can be accurately judged through the analysis of the forward and reverse displacement, and when the normal operation of equipment is influenced by a loosening trend or great abrasion damage, problems can be found in time, and the equipment is planned to be shut down; heavy loss is avoided, the detection alarm device can be conveniently disassembled and maintained, and the maintenance convenience of the detection alarm device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of connecting rod loosening detection, in particular to a bearing connecting rod loosening detection alarm device. Background Art

[0002] The bearing-connecting rod mechanism is a type of mechanical component, which refers to a mechanism composed of several components with certain relative motion connected by bearings and connectors. The connecting rod mechanism is widely used in various machines and instruments.

[0003] The transmission bearing using the connecting rod structure may loosen due to insufficient preload during the operation, rotation and vibration of the machine, which may cause the connecting rod structure to shake during operation, affecting the normal operation of the equipment. When a large shake occurs, serious consequences often occur. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a bearing connecting rod loosening detection and alarm device, which is mainly intended to solve the problem that the transmission bearing of the existing connecting rod structure may loosen due to insufficient pre-tightening force during the operation, rotation and vibration of the machine, thereby causing the connecting rod structure to shake during operation, affecting the normal operation of the equipment. When a large shake occurs, serious consequences often occur.

[0006] (II) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A bearing connecting rod loosening detection alarm device comprises a base and a connecting rod structure, wherein a square shell is arranged on the top of the base, an adjustment component is arranged between the base and the square shell, so that the height and front-back position of the square shell can be changed, a plurality of sliding rods are arranged in the square shell, both ends of the plurality of sliding rods pass through the square shell, the plurality of sliding rods are detachably connected to the square shell by bolts, the outer sides of the plurality of sliding rods are slidably connected to two fixing rings, a square plate is fixedly connected between the plurality of fixing rings, a clamping component for fixing the square plate is arranged in the square shell, a first avoidance groove penetrating the square plate is opened on one side of the square plate, and the connecting rod structure passes through the first avoidance groove A positioning groove is provided, and two connecting plates are slidably connected in the first positioning groove, and the two connecting plates are respectively located above and below the connecting rod structure. A second positioning groove is provided at the top and bottom of the first positioning groove, and a U-shaped plate is slidably connected in the second positioning groove, and the U-shaped plate is fixed to the connecting plate, a sensing end is embedded on one side of the U-shaped plate, mounting holes connected to the second positioning groove are provided at the top and bottom of the square plate, a rangefinder is fixedly connected in the mounting hole, an alarm is fixedly connected to an outer wall of one side of the square shell, the rangefinder is electrically connected to the sensing end and the alarm, and an elastic component for supporting the connecting plate is provided in the square plate.

[0009] Furthermore, the elastic component includes a plurality of limit grooves, and the plurality of limit grooves are all opened in the square plate, and the plurality of limit grooves are evenly and symmetrically distributed above and below the first avoidance groove. The plurality of limit grooves are all slidably connected with a limit rod, and one end of the limit rod extends into the first avoidance groove and is fixed to the connecting plate. The plurality of limit grooves are each provided with a spring, and the two ends of the spring are respectively fixed to the limit rod and the square plate.

[0010] Based on the above scheme, the clamping assembly includes a bidirectional screw rod, which is rotatably connected to a position below the square plate in the square shell. The outer side of the bidirectional screw rod is threadedly connected to two slides. The upper surfaces of the two slides are fixedly connected to two clamping plates for clamping the square plate. A guide component is provided in the square shell to enable the two slides to move horizontally.

[0011] As a further solution of the present invention, the guide components are two guide rods, and the two guide rods are fixedly connected to a position below the square plate in the square shell, and the two guide rods pass through two slides.

[0012] Furthermore, both ends of the bidirectional screw rod pass through the square shell and are fixedly connected with knobs for rotating the bidirectional screw rod.

[0013] On the basis of the above-mentioned scheme, the adjustment component includes a T-slot, which is opened in the base and is open upward. A slide plate is slidably connected in the T-slot, and an internally threaded sleeve is rotatably connected to the upper surface of the slide plate. A threaded rod is internally threaded in the internally threaded sleeve, and the threaded rod is fixed to the square shell. Two waist-shaped holes that penetrate the slide plate are opened on the upper surface of the slide plate, and two screws are fixedly connected to the bottom of the T-slot, and the two screws pass through the two waist-shaped holes respectively. The outer sides of the two screws are threadedly connected with nuts for locking and fixing the slide plate.

[0014] As a further solution of the present invention, two telescopic rods are fixedly connected to the upper surface of the slide plate, and one end of the telescopic parts of the two telescopic rods is fixed to the square shell.

[0015] Furthermore, a plurality of evenly distributed spherical grooves are provided on one side of the connecting plate, and rotating balls in contact with the connecting rod structure are rotatably connected in the plurality of spherical grooves, so that the connecting rod structure can move horizontally smoothly.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides a bearing connecting rod loosening detection and alarm device, which has the following beneficial effects:

[0018] 1. Through the coordinated use of the distance meter and the sensing end, the connecting rod is passed through the first avoidance groove and is located between the two connecting plates. When the connecting rod becomes loose, it will shake up and down, and the connecting rod will push the connecting plate to move, and the connecting plate will drive the sensing end to move. The distance meter senses the change in the distance to the sensing end, which will cause the alarm to sound. At the same time, the distance meter will accurately measure the moving distance of the connecting rod, so as to accurately analyze the displacement. The state of the bearing connector can be accurately judged through the analysis of the positive and reverse displacements. When there is a loose trend or wear and damage that greatly affects the normal operation of the equipment, the problem can be discovered in time, and the equipment can be shut down in a planned manner to avoid major losses.

[0019] 2. By setting the clamping assembly, the square plate is fixed in the square shell using the clamping assembly. When the rangefinder is damaged, the clamping assembly no longer fixes the square plate. At this time, the square plate can be taken out of the square shell, which is convenient for disassembly and maintenance of the detection alarm device, thereby improving the convenience of maintenance of the detection alarm device.

[0020] 3. Through the setting of the adjustment component, the adjustment component can adjust the height and front and rear position of the detection alarm device, so that the detection alarm device is convenient for detection with different connecting rod structures, thereby improving the use effect of the detection alarm device.

[0021] 4. Through the setting of the rotating ball, the connecting rod structure will contact the rotating ball when passing through the first avoidance groove. When the connecting rod structure moves, the rotating ball will rotate, thereby reducing the friction of the connecting rod structure and reducing the wear of the connecting rod structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional structural diagram of a bearing connecting rod loosening detection and alarm device proposed by the present invention;

[0023] Figure 2 A schematic cross-sectional view of the base structure of a bearing connecting rod loosening detection and alarm device proposed by the present invention;

[0024] Figure 3 This is a partial enlarged structural schematic diagram of a bearing connecting rod loosening detection and alarm device proposed by the present invention;

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of a square shell of a bearing connecting rod loosening detection and alarm device proposed by the present invention;

[0026] Figure 5 A schematic diagram of the internal structure of a bearing connecting rod loosening detection and alarm device proposed by the present invention;

[0027] Figure 6 This is a schematic diagram of the enlarged structure of part A of a bearing connecting rod loosening detection and alarm device proposed by the present invention;

[0028] Figure 7 This is a schematic diagram of the enlarged structure of part B of a bearing connecting rod loosening detection and alarm device proposed by the present invention.

[0029] In the figure: 1. base; 2. square shell; 3. connecting rod structure; 4. square plate; 5. bidirectional screw rod; 6. T-slot; 7. slide plate; 8. internal threaded sleeve; 9. threaded rod; 10. telescopic rod; 11. slide; 12. guide rod; 13. clamp; 14. knob; 15. slide rod; 16. fixing ring; 17. first avoidance groove; 18. second avoidance groove; 19. rangefinder; 20. U-shaped plate; 21. sensing end; 22. connecting plate; 23. ball groove; 24. rotating ball; 25. waist-shaped hole; 26. screw; 27. nut; 28. limit groove; 29. ​​limit rod; 30. spring. DETAILED DESCRIPTION

[0030] 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.

[0031] Reference Figure 1-Figure 7 A bearing connecting rod loosening detection alarm device comprises a base 1 and a connecting rod structure 3. A square shell 2 is arranged on the top of the base 1. An adjustment component is arranged between the base 1 and the square shell 2 to change the height and front-back position of the square shell 2. A plurality of slide bars 15 are arranged in the square shell 2. Both ends of the plurality of slide bars 15 pass through the square shell 2. The plurality of slide bars 15 are detachably connected to the square shell 2 by bolts. Two fixing rings 16 are slidably connected to the outer sides of the plurality of slide bars 15. A square plate 4 is welded between the plurality of fixing rings 16. A clamping component for fixing the square plate 4 is arranged in the square shell 2. One side of the square plate 4 is opened. There is a first avoidance groove 17 that runs through the square plate 4, and the connecting rod structure 3 passes through the first avoidance groove 17. Two connecting plates 22 are slidably connected in the first avoidance groove 17. The two connecting plates 22 are respectively located above and below the connecting rod structure 3. The top and bottom of the first avoidance groove 17 are both provided with a second avoidance groove 18. A U-shaped plate 20 is slidably connected in the second avoidance groove 18, and the U-shaped plate 20 is fixed to the connecting plate 22. A sensing end 21 is embedded on one side of the U-shaped plate 20. The top and bottom of the square plate 4 are both provided with mounting holes that are connected to the second avoidance groove 18. A The rangefinder 19 and the alarm are fixed to one side of the outer wall of the square shell 2 by bolts. The rangefinder 19 is electrically connected to the sensing end 21 and the alarm. The square plate 4 is provided with an elastic component to support the connecting plate 22. The connecting rod structure 3 is passed through the first avoidance groove 17 on the square plate 4, and the connecting rod structure 3 is passed between the two connecting plates 22. When the connecting rod structure 3 is loose, the connecting rod structure 3 will shake up and down. At this time, the connecting rod structure 3 will move the upper connecting plate 22 or the lower connecting plate 22, and the connecting plate 22 will drive the sensing end 21 to move, so that the sensing end 2 1 moves toward the distance meter 19. At this time, the distance meter 19 detects that the sensing end 21 is approaching. The distance between the sensing end 21 and the distance meter 19 changes, which will cause the alarm to sound. At the same time, the distance meter 19 will measure the distance between it and the sensing end 21, so as to accurately measure the moving distance of the connecting rod, so as to accurately analyze the displacement. The state of the bearing connector can be accurately judged through the analysis of the positive and negative displacements. When there is a loose trend or wear and damage that greatly affects the normal operation of the equipment, the problem can be discovered in time, and the equipment can be shut down in a planned manner to avoid major losses.

[0032] In the present invention, the elastic component includes a plurality of limit grooves 28, and the plurality of limit grooves 28 are all opened in the square plate 4. The plurality of limit grooves 28 are evenly and symmetrically distributed above and below the first avoidance groove 17. The plurality of limit grooves 28 are slidably connected to the limit rods 29, one end of the limit rod 29 extends into the first avoidance groove 17 and is fixed to the connecting plate 22, and a spring 30 is provided in the plurality of limit grooves 28, and the two ends of the spring 30 are respectively fixed to the limit rod 29 and the square plate 4. During the movement of the connecting plate 22, the limit rod 29 will drive the limit rod 29 to move into the limit groove 28, and the limit rod 29 will squeeze the spring 30. When the connecting rod structure 3 is reset, the connecting plate 22 will be reset by the force of the spring 30, so that the detection alarm device can be recycled. The clamping component includes a bidirectional screw rod 5, which is rotatably connected to the position below the square plate 4 in the square shell 2. The outer side of the bidirectional screw rod 5 is threadedly connected to two slides 11, and the upper surfaces of the two slides 11 are fixed to two opposite sides by bolts. The two guide rods 12 are fixed to the positions below the square plate 4 in the square shell 2 by bolts. The two guide rods 12 pass through the two slides 11. Both ends of the two-way screw rod 5 pass through the square shell 2 and are welded with knobs 14 for rotating the two-way screw rod 5. When the rangefinder 19 is damaged, the slide rod 15 is disassembled from the square shell 2 to disengage the slide rod 15 from the fixing ring 16. Then, the square plate 4 is supported at the bottom by hand, and then the two-way screw rod 5 is rotated. The two-way screw rod 5 drives the two slides 11 to move in opposite directions along the guide rod 12 through the threaded engagement with the two slides 11. The two slides 11 drive the clamping plate 13 to move, so that the clamping plate 13 no longer clamps and fixes the square plate 4. At this time, the square plate 4 can be taken out of the square shell 2, which is convenient for disassembly and maintenance of the detection alarm device, thereby improving the convenience of maintenance of the detection alarm device.

[0033] The adjustment component includes a T-slot 6, which is opened in the base 1 and is open upward. A slide plate 7 is slidably connected in the T-slot 6. An internal threaded sleeve 8 is rotatably connected to the upper surface of the slide plate 7. The internal threaded sleeve 8 is internally threaded with a threaded rod 9, and the threaded rod 9 is fixed to the square shell 2. Two waist-shaped holes 25 that penetrate the slide plate 7 are opened on the upper surface of the slide plate 7. Two screws 26 are welded to the bottom of the T-slot 6. The two screws 26 pass through the two waist-shaped holes 25 respectively. The outer sides of the two screws 26 are threadedly connected with screws for locking and fixing the slide plate 7. When the cap 27 encounters a higher connecting rod structure 3, the internal threaded sleeve 8 can be rotated. The internal threaded sleeve 8 can make the threaded rod 9 move upward through the threaded engagement between the internal threaded sleeve 8 and the threaded rod 9, and the threaded rod 9 will drive the square shell 2 to move upward, and the square shell 2 will drive the square plate 4 to move upward, so that the height of the first avoidance groove 17 can be changed, so that the first avoidance groove 17 is aligned with the connecting rod structure 3, so as to facilitate the detection of connecting rods of different heights suitable for the alarm device. When there is a front-to-back deviation between the connecting rod structure 3 and the first avoidance groove 17, the nut 27 is loosened so that the nut 27 is no longer The slide plate 7 is locked and fixed, and the slide plate 7 can be moved forward and backward in the T-slot 6. The slide plate 7 will drive the square shell 2 to move forward and backward through the internal threaded sleeve 8 and the threaded rod 9, so that the front and rear position of the first avoidance groove 17 can be changed, and the first avoidance groove 17 is aligned with the connecting rod structure 3, so that there is a slight difference between the front and rear position of the installation of the detection alarm device and the connecting rod structure 3, which improves the use effect of the detection alarm device. The upper surface of the slide plate 7 is fixed with two telescopic rods 10 by bolts, and one end of the telescopic part of the two telescopic rods 10 is Fixed to the square shell 2, a plurality of evenly distributed spherical grooves 23 are opened on one side of the connecting plate 22, and rotating balls 24 in contact with the connecting rod structure 3 are rotatably connected in the plurality of spherical grooves 23, so that the connecting rod structure 3 can move horizontally smoothly. The connecting rod structure 3 will reciprocate in the first avoidance groove 17 during normal operation. Since the rotating balls 24 are in contact with the connecting rod structure 3, the connecting rod structure 3 will cause the rotating balls 24 to rotate in the spherical grooves 23 during the movement, thereby reducing the friction of the connecting rod structure 3 and reducing the wear of the connecting rod structure 3.

[0034] Working principle of this embodiment: When in use, the connecting rod structure 3 is passed through the first avoidance groove 17 on the square plate 4, and the connecting rod structure 3 is passed between the two connecting plates 22. When the connecting rod structure 3 is loose, the connecting rod structure 3 will shake up and down. At this time, the connecting rod structure 3 will move the upper connecting plate 22 or the lower connecting plate 22, and the connecting plate 22 will drive the sensing end 21 to move, so that the sensing end 21 moves closer to the rangefinder 19. At this time, the rangefinder 19 detects that the sensing end 21 is approaching, and the distance between the sensing end 21 and the rangefinder 19 changes, so that the alarm will sound an alarm. At the same time, the rangefinder 19 will detect the distance between the sensing end 21 and the sensing end 21. The distance between them can be measured, so as to accurately measure the moving distance of the connecting rod, so as to accurately analyze the displacement. The state of the bearing connection can be accurately judged by analyzing the positive and negative displacement. When there is a loose trend or wear and damage that greatly affects the normal operation of the equipment, the problem can be discovered in time, and the equipment can be shut down in a planned manner to avoid major losses. During the movement, the connecting plate 22 will drive the limit rod 29 to move into the limit groove 28, and the limit rod 29 will squeeze the spring 30. When the connecting rod structure 3 is reset, the connecting plate 22 will be reset by the force of the spring 30, so that the detection alarm device can be recycled, and the connecting rod structure 3 is During normal operation, the first avoidance groove 17 will reciprocate. Since the rotating ball 24 is in contact with the connecting rod structure 3, the connecting rod structure 3 will cause the rotating ball 24 to rotate in the spherical groove 23 during the movement, thereby reducing the friction of the connecting rod structure 3 and reducing the wear of the connecting rod structure 3. When the connecting rod structure 3 is at a higher position, the internal threaded sleeve 8 can be rotated. The internal threaded sleeve 8 can make the threaded rod 9 move upward through the threaded engagement with the threaded rod 9. The threaded rod 9 will drive the square shell 2 to move upward, and the square shell 2 will drive the square plate 4 to move upward, thereby changing the height of the first avoidance groove 17 and making the first avoidance groove 17 and the connecting rod structure 3 closer. The rod structure 3 is aligned, so that the detection alarm device is suitable for connecting rods of different heights. When a front-to-back deviation occurs between the connecting rod structure 3 and the first avoidance groove 17, the nut 27 is loosened so that the nut 27 no longer locks the slide plate 7. At this time, the slide plate 7 can be moved back and forth in the T-slot 6, and the slide plate 7 will drive the square shell 2 to move back and forth through the internal threaded sleeve 8 and the threaded rod 9, thereby changing the front and back position of the first avoidance groove 17, so that the first avoidance groove 17 is aligned with the connecting rod structure 3, so that there is a slight difference between the installation of the detection alarm device and the front and back position of the connecting rod structure 3, thereby improving the use effect of the detection alarm device.

[0035] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0036] In the description of this article, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection; it can be a mechanical connection, it can be an electrical connection, or it can be a direct connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the description herein, it should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bearing connecting rod loosening detection and alarm device, comprising a base (1) and a connecting rod structure (3), characterized in that: A square shell (2) is provided on the top of the base (1), and an adjustment component is provided between the base (1) and the square shell (2) so that the height and front-to-rear position of the square shell (2) can be changed. A plurality of sliding rods (15) are provided in the square shell (2), and both ends of the plurality of sliding rods (15) pass through the square shell (2). The plurality of sliding rods (15) are detachably connected to the square shell (2) by bolts. Two fixing rings (16) are slidably connected to the outer sides of the plurality of sliding rods (15), and a square plate (4) is fixedly connected between the plurality of fixing rings (16). A clamping component for fixing the square plate (4) is provided in the square shell (2), and a first avoidance groove (17) penetrating the square plate (4) is provided on one side of the square plate (4), and the connecting rod structure (3) passes through the first avoidance groove (17). The first avoidance groove (17) Two connecting plates (22) are slidably connected inside, and the two connecting plates (22) are respectively located above and below the connecting rod structure (3). The top and bottom of the first avoiding groove (17) are both provided with a second avoiding groove (18). A U-shaped plate (20) is slidably connected inside the second avoiding groove (18), and the U-shaped plate (20) is fixed to the connecting plate (22). A sensing end (21) is embedded on one side of the U-shaped plate (20). The top and bottom of the square plate (4) are both provided with mounting holes connected to the second avoiding groove (18), and a rangefinder (19) is fixedly connected in the mounting hole. An alarm is fixedly connected to the outer wall of one side of the square shell (2), and the rangefinder (19) is electrically connected to the sensing end (21) and the alarm. An elastic component for supporting the connecting plate (22) is provided inside the square plate (4).

2. A bearing connecting rod loosening detection and alarm device according to claim 1, characterized in that: The elastic component comprises a plurality of limit grooves (28), the plurality of limit grooves (28) are all opened in the square plate (4), the plurality of limit grooves (28) are evenly and symmetrically distributed above and below the first avoidance groove (17), the plurality of limit grooves (28) are all slidably connected with a limit rod (29), one end of the limit rod (29) extends into the first avoidance groove (17) and is fixed to the connecting plate (22), the plurality of limit grooves (28) are all provided with a spring (30), and the two ends of the spring (30) are respectively fixed to the limit rod (29) and the square plate (4).

3. A bearing connecting rod loosening detection and alarm device according to claim 1, characterized in that: The clamping assembly comprises a bidirectional screw rod (5), the bidirectional screw rod (5) being rotatably connected to a position located below the square plate (4) in the square shell (2), the outer side of the bidirectional screw rod (5) being threadedly connected to two slides (11), the upper surfaces of the two slides (11) being fixedly connected to two clamping plates (13) for clamping the square plate (4), and a guide component for enabling the two slides (11) to move horizontally is provided in the square shell (2).

4. A bearing connecting rod loosening detection and alarm device according to claim 3, characterized in that: The guide components are two guide rods (12), and the two guide rods (12) are fixedly connected to a position below the square plate (4) in the square shell (2), and the two guide rods (12) pass through two slides (11).

5. A bearing connecting rod loosening detection and alarm device according to claim 4, characterized in that: Both ends of the bidirectional screw rod (5) pass through the square housing (2) and are fixedly connected to knobs (14) for rotating the bidirectional screw rod (5).

6. A bearing connecting rod loosening detection and alarm device according to claim 1, characterized in that: The adjustment assembly comprises a T-shaped slot (6), wherein the T-shaped slot (6) is provided in the base (1) and is open upwardly, a slide plate (7) is slidably connected in the T-shaped slot (6), an internal threaded sleeve (8) is rotatably connected to the upper surface of the slide plate (7), a threaded rod (9) is internally threadedly connected to the internal threaded sleeve (8), and the threaded rod (9) is fixed to the square shell (2), and two waist-shaped holes (25) penetrating the slide plate (7) are provided on the upper surface of the slide plate (7), and two screws (26) are fixedly connected to the bottom of the T-shaped slot (6), and the two screws (26) respectively pass through the two waist-shaped holes (25), and the outer sides of the two screws (26) are threadedly connected to nuts (27) for locking and fixing the slide plate (7).

7. A bearing connecting rod loosening detection and alarm device according to claim 6, characterized in that: Two telescopic rods (10) are fixedly connected to the upper surface of the slide plate (7), and one end of the telescopic parts of the two telescopic rods (10) is fixed to the square shell (2).

8. The bearing connecting rod loosening detection and alarm device according to claim 1, characterized in that: A plurality of evenly distributed spherical grooves (23) are provided on one side of the connecting plate (22), and rotating balls (24) in contact with the connecting rod structure (3) are rotatably connected in the plurality of spherical grooves (23), so that the connecting rod structure (3) can move horizontally smoothly.

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