Expansion sleeve looseness detection device

Abstract

The invention relates to the technical field of anti-loosening detection, in particular to an expansion sleeve loosening detection device which comprises a speed reducer shell A and a speed reducer shell B. An output shaft is installed between the inner wall of the speed reducer shell A and the inner wall of the speed reducer shell B. One end of the output shaft is sleeved with an expansion sleeve shell. The sides, away from each other, of the speed reducer shell A and the speed reducer shell B are each provided with an induction protruding block, and photoelectric induction switches are arranged on the sides, away from each other, of the speed reducer shell A and the speed reducer shell B and located above the two induction protruding blocks. Through cooperation of the photoelectric sensing switch and the sensing convex block, when the sensing convex block rotates to one side of the photoelectric sensing switch, the photoelectric sensing switch converts a photoelectric signal into an electric signal, the electric signal is remotely transmitted to the main control PLC, the PLC carries out calculation through period comparison of the electric signals on the two sides, the time difference of rotation on the two sides can be automatically calculated, and the rotation speed of the two sides can be calculated; therefore, the output synchronism of the speed reducer can be judged, and the loosening condition does not need to be judged manually.

Description

Technical Field

[0001] The invention relates to the technical field of anti-loosening detection, in particular to a loosening detection device for an expansion sleeve. Background Art

[0002] The output shaft of the belt cooler reducer is connected by an expansion sleeve. Once the expansion sleeve is loose, it will cause unplanned maintenance. At the same time, if the reducer has no output and is not discovered in time, it will cause blockage. This kind of output shaft failure often occurs in sintering production and causes long-term shutdown for maintenance.

[0003] For example, the fastener loosening detection device disclosed in publication number CN118010331A can clearly display the looseness of the fastener, accurately indicate, and is easy to disassemble and re-use, with low cost. At the same time, the detection process is convenient, direct and fast, making direct visual detection practical.

[0004] However, when the above patent is used, workers are required to manually observe and understand the looseness of the expansion sleeve manually. If the workers fail to observe in time or observe carefully, the expansion sleeve may still become loose. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] In order to solve the above technical problems, the present invention provides a device for detecting looseness of an expansion sleeve, comprising a reducer housing A and a reducer housing B, an output shaft is installed between the inner walls of the reducer housing A and the reducer housing B, one end of the output shaft is sleeved with an expansion sleeve housing, and the reducer housing A and the reducer housing B are both provided with sensing protrusions on the side away from each other, and a photoelectric sensing switch is provided on the side away from each other and above the two sensing protrusions.

[0007] When in use, the output shaft rotates, and when the output shaft rotates, the expansion sleeve shell will be driven to rotate. When the output shaft and the expansion sleeve shell rotate, they will respectively drive the two sensing bumps to rotate. When the sensing bump rotates to one side of the photoelectric sensor switch, the photoelectric sensor switch will convert the photoelectric signal into an electrical signal, and the electrical signal is remotely transmitted to the main control PLC. The PLC compares the periods of the electrical signals on both sides and can automatically calculate the time difference between the rotations on both sides and deduce the rotation speeds on both sides, thereby determining the synchronization of the reducer output.

[0008] In one embodiment of the present invention, a mounting seat is fixedly installed at the bottom of the two sensing bumps, and a mounting bolt is inserted into the inner wall of the mounting seat. One of the mounting seats is fixedly installed on the inner wall of the expansion sleeve shell by the set mounting bolts, and the other mounting seat is fixedly installed on the outer wall of the output shaft away from the expansion sleeve shell by the set mounting bolts.

[0009] In one embodiment of the present invention, a fixing ring is fixedly installed on the outer wall of the reducer housing A and the reducer housing B on the side away from each other, a mounting plate is arranged above the fixing ring, a telescopic plate is symmetrically and slidably installed on the inner wall of the mounting plate, a plurality of telescopic shafts and elastic members are fixedly installed between the outer wall of the telescopic plate and the inner wall of the mounting plate, the elastic members are respectively sleeved on the outer side of the telescopic shaft, a clamping plate is fixedly installed on the bottom of the telescopic plate, a clamping groove is symmetrically opened on the outer wall of the fixing ring, the clamping plate is clamped on the inner wall of the clamping groove, a horizontal plate is fixedly installed on the outer wall of the mounting plate, and the two photoelectric sensor switches are respectively fixedly installed on the inner wall of the horizontal plate.

[0010] In one embodiment of the present invention, the inner walls of the two horizontal plates are symmetrically rotatably mounted with a rotating shaft, the outer walls of the rotating shaft are rotatably mounted with a rotating seat, the outer wall of the rotating seat is fixedly mounted with a light shielding box, the two corresponding light shielding boxes are fitted together, and the two photoelectric sensor switches are respectively located on the inner sides of the corresponding light shielding boxes.

[0011] In one embodiment of the present invention, a connecting plate is fixedly installed on the outer wall of the fixing ring, an elastic bandage is fixedly installed on the side of the connecting plate away from the fixing ring, a pin is fixedly installed on one end of the elastic bandage, a connecting shaft is rotatably installed at the axis of the pin, pull plates are fixedly installed on both ends of the connecting shaft, a hook is fixedly installed on the side of the light-shielding box close to the fixing ring, and the pin is clamped in the inside of the hook.

[0012] In one embodiment of the present invention, a positioning seat is symmetrically fixedly installed on the outer wall of the mounting plate, a positioning column is symmetrically fixedly installed on the outer wall of the fixing ring, the outer wall of the positioning column is slidably connected to the inner wall of the positioning seat, a handle is fixedly installed on the top of the mounting plate, and a reinforcement plate is symmetrically fixedly installed between the outer walls of the mounting plate and the cross plate.

[0013] In one embodiment of the present invention, one end of the output shaft is provided with a connecting sleeve, the outer wall of the connecting sleeve is fixedly connected to the inner wall of the expansion sleeve shell, the outer wall of the connecting sleeve is provided with a fixing plate, the inner wall of the fixing plate is provided with fixing bolts, and the fixing plate is fixedly connected to the expansion sleeve shell through the provided fixing bolts.

[0014] In one embodiment of the present invention, the inner wall of the reducer housing A is provided with a plurality of connecting bolts, the reducer housing A and the reducer housing B are fixedly connected by the provided connecting bolts, the outer walls of the reducer housing A and the reducer housing B are symmetrically provided with heat dissipation windows, and the tops of the reducer housing A and the reducer housing B are provided with heat conduction grooves.

[0015] In one embodiment of the present invention, a junction box is fixedly installed on the top of the reducer housing A, and bases are fixedly installed on the bottoms of the reducer housing A and the reducer housing B.

[0016] In one embodiment of the present invention, a positioning plate is symmetrically fixedly mounted on the outer wall of the base, and a positioning hole is formed on the top of the positioning plate.

[0017] The above technical solution of the present invention has the following advantages compared with the prior art:

[0018] The device for detecting looseness of an expansion sleeve described in the present invention cooperates with a photoelectric sensing switch and a sensing protrusion. When the sensing protrusion rotates to one side of the photoelectric sensing switch, the photoelectric sensing switch converts the photoelectric signal into an electrical signal. The electrical signal is remotely transmitted to the main control PLC. The PLC performs calculations by comparing the periods of the electrical signals on both sides. It can automatically calculate the time difference between the rotations of the two sides and deduce the rotation speeds of the two sides, thereby judging the synchronization of the reducer output, without the need for manual observation of the expansion sleeve to judge the looseness.

[0019] The device for detecting looseness of an expansion sleeve described in the present invention can effectively detect whether the expansion sleeve and the output shaft are synchronized through the cooperation of the photoelectric sensing switch and the sensing protrusion. The synchronization of the output shaft of the reducer can be judged through the invention. At the same time, the degree of deterioration of the expansion sleeve can be judged from another perspective through the time difference. The maintenance personnel can be guided to formulate maintenance and replacement plans, which can effectively reduce the occurrence rate of sudden failures.

[0020] The expansion sleeve loosening detection device described in the present invention has structures such as elastic parts, clamping plates and clamping grooves. When installing the photoelectric sensor switch, the installation plate is pressed down to make the clamping plate snap into the inner side of the clamping groove. Under the action of the elastic parts, the clamping plate and the clamping groove are tightly fitted to complete the installation, making the installation of the photoelectric sensor switch very convenient. When disassembly is required, the installation plate is pulled upwards to separate the clamping plate to both sides and then detach from the clamping groove, thereby achieving the effect of easy disassembly and assembly of the photoelectric sensor switch.

[0021] The device for detecting loose expansion sleeves described in the present invention protects a photoelectric sensor switch inside by means of a light shielding box. The light shielding box can shield light and effectively block non-target light sources, reduce the influence of ambient light on the photoelectric sensor switch, and improve the detection accuracy. At the same time, the light shielding box can reduce the adhesion of dust and other debris to the photoelectric sensor switch, avoid dust affecting the normal transmission and reception of light, and ensure the cleanliness and operational stability of the photoelectric sensor switch.

[0022] The expansion sleeve loosening detection device described in the present invention can fix the light shielding box through the cooperation of the elastic bandage, the pin shaft and the hook, so that the light shielding box can maintain the protection of the photoelectric sensing switch. At the same time, when the light shielding box is fixed, the elastic bandage is in a taut state. Through the action of the reverse elastic force of the elastic bandage, the cross plate can be reinforced to increase the stability of the cross plate, thereby preventing the vibration generated during the operation of the reducer from affecting the normal detection of the photoelectric sensing switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0024] Figure 1 is a stereogram of the present invention;

[0025] Figure 2 It is a structural schematic diagram of another perspective of the present invention;

[0026] Figure 3 It is a schematic diagram of the structure of the expansion sleeve housing of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the sensing convex block of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the fixing ring of the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of the clamping groove of the present invention;

[0030] Figure 7 It is a structural schematic diagram of the mounting plate of the present invention;

[0031] Figure 8 is a structural cross-sectional view of the mounting plate of the present invention;

[0032] Fig. 9 It is a structural schematic diagram of the light shielding box of the present invention.

[0033] Explanation of the reference numerals in the specification: 1. Reducer housing A; 2. Reducer housing B; 3. Output shaft; 4. Expansion sleeve housing; 6. Sensing bump; 7. Mounting seat; 8. Mounting bolt; 9. Photoelectric sensor switch; 10. Fixing ring; 11. Mounting plate; 12. Telescopic plate; 13. Telescopic shaft; 14. Elastic member; 15. Clamping plate; 16. Clamping groove; 17. Horizontal plate; 18. Positioning seat; 19. Positioning column; 20. Handle; 21. Reinforcement plate; 22. Connecting sleeve; 23. Fixing plate; 24. Fixing bolt; 25. Connecting bolt; 26. Heat dissipation window; 27. Heat conduction groove; 28. Junction box; 29. ​​Base; 30. Positioning plate; 31. Positioning hole; 32. Rotating shaft; 33. Rotating seat; 34. Shading box; 35. Connecting plate; 36. Elastic bandage; 37. Pin; 38. Connecting shaft; 39. Pull plate; 40. Hook. DETAILED DESCRIPTION

[0034] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0035] like Figures 1 to 4 As shown, a device for detecting looseness of an expansion sleeve described in an embodiment of the present invention includes a reducer housing A1 and a reducer housing B2, an output shaft 3 is installed between the inner walls of the reducer housing A1 and the reducer housing B2, one end of the output shaft 3 is sleeved with an expansion sleeve housing 4, and a sensing protrusion 6 is provided on the side of the reducer housing A1 and the reducer housing B2 away from each other, and a photoelectric sensing switch 9 is provided on the side of the reducer housing A1 and the reducer housing B2 away from each other and above the two sensing protrusions 6, a mounting seat 7 is fixedly installed at the bottom of the two sensing protrusions 6, and the inner wall of the mounting seat 7 is plugged with a mounting bolt 8, one of the mounting seats 7 is fixedly installed on the inner wall of the expansion sleeve housing 4 by the set mounting bolts 8, and the other mounting seat 7 is fixedly installed on the outer wall of the output shaft 3 away from the expansion sleeve housing 4 by the set mounting bolts 8.

[0036] When in use, the output shaft 3 of the expansion sleeve loosening detection device provided by the present invention rotates, and the rotation of the output shaft 3 drives the expansion sleeve shell 4 to rotate. When the output shaft 3 and the expansion sleeve shell 4 rotate, they respectively drive the two sensing protrusions 6 to rotate. When the sensing protrusion 6 rotates to one side of the photoelectric sensing switch 9, the photoelectric sensing switch 9 converts the photoelectric signal into an electrical signal, and the electrical signal is remotely transmitted to the main control PLC. The PLC compares the periods of the electrical signals on both sides for calculation, and can automatically calculate the time difference between the rotations of the two sides and deduce the rotation speeds of the two sides, thereby judging the synchronization of the reducer output.

[0037] like Figures 5 to 8As shown, a fixing ring 10 is fixedly installed on the outer wall of the reducer housing A1 and the reducer housing B2 on the side away from each other, a mounting plate 11 is arranged above the fixing ring 10, a telescopic plate 12 is symmetrically slidably installed on the inner wall of the mounting plate 11, a plurality of telescopic shafts 13 and elastic members 14 are fixedly installed between the outer wall of the telescopic plate 12 and the inner wall of the mounting plate 11, the elastic members 14 are respectively sleeved on the outer side of the telescopic shaft 13, a clamping plate 15 is fixedly installed on the bottom of the telescopic plate 12, a clamping groove 16 is symmetrically opened on the outer wall of the fixing ring 10, the clamping plate 15 is clamped on the inner wall of the clamping groove 16, a transverse plate 17 is fixedly installed on the outer wall of the mounting plate 11, and two photoelectric sensor switches 9 are respectively fixedly installed on the inner wall of the transverse plate 17.

[0038] When installing the photoelectric sensor switch 9, place the mounting plate 11 above the fixing ring 10, and then press down the mounting plate 11. When the mounting plate 11 is pressed down, the clamping plate 15 will be squeezed by the fixing ring 10 and move to both sides. When the clamping plate 15 moves, it will drive the telescopic plate 12 to move and thus extend the elastic member 14. As the mounting plate 11 moves downward, the clamping plate 15 is finally stuck into the inner side of the clamping groove 16. When the clamping plate 15 enters the inner side of the clamping groove 16, the elastic member 14 is in a stretched state. Under the action of the reverse elastic force of the elastic member 14, the clamping plate 15 is tightly fitted with the clamping groove 16 to ensure the stability of the photoelectric sensor switch 9. When it is necessary to disassemble the photoelectric sensor switch 9, pull the mounting plate 11 upward to separate the clamping plate 15 to both sides, so that the clamping plate 15 can be detached from the clamping groove 16, thereby realizing the disassembly of the photoelectric sensor switch 9.

[0039] like Figures 5 to 9 As shown, the inner walls of the two horizontal plates 17 are symmetrically rotatably mounted with a rotating shaft 32, the outer wall of the rotating shaft 32 is rotatably mounted with a rotating seat 33, the outer wall of the rotating seat 33 is fixedly mounted with a light shielding box 34, the two corresponding light shielding boxes 34 are fitted together, and the two photoelectric sensor switches 9 are respectively located on the inner sides of the corresponding light shielding boxes 34.

[0040] During the operation of the device, the two corresponding light shielding boxes 34 fit together to protect the photoelectric sensor switch 9 inside. The light shielding box 34 can play a light shielding role, effectively block non-target light sources, reduce the impact of ambient light on the photoelectric sensor switch 9, and improve the detection accuracy. At the same time, the light shielding box 34 can reduce dust and other debris from adhering to the photoelectric sensor switch 9, avoid dust from affecting the normal transmission and reception of light, and ensure the cleanliness and operation stability of the photoelectric sensor switch 9.

[0041] like Figures 5 to 9As shown, a connecting plate 35 is fixedly installed on the outer wall of the fixing ring 10, an elastic bandage 36 is fixedly installed on the side of the connecting plate 35 away from the fixing ring 10, a pin 37 is fixedly installed on one end of the elastic bandage 36, a connecting shaft 38 is rotatably installed at the axis of the pin 37, and pull plates 39 are fixedly installed on both ends of the connecting shaft 38, a hook 40 is fixedly installed on the side of the light-shielding box 34 close to the fixing ring 10, and the pin 37 is clamped in the inside of the hook 40.

[0042] Through the cooperation of the elastic bandage 36, the pin 37 and the hook 40, the shading box 34 can be fixed so that the shading box 34 can maintain the protection of the photoelectric sensing switch 9. At the same time, when the shading box 34 is fixed, the elastic bandage 36 is in a taut state. Through the action of the reverse elastic force of the elastic bandage 36, the cross plate 17 can be reinforced to increase the stability of the cross plate 17 and prevent the vibration generated during the operation of the reducer from affecting the normal detection of the photoelectric sensing switch 9.

[0043] like Figures 5 to 8 As shown, a positioning seat 18 is symmetrically fixedly installed on the outer wall of the mounting plate 11, a positioning column 19 is symmetrically fixedly installed on the outer wall of the fixing ring 10, the outer wall of the positioning column 19 is slidingly connected to the inner wall of the positioning seat 18, a handle 20 is fixedly installed on the top of the mounting plate 11, and a reinforcement plate 21 is symmetrically fixedly installed between the outer walls of the mounting plate 11 and the cross plate 17.

[0044] When installing the photoelectric sensor switch 9, first align the positioning seat 18 and the positioning column 19, and then insert the positioning column 19 into the inner side of the positioning seat 18, and position the mounting plate 11 through the cooperation of the positioning column 19 and the positioning seat 18, so that the clamping plate 15 and the clamping groove 16 are aligned, which is convenient for the installation of the photoelectric sensor switch 9. At the same time, the positioning column 19 and the positioning seat 18 can limit the mounting plate 11, increase the stability of the mounting plate 11, and avoid the photoelectric sensor switch 9 from being offset during use. When installing and disassembling the photoelectric sensor switch 9, the worker can hold the handle 20 to move the mounting plate 11, which increases the convenience of operation. A reinforcement plate 21 is set between the mounting plate 11 and the cross plate 17, and the mounting plate 11 and the cross plate 17 are reinforced by the reinforcement plate 21 to enhance the structural strength.

[0045] like Figures 1 to 3 As shown, one end of the output shaft 3 is provided with a connecting sleeve 22, the outer wall of the connecting sleeve 22 is fixedly connected to the inner wall of the expansion sleeve shell 4, the outer wall of the connecting sleeve 22 is provided with a fixing plate 23, the inner wall of the fixing plate 23 is provided with fixing bolts 24, and the fixing plate 23 is fixedly connected to the expansion sleeve shell 4 through the provided fixing bolts 24.

[0046] The expansion sleeve housing 4 is sleeved on a suitable position of the output shaft 3, and the fixing bolts 24 are screwed to fix the fixing plate 23 and the expansion sleeve housing 4. At this time, the movement of the fixing plate 23 squeezes and fixes the connecting sleeve 22, thereby achieving fixation with the output shaft 3.

[0047] like Figure 1 to Figure 2 As shown, the inner wall of the reducer housing A1 is provided with a plurality of connecting bolts 25, and the reducer housing A1 and the reducer housing B2 are fixedly connected by the provided connecting bolts 25, and the outer walls of the reducer housing A1 and the reducer housing B2 are symmetrically provided with heat dissipation windows 26, and the tops of the reducer housing A1 and the reducer housing B2 are provided with heat conduction grooves 27.

[0048] The reducer housing A1 and the reducer housing B2 are connected by connecting bolts 25, so as to protect the core components such as the transmission shaft and gears inside, and prevent the internal components from being disturbed and damaged by the external environment during high-speed operation and torque transmission. Through its solid structure, a good protective barrier is provided for the internal components. The heat dissipation window 26, as a part of the reducer housing, can effectively dissipate the heat inside the reducer to the external environment through its special design and structure, thereby reducing the temperature of the reducer and ensuring its normal operation. The design of the heat conduction groove 27 can increase the contact area between the reducer housing and the surrounding air, thereby accelerating the heat transfer.

[0049] like Figure 1 to Figure 2 As shown, a terminal box 28 is fixedly installed on the top of the reducer housing A1, and a base 29 is fixedly installed on the bottom of the reducer housing A1 and the reducer housing B2.

[0050] Through the junction box 28, the power line and the control line can be smoothly connected to the reducer, ensuring that the motor can drive the reducer to work normally. At the same time, it can prevent the wires and cables from being eroded by the external environment, such as the invasion of harmful substances such as moisture and dust, thereby extending the service life of the wires and cables. The base 29 serves as a supporting structure, which can bear various forces and loads of the transmission system and transmit them to the ground or the machine foundation, thereby ensuring the stable operation of the reducer.

[0051] like Figure 1 to Figure 2 As shown, a positioning plate 30 is symmetrically fixedly mounted on the outer wall of the base 29 , and a positioning hole 31 is opened on the top of the positioning plate 30 .

[0052] The positioning plate 30 can be connected to the ground through the positioning hole 31 to fix the base 29, thereby fixing the reducer to prevent it from shifting or shaking during operation.

[0053] Working principle: When working, first install the photoelectric sensor switch 9. When installing the photoelectric sensor switch 9, place the mounting plate 11 above the fixing ring 10, and then press down the mounting plate 11. When the mounting plate 11 is pressed down, the clamping plate 15 will be squeezed by the fixing ring 10 and move to both sides. When the clamping plate 15 moves, it will drive the telescopic plate 12 to move and then stretch the elastic member 14. As the mounting plate 11 moves down, the clamping plate 15 is finally stuck in the inner side of the clamping groove 16, and the clamping plate 15 enters the clamping groove 16. When the photoelectric sensor switch 9 is disassembled, the mounting plate 11 is pulled upward to separate the clamping plate 15 to both sides, so that the clamping plate 15 can be disengaged from the clamping groove 16, thereby realizing the disassembly of the photoelectric sensor switch 9. When the device is running, the output shaft 3 rotates, and the rotation of the output shaft 3 drives the expansion sleeve housing 4 to rotate, and the output shaft 3 rotates. When the output shaft 3 and the expansion sleeve shell 4 rotate, the two sensing protrusions 6 will be driven to rotate respectively. When the sensing protrusion 6 rotates to one side of the photoelectric sensor switch 9, the photoelectric sensor switch 9 will convert the photoelectric signal into an electrical signal, and the electrical signal is remotely transmitted to the main control PLC. The PLC can automatically calculate the time difference between the rotations of the two sides by comparing the periods of the electrical signals on both sides, and deduce the rotation speeds of the two sides, so as to judge the synchronization of the output of the reducer. During the operation of the device, the corresponding two light shielding boxes 34 fit each other to protect the photoelectric sensor switch 9 inside. The light shielding box 34 can play a light shielding role, effectively blocking non-target light sources, reducing interference light from entering the receiver, and improving the accuracy of detection. At the same time, the light shielding box 34 can reduce the influence of dust and other debris on the photoelectric sensor switch 9. In addition, the horizontal plate 17 is connected to the fixing ring 10 under the action of the elastic bandage 36. The reverse elastic force of the elastic bandage 36 enhances the stability of the horizontal plate 17 to prevent the vibration generated during the operation of the reducer from affecting the detection work.

[0054] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A device for detecting looseness of an expansion sleeve, characterized in that: The invention comprises a reducer housing A (1) and a reducer housing B (2), wherein an output shaft (3) is installed between the inner walls of the reducer housing A (1) and the reducer housing B (2), and an expansion sleeve housing (4) is sleeved on one end of the output shaft (3), and sensing protrusions (6) are arranged on the sides of the reducer housing A (1) and the reducer housing B (2) away from each other, and a photoelectric sensing switch (9) is arranged on the sides of the reducer housing A (1) and the reducer housing B (2) away from each other and above the two sensing protrusions (6).

2. The expansion sleeve loosening detection device according to claim 1, characterized in that: A mounting seat (7) is fixedly mounted at the bottom of each of the two sensing protrusions (6), and a mounting bolt (8) is inserted into the inner wall of the mounting seat (7). One of the mounting seats (7) is fixedly mounted on the inner wall of the expansion sleeve shell (4) by means of the provided mounting bolt (8), and the other mounting seat (7) is fixedly mounted on the outer wall of the output shaft (3) at one end away from the expansion sleeve shell (4) by means of the provided mounting bolt (8).

3. The expansion sleeve loosening detection device according to claim 2, characterized in that: A fixing ring (10) is fixedly mounted on the outer wall of the reducer housing A (1) and the reducer housing B (2) on the side away from each other, a mounting plate (11) is arranged above the fixing ring (10), a telescopic plate (12) is symmetrically slidably mounted on the inner wall of the mounting plate (11), a plurality of telescopic shafts (13) and elastic members (14) are fixedly mounted between the outer wall of the telescopic plate (12) and the inner wall of the mounting plate (11), the elastic members (14) are respectively sleeved on the outer side of the telescopic shafts (13), a clamping plate (15) is fixedly mounted on the bottom of the telescopic plate (12), a clamping groove (16) is symmetrically opened on the outer wall of the fixing ring (10), the clamping plate (15) is clamped on the inner wall of the clamping groove (16), a transverse plate (17) is fixedly mounted on the outer wall of the mounting plate (11), and the two photoelectric induction switches (9) are respectively fixedly mounted on the inner wall of the transverse plate (17).

4. The expansion sleeve loosening detection device according to claim 3, characterized in that: The inner walls of the two horizontal plates (17) are symmetrically rotatably mounted with a rotating shaft (32), the outer wall of the rotating shaft (32) is rotatably mounted with a rotating seat (33), the outer wall of the rotating seat (33) is fixedly mounted with a light shielding box (34), the two corresponding light shielding boxes (34) are fitted together, and the two photoelectric sensor switches (9) are respectively located on the inner sides of the corresponding light shielding boxes (34).

5. The expansion sleeve loosening detection device according to claim 4, characterized in that: A connecting plate (35) is fixedly mounted on the outer wall of the fixing ring (10); an elastic bandage (36) is fixedly mounted on the side of the connecting plate (35) away from the fixing ring (10); a pin shaft (37) is fixedly mounted on one end of the elastic bandage (36); a connecting shaft (38) is rotatably mounted at the axis of the pin shaft (37); pull plates (39) are fixedly mounted on both ends of the connecting shaft (38); a hook (40) is fixedly mounted on the side of the light shielding box (34) close to the fixing ring (10); and the pin shaft (37) is clamped in the interior of the hook (40).

6. The expansion sleeve loosening detection device according to claim 5, characterized in that: A positioning seat (18) is symmetrically fixedly installed on the outer wall of the mounting plate (11), a positioning column (19) is symmetrically fixedly installed on the outer wall of the fixing ring (10), the outer wall of the positioning column (19) is slidably connected to the inner wall of the positioning seat (18), a handle (20) is fixedly installed on the top of the mounting plate (11), and a reinforcement plate (21) is symmetrically fixedly installed between the outer walls of the mounting plate (11) and the cross plate (17).

7. The expansion sleeve loosening detection device according to claim 6, characterized in that: One end of the output shaft (3) is sleeved with a connecting sleeve (22); the outer wall of the connecting sleeve (22) is fixedly connected to the inner wall of the expansion sleeve shell (4); the outer wall of the connecting sleeve (22) is provided with a fixing plate (23); the inner wall of the fixing plate (23) is provided with fixing bolts (24); the fixing plate (23) is fixedly connected to the expansion sleeve shell (4) via the fixing bolts (24).

8. The expansion sleeve loosening detection device according to claim 7, characterized in that: The inner wall of the reducer housing A (1) is provided with a plurality of connecting bolts (25), and the reducer housing A (1) and the reducer housing B (2) are fixedly connected by the provided connecting bolts (25). The outer walls of the reducer housing A (1) and the reducer housing B (2) are symmetrically provided with heat dissipation windows (26), and the tops of the reducer housing A (1) and the reducer housing B (2) are provided with heat conduction grooves (27).

9. The expansion sleeve loosening detection device according to claim 8, characterized in that: A junction box (28) is fixedly mounted on the top of the reducer housing A (1), and a base (29) is fixedly mounted on the bottom of both the reducer housing A (1) and the reducer housing B (2).

10. The expansion sleeve loosening detection device according to claim 9, characterized in that: A positioning plate (30) is symmetrically fixedly mounted on the outer wall of the base (29), and a positioning hole (31) is formed on the top of the positioning plate (30).

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