Temperature-vibration coupling monitoring device and method for mine explosion-proof brake

Abstract

This invention provides a vibration-temperature coupling monitoring device and method for explosion-proof brakes used in mining, relating to the field of measurement technology. The vibration-temperature coupling monitoring device for explosion-proof brakes includes two mounting brackets, each rotatably connected to a threaded rod and a threaded sleeve. The threaded rod and sleeve engage to drive the two mounting brackets to move towards each other. It also includes a detection structure, in which an acceleration sensor and a temperature sensor are linked via a connecting pipe. As the brackets move, these sensors respectively contact the sidewall and surface of the brake friction pad. The device includes a protective cover and a control structure. When the brackets close, a magnet drives a locking mechanism to disengage from the transmission gear to release the brake; when the brackets open, a tension spring pulls the locking mechanism to brake. The braking structure utilizes the centrifugal force of the rotating drive shaft to push a pin to lock the protective cover. This device is used to monitor the vibration and temperature changes of the brake friction pads, improving monitoring accuracy and operational safety.

Description

Technical Field

[0001] This invention relates to the field of measurement technology, and in particular to a vibration-temperature coupling monitoring device and method for explosion-proof brakes used in mining. Background Technology

[0002] During the operation of explosion-proof brakes in mines, the performance of the brake friction pads directly affects the braking effect and the safety of the equipment. Brake friction pads experience vibration and temperature changes during braking, and these parameters are crucial for evaluating the working condition and lifespan of the brake friction pads.

[0003] Most existing monitoring devices suffer from problems such as inconvenient installation and inaccurate monitoring. Some monitoring devices cannot fit tightly against the brake friction pads, resulting in inaccurate monitoring data; some devices are prone to collisions with brake friction pads or other components during installation, causing equipment damage; and some devices are not compatible with brake friction pads of different sizes and shapes, resulting in poor versatility.

[0004] Furthermore, the lack of an effective protection mechanism during brake operation means that the rotation of the brake disc during brake monitoring may pose a safety hazard. If the protective device accidentally opens, it could endanger workers. Therefore, to address these issues, this application proposes a vibration-temperature coupling monitoring device and method for mine explosion-proof brakes. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of traditional devices, such as inconvenient installation, inaccurate monitoring, lack of protection, and inaccurate installation positioning, and to propose a vibration-temperature coupling monitoring device and method for explosion-proof brakes used in mines.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The vibration-temperature coupling monitoring device for mine explosion-proof brakes includes:

[0008] Two mounting brackets are rotatably connected by threaded rods and threaded sleeves, the threaded rods and threaded sleeves being threadedly engaged to drive the two mounting brackets to move toward each other;

[0009] The mounting bracket consists of multiple arc-shaped mounting base plates and arc-shaped connecting plates connecting adjacent mounting base plates; the detection structure, located on one side of the mounting base plate, includes:

[0010] The cylindrical tube I and the connecting block are fixed to the mounting base plate;

[0011] Piston plate I is sealed and slidably connected inside cylinder I;

[0012] An acceleration measuring sensor is fixed to one side of piston plate I and extends out of cylinder I.

[0013] Spring I connects piston plate I to the inner wall of cylinder I;

[0014] Cylinder II, fixed to the connecting block;

[0015] Piston plate II is sealed and slidably connected inside cylinder II;

[0016] A temperature measurement sensor fixed to one side of piston plate II;

[0017] Tension spring I connects piston plate II to the inner wall of cylinder II;

[0018] And a connecting pipe that passes through the mounting base plate and connects cylinder I and cylinder II; wherein, when the two mounting brackets move toward each other so that the acceleration measuring sensor abuts against the side wall of the brake friction pad, piston plate I compresses spring I and pushes the air in cylinder I into cylinder II through the connecting pipe, driving piston plate II to overcome the tension of spring I so that the temperature measuring sensor extends out and adheres to the surface of the brake friction pad.

[0019] In one possible design, an L-shaped plate is fixed to one side of the mounting base located at both ends, and a rolling wheel is rotatably connected to one side of the connecting block. The rolling wheel is used to both roll and contact the brake disc to reduce friction and to limit the temperature measuring sensor so that it is close to the contact area between the brake friction pad and the brake disc.

[0020] In one possible design, multiple mounting base plates are arranged in an arc shape, the curvature of which matches the circumferential curvature of the brake disc.

[0021] One possible design also includes:

[0022] A bottom base plate; a protective cover rotatably disposed on the top of the bottom base plate; a support base fixed to the top of the bottom base plate; a drive shaft rotatably passing through the support base, with one end extending into the protective cover; a brake disc fixedly sleeved on the outer wall of the drive shaft; and a control structure, including:

[0023] A transmission gear is fixedly sleeved on the outer wall of the drive shaft; a locking tooth engages with the transmission gear; a movable slide is slidably disposed on the top of the bottom base plate; a fixed rod is fixed to one side of the support base and slides through the movable slide; multiple tension springs II, with their ends respectively fixed to the support base and the movable slide, are used to pull the movable slide so that the locking tooth engages with the transmission gear; a magnet I is fixed to the side of the movable slide away from the transmission gear; a magnet II is fixed to one side of the protective cover and is used to generate a magnetic attraction force with the magnet I; wherein, the magnetic attraction force is greater than the tension force of the tension spring II; wherein, when the protective cover is closed, the magnet II approaches the magnet I, the magnetic attraction force drives the movable slide to move, the locking tooth disengages from the transmission gear, and the brake is released; when the protective cover is opened, the tension spring II pulls the movable slide, the locking tooth engages with the transmission gear, and the brake is applied; a braking structure is used to brake the protective cover when the brake disc rotates, including:

[0024] A pin hole is provided on one side of the protective cover; a pin shaft is slidably disposed on the top of the bottom base plate for insertion and engagement with the pin hole.

[0025] In one possible design, the braking structure further includes a support base plate fixed to the top of the bottom base plate, with the pin sliding through the support base plate. When the protective cover covers the explosion-proof brake, the pin is inserted into a pin hole to limit the position of the protective cover.

[0026] In one possible design, a brake friction pad is also included, with concave grooves at both the top and bottom ends for sliding engagement with an L-shaped plate to limit the proximity of two mounting brackets.

[0027] One possible design also includes:

[0028] Rotating disk I is rotatably connected inside the protective cover; lever I is fixed to one side of rotating disk I; lever II is fixed to the outer wall of the drive shaft and cooperates with lever I to push lever I and rotating disk I to rotate when the drive shaft rotates; rotating disk II is fixed to one side of rotating disk I via a transmission shaft, and the outer circumference of rotating disk II is provided with multiple circular grooves; a sliding rod is slidably connected in the circular grooves; a tension spring III is fixed between one end of the sliding rod and the inner wall of the circular groove. Used to pull the sliding rod into the circular groove; a sliding plate, slidably connected to one side of the protective cover; a fixed base plate, fixed to one side of the protective cover, located below the sliding plate; a push rod, fixed to the bottom of the sliding plate, sliding through the fixed base plate; spring II, sleeved on the outer wall of the push rod, with both ends fixed to the sliding plate and the fixed base plate respectively; spring III, sleeved on the outer wall of the pin rod, with both ends fixed to the support base plate and the pin rod respectively; a trapezoidal groove, provided inside the pin rod;

[0029] When the drive shaft rotates, the pusher block II pushes the pusher block I to drive the rotating disk I and rotating disk II to rotate. The sliding rod extends out from the circular groove under the action of centrifugal force, pushing the sliding plate to move down. The pusher rod cooperates with the inclined surface of the trapezoidal groove, driving the pin shaft to extend into the pin hole and brake the protective cover.

[0030] In one possible design, the bottom of the lever II and the top and bottom of the lever I are both fixed with triangular blocks to prevent a hard collision between lever I and lever II or the drive shaft when the protective cover is closed.

[0031] In one possible design, the protective cover has an arc-shaped groove on the side near the support base to allow space for the drive shaft when the protective cover is closed.

[0032] The method of using the vibration-temperature coupling monitoring device for mine explosion-proof brakes in this application includes the following steps:

[0033] S1. Place the two mounting brackets on both sides of the brake friction pad, so that the threaded rod and the threaded sleeve form a threaded engagement, and at the same time, the L-shaped plate and the concave groove on the brake friction pad form a sliding engagement.

[0034] S2. The rotating threaded rod and threaded sleeve drive the mounting bracket to move towards each other until the acceleration measurement sensor contacts the side end of the brake friction pad and compresses the first spring, while the rolling wheel contacts the surface of the brake disc.

[0035] S3. When the acceleration measurement sensor compresses the first spring, the gas in the first cylinder is injected into the second cylinder through the connecting pipe, pushing the temperature measurement sensor out and making it fit against the brake friction pad and the contact surface near the brake disc.

[0036] S4. Rotate the protective cover to cover the explosion-proof brake. When it is closed, the magnetic attraction drives the locking teeth to disengage from the transmission gear, releasing the brake on the drive shaft.

[0037] S5. When the drive shaft rotates, the rotating disk is driven to rotate through the paddle assembly. The centrifugal force pushes the sliding rod to move outward and drives the push rod to insert into the trapezoidal groove, so that the pin shaft locks the protective cover.

[0038] S6. With the protective cover locked, the vibration data of the brake friction pads is collected by the acceleration measurement sensor, and the brake temperature change data is monitored in real time by the temperature measurement sensor.

[0039] Beneficial effects: In this invention, an acceleration measuring sensor is slidably connected to the cylinder I through a piston plate I, and a temperature measuring sensor is slidably connected to the cylinder II through a piston plate II. The cylinder I and cylinder II are fixedly connected by a connecting pipe. The two mounting brackets approach each other until the acceleration measuring sensor contacts the brake friction pad and extends into the cylinder I under the action of the brake friction pad. The air in the cylinder I pushes the temperature measuring sensor out of the cylinder II and onto the surface of the brake friction pad. Under the action of the rolling wheel, the position where the temperature measuring sensor contacts the brake friction pad is close to the position where the brake disc and the brake friction pad are in contact. This allows the temperature measuring sensor to accurately detect the temperature change of the brake friction pad when the brake friction pad brakes the brake disc, while the acceleration measuring sensor can detect the vibration speed, frequency, and acceleration of the brake friction pad when friction occurs.

[0040] In this invention, multiple tension springs II are fixed between the support base and the movable slide. The locking teeth are fixed on the side of the movable slide near the transmission gear, and a magnet I is fixed on the side of the movable slide away from the transmission gear. A magnet II is fixed on one side of the protective cover. When the protective cover rotates and fits against the top of the bottom substrate, the magnetic attraction between the magnet II and the magnet I drives the movable slide to move outward, releasing the locking teeth from the transmission gear. Therefore, when the protective cover is closed, the brake on the drive shaft can be released, facilitating subsequent monitoring. When the protective cover is opened, the locking teeth brake the transmission gear under the tension of the tension springs II, preventing the brake disc from rotating for monitoring without protection, thus ensuring the personal safety of the personnel.

[0041] In this invention, a lever I is fixed to one side of the rotating disk I, and a lever II is fixed to the outer wall of the drive shaft. The rotating disk II is slidably connected to a sliding rod through a circular groove. A sliding plate is slidably connected to one side of the protective cover. A push rod is fixed to the bottom of the sliding plate, and a trapezoidal groove is provided inside the pin shaft. The drive shaft drives the rotating disk II to rotate rapidly through lever I and lever II. The sliding rod extends outward under the action of centrifugal force and pushes the sliding plate and push rod downward. The push rod cooperates with the inclined surface of the trapezoidal groove to drive the pin shaft to extend into the pin hole, thereby braking the protective cover and preventing the protective cover from being opened during the process of monitoring the brake friction pads while the brake disc rotates rapidly.

[0042] In this invention, the vibration and temperature changes of the brake friction pads can be accurately monitored simultaneously. The protective cover works in conjunction with the control structure. When closed, the drive shaft brake is released for easy monitoring; when opened, the drive shaft is braked to ensure personnel safety. The braking structure utilizes the centrifugal force generated by the rotation of the drive shaft to brake the protective cover, preventing accidental opening of the protective cover during monitoring. In the detection structure, the connection between cylinder I and cylinder II allows the acceleration and temperature measurement sensors to be precisely attached to the brake friction pads. This enables the temperature measurement sensor to accurately detect temperature changes during braking, and the acceleration measurement sensor to detect the vibration speed, frequency, and acceleration of the brake friction pads, meeting the needs of accurate brake status monitoring in actual production. Attached Figure Description

[0043] Figure 1 A three-dimensional structural schematic diagram of the vibration-temperature coupling monitoring device for the mine explosion-proof brake provided by the present invention;

[0044] Figure 2 A three-dimensional structural schematic diagram of the mounting bracket for the vibration-temperature coupling monitoring device of the mine explosion-proof brake provided by the present invention;

[0045] Figure 3 A three-dimensional exploded structural diagram of cylinder I and cylinder II of the vibration-temperature coupling monitoring device for the mine explosion-proof brake provided by the present invention;

[0046] Figure 4 A three-dimensional structural schematic diagram from a first-view perspective of the vibration-temperature coupling monitoring device for the mine explosion-proof brake provided by the present invention;

[0047] Figure 5 A three-dimensional structural schematic diagram from a second perspective of the vibration-temperature coupling monitoring device for the mine explosion-proof brake provided by the present invention;

[0048] Figure 6 A three-dimensional structural diagram of the bottom substrate, the explosion-proof brake, and the brake disc of the vibration-temperature coupling monitoring device for the mine explosion-proof brake provided by the present invention;

[0049] Figure 7 A three-dimensional structural diagram of the brake friction pad and concave groove of the vibration-temperature coupling monitoring device for the mine explosion-proof brake provided by the present invention;

[0050] Figure 8 A three-dimensional exploded structural diagram of the brake disc, transmission gear, and movable slide of the vibration-temperature coupling monitoring device for the mine explosion-proof brake provided by the present invention;

[0051] Figure 9 A three-dimensional cross-sectional view of the protective cover of the vibration-temperature coupling monitoring device for the mine explosion-proof brake provided by the present invention;

[0052] Figure 10 A three-dimensional exploded structural diagram of the push block II, push block I, and rotating disk II of the vibration-temperature coupling monitoring device for the mine explosion-proof brake provided by the present invention;

[0053] Figure 11 A three-dimensional exploded view of the rotating disk II and sliding rod of the vibration-temperature coupling monitoring device for the mine explosion-proof brake provided by the present invention;

[0054] Figure 12 A three-dimensional cross-sectional view of the pin shaft of the vibration-temperature coupling monitoring device for the mine explosion-proof brake provided by the present invention;

[0055] Figure 13 A three-dimensional structural diagram of the bottom substrate and protective cover of the vibration-temperature coupling monitoring device for the mine explosion-proof brake provided by the present invention;

[0056] Figure 14 A three-dimensional structural diagram of the protective cover, rotating disk II, and sliding plate of the vibration-temperature coupling monitoring device for the mine explosion-proof brake provided by the present invention.

[0057] In the diagram: 1. Mounting bracket; 2. Threaded rod; 3. Threaded sleeve; 4. Mounting base plate; 5. Arc-shaped connecting plate; 6. L-shaped plate; 7. Cylinder I; 8. Piston plate I; 9. Acceleration sensor; 10. Spring I; 11. Connecting block; 12. Cylinder II; 13. Piston plate II; 14. Temperature sensor; 15. Tension spring I; 16. Connecting pipe; 17. Roller; 18. Bottom base plate; 19. Support base; 20. Drive shaft; 21. Brake disc; 22. Explosion-proof brake; 23. Brake friction pad; 4. Concave groove; 25. Transmission gear; 26. Moving slide; 27. Fixed rod; 28. Tension spring II; 29. ​​Clamping gear; 30. Magnet I; 31. Magnet II; 32. Protective cover; 33. Arc-shaped groove; 34. Rotating disk I; 35. Pulley I; 36. Pulley II; 37. Rotating disk II; 38. Circular groove; 39. Tension spring III; 40. Sliding rod; 41. Sliding plate; 42. Push rod; 43. Fixed base plate; 44. Spring II; 45. Support base plate; 46. Pin; 47. Trapezoidal groove; 48. Spring III. Detailed Implementation

[0058] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0059] In one embodiment: Refer to Figure 1 and Figure 2 A vibration-temperature coupling monitoring device for explosion-proof brakes used in mining, relating to the field of measurement technology, includes two mounting brackets 1. Each mounting bracket 1 consists of multiple mounting base plates 4 and arc-shaped connecting plates 5. The multiple mounting base plates 4 are arranged in an arc shape, and adjacent mounting base plates 4 are fixedly connected by arc-shaped connecting plates 5. L-shaped plates 6 are fixed to one side of the two mounting base plates 4 located at both ends.

[0060] Reference Figure 1 A threaded rod 2 and a threaded sleeve 3 are respectively inserted and rotated within two mounting brackets 1, with the threaded rod 2 and threaded sleeve 3 threadedly connected. By rotating the threaded rod 2 and threaded sleeve 3, the two mounting brackets 1 can be controlled to move closer or further apart. For example, when the threaded rod 2 is rotated clockwise, the threaded sleeve 3 moves along the threaded rod 2 due to the transmission action of the thread, thereby causing the two mounting brackets 1 to move closer together; when rotated counterclockwise, the two mounting brackets 1 move further apart. The threaded adjustment structure is simple and reliable, and can precisely control the distance between the two mounting brackets 1 to accommodate brake friction pads 23 of different sizes.

[0061] Reference Figure 2 and Figure 3A detection structure is provided on one side of the mounting base 4, including a cylinder I7 fixed to one side of the mounting base 4 and a connecting block 11. A piston plate I8 is slidably connected inside the cylinder I7, and an acceleration measuring sensor 9 extending to one side of the cylinder I7 is fixed to one side of the piston plate I8. A spring I10 is fixed to the inner wall of one side of the cylinder I7 via a spring seat on the side of the piston plate I8 away from the acceleration measuring sensor 9. The elastic coefficient of the spring I10 is in the range of 50-150 N / m. In the initial state, the acceleration measuring sensor 9 is in contact with the side end of the brake friction pad 23 under the action of the spring I10. When the brake friction pad 23 vibrates during braking, it will cause the acceleration measuring sensor 9 to vibrate through the mounting bracket 1. The acceleration measuring sensor 9 can monitor the vibration of the brake friction pad 23 in real time and convert the vibration signal into an electrical signal for transmission to the subsequent data processing system.

[0062] Reference Figure 2 and Figure 3 A cylinder II 12 is fixed to the side of the connecting block 11 near the cylinder I 7. A piston plate II 13 is slidably connected inside the cylinder II 12. A temperature measuring sensor 14 is fixed to one side of the piston plate II 13. A tension spring I 15 is fixed to the inner wall of the cylinder II 12 on the side of the piston plate II 13 away from the temperature measuring sensor 14 via a spring seat. The elastic coefficient of the tension spring I 15 is in the range of 30-100 N / m. In the initial state, the tension spring I 15 pulls the temperature measuring sensor 14 into the cylinder II 12, preventing the temperature measuring sensor 14 from colliding with the brake friction plate 23 when the two mounting brackets 1 are close to each other.

[0063] Reference Figure 2 and Figure 3 A connecting pipe 16 is fixedly inserted inside the mounting base plate 4, and cylinder I 7 and cylinder II 12 are fixedly connected through the connecting pipe 16. When the threaded rod 2 and the threaded sleeve 3 rotate, they drive the two mounting brackets 1 to approach each other until the acceleration measuring sensor 9 contacts the side end of the brake friction pad 23. Under the action of the brake friction pad 23, the sensor extends into cylinder I 7 and compresses spring I 10. The air inside cylinder I 7 is compressed and injected into cylinder II 12 through the connecting pipe 16. The air injected into cylinder II 12 pushes the piston plate II 13 outward, thereby pushing the temperature measuring sensor 14 out of cylinder II 12 and making it fit against the surface of the brake friction pad 23 for temperature detection. The contact position of the temperature measuring sensor 14 with the brake friction pad 23 is close to the position where the brake disc 21 and the brake friction pad 23 are in contact. In this way, when the two brake friction pads 23 close together to brake the brake disc 21, the temperature measuring sensor 14 can accurately detect the temperature change of the brake friction pad 23 during the braking process.

[0064] Reference Figure 3A roller 17 is rotatably connected to one side of the connecting block 11. The roller 17 has a dual function: on the one hand, it can avoid friction between the connecting block 11 and the brake disc 21, reducing energy loss and equipment wear; on the other hand, it can limit the temperature measuring sensor 14, so that the temperature measuring sensor 14 is close to the contact position between the brake friction pad 23 and the brake disc 21, which facilitates accurate monitoring of the temperature change of the brake friction pad 23 during the braking process.

[0065] Reference Figures 4-6 The system also includes a bottom base plate 18. An explosion-proof brake 22 is mounted on top of the bottom base plate 18. A protective cover 32 is rotatably mounted on the top of the bottom base plate 18 to protect the explosion-proof brake 22 during braking tests. A support base 19 is fixed to the top of the bottom base plate 18. A drive shaft 20 rotatably passes through the support base 19. One end of the drive shaft 20 is connected to an external drive source to drive the drive shaft 20 to rotate. One end of the drive shaft 20 extends into the protective cover 32. A brake disc 21 is fixedly fitted onto the outer wall of the drive shaft 20, and the brake disc 21 is located between two brake friction pads 23, which brake the brake disc 21.

[0066] Reference Figure 4 , Figure 5 and Figure 8 In order to protect the explosion-proof brake 22 through the protective cover 32 and control the driving and braking of the drive shaft 20, a control structure is provided on the top of the bottom base plate 18. The control structure includes a transmission gear 25 fixedly sleeved on the outer wall of the drive shaft 20 and a locking member 29 that engages with the transmission gear 25.

[0067] Reference Figure 4 , Figure 5 and Figure 8 The control structure also includes a movable slide 26 that slides on the top of the bottom base plate 18, and a fixed rod 27 that slides through the movable slide 26 and is fixed to one side of the support base 19. Multiple tension springs II 28 are fixed between the support base 19 and the movable slide 26 via spring seats, with the elastic coefficient of the tension springs II 28 ranging from 80 to 200 N / m. A locking tooth 29 is fixed to the side of the movable slide 26 near the transmission gear 25. The tension springs II 28 pull the locking tooth 29 to one side through the movable slide 26, causing the locking tooth 29 to brake the transmission gear 25, preventing the drive shaft 20 from rotating without protection, thus ensuring the safety of the operator.

[0068] Reference Figure 4 and Figure 8A magnet I 30 is fixed on the side of the movable slide 26 away from the transmission gear 25, and a magnet II 31 is fixed on the side of the protective cover 32. A magnetic attraction force is generated between the magnet II 31 and the magnet I 30, and the magnetic attraction force is greater than the tension of the tension spring II 28.

[0069] When the protective cover 32 rotates and fits against the top of the bottom base plate 18, magnet II 31 approaches magnet I 30. The magnetic attraction between magnet II 31 and magnet I 30 causes magnet I 30 and the movable slide 26 to move outward. Tension spring II 28 is stretched, and the locking tooth 29 disengages from the transmission gear 25, releasing the brake on the transmission gear 25. Therefore, when the protective cover 32 is closed, the brake on the drive shaft 20 can be released, facilitating subsequent brake monitoring. When the protective cover 32 is open, the locking tooth 29, under the tension of tension spring II 28, brakes the transmission gear 25, preventing the brake disc 21 from rotating for monitoring without protection, thus ensuring the safety of personnel.

[0070] Reference Figure 9 and Figure 12 The braking structure is used to brake the protective cover 32 when the brake disc 21 rotates, preventing the protective cover 32 from being opened during the rotation of the brake disc 21. The braking structure includes a pin hole provided on one side of the protective cover 32 and a pin rod 46 that slides on the top of the bottom base plate 18 and engages with the pin hole. The braking structure also includes a support base plate 45 fixed to the top of the bottom base plate 18, and the pin rod 46 slides through the support base plate 45.

[0071] When the protective cover 32 covers the explosion-proof brake 22, the pin rod 46 is inserted into the pin hole to limit the protective cover 32, preventing the protective cover 32 from being accidentally opened during the rotation of the brake disc 21, and ensuring the safety of the operator.

[0072] Reference Figure 7 The brake friction pad 23 has concave grooves 24 at both its top and bottom ends, and the L-shaped plate 6 slides in conjunction with the concave grooves 24. As the two mounting brackets 1 approach each other, the L-shaped plate 6 slides along the concave grooves 24, limiting the movement of the two mounting brackets 1 and ensuring that the mounting brackets 1 can be accurately installed on the brake friction pad 23, and ensuring the correct contact position between the detection structure and the brake friction pad 23.

[0073] Reference Figure 4 The protective cover 32 has an arc-shaped groove 33 on the side near the support base 19, which is used to make way for the drive shaft 20 when the protective cover 32 is closed, so that the protective cover 32 can close smoothly and avoid interference with the drive shaft 20.

[0074] In another embodiment: Refer to Figure 9 and Figure 10Inside the protective cover 32, a rotating disk I 34 is rotatably connected. A lever I 35 is fixed to one side of the rotating disk I 34, and a lever II 36 is fixed to the outer wall of the drive shaft 20, with lever II 36 engaging with lever I 35. When the drive shaft 20 rotates, the engagement of lever II 36 and lever I 35 drives the rotating disk I 34 and the rotating disk II 37, which is fixed to the rotating disk I 34 via a transmission shaft, to rotate. Triangular blocks are fixed to the bottom of lever II 36 and the top and bottom of lever I 35 to prevent hard collisions between lever I 35, lever II 36, and the drive shaft 20 when the protective cover 32 is closed, thus protecting the equipment components from damage.

[0075] Reference Figure 10 and Figure 11 The outer circumference of the rotating disk II 37 is provided with multiple circular grooves 38, and each of the multiple circular grooves 38 is slidably connected to a sliding rod 40. One end of the sliding rod 40 is fixed to the inner wall of one side of the circular groove 38 by a tension spring III 39 through a spring seat. The elastic coefficient of the tension spring III 39 is in the range of 40-120 N / m, and it is used to pull the sliding rod 40 into the circular groove 38.

[0076] Reference Figure 10 and Figure 11 A sliding plate 41 is slidably connected to one side of the protective cover 32, and a fixed base plate 43 located below the sliding plate 41 is fixed to one side of the protective cover 32. A push rod 42 that slides through the fixed base plate 43 is fixed to the bottom of the sliding plate 41. A spring II 44 is fixed between the sliding plate 41 and the fixed base plate 43 through a spring seat, and the spring II 44 is sleeved on the outer wall of the push rod 42. The elastic coefficient of the spring II 44 is in the range of 60-150 N / m. The sliding plate 41 cooperates with the sliding rod 40. When the drive shaft 20 drives the brake disc 21 to rotate, the drive shaft 20 pushes the rotating disc I 34 and rotating disc II 37 to rotate rapidly through the cooperation of the paddle II 36 and the paddle I 35. Under the action of centrifugal force generated during the rotation of the rotating disc II 37, the sliding rod 40 extends outward, and the tension spring III 39 is stretched. When the sliding rod 40 extends outward, it pushes the sliding plate 41 to move down and compresses the spring II 44.

[0077] Reference Figures 10-12A spring III 48 is fitted onto the outer wall of the pin rod 46, with an elastic coefficient ranging from 70 to 180 N / m. Both ends of the spring III 48 are fixedly connected to one side of the support base plate 45 and the outer wall of the pin rod 46 via spring seats. A trapezoidal groove 47 is provided inside the pin rod 46, and the push rod 42 engages with the inclined surface of the trapezoidal groove 47. The sliding plate 41 pushes the push rod 42 to extend into the trapezoidal groove 47, and the engagement of the push rod 42 with the inclined surface of the trapezoidal groove 47 drives the pin rod 46 to extend into the pin hole, thereby braking the protective cover 32. This prevents the protective cover 32 from opening during the rapid rotation of the brake disc 21 to monitor the brake friction pad 23, further ensuring the safety of the operator.

[0078] The method for using the vibration-temperature coupling monitoring device for mine explosion-proof brakes includes the following steps:

[0079] S1. Place the two mounting brackets 1 on both sides of the brake friction pad 23, with the threaded rod 2 and threaded sleeve 3 threadedly engaged. Then, the L-shaped plate 6 slides into the concave groove 24. As the threaded rod 2 and threaded sleeve 3 rotate, the two mounting brackets 1 are driven to move closer together until the acceleration measuring sensor 9 contacts the side end of the brake friction pad 23. Under the action of the brake friction pad 23, the sensor extends into the cylinder I7 and compresses the spring I10. At the same time, the rolling wheel 17 contacts the surface of the brake disc 21 to avoid friction between the brake disc 21 and the connecting block 11. When the acceleration measuring sensor 9 extends into the cylinder I7, the cylinder I7... Air is injected into cylinder II 12 through connecting pipe 16, and temperature measuring sensor 14 is pushed out of cylinder II 12. Temperature measuring sensor 14 is attached to the surface of brake friction pad 23. The position of temperature measuring sensor 14 in contact with brake friction pad 23 is close to the position where brake disc 21 is attached to brake friction pad 23. When the two brake friction pads 23 close together to brake disc 21, temperature measuring sensor 14 can accurately detect the temperature change of brake friction pad 23 when brake friction pad 23 brakes brake disc 21. Acceleration measuring sensor 9 can detect the vibration speed, frequency and acceleration of brake friction pad 23 when friction occurs.

[0080] S2. After assembling the two mounting brackets 1 with the brake friction pads 23, rotate the protective cover 32 so that it covers the explosion-proof brake 22, preventing injury to personnel due to accidental explosion during later monitoring. When the protective cover 32 rotates and fits against the top of the bottom base plate 18, magnet II 31 and magnet I 30 approach each other. The magnetic attraction between magnet II 31 and magnet I 30 drives magnet I 30 and the movable slide 26 to move outward, and tension spring II 28 is stretched. The locking tooth 29 disengages from the transmission gear 25, releasing the brake on the transmission gear 25. Therefore, when the protective cover 32 is closed, the brake on the drive shaft 20 can be released, facilitating later monitoring. When the protective cover 32 is opened, the locking tooth 29 brakes the transmission gear 25 under the tension of tension spring II 28, preventing the brake disc 21 from rotating for monitoring without protection, ensuring the personal safety of personnel.

[0081] S3. After the protective cover 32 is closed, the pin hole on one side of the protective cover 32 is aligned with the pin rod 46. When the external motor drives the brake disc 21 to rotate through the drive shaft 20, the drive shaft 20 pushes the rotating disc 134 and rotating disc 237 to rotate rapidly through the cooperation of the paddle block 26 and the paddle block 135. The sliding rod 40 extends outward under the action of the centrifugal force generated during the rotation of the rotating disc 237, and the tension spring 39 is stretched. When the sliding rod 40 extends outward, it pushes the sliding plate 41 to move down and compresses the spring 244. The sliding plate 41 pushes the push rod 42 to extend into the trapezoidal groove 47. The push rod 42 and the inclined surface of the trapezoidal groove 47 cooperate to drive the pin rod 46 to extend into the pin hole, thereby braking the protective cover 32 and preventing the protective cover 32 from being opened during the process of monitoring the brake friction pad 23 by the rapid rotation of the brake disc 21.

[0082] It should be understood that the working principles and electrical connection methods of the acceleration measurement sensor 9 and the temperature measurement sensor 14 are conventional techniques in this field. Given that the relevant technical solutions are well known to those skilled in the art, this specification will not elaborate on specific implementation details to avoid redundancy. Those skilled in the art can reasonably select and adapt the aforementioned sensor models, parameters, and configuration methods based on actual needs or application scenarios and existing technical specifications.

[0083] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0084] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A vibration-temperature coupling monitoring device for a mine explosion-proof brake, comprising two mounting brackets (1), each having a threaded rod (2) and a threaded sleeve (3) rotatably passing through it, wherein the threaded rod (2) and the threaded sleeve (3) are threadedly engaged to drive the two mounting brackets (1) to move toward each other; The mounting bracket (1) consists of multiple arc-shaped mounting base plates (4) and arc-shaped connecting plates (5) connecting adjacent mounting base plates (4), characterized in that, Also includes: The detection structure, located on one side of the mounting substrate (4), includes: The cylindrical I (7) and connecting block (11) are fixed to the mounting base plate (4); Piston plate I (8) is sealed and slidably connected inside cylinder I (7); An acceleration measurement sensor (9) is fixed to one side of piston plate I (8) and extends out of cylinder I (7); Spring I (10) connects piston plate I (8) and the inner wall of cylinder I (7); Cylinder II (12) fixed to connecting block (11); Piston plate II (13) is sealed and slidably connected inside cylinder II (12); Temperature measurement sensor (14) fixed to one side of piston plate II (13); Tension spring I (15) connects piston plate II (13) and inner wall of cylinder II (12); And a connecting pipe (16) that penetrates the mounting base plate (4) and connects cylinder I (7) and cylinder II (12); When the two mounting brackets (1) move toward each other, causing the acceleration measuring sensor (9) to abut against the side wall of the brake friction pad (23), the piston plate I (8) compresses the spring I (10) and pushes the air in the cylinder I (7) to be injected into the cylinder II (12) through the connecting pipe (16), driving the piston plate II (13) to overcome the tension of the tension spring I (15) so that the temperature measuring sensor (14) extends out and adheres to the surface of the brake friction pad (23).

2. The vibration-temperature coupling monitoring device for the mine explosion-proof brake according to claim 1, characterized in that, An L-shaped plate (6) is fixed on one side of the mounting base plate (4) located at both ends, and a rolling wheel (17) is rotatably connected on one side of the connecting block (11). The rolling wheel (17) is used to roll and contact the brake disc (21) to reduce friction, and also to limit the temperature measuring sensor (14) to be close to the contact area between the brake friction pad (23) and the brake disc (21).

3. The vibration-temperature coupling monitoring device for the mine explosion-proof brake according to claim 2, characterized in that, Multiple mounting base plates (4) are arranged in an arc shape, and their curvature matches the circumferential curvature of the brake disc (21).

4. The vibration-temperature coupling monitoring device for the mine explosion-proof brake according to claim 3, characterized in that, Also includes: Bottom substrate (18); protective cover (32), rotatably disposed on top of the bottom substrate (18); A support base (19) is fixed to the top of the bottom base plate (18); a drive shaft (20) rotatably passes through the support base (19) and extends one end into the protective cover (32); a brake disc (21) is fixedly sleeved on the outer wall of the drive shaft (20); and a control structure includes: A transmission gear (25) is fixedly sleeved on the outer wall of the drive shaft (20); a locking tooth (29) meshes with the transmission gear (25); a movable slide (26) is slidably disposed on the top of the bottom base plate (18); a fixed rod (27) is fixed to one side of the support base (19) and slides through the movable slide (26); multiple tension springs II (28) are fixed at both ends to the support base (19) and the movable slide (26) respectively, and are used to pull the movable slide (26) so that the locking tooth (29) meshes with the transmission gear (25); a magnet I (30) is fixed to the side of the movable slide (26) away from the transmission gear (25); a magnet II (31) is fixed to one side of the protective cover (32) and is used to generate a magnetic attraction force with the magnet I (30), the magnetic attraction force being greater than the tension force of the tension spring II (28); When the protective cover (32) is closed, the magnet II (31) approaches the magnet I (30), and the magnetic attraction drives the movable slide (26) to move. The locking tooth (29) disengages from the transmission gear (25) and releases the brake. When the protective cover (32) is opened, the tension spring II (28) pulls the movable slide (26), and the locking tooth (29) engages with the transmission gear (25) to brake. A braking structure for braking the protective cover (32) when the brake disc (21) rotates includes: A pin hole is provided on one side of the protective cover (32); a pin shaft (46) is slidably provided on the top of the bottom base plate (18) for insertion and engagement with the pin hole.

5. The vibration-temperature coupling monitoring device for the mine explosion-proof brake according to claim 4, characterized in that, The braking structure also includes a support base plate (45), which is fixed to the top of the bottom base plate (18), and the pin (46) slides through the support base plate (45). When the protective cover (32) covers the explosion-proof brake (22), the pin rod (46) is inserted into the pin hole to limit the protective cover (32).

6. The vibration-temperature coupling monitoring device for the mine explosion-proof brake according to claim 5, characterized in that, It also includes a brake friction pad (23), the top and bottom of which are provided with concave grooves (24) for sliding cooperation with the L-shaped plate (6) to limit the two mounting brackets (1) that are close to each other.

7. The vibration-temperature coupling monitoring device for the mine explosion-proof brake according to claim 6, characterized in that, Also includes: Rotating disk I (34) is rotatably connected inside the protective cover (32); A lever I (35) is fixed to one side of the rotating disk I (34); a lever II (36) is fixed to the outer wall of the drive shaft (20) and cooperates with the lever I (35) to push the lever I (35) and the rotating disk I (34) to rotate when the drive shaft (20) rotates; a rotating disk II (37) is fixed to one side of the rotating disk I (34) through a transmission shaft, and the outer circumferential wall of the rotating disk II (37) is provided with multiple circular grooves (38); a sliding rod (40) is slidably connected in the circular groove (38); a tension spring III (39) is fixed between one end of the sliding rod (40) and the inner wall of the circular groove (38) to pull the sliding rod (40) into the circular groove. The groove (38) contains: a sliding plate (41) slidably connected to one side of the protective cover (32); a fixed base plate (43) fixed to one side of the protective cover (32) and located below the sliding plate (41); a push rod (42) fixed to the bottom of the sliding plate (41) and sliding through the fixed base plate (43); a spring II (44) sleeved on the outer wall of the push rod (42) and fixed at both ends to the sliding plate (41) and the fixed base plate (43) respectively; a spring III (48) sleeved on the outer wall of the pin rod (46) and fixed at both ends to the support base plate (45) and the pin rod (46) respectively; and a trapezoidal groove (47) disposed in the pin rod (46). When the drive shaft (20) rotates, the paddle block II (36) pushes the paddle block I (35) to drive the rotating disk I (34) and rotating disk II (37) to rotate. The sliding rod (40) extends out from the circular groove (38) under the action of centrifugal force, pushing the sliding plate (41) to move down. The push rod (42) cooperates with the inclined surface of the trapezoidal groove (47), driving the pin shaft (46) to extend into the pin hole and brake the protective cover (32).

8. The vibration-temperature coupling monitoring device for the mine explosion-proof brake according to claim 7, characterized in that, The bottom of the lever II (36) and the top and bottom of the lever I (35) are both fixed with triangular blocks, which are used to prevent hard collisions between lever I (35) and lever II (36) or drive shaft (20) when the protective cover (32) is closed.

9. The vibration-temperature coupling monitoring device for the mine explosion-proof brake according to claim 8, characterized in that, The protective cover (32) has an arc-shaped groove (33) on the side near the support base (19) to make way for the drive shaft (20) when the protective cover (32) is closed.

10. A method for using a vibration-temperature coupling monitoring device for a mine explosion-proof brake, applied to the vibration-temperature coupling monitoring device for a mine explosion-proof brake as described in claim 9, characterized in that... Includes the following steps: S1. Place the two mounting brackets (1) on both sides of the brake friction pad (23) so that the threaded rod (2) and the threaded sleeve (3) are threaded together, and the L-shaped plate (6) and the concave groove (24) are slidably engaged. S2, the rotating threaded rod (2) and the threaded sleeve (3) drive the mounting bracket (1) to move towards each other until the acceleration measurement sensor (9) contacts the side end of the brake friction pad (23) and compresses the spring I (10), while the rolling wheel (17) contacts the surface of the brake disc (21); S3. When the acceleration measurement sensor (9) compresses the spring I (10), the gas in the cylinder I (7) is injected into the cylinder II (12) through the connecting pipe (16), which pushes out the temperature measurement sensor (14) and puts it into contact with the brake friction pad (23) and the contact surface near the brake disc (21); S4. Rotate the protective cover (32) to cover the explosion-proof brake (22). When it is closed, the magnetic attraction between magnet II (31) and magnet I (30) drives the locking piece (29) to disengage from the transmission gear (25) and release the brake of the drive shaft (20). S5. When the drive shaft (20) rotates, the rotating disk (37) is driven to rotate by the paddle block I (35) and paddle block II (36). The centrifugal force pushes the sliding rod (40) to move outward and drives the push rod (42) to insert into the trapezoidal groove (47), so that the pin shaft (46) locks the protective cover (32). S6. With the protective cover (32) locked, the vibration data of the brake friction pad (23) is collected by the acceleration measurement sensor (9), and the brake temperature change data is monitored in real time by the temperature measurement sensor (14).

Images