A torque testing device for blower bearings

Abstract

This application discloses a torque detection device for blower bearings, comprising a frame, a servo motor, a shaft connected to the output end of the servo motor, a torque sensor mounted on the shaft, a circumferential load device, and a radial load device. The radial load device includes a bracket mounted on the frame, a force-applying mechanism for applying radial force, a detection mechanism for detecting the presence of protrusions on the shaft, and a cooling mechanism for cooling the shaft. The detection mechanism includes a detection frame vertically mounted on the bracket, multiple detection plates movably mounted on the detection frame, an identification component for indicating damage to the detection plates, and a replacement component for replacing the detection plates. The detection plates are damaged when they are in contact with the outer wall of the shaft and when a protrusion exists on the shaft. The bottom of the detection frame is open. This application has the effect of detecting both overheating and the presence of protrusions on the shaft, improving torque detection efficiency.

Description

Technical Field

[0001] This application relates to the field of torque testing, and in particular to a torque testing device for a blower bearing. Background Technology

[0002] Currently, blower bearings experience a certain amount of torque during operation. To ensure the normal operation of these bearings, it is necessary to test this torque. Traditional torque testing methods primarily involve indirectly calculating the torque borne by the blower bearing by measuring the deformation of the bearing housing. This method is complex and lacks precision. Furthermore, the torque testing process is cumbersome, requiring manual adjustment of numerous devices. Therefore, it is necessary to design a more accurate and convenient blower bearing torque testing device.

[0003] Chinese patent publication number CN118443200A discloses a torque detection device for blower bearings. This torque detection device includes a servo motor, a shaft, an axial load device, a radial load device, and a force sensor. The servo motor is mounted on a support, and the shaft is installed at the output end of the servo motor via a coupling. The axial load device includes a horizontal hydraulic press and a mounting device. The mounting device is installed at the tail end of the shaft and fixed to the support, while the horizontal hydraulic press is installed at the tail end of the mounting device. A bearing is installed within the mounting device. The force sensor is mounted on the radial load device. This torque detection device for blower bearings, by rationally combining components such as the servo motor, shaft, axial load device, radial load device, and force sensor, can accurately measure the torque borne by the blower bearing, ensuring its normal operation.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: if impurities or other attachments adhere to the outer wall of the shaft before radial pressure is applied, that is, if there are hard protrusions, the shaft may jam during rotation, or even experience large local radial forces on the shaft. Therefore, the shaft surface needs to be inspected before testing. Summary of the Invention

[0005] To address the issue of protrusions on the shaft affecting testing, this application provides a torque testing device for blower bearings.

[0006] The torque testing device for blower bearings provided in this application adopts the following technical solution:

[0007] A torque detection device for a blower bearing includes a frame, a servo motor, a rotating shaft connected to the output end of the servo motor, a torque sensor mounted on the rotating shaft, a circumferential load device, and a radial load device.

[0008] The radial load device includes a bracket mounted on the frame, a force-applying mechanism for applying radial force, a detection mechanism for detecting whether there are protrusions on the shaft, and a cooling mechanism for cooling the shaft.

[0009] The testing mechanism includes a testing frame that is lifted and mounted on a support, multiple testing pieces that are movably mounted on the testing frame, an identification component for indicating that the testing pieces are damaged, and a replacement component for replacing the testing pieces. The testing pieces are damaged when they are in contact with the outer wall of the rotating shaft and there is a protrusion on the rotating shaft. The bottom of the testing frame is open.

[0010] Optionally, the marking component includes a control unit for controlling the closing / opening of the bottom of the detection frame, a light source, a light sensor, and a buzzer electrically connected to the light sensor. The light source and the light sensor are configured in multiple groups and are respectively located on opposite sides of the detection frame.

[0011] Optionally, the control unit includes a control plate and a torsion spring. One side of the control plate is hinged to one side of the opening of the detection frame. The torsion spring is used to connect the control plate and the detection frame. When the detection piece moves out of the detection frame, the control plate unfolds outward, and when the detection piece moves into the detection frame, the control plate closes the detection frame.

[0012] Optionally, the replacement assembly includes a replacement plate, a lifting plate that is lifted and lowered within the testing frame, a first electromagnet, and a second electromagnet. The replacement plate is fixed to the top of the testing piece. The testing frame has replacement grooves on both sides along the length of the testing piece. The two ends of the replacement plate slide within the two replacement grooves respectively. The width of the opening of the testing frame is adapted to the length of the testing piece. The two ends of the replacement plate are placed on the bottom inner wall of the testing frame. The first electromagnet is fixed to the top of the testing frame, and the second electromagnet is fixed to the replacement plate. Multiple first and second electromagnets are provided, and each testing piece corresponds to the first electromagnet and the second electromagnet respectively.

[0013] Optionally, the force-applying mechanism includes a force-applying cylinder, a hydraulic cylinder, and a force-applying component mounted on the frame. The force-applying component is slidably disposed within the force-applying cylinder, and its movement direction is along the radial direction of the rotating shaft. The force-applying component is arc-shaped and adapted to the rotating shaft. The cooling mechanism includes a cooling rack mounted on the frame, a protective arc plate slidably disposed on the cooling rack, a viewing component for detecting whether the rotating shaft is overheating, and a water-cooling component for water-cooling the rotating shaft. The protective arc plate moves along the length direction of the rotating shaft, and the protective arc plate and the force-applying component together form a protective cavity to protect the rotating shaft.

[0014] Optionally, the viewing component includes an oil chamber, an adsorption element, an adsorption plate, a viewing electric actuator for reciprocating the adsorption plate, and a judgment part for determining whether the rotating shaft makes a sound when it encounters lubricating oil. The protective arc plate is provided with a clearance groove for the sliding of the adsorption plate below the oil chamber. One end of the adsorption element is fixedly connected to one end of the clearance groove, and the other end is fixedly connected to the adsorption plate. The opening of the oil chamber communicates with the clearance groove, and the adsorption element is located below the opening of the oil chamber. A solenoid valve is provided at the opening of the oil chamber, and the adsorption element will not contact the rotating shaft.

[0015] Optionally, the judgment unit includes a loudspeaker and a cooling group for cooling the lubricating oil in the oil cavity, the protective arc plate is provided with a mounting hole, and the loudspeaker is disposed in the mounting hole.

[0016] Optionally, the water-cooling assembly includes a water-cooled arc plate, a water supply unit for supplying water to the water-cooled arc plate, and a driving unit for realizing the staggered movement of the water-cooled arc plate and the protective arc plate. The water-cooled arc plate and the protective arc plate are identical and both are adapted to the force-applying member. In the initial position, the water-cooled arc plate and the protective arc plate are located on both sides of the force-applying member, and the water-cooled arc plate is in contact with the peripheral wall of the rotating shaft.

[0017] Optionally, the drive unit includes a drive motor, a lead screw, a slide bar, and two sliders. The lead screw is rotatably mounted on the cooling rack, and the drive motor controls the rotation of the lead screw. The slide bar is fixed on the bracket, and both sliders are helically engaged with the lead screw. The length direction of the lead screw is along the length direction of the rotating shaft. The two sliders are respectively fixedly connected to the protective arc plate and the water-cooled arc plate. Both sliders are fitted and slide on the slide bar, and the speaker controls the operation of the drive motor.

[0018] Optionally, the cooling assembly includes a cooling pipe and a cooling cover disposed within the protective arc plate. The cooling cover is fixed to the top of the cooling pipe by bolts, and ice strips are placed inside the cooling pipe.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] 1. When the rotating shaft needs to be inspected, the first electromagnet corresponding to one of the inspection pieces is de-energized. The inspection piece moves downward under its own weight. Under the gravity of the inspection piece and the replacement plate, the control plate opens and the torsion spring is in a deformed state until the replacement plate moves to the position of the lifting plate. The lifting plate is initially located at the bottom of the inspection frame. At this time, the second electromagnet is energized and the replacement plate is attracted to it, completing the replacement of the inspection piece. Then, the inspection frame is controlled to move downward until it reaches the position of the rotating shaft and abuts.

[0021] 2. Control the rotation of the shaft without applying radial force. If there is a protrusion on the shaft and it damages the detection plate, after rotating several times, control the lifting plate to move upward until the replacement plate moves to the position of contact with the first electromagnet. De-energize the second electromagnet and charge the first electromagnet. The first electromagnet attracts the replacement plate, the control plate closes, and the corresponding light source is turned on. If the corresponding light sensor detects the light from the light source, the buzzer sounds an alarm. This indicates that there is a protrusion on the shaft and the protrusion needs to be dealt with. If the light sensor does not detect the light source, then there is no protrusion on the shaft.

[0022] 3. When it is necessary to check whether the shaft is overheating, first insert an ice bar into the cooling tube to cool the lubricating oil. Open the solenoid valve at the oil chamber opening, and the lubricating oil drips from the oil chamber onto the adsorption component. Then close the solenoid valve and observe the electric push rod squeezing the adsorption component. The lubricating oil adsorbed on the adsorption component drips onto the peripheral wall of the shaft. If the shaft is overheating, the cold lubricating oil will make a hissing sound when it comes into contact with the shaft. This can be used to alert the staff through a loudspeaker. In addition, the lubricating oil can also lubricate the shaft and the force-applying component, thereby reducing the overheating effect of the shaft. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the detection mechanism and cooling mechanism in the embodiments of this application;

[0025] Figure 3 This is a schematic diagram of the detection chip and replacement components in the embodiments of this application;

[0026] Figure 4 yes Figure 2 An enlarged schematic diagram of part A in the middle;

[0027] Figure 5 This is a schematic diagram of the testing frame, testing sheet, and marking component in an embodiment of this application.

[0028] Reference numerals: 1. Frame; 2. Servo motor; 3. Rotating shaft; 4. Torque sensor; 5. Bracket; 6. Force-applying cylinder; 7. Hydraulic cylinder; 8. Force-applying component; 9. Hydraulic press; 10. Housing; 11. Mounting plate; 12. Pressure plate; 13. Detection frame; 14. Detection plate; 15. Control board; 16. Torsion spring; 17. Light source; 18. Light sensor; 19. Replacement board; 20. Lifting plate; 21. First electromagnet; 22. Second electromagnet 23. Magnet; 24. Replacement slot; 25. Cooling rack; 26. Protective arc plate; 27. Oil chamber; 28. Adsorption component; 29. ​​Adsorption plate; 30. Inspection electric actuator; 31. Clearance slot; 32. Amplifier; 33. Mounting hole; 34. Water-cooled arc plate; 35. Water supply tank; 36. Water pipe; 37. Water pump; 38. Drive motor; 39. Lead screw; 40. Sliding rod; 41. Sliding block; 42. Cooling pipe; 43. Cooling cover; 44. Ice bar. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0030] This application discloses a torque detection device for a blower bearing. (Refer to...) Figures 1-5 A torque detection device for a blower bearing includes a frame 1, a servo motor 2, a rotating shaft 3 connected to the output end of the servo motor 2, a torque sensor 4 mounted on the rotating shaft 3, a circumferential load device, and a radial load device. The axial load device includes a hydraulic press 9, a housing 10, a mounting plate 11, and a pressure plate 12. The servo motor 2 is connected to one end of the rotating shaft 3 via a coupling. The end of the housing 10 away from the servo motor 2 is open. The mounting plate 11 has an operating hole adapted to the bearing, and one end of the bearing is located outside the operating hole. The housing 10 also has a through hole adapted to the rotating shaft 3. First, the bearing is placed inside the housing 10 and restrained by the mounting plate 11. Then... The rotating shaft 3 is connected to the bearing, and pressure is applied to the pressure plate 12 by the hydraulic press 9, thereby achieving the effect of applying axial force to the bearing. The radial load device includes a bracket 5 set on the frame 1, a force-applying mechanism for applying radial force, a detection mechanism for detecting whether there are protrusions on the shaft, and a cooling mechanism for cooling the rotating shaft 3. The force-applying mechanism includes a force-applying cylinder 6, a hydraulic cylinder 7, and a force-applying component 8 set on the frame 1. The force-applying component 8 is slidably set in the force-applying cylinder 6 and the movement direction of the force-applying component 8 is along the radial direction of the rotating shaft 3. The force-applying component 8 is set in an arc shape and adapted to the rotating shaft 3. The force-applying mechanism also includes a force sensor set between the hydraulic cylinder 7 and the force-applying component 8 for monitoring the radial load force.

[0031] The hydraulic cylinder 7 is connected to a feed controller via wires, and the feed controller communicates with a computer, cloud server, or monitoring system. The servo motor 2, hydraulic press 9, torque sensor 4, and force sensor are all equipped with communication modules, which communicate with the computer, cloud server, or monitoring system. The servo motor 2 is connected to a motor controller via wires, and the motor controller communicates with the computer, cloud server, or monitoring system. The computer, cloud server, or monitoring system is equipped with an alarm system, a power supply system, and data recording and analysis software. The data recording and analysis software in the system can collect, store, and analyze various data in real time, including the operating data of the hydraulic press 9, the readings of the force sensor, and the operating data of the servo motor 2. It can promptly cut off power when the torque exceeds the range, and also facilitates the operation process. This not only helps operators better understand the operating status of the equipment but also provides possibilities for further production optimization. Furthermore, the torque measurement method adopts existing measurement methods, which will not be elaborated further in this embodiment.

[0032] The testing mechanism includes a testing frame 13 that is lifted and mounted on a support 5, multiple testing pieces 14 that are movably mounted on the testing frame 13, an marking component for indicating that the testing pieces 14 are damaged, and a replacement component for replacing the testing pieces 14. The testing pieces 14 are damaged when they are in contact with the outer wall of the rotating shaft 3 and there is a protrusion on the rotating shaft 3. The bottom of the testing frame 13 is open and the other end is closed. The testing pieces 14 are made of cardboard. In this embodiment, it is only necessary to ensure that when the bottom end of the testing piece 14 abuts against the peripheral wall of the rotating shaft 3, if there is a protrusion on the rotating shaft 3, the testing piece 14 will be punctured or damaged. In addition, in this embodiment, it is only necessary to test the contact part between the force-applying member 8 and the rotating shaft 3. The distribution direction of the multiple testing pieces 14 is along the movement direction of the force-applying member 8. The lifting and lowering of the testing frame 13 is achieved by an electric push rod.

[0033] The marking assembly includes a control unit for controlling the closing / opening of the bottom of the detection frame 13, a light source 17, a light sensor 18, and a buzzer electrically connected to the light sensor 18. Multiple sets of light sources 17 and light sensors 18 are configured and located on opposite sides of the corresponding detection piece 14. The light sensor 18 and the buzzer are connected via a PLC controller. The control unit includes a control board 15 and a torsion spring 16. One side of the control board 15 is hinged to one side of the opening of the detection frame 13. The torsion spring 16 connects the control board 15 and the detection frame 13. When the detection piece 14 moves out of the detection frame 13, the control board 15 unfolds outwards, and the detection piece 14 moves... When the detection plate 14 enters the detection frame 13, the control plate 15 closes the detection frame 13. In the initial state, when the torsion spring 16 is in its natural state, the control plate 15 closes the bottom of the detection frame 13 to prevent external light from affecting the normal recognition of the light source 17 by the light sensor 18. When the detection plate 14 falls downward, due to the weight of the detection plate 14, the control plate 15 opens outward and is tilted. That is, under the elastic force of the torsion spring 16, the movable side of the control plate 15 abuts against the side wall of the detection plate 14. When the detection plate 14 moves into the detection frame 13, the control plate 15 closes the bottom of the detection frame 13.

[0034] The replacement assembly includes a replacement plate 19, a lifting plate 20 that is lifted and lowered within the testing frame 13, a first electromagnet 21, and a second electromagnet 22. The replacement plate 19 is fixed to the top of the testing piece 14. Replacement slots 23 are provided on both sides of the testing piece 14 along its length. The two ends of the replacement plate 19 slide within the two replacement slots 23 respectively. The width of the opening of the testing frame 13 matches the length of the testing piece 14. The two ends of the replacement plate 19 are respectively placed on the bottom inner wall of the testing frame 13. The first electromagnet 21 is fixed to the top of the testing frame 13, and the second electromagnet 22 is fixed to the lifting plate 20. The movement of the lifting plate 20 is staggered from the movement path of the replacement plate 19. In this embodiment, the lifting plate 20 is located on either side of the testing frame 13. The first electromagnet 21 and the second electromagnet 22... Multiple electromagnets 22 are configured, and each detection piece 14 corresponds to the first electromagnet 21 and the second electromagnet 22 respectively. Another purpose of the replacement plate 19 is to increase the weight of the detection piece 14, thereby further ensuring the smooth opening of the control plate 15. In the initial state, the replacement plate 19 is located at the top of the detection box, the first electromagnet 21 attracts the replacement plate 19, and the corresponding detection piece 14 is located inside the detection box. When the detection piece 14 falls to the lowest part of the detection frame 13, the second electromagnet 22 attracts the replacement plate 19 to prevent the detection piece 14 from shifting its position during movement. The length of the replacement plate 19 is greater than the length of the detection piece 14. Therefore, the two ends of the replacement plate 19 move within the replacement groove 23 to limit the movement direction of the detection piece 14.

[0035] When the rotating shaft 3 needs to be inspected, the first electromagnet 21 corresponding to one of the inspection pieces 14 is de-energized. The inspection piece 14 moves downward under its own weight. Under the gravity of the inspection piece 14 and the replacement plate 19, the control plate 15 is opened and the torsion spring 16 is in a deformed state until the replacement plate 19 moves to the position of the lifting plate 20. The lifting plate 20 is initially located at the bottom of the inspection frame 13. At this time, the second electromagnet 22 is energized and the replacement plate 19 is attracted, completing the replacement of the inspection piece 14. Then, the control inspection frame 13 moves downward until it reaches the position of the rotating shaft 3 and abuts. Therefore, in this embodiment, it is necessary to set that multiple inspection pieces 14 fall with the inspection frame 13. During the process, the rotating shaft 3 is in contact with the peripheral wall of the rotating shaft 3. At this time, the rotating shaft 3 is controlled to rotate without applying radial force. If there is a protrusion in the rotating shaft 3 and it damages the detection plate 14, after rotating several times, the lifting plate 20 is controlled to move upward until the replacement plate 19 moves to the position of contacting the first electromagnet 21. The second electromagnet 22 is de-energized and the first electromagnet 21 is charged. The first electromagnet 21 attracts the replacement plate 19, the control plate 15 is closed, and the corresponding light source 17 is turned on. If the corresponding light sensor 18 detects the light from the light source 17, the buzzer sounds an alarm. At this time, it is proven that there is a protrusion in the rotating shaft 3 and the protrusion needs to be dealt with. If the light sensor 18 does not detect the light source 17, then there is no protrusion in the rotating shaft 3.

[0036] During the application of radial force to the rotating shaft 3 and axial force to the bearing, the rotating shaft 3 is in rigid contact with the force-applying component 8, which can easily cause the rotating shaft 3 to overheat. In order to promptly determine whether the rotating shaft 3 is overheating and to cool the overheated rotating shaft 3, the cooling mechanism includes a cooling rack 24 mounted on the frame 1, a protective arc plate 25 slidably mounted on the cooling rack 24, a viewing component for detecting whether the rotating shaft 3 is overheating, and a water-cooling component for water cooling the rotating shaft 3. The protective arc plate 25 moves along the length of the rotating shaft 3. The protective arc plate 25 and the force-applying component 8 form a protective cavity to protect the rotating shaft 3. In this embodiment, the protective arc plate 25 and the force-applying component 8 can be set such that the force-applying component 8 is a quarter-circle arc and the protective arc plate 25 is a three-quarter-circle arc. Therefore, the protective arc and the force-applying component 8 protect the corresponding position of the rotating shaft 3 to prevent other impurities from adhering to the rotating shaft 3 and affecting the normal operation of the torque detection.

[0037] The inspection component is used to determine whether the shaft 3 is overheating, while the water-cooling component cools the shaft 3 with water. The inspection component includes an oil chamber 26, an adsorption element 27, an adsorption plate 28, an electric actuator 29 that enables the adsorption plate 28 to reciprocate, and a judgment part for determining whether the shaft 3 makes a sound when it encounters lubricating oil. The protective arc plate 25 has a relief groove 30 below the oil chamber 26 for the adsorption plate 28 to slide. One end of the adsorption element 27 is fixedly connected to one end of the relief groove 30, and the other end is fixedly connected to the adsorption plate 28. The opening of the oil chamber 26 communicates with the relief groove 30 and the adsorption element... 27 is located below the opening of the oil cavity 26. A solenoid valve is installed at the opening of the oil cavity 26. The adsorption component 27 will not contact the rotating shaft 3, and part of the clearance groove 30 will not contact the rotating shaft 3. The oil cavity 26 is filled with lubricating oil. In this embodiment, the adsorption component 27 is a sponge. The reason for not allowing the lubricating oil to drip directly in this embodiment is that it may cause excessive lubricating oil in some parts of the rotating shaft 3, resulting in waste of lubricating oil. Also, if too much lubricating oil drips, the hissing sound will not be obvious enough. As the adsorption component 27 is squeezed, the lubricating oil gradually drips down, continuously producing a hissing sound, which is easier to identify.

[0038] The judgment unit includes a loudspeaker 31 and a cooling assembly for cooling the lubricating oil in the oil chamber 26. The protective arc plate 25 is provided with a mounting hole 32. The loudspeaker 31 is installed in the mounting hole 32. The loudspeaker 31 includes a speaker, a power amplifier and a microphone, which can greatly amplify the sound and make it easier for staff to identify. That is, it can amplify the hissing sound made when the cold lubricating oil comes into contact with the rotating shaft 3. The cooling assembly includes a cooling pipe 41 and a cooling cover 42 installed in the protective arc plate 25. The cooling cover 42 is fixed to the top of the cooling pipe 41 by bolts. An ice bar 43 is placed in the cooling pipe 41. The cooling pipe 41 extends into the oil chamber 26. After the ice bar 43 is inserted into the cooling assembly, the temperature of the lubricating oil can be greatly reduced. As the low-temperature lubricating oil drips onto the rotating shaft 3, the hissing sound effect can be amplified. Of course, the performance of the lubricating oil will not be reduced due to heat transfer between it and the ice bar 43.

[0039] When it is necessary to detect whether the rotating shaft 3 is overheating, first insert the ice bar 43 into the cooling tube 41 to cool the lubricating oil. Then open the solenoid valve at the opening of the oil chamber 26, and the lubricating oil drips from the oil chamber 26 onto the adsorption component 27. After closing the solenoid valve, press the adsorption component 27 by observing the electric push rod 29. The lubricating oil adsorbed on the adsorption component 27 drips onto the peripheral wall of the rotating shaft 3. If the rotating shaft 3 is overheating, the cold lubricating oil will make a hissing sound after contacting the rotating shaft 3. The loudspeaker 31 can be used to warn the staff. In addition, the lubricating oil can also lubricate the rotating shaft 3 and the force-applying component 8, thereby reducing the overheating effect of the rotating shaft 3.

[0040] The water-cooled assembly includes a water-cooled arc plate 33, a water supply unit for supplying water to the water-cooled arc plate 33, and a drive unit for achieving the staggered movement of the water-cooled arc plate 33 and the protective arc plate 25. The water-cooled arc plate 33 and the protective arc plate 25 are identical and both are adapted to the force-applying member 8. In the initial position, the water-cooled arc plate 33 and the protective arc plate 25 are located on both sides of the force-applying member 8. The water-cooled arc plate 33 is in contact with the peripheral wall of the rotating shaft 3. After the protective arc plate 25 completes the inspection of the rotating shaft 3, the water-cooled arc plate 33 needs to cool the peripheral wall of the rotating shaft 3. The water-cooled arc plate 33 transfers heat to the rotating shaft 3 through the water supply unit. The water supply unit includes a water tank 34, a water pipe 35, and a water pump 36. The water tank 34 is located in the external environment, the water pipe 35 is connected to the water-cooled arc plate 33, and the water pump 36 is located inside the water tank 34. In addition, the water tank is located below the water-cooled arc plate 33 to facilitate water circulation.

[0041] The drive unit includes a drive motor 37, a lead screw 38, a slide bar 39, and two sliders 40. The lead screw 38 is rotatably mounted on the cooling rack 24. The drive motor 37 controls the rotation of the lead screw 38. The slide bar 39 is fixed on the bracket 5. The two sliders 40 are screw-fitted with the lead screw 38. The length of the lead screw 38 is along the length of the rotating shaft 3. The two sliders 40 are fixedly connected to the protective arc plate 25 and the water-cooled arc plate 33, respectively. The two sliders 40 are fitted and slide on the slide bar 39. The speaker controls the operation of the drive motor 37. When water cooling is required, the drive motor 37 controls the lead screw 38 to rotate in the opposite direction. The protective arc plate 25 moves away from the force-applying member 8 until the water-cooled arc plate 33 moves to a position that matches the force-applying member 8. Similarly, the water-cooled arc plate 33 also protects the corresponding position of the rotating shaft 3. Furthermore, the water circulation in the water-cooled arc plate 33 achieves the effect of water cooling the rotating shaft 3.

[0042] The implementation principle of the torque detection device for a blower bearing in this embodiment is as follows: When it is necessary to detect the rotating shaft 3, the first electromagnet 21 corresponding to one of the detection plates 14 is de-energized. The detection plate 14 moves downward under its own weight. Under the gravity of the detection plate 14 and the replacement plate 19, the control plate 15 is opened and the torsion spring 16 is in a deformed state until the replacement plate 19 moves to the position of the lifting plate 20. The lifting plate 20 is initially located at the bottom of the detection frame 13. At this time, the second electromagnet 22 is energized and the replacement plate 19 is attracted, completing the replacement of the detection plate 14. Then, the control detection frame 13 moves downward until it reaches the rotating shaft 3. Position contact; at this time, control the rotating shaft 3 to rotate without applying radial force to the rotating shaft 3. If the rotating shaft 3 has a protrusion and causes damage to the detection plate 14, after rotating several times, control the lifting plate 20 to move upward until the replacement plate 19 moves to the position of contacting the first electromagnet 21. De-energize the second electromagnet 22 and charge the first electromagnet 21. The first electromagnet 21 attracts the replacement plate 19, the control plate 15 is closed, and the corresponding light source 17 is turned on. If the corresponding light sensor 18 detects the light from the light source 17, the buzzer sounds an alarm. At this time, it proves that the rotating shaft 3 has a protrusion and needs to be dealt with. If the light sensor 18 does not detect the light source 17, then the rotating shaft 3 does not have a protrusion.

[0043] When it is necessary to test whether the rotating shaft 3 is overheating, first insert the ice bar 43 into the cooling tube 41 to cool the lubricating oil. Then open the solenoid valve at the opening of the oil chamber 26, and the lubricating oil drips from the oil chamber 26 onto the adsorption component 27. After closing the solenoid valve, press the adsorption component 27 by observing the electric push rod 29. The lubricating oil adsorbed on the adsorption component 27 drips onto the peripheral wall of the rotating shaft 3. If the rotating shaft 3 is overheating, the cold lubricating oil will make a hissing sound after contacting the rotating shaft 3. The loudspeaker 31 can be used to warn the staff. In addition, the lubricating oil can also lubricate the rotating shaft 3 and the force-applying component 8, thereby reducing the overheating effect of the rotating shaft 3. When water cooling is required, the drive motor 37 controls the lead screw 38 to rotate in the opposite direction, and the protective arc plate 25 moves away from the force-applying component 8 until the water-cooled arc plate 33 moves to a position that matches the force-applying component 8. Similarly, the water-cooled arc plate 33 also protects the corresponding position of the rotating shaft 3. Secondly, the water circulation in the water-cooled arc plate 33 achieves the effect of water cooling the rotating shaft 3.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A torque detection device for a blower bearing, characterized in that: It includes a frame (1), a servo motor (2), a rotating shaft (3) connected to the output end of the servo motor (2), a torque sensor (4) mounted on the rotating shaft (3), an axial load device, and a radial load device; The radial load device includes a bracket (5) mounted on the frame (1), a force-applying mechanism for applying radial force, a detection mechanism for detecting whether there are protrusions on the rotating shaft (3), and a cooling mechanism for cooling the rotating shaft (3); The detection mechanism includes a detection frame (13) that is lifted and mounted on a support (5), a plurality of detection pieces (14) that are movably mounted on the detection frame (13), an identification component for indicating that the detection pieces (14) are damaged, and a replacement component for replacing the detection pieces (14). When the detection piece (14) is in contact with the outer wall of the rotating shaft (3) and there is a protrusion on the rotating shaft (3), the detection piece (14) is damaged. The bottom of the detection frame (13) is open. The marking component includes a control unit for controlling the closing / opening of the bottom of the detection frame (13), a light source (17), a light sensor (18), and a buzzer electrically connected to the light sensor (18). The light source (17) and the light sensor (18) are configured in multiple groups and are respectively located on opposite sides of the detection frame (13). The replacement assembly includes a replacement plate (19), a lifting plate (20) that is lifted and lowered within the testing frame (13), a first electromagnet (21), and a second electromagnet (22). The replacement plate (19) is fixed to the top of the testing piece (14). The testing frame (13) has replacement slots (23) on both sides of the testing piece (14) along its length. The two ends of the replacement plate (19) slide within the two replacement slots (23). The width of the opening of the testing frame (13) is adapted to the length of the testing piece (14). The two ends of the replacement plate (19) are placed on the bottom inner wall of the testing frame (13). The first electromagnet (21) is fixed to the top of the testing frame (13), and the second electromagnet (22) is fixed to the lifting plate (20). Multiple first electromagnets (21) and second electromagnets (22) are provided, and each testing piece (14) corresponds to the first electromagnet (21) and the second electromagnet (22).

2. The torque detection device for a blower bearing according to claim 1, characterized in that: The control unit includes a control plate (15) and a torsion spring (16). One side of the control plate (15) is hinged to one side of the opening of the detection frame (13). The torsion spring (16) is used to connect the control plate (15) and the detection frame (13). When the detection piece (14) moves out of the detection frame (13), the control plate (15) unfolds outward. When the detection piece (14) moves into the detection frame (13), the control plate (15) closes the detection frame (13).

3. The torque detection device for a blower bearing according to claim 1, characterized in that: The force-applying mechanism includes a force-applying cylinder (6), a hydraulic cylinder (7), and a force-applying component (8) disposed on the frame (1). The force-applying component (8) is slidably disposed inside the force-applying cylinder (6) and the movement direction of the force-applying component (8) is along the radial direction of the rotating shaft (3). The force-applying component (8) is arc-shaped and adapted to the rotating shaft (3). The cooling mechanism includes a cooling rack (24) disposed on the frame (1), a protective arc plate (25) slidably disposed on the cooling rack (24), a viewing component for detecting whether the rotating shaft (3) is overheated, and a water-cooling component for water-cooling the rotating shaft (3). The movement direction of the protective arc plate (25) is along the length direction of the rotating shaft (3). The protective arc plate (25) and the force-applying component (8) surround and form a protective cavity for protecting the rotating shaft (3).

4. The torque detection device for a blower bearing according to claim 3, characterized in that: The viewing assembly includes an oil cavity (26), an adsorption element (27), an adsorption plate (28), a viewing electric actuator (29) for reciprocating the adsorption plate (28), and a judgment part for determining whether the rotating shaft (3) makes a sound when it encounters lubricating oil. The protective arc plate (25) is provided with a relief groove (30) for the sliding of the adsorption plate (28) below the oil cavity (26). One end of the adsorption element (27) is fixedly connected to one end of the relief groove (30), and the other end is fixedly connected to the adsorption plate (28). The opening of the oil cavity (26) is connected to the relief groove (30), and the adsorption element (27) is located below the opening of the oil cavity (26). A solenoid valve is provided at the opening of the oil cavity (26), and the adsorption element (27) will not contact the rotating shaft (3).

5. The torque detection device for a blower bearing according to claim 4, characterized in that: The judgment unit includes a loudspeaker (31) and a cooling unit for cooling the lubricating oil in the oil chamber (26). The protective arc plate (25) is provided with a mounting hole (32), and the loudspeaker (31) is disposed in the mounting hole (32).

6. The torque detection device for a blower bearing according to claim 5, characterized in that: The water-cooling assembly includes a water-cooled arc plate (33), a water supply unit for supplying water to the water-cooled arc plate (33), and a drive unit for realizing the staggered movement of the water-cooled arc plate (33) and the protective arc plate (25). The water-cooled arc plate (33) and the protective arc plate (25) are identical and both are adapted to the force-applying member (8). In the initial position, the water-cooled arc plate (33) and the protective arc plate (25) are located on both sides of the force-applying member (8), and the water-cooled arc plate (33) is in contact with the peripheral wall of the rotating shaft (3).

7. The torque detection device for a blower bearing according to claim 6, characterized in that: The drive unit includes a drive motor (37), a lead screw (38), a slide bar (39), and two sliders (40). The lead screw (38) is rotatably mounted on the cooling rack (24). The drive motor (37) controls the rotation of the lead screw (38). The slide bar (39) is fixed on the bracket (5). The two sliders (40) are screwed to the lead screw (38). The length of the lead screw (38) is along the length of the rotating shaft (3). The two sliders (40) are fixedly connected to the protective arc plate (25) and the water-cooled arc plate (33), respectively. The two sliders (40) are fitted and slide on the slide bar (39). The loudspeaker of the megaphone (31) controls the operation of the drive motor (37).

8. The torque detection device for a blower bearing according to claim 7, characterized in that: The cooling assembly includes a cooling pipe (41) and a cooling cover (42) disposed in the protective arc plate (25). The cooling cover (42) is fixed to the top of the cooling pipe (41) by bolts, and ice strips (43) are placed inside the cooling pipe (41).

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