Vibration detection device for bearing

Abstract

The invention relates to the technical field of bearing vibration detection devices, in particular to a vibration detection device for a bearing. The vibration detection device for the bearing comprises a rack, a conveying mechanism, a three-axis driving platform and two symmetrically-arranged electronic dial indicators are installed on the rack, the conveying mechanism is used for batch conveying, preheating and dust removal of to-be-detected bearings, the three-axis driving platform is in transmission connection with a procedure rotary table, and a longitudinal detection seat is installed on the inner wall of the procedure rotary table in a sliding mode. The beneficial effects of the invention are that the to-be-detected bearing can move in multiple directions before detection through the vibration rotation motion of the to-be-detected bearing before detection, and the outer ring, the steel ball and the inner ring of the to-be-detected bearing can be fully vibrated and loosened; impurities in the to-be-detected bearing can be quickly shaken off, and condensed grease in the to-be-detected bearing can be fully softened, so that the influence of grease condensation and impurity adhesion on the vibration detection precision of the to-be-detected bearing is eliminated.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing vibration detection devices, in particular to a vibration detection device for a bearing. Background Art

[0002] Bearings are mainly used to support mechanical rotating bodies to work and are an important component in mechanical equipment. The installation of bearings can reduce friction during the operation of mechanical equipment, reduce component wear and save energy. After the production of bearings, they need to be tested before they can be sold. One of the links is to perform vibration tests on the bearings through bearing vibration detection equipment. By judging whether the vibration energy value of the bearing is within the normal range, it can be determined whether the bearing is running smoothly and whether the bearing has other quality problems.

[0003] In the prior art, a patent document with publication number CN117309400B discloses a bearing vibration detection device, including a workbench and a plurality of legs fixedly mounted on the bottom surface of the workbench, a controller is fixedly mounted on the workbench, a power component is fixedly mounted on the surface of the workbench, and a detection component is slidably mounted on the power component.

[0004] The above-mentioned equipment does not need to disassemble the rotating shaft and replace it with a rotating shaft that matches the inner ring diameter of the bearing. By adjusting the diameter of the diameter adjusting component, vibration detection of bearings with different inner ring sizes can be achieved. The staff does not need to replace the rotating shaft, which saves manpower. At the same time, the equipment is highly practical. However, when the above-mentioned detection equipment is used for bearing detection, on the one hand, it is not convenient to quickly shake off the impurities in the bearing to be inspected and to fully soften the condensed grease in the bearing to be inspected, thereby eliminating the influence of grease condensation and impurity adhesion on the vibration detection accuracy of the bearing to be inspected. On the other hand, it is not convenient to simultaneously realize axial vibration detection and longitudinal vibration detection of the bearing to be inspected during detection, and the existing detection device is not convenient for integrated detection of the smoothness and flexibility of the bearing during detection. Based on this, the present invention provides a vibration detection device for bearings to solve the problems raised in the above-mentioned background technology. Summary of the invention

[0005] The present invention aims at the technical problems existing in the prior art and provides a vibration detection device for bearings to solve the problems that, when the existing detection equipment is performing bearing detection, on the one hand, it is not convenient to quickly shake off the impurities in the bearing to be detected and to fully soften the condensed grease in the bearing to be detected, thereby eliminating the influence of grease condensation and impurity adhesion on the vibration detection accuracy of the bearing to be detected; on the other hand, it is not convenient to simultaneously realize axial vibration detection and longitudinal vibration detection of the bearing to be detected during detection, and the existing detection device is not convenient to realize the smoothness and flexibility detection of the bearing in an integrated manner during detection.

[0006] The technical solution of the present invention to solve the above technical problems is as follows: a vibration detection device for bearings, comprising a frame, on which a conveying mechanism, a three-axis driving platform and two symmetrically arranged electronic micrometers are respectively installed, the conveying mechanism is used for batch conveying, preheating and dust removal of bearings to be inspected, the three-axis driving platform is transmission-connected to a process turntable, a longitudinal inspection seat is slidably installed on the inner wall of the process turntable, both sides of the longitudinal inspection seat are installed with a first spring limited by the process turntable, the inner wall of the longitudinal inspection seat is rotationally connected to a fixed shaft, and a transmission sleeve is arranged on the fixed shaft There is a rotary clamp shaft, a pneumatic clamping module is installed on the rotary clamp shaft, a shaft inspection plate is rotatably sleeved on the rotary clamp shaft, a T-shaped guide rod is installed on the surface of the shaft inspection plate, the T-shaped guide rod is slidably connected with the longitudinal inspection seat, a second spring is sleeved on the fixed shaft and corresponds to the position between the shaft inspection plate and the longitudinal inspection seat, a distance measuring probe and a vibration sensor are installed on the longitudinal inspection seat and the shaft inspection plate, and a driving module that cooperates with the fixed shaft transmission, a vibration generating component that drives the longitudinal inspection seat to vibrate reciprocatingly, and a rotation detection component that performs rotation detection on the bearing to be inspected are respectively installed on the three-axis driving platform.

[0007] Based on the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the conveying mechanism includes a transmission module, which is transmission-connected to an annular conveyor belt, a group of bearing placement areas distributed in sequence are provided on the annular conveyor belt, and four regularly distributed positioning clamps are installed on each of the bearing placement areas. A group of electric heating rollers distributed in a linear array are rotatably installed between the inner surfaces of the frame and corresponding to the inner side of the annular conveyor belt, a dust suction seat is installed on the frame and at a position corresponding to the top of the annular conveyor belt, a group of regularly distributed dust suction holes are opened on the dust suction seat and at a position relative to the annular conveyor belt, a negative pressure vacuum cleaner is installed on the surface of the dust suction seat, and the negative pressure dust suction end of the negative pressure vacuum cleaner is connected to the inner cavity of the dust suction seat.

[0009] The beneficial effect of adopting the above further scheme is that when the bearing to be inspected is conveyed, the bearing to be inspected is placed one by one in each bearing placement area. After the bearing to be inspected is placed in the bearing placement area, the four positioning clamping rods on the bearing placement area are set to effectively position the bearing to be inspected on the bearing placement area. Through positioning, it is convenient for the pneumatic clamping module to accurately position and clamp the bearing to be inspected. When the bearing to be inspected is conveyed, the electric heating roller heats the bearing to be inspected with a set power. Through heating, the grease condensed inside the bearing to be inspected is fully softened, thereby avoiding the adhesion phenomenon between the outer ring and the inner ring of the bearing to be inspected due to the solidification of the grease. By reducing the adhesion phenomenon, it is convenient to improve the detection accuracy of the vibration detection device;

[0010] At the same time, when the bearing to be inspected is conveyed, the dust suction seat is set to remove impurities on the outer surface of the bearing to be inspected by a certain negative pressure. The negative pressure impurity reduction effect is achieved to improve the surface cleanliness of the inner and outer rings of the bearing to be inspected, thereby reducing the detection error of the detection device caused by impurities on the surface of the bearing to be inspected.

[0011] Furthermore, it also includes a single-chip microcomputer installed on the frame, the data ends of the distance measuring probe, vibration sensor and electronic micrometer are all connected to the single-chip microcomputer data, the two distance measuring probes are arranged perpendicular to each other, and a waste storage box with a top opening is clamped on the frame.

[0012] The beneficial effect of adopting the above further scheme is that when the inspection result of the bearing to be inspected is unqualified, under the action of the pneumatic clamping module and the three-axis drive platform, the unqualified bearing to be inspected is finally placed in a waste storage box for storage, so as to realize the classified transportation and classified collection of good bearings and non-good bearings by the present inspection device.

[0013] Furthermore, the three-axis drive platform includes a carrier, the carrier is slidably connected to the frame, a group of electric push rods are installed between the carrier and the frame, a screw lifting module is installed on the carrier, a lifting platform is transmission-installed on the screw lifting module, the lifting platform is slidably connected to the carrier, a rotary arm driven by a rotating motor is rotatably installed on the lifting platform, a linear drive module is installed on the rotary arm, the linear drive module is transmission-connected to the process turntable, and the process turntable is slidably connected to the rotary arm.

[0014] The beneficial effect of adopting the above further solution is that, when in use, the process turntable can be moved in three axes by setting the three-axis driving platform.

[0015] Furthermore, the driving module includes a guide shaft rotatably connected between the inner surfaces of the swing arm, a servo motor is installed on the swing arm, the output shaft end of the servo motor is fixedly connected to the guide shaft, a hollow shaft is rotatably installed on the longitudinal inspection seat, a hollow groove with openings at both ends fixedly opened inside the hollow shaft and slidably connected to the guide shaft, the cross-sections of the hollow groove and the guide shaft are both regular polygons, and first bevel gears are installed on the hollow shaft and the fixed shaft, and the two first bevel gears are meshed with each other.

[0016] The beneficial effect of adopting the above further scheme is that when the bearing to be inspected is tested, the pneumatic clamping module clamps the bearing to be inspected from the circular conveyor belt. After the bearing to be inspected is picked up, the bearing to be inspected is set vertically. Under the action of the linear drive module, the driven rod and the vibration cam are fully fitted. After the driven rod and the vibration cam are fitted, the vibration cam rotates at a set speed. After the vibration cam rotates, it is set in coordination with the first limit spring, so that the longitudinal inspection seat and the bearing to be inspected on the longitudinal inspection seat can vibrate at a set frequency, and the longitudinal inspection seat vibrates to generate The bearing to be inspected can rotate at a set speed at the same time. The oscillating motion of the bearing before inspection can make the bearing to be inspected perform multi-directional movements before inspection and make the outer ring, steel balls and inner ring of the bearing to be inspected fully vibrate and loosen, and make the impurities in the bearing to be inspected quickly shake off and make the condensed grease in the bearing to be inspected fully soften, thereby eliminating the influence of grease condensation and impurity adhesion on the vibration detection accuracy of the bearing to be inspected. At the same time, the structural defects of the bearing to be inspected can be fully exposed during the inspection through the vibration addition before the inspection.

[0017] By setting the guide shaft, the guide shaft can continuously drive the fixed shaft when the longitudinal inspection seat moves;

[0018] Furthermore, an axis groove with an opening at the rear end and slidably connected to the fixed axis is fixedly provided inside the rotary clamp shaft, the cross sections of the axis groove and the fixed axis are both regular polygons, and the axis of the fixed axis is perpendicular to the axis of the guide shaft.

[0019] Furthermore, the vibration generating component includes an active shaft and a passive shaft rotatably connected to the swing arm, the output shaft end of the servo motor is connected to the active shaft through a belt, second bevel gears are installed on the active shaft and the passive shaft, the two second bevel gears are meshed with each other, a vibration cam is installed on the passive shaft, and a driven rod is rotatably installed on the longitudinal inspection seat, and the height of the driven rod is 1.5 times to 3 times the thickness of the vibration cam.

[0020] Furthermore, the pneumatic clamping module includes an air pump installed on the longitudinal inspection seat, an air guide channel opened in the fixed axis, and an air cavity opened on the rotary clamp axis. The air guide channel is connected to the air cavity, and the ventilation port of the air pump is rotatably connected to the air guide channel through a ventilation pipe. An air pressure probe is installed on the ventilation pipe, and the data end of the air pressure probe is connected to the data of the single-chip microcomputer. A group of capsule clamp strips are installed on the rotary clamp axis, and the inner cavity of each capsule clamp strip is connected to the air cavity.

[0021] The beneficial effect of adopting the above further solution is that when it is necessary to pick up and clamp the bearing to be inspected, the interior of the bag clamp strip is fully inflated until the value of the air pressure probe reaches the set value.

[0022] Furthermore, the rotation detection component includes a friction plate, a positioning guide rod slidably connected to the friction plate is installed on the swing arm, a pressure sensor is installed between the friction plate and the swing arm, the data end of the pressure sensor is connected to the microcontroller data, and the bottom surface of the friction plate is evenly distributed with rubber friction strips.

[0023] The beneficial effect of adopting the above-mentioned further scheme is that when it is necessary to test the rotational resistance of the bearing to be inspected, under the action of the three-axis drive platform, the bearing to be inspected is fitted with the friction plate, and then the linear drive module drives the bearing to be inspected to move along the direction of the friction plate. When the bearing to be inspected moves along the direction of the friction plate, the outer ring of the bearing to be inspected rotates, and by detecting the data feedback of the pressure sensor, the smoothness and resistance of the outer ring of the bearing to be inspected during rotation can be quickly measured, and then the rotation flexibility and rotation smoothness of the bearing to be inspected can be measured.

[0024] Furthermore, the two electronic micrometers are respectively arranged on both sides of the rotary arm;

[0025] The beneficial effect of adopting the above further scheme is that when it is necessary to detect the roundness or flatness of the two side surfaces of the bearing to be inspected and the outer ring surface of the bearing to be inspected, by setting the three-axis drive platform and the rotation angle of the swing arm, the electronic micrometer can perform roundness detection on the two side surfaces of the bearing to be inspected and the outer ring surface of the bearing to be inspected in sequence;

[0026] During bearing vibration detection, the process turntable moves to the middle of the swing arm, and the longitudinal inspection seat can be in a free moving state. During vibration detection, the bearing to be inspected rotates at a set speed. When the bearing to be inspected rotates, the data feedback from Jince's two distance measuring probes and the data feedback from two vibration sensors can quickly measure the axial vibration amplitude and longitudinal vibration amplitude of the bearing to be inspected during operation.

[0027] The beneficial effects of the present invention are:

[0028] 1. In the present invention, when the bearing to be inspected is tested, the pneumatic clamping module clamps the bearing to be inspected from the circular conveyor belt. After the bearing to be inspected is picked up, the bearing to be inspected is set vertically. Under the action of the linear drive module, the driven rod is fully fitted with the vibration cam. After the driven rod is fitted with the vibration cam, the vibration cam rotates at a set speed. After the vibration cam rotates, it is set in cooperation with the first limit spring, so that the longitudinal inspection seat and the bearing to be inspected on the longitudinal inspection seat can vibrate at a set frequency. When the longitudinal inspection seat vibrates, the bearing to be inspected The bearing can also rotate at a set speed, and the oscillating motion of the bearing to be inspected before detection occurs, so that the bearing to be inspected can perform multi-directional movements before detection and the outer ring, steel balls and inner ring of the bearing to be inspected can be fully vibrated and loosened, and the impurities in the bearing to be inspected can be quickly shaken off and the condensed grease in the bearing to be inspected can be fully softened, thereby eliminating the influence of grease condensation and impurity adhesion on the vibration detection accuracy of the bearing to be inspected. At the same time, through the vibration addition before detection, the structural defects of the bearing to be inspected can be fully exposed during detection.

[0029] 2. In the present invention, during the bearing vibration detection, the process turntable moves to the middle of the swing arm, and the longitudinal inspection seat can be in a free moving state. During the vibration detection, the bearing to be inspected rotates at a set speed. When the bearing to be inspected rotates, the data feedback from the two distance measuring probes of Jince and the data feedback from the two vibration sensors can quickly measure the axial vibration amplitude and longitudinal vibration amplitude of the bearing to be inspected during operation.

[0030] 3. In the present invention, when it is necessary to detect the rotational resistance of the bearing to be inspected, under the action of the three-axis drive platform, the bearing to be inspected is fitted with the friction plate, and then the linear drive module drives the bearing to be inspected to move along the direction of the friction plate. When the bearing to be inspected moves along the direction of the friction plate, the outer ring of the bearing to be inspected rotates. By detecting the data feedback of the pressure sensor, the smoothness and resistance of the outer ring of the bearing to be inspected during rotation can be quickly measured, and then the rotation flexibility and rotation smoothness of the bearing to be inspected can be measured.

[0031] 4. In the present invention, when the bearing to be inspected is conveyed, the bearing to be inspected is placed one by one in each bearing placement area. After the bearing to be inspected is placed in the bearing placement area, the four positioning clamping rods on the bearing placement area are set to effectively position the bearing to be inspected on the bearing placement area. Through positioning, it is convenient for the pneumatic clamping module to accurately position and clamp the bearing to be inspected. When the bearing to be inspected is conveyed, the electric heating roller heats the bearing to be inspected with a set power. Through heating, the grease condensed inside the bearing to be inspected is fully softened, thereby avoiding the adhesion phenomenon between the outer ring and the inner ring of the bearing to be inspected due to the solidification of the grease. By reducing the adhesion phenomenon, it is convenient to improve the detection accuracy of the vibration detection device. At the same time, when the bearing to be inspected is conveyed, the dust suction seat is set to remove impurities on the outer surface of the bearing to be inspected by a certain negative pressure. The negative pressure impurity reduction effect is achieved to improve the surface cleanliness of the inner ring and the outer ring of the bearing to be inspected, thereby reducing the detection error of the detection device caused by impurities on the surface of the bearing to be inspected. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the vibration detection device for bearings of the present invention;

[0033] Figure 2 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0034] Figure 3 For the present invention Figure 1 A schematic diagram of the local enlarged structure at B in the middle;

[0035] Figure 4 It is a structural schematic diagram of the friction plate and the electronic micrometer of the present invention;

[0036] Figure 5 For the present invention Figure 4 A schematic diagram of the local enlarged structure at C in the middle;

[0037] Figure 6 It is a schematic diagram of the structure of the friction plate and the pressure sensor of the present invention;

[0038] Figure 7 It is a schematic structural diagram of the first spring and the air pressure probe of the present invention;

[0039] Figure 8 For the present invention Figure 7 A schematic diagram of the structure from another perspective;

[0040] Fig. 9 For the present invention Figure 8 A schematic diagram of the local enlarged structure at D in the middle;

[0041] Fig.10 It is a schematic cross-sectional structure diagram of the second spring and the process turntable of the present invention.

[0042] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0043] 1. Frame; 2. Electronic micrometer; 3. Bearing to be inspected; 4. Process turntable; 5. Longitudinal inspection seat; 6. First spring; 7. Fixed shaft; 8. Clamp shaft; 9. Shaft inspection plate; 10. Second spring; 11. Distance measuring probe; 12. Vibration sensor; 13. Transmission module; 14. Annular conveyor belt; 15. Positioning lever; 16. Electric heating roller; 17. Dust suction seat; 18. Negative pressure vacuum cleaner; 19. Single chip microcomputer; 20. Waste Storage box; 21. Carrier; 22. Electric push rod; 23. Screw lifting module; 24. Lifting platform; 25. Swivel arm; 26. Linear drive module; 27. Guide shaft; 28. Hollow shaft; 29. ​​Servo motor; 30. Active shaft; 31. Passive shaft; 32. Vibration cam; 33. Follower rod; 34. Air pump; 35. Air pressure probe; 36. Bag clamp strip; 37. Friction plate; 38. Pressure sensor; 39. T-shaped guide rod. DETAILED DESCRIPTION

[0044] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0045] The present invention provides the following preferred embodiments

[0046] like Figure 1-10 As shown, a vibration detection device for bearings includes a frame 1, on which a conveying mechanism, a three-axis driving platform and two symmetrically arranged electronic micrometers 2 are respectively installed, and the conveying mechanism is used for batch conveying, preheating and dust removal of bearings 3 to be inspected;

[0047] The conveying mechanism includes a transmission module 13, which is transmission-connected to an annular conveyor belt 14. A group of bearing placement areas distributed in sequence are provided on the annular conveyor belt 14, and four regularly distributed positioning clamping rods 15 are installed on each bearing placement area. A group of electric heating rollers 16 distributed in a linear array are rotatably installed between the inner surfaces of the frame 1 and corresponding to the inner side of the annular conveyor belt 14. A dust suction seat 17 is installed on the frame 1 and at a position corresponding to the top of the annular conveyor belt 14. A group of regularly distributed dust suction holes are opened on the dust suction seat 17 and at a position relative to the annular conveyor belt 14. A negative pressure vacuum cleaner 18 is installed on the surface of the dust suction seat 17, and the negative pressure dust suction end of the negative pressure vacuum cleaner 18 is connected to the inner cavity of the dust suction seat 17.

[0048] When the bearing 3 to be inspected is conveyed, the bearing 3 to be inspected is placed one by one in each bearing placement area. After the bearing 3 to be inspected is placed in the bearing placement area, the four positioning clamping rods 15 on the bearing placement area are set to effectively position the bearing 3 to be inspected on the bearing placement area. Through positioning, it is convenient for the pneumatic clamping module to accurately position and clamp the bearing 3 to be inspected. When the bearing 3 to be inspected is conveyed, the electric heating roller 16 heats the bearing 3 to be inspected with a set power. Through heating, the grease condensed inside the bearing 3 to be inspected is fully softened, thereby avoiding the adhesion phenomenon between the outer ring and the inner ring of the bearing 3 to be inspected due to the solidification of the grease. By reducing the adhesion phenomenon, it is convenient to improve the detection accuracy of the vibration detection device;

[0049] At the same time, when the bearing 3 to be inspected is conveyed, the dust suction seat 17 is set to remove impurities on the outer surface of the bearing 3 to be inspected by a certain negative pressure, and the negative pressure is used to reduce the impurities, so as to improve the surface cleanliness of the inner ring and the outer ring of the bearing 3 to be inspected, thereby reducing the detection error of the detection device caused by impurities on the surface of the bearing 3 to be inspected;

[0050] The three-axis driving platform is transmission-connected with a process turntable 4;

[0051] The three-axis driving platform includes a carrier 21, which is slidably connected to the frame 1, a group of electric push rods 22 are installed between the carrier 21 and the frame 1, a screw lifting module 23 is installed on the carrier 21, and a lifting platform 24 is installed on the screw lifting module 23, and the lifting platform 24 is slidably connected to the carrier 21;

[0052] A rotary arm 25 driven by a rotary motor is rotatably mounted on the lifting platform 24, and two electronic micrometers 2 are respectively arranged on both sides of the rotary arm 25;

[0053] A linear drive module 26 is installed on the rotary arm 25 . The linear drive module 26 is transmission-connected to the process turntable 4 . The process turntable 4 is slidingly connected to the rotary arm 25 .

[0054] When in use, the process turntable 4 can move along three axes by setting the three-axis driving platform.

[0055] A longitudinal inspection seat 5 is slidably mounted on the inner wall of the process turntable 4, and first springs 6 which are limited by the process turntable 4 are mounted on both sides of the longitudinal inspection seat 5;

[0056] The inner wall of the longitudinal inspection seat 5 is rotatably connected with a fixed shaft 7, and a transmission sleeve on the fixed shaft 7 is provided with a rotary clamp shaft 8;

[0057] The interior of the clamp shaft 8 is fixedly provided with a shaft groove with an opening at the rear end and slidably connected to the fixed shaft 7, and the cross sections of the shaft groove and the fixed shaft 7 are both regular polygons;

[0058] A pneumatic clamping module is installed on the clamping shaft 8;

[0059] The pneumatic clamping module includes an air pump 34 installed on the longitudinal inspection seat 5, an air guide channel opened in the fixed axis 7, and an air cavity opened on the rotary clamp shaft 8. The air guide channel is connected to the air cavity. The ventilation port of the air pump 34 is rotatably connected to the air guide channel through a ventilation pipe. An air pressure probe 35 is installed on the ventilation pipe. A group of capsule clamp strips 36 are installed on the rotary clamp shaft 8. The inner cavity of each capsule clamp strip 36 is connected to the air cavity.

[0060] When it is necessary to pick up and clamp the bearing 3 to be inspected, the interior of the bag clamping strip 36 is fully inflated until the value of the air pressure probe 35 reaches the set value.

[0061] A shaft inspection plate 9 is rotatably sleeved on the clamp shaft 8, a T-shaped guide rod 39 is mounted on the surface of the shaft inspection plate 9, the T-shaped guide rod 39 is slidably connected to the longitudinal inspection seat 5, and the axis of the T-shaped guide rod 39 is perpendicular to the axis of the guide shaft 27;

[0062] A second spring 10 is sleeved on the fixed shaft 7 and corresponds to the position between the shaft inspection plate 9 and the longitudinal inspection seat 5;

[0063] A distance measuring probe 11 and a vibration sensor 12 are installed on the longitudinal inspection seat 5 and the axis inspection plate 9;

[0064] It also includes a single-chip microcomputer 19 installed on the frame 1. The data ends of the distance measuring probe 11, the vibration sensor 12 and the electronic micrometer 2 are all connected to the single-chip microcomputer 19. The data end of the air pressure probe 35 is connected to the single-chip microcomputer 19. The two distance measuring probes 11 are arranged perpendicular to each other. A waste storage box 20 with an open top is clamped on the frame 1.

[0065] When the inspection result of the bearing 3 to be inspected is unqualified, under the action of the pneumatic clamping module and the three-axis drive platform, the unqualified bearing 3 to be inspected is finally placed in the waste storage box 20 for storage, so as to realize the classified transportation and classified collection of good bearings and bad bearings by the inspection device.

[0066] The three-axis driving platform is respectively equipped with a driving module that cooperates with the fixed axis 7, a vibration generating component that drives the longitudinal inspection seat 5 to vibrate back and forth, and a rotation detection component that performs rotation detection on the bearing 3 to be inspected.

[0067] The driving module includes a guide shaft 27 rotatably connected to the inner surface of the swing arm 25, a servo motor 29 is installed on the swing arm 25, and the output shaft end of the servo motor 29 is fixedly connected to the guide shaft 27. A hollow shaft 28 is rotatably installed on the longitudinal inspection seat 5. The interior of the hollow shaft 28 is fixed with a hollow groove with openings at both ends and slidingly connected to the guide shaft 27. The cross-sections of the hollow groove and the guide shaft 27 are both regular polygons. First bevel gears are installed on the hollow shaft 28 and the fixed shaft 7, and the two first bevel gears are meshed with each other.

[0068] By setting the guide shaft 27, when the longitudinal inspection seat 5 moves, the guide shaft 27 can continuously drive the fixed shaft 7, and the axis of the fixed shaft 7 is perpendicular to the axis of the guide shaft 27;

[0069] When the bearing 3 to be inspected is being inspected, the pneumatic clamping module clamps the bearing 3 to be inspected from the annular conveyor belt 14. After the bearing 3 to be inspected is picked up, the bearing 3 to be inspected is set vertically. Under the action of the linear drive module 26, the driven rod 33 is fully fitted with the vibration cam 32. After the driven rod 33 is fitted with the vibration cam 32, the vibration cam 32 rotates at a set speed. After the vibration cam 32 rotates, it is set in cooperation with the first limit spring, so that the longitudinal inspection seat 5 and the bearing 3 to be inspected on the longitudinal inspection seat 5 can vibrate at a set frequency, and the longitudinal inspection seat 5 vibrates to generate At the same time, the bearing 3 to be inspected can rotate at a set speed. The oscillating motion of the bearing 3 to be inspected before detection occurs, so that the bearing 3 to be inspected can perform multi-directional movements before detection and the outer ring, steel balls and inner ring of the bearing 3 to be inspected can be fully vibrated and loosened, and the impurities in the bearing 3 to be inspected can be quickly shaken off and the condensed grease in the bearing 3 to be inspected can be fully softened, thereby eliminating the influence of grease condensation and impurity adhesion on the vibration detection accuracy of the bearing 3 to be inspected. At the same time, through the vibration addition before detection, the structural defects of the bearing 3 to be inspected during detection can be fully exposed.

[0070] The vibration generating component includes an active shaft 30 and a passive shaft 31 which are rotatably connected to the swing arm 25. The output shaft end of the servo motor 29 is connected to the active shaft 30 through a belt. Second bevel gears are installed on both the active shaft 30 and the passive shaft 31. The two second bevel gears are meshed with each other. A vibration cam 32 is installed on the passive shaft 31. A driven rod 33 is rotatably installed on the longitudinal inspection seat 5. The height of the driven rod 33 is twice the thickness of the vibration cam 32.

[0071] The rotation detection component includes a friction plate 37, a positioning guide rod slidably connected to the friction plate 37 is installed on the swing arm 25, a pressure sensor 38 is installed between the friction plate 37 and the swing arm 25, the data end of the pressure sensor 38 is connected to the data of the single-chip computer 19, and the bottom surface of the friction plate 37 is evenly distributed with rubber friction strips.

[0072] When it is necessary to test the rotational resistance of the bearing 3 to be tested, under the action of the three-axis drive platform, the bearing 3 to be tested is fitted with the friction plate 37, and then the linear drive module 26 drives the bearing 3 to be tested to move along the direction of the friction plate 37. When the bearing 3 to be tested is displaced along the direction of the friction plate 37, the outer ring of the bearing 3 to be tested rotates. By detecting the data feedback of the pressure sensor 38, the smoothness and resistance of the outer ring of the bearing 3 to be tested during rotation can be quickly measured, and then the rotation performance of the bearing 3 to be tested can be measured.

[0073] When it is necessary to detect the roundness or flatness of the two side surfaces of the bearing 3 to be inspected and the outer ring surface of the bearing 3 to be inspected, the electronic micrometer 2 can sequentially detect the roundness of the two side surfaces of the bearing 3 to be inspected and the outer ring surface of the bearing 3 to be inspected by setting the three-axis driving platform and the rotation angle of the swing arm 25;

[0074] During bearing vibration detection, the process turntable 4 moves to the middle of the swing arm 25, and the longitudinal inspection seat 5 can be in a free moving state. During vibration detection, the bearing 3 to be inspected rotates at a set speed. When the bearing 3 to be inspected rotates, the data feedback of the two Jince distance measuring probes 11 and the data feedback of the two vibration sensors 12 can be used to quickly measure the axial vibration amplitude and longitudinal vibration amplitude of the bearing 3 to be inspected during operation.

[0075] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vibration detection device for a bearing, comprising a frame (1), characterized in that: The frame (1) is respectively equipped with a conveying mechanism, a three-axis driving platform and two symmetrically arranged electronic micrometers (2). The conveying mechanism is used for batch conveying, preheating and dust removal of bearings (3) to be inspected. The three-axis driving platform is drivingly connected to a process turntable (4). A longitudinal inspection seat (5) is slidably installed on the inner wall of the process turntable (4). Both sides of the longitudinal inspection seat (5) are equipped with a first spring (6) limited by the process turntable (4). The inner wall of the longitudinal inspection seat (5) is rotatably connected to a fixed shaft (7). A transmission sleeve is provided on the fixed shaft (7). A pneumatic clamping module is installed on the clamping shaft (8). A shaft inspection plate (9) is rotatably sleeved on the shaft (8), a T-shaped guide rod (39) is installed on the surface of the shaft inspection plate (9), and the T-shaped guide rod (39) is slidably connected to the longitudinal inspection seat (5). A second spring (10) is sleeved on the fixed shaft (7) and corresponds to the position between the shaft inspection plate (9) and the longitudinal inspection seat (5). A distance measuring probe (11) and a vibration sensor (12) are installed on the longitudinal inspection seat (5) and the shaft inspection plate (9). A driving module that cooperates with the fixed shaft (7) for transmission, a vibration generating component that drives the longitudinal inspection seat (5) to reciprocate, and a rotation detection component that performs rotation detection on the bearing (3) to be inspected are respectively installed on the three-axis driving platform.

2. The vibration detection device for a bearing according to claim 1, characterized in that: The conveying mechanism comprises a transmission module (13), the transmission module (13) is transmission-connected to an annular conveyor belt (14), the annular conveyor belt (14) is provided with a group of bearing placement areas distributed in sequence, each of the bearing placement areas is installed with four regularly distributed positioning clamping rods (15), a group of electric heating rollers (16) distributed in a linear array are rotatably installed between the inner surfaces of the frame (1) and at positions corresponding to the inner sides of the annular conveyor belt (14), a dust suction seat (17) is installed on the frame (1) and at a position corresponding to the top of the annular conveyor belt (14), a group of regularly distributed dust suction holes are opened on the dust suction seat (17) and at a position relative to the annular conveyor belt (14), a negative pressure dust collector (18) is installed on the surface of the dust suction seat (17), and the negative pressure dust suction end of the negative pressure dust collector (18) is connected to the inner cavity of the dust suction seat (17).

3. The vibration detection device for a bearing according to claim 1, characterized in that: The invention also comprises a single chip microcomputer (19) mounted on the frame (1); the data ends of the distance measuring probe (11), the vibration sensor (12) and the electronic micrometer (2) are all data-connected to the single chip microcomputer (19); the two distance measuring probes (11) are arranged perpendicular to each other; and a waste storage box (20) with an opening at the top is clamped on the frame (1).

4. The vibration detection device for a bearing according to claim 1, characterized in that: The three-axis driving platform comprises a carrier (21), the carrier (21) is slidably connected to a frame (1), a group of electric push rods (22) are installed between the carrier (21) and the frame (1), a screw lifting module (23) is installed on the carrier (21), a lifting platform (24) is installed on the screw lifting module (23), the lifting platform (24) is slidably connected to the carrier (21), a rotary arm (25) driven by a rotary motor is rotatably installed on the lifting platform (24), a linear driving module (26) is installed on the rotary arm (25), the linear driving module (26) is transmission-connected to a process turntable (4), and the process turntable (4) is slidably connected to the rotary arm (25).

5. The vibration detection device for a bearing according to claim 1, characterized in that: The driving module comprises a guide shaft (27) rotatably connected between the inner surfaces of the swing arm (25), a servo motor (29) is mounted on the swing arm (25), the output shaft end of the servo motor (29) is fixedly connected to the guide shaft (27), a hollow shaft (28) is rotatably mounted on the longitudinal inspection seat (5), a hollow groove with openings at both ends fixedly provided inside the hollow shaft (28) and slidably connected to the guide shaft (27), the cross sections of the hollow groove and the guide shaft (27) are both regular polygons, and first bevel gears are mounted on both the hollow shaft (28) and the fixed shaft (7), and the two first bevel gears are meshed with each other.

6. The vibration detection device for a bearing according to claim 5, characterized in that: The interior of the rotary clamp shaft (8) is fixedly provided with an axis groove with an opening at the rear end and slidably connected to the fixed shaft (7); the cross sections of the axis groove and the fixed shaft (7) are both regular polygons; and the axis of the fixed shaft (7) is perpendicular to the axis of the guide shaft (27).

7. The vibration detection device for a bearing according to claim 5, characterized in that: The vibration generating component comprises a driving shaft (30) and a passive shaft (31) which are rotatably connected to the swing arm (25); the output shaft end of the servo motor (29) is connected to the driving shaft (30) through a belt; second bevel gears are installed on both the driving shaft (30) and the passive shaft (31); the two second bevel gears are meshed with each other; a vibration cam (32) is installed on the passive shaft (31); a driven rod (33) is rotatably installed on the longitudinal inspection seat (5); the height of the driven rod (33) is 1.5 to 3 times the thickness of the vibration cam (32).

8. The vibration detection device for a bearing according to claim 1, characterized in that: The pneumatic clamping module comprises an air pump (34) installed on the longitudinal inspection seat (5), an air guide channel opened in the fixed axis (7), and an air cavity opened on the rotary clamp axis (8); the air guide channel is connected to the air cavity; the ventilation port of the air pump (34) is rotationally connected to the air guide channel through a ventilation pipe; an air pressure probe (35) is installed on the ventilation pipe; the data end of the air pressure probe (35) is connected to the single chip microcomputer (19); a group of capsule clamp strips (36) are installed on the rotary clamp axis (8); the inner cavity of each capsule clamp strip (36) is connected to the air cavity.

9. The vibration detection device for a bearing according to claim 4, characterized in that: The rotation detection component comprises a friction plate (37), a positioning guide rod slidably connected to the friction plate (37) is installed on the swing arm (25), a pressure sensor (38) is installed between the friction plate (37) and the swing arm (25), a data end of the pressure sensor (38) is data-connected to the single-chip computer (19), and the bottom surface of the friction plate (37) is evenly distributed with rubber friction strips.

10. The vibration detection device for a bearing according to claim 1, characterized in that: The two electronic micrometers (2) are respectively arranged on both sides of the rotary arm (25).

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