A self-rotating bearing fault detection machine

Abstract

The present invention discloses a self-rotating bearing fault detection machine, which belongs to the technical field of bearing fault detection. The machine is provided with a support seat, a motor is embedded and installed at the center of the support seat, a detection platform is fixed on the top of the connecting shaft, and a movable rod is passed through the edge of the detection platform, and a bearing body is sleeved on the outer side of the upper end of the movable rod; it also includes: a gear, which is fixedly sleeved on the outer side of the lower end of the movable rod, and the side of the gear is meshed and connected with a gear ring; a first limiting mechanism is arranged on the inner side of the inner ring of the bearing body, the first limiting mechanism is interconnected with the connecting shaft, and a cylinder is installed on the edge of the support seat. The self-rotating bearing fault detection machine can operate multiple bearings at the same time, and can limit or release the limit of multiple bearings at the same time, which improves the detection efficiency to a certain extent, and can also perform fault detection on the bearings when they are used in different states, thereby improving the comprehensiveness of the detection.

Description

Technical Field

[0001] The invention relates to the technical field of bearing fault detection, in particular to a self-rotating bearing fault detection machine. Background Art

[0002] Before a bearing is put into use, it is particularly important to detect its fault to avoid affecting the normal operation of the equipment due to the fault during use. Usually, the smoothness of rotation between the inner ring and the outer ring of the bearing is detected to prevent the occurrence of jamming and equipment shutdown. For example, a bearing fault detection platform with the publication number CN117890110B is provided; it includes a base and a panel fixed to the top of the base, the base is provided with a vibration sensor, a shock pulse sensor, a speed sensor, a visual sensor and an infrared sensor in contact with the side wall of the panel, and also includes: a clamping assembly arranged in the base, the clamping assembly is used to clamp and fix the inner and outer rings of the bearing to be detected respectively; by arranging a forward rotation assembly and a transmission assembly, when it is necessary to detect the bearing to be detected, it is necessary to rotate the bearing at a high speed to achieve the purpose of detecting the inner and outer rings of the bearing in the same direction at different speeds; by arranging a transmission assembly and a reverse rotation assembly, the purpose of detecting the inner and outer rings of the bearing in the opposite direction at different speeds is achieved;

[0003] For example, a bearing fault detection platform with the publication number CN113310692B is characterized in that it includes a base, a plurality of columns are connected to the upper part of the base, a base is connected to the upper part of the columns, a rotating disk is arranged in the middle of the base, a driving mechanism is arranged on the upper part of the base, the driving mechanism can drive the rotating disk to rotate on the base, a support column and a liquid storage cavity are arranged on the upper part of the rotating disk, a mounting disk is arranged above the support column, a plurality of support beams are connected between the mounting disk and the support column, three slide grooves are provided on the mounting disk, a fixed block is arranged to slide in the slide groove, a limiting column is connected to the upper part of the fixed block, and a guiding inclined surface is arranged on the side of the fixed block away from the center of the mounting disk. The inner ring and outer ring of the bearing can be fixed separately conveniently, so as to better detect the bearing. However, the above-mentioned bearing fault detection platform still has the following disadvantages in actual use:

[0004] 1. Traditional fault detection machines can only operate on a single bearing during detection. When detecting multiple bearings, the bearings need to be limited one by one, and the release of the limit also requires a single operation. Therefore, the operation process is cumbersome, resulting in low detection efficiency;

[0005] 2. After the bearing is connected to the equipment and the shaft, it is often affected by the vibration of the equipment during operation. However, traditional fault detection machines do not have the ability to detect faults when the bearing is used in different states.

[0006] In view of the above problems, it is urgent to carry out innovative design based on the original bearing fault detection machine. Summary of the invention

[0007] The purpose of the present invention is to provide a self-rotating bearing fault detection machine to solve the problem that traditional fault detection machines mentioned in the above background technology can only operate on a single bearing during detection. When detecting multiple bearings, it is necessary to limit the bearings one by one, and a single operation is also required to release the limit. In addition, traditional fault detection machines do not have the ability to detect faults when bearings are used in different states during detection.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a self-rotating bearing fault detection machine, provided with a support seat, a motor is embedded and installed at the center of the support seat, and the output shaft of the motor is connected to a connecting shaft, a detection platform is fixed on the top of the connecting shaft, and a movable rod is passed through the edge of the detection platform, a bearing body is sleeved on the outer side of the upper end of the movable rod, and a detection ring is installed on the outer side of the movable rod inside the detection platform;

[0009] It also includes: a gear, which is fixedly sleeved on the outer side of the lower end of the movable rod, and the side of the gear is meshed and connected with a gear ring, and the gear ring is fixed above the support seat;

[0010] The first limiting mechanism is arranged on the inner side of the inner ring of the bearing body, the first limiting mechanism is connected to the connecting shaft, a cylinder is installed at the edge of the support seat, and a second limiting mechanism is arranged on the output shaft of the cylinder, and the second limiting mechanism is arranged on the outer side of the outer ring of the bearing body.

[0011] Preferably, the movable rods are distributed at equal angles on the detection platform, and the movable rods and the detection platform are rotatably connected, and the outer wall of the movable rod is in close contact with the inner wall of the detection ring. At the same time, the bottom of the movable rod and the slip ring on the surface of the support seat form a sliding structure. When the motor is driven, the bearing can be revolved and its inner ring can be rotated through the meshing transmission of the gear and the gear ring.

[0012] Preferably, the first limiting mechanism includes an adjusting cylinder sleeved on the outside of the connecting shaft, and a threaded groove is provided in the middle section of the connecting shaft, and the connecting shaft and the adjusting cylinder are threadedly connected. When the adjusting cylinder is rotated, its height on the connecting shaft can be changed, and the movable ring and the connecting rod can be driven to rise and fall synchronously.

[0013] Preferably, a movable ring is provided on the outer side of the adjusting cylinder, and the movable ring and the adjusting cylinder are rotatably connected, and one end of a connecting rod is fixed at an equal angle on the side of the movable ring, and the connecting rod is an "L"-shaped structure. The movable ring can rotate on the adjusting cylinder, so it will not rotate with the adjusting cylinder, and will not affect the lifting and lowering of the connecting rod.

[0014] Preferably, a through groove is provided on the movable rod on the outside of the connecting rod, and the connecting rod forms a longitudinal sliding structure through the through groove and the movable rod, and a guide block is fixed to the other end of the connecting rod, and at the same time, the side of the guide block close to the limit rod is a slope structure. When the connecting rod is raised, it can push the guide block to rise in the fixed cavity and drive the slope of the guide block to contact the end of the limit rod.

[0015] Preferably, a fixed cavity is opened in the movable rod outside the guide block, and the edge of the guide block and the inner wall of the fixed cavity are slidably connected, and the limit rod and the movable rod are slidably connected. At the same time, a spring for resetting the limit rod is wound around the outside of the limit rod. When the limit rod is pushed, it can slide in the movable rod and extend out to contact the inner ring of the bearing to limit it.

[0016] Preferably, the second limiting mechanism includes a support ring arranged on the output shaft of the cylinder, and the lower end surface of the support ring and the output shaft of the cylinder are slidably connected, and a fixing rod is arranged at an equal angle on the upper end surface of the support ring, so that the support ring can be driven to rise and fall through the cylinder, and the support ring can also be rotated on the output shaft of the cylinder.

[0017] Preferably, a connecting plate is fixed to the top of the fixing rod, and a limiting block is pasted on the inner side of the connecting plate, and the limiting block is made of rubber. At the same time, the thickness of the limiting block is greater than the minimum spacing between the connecting plate and the bearing body, and the height of the connecting plate is greater than the lifting height of the support ring and the connecting ring. When the support ring is raised, the connecting plate is driven to rise synchronously through the fixing rod, and the limiting block is driven to contact the outer ring of the bearing body to limit it.

[0018] Preferably, a connecting ring is provided on the inner side of the support ring, and the connecting ring is slidably arranged on the inner side of the support ring through a rod body, the bottom of the connecting ring is slidably connected to the support seat through the rod body, and fixed blocks are provided at equal angles on the inner wall of the connecting ring, and connecting blocks are fixed at equal angles at the edge of the detection table, and the connecting ring drives the fixed block to contact the connecting block when it rotates, and when the fixed block is raised to be opposite to the connecting block, the bearing vibration detection can be realized through the contact between the two.

[0019] Compared with the prior art, the beneficial effects of the present invention are: the self-rotating bearing fault detection machine can operate multiple bearings at the same time, and can limit or release the limit of multiple bearings at the same time, which improves the detection efficiency to a certain extent, and can also perform fault detection on the bearings when they are used in different states, thereby improving the comprehensiveness of the detection. The specific contents are as follows:

[0020] 1. The adjusting cylinder is rotated to transmit the threaded transmission with the connecting shaft, so that the adjusting cylinder can rise on the connecting shaft, and the connecting rod is driven to rise synchronously through the movable ring, and then the connecting rod pushes the guide block to rise in the fixed cavity, and as the guide block gradually rises, the limiting rod can be pushed to slide on the movable rod, and the end of the limiting rod can abut against the inner ring of the bearing body to limit its inner ring;

[0021] Furthermore, the motor drives the connecting shaft to rotate, and at the same time drives multiple bearing bodies to revolve synchronously through the detection platform. During the revolution, the meshing transmission between the gear and the gear ring can drive the movable rod to rotate, and then drive the inner ring of the bearing body to rotate to realize fault detection;

[0022] 2. The cylinder pushes the support ring and the fixing rod to rise, which in turn drives the connection plate to rise synchronously, and then allows the limit block to contact the outer ring of the bearing body. The resistance between the two is used to limit the outer ring of the bearing body, ensuring that the inner and outer rings of the bearing body can rotate relative to each other during the detection process, which is convenient for the subsequent revolution of the bearing body and the rotation of its inner ring;

[0023] Furthermore, the cylinder continues to push the support ring and the fixed rod to rise. At this time, the limit block will not release the limit on the outer ring of the bearing body, and at the same time can drive the connecting ring and the test bench to the same height. When the subsequent test bench drives the bearing body to rotate, it can drive the connecting block and the fixed block to contact. After the two are in contact, they can generate vibration and transmit the vibration force to the bearing body. The bearing body can be further tested by vibration to improve the diversity of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a front view structural schematic diagram of the present invention;

[0025] Figure 2 It is a schematic diagram of the front cross-section structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the front cross-section structure of the movable rod of the present invention;

[0027] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0028] Figure 5 It is a schematic diagram of the top view of the gear ring structure of the present invention;

[0029] Figure 6 This is a bottom view of the structure of the movable rod of the present invention;

[0030] Figure 7 This is a schematic diagram of the test structure of the connecting plate of the present invention;

[0031] Figure 8 This is a schematic diagram of the structure in which the connecting plate of the present invention is raised for a certain distance;

[0032] Fig. 9 It is a structural schematic diagram of the connection plate of the present invention raised to the highest point.

[0033] In the figure: 1. support seat; 2. motor; 3. connecting shaft; 4. detection table; 5. movable rod; 6. bearing body; 7. detection ring; 8. gear; 9. gear ring; 10. adjustment cylinder; 11. movable ring; 12. connecting rod; 13. through groove; 14. guide block; 15. fixed cavity; 16. limit rod; 17. cylinder; 18. support ring; 19. fixed rod; 20. connecting plate; 21. limit block; 22. connecting ring; 23. fixed block; 24. connecting block. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1-Figure 9 , the present invention provides the following technical solutions:

[0036] Embodiment 1: In order to solve the problems existing in the prior art, this embodiment adopts the following technical scheme: a self-rotating bearing fault detection machine is provided with a support seat 1, a motor 2 is embedded and installed at the center of the support seat 1, and the output shaft of the motor 2 is connected to the connecting shaft 3, a detection platform 4 is fixed on the top of the connecting shaft 3, and a movable rod 5 passes through the edge of the detection platform 4, a bearing body 6 is sleeved on the outer side of the upper end of the movable rod 5, and a detection ring 7 is installed on the outer side of the movable rod 5 inside the detection platform 4; it also includes: a gear 8, which is fixedly sleeved on the outer side of the lower end of the movable rod 5, and the side of the gear 8 is meshingly connected with a gear ring 9, and the gear ring 9 is fixed on the top of the support seat 1; a first limiting mechanism is arranged on the inner side of the inner ring of the bearing body 6, the first limiting mechanism is connected to the connecting shaft 3, a cylinder 17 is installed at the edge of the support seat 1, and a second limiting mechanism is arranged on the output shaft of the cylinder 17, and the second limiting mechanism is arranged on the outer side of the outer ring of the bearing body 6.

[0037] Most existing fault detection machines can only operate on a single bearing body 6 during detection. When detecting multiple bearing bodies 6, the bearing bodies 6 need to be limited one by one, and a single operation is also required when the limit is released. Therefore, the operation process is cumbersome, resulting in low detection efficiency. Figure 1-Figure 5As shown, the movable rods 5 are distributed at equal angles on the detection platform 4, and the movable rods 5 and the detection platform 4 are rotatably connected, and the outer wall of the movable rod 5 is in close contact with the inner wall of the detection ring 7, and the bottom of the movable rod 5 and the slip ring on the surface of the support seat 1 form a sliding structure; the first limiting mechanism includes an adjusting cylinder 10 sleeved on the outside of the connecting shaft 3, and the middle section of the connecting shaft 3 is provided with a threaded groove, and the connecting shaft 3 and the adjusting cylinder 10 are threadedly connected; the outer side of the adjusting cylinder 10 is sleeved with a movable ring 11, and the movable ring 11 and the adjusting cylinder 10 are rotatably connected, and the side of the movable ring 11 is fixed with a connecting ring at equal angles. One end of the rod 12, and the connecting rod 12 is an "L"-shaped structure; a through slot 13 is provided on the movable rod 5 outside the connecting rod 12, and the connecting rod 12 forms a longitudinal sliding structure with the movable rod 5 through the through slot 13, and a guide block 14 is fixed to the other end of the connecting rod 12, and the side of the guide block 14 close to the limit rod 16 is an inclined structure; a fixed cavity 15 is provided in the movable rod 5 outside the guide block 14, and the edge of the guide block 14 and the inner wall of the fixed cavity 15 are slidably connected, and the limit rod 16 and the movable rod 5 are slidably connected, and the outer side of the limit rod 16 is wrapped with a Spring; first, the bearing body 6 to be tested is sleeved at an equal angle on the outside of the movable rod 5 on the test table 4, and then the adjusting cylinder 10 is rotated through the threaded transmission with the connecting shaft 3, so that the adjusting cylinder 10 can rise on the connecting shaft 3, and the connecting rod 12 is driven to rise synchronously through the movable ring 11. Since the movable ring 11 can rotate outside the adjusting cylinder 10, it will not affect the position of the connecting rod 12. Then the connecting rod 12 pushes the guide block 14 to rise in the fixed cavity 15, and the inclined surface of the guide block 14 can contact the end of the limit rod 16, and as the guide block 14 gradually rises, It can push the limiting rod 16 to slide on the movable rod 5, and the end of the limiting rod 16 can contact the inner ring of the bearing body 6 to limit its inner ring. Since multiple connecting rods 12 are arranged at equal angles on the movable ring 11, multiple bearing bodies 6 can be simultaneously limited, and the limit release is also synchronous. After the detection is completed, the adjustment cylinder 10 is rotated in the reverse direction to drive the connecting rod 12 and the guide block 14 to descend, and the push on the limiting rod 16 is released. The limiting rod 16 can be driven to retract into the movable rod 5 through the resilience of the spring and no longer conflict with the inner ring of the bearing body 6, so that the bearing body 6 can be easily disassembled.

[0038] After the bearing body 6 is limited, the motor 2 drives the connecting shaft 3 to rotate, and at the same time drives multiple bearing bodies 6 to revolve synchronously through the detection table 4. During the revolution, the meshing transmission of the gear 8 and the gear ring 9 can drive the movable rod 5 to rotate, and then drive the inner ring of the bearing body 6 to rotate. When the rotation is stuck, it can be detected by the detection ring 7.

[0039] Embodiment 2: After the existing bearing body 6 is connected to the equipment and the shaft, it is often affected by the vibration of the equipment during operation. The traditional fault detection machine does not have the ability to detect the faults of the bearing body 6 when it is used in different states. Therefore, this embodiment adopts the following technical solutions, such as Figure 1 and Figure 6-Figure 9 As shown, the second limiting mechanism includes a support ring 18 arranged on the output shaft of the cylinder 17, and the lower end surface of the support ring 18 and the output shaft of the cylinder 17 are slidably connected, and a fixing rod 19 is arranged at an equal angle on the upper end surface of the support ring 18; a connecting plate 20 is fixed to the top of the fixing rod 19, and a limiting block 21 is pasted on the inner side of the connecting plate 20, and the limiting block 21 is made of rubber material, and the thickness of the limiting block 21 is greater than the minimum spacing between the connecting plate 20 and the bearing body 6, and the height of the connecting plate 20 is greater than the lifting height of the support ring 18 and the connecting ring 22; a connecting ring 22 is arranged on the inner side of the support ring 18, and the connecting ring 22 is slidably arranged on the inner side of the support ring 18 through a rod body, and the bottom of the connecting ring 22 is slidably connected to the support seat 1 through a rod body, and the inner wall of the connecting ring 22 is provided with fixing blocks at equal angles. 23, a connecting block 24 is fixed at an equal angle on the edge of the testing platform 4, and the connecting ring 22 drives the fixing block 23 to contact the connecting block 24 when it rotates; after completing the limit of the inner ring of the bearing body 6, the support ring 18 and the fixing rod 19 are pushed up by the cylinder 17, thereby driving the synchronous rise of the connecting plate 20, and at the same time driving the connecting ring 22 to rise, and the connecting ring 22 slides on the support seat 1 through the rod body. At this time, the height of the connecting ring 22 is lower than the height of the testing platform 4, and then the limit block 21 can contact the outer ring of the bearing body 6, and the outer ring of the bearing body 6 is limited by the resistance between the two, ensuring that the inner and outer rings of the bearing body 6 can rotate relative to each other during the detection process, which is convenient for the subsequent revolution of the bearing body 6 and the rotation of its inner ring, while the connecting ring 22 remains stationary when the testing platform 4 and the supporting ring 18 rotate;

[0040] Afterwards, the cylinder 17 continues to push the support ring 18 and the fixing rod 19 to rise. At this time, the limit block 21 will not release the limit on the outer ring of the bearing body 6, and at the same time can drive the connecting ring 22 to be at the same height as the detection platform 4. When the subsequent detection platform 4 drives the bearing body 6 to rotate, it can drive the connecting plate 20 and the support ring 18 to rotate synchronously. Since the connecting ring 22 slides on the inner side of the support ring 18, the connecting ring 22 will not rotate. In this way, the detection platform 4 can drive the connecting block 24 to contact with the fixing block 23 when rotating. After the two are in contact, vibration can be generated, and the vibration force can be transmitted to the bearing body 6. The bearing body 6 can be further detected by vibration, thereby improving the diversity of detection.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-rotating bearing fault detection machine, comprising a support seat (1), a motor (2) embedded and installed at the center of the support seat (1), and the output shaft of the motor (2) is connected to a connecting shaft (3), a detection platform (4) is fixed on the top of the connecting shaft (3), and a movable rod (5) penetrates the edge of the detection platform (4), a bearing body (6) is sleeved on the outer side of the upper end of the movable rod (5), and a detection ring (7) is installed on the outer side of the movable rod (5) inside the detection platform (4); characterized in that: Also includes: A gear (8) is fixedly sleeved on the outer side of the lower end of the movable rod (5); a side of the gear (8) is meshingly connected with a gear ring (9), and the gear ring (9) is fixed above the support seat (1); A first limiting mechanism is arranged on the inner side of the inner ring of the bearing body (6), the first limiting mechanism is connected to the connecting shaft (3), a cylinder (17) is installed at the edge of the support seat (1), and a second limiting mechanism is arranged on the output shaft of the cylinder (17), and the second limiting mechanism is arranged on the outer side of the outer ring of the bearing body (6).

2. A self-rotating bearing fault detection machine according to claim 1, characterized in that: The movable rods (5) are distributed at equal angles on the detection platform (4), and the movable rods (5) and the detection platform (4) are rotatably connected, and the outer wall of the movable rod (5) is in close contact with the inner wall of the detection ring (7), and the bottom of the movable rod (5) and the slip ring on the surface of the support seat (1) form a sliding structure.

3. The self-rotating bearing fault detection machine according to claim 1, characterized in that: The first limiting mechanism comprises an adjusting cylinder (10) sleeved on the outside of the connecting shaft (3), a thread groove is provided in the middle section of the connecting shaft (3), and the connecting shaft (3) and the adjusting cylinder (10) are threadedly connected.

4. The self-rotating bearing fault detection machine according to claim 3, characterized in that: A movable ring (11) is sleeved on the outer side of the adjustment tube (10), and the movable ring (11) and the adjustment tube (10) are rotatably connected, and one end of a connecting rod (12) is fixed at an equal angle to the side surface of the movable ring (11), and the connecting rod (12) is an "L"-shaped structure.

5. The self-rotating bearing fault detection machine according to claim 4, characterized in that: A through slot (13) is provided on the movable rod (5) outside the connecting rod (12), and the connecting rod (12) forms a longitudinal sliding structure through the through slot (13) and the movable rod (5), and a guide block (14) is fixed to the other end of the connecting rod (12), and a side of the guide block (14) close to the limiting rod (16) is an inclined structure.

6. The self-rotating bearing fault detection machine according to claim 5, characterized in that: A fixed cavity (15) is provided in the movable rod (5) outside the guide block (14), and the edge of the guide block (14) and the inner wall of the fixed cavity (15) are slidably connected, and the limit rod (16) and the movable rod (5) are slidably connected, and a spring for returning the limit rod (16) is wound around the outside of the limit rod (16).

7. The self-rotating bearing fault detection machine according to claim 1, characterized in that: The second limiting mechanism comprises a support ring (18) arranged on the output shaft of the cylinder (17), wherein the lower end surface of the support ring (18) and the output shaft of the cylinder (17) are slidably connected, and a fixing rod (19) is arranged at an equal angle on the upper end surface of the support ring (18).

8. The self-rotating bearing fault detection machine according to claim 7, characterized in that: A connecting plate (20) is fixed to the top of the fixing rod (19), and a limiting block (21) is adhered to the inner side of the connecting plate (20), and the limiting block (21) is made of rubber. The thickness of the limiting block (21) is greater than the minimum distance between the connecting plate (20) and the bearing body (6), and the height of the connecting plate (20) is greater than the lifting height of the support ring (18) and the connecting ring (22).

9. The self-rotating bearing fault detection machine according to claim 8, characterized in that: A connecting ring (22) is arranged on the inner side of the support ring (18), the connecting ring (22) is slidably arranged on the inner side of the support ring (18) through a rod body, the bottom of the connecting ring (22) is slidably connected to the support seat (1) through the rod body, and a fixing block (23) is arranged at an equal angle on the inner wall of the connecting ring (22), and a connecting block (24) is fixed at an equal angle at the edge of the detection platform (4), and when the connecting ring (22) rotates, the fixing block (23) is driven to contact the connecting block (24).

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