Multi-size adaptive bearing fault diagnosis test bench

Abstract

The utility model discloses a multi-size adaptive bearing fault diagnosis test bench, and belongs to the technical field of bearing diagnosis. The test bench comprises a workbench, the top of the workbench is fixedly connected with a supporting frame, one end of the supporting frame is provided with a control panel, and one side of the middle of the supporting frame is provided with a position sensor. A conveying belt is arranged at the top of the workbench, and a clamping mechanism is arranged at the bottom of the conveying belt. The clamping mechanism can clamp and fix the bearings with different sizes on the top of the conveying belt, is wide in adaptive range and is not limited by the sizes of the bearings. A rotating rod is inserted into a bearing inner ring, and a second electric push rod drives an extrusion block to push an insertion block, so that an extrusion plate extrudes and fixes the bearing inner ring, and rotation test and fault diagnosis are facilitated. And the output end of the motor is detachably connected with the rotating rod, so that the rotating rods with different sizes can be conveniently replaced to adapt to bearings with different inner ring diameters, and the adaptability and the disassembly convenience of the device are improved.

Description

Technical Field

[0001] This utility model relates to the field of bearing diagnostic technology, and more specifically, to a multi-size adaptable bearing fault diagnosis test bench. Background Technology

[0002] In modern industry, bearings are key components of various rotating machinery, and their operating condition directly affects the performance, reliability, and service life of the entire equipment. From aerospace engines and power system generator sets to machine tools, fans, and pumps in industrial production, all rely on the stable operation of bearings. Therefore, accurately diagnosing bearing faults after manufacturing is of paramount importance for ensuring the safe and efficient operation of industrial production.

[0003] Chinese patent application CN202420582711.3 discloses a multi-size adaptable bearing fault diagnosis test bench, including a test platform, a rotation control mechanism on the top rear side of the test platform, and a bearing positioning mechanism on the top front side of the test platform. The rotation control mechanism includes a fixed bracket. This invention, through the cooperation of the positioning turntable, positioning mechanism, and rotation control mechanism, allows bearings to be fixed within the positioning mechanism. The bearings can then be rotated using the positioning turntable to move them one by one to the bottom of the rotation control mechanism for testing, thereby improving the testing speed and bearing testing efficiency.

[0004] However, as can be seen from the accompanying drawings in the instruction manual, the bearing is limited by the positioning turntable and clamped by the clamping mechanism inside the turntable. The structure of the positioning turntable determines that it can only adapt to bearings within a specific maximum size range. Once the size of the bearing to be tested exceeds this preset range, the equipment cannot effectively position and clamp it, and manual placement and removal are required, which only increases labor costs and labor intensity, and is inefficient. Therefore, a bearing fault diagnosis test bench with multi-size adaptation is proposed. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a bearing fault diagnosis test bench with multiple size adaptability to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-size adaptable bearing fault diagnosis test bench, including a workbench, a support frame fixedly connected to the top of the workbench, a control panel provided at one end of the support frame for convenient control of the drive, a conveyor belt provided at the top of the workbench for convenient sequential conveying of bearings to achieve automatic loading and unloading, a position sensor provided on one side of the middle of the support frame for detecting whether the bearing has moved to directly below the rotating rod, a clamping mechanism provided at the bottom of the conveyor belt, and a first electric push rod fixedly connected to the top of the support frame for clamping the bearing located directly below the rotating rod through the clamping mechanism, and controlling the control box to move the rotating rod downward and insert it into the bearing by activating the first electric push rod;

[0007] The moving end of the first electric push rod passes through the support frame and is fixedly connected to the housing. A motor is installed in the middle of the housing. The output end of the motor is connected to a rotating rod through a flange. A second electric push rod is installed in the middle of the rotating rod. A pressing block is connected to the output end of the second electric push rod. Insert blocks are inserted on three sides of the bottom end of the rotating rod. A pressing plate is fixedly connected to one end of the insert block. Activating the first electric push rod controls the housing to move the rotating rod downward. Activating the second electric push rod controls the pressing block to move downward and press the insert block, causing the insert block to move the pressing plate away from the rotating rod until the pressing plate presses and fixes the inner ring of the bearing. By activating the motor to control the rotation of the rotating rod, the inner ring of the bearing can be rotated, which is convenient for diagnostic testing.

[0008] A limiting block is fixedly connected to one end of the insert block. A first stabilizing rod is inserted in the middle of the limiting block. A spring is sleeved on the end of the first stabilizing rod near the extrusion plate. The cooperation between the limiting block and the first stabilizing rod improves the stability of the movement of the insert block and the extrusion plate. The spring pushes the limiting block so that the extrusion plate fits against the wall of the rotating rod when the insert block is not under pressure, which facilitates resetting.

[0009] Preferably, the rotating rod is located directly above the conveyor belt, and the top of the conveyor belt is located directly below the rotating rod at the detection end of the position sensor. The control panel is electrically connected to the position sensor, the motor, and the second electric push rod. The position sensor detects the bearing position at the top of the conveyor belt, and the control panel facilitates start-up control.

[0010] Preferably, the bottom edge of the extrusion block is set as a slope, the top side of the insertion block is set as a slope, the extrusion plate is set as an arc-shaped structure, and the first stabilizing rod and the spring are both set inside the rotating rod. By extruding the insertion block with the extrusion block, the extrusion plate can be moved away from the rotating rod, which is convenient for extruding and fixing the inner rings of bearings of different diameters.

[0011] Preferably, the clamping mechanism includes limiting grooves formed on both sides of the top of the worktable, and a threaded rod and a second stabilizing rod are provided in the middle of the limiting grooves. A dual-axis motor is connected to the opposite side of the two threaded rods.

[0012] Preferably, a support plate is provided in the middle of the limiting groove, and the threaded rod and the second stabilizing rod both pass through the middle of the support plate. The threaded rod is threadedly connected to the support plate, and the two threaded rods are symmetrical.

[0013] Preferably, a clamping plate is fixedly connected to one side of the top of the support plate. The clamping plate is set on the top of both sides of the conveyor belt. An arc groove is provided on the opposite side of the two clamping plates. When the dual-axis motor is started to control the threaded rod to rotate, the support plate can be controlled to slide inside the limiting groove, thereby controlling the support plate to drive the second stabilizing rod to clamp and fix the outer ring of the bearing at the top of the conveyor belt, which is convenient for diagnostic testing.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] This utility model firstly uses a clamping mechanism to easily clamp and fix bearings of different sizes on the top of the conveyor belt, and the maximum bearing size that can be adapted is not limited. Then, by inserting a rotating rod into the inner ring of the bearing and activating a second electric push rod to control the extrusion block to push the insert block, the extrusion plate extrudes and fixes the inner ring of the bearing, which facilitates rotation test diagnosis. Furthermore, by separating the output end of the motor from the rotating rod and replacing the rotating rod with a different size, it can be adapted to bearings with different inner ring diameters, making it convenient to disassemble and replace.

[0016] This utility model also improves the stability of the movement of the insert block and the extrusion plate by using the combination of the limiting block and the first stabilizing rod. The position sensor can detect the position of the top bearing of the conveyor belt located at the bottom of the rotating rod, which facilitates the downward movement of the rotating rod to limit the bearing. The second stabilizing rod improves the stability of the movement of the support plate. The spring pushes the limiting block to make the extrusion plate generate a force to fit the rotating rod, which facilitates automatic reset and improves the performance.

[0017] In summary, through the interaction of the above-mentioned multiple functions, it is possible to conveniently clamp and fix bearings of different sizes at the top of the conveyor belt, and there is no limit to the maximum bearing size that can be adapted. It is also convenient to squeeze and fix the inner ring of the bearing, facilitate rotation test diagnosis, and facilitate the disassembly and replacement of rotating rods of different sizes, making it convenient for use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the clamping mechanism of this utility model.

[0021] Figure 4 This is a schematic diagram of the cross-sectional split structure of the rotating rod of this utility model.

[0022] The attached diagram is labeled as follows: 1. Workbench; 2. Support frame; 3. Control panel; 4. Position sensor; 5. Conveyor belt; 6. First electric push rod; 7. Chassis; 8. Motor; 9. Rotating rod; 10. Second electric push rod; 11. Extrusion block; 12. Insert block; 13. Extrusion plate; 14. Limiting block; 15. First stabilizing rod; 16. Spring; 17. Limiting groove; 18. Threaded rod; 19. Dual-axis motor; 20. Support plate; 21. Second stabilizing rod; 22. Clamping plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] As attached Figure 1-4 The multi-size adaptable bearing fault diagnosis test bench shown includes a workbench 1, a support frame 2 fixedly connected to the top of the workbench 1, a control panel 3 set at one end of the support frame 2 for convenient control of the drive, a conveyor belt 5 set at the top of the workbench 1 for convenient sequential conveying of bearings to achieve automatic loading and unloading, a position sensor 4 set on one side of the middle of the support frame 2 for detecting whether the bearing has moved to directly below the rotating rod 9, a clamping mechanism set at the bottom of the conveyor belt 5, and a first electric push rod 6 fixedly connected to the top of the support frame 2 for clamping the bearing located directly below the rotating rod 9, and controlling the machine box 7 to move the rotating rod 9 downward and insert it into the bearing by activating the first electric push rod 6;

[0025] The moving end of the first electric push rod 6 passes through the support frame 2 and is fixedly connected to the housing 7. A motor 8 is located in the middle of the housing 7. The output end of the motor 8 is connected to a rotating rod 9 via a flange. A second electric push rod 10 is located in the middle of the rotating rod 9. An extrusion block 11 is connected to the output end of the second electric push rod 10. Insert blocks 12 are inserted on three sides of the bottom end of the rotating rod 9. An extrusion plate 13 is fixedly connected to one end of the insert block 12. A limit block 14 is fixedly connected to the bottom of one end of the insert block 12. A first stabilizing rod 15 is inserted in the middle of the limit block 14. A spring 16 is sleeved on the end of the first stabilizing rod 15 near the extrusion plate 13. The first electric push rod 6 is activated. The control box 7 drives the rotating rod 9 to move downwards, and the second electric push rod 10 is activated to control the pressing block 11 to move downwards and press the insert block 12. This causes the insert block 12 to drive the pressing plate 13 to move away from the rotating rod 9 until the pressing plate 13 presses and fixes the inner ring of the bearing. The rotating rod 9 is then controlled to rotate by the starting motor 8, which can rotate the inner ring of the bearing for convenient diagnostic testing. The stability of the movement of the insert block 12 and the pressing plate 13 is improved by the cooperation of the limiting block 14 and the first stabilizing rod 15. The spring 16 pushes the limiting block 14 so that when the insert block 12 is not under pressure, the pressing plate 13 fits against the wall of the rotating rod 9 for easy resetting.

[0026] As attached Figure 1 , 2 As shown in Figure 4, the rotating rod 9 is located directly above the conveyor belt 5, and the top of the conveyor belt 5 is located directly below the rotating rod 9 at the detection end of the position sensor 4. The control panel 3 is electrically connected to the position sensor 4, the motor 8, and the second electric push rod 10. The bottom edge of the extrusion block 11 is set as an inclined surface, and one side of the top of the insertion block 12 is set as an inclined surface. The extrusion plate 13 is set as an arc structure. The first stabilizing rod 15 and the spring 16 are both set inside the rotating rod 9. The bearing position at the top of the conveyor belt 5 is detected by the position sensor 4, and the start-up is easily controlled by the control panel 3. By extruding the insertion block 12 by the extrusion block 11, the extrusion plate 13 can be moved away from the rotating rod 9, which is convenient for extruding and fixing the inner rings of bearings of different diameters.

[0027] As attached Figure 1-3As shown, the clamping mechanism includes limiting slide grooves 17 on both sides of the top of the workbench 1. A threaded rod 18 and a second stabilizing rod 21 are provided in the middle of the limiting slide groove 17. A dual-axis motor 19 is connected to the opposite side of the two threaded rods 18. A support plate 20 is provided in the middle of the limiting slide groove 17. The threaded rod 18 and the second stabilizing rod 21 both pass through the middle of the support plate 20. The threaded rod 18 is threadedly connected to the support plate 20. The two threaded rods 18 are symmetrical. A clamping plate 22 is fixedly connected to one side of the top of the support plate 20. The clamping plates 22 are set on the top of both sides of the conveyor belt 5. An arc-shaped groove is provided on the opposite side of the two clamping plates 22. When the dual-axis motor 19 is started to control the rotation of the threaded rod 18, the support plate 20 can be controlled to slide inside the limiting slide groove 17, thereby controlling the support plate 20 to drive the second stabilizing rod 21 to clamp and fix the outer ring of the bearing at the top of the conveyor belt 5, which is convenient for diagnostic testing.

[0028] The working principle of this utility model is as follows: When in use, the bearing to be tested is placed on the top of the conveyor belt 5, and the bearing is moved to the bottom of the rotating rod 9 by the conveyor belt 5. When the position sensor 4 detects that the bearing at the top of the conveyor belt 5 has moved directly below the rotating rod 9, the dual-axis motor 19 is started to control the clamping plate 22 to clamp and fix the bearing.

[0029] Then, the first electric push rod 6 is activated to control the rotating rod 9 to insert into the middle of the bearing inner ring. Then, the second electric push rod 10 is activated to control the pressing block 11 to push the insert block 12, so that the pressing plate 13 presses and fixes the bearing inner ring. Then, the motor 8 is activated to control the rotating rod 9 to drive the pressing plate 13 and the bearing inner ring to rotate, so that the bearing can be used for fault diagnosis test. When the bearing is damaged inside, the rotational resistance of the rotating rod 9 will increase. The torque detector in the prior art can be used to detect whether the torque resistance of the rotating rod 9 controlled by the motor 8 is within the normal range, so as to determine whether the bearing is qualified, which is convenient for diagnostic test.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-size adaptive bearing fault diagnosis test bench comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected to a support frame (2), one end of the support frame (2) is provided with a control panel (3), the top of the workbench (1) is provided with a conveyor belt (5), one side of the middle part of the support frame (2) is provided with a position sensor (4), the bottom of the conveyor belt (5) is provided with a clamping mechanism, and the top of the support frame (2) is fixedly connected to a first electric push rod (6). The moving end of the first electric push rod (6) passes through the support frame (2) and is fixedly connected to the housing (7). A motor (8) is provided in the middle of the housing (7). The output end of the motor (8) is connected to a rotating rod (9) through a flange. A second electric push rod (10) is provided in the middle of the rotating rod (9). An extrusion block (11) is connected to the output end of the second electric push rod (10). Insert blocks (12) are inserted on three sides of the bottom end of the rotating rod (9). An extrusion plate (13) is fixedly connected to one end of the insert block (12). One end of the insert (12) is fixedly connected to a limiting block (14), and a first stabilizing rod (15) is inserted in the middle of the limiting block (14). A spring (16) is sleeved on one end of the first stabilizing rod (15) near the extrusion plate (13).

2. The multi-size adaptive bearing fault diagnosis test bench according to claim 1, characterized in that: The rotating rod (9) is located directly above the conveyor belt (5), and the top of the conveyor belt (5) is located directly below the rotating rod (9) at the detection end of the position sensor (4). The control panel (3) is electrically connected to the position sensor (4), the motor (8), and the second electric push rod (10).

3. The multi-size adaptive bearing fault diagnosis test bench according to claim 1, characterized in that: The bottom edge of the extrusion block (11) is set as a slope, the top side of the insertion block (12) is set as a slope, the extrusion plate (13) is set as an arc structure, and the first stabilizing rod (15) and the spring (16) are both set inside the rotating rod (9).

4. The multi-size adaptive bearing fault diagnosis test bench according to claim 1, characterized in that: The clamping mechanism includes limiting slides (17) on both sides of the top of the workbench (1). A threaded rod (18) and a second stabilizing rod (21) are provided in the middle of the limiting slide (17). A dual-axis motor (19) is connected to the opposite side of the two threaded rods (18).

5. The multi-size adaptive bearing fault diagnosis test bench according to claim 4, characterized in that: A support plate (20) is provided in the middle of the limiting slide (17). The threaded rod (18) and the second stabilizing rod (21) both pass through the middle of the support plate (20). The threaded rod (18) is threadedly connected to the support plate (20), and the two threaded rods (18) are symmetrical.

6. The multi-size adaptive bearing fault diagnosis test bench according to claim 5, characterized in that: A clamping plate (22) is fixedly connected to one side of the top of the support plate (20). The clamping plate (22) is set on the top of both sides of the conveyor belt (5). An arc groove is provided on the opposite side of the two clamping plates (22).

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