A deep groove ball bearing sealing detection device

Abstract

This utility model discloses a deep groove ball bearing sealing performance testing device, belonging to the field of bearing testing technology. It includes a testing platform, with a mounting base fixedly installed at the top center of the testing platform. A sliding column is slidably connected through the mounting base. Four connecting blocks are fixedly connected to the top of the outer surface of the sliding column, and four limiting blocks are fixedly installed to the bottom of the outer surface of the sliding column. This deep groove ball bearing sealing performance testing device, by setting up arc-shaped push plates and a handheld circular block, uses the handheld circular block to move the sliding column upwards, causing the four arc-shaped push plates to retract. After the bearing ring is placed on the outside of the four arc-shaped push plates, pressing down the handheld circular block causes a connecting rod to push the arc-shaped push plates tightly against the inner ring of the bearing ring. Simultaneously, a telescopic rod pushes the arc-shaped push plates to prevent them from detaching from the surface of the testing platform, positioning the bearing ring at the top center of the testing platform and aligning it with the sealing cap, ensuring that the sealing cap completely covers the surface of the bearing ring, thus preventing deviations in the sealing performance test.

Description

Technical Field

[0001] This utility model belongs to the field of bearing testing technology, specifically a deep groove ball bearing sealing performance testing device. Background Technology

[0002] Bearing sealing performance testing devices are specialized equipment used to evaluate the sealing performance of bearings. They are mainly used to test the dustproof, waterproof, and leak-proof capabilities of bearings, primarily through air pressure testing. By measuring changes in air pressure, they detect sealing performance and quantify leakage rates. These devices are mainly used in automotive bearing manufacturing, industrial bearing production, aerospace bearing testing, and precision instrument bearing quality control. However, existing bearing sealing performance testing devices, when placing the bearing on the testing platform and controlling the sealing cap to press the bearing firmly, suffer from errors due to manual bearing placement. This makes it difficult to accurately position the bearing at the bottom of the sealing cap, leading to bearing position deviations and misalignment between the sealing cap and the bearing, resulting in errors in the sealing performance test. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides a deep groove ball bearing sealing performance testing device, which solves the problem that when the bearing is placed on the testing table and the sealing cover is pressed against the bearing, the bearing is difficult to accurately place at the bottom of the sealing cover due to manual placement, resulting in bearing position deviation, misalignment between the sealing cover and the bearing, and thus errors in the sealing performance test.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a deep groove ball bearing sealing performance testing device, comprising a testing platform, a mounting base fixedly installed at the center of the top of the testing platform, a sliding column slidably connected through the mounting base, four connecting blocks fixedly connected to the top of the outer circular surface of the sliding column, four limiting blocks fixedly installed at the bottom of the outer circular surface of the sliding column, a connecting rod rotatably connected to one side of the connecting block via a pin, an arc-shaped push plate rotatably connected to the end of the connecting rod away from the connecting block via a pin, a telescopic rod fixedly connected between the arc-shaped push plate and the bottom of the mounting base, a handheld round block fixedly installed on the top of the sliding column, and the handheld round block located on the top of the mounting base, a bearing ring placed on the top of the testing platform, and the inner ring of the bearing ring being tightly fitted against the outer side of the four arc-shaped push plates.

[0005] As a further embodiment of this utility model: guide rods are fixedly installed at the four corners of the top of the testing platform, top seats are fixedly installed on the top of the four guide rods, and electric telescopic platforms are fixedly installed at the bottom of the top seats.

[0006] As a further embodiment of this utility model: a connecting plate is fixedly connected to the bottom of the electric telescopic platform, and the connecting plate is slidably connected to four guide rods through it. An installation block is symmetrically fixedly installed at the center of the bottom of the connecting plate.

[0007] As a further embodiment of this utility model: a plug-in block is slidably connected through one side of the mounting block, a reset spring is fixedly connected between the plug-in block and the inner wall of the mounting block, and limit strips are fixedly installed on both sides of the plug-in block, and the limit strips slide through both sides of the mounting block.

[0008] As a further embodiment of this utility model: a sealing cover is inserted into the bottom of the connecting plate, and the cylindrical surface of the top of the sealing cover is provided with an insertion interface, and the insertion interface corresponds to the position of the insertion block.

[0009] As a further embodiment of this utility model: the surface of the connecting plate located between the two mounting blocks is provided with three snap-fit ​​grooves, and the top of the sealing cover is fixedly installed with three snap-fit ​​strips, and the snap-fit ​​strips correspond to the positions of the snap-fit ​​grooves.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This deep groove ball bearing sealing performance testing device, by setting up arc-shaped push plates and hand-held round blocks, uses the hand-held round blocks to drive the sliding column upward, causing the four arc-shaped push plates to retract. After the bearing ring is placed on the outside of the four arc-shaped push plates, the hand-held round blocks are pressed down, causing the connecting rod to push the arc-shaped push plates to fit tightly against the inner ring of the bearing ring. At the same time, the telescopic rod pushes the arc-shaped push plates to prevent them from detaching from the surface of the testing platform, positioning the bearing ring at the top center of the testing platform and aligning it with the sealing cover. This ensures that the sealing cover completely covers the surface of the bearing ring, thus preventing deviations in the sealing performance test.

[0012] 2. This deep groove ball bearing sealing performance testing device, by setting up a plug block, a snap-fit ​​strip, and a snap-fit ​​groove, inserts the sealing cover into the bottom of the connecting plate, so that the snap-fit ​​strip is inserted into the snap-fit ​​groove. At the same time, rotating the sealing cover causes the snap-fit ​​strip to snap into the snap-fit ​​groove. At this time, the plug block is pushed into the plug interface under the rebound action of the return spring, thereby fixing the sealing cover to the bottom of the connecting plate, completing the installation or replacement of the sealing cover to adapt to different models of bearing rings. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the mounting base of this utility model;

[0015] Figure 3 This is a cross-sectional structural diagram of the connecting plate and sealing cap of this utility model;

[0016] In the diagram: 1. Testing table; 2. Mounting base; 3. Arc-shaped push plate; 4. Handheld round block; 5. Sliding column; 6. Connecting block; 7. Connecting rod; 8. Telescopic rod; 9. Limiting block; 10. Bearing ring; 11. Guide rod; 12. Top seat; 13. Electric telescopic table; 14. Connecting plate; 15. Sealing cover; 16. Snap-fit ​​strip; 17. Snap-fit ​​groove; 18. Mounting block; 19. Insertion block; 20. Return spring; 21. Limiting strip; 22. Insertion interface. Detailed Implementation

[0017] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0018] like Figure 1-3 As shown, this utility model provides a technical solution: a deep groove ball bearing sealing performance testing device, including a testing platform 1, a mounting base 2 fixedly installed at the top center of the testing platform 1, a sliding column 5 slidably connected through the mounting base 2, four connecting blocks 6 fixedly connected to the top of the outer circular surface of the sliding column 5, and four limiting blocks 9 fixedly installed at the bottom of the outer circular surface of the sliding column 5. A connecting rod 7 is rotatably connected to one side of the connecting block 6 via a pin. By providing the limiting blocks 9, the sliding column 5 and the limiting blocks 9 slide within the mounting base 2, so that the sliding column 5 will not detach from the mounting base 2.

[0019] The end of the connecting rod 7 away from the connecting block 6 is rotatably connected to an arc-shaped push plate 3 via a pin. A telescopic rod 8 is fixedly connected between the arc-shaped push plate 3 and the bottom of the mounting base 2. A handheld round block 4 is fixedly installed on the top of the sliding column 5, and the handheld round block 4 is located on the top of the mounting base 2. A bearing ring 10 is placed on the top of the testing table 1, and the inner ring of the bearing ring 10 is in close contact with the outer side of the four arc-shaped push plates 3. By providing the telescopic rod 8, the telescopic rod 8 extends or retracts when the arc-shaped push plate 3 moves, so that the arc-shaped push plate 3 will not deviate when moving.

[0020] Guide rods 11 are fixedly installed at the four corners of the top of the test bench 1. Top seats 12 are fixedly installed on the top of the four guide rods 11. Electric telescopic table 13 is fixedly installed at the bottom of the top seat 12. By using the electric telescopic table 13, the electric telescopic table 13 is controlled to push the connecting plate 14 down, so that the sealing cover 15 is tightly attached to the top of the test bench 1 and covers the bearing ring 10 inside the sealing cover 15, thus completing the airtightness test of the bearing ring 10.

[0021] A connecting plate 14 is fixedly connected to the bottom of the electric telescopic platform 13, and the connecting plate 14 is slidably connected to four guide rods 11. An installation block 18 is symmetrically fixedly installed at the center of the bottom of the connecting plate 14. By providing guide rods 11, the connecting plate 14 slides on the surface of the guide rods 11, so that the connecting plate 14 will not deviate when it is controlled to move by the electric telescopic platform 13.

[0022] A plug-in block 19 is slidably connected through one side of the mounting block 18. A return spring 20 is fixedly connected between the plug-in block 19 and the inner wall of the mounting block 18. Limiting strips 21 are fixedly installed on both sides of the plug-in block 19, and the limiting strips 21 slide through both sides of the mounting block 18. With the return spring 20, the plug-in block 19 is pushed into the mounting block 18 and the return spring 20 is compressed. When the plug-in block 19 is aligned with the insertion interface 22, the return spring 20 rebounds and pushes the plug-in block 19 into the insertion interface 22, thereby completing the installation or replacement of the sealing cover 15.

[0023] A sealing cover 15 is inserted into the bottom of the connecting plate 14. The cylindrical surface at the top of the arc surface of the sealing cover 15 is provided with an insertion interface 22, and the insertion interface 22 corresponds to the position of the insertion block 19. The surface of the connecting plate 14 between the two mounting blocks 18 is provided with three snap-fit ​​grooves 17. Three snap-fit ​​strips 16 are fixedly installed on the top of the sealing cover 15, and the snap-fit ​​strips 16 correspond to the positions of the snap-fit ​​grooves 17. By providing snap-fit ​​strips 16, the snap-fit ​​strips 16 are snapped into the snap-fit ​​grooves 17, thereby snapping the sealing cover 15 onto the connecting plate 14.

[0024] The working principle of this utility model is as follows:

[0025] When the bearing ring 10 is placed on top of the testing table 1, the hand-held block 4 is moved upward through the inner ring of the bearing ring 10, causing the sliding column 5 to pull the connecting rod 7, so that the arc-shaped push plate 3 moves towards the mounting base 2. At the same time, the telescopic rod 8 retracts when the arc-shaped push plate 3 moves, so that the arc-shaped push plate 3 does not detach from the top of the testing table 1. After the bearing ring 10 is placed on top of the testing table 1, the hand-held block 4 is pressed down to move the arc-shaped push plate 3 towards the inner ring of the bearing ring 10, thereby positioning the bearing ring 10 in the center of the top of the testing table 1. The electric telescopic table 13 is controlled to extend and press down the connecting plate 14 so that the sealing cover 15 is pressed tightly against the top of the testing table 1, covering the bearing ring 10 inside the sealing cover 15. When the airtightness of bearing ring 10 is tested, and the sealing cover 15 needs to be replaced to accommodate different models of bearing ring 10, pull the limiting strip 21 on the mounting block 18 to disengage the plug block 19 from the plug interface 22 on the sealing cover 15 and compress the return spring 20. Then rotate the sealing cover 15 to disengage the snap strip 16 from the snap groove 17, remove the sealing cover 15 from the connecting plate 14, and then install the appropriate sealing cover 15 at the bottom of the connecting plate 14. Rotate the sealing cover 15, at which point the plug interface 22 snaps into the plug block 19. Release the limiting strip 21, and under the return action of the return spring 20, insert the plug block 19 into the plug interface 22, thereby completing the replacement and installation of the sealing cover 15.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A deep groove ball bearing sealing performance testing device, comprising a testing platform (1), characterized in that: A mounting base (2) is fixedly installed at the center of the top of the testing platform (1). A sliding column (5) is slidably connected through the inside of the mounting base (2). Four connecting blocks (6) are fixedly connected to the top of the outer circular surface of the sliding column (5). Four limiting blocks (9) are fixedly installed at the bottom of the outer circular surface of the sliding column (5). A connecting rod (7) is rotatably connected to one side of the connecting block (6) via a pin. An arc-shaped push plate (3) is rotatably connected to the end of the connecting rod (7) away from the connecting block (6) via a pin. A telescopic rod (8) is fixedly connected between the arc-shaped push plate (3) and the bottom of the mounting base (2). A handheld round block (4) is fixedly installed on the top of the sliding column (5), and the handheld round block (4) is located on the top of the mounting base (2). A bearing ring (10) is placed on the top of the testing platform (1), and the inner ring of the bearing ring (10) is close to the outer side of the four arc-shaped push plates (3).

2. The deep groove ball bearing sealing performance testing device according to claim 1, characterized in that: The test platform (1) is fixedly installed with guide rods (11) at the four corners of the top, and top seats (12) are fixedly installed on the top of the four guide rods (11). An electric telescopic platform (13) is fixedly installed at the bottom of the top seat (12).

3. The deep groove ball bearing sealing performance testing device according to claim 2, characterized in that: The electric telescopic platform (13) is fixedly connected to a connecting plate (14) at its bottom, and the connecting plate (14) is slidably connected to four guide rods (11). An installation block (18) is symmetrically fixedly installed at the center of the bottom of the connecting plate (14).

4. The deep groove ball bearing sealing performance testing device according to claim 3, characterized in that: A plug-in block (19) is slidably connected through one side of the mounting block (18). A reset spring (20) is fixedly connected between the plug-in block (19) and the inner wall of the mounting block (18). Limiting strips (21) are fixedly installed on both sides of the plug-in block (19), and the limiting strips (21) slide through both sides of the mounting block (18).

5. The deep groove ball bearing sealing performance testing device according to claim 4, characterized in that: The bottom of the connecting plate (14) is fitted with a sealing cap (15), and the cylindrical surface at the top of the sealing cap (15) is provided with an insertion interface (22), and the insertion interface (22) corresponds to the position of the insertion block (19).

6. The deep groove ball bearing sealing performance testing device according to claim 5, characterized in that: The connecting plate (14) has three snap-fit ​​grooves (17) on its surface between the two mounting blocks (18), and the sealing cover (15) has three snap-fit ​​strips (16) fixedly installed on its top, with the snap-fit ​​strips (16) corresponding to the snap-fit ​​grooves (17).

Images