A kind of sealing performance detection device of tapered roller bearing

Abstract

This utility model discloses a tapered roller bearing sealing performance testing device, belonging to the field of tapered roller bearing testing technology. It includes a base, a rotating shaft rotatably connected to a through hole at the top of the base, a turntable fixedly mounted on the top of the rotating shaft, and two testing devices fixedly mounted on the top of the turntable. Each testing device includes a testing disc, a testing port fixedly mounted inside the testing disc, a bearing housing fixedly mounted on the top of the testing disc, a shell fixedly mounted on the outer wall of the bearing housing, an airbag fixedly mounted on the top of the bearing housing, and a positioning pin fixedly mounted on the top of the bearing housing. This tapered roller bearing sealing performance testing device solves the problem of relying entirely on manual observation to judge the bearing's sealing performance, improves the accuracy of bearing sealing performance testing, reduces human error, is compatible with multiple bearing specifications and improves adaptability, and does not cause wear or damage to the bearing during testing.

Description

Technical Field

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

[0002] In modern industry, tapered roller bearings are key components that can withstand both radial and axial loads. Their operating condition directly affects the stability, reliability, and service life of the entire mechanical system. Sealing performance, as one of the core technical indicators of tapered roller bearings, is a key factor in determining whether they can work efficiently for a long time under complex working conditions.

[0003] Currently, the sealing performance of tapered roller bearings is mostly tested using static immersion or simple pressure testing methods. These methods not only rely on manual observation and visual judgment of bubble formation, which is highly subjective and prone to large errors, making it difficult to guarantee testing accuracy; but also require the replacement of suitable fixing devices for bearings of different specifications, resulting in poor compatibility and low testing efficiency. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a tapered roller bearing sealing performance testing device, which solves the problem that the testing of tapered roller bearing sealing performance mostly adopts static immersion or simple pressure testing methods. These methods not only rely on manual observation and visual judgment of bubble formation, which is highly subjective and prone to large errors, making it difficult to guarantee testing accuracy; but also require the replacement of suitable fixing devices for bearings of different specifications, resulting in poor compatibility.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tapered roller bearing sealing performance testing device, comprising a base, a rotating shaft rotatably connected to a through hole at the top of the base, a turntable fixedly mounted on the top of the rotating shaft, two testing devices fixedly mounted on the top of the turntable, each testing device comprising a testing disc, a testing port fixedly mounted inside the testing disc, a bearing seat fixedly mounted on the top of the testing disc, a shell fixedly mounted on the outer wall of the bearing seat, an airbag one fixedly mounted on the top of the bearing seat, a positioning post one fixedly mounted on the top of the bearing seat, an airbag two fixedly mounted on the outer wall of the positioning post one, two air guide blocks provided at the top of the bearing seat, two air pipes fixedly mounted at each end of the air guide blocks, the two air pipes being fixedly connected to the inner wall of the airbag one and the outer wall of the airbag two respectively, and a pressing plate fixedly mounted on the top of the air guide blocks.

[0006] As a further embodiment of this utility model: a crossbeam is fixedly installed on the top of the base, an electric push rod is fixedly installed at the bottom of the protruding part of the crossbeam, a detection cover device is fixedly installed at the bottom of the electric push rod, the detection cover device includes a cover shell, a rubber pad is fixedly installed on the inner wall of the cover shell, a positioning column two is fixedly installed on the top of the cover shell, a pressure pump is fixedly installed on the outer wall of the cover shell, and a pressure gauge is fixedly installed on the top of the cover shell.

[0007] As a further embodiment of this utility model: a control panel is fixedly installed on one side of the crossbeam, the crossbeam is L-shaped and the top of the inner wall is fixed to the top of the electric push rod.

[0008] As a further embodiment of this utility model: a support foot is fixedly installed at the bottom of the base, and a caster wheel is fixedly installed at the bottom of the support foot.

[0009] As a further embodiment of this utility model: the bottom of the inner wall of the bearing seat is provided with several through holes, and the through holes are connected to the detection port in the middle of the detection plate.

[0010] As a further embodiment of this utility model: four handles are fixedly installed on the outer wall of the turntable, and the included angle between two adjacent handles is ninety degrees.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This tapered roller bearing sealing performance testing device, consisting of a testing disc, a testing port, a bearing housing, and an air bladder, uses the testing disc and testing port to determine if there is any air leakage during bearing testing. If gas passes through the bearing, it will flow from the through-hole in the bearing housing to the testing port, where it will be detected, thus determining if the bearing is leaking. Installing a housing on the outer wall of the bearing housing prevents debris or air from entering, effectively preventing air from entering the interior and ensuring a smooth testing process. A positioning pin fixedly installed on the top of the bearing housing secures the inner wall of the bearing, achieving a positioning effect. The outer wall of the bearing and the housing... The inner wall of the device is equipped with airbags one and two, which can be used to position and fix bearings of different sizes. When the bearing is placed in the bearing housing, the bottom of the bearing first contacts the pressing plate. The pressing plate presses down on the air guide block, causing the gas in the air guide block to be squeezed through the air tube into airbags one and two, thus inflating airbags one and two. The expansion can fix the bearing, thereby positioning bearings of different sizes. This solves the problem of relying entirely on manual observation to judge the sealing performance of bearings, improves the accuracy of bearing sealing performance testing, reduces human error, is compatible with multiple bearing sizes and improves adaptability, and does not cause wear or damage to the bearings during testing.

[0012] 2. This tapered roller bearing sealing performance testing device, by setting up a cover shell, rubber gasket, pressure pump, and pressure gauge, uses a cover shell with the same diameter as the outer shell of the testing device to prevent air from entering. The rubber gasket installed on the inner wall of the cover shell further enhances the sealing effect, providing cushioning and adaptability, while also avoiding hard contact that would cause wear and thus improving service life. The pressure pump is fixedly installed on the outer wall of the cover shell, providing the pressure medium required for testing. The pressure gauge is used to observe whether the pressure drops, thus determining whether the bearing seal is leaking, improving testing accuracy and precision. The device is durable and has low maintenance costs, improving reliability and practicality. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure of this utility model from below; Figure 3 This is a partial cross-sectional view of the base and turntable of this utility model. Figure 4 This is a partial cross-sectional structural diagram of the detection device of this utility model; Figure 5 This is a partial cross-sectional structural diagram of the electric push rod and detection cover device of this utility model; In the diagram: 1. Base; 2. Shaft; 3. Turntable; 4. Detection device; 401. Detection plate; 402. Detection port; 403. Bearing seat; 404. Outer shell; 405. Positioning post one; 406. Airbag one; 407. Airbag two; 408. Pressing plate; 409. Air guide block; 410. Air pipe; 5. Handle; 6. Crossbeam; 7. Control panel; 8. Electric push rod; 9. Detection cover device; 901. Cover shell; 902. Positioning post two; 903. Rubber pad; 904. Pressure gauge; 905. Pressure pump; 10. Support leg; 11. Caster wheel. Detailed Implementation

[0014] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0015] like Figure 1-5As shown, this utility model provides a technical solution: a tapered roller bearing sealing performance testing device, including a base 1, a rotating shaft 2 rotatably connected to a through hole at the top of the base 1, a crossbeam 6 fixedly installed at the top of the base 1, an electric push rod 8 fixedly installed at the bottom of the protruding part of the crossbeam 6, a testing cover device 9 fixedly installed at the bottom of the electric push rod 8, the testing cover device 9 including a cover shell 901, a rubber pad 903 fixedly installed on the inner wall of the cover shell 901, a positioning post 902 fixedly installed at the top inside the cover shell 901, a pressure pump 905 fixedly installed on the outer wall of the cover shell 901, and a pressure gauge 904 fixedly installed at the top of the cover shell 901. The combination of the crossbeam 6 and the electric push rod 8 realizes the automatic lifting and lowering of the testing cover device 9, which can accurately control the contact and separation of the cover shell 901 and the base 1. The positioning post 902 at the top inside the cover shell 901 can accurately cooperate with the testing device 4 on the bearing or the base 1 to ensure the sealing performance of the cover. When the housing 901 is closed, it is completely aligned with the sealing surface of the bearing, avoiding poor local sealing caused by misalignment. The housing 901 integrates a pressure pump 905 and a pressure gauge 904, allowing workers to intuitively read pressure changes through the pressure gauge 904, simplifying the operation process. The buffering effect of the rubber pad 903 and the smooth driving force of the electric push rod 8 reduce the impact on the bearing during the closing process. A control panel 7 is fixedly installed on one side of the crossbeam 6. The crossbeam 6 has an L-shaped design, and the top of its inner wall is fixed to the top of the electric push rod 8. The control panel 7 can realize the automated linkage of the detection process and can start and pause the device. A support foot 10 is fixedly installed at the bottom of the base 1, and a caster wheel 11 is fixedly installed at the bottom of the support foot 10. The flexible steering characteristics of the caster wheel 11 allow the device to be easily moved in the workshop without relying on lifting equipment or multiple people to carry it, greatly improving the convenience of movement and adapting to various layout scenarios.

[0016] A turntable 3 is fixedly installed on the top of the rotating shaft 2. Two detection devices 4 are fixedly installed on the top of the turntable 3. Four handles 5 are fixedly installed on the outer wall of the turntable 3. The included angle between two adjacent handles 5 is 90 degrees. After the detection device 4 has finished its detection, the other detection device 4 can be rotated to the area to be detected, which achieves balanced force, makes the rotation more effortless and stable, and is flexible in operation, adapting to the needs of multiple scenarios. The detection device 4 includes a detection plate 401. A detection port 402 is fixedly installed inside the detection plate 401 to monitor the sealing status in real time, improve the intuitiveness of the detection, and directly monitor the sealing details of the bearing in real time during the detection process through this port, further improving the practicality and accuracy of the device.

[0017] A bearing seat 403 is fixedly installed on the top of the detection plate 401. A housing 404 is fixedly installed on the outer wall of the bearing seat 403. An airbag 406 is fixedly installed on the top of the bearing seat 403. A positioning post 405 is fixedly installed on the top of the bearing seat 403. An airbag 407 is fixedly installed on the outer wall of the positioning post 405. Two air guide blocks 409 are provided on the top of the bearing seat 403. Several through holes are opened at the bottom of the inner wall of the bearing seat 403, and the through holes are connected to the detection port 402 in the middle of the detection plate 401. The through holes can serve as ventilation channels. If gas seeps in during the detection process, the through holes assist the structure required for the detection and improve the quality of the detection. Two air pipes 410 are fixedly installed at both ends of the air guide block 409. The two air pipes 410 are fixedly connected to the inner wall of the airbag 406 and the outer wall of the airbag 407, respectively. A pressing plate 408 is fixedly installed on the top of the air guide block 409.

[0018] The working principle of this utility model is as follows: When the bearing needs to be tested for sealing, the bearing is placed in the testing device 4, and the start button on the control panel 7 at the crossbeam 6 is pressed. At this time, the testing disc 401, together with the testing port 402, can determine whether there is any air leakage when testing the bearing. If gas passes through the bearing, the gas will flow from the through hole in the bearing seat 403 to the testing port 402, and the testing port 402 will detect the gas, thereby determining whether there is any air leakage in the bearing. Installing a housing 404 on the outer wall of the bearing seat 403 can prevent foreign objects or air from entering, effectively preventing air from entering the interior and ensuring the smoothness of the testing process. Fixing a positioning post 405 on the top of the bearing seat 403 can fix the inner wall of the bearing, achieving the positioning effect. Installing airbags 406 and 407 on the outer wall of the bearing and the inner wall of the housing 404 can achieve the positioning and fixing of bearings of different sizes. When the bearing is placed in the bearing seat 403, the bottom of the bearing first contacts the pressing disc 408, and then... The pressure plate 408 presses down on the air guide block 409, causing the gas inside the air guide block 409 to be forced through the air pipe 410 into the air bladder 406 and the second air bladder 407. This causes the air bladder 406 and the second air bladder 407 to expand, which in turn fixes the bearing, thus enabling the positioning of bearings of different specifications. At this time, the electric push rod 8 installed at the crossbeam 6 begins to move downward. The diameter of the cover 901 is the same as the diameter of the outer shell 404 inside the detection device 4, which can cooperate to prevent air from entering. The rubber gasket 903 installed on the inner wall of the cover 901 can further enhance the sealing effect, providing cushioning and adaptability, while also avoiding hard contact that could cause wear and improving service life. A pressure pump 905 is fixedly installed on the outer wall of the cover 901. The pressure pump 905 can provide the pressure medium required for the test, and the pressure gauge 904 is used to observe whether the pressure drops to determine whether the bearing seal is leaking. When the test is completed, the next bearing part can be tested by rotating the handle 5 at the turntable 3.

[0019] 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.

[0020] 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 device for testing the sealing performance of a tapered roller bearing, comprising a base (1), characterized in that: A rotating shaft (2) is rotatably connected to a through hole at the top of the base (1). A turntable (3) is fixedly mounted on the top of the rotating shaft (2). Two detection devices (4) are fixedly mounted on the top of the turntable (3). Each detection device (4) includes a detection plate (401). A detection port (402) is fixedly mounted inside the detection plate (401). A bearing seat (403) is fixedly mounted on the top of the detection plate (401). A shell (404) is fixedly mounted on the outer wall of the bearing seat (403). A bearing seat (403) is fixedly mounted on the top of the bearing seat (403). There is an airbag one (406), a positioning post one (405) is fixedly installed on the top of the bearing seat (403), an airbag two (407) is fixedly installed on the outer wall of the positioning post one (405), two air guide blocks (409) are provided on the top of the bearing seat (403), two air tubes (410) are fixedly installed at both ends of the air guide block (409), the two air tubes (410) are fixedly connected to the inner wall of the airbag one (406) and the outer wall of the airbag two (407) respectively, and a pressing plate (408) is fixedly installed on the top of the air guide block (409).

2. The device for detecting sealing performance of a tapered roller bearing according to claim 1, characterized in that: A crossbeam (6) is fixedly installed on the top of the base (1). An electric push rod (8) is fixedly installed at the bottom of the protruding part of the crossbeam (6). A detection cover device (9) is fixedly installed at the bottom of the electric push rod (8). The detection cover device (9) includes a cover shell (901). A rubber pad (903) is fixedly installed on the inner wall of the cover shell (901). A positioning column (902) is fixedly installed on the top of the cover shell (901). A pressure pump (905) is fixedly installed on the outer wall of the cover shell (901). A pressure gauge (904) is fixedly installed on the top of the cover shell (901).

3. The device for detecting sealing performance of a tapered roller bearing according to claim 2, characterized in that: A control panel (7) is fixedly installed on one side of the crossbeam (6). The crossbeam (6) is L-shaped and the top of its inner wall is fixed to the top of the electric push rod (8).

4. The device for detecting sealing performance of a tapered roller bearing according to claim 1, characterized in that: The base (1) is fixedly installed with a support foot (10) at the bottom, and the support foot (10) is fixedly installed with a caster wheel (11) at the bottom.

5. The device for detecting sealing performance of a tapered roller bearing according to claim 1, characterized in that: The bottom of the inner wall of the bearing housing (403) is provided with several through holes, and the through holes are connected to the detection port (402) in the middle of the detection plate (401).

6. The tapered roller bearing sealing performance testing device according to claim 1, characterized in that: The turntable (3) has four handles (5) fixedly installed on its outer wall, and the included angle between two adjacent handles (5) is ninety degrees.

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