CN210347008U - Test device for external sealing air tightness of hub bearing - Google Patents
Test device for external sealing air tightness of hub bearing Download PDFInfo
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- CN210347008U CN210347008U CN201920881267.4U CN201920881267U CN210347008U CN 210347008 U CN210347008 U CN 210347008U CN 201920881267 U CN201920881267 U CN 201920881267U CN 210347008 U CN210347008 U CN 210347008U
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- closing plate
- sealing
- outer lane
- hub bearing
- test device
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Abstract
The utility model relates to a test device of outer sealing gas tightness of wheel hub bearing, mainly include experimental sealing member, the inner circle, the outer lane, closing plate and flange dish, inner circle and outer lane all overlap on the flange dish, be equipped with experimental sealing member in the outer lane and between the flange dish, the terminal surface and the closing plate contact cooperation of inner circle and outer lane, it is fixed to be connected through the pretension screw rod between outer lane and the closing plate, the terminal surface of outer lane is equipped with end face seal I with the contact department of closing plate, the terminal surface of inner circle is equipped with end face seal III with the contact department of closing plate, be connected with the adapter on the closing plate, the adapter outside is connected with the. The utility model discloses profitable effect is: the utility model discloses the device can be directly perceived effectively must detect wheel hub bearing external seal gas tightness to can give reasonable evaluation, prevent not having through sealed product flow direction market of verifying, and have the risk of sealed inefficacy.
Description
Technical Field
The utility model relates to a test device structure, especially a test device of wheel hub bearing external seal gas tightness.
Background
The main function of the hub bearing is to bear load and provide precise guidance for the rotation of the hub, and the hub bearing bears axial load and radial load and is a very important part. The sealing of the hub bearing is to prevent dust, water, and other debris from entering the bearing and to prevent lubricant loss. If the sealing ability is insufficient, problems of leakage of the grease inside the product or intrusion of outside muddy water may occur.
Disclosure of Invention
The utility model discloses solve above-mentioned prior art's shortcoming, provide a simple structure, convenient operation's test device of wheel hub bearing external seal gas tightness.
The utility model provides a technical scheme that its technical problem adopted: the test device for the outer sealing air tightness of the hub bearing mainly comprises a test sealing element, an inner ring, an outer ring, a sealing plate and a flange plate, wherein the inner ring and the outer ring are sleeved on the flange plate, the test sealing element is arranged between the inner ring and the flange plate, the end surfaces of the inner ring and the outer ring are in contact fit with the sealing plate, the outer ring and the sealing plate are fixedly connected through a pre-tightening screw rod, an end surface seal I is arranged at the contact position of the end surface of the outer ring and the sealing plate, an end surface seal III is arranged at the contact position of the end surface of the inner ring and the sealing plate, an adapter is connected onto.
The inner ring is located inside the outer ring, the end face, in contact with the sealing plate, of the inner ring is lower than the end face, in contact with the sealing plate, of the outer ring, and 2 step faces are arranged on the sealing plate and are respectively attached to the end face seal I of the outer ring and the end face seal III of the inner ring.
The sealing plate is characterized in that a threaded hole is formed in the circumferential direction of the outer ring, a through hole is formed in the circumferential direction of the sealing plate, and the pre-tightening screw penetrates through the through hole of the sealing plate and is in threaded connection with the threaded hole of the outer ring.
The sealing plate is provided with a threaded hole, and the thread of the adapter is in threaded connection with the threaded hole of the sealing plate.
And the contact part of the adapter and the sealing plate is provided with an end face seal II.
The utility model discloses profitable effect is: the utility model discloses the device can be directly perceived effectively must detect wheel hub bearing external seal gas tightness to can give reasonable evaluation, prevent not having through sealed product flow direction market of verifying, and have the risk of sealed inefficacy.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Description of reference numerals: pretension screw rod 1, barometer 2, end face seal I3, experimental sealing member 4, adapter 5, end face seal II 6, trachea 7, end face seal III 8, closing plate 9, inner circle 10, outer lane 11, ring flange 12.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in the figure, the test device for the outer sealing airtightness of the hub bearing mainly comprises a test sealing element 4, an inner ring 10, an outer ring 11, a sealing plate 9 and a flange plate 12, wherein the inner ring 10 and the outer ring 11 are both sleeved on the flange plate 12, the test sealing element 4 is arranged between the inner ring 11 and the flange plate 12, the end surfaces of the inner ring 10 and the outer ring 11 are in contact fit with the sealing plate 9, the outer ring 11 and the sealing plate 9 are fixedly connected through a pre-tightening screw rod 1, a threaded hole is formed in the circumferential direction of the outer ring 11, a through hole is formed in the circumferential direction of the sealing plate 9, and the pre-tightening screw rod 1 penetrates through the. The contact department of the terminal surface of outer lane 11 and closing plate 9 is equipped with end face seal I3, and the terminal surface of inner circle 10 is equipped with end face seal III 8 with closing plate 9's contact department, and inner circle 10 is located the inside of outer lane 11, and the terminal surface of inner circle 10 and closing plate 9 contact is less than the terminal surface of outer lane 11 and closing plate 9 contact, is equipped with 2 step faces on the closing plate 9, laminates mutually with end face seal I3 of outer lane 11 and end face seal III 8 of inner circle 10 respectively. The adapter 5 is connected to the sealing plate 9, a threaded hole is formed in the sealing plate 9, and threads of the adapter 5 are connected with threads of the threaded hole of the sealing plate 9. And an end face seal II 6 is arranged at the contact part of the adapter 5 and the sealing plate 9. The outer side of the adapter 5 is connected with an air pipe (7), and the air pipe 7 is provided with a barometer 2.
Hub bearing outer lane 11 fills up end face seal I3 and end face seal III 8 respectively with 10 terminal surfaces departments of inner circle, then covers into closing plate 9, and closing plate 9 is equipped with 2 step faces respectively, laminates with end face seal I3 and end face seal III 8 respectively. Through holes are arranged in the circumferential direction of the sealing plate 9, the pre-tightening screw rod 1 is adopted to penetrate and be screwed into a threaded hole of the outer ring 11, and the pre-tightening screw rod 1 is screwed down to enable rubber of the end face seal I3 and the end face seal III 8 to generate compression deformation to be tightly attached between metal parts, so that the sealing effect on the inner portion of the hub bearing is achieved. Offer a screw hole on closing plate 9, adopt take screwed adapter 5 to fill up end face seal II 6 at 5 terminal surfaces of adapter, then screw in the screw hole of closing plate 9 together, screw up. The outer side of the adapter 5 is connected with an air pipe 7, and the air pipe 7 is provided with a barometer 2 for monitoring the air pressure inside the bearing.
After the installation is completed, a water tank is prepared, the whole device is placed into the water tank, purified water is filled into the water tank, and the whole device is kept immersed. And (3) inflating the test bearing by adopting an external air pressure pump, monitoring inflation pressure, and observing the position of bubbles generated when the test device in the water tank leaks.
The specific location of the test seal 4 where the leak occurred was determined based on the observed location of the bubble occurrence. The resistance (airtightness) of the test seal 4 to the gas pressure is determined based on the monitored gas pressure value, for example, when leakage occurs at a gas inflation pressure of 0.3MPa, the airtightness pressure of the test seal 4 is 0.3 MPa.
The device can realize the air tightness test of the sealing ring in an integrity mode, and the sealing performance and the leakage resistance of the outer sealing of the hub bearing are evaluated through the test device, so that the device is more visual and effective.
In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.
Claims (5)
1. The utility model provides a test device of wheel hub bearing external seal gas tightness, mainly includes experimental sealing member (4), inner circle (10), outer lane (11), closing plate (9) and flange dish (12), characterized by: inner circle (10) and outer lane (11) all overlap on ring flange (12), be equipped with experimental sealing member (4) in outer lane (11) and between ring flange (12), the terminal surface and closing plate (9) contact cooperation of inner circle (10) and outer lane (11), it is fixed to be connected through pretension screw rod (1) between outer lane (11) and closing plate (9), the terminal surface of outer lane (11) is equipped with end face seal I (3) with the contact department of closing plate (9), the terminal surface of inner circle (10) is equipped with end face seal III (8) with the contact department of closing plate (9), be connected with adapter (5) on closing plate (9), adapter (5) outside is connected with trachea (7), be equipped with barometer (2) on trachea (7).
2. The test device for the external sealing airtightness of the hub bearing according to claim 1, is characterized in that: the inner ring (10) is located inside the outer ring (11), the end face, contacting the sealing plate (9), of the inner ring (10) is lower than the end face, contacting the sealing plate (9), of the outer ring (11), 2 step faces are arranged on the sealing plate (9), and the step faces are attached to the end face seal I (3) of the outer ring (11) and the end face seal III (8) of the inner ring (10) respectively.
3. The test device for the external sealing airtightness of the hub bearing according to claim 1 or 2, is characterized in that: the sealing structure is characterized in that threaded holes are formed in the circumferential direction of the outer ring (11), through holes are formed in the circumferential direction of the sealing plate (9), and the pre-tightening screw (1) penetrates through the through holes of the sealing plate (9) to be in threaded connection with the threaded holes of the outer ring (11).
4. The test device for the external sealing airtightness of the hub bearing according to claim 3, is characterized in that: and a threaded hole is formed in the sealing plate (9), and the thread of the adapter (5) is in threaded connection with the threaded hole of the sealing plate (9).
5. The test device for the external sealing airtightness of the hub bearing according to claim 4, is characterized in that: and an end face seal II (6) is arranged at the contact position of the adapter (5) and the sealing plate (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920881267.4U CN210347008U (en) | 2019-06-12 | 2019-06-12 | Test device for external sealing air tightness of hub bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920881267.4U CN210347008U (en) | 2019-06-12 | 2019-06-12 | Test device for external sealing air tightness of hub bearing |
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| CN210347008U true CN210347008U (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920881267.4U Active CN210347008U (en) | 2019-06-12 | 2019-06-12 | Test device for external sealing air tightness of hub bearing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220650A (en) * | 2019-06-12 | 2019-09-10 | 浙江万向精工有限公司 | A kind of experimental rig of hub bearing external seal air-tightness |
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2019
- 2019-06-12 CN CN201920881267.4U patent/CN210347008U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220650A (en) * | 2019-06-12 | 2019-09-10 | 浙江万向精工有限公司 | A kind of experimental rig of hub bearing external seal air-tightness |
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