CN103291741A - High-temperature-resistant and long-life truck hub bearing unit - Google Patents
High-temperature-resistant and long-life truck hub bearing unit Download PDFInfo
- Publication number
- CN103291741A CN103291741A CN2013101883036A CN201310188303A CN103291741A CN 103291741 A CN103291741 A CN 103291741A CN 2013101883036 A CN2013101883036 A CN 2013101883036A CN 201310188303 A CN201310188303 A CN 201310188303A CN 103291741 A CN103291741 A CN 103291741A
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- CN
- China
- Prior art keywords
- flange plate
- bearings
- sealing
- ring
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
- F16C19/525—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to temperature and heat, e.g. insulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/726—Sealings with means to vent the interior of the bearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C37/00—Cooling of bearings
- F16C37/007—Cooling of bearings of rolling bearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention provides a high-temperature-resistant and long-life truck hub bearing unit. The truck hub bearing unit comprises two bearings, a flange plate, a clamping ring, sealing rings and sealing devices, wherein a small hole is formed in the flange plate; the sealing rings are arranged inside the two bearings; the sealing devices are arranged in the middles of outer rings of the two bearings; each sealing device consists of a spring, a sealing plug, a gasket and a sealing sleeve; each sealing sleeve is annular and is wound on the outer ring of the corresponding bearing; each gasket is sleeved on the corresponding sealing plug; a hole in each gasket is communicated with the small hole in the flange plate. In the running process of a vehicle, the internal temperature of hub bearings rises, the pressure increases, the springs are pushed to move the sealing plugs upwards, and gas is discharged through the small hole in the flange plate, so that the internal temperature of the bearings drops, and the pressure decreases. Through the cyclic operation, in the running process of the vehicle, the temperature and the pressure are limited in a certain range, the service lives of the hub bearings are prolonged, and the safety and the reliability are improved.
Description
Technical field
The present invention relates to a kind of hub-bearing unit, specifically a kind of truck hub bearing unit of anti-high-temperature long-life life.
Background technique
Now, Freight Transport is more and more important, and transport power is also increasing, and vehicle increases swift and violent, also becomes more and more important as the hub bearing of one of lorry safety component.Country truck hub bearing working life by ten thousand kilometers of 200,000 kilometers speed-raisings to 50 (developed country even bring up to 1,000,000 kilometers), reliability requirement reaches 99%, proposes as a kind of strong basis project.
Freight car bearing is bigger because of bearing load, and stream time is long, therefore bearing heats up easily, thereby bearing clearance is reduced, and prefastening load strengthens, and makes pivot friction power strengthen, aggravated bearing temperature rise, thereby cause the bearing premature fatigue to peel off, also may make the rolling element of bearing inside and lasso generation bonding, make bearing failure.
Summary of the invention
In order to address this problem, prolong the working life of hub bearing, improve safety reliability, the invention provides a kind of truck hub bearing unit of anti-high-temperature long-life life, at the inner seal ring of installing of two row bearings, the seal arrangement of being made up of spring, sealing plug, packing ring and stuffing box gland is set in the middle of the outer ring.When automobile in the process of moving, the hub bearing inside temperature raises, pressure increases, promoting spring moves up sealing plug, the aperture that gas is offered by flange plate emits, thereby reduce the bearing inside temperature and reduce pressure, so circulation guarantees that automobile temperature pressure in running limits within the specific limits.
For realizing above-mentioned purpose, technological scheme of the present invention is: the truck hub bearing unit comprises two bearings, flange plate, snap ring, seal ring and seal arrangements; Offer aperture on the flange plate, at the inner seal ring of installing of two single row bearings, fixedly be fitted in the flange plate by snap ring then, in the middle of two row bearing outer rings seal arrangement is set, seal arrangement is made up of spring, sealing plug, packing ring and stuffing box gland, wherein, stuffing box gland is annular, be looped around on the bearing outer ring, gasket sleeve is on sealing plug, and the hole of packing ring communicates with the aperture of flange plate; Packing ring can be connected by screw with stuffing box gland.When automobile in the process of moving, the hub bearing inside temperature raises, pressure increases, promoting spring moves up sealing plug, the aperture that gas is offered by flange plate emits, thereby reduce the bearing inside temperature and reduce pressure, so circulation, guarantee that automobile temperature pressure in running limits within the specific limits, prevented because high temperature makes the rolling element of bearing inside and lasso take place bonding, also prevented from reaching the working life that prolongs bearing and the effect that improves safety reliability because bearing inside temperature rising pressure increases the bearing seal inefficacy that causes.
Description of drawings
Fig. 1 is cross-sectional view of the present invention.
Among the figure: 1, inner ring, 2, retainer, 3, the outer ring, 4, flange plate, 5, spring, 6, sealing plug, 7, stuffing box gland, 8, roller, 9, seal ring, 10, snap ring.
Embodiment
Embodiment as shown in Figure 1, the truck hub bearing unit comprises two bearings, flange plate (4), snap ring (10), seal ring (9) and seal arrangement; Bearing adopts single row bearing, comprises inner ring (1), retainer (2), outer ring (3) and roller (8); Offer an aperture on the flange plate, at the inner seal ring (9) of installing of two single row bearings, fixedly be fitted in the flange plate by snap ring then, the seal arrangement of being made up of spring (5), sealing plug (6), packing ring and stuffing box gland (7) is set in the middle of two row bearing outer rings, stuffing box gland is annular, is looped around on the bearing outer ring, and gasket sleeve is on sealing plug, be connected by screw with stuffing box gland, the hole of packing ring communicates with the aperture of flange plate.Automobile in the process of moving, the hub bearing inside temperature raises, pressure increases, promoting spring moves up sealing plug, the aperture that gas is offered by flange plate emits, and reduces pressure thereby reduce the bearing inside temperature, so circulation, guarantee that automobile temperature pressure restriction in running prevents within the specific limits because high temperature makes the rolling element of bearing inside and lasso take place bonding.
Claims (2)
1. the truck hub bearing unit comprises two bearings, flange plate, snap ring, seal ring and seal arrangements; It is characterized in that, offer aperture on the flange plate, at the inner seal ring of installing of two single row bearings, fixedly be fitted in the flange plate by snap ring, in the middle of two row bearing outer rings seal arrangement be set, seal arrangement is made up of spring, sealing plug, packing ring and stuffing box gland, stuffing box gland is annular, be looped around on the bearing outer ring, gasket sleeve is on sealing plug, and the hole of packing ring communicates with the aperture of flange plate; Automobile in the process of moving, the hub bearing inside temperature raises, pressure increases, promoting spring moves up sealing plug, the aperture that gas is offered by flange plate emits, reduce the bearing inside temperature and reduce pressure, so circulation guarantees that automobile temperature pressure in running limits within the specific limits.
2. truck hub bearing unit as claimed in claim 1 is characterized in that, the packing ring of described seal arrangement is connected by screw with stuffing box gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101883036A CN103291741A (en) | 2013-05-21 | 2013-05-21 | High-temperature-resistant and long-life truck hub bearing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101883036A CN103291741A (en) | 2013-05-21 | 2013-05-21 | High-temperature-resistant and long-life truck hub bearing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103291741A true CN103291741A (en) | 2013-09-11 |
Family
ID=49093123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101883036A Pending CN103291741A (en) | 2013-05-21 | 2013-05-21 | High-temperature-resistant and long-life truck hub bearing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103291741A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020176061A1 (en) * | 2001-05-25 | 2002-11-28 | Canon Kabushiki Kaisha | Hydrostatic bearing and stage apparatus using same |
| CN201679956U (en) * | 2010-01-20 | 2010-12-22 | 江西铜业股份有限公司 | Air-exhaust dustproof sealing device for bearing block |
| JP2013015209A (en) * | 2011-07-06 | 2013-01-24 | Jtekt Corp | Rolling bearing |
| CN202926893U (en) * | 2012-10-23 | 2013-05-08 | 中色科技股份有限公司 | Bearing lubrication structure of roller shaft |
-
2013
- 2013-05-21 CN CN2013101883036A patent/CN103291741A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020176061A1 (en) * | 2001-05-25 | 2002-11-28 | Canon Kabushiki Kaisha | Hydrostatic bearing and stage apparatus using same |
| CN201679956U (en) * | 2010-01-20 | 2010-12-22 | 江西铜业股份有限公司 | Air-exhaust dustproof sealing device for bearing block |
| JP2013015209A (en) * | 2011-07-06 | 2013-01-24 | Jtekt Corp | Rolling bearing |
| CN202926893U (en) * | 2012-10-23 | 2013-05-08 | 中色科技股份有限公司 | Bearing lubrication structure of roller shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 441004, Xinguang Road, automobile industrial park, Xiangyang hi tech Industrial Development Zone, Hubei 7, China Applicant after: The new torch Science and Technology Ltd. in Hubei Address before: 441004, Xinguang Road, automobile industrial park, Xiangyang hi tech Industrial Development Zone, Hubei 7, China Applicant before: Hubei New Torch Science & Technology Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: HUBEI NEW TORCH SCIENCE + TECHNOLOGY CO., LTD. TO: HUBEI NEW TORCH TECHNOLOGY CO., LTD. |
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| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130911 |