CN105065676A - Wheel hub unit - Google Patents
Wheel hub unit Download PDFInfo
- Publication number
- CN105065676A CN105065676A CN201510454773.1A CN201510454773A CN105065676A CN 105065676 A CN105065676 A CN 105065676A CN 201510454773 A CN201510454773 A CN 201510454773A CN 105065676 A CN105065676 A CN 105065676A
- Authority
- CN
- China
- Prior art keywords
- seal ring
- sealing
- oil
- hub body
- ring
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 100
- 239000000314 lubricant Substances 0.000 claims description 29
- 239000006071 cream Substances 0.000 claims description 22
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 abstract 3
- 239000000945 filler Substances 0.000 abstract 2
- 239000010687 lubricating oil Substances 0.000 abstract 2
- 230000002035 prolonged effect Effects 0.000 abstract 2
- 238000005461 lubrication Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000004519 grease Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
Classifications
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
-
- 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
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Of Bearings (AREA)
Abstract
The invention discloses a wheel hub unit. The wheel hub unit comprises a wheel hub body, a shaft sleeve and a bearing. A first sealing ring and a second sealing ring are arranged between the sealing face of the wheel hub body and the sealing face of the shaft sleeve. The inner side of the first sealing ring is a sealing zone and the outer side of the second sealing ring is an atmosphere zone in the axis direction. An oil-storing cavity is formed among the sealing face of the wheel hub body, the sealing face of the shaft sleeve, the first sealing ring and the second sealing ring. An oil filler hole is formed in the wheel hub body. A screw-plug is arranged on the oil filler hole. According to the oil fluid microcosmic motion principle, the functional life of lubricating oil is prolonged; sealing lips of the sealing rings can maintain lubricating oil films; even through one sealing ring is invalid, the other sealing ring can still play a sealing function, so that the service environment of the sealing rings is improved, the service life of the sealing rings is prolonged and the sealing rings are convenient to disassemble.
Description
Technical field
The present invention relates to vehicle hub technical field, particularly relate to a kind of hub of its bearing of oil lubrication.
Background technique
For the bearing in hub, usually adopt oil lubrication and fat skidding two kinds of modes.The sealing configuration of grease lubrication is relatively simple, but when safeguarding, needs change bearing or bearing is unloaded down.Oil lubrication is safeguarded relatively simple, and only lubricant oil need be released and again annotate, this advantage, makes oil lubrication become the main flow direction of the vehicle such as truck, passenger vehicle hub.But oil lubrication can be subject to the impact of the composite factors such as temperature, heavily loaded load, impulsive load, and easy leakage of oil, thus has higher requirement to sealing configuration.
Usually use oil sealing to seal lubricant oil in prior art, in order to ensure sealing effect, comparatively generally adopt double oil seal structure, before assembly, its lip place all scribbles lubricating grease for inner oil seal and outer oil seal.In use, owing to there is lubricant oil inside inner oil seal, therefore its working state is good, but under outer oil seal is chronically exposed to physical environment, oil film will vapor away in the short time, and oil film cannot be supplemented in time, make outer oil seal be in dry condition, cause outer oil seal premature failure.Therefore, be shorter than the inner oil seal life-span with the outer oil seal life-span under material, in fact, dual-oil seal sealing configuration only has inner oil seal can effectively oil resistance, and the oil sealing effect of outer oil seal is very limited.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of hub, to improve the motive sealing effect to lubricant oil.
For solving the problems of the technologies described above, technological scheme of the present invention is: hub, comprise: hub body and run through the axle sleeve of described hub body, described axle sleeve is installed in described hub body by bearing, the first seal ring and the second seal ring is provided with between the sealing surface of described hub body and the sealing surface of described axle sleeve, in the axial direction, the inner side of described first seal ring is sealing area, and the outside of described second seal ring is atmosphere zone; The sealing surface of described hub body, the sealing surface of described axle sleeve and the shoe cream room formed between described first seal ring and described second seal ring for holding lubricant oil, described hub body is provided with for the oil hole to oiling in described shoe cream room, and described oil hole is provided with plug screw.
Wherein, described axle sleeve comprises the sleeve body and oil sealing seat ring that are fixedly set-located, and the outer circumferential face of described oil sealing seat ring is the sealing surface contacted with described first seal ring.
Wherein, the outer circumferential face of described oil sealing seat ring is provided with outer radial flange collar, and the inner peripheral surface of described oil sealing seat ring is provided with interior radial flange collar; Described outer radial flange collar catches on described first seal ring from described sealing area side, and described interior radial flange collar is provided with the tapped hole for dismantling oil sealing seat ring.
After have employed technique scheme, the invention has the beneficial effects as follows:
1) owing to devising independently shoe cream room, the special lubricant oil of seal ring can be injected in shoe cream room, lubricant oil in shoe cream room is not by the power friction shear action that mechanical motion produces, its polymer characteristics is stablized, macromolecular chain is complete, not cracked, lubricant oil functional lifetime can improve 3 ~ 7 times.
2) for the first seal ring being positioned at sealing area side, have the lubricant oil for bearing lubrication inside it, there is the lubricant oil in shoe cream room in outside, and thus all there is lubricant oil its both sides, is beneficial to the maintenance of lubricant film; For the second seal ring being positioned at atmosphere zone side, scribble lubricating grease before the assembling of its lip place, there is the lubricant oil in shoe cream room inner side, is also conducive to the maintenance of lubricant film, simultaneously, because sealing area is operating area, temperature is high, pressure is large, and shoe cream room is non-operating area, temperature is low, pressure is little, thus the pressure making the second seal ring be subject to is less than the pressure that the first seal ring is subject to, so in fact the second seal ring have also obtained the reduced pressure sealing effect of the first seal ring.Both combinationally use, and working life can improve 5 ~ 7 times.
3) the present invention is from fluid microscopic motion principle, improve the functional lifetime of lubricant oil, simultaneously, seal ring lip place is enable to maintain lubricant film, even if a seal ring fails, another seal ring still can play seal action, thus fundamentally improves the Environmental Conditions of seal ring, improves the working life of seal ring.
4) axle sleeve split is designed to sleeve body and oil sealing seat ring, the oil sealing seat ring being in sealing surface place can be made to adopt more wear-resisting material, and sleeve body then can adopt common material, thus is conducive to saving cost.Moreover, by arranging outer radial flange collar at the outer circumferential face of oil sealing seat ring, at the inner peripheral surface of oil sealing seat ring, interior radial flange collar is set, outer radial flange collar catches on described first seal ring from sealing area side, interior radial flange collar arranges tapped hole, during dismounting, the tapped hole of radial flange collar in screw or bolt are screwed in, thus the first seal ring and the second seal ring can be dismantled easily.
Accompanying drawing explanation
Fig. 1 is the stereogram of the embodiment of the present invention one;
Fig. 2 is the sectional view of Fig. 1;
Fig. 3 is A place close-up schematic view in Fig. 2;
Fig. 4 is the sectional view of the embodiment of the present invention two;
Fig. 5 is the B place close-up schematic view of Fig. 4;
Fig. 6 is the sectional view (omitting lower half portion in figure) of oil sealing seat ring in Fig. 4;
In figure: 101-hub body, 102-axle sleeve, 1021-sleeve body, 1022-oil sealing seat ring, 103-bearing, 104-first seal ring, 105-second seal ring, 106-shoe cream room, 107-oil hole, 108-plug screw, 109-the 3rd seal ring, 110-the 4th seal ring;
201-hub body, 202-axle sleeve, 2021-sleeve body, 2022-oil sealing seat ring, 2023-outer radial flange collar, radial flange collar in 2024-, 2025-tapped hole, 203-bearing, 204-first seal ring, 205-second seal ring, 206-shoe cream room, 207-oil hole, 208-plug screw, 210-the 4th seal ring;
E-sealing area, F-atmosphere zone.
Embodiment
In order to make object of the present invention, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment one
As Fig. 1 to Fig. 3 jointly shown in, a kind of hub, axle sleeve 102 runs through hub body 101, and be installed in hub body 101 by bearing 103, the first seal ring 104 and the second seal ring 105 is provided with between the sealing surface of hub body 101 and the sealing surface of axle sleeve 102, in the axial direction, the inner side of the first seal ring 104 is sealing area E, and the outside of the second seal ring 105 is atmosphere zone F.
The sealing surface of hub body 101, the sealing surface of axle sleeve 102 and form shoe cream room 106 between the first seal ring 104 and the second seal ring 105, hub body 101 is provided with for the oil hole 107 to oiling in shoe cream room 106, and oil hole 107 is provided with plug screw 108.
Owing to devising independently shoe cream room 106, the special lubricant oil of seal ring can be injected in shoe cream room 106, lubricant oil in shoe cream room 106 is not by the power friction shear action that mechanical motion produces, its polymer characteristics is stablized, macromolecular chain is complete, not cracked, lubricant oil functional lifetime can improve 3 ~ 7 times.
For the first seal ring 104 being positioned at sealing area side, have the lubricant oil for bearing lubrication inside it, there is the lubricant oil in shoe cream room 106 in outside, and thus all there is lubricant oil its both sides, is beneficial to the maintenance of lubricant film; For the second seal ring 105 being positioned at atmosphere zone side; lubricating grease is scribbled before the assembling of its lip place; there is the lubricant oil in shoe cream room 106 inner side, is also conducive to the maintenance of lubricant film, and the second seal ring 105 is also subject to the protection of the reduced pressure sealing principle that the first seal ring 104 is formed simultaneously.Both combinationally use, and working life can improve 5 ~ 7 times.
In order to cost-saving, above-mentioned axle sleeve 102 comprises the sleeve body 1021 and oil sealing seat ring 1022 that are fixedly set-located, the outer circumferential face of oil sealing seat ring 1022 is the sealing surfaces contacted with the first seal ring 104, axle sleeve 102 split is designed to sleeve body 1021 and oil sealing seat ring 1022, the oil sealing seat ring 1022 being in sealing surface place can be made to adopt more wear-resisting material, and sleeve body 1021 then can adopt common material.
Seal reliably in order to ensure between oil sealing seat ring 1022 and sleeve body 1021, between oil sealing seat ring 1022 and sleeve body 1021, be provided with the 3rd seal ring 109.
In addition, between the first seal ring 104 and hub body 101, be provided with the 4th seal ring 110, achieve the static sealing between the first seal ring 104 and hub body 101, can high pressure be born, and ensure sealing reliably.
When assembling, 3rd seal ring 109 is preset on sleeve body 1021,4th seal ring 110 is preset in hub body 101 simultaneously, then oil sealing seat ring 1022, first seal ring 104 and the second seal ring 105 are loaded in hub body 101, inject lubricant oil by oil hole 107, plug screw 108 is tightened after being coated with sealer.
Embodiment two
As Fig. 4 to Fig. 6 jointly shown in, a kind of hub, axle sleeve 202 runs through hub body 201, and be installed in hub body 201 by bearing 203, the first seal ring 204 and the second seal ring 205 is provided with between the sealing surface of hub body 201 and the sealing surface of axle sleeve 202, in the axial direction, the inner side of the first seal ring 204 is sealing area E, and the outside of the second seal ring 205 is atmosphere zone F.
The sealing surface of hub body 201, the sealing surface of axle sleeve 202 and form shoe cream room 206 between the first seal ring 204 and the second seal ring 205, hub body 201 is provided with for the oil hole 207 to oiling in shoe cream room 206, and oil hole 207 is provided with plug screw 208.
In the present embodiment, in shoe cream room 206, inject lubricant oil from oil hole 207, identical with the effect of embodiment one, equally specific aim protective function is played to the first seal ring 204 and the second seal ring 205, do not repeat them here.
Above-mentioned axle sleeve 202 comprises the sleeve body 2021 and oil sealing seat ring 2022 that are fixedly set-located, and the outer circumferential face of oil sealing seat ring 2022 is the sealing surfaces contacted with the first seal ring 204.In the present embodiment, axle sleeve 202 split is designed to sleeve body 2021 and oil sealing seat ring 2022, identical with the effect of embodiment one, do not repeat them here.
Be provided with the 4th seal ring 210 between first seal ring 204 and hub body 201, achieve the static sealing between the first seal ring 204 and hub body 201, can high pressure be born, and ensure sealing reliably.
When assembling, be preset in hub body 201 by the 4th seal ring 210, then load in hub body 201 by oil sealing seat ring 2022, first seal ring 204 and the second seal ring 205, inject lubricant oil by oil hole 207, plug screw 208 is tightened after being coated with sealer.
For the ease of dismantling the first seal ring 204 and the second seal ring 205, the outer circumferential face of oil sealing seat ring 2022 is provided with outer radial flange collar 2023, and the inner peripheral surface of oil sealing seat ring 2022 is provided with interior radial flange collar 2024; Outer radial flange collar 2023 catches on the first seal ring 204 from sealing area side, interior radial flange collar 2024 is provided with the tapped hole 2025 for dismantling oil sealing seat ring 2022, during dismounting, the tapped hole 2025 of radial flange collar 2024 in screw or bolt are screwed in, thus the first seal ring 204 and the second seal ring 205 can be dismantled easily.
In above-described embodiment, first seal ring and the second seal ring can be the skeleton rubber seal ring with sealing lip, the exoskeletal rubber seal with sealing lip or felt seal ring etc., and the 3rd seal ring and the 4th seal ring can be O type rubber seal or hollow metal O RunddichtringO etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. hub, comprising:
Hub body and run through the axle sleeve of described hub body, described axle sleeve is installed in described hub body by bearing, the first seal ring and the second seal ring is provided with between the sealing surface of described hub body and the sealing surface of described axle sleeve, in the axial direction, the inner side of described first seal ring is sealing area, and the outside of described second seal ring is atmosphere zone; It is characterized in that,
The sealing surface of described hub body, the sealing surface of described axle sleeve and the shoe cream room formed between described first seal ring and described second seal ring for holding lubricant oil, described hub body is provided with for the oil hole to oiling in described shoe cream room, and described oil hole is provided with plug screw.
2. hub according to claim 1, is characterized in that, described axle sleeve comprises the sleeve body and oil sealing seat ring that are fixedly set-located, and the outer circumferential face of described oil sealing seat ring is the sealing surface contacted with described first seal ring.
3. hub according to claim 2, is characterized in that, is provided with the 3rd seal ring between described oil sealing seat ring and described sleeve body.
4. hub according to claim 2, is characterized in that, the outer circumferential face of described oil sealing seat ring is provided with outer radial flange collar, and the inner peripheral surface of described oil sealing seat ring is provided with interior radial flange collar; Described outer radial flange collar catches on described first seal ring from described sealing area side, and described interior radial flange collar is provided with the tapped hole for dismantling oil sealing seat ring.
5. the hub according to claim 3 or 4, is characterized in that, is provided with the 4th seal ring between described first seal ring and described hub body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510454773.1A CN105065676B (en) | 2015-07-29 | 2015-07-29 | Hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510454773.1A CN105065676B (en) | 2015-07-29 | 2015-07-29 | Hub |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105065676A true CN105065676A (en) | 2015-11-18 |
| CN105065676B CN105065676B (en) | 2017-08-25 |
Family
ID=54495127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510454773.1A Active CN105065676B (en) | 2015-07-29 | 2015-07-29 | Hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105065676B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2238332Y (en) * | 1995-12-27 | 1996-10-23 | 辛育霖 | Single-stage single-suction minisize centrifugal pump |
| CN101788056A (en) * | 2009-01-22 | 2010-07-28 | 江苏华阳重工科技股份有限公司 | Oil-lubricated sealing device of oil-pressure self-adjusting ship |
| CN201858363U (en) * | 2010-11-03 | 2011-06-08 | 中国第一汽车集团公司 | Hub oil seal with pre-blocking lip opening and lining ring of automobile drive axle |
| CN202466565U (en) * | 2012-03-15 | 2012-10-03 | 中国铁建重工集团有限公司 | Driven wheel sealing structure of chain cutter type continuous wall |
| CN102829183A (en) * | 2012-08-13 | 2012-12-19 | 陕西长岭电子科技有限责任公司 | Large-diameter high-pressure mechanical sealing device |
| CN102943880A (en) * | 2012-10-30 | 2013-02-27 | 中国核电工程有限公司 | Shaft transmission sealing system |
| CN202768847U (en) * | 2012-09-20 | 2013-03-06 | 湖南中联重科车桥有限公司 | Oil seal device and axle wheel hub leakproof structure and vehicles with oil sealing device |
| US20130189084A1 (en) * | 2010-09-29 | 2013-07-25 | Craig Hatfull | Arrangement, a sealing assembly, a casing flange and a spacer for sealing the propeller shaft of a marine vessel |
| CN203463662U (en) * | 2013-09-26 | 2014-03-05 | 徐工集团工程机械股份有限公司科技分公司 | Drive axle wheel side dustproof structure |
| CN203571047U (en) * | 2013-10-24 | 2014-04-30 | 上海城建市政工程（集团）有限公司 | Tube pushing bench spindle sealing structure achieved in center shaft bearing mode |
| CN204878728U (en) * | 2015-07-29 | 2015-12-16 | 山东浩信机械有限公司 | Hub unit |
-
2015
- 2015-07-29 CN CN201510454773.1A patent/CN105065676B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2238332Y (en) * | 1995-12-27 | 1996-10-23 | 辛育霖 | Single-stage single-suction minisize centrifugal pump |
| CN101788056A (en) * | 2009-01-22 | 2010-07-28 | 江苏华阳重工科技股份有限公司 | Oil-lubricated sealing device of oil-pressure self-adjusting ship |
| US20130189084A1 (en) * | 2010-09-29 | 2013-07-25 | Craig Hatfull | Arrangement, a sealing assembly, a casing flange and a spacer for sealing the propeller shaft of a marine vessel |
| CN201858363U (en) * | 2010-11-03 | 2011-06-08 | 中国第一汽车集团公司 | Hub oil seal with pre-blocking lip opening and lining ring of automobile drive axle |
| CN202466565U (en) * | 2012-03-15 | 2012-10-03 | 中国铁建重工集团有限公司 | Driven wheel sealing structure of chain cutter type continuous wall |
| CN102829183A (en) * | 2012-08-13 | 2012-12-19 | 陕西长岭电子科技有限责任公司 | Large-diameter high-pressure mechanical sealing device |
| CN202768847U (en) * | 2012-09-20 | 2013-03-06 | 湖南中联重科车桥有限公司 | Oil seal device and axle wheel hub leakproof structure and vehicles with oil sealing device |
| CN102943880A (en) * | 2012-10-30 | 2013-02-27 | 中国核电工程有限公司 | Shaft transmission sealing system |
| CN203463662U (en) * | 2013-09-26 | 2014-03-05 | 徐工集团工程机械股份有限公司科技分公司 | Drive axle wheel side dustproof structure |
| CN203571047U (en) * | 2013-10-24 | 2014-04-30 | 上海城建市政工程（集团）有限公司 | Tube pushing bench spindle sealing structure achieved in center shaft bearing mode |
| CN204878728U (en) * | 2015-07-29 | 2015-12-16 | 山东浩信机械有限公司 | Hub unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105065676B (en) | 2017-08-25 |
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| C06 | Publication | ||
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| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: wheel hub Effective date of registration: 20211022 Granted publication date: 20170825 Pledgee: China Construction Bank Corporation Changyi sub branch Pledgor: SHANDONG HAOXIN MACHINERY Co.,Ltd. Registration number: Y2021980011149 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230103 Granted publication date: 20170825 Pledgee: China Construction Bank Corporation Changyi sub branch Pledgor: SHANDONG HAOXIN MACHINERY Co.,Ltd. Registration number: Y2021980011149 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CP03 | Change of name, title or address |
Address after: 261307 south head of Weizi Town, Changyi City, Weifang City, Shandong Province Patentee after: Shandong Haoxin Machinery Co.,Ltd. Country or region after: China Address before: 261307 Hao Xin Industrial Park, Weizi Town, Changyi City, Weifang, Shandong Patentee before: SHANDONG HAOXIN MACHINERY Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |