WO2018215164A1 - Wheel hub arrangement with recesses for carrying off oil leaking from a bearing seal arrangement - Google Patents
Wheel hub arrangement with recesses for carrying off oil leaking from a bearing seal arrangement Download PDFInfo
- Publication number
- WO2018215164A1 WO2018215164A1 PCT/EP2018/060789 EP2018060789W WO2018215164A1 WO 2018215164 A1 WO2018215164 A1 WO 2018215164A1 EP 2018060789 W EP2018060789 W EP 2018060789W WO 2018215164 A1 WO2018215164 A1 WO 2018215164A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wheel hub
- recess
- wheel
- arrangement
- head assembly
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/0047—Hubs characterised by functional integration of other elements
- B60B27/0052—Hubs characterised by functional integration of other elements the element being a brake disc
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/0073—Hubs characterised by sealing means
-
- 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
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7886—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted outside the gap between the inner and outer races, e.g. sealing rings mounted to an end face or outer surface of a race
-
- 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
- F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/001—Hubs with roller-bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/0047—Hubs characterised by functional integration of other elements
- B60B27/0057—Hubs characterised by functional integration of other elements the element being a brake drum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/50—Improvement of
- B60B2900/511—Sealing
Definitions
- the invention relates to a wheel head assembly according to the preamble of patent claim 1.
- Generic wheel head arrangements comprising a Radnabenarme, arranged on the Radnabenany and sealed by means of a sealing arrangement rotatably movable at least partially filled with oil wheel hub, and an operatively connected to the wheel brake device with a brake lining comprising a friction arrangement are well known.
- the wheel hub is arranged on a Radnabenexcellent and rotatably supported by means of several bearings on this. To ensure a long service life of the bearings they must be lubricated constantly. For this reason, a lubricant is constantly present within the wheel hub. This can get in case of failure of the seal assembly to the outside and on the brake pad friction arrangement of the brake device, whereby a functionality of the brake device can be significantly affected.
- CN201521110997U a generic wheel head assembly is known, which provides an oil drain hole, which should be designed to dissipate the oil seepage on failure of the seal assembly to the outside in the environment.
- CN201521110997U it can not be ruled out that due to capillary action, the seeping oil will move through the gap between the wheel hub and the hub carrier and still reach the brake device.
- the object of the present invention is to provide an alternative wheel head assembly which overcomes the disadvantages of the prior art.
- the wheel head assembly having the features of the characterizing part of patent claim 1.
- the wheel hub and the Radnabenlie each have at least one recess which are adapted to prevent the case of failure of the seal assembly from the wheel hub by the seal assembly seeping oil to the friction arrangement of the braking device to achieve.
- the recess of the wheel hub can be designed as a groove running around the outer circumference of an end section of the wheel hub facing the seal arrangement. This prevents the oil seeping out of the wheel hub through the seal assembly from moving along the outer surface of the wheel hub.
- it is formed by a circulating around the wheel drip projection, which facilitates the dripping of the oil from the outer surface of the wheel hub.
- a first recess of Radnabenabos is arranged at one of the seal assembly facing portion and executed such that is received in the assembled state of the Radkopfan let the end portion of the wheel hub with the circumferential groove executed therein within the recess of Radnabenapps.
- the first recess of Radnabenabos is advantageously carried out as a circular around the wheel hub extending groove-shaped undercut or a radial recess of Radnaben umans, which increases the gap between the rotating hub and a rotationsunbeweglichen relative to the wheel hub Radnabenhow. Thereby, a possible capillary action of the gap is significantly reduced, whereby the oil is additionally prevented from moving along the outer surface of the wheel hub.
- the Radnabenabo comprises a second recess, which is designed as a radially extending breakthrough and connects the first recess of Radnabentheres with the environment.
- the oil can be routed away from the first recess of the wheel hub carrier in a simple manner.
- the second recess may advantageously be carried out particularly favorably as a groove or as a bore.
- Fig. 1 a perspective view of an example embodiment of a wheel head assembly according to claim 1;
- FIG. 2 shows a sectional view of a wheel head arrangement according to FIG. 1
- FIG. 3 shows an enlarged partial sectional view of the wheel head arrangement according to FIG. 2
- FIG. 1 initially shows in perspective an exemplary embodiment of a wheel head arrangement according to patent claim 1.
- This comprises a wheel hub carrier 2 and a wheel hub 4, which is rotatably mounted on the wheel hub carrier 2 with the aid of bearings 17, 18.
- the wheel hub 4 is at least partially filled with a lubricant.
- the seal 3 seals the rotationally movable wheel hub 4 relative to the wheel hub carrier 2 and ensures that the lubricant does not escape from the interior of the wheel hub 4 into the environment.
- a brake device 5 with a brake pad 6 comprehensive friction assembly 7 is shown, which is operatively connected to the wheel hub 4 and is activated by the brake cylinder 20.
- the braking device 5 is shielded by an apron 16 against the ingress of dirt from the environment.
- the fender 16 is disposed between the brake device 5 and the wheel hub 2.
- FIG. 2 shows a sectional view of an exemplary embodiment of a wheel head assembly 1 according to claim 1.
- the wheel hub 4 is rotatably supported by means of two bearings 17, 18 on the Radnabenlie 2.
- the wheel hub 4 is sealed by means of a sealing arrangement 3 with respect to the wheel hub carrier 2.
- the brake device 5 is shown in the embodiment variant shown in FIG. 2 as a so-called drum brake. This surrounds the wheel hub 4 in the circumferential direction, so that the wheel hub 4 is disposed within the brake device 5.
- the lubricant which is located within the wheel hub 4 and the bearings 17, 18 lubricates, passes to the outside and reaches the brake device 5.
- the wheel hub 4 and the wheel hub carrier 2 has a plurality of recesses 8, 9, 10.
- a recess 8 in the form of a circumferential groove 4 around the groove 12 is formed.
- this circumferential groove 12 from the inside of the wheel hub 4 by a possibly defective seal assembly 3 seeping oil is interrupted in its movement in the direction away from the Radnabenarri 2 direction.
- the wheel hub 4 has a drip projection 21, which is formed in the end portion 1 1 of the wheel hub 4 and axially limited by the groove 12.
- the wheel hub carrier 2 has a first recess 9 and a second recess 10.
- the first recess 9 of the Radnabenarris 2 is formed such that it is substantially circular around the end portion 1 1 of the wheel hub 4 around and the end portion 1 1 of the hub 4 with the Abtropfvorsprung 21 and the groove 12 receives.
- the first recess 9 of the wheel hub carrier 2 has a channel-shaped undercut 14, which is designed to receive the lubricant dripping from the drip projection 21 of the wheel hub 4.
- the second recess 10 of the Radnabenarmes 2 is formed in the embodiment variant shown in Figure 2 as a Abiaufbohrung and connects the first recess 9 of the wheel hub 2 with the environment.
- the second recess 10 is aligned such that the oil dripping from the drip projection 21 is directed to the outside and to the outwardly directed, remote from the braking device 5 surface of the guard plate 16. Thereby, the oil can be directed to the outside, into the environment, and prevented from reaching the brake device 5, in particular the friction pad 7 comprising a brake pad 6, the brake device 5.
- the undercut 14 is located directly adjacent to a between the wheel hub 4 and the Radnabenango 2 located and designed so that it radially increases the gap 19 in sections. As a result, a capillary action is counteracted, which is a seepage of the oil in the Gap 19 on the surface of the wheel hub 4 in the direction of the brake device 5 prevented.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112019023016-5A BR112019023016B1 (en) | 2017-05-23 | 2018-04-26 | WHEEL HUB ARRANGEMENT WITH RECESS FOR OIL DISCHARGE OUTPUT THROUGH A SUPPORT SEAL ARRANGEMENT |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017208742.0 | 2017-05-23 | ||
DE102017208742.0A DE102017208742A1 (en) | 2017-05-23 | 2017-05-23 | Radkopfanordnung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018215164A1 true WO2018215164A1 (en) | 2018-11-29 |
Family
ID=62116847
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2018/060789 WO2018215164A1 (en) | 2017-05-23 | 2018-04-26 | Wheel hub arrangement with recesses for carrying off oil leaking from a bearing seal arrangement |
Country Status (3)
Country | Link |
---|---|
BR (1) | BR112019023016B1 (en) |
DE (1) | DE102017208742A1 (en) |
WO (1) | WO2018215164A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5885505U (en) * | 1981-12-04 | 1983-06-10 | トヨタ自動車株式会社 | axle device |
DE3424730A1 (en) * | 1984-07-05 | 1985-10-17 | Daimler-Benz Ag, 7000 Stuttgart | Drive axle of a motor vehicle having a wheel hub housing which is driven by a drive half shaft and having an associated drum brake |
WO2013179643A1 (en) * | 2012-05-31 | 2013-12-05 | 日野自動車株式会社 | Bearing structure |
US9387722B2 (en) * | 2012-12-27 | 2016-07-12 | Toyota Jidosha Kabushiki Kaisha | Wheel oil supply device and wheel driving device |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10350928B4 (en) | 2003-10-31 | 2012-10-11 | Zf Friedrichshafen Ag | Rear axle wheel head for single and twin tires |
JP5158664B2 (en) | 2006-03-06 | 2013-03-06 | Ntn株式会社 | Wheel bearing device |
-
2017
- 2017-05-23 DE DE102017208742.0A patent/DE102017208742A1/en active Pending
-
2018
- 2018-04-26 BR BR112019023016-5A patent/BR112019023016B1/en active IP Right Grant
- 2018-04-26 WO PCT/EP2018/060789 patent/WO2018215164A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5885505U (en) * | 1981-12-04 | 1983-06-10 | トヨタ自動車株式会社 | axle device |
DE3424730A1 (en) * | 1984-07-05 | 1985-10-17 | Daimler-Benz Ag, 7000 Stuttgart | Drive axle of a motor vehicle having a wheel hub housing which is driven by a drive half shaft and having an associated drum brake |
WO2013179643A1 (en) * | 2012-05-31 | 2013-12-05 | 日野自動車株式会社 | Bearing structure |
US9387722B2 (en) * | 2012-12-27 | 2016-07-12 | Toyota Jidosha Kabushiki Kaisha | Wheel oil supply device and wheel driving device |
Also Published As
Publication number | Publication date |
---|---|
BR112019023016B1 (en) | 2023-01-03 |
BR112019023016A2 (en) | 2020-05-19 |
DE102017208742A1 (en) | 2018-11-29 |
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