CN101920629A - The wheel suspension of motor vehicles of the wheel stand unit of band pivotable around steering axis - Google Patents
The wheel suspension of motor vehicles of the wheel stand unit of band pivotable around steering axis Download PDFInfo
- Publication number
- CN101920629A CN101920629A CN2010101798133A CN201010179813A CN101920629A CN 101920629 A CN101920629 A CN 101920629A CN 2010101798133 A CN2010101798133 A CN 2010101798133A CN 201010179813 A CN201010179813 A CN 201010179813A CN 101920629 A CN101920629 A CN 101920629A
- Authority
- CN
- China
- Prior art keywords
- wheel
- bearing support
- wheel bearing
- described wheel
- bearing
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/18—Steering knuckles; King pins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
Abstract
The present invention relates to a kind of wheel suspension of motor vehicles of the wheel stand unit with pivotable around steering axis, it has can center on the carrier unit that is used for vehicle wheels (1) that steering shaft (S) pivots, it comprises: wheel hub (4) is furnished with vehicle wheels (1) on wheel hub; Wheel bearing support (2), it has Wheel bearing (5), and wheel hub (4) supports through Wheel bearing relative wheel bearing support (2); Wherein, steering shaft (S) is disposed in the wheel median surface, it is characterized in that, Wheel bearing support (2) divides two parts to constitute, and the second portion (2b) of first (2a) the relative wheel bearing support (2) of Wheel bearing support (2) can center on steering shaft (S) and support pivotally.
Description
Technical field
The present invention relates to the wheel suspension that is used for self-propelled vehicle that a kind of cum rights profit requires 1 preamble feature, this wheel suspension has can be around the carrier unit that is used for vehicle wheels of steering shaft pivot.
Background technology
Be applied to the vehicle wheels that can turn to and known in different embodiments especially with the wheel suspension of pivotable carrier unit.For example known wheel suspension with compound intermediate rod or MacPherson type (Mc-Pherson) shock strut, in this wheel suspension, the vertical plane of the relative vehicle of steering shaft arranges that with the relatively large inclination angle of 12-14 degree this inclination angle is also referred to as bubble flare (Spreizungswinkel).In said embodiment and since steering shaft with the running of the relatively large spacing of distance wheel center, affact power on the wheel by this spacing nucleus formation to the so-called distrubing moment that turns to, it is uncomfortable and interfering that this distrubing moment is considered to.This problem especially appears in the self-propelled vehicle of high vehicularized before driving.Therefore in the ideal case, steering shaft should be arranged in the plane that affacts the synthetic longitudinal force on the tyre contact patch, and this longitudinal force plane is consistent with the wheel median surface as a rule.If can not determine accurately that this affacts the plane of the longitudinal force on the tire bearing surface, then available wheel median surface replaces.
By the known a kind of wheel suspension of DE 10 2,005 043 425 A1, wherein, Wheel bearing is arranged around steering shaft relative wheel bearing support pivotly together with vehicle wheels.Steering shaft is arranged in such a way, that is, steering shaft is arranged in the plane that acts on the vertical line of action of force on the tyre contact patch, especially is arranged in the wheel median surface.In the mentioned herein solution, but pivotability can be achieved in the following way, that is, the relative wheel bearing support of the outside race of Wheel bearing own can pivot.The reason that outside race is created the actual functional capability of rolling surface owing to its rolling body for antifriction-bearing box is strict with on material and surface accuracy.But require the extra areal of support on outside race via the pivotability that outside race is realized, the expense of outside race is more expensive thus.In addition, because the relation of outside race and outside race size, but the layout of supporting structure on carrier unit that realizes pivotability can not freely be selected, in addition, usually be provided with brake disc in the wheel suspension of novel vehicle, brake disc is around Wheel bearing or be close to the Wheel bearing layout at least.Thereby outside race around the supporting structure of steering shaft except also bearing the extra thermal source that forms by brake disc by the heat that wheel support structure produced when the brake.But shortcoming in essence is that still supporting structure is overheated, and this is because can produce thermal stress in supporting structure and/or the lubricant that is provided with can lose that it is functional by heat in supporting structure.
Summary of the invention
Therefore task of the present invention is that realizes a kind of wheel suspension with steering shaft, this steering shaft is disposed in the wheel median surface, and wherein, but realization is improved around the supporting structure of the pivotability of steering shaft.
This task requires the wheel suspension of 1 described feature to be solved by the cum rights profit.Other according to preferred implementation of the present invention referring to dependent claims, accompanying drawing and and affiliated explanation.
For the solution task is advised as follows: the Wheel bearing support is divided into two parts and constitutes, and the first of Wheel bearing support can be supported around steering shaft pivotally by the second portion of relative wheel bearing support.
Basic idea of the present invention is, the Wheel bearing support is divided into two parts constitutes, but and arrange that between two parts of Wheel bearing support realization centers on the supporting structure of the pivotability of steering shaft.Thus, supporting structure also can be disposed on the another location of carrier unit under the situation of the outside race that does not rely on Wheel bearing.On outside race, thermal property and force characteristic more help supporting structure.In addition, the outside race of conventional physical dimension also can be used, and outside race only needs to be set up about its actual functional capability.
Further propose, the supporting structure between the second portion of the first of Wheel bearing support and Wheel bearing support is disposed in the radially external section of Wheel bearing support.For the reason that mentioned supporting structure is arranged, supporting structure is big as far as possible to the spacing of vehicle wheels rotating shaft, thereby the power that affacts on the supporting structure is as far as possible little for the reason of lever law.In addition, obtain the high-stability that the Wheel bearing support clamps thus, the position should be arranged thereby the Wheel bearing support also remains on it under the power condition with higher that acts on the vehicle wheels.
Another kind is according to preferred implementation of the present invention, the arm that stretches out in the wheel hub direction that the Wheel bearing support has that at least two radially outers arrange, supporting structure between first and second parts of Wheel bearing support is disposed in the arm, on wheel hub, arrange brake disc, and wheel hub extend between arm in the formed clearance envelope with brake disc.For mentioned arm with extend into the reason of the wheel hub in the clearance envelope between the arm, steering shaft can be provided with like this, be that steering shaft passes wheel hub and distributes, thereby, in the wheel bearing surface, be in the plane with steering shaft and parallel distribution with withing joint efforts with having advantage.
Further proposition in this case is disposed radially gappedly between brake disc and vehicle wheels, and the Wheel bearing support with arm extend in the gap.For the reason of the layout of arm between brake disc and vehicle wheels, the amount of air of vehicle wheels by eddy flow by rotation additionally cools off arm from the outside with supporting structure, thereby can reduce the danger of not wishing the supporting structure heating that takes place.
Propose in addition, arrange two bearings at least between the second portion of the first of Wheel bearing support and Wheel bearing support, one constitutes as fixed type bearing, and one constitutes as floating bearing.Constitute as floating bearing and only be used to absorb under the situation of diametral load at second bearing, fixed type bearing can absorb additional absorbent axial force outside the diametral load.The supporting structure that passes through to be proposed can prevent under the situation of heating, can produce thermal stress in the Wheel bearing support.In addition, can realize the bearing position by fixed type bearing, the power that affacts on the vehicle wheels through this bearing position can be passed in the structure of self-propelled vehicle via the Wheel bearing support.
A kind of special supporting structure type with load-carrying capacity can realize thus that promptly, the relative second portion of the first of Wheel bearing support passes through sliding supported condition.The advantage of plain bearing mainly is, can absorb bigger power for the reason of planes carry, and additionally realize the point-device guiding to the part of mutual supporting.
Further propose, the first of Wheel bearing support supports by the relative second portion of the combination that is formed by radial bearing and cod in a bearing at least, and radial bearing and cod have common bearing case (Lagerschale).Can realize a kind of association by common bearing case, this association can realize the bearing prepackage, and bearing then can be installed on the Wheel bearing support in installation steps.In addition, can realize the association that self is firm by the association by common bearing case, this association is not orthogonal in absorption has advantage aspect the supporting power of areal of support orientation.
A kind of firm especially structure of Wheel bearing minimum loads can realize in the following way that wherein steering shaft is arranged in such a way, that is, steering shaft with intersect with the zone of the overlapping wheel hub of Wheel bearing support in the axial direction.By the layout of mentioned steering shaft, the throw of lever to the power of Wheel bearing that produces in turning to can keep as far as possible for a short time, thereby Wheel bearing just bears as far as possible little load by this power.
Description of drawings
Followingly the present invention is described in detail by a preferred embodiment.Wherein:
Fig. 1 illustrates the wheel suspension of band two parts formula Wheel bearing support;
Fig. 2 a-2e illustrates supporting structures dissimilar between the Wheel bearing support.
The specific embodiment
Fig. 1 is that the vehicle wheels 1 that drives with the left side is the section drawing of the wheel suspension assembly of example.Vehicle wheels 1 links to each other with wheel hub 4 together with brake disc 6 antitorquely.Wheel hub 4 is provided with internal tooth 4a, and unshowned axle drive shaft is engaged in the wheel hub.Wheel hub 4 is rotatably mounted by Wheel bearing 5 relative wheel bearing support 2.Be furnished with outside race 8 on Wheel bearing support 2, outside race is configured for the radially external running face of the rolling body of Wheel bearing 5.
Wheel bearing support 2 divides two parts to constitute by a 2a of first and second portion 2b and stretches among the annular space X that is provided with between brake disc 6 and the vehicle wheels 1 with arm 7 and 9. Arm 7 and 9 promptly, respectively has space X1 and X2 between arm and brake disc 6 or the vehicle wheels 1 in this such mensuration.In the layout of this wheel suspension, it should be noted in principle, space X1 and space X2 must not be too small, the heat that is produced by brake disc 6 when braking on the one hand thus can the superheated supporting structure, and vehicle wheels 1 can not be restricted in the pivoting action of steering shaft S at it.
The 2a of first of Wheel bearing support 2 is provided with axle journal 3a and 3b, and the 2a of first supports around steering shaft S pivotly through the second portion 2b of axle journal relative wheel bearing support 2.Axle journal 3a radially reaches supporting vertically through fixed type bearing 20 about steering shaft S in arm 9.Axle journal 3b is bearing in the floating bearing 10 pivotly around steering shaft S in opposed arm 7.Steering shaft S is arranged in the wheel median surface, thereby can not generate distrubing moment by the synthetic longitudinal force that affacts on the tyre contact patch.If synthetic longitudinal force is in the wheel median surface, steering shaft S just can be disposed in the plane of synthetic longitudinal force and be arranged in the wheel median surface with replacement.The present invention also comprises a kind of layout, and in this arrangement, steering shaft departs from from the wheel median surface with the angle of a less 1-2 degree.And for fear of distrubing moment, this angle should be selected as far as possible for a short time.
Be divided into two-part reason for Wheel bearing support 2, fixed type bearing 20 and floating bearing 10 can be disposed on the radially external section of Wheel bearing support 2, promptly in arm 7 and 9, arm 7 and 9 and the spacing of the S. A. Y of vehicle wheels 1 obviously greater than the supporting spacing in the cards of passing through outside race 8 set in the prior art.In addition, fixed type bearing 20 and floating bearing 10 are arranged in such a way, and promptly their radial direction outer ground surrounds brake disc 6, thereby are located away from heat-producing Wheel bearing 5 as far as possible.Because arm 7 and 9 is radially outward centered on by vehicle wheels 1, just can be derived again by the air-flow that causes through vehicle wheels 1 rotation by the heat that brake disc 6 produces.Be that by the resulting advantage of mentioned supporting arm 7 and 9 (realizing supporting by it) has big as far as possible spacing to each other, thereby Wheel bearing support 2 is clamped as far as possible firmly for other motions on the whole except pivoting.
The different embodiments of fixed type bearing 20 shown in Fig. 2 a-2e, wherein, the embodiment of floating bearing 10 can be generated very simply as follows by these embodiments, wherein, has abandoned axial bearing structure respectively.
Shown in Fig. 2 a, how axle journal 3a is supported in the acceptance division 22 of arm 9 of the second Wheel bearing support 2b shown in Figure 1 by one-sided fixed type bearing 20, and one-sided fixed type bearing is made of a radial bearing 20b and a cod 20a who constitutes plain bearing equally who constitutes plain bearing.Not only in the zone of radial bearing 20b but also in the zone of cod 20a, be provided with material for sliding bearing layer 23, can obtain desired bearing characteristics, as sliding properties, wear resistance or heatproof characteristic by material for sliding bearing.Can consider different synthetic materiaies (plastics), especially polyamide (PA), Polyethylene Terephthalates (PET) and polyformaldehyde (POM) as material for sliding bearing.Also can use the various alloys of making by aluminium and bronze.Material for sliding bearing 23 is shaped to bearing case (bearing shell), and bearing shell not only constitutes radial bearing 20b but also constitutes cod 20a.Bearing shell can be installed in installation steps very simply and be constituted firm association therein, and this association also can realize absorbing the power of horizontal or oblique orientation.In this embodiment, fixed type bearing 20 constitutes one-sided fixed type bearing, thereby in this case, the floating bearing 10 shown in Fig. 1 also should constitute one-sided fixed type bearing, and the 2a of first of Wheel bearing support 2 is with respect to the second portion 2b of Wheel bearing support 2 clamping that is fixed thus.So-called one-sided fixed type bearing is meant at this, only can absorb along the axial force of a direction orientation.
At a kind of optional embodiment of fixed type bearing 20 shown in Fig. 2 b, in this embodiment, axle journal 3a through constituting needle bearing radial bearing 20b and be supported on the arm 9 through slide shaft carrier ring as cod 20a effect.In addition, the screw element 21 that rests on through the position on the arm 9 of axle journal 3a links to each other with this arm.By axle journal 3a through being connected of screw element 21 and arm 9, although one-sided by the plain bearing annulate shaft to supporting, head by screw element 21 and screw thread also absorb the power along another axial direction.
Embodiment in Fig. 2 b shown in Fig. 2 c further expands, and wherein, cod 20a is replenished around another cod 20c, and cod 20c constitutes plain bearing equally and is disposed between the head and arm 9 of screw element 21.Cod 20c is used for relative arm 9 support thread parts 21, thereby the screw element that links to each other with axle journal 3a 21 same relative arms 9 supporting ground can be rotated.
Shown in Fig. 2 d according to an alternative embodiment of the invention, wherein, not only radial bearing 20b but also cod 20a all constitute needle bearing.The rolling body of cod 20a and radial bearing 20b is disposed between two bearing cases 24 and 25, uses thereby whole supporting structure can be used as prefabricated assembly set.In addition, the advantage that bearing case 24 and 25 common use have is, supporting power by dispersive vectoring as much as possible in axle journal 3a and arm 9, this is identical with the situation of using plain bearing, wherein, the rolling body that is arranged between bearing case 24 and 25 by use can keep the good service performance of antifriction-bearing box.
At another embodiment of fixed type bearing 20 shown in Fig. 2 e, wherein, supporting structure constitutes by the needle bearing 20d and the 20e of two oblique orientations.Screw element 21 is divided into the taper Embedded Division 21b that two parts constitute and have annular at this, and the opening that has by taper Embedded Division 21b stretches out retaining thread spare 21a.The association that is made of retaining thread spare 21a and tapered portion 21b is achievable generally is the task same with screw element shown in Fig. 2 b to 2d 21, that is, axle journal 3a is linked to each other with arm 9.And the advantage that two parts embodied of screw element 21 is, is using standard thread spare also can use the bigger bearing of diameter between tapered portion 21b and arm 9 under as the situation of retaining thread spare 21a.In addition, needle bearing 20d by using oblique orientation and 20e and by axle journal 3a is fixed on the clamping that can realize simultaneously that on arm 9 supporting structure makes progress with the footpath vertically through screw element 21, thus after assembling, form very firm association generally.
Claims (8)
1. the wheel suspension that is used for self-propelled vehicle, described wheel suspension have can center on the carrier unit that is used for vehicle wheels (1) that steering shaft (S) pivots, and described carrier unit comprises
-wheel hub (4) is furnished with described vehicle wheels (1) on described wheel hub,
-Wheel bearing support (2), described Wheel bearing support has Wheel bearing (5), and described wheel hub (4) supports through the described relatively Wheel bearing support of described Wheel bearing (2), wherein,
-described steering shaft (S) is arranged in the wheel median surface,
It is characterized in that,
-described Wheel bearing support (2) divides two parts to constitute,
-and the second portion (2b) of the described relatively Wheel bearing support of first (2a) (2) of described Wheel bearing support (2) is supporting around the mode that described steering shaft (S) pivots.
2. by the described wheel suspension of claim 1, it is characterized in that the supporting structure between the described second portion (2b) of the described first (2a) of described Wheel bearing support (2) and described Wheel bearing support (2) is arranged in the radially external section of described Wheel bearing support (2).
3. by the described wheel suspension of one of aforesaid right requirement, it is characterized in that, the arm (7,9) that described Wheel bearing support (2) has is that at least two radial direction outers are arranged, stretch out to described wheel hub (4) direction, in described arm, arrange the described first of described Wheel bearing support (2) and the described supporting structure between the described second portion (2a, 2b), on described wheel hub (4), be furnished with brake disc (6), and described wheel hub (4) extend in the clearance envelope (26) that forms between two described arms (7,9) with described brake disc (6).
4. by the described wheel suspension of claim 3, it is characterized in that, between described brake disc (6) and described vehicle wheels (1), be provided with gap (X), and described Wheel bearing support (2) extend in the described gap (X) with described arm (7,9).
5. by the described wheel suspension of one of aforesaid right requirement, it is characterized in that, between the described second portion (2b) of the described first (2a) of described Wheel bearing support (2) and described Wheel bearing support (2), be provided with at least two bearings, one of them bearing constitutes fixed type bearing (20), and a bearing constitutes floating bearing (10).
6. by the described wheel suspension of one of aforesaid right requirement, it is characterized in that the described relatively second portion of described first (2a) (2b) of described Wheel bearing support (2) passes through sliding supported condition.
7. by the described wheel suspension of one of aforesaid right requirement, it is characterized in that, the described first (2a) of described Wheel bearing support (2) supports by the relative described second portion of combination (2b) that is formed by radial bearing (20b) and cod (20a) at least one bearing position, and radially described-and cod (20a, 20b) have common bearing case (23,24,25).
8. by the described wheel suspension of one of aforesaid right requirement, it is characterized in that described steering shaft (S) is arranged in such a way, that is, described steering shaft with intersect with the zone of the overlapping described wheel hub (4) of described Wheel bearing support (2) in the axial direction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200910021472 DE102009021472A1 (en) | 2009-05-15 | 2009-05-15 | Wheel suspension for steerable motor vehicle, has wheel bearing carrier provided with wheel bearing, where part of wheel bearing carrier is supported in relation to another part of wheel bearing carrier and tiltable around steering axis |
| DE102009021472.0 | 2009-05-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101920629A true CN101920629A (en) | 2010-12-22 |
| CN101920629B CN101920629B (en) | 2014-11-26 |
Family
ID=42979166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010179813.3A Expired - Fee Related CN101920629B (en) | 2009-05-15 | 2010-05-17 | Motor vehicle wheel suspension with a suspension carrier unit pivotable around steering axis |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101920629B (en) |
| DE (1) | DE102009021472A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110997459A (en) * | 2017-08-08 | 2020-04-10 | Zf腓特烈斯哈芬股份公司 | Wheel suspension |
| CN111656030A (en) * | 2018-04-03 | 2020-09-11 | 舍弗勒技术股份两合公司 | Joint bearing for a motor vehicle wheel module |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922948B (en) * | 2012-10-31 | 2016-03-30 | 宁波三泰轴承有限公司 | A kind of bearing arrangement for rail wheel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3680654A (en) * | 1969-01-22 | 1972-08-01 | Porsche Kg | Bearing for vehicle wheels, particularly for driven wheels of automobiles |
| CN1703335A (en) * | 2002-10-02 | 2005-11-30 | 株式会社普利司通 | In-wheel motor system for steering wheel |
| DE102005043425A1 (en) * | 2005-09-13 | 2007-03-29 | Schaeffler Kg | Pivot bearing unit for rotatably supporting motor vehicle wheel, has wheel bearing support supporting roller bearing, where rotational movement of bearing together with motor vehicle wheel is made around steering axle |
| US20070080513A1 (en) * | 2003-10-15 | 2007-04-12 | Jurgen Osterlanger | Device for modifying the wheel camber of a wheel on a motor vehicle |
-
2009
- 2009-05-15 DE DE200910021472 patent/DE102009021472A1/en not_active Withdrawn
-
2010
- 2010-05-17 CN CN201010179813.3A patent/CN101920629B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3680654A (en) * | 1969-01-22 | 1972-08-01 | Porsche Kg | Bearing for vehicle wheels, particularly for driven wheels of automobiles |
| CN1703335A (en) * | 2002-10-02 | 2005-11-30 | 株式会社普利司通 | In-wheel motor system for steering wheel |
| US20070080513A1 (en) * | 2003-10-15 | 2007-04-12 | Jurgen Osterlanger | Device for modifying the wheel camber of a wheel on a motor vehicle |
| DE102005043425A1 (en) * | 2005-09-13 | 2007-03-29 | Schaeffler Kg | Pivot bearing unit for rotatably supporting motor vehicle wheel, has wheel bearing support supporting roller bearing, where rotational movement of bearing together with motor vehicle wheel is made around steering axle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110997459A (en) * | 2017-08-08 | 2020-04-10 | Zf腓特烈斯哈芬股份公司 | Wheel suspension |
| CN110997459B (en) * | 2017-08-08 | 2022-06-28 | Zf腓特烈斯哈芬股份公司 | Wheel suspension |
| CN111656030A (en) * | 2018-04-03 | 2020-09-11 | 舍弗勒技术股份两合公司 | Joint bearing for a motor vehicle wheel module |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102009021472A1 (en) | 2010-11-18 |
| CN101920629B (en) | 2014-11-26 |
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