CN103443493B - For the brake disc of ground vehicle and especially have the ground vehicle of this kind of brake disc - Google Patents
For the brake disc of ground vehicle and especially have the ground vehicle of this kind of brake disc Download PDFInfo
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- CN103443493B CN103443493B CN201280016162.3A CN201280016162A CN103443493B CN 103443493 B CN103443493 B CN 103443493B CN 201280016162 A CN201280016162 A CN 201280016162A CN 103443493 B CN103443493 B CN 103443493B
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- flange
- brake disc
- dish
- rotary shaft
- flange face
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- 230000001154 acute Effects 0.000 claims abstract description 5
- 238000009423 ventilation Methods 0.000 claims description 3
- 210000003414 Extremities Anatomy 0.000 claims 2
- 230000000875 corresponding Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 206010011376 Crepitations Diseases 0.000 description 1
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003466 anti-cipated Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910000499 pig iron Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Abstract
The present invention relates to a kind of for ground vehicle, the especially brake disc of commerial vehicle, including rotary shaft (A), drag ring (I), dish cylinder (4) and for vehicle hub being carried out the dish flange (5) of Flange joint, its mid-game flange has flange face (6), and this flange face forms acute angle with the normal of rotary shaft when not carrying out Flange joint in the longitudinal section plane comprising rotary shaft.
Description
Technical field
The present invention relates to a kind of brake disc for ground vehicle, especially commerial vehicle, including rotary shaft, drag ring, dish cylinder and for vehicle hub carries out the dish flange of Flange joint, its mid-game flange has flange face.
Background technology
The brake disc of the above-mentioned type is known.Wherein, the both sides of drag ring have rubbing surface.Connecting on drag ring and have along rotary shaft axially extended dish cylinder, dish flange radially extends.
Drag ring, dish cylinder and dish flange can in pairs or three is integrally formed mutually.It can be the foundry goods that such as grey cast-iron or the pig iron are made.
Dish flange has the most multiple (screw thread) hole, is somebody's turn to do (screw thread) pore size distribution periphery at dish flange.Generally (screw thread) hole axially extends.Should be used for dish flange Flange joint to the wheel hub of vehicle in (screw thread) hole, be attached generally by means of bolt, such as, use bolt to be screwed in screwed hole.
Under normal circumstances, being no matter the flange face of dish flange, or the flange face of wheel hub is plane, wherein, two described flange faces are each perpendicular to rotary shaft and extend.
Connected by above-mentioned axial bolts, by time on brake disc Flange joint to wheel flange, exist between two flange faces and be frictionally engaged, so that the moment occurred when braking is delivered on wheel hub essentially by frictionally engaging within contact area.
In order to form enough frictional engagements, especially in the case of commercial vehicle brake dish, use higher screw-down torque according to dish size and Bolt sizes.While it is true, the not enough situation that is frictionally engaged still cannot be got rid of.In this case, there is gap in the inwall in the hole passed through due to bolt, thus causes producing between dish and wheel hub relative movement, if such as forming higher braking moment on the disc brake rotor the most forwardly and rearwardly time so that be frictionally engaged and be pressed.
Due to the high requirement of brake disc, in use, the especially transitional region between dish flange and dish cylinder, namely the radial inner region at dish flange can form high compressive stress.When being fixed in using bolt-inserting hole, this important area is usually located at the inner radial in hole.As a result of which it is, wearing and tearing more by force of breach or penetrated crack shape occurs in the inner diameter zone of the flange face of dish flange.
Due to the limited space that can be provided by, therefore cannot such as by the usage amount improving material, the brake disc of above-mentioned important area be reinforced.Additionally, raising materials'use amount also results in weight and increases accordingly.
Summary of the invention
It is an object of the invention to, the brake disc of the above-mentioned type is carried out continual exploitation so that it is high capacity and the requirement of high braking moment can be met, reduce its space as far as possible and its weight is down to minimum simultaneously.
According to the present invention, above-mentioned purpose solves in the following manner, and flange face is when non-Flange joint, and in the longitudinal section plane comprising rotary shaft, the normal with rotary shaft forms acute angle.
In other words, the radial outer region of flange face is axially extended relative to the radial inner region of flange face.Now, if brake disc Flange joint is on wheel hub, the radial outer region of dish flange has bigger clamping force than radial inner region.The compressive stress fed back at flange connections moves to radial outer region from the radial inner region of above-mentioned important dish flange, so that the risk forming crackle significantly reduces.
In other words, according to the flange face of the dish flange of the present invention on Flange joint to wheel hub but be in do not clamp time, in the longitudinal section plane comprising rotary shaft, form the wedge-like gap radially-inwardly opened or gap.If this gap or gap are by clamping, namely closed by corresponding axial bolts, then the stress being consequently formed and pressure almost can occur only radial outer region, and on the contrary, the load of important radial inner region declines.
Except removing the compressive stress of important area, pass through the present invention, it is also possible to increasing the effective radius of the braking moment transmission formed by frictional engagement, this can prevent brake disc relative to the relative movement between wheel flange.
In accordance with the present invention it is preferred that, above-mentioned acute angle is more than 0.2 °.Advantageously, this acute angle, between 0.2 ° to 3.5 °, is preferably ranges between 0.5 ° to 1.5 °, between 0.8 ° to 1.2 °.
According to the present invention it is highly preferred that in the plane of longitudinal section, the radial inner region of flange face is than plane near the rubbing surface place of brake disc of the radial outer region of flange face.
Compressive stress can be formed at the radial outer region of dish flange by this structure to shift.
According to the present invention, dish flange more preferably has at least one projection extending radially outwardly and having flange face along rotary shaft under overlooking.
In other words, according to the structure of the present invention, dish flange is not at its whole periphery, but only expands in local radial and absorb above-mentioned compressive stress in this radial flared region.Advantageously, in this case, clamping device, such as bolt through flange be positioned at this raised areas run through opening accordingly, in order to projection is clamped.
The present invention is not limited in a projection.On the contrary, in accordance with the present invention it is preferred that, dish flange has, under overlooking, the undulatory exterior contour comprising multiple projection along rotary shaft, and has the groove between two projections, and wherein, projection is respectively provided with the opening of the fixing device for accommodating stationary hub.
For this structure, using multiple fixing device, such as form is through the bolt running through opening accordingly, and at the fixing device of this class, dish flange radially expands, in order to form the special area for absorbing the compressive stress formed by means of fixing device.
According to the present invention, dish flange, dish cylinder and drag ring can arbitrarily be formed in principle, and can arbitrarily be combined.But according to the present invention preferably, dish flange and dish cylinder form and/or dish cylinder and drag ring form.
For the brake disc of commerial vehicle, the present invention is the most meaningful when dish has bigger diameter.In accordance with the present invention it is preferred that, a diameter of 375mm to 525mm of dish, more preferably 376mm, 430mm, 432mm, 433mm or 525mm.
In accordance with the present invention it is preferred that, brake disc is inner ventilation.
Except brake disc detailed above, the present invention also creates a kind of ground vehicle, especially commerial vehicle, including the wheel hub with the first flange face, there is rotary shaft and the brake disc of the second flange face, time on brake disc Flange joint to wheel hub, the second flange face is resisted against on the first flange face, and when being in Flange joint state for clamping the device of brake disc and wheel hub.To this, for solving above-mentioned purpose, according to when the invention enables two flange faces at Flange joint but do not clamp each other at the longitudinal section graphic memory comprising rotary shaft in the wedge-like gap radially-inwardly opened, and two flange faces abut in the clamp state.
Ground vehicle according to the present invention has brake disc detailed above.
Accompanying drawing explanation
Hereinafter, according to preferred embodiment, the present invention is described in greater detail with reference to the attached drawings；Wherein:
Fig. 1 is the longitudinal sectional view of the brake disc of a kind of embodiment according to the present invention comprising wheel hub shown in broken lines；
Fig. 2 is the axonometric chart of the brake disc according to Fig. 1；
Fig. 3 is the top view of the brake disc according to Fig. 1；
Fig. 4 is the schematic diagram of the part of existing brake disc and appropriate section according to the brake disc under clamped condition during the Flange joint of the present invention.
Detailed description of the invention
Brake disc whole use reference 1 shown in accompanying drawing indicates.This brake disc comprises two drag rings, this drag ring is such as interconnected in the case of forming cooling duct by connection sheet, lateral pin, crossbeam or other devices, drag ring also has two rubbing surfaces 2,3 simultaneously, when braking with accompanying drawing not shown in the brake lining of disk brake press together.The rotary shaft of brake disc 1 indicates with A.
Brake disc 1 has dish cylinder 4, and this dish cylinder such as forms with the drag ring comprising rubbing surface 3.
Dish cylinder 4 have in its one end with its one and the dish flange 5 with flange face 6 that extends radially outward.Dish flange 5 has undulatory exterior contour in the view of Fig. 3, and this profile forms projection 8.1 at its crest, forms groove 8.2 at its trough.Crest or projection 8.1 have at least one through hole 7.
Crest or projection 8.1 and trough or the size of groove 8.2, shape and radius of curvature can be symmetrical, it is also possible to asymmetric, because its design or size depend on size and the anticipated duty of brake disc.Therefore relevant to intended purpose.Can form substantial amounts of contact area by its undulatory shape, this contact area is collectively forming the flange face 6 of dish flange 5.Flange face 6 forms the conical surface, because this flange face forms angle α with the normal of rotary shaft A in described embodiment, this angle is 1.0 ° in described embodiment.
The dish flange 5 with the flange face 6 forming angle α is relative with the wheel hub 11 comprising smooth, to be perpendicular to rotary shaft A flange face 10 shown in dotted line in FIG.Wherein, wheel hub 11 has the cloth hole consistent with the cloth hole of dish flange 5, so that connect 9 by means of bolt to form Flange joint when power engages.Depending on bolted type and its implementation process need according to circumstances.For the embodiment shown in figure, bolt is through the corresponding opening in wheel hub 11, and tights a bolt running through in opening 7 of screwed hole being designed as.The shapes/configurations of wheel hub also depends on service condition, but wheel hub always comprises flange face 10.It should be noted that this according to service condition, this flange face 10 does not Qiang Zhiyaoqiu and is perpendicular to rotary shaft A, but may be constructed the corresponding contact surface of approach angle α trend, and keeps this differential seat angle, in order to form wedge-like gap in longitudinal section.May be otherwise by selecting corresponding angle α to obtain the effect according to the present invention.
If two flange faces 6 and 10 are the most mutually bolted together according to Fig. 1, then the angular slit between two described flange faces can be adjusted, and this angle is angle of attack α.The size of angle α is similarly dependent on the service condition of brake disc, size and material, and the angle being about 1.0 ° the most shown is only many one planted in example.Wedge-like gap between two flange faces 10 and 6 is opened radially inward.
If brake disc 1 and wheel hub 11 are bolted together, along with the deformation of dish flange 5 makes the gap between two flange faces 10 and 6 close.The compressive stress being consequently formed substantially occurs in the radial outer region 6.1 of flange face 6, and on the contrary, radial inner region 6.2 is substantially not subjected to stress.That thus often occur on dish cylinder 4, important, disadvantageous compressive stress is reduced to minimum or is completely eliminated.
With regard to this, with reference to the comparison diagram of Fig. 4, the compressive stress shown in it, existing brake disc (upper figure) is more or less evenly distributed in flange region 6, on the contrary, it is concentrated mainly at radial outer region 6.1 in the structure of the brake disc (figure below) according to this invention.Radial outer region 6.1 is made up of crest or projection 8.1, and its task especially absorbs above-mentioned compressive stress, in order to can protect important area mentioned above.
Brake disc mentioned above is integrated.But can be used for the brake disc without inner ventilation device, the most solid brake disc according to technical scheme.If brake disc cylinder and drag ring are linked together, it is also possible to realized the structure of its integration by compound foundry goods.May be otherwise use such as bolt connect and/or the suitable connected mode of other shapes because all of brake disc structure have in common that it is fixed on wheel hub by means of radial flange region.Radial flange region can also extend radially inwardly, because thus can also realize the flange structure according to the present invention.Certainly, in this case, each projection (running through flange or crest) is radially inwardly extending, the compressive stress that the flange region extended radially inwardly is occurred for absorption.
No matter inventive feature disclosed in description above, claims and accompanying drawing is individually or to be combined in any way, is respectively provided with significance for realizing the different embodiments of the present invention.
Claims (16)
1. for a brake disc for ground vehicle, including:
Rotary shaft (A),
Drag ring,
Dish cylinder (4), and
For vehicle hub carries out the dish flange (5) of Flange joint when clamping, its mid-game flange has flange face (6), this flange face (6) under Flange joint state against the flange face of wheel hub,
It is characterized in that,
This flange face (6) forms acute angle (α) with the normal of rotary shaft when not carrying out Flange joint in the longitudinal section plane comprising rotary shaft and forms the conical surface,
Under Flange joint state, the radial extremity region of described dish flange has bigger clamping force than the transitional region between described dish flange and described dish cylinder.
Brake disc the most according to claim 1, it is characterised in that described ground vehicle is commerial vehicle.
Brake disc the most according to claim 1 and 2, it is characterised in that angle (α) is more than 0.2 °.
Brake disc the most according to claim 1 and 2, it is characterised in that angle (α) is between 0.2 ° to 3.5 °.
Brake disc the most according to claim 4, it is characterised in that angle (α) is between 0.5 ° to 1.5 °.
Brake disc the most according to claim 5, it is characterised in that angle (α) is between 0.8 ° to 1.2 °.
Brake disc the most according to claim 1 and 2, it is characterised in that the plane at rubbing surface (3) place of the brake disc more close than the radial outer region (6.1) of flange face (6) of the radial inner region (6.2) in plane inner flange face, longitudinal section (6).
Brake disc the most according to claim 1 and 2, it is characterised in that dish flange (5) has at least one projection (8.1) extending radially outwardly and having flange face (6) along rotary shaft (A) under overlooking.
Brake disc the most according to claim 1 and 2, it is characterized in that, dish flange (5) has, under overlooking, the undulatory exterior contour comprising multiple projection (8.1) along rotary shaft (A), and there is the groove (8.2) between two projections, wherein, projection is respectively provided with the opening (7) of the fixing device for accommodating stationary hub.
Brake disc the most according to claim 1 and 2, it is characterised in that dish flange (5) and dish cylinder (4) form and/or dish cylinder and drag ring form.
11. brake discs according to claim 1 and 2, it is characterised in that dish diameter is between 375mm to 525mm.
12. brake discs according to claim 11, it is characterised in that dish a diameter of 375mm, 430mm, 432mm, 433mm or 525mm.
13. brake discs according to claim 1 and 2, it is characterised in that brake disc is inner ventilation.
14. 1 kinds of ground vehicles, including:
There is the wheel hub (11) of the first flange face (10),
There is the brake disc (1) of rotary shaft (A) and the second flange face (6), the second flange face when brake disc is installed on wheel hub against the first flange face, and
In the mounted state for clamping the device of brake disc and wheel hub,
It is characterized in that,
Second flange face is the conical surface, and
Two flange faces under undamped state each other at the longitudinal section graphic memory comprising rotary shaft in the wedge-like gap radially-inwardly opened, and in the clamp state, two flange faces abut, and the radial extremity region of dish flange has bigger clamping force than the transitional region between dish flange and dish cylinder.
15. ground vehicles according to claim 14, it is characterised in that described ground vehicle is commerial vehicle.
16., according to the ground vehicle described in claims 14 or 15, have according to the brake disc according to any one of claim 1 to 13.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011016029.9 | 2011-04-04 | ||
| DE102011016029A DE102011016029B4 (en) | 2011-04-04 | 2011-04-04 | Brake disc for a land vehicle and land vehicle, in particular with such a brake disc |
| PCT/EP2012/001292 WO2012136316A1 (en) | 2011-04-04 | 2012-03-23 | Brake disc for a land vehicle, and land vehicle, in particular with a brake disc of this type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103443493A CN103443493A (en) | 2013-12-11 |
| CN103443493B true CN103443493B (en) | 2016-11-30 |
Family
ID=
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1761822A (en) * | 2003-03-18 | 2006-04-19 | 克诺尔商用车制动***有限公司 | Disk brake, especially for commercial vehicles |
| JP4071116B2 (en) * | 2001-04-30 | 2008-04-02 | クノル−ブレムゼ ジステーメ フューア ヌッツファールツォイゲ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Wheel hub |
| CN101524990A (en) * | 2008-03-03 | 2009-09-09 | 统一麦特考公司 | A disk rotor piloting feature, outside diameter piloting feature and outside diameter disk rotor piloting feature |
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4071116B2 (en) * | 2001-04-30 | 2008-04-02 | クノル−ブレムゼ ジステーメ フューア ヌッツファールツォイゲ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Wheel hub |
| CN1761822A (en) * | 2003-03-18 | 2006-04-19 | 克诺尔商用车制动***有限公司 | Disk brake, especially for commercial vehicles |
| CN101524990A (en) * | 2008-03-03 | 2009-09-09 | 统一麦特考公司 | A disk rotor piloting feature, outside diameter piloting feature and outside diameter disk rotor piloting feature |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| CB03 | Change of inventor or designer information |
Inventor after: KLOOS EUGEN Inventor before: Kloss Eugen |
|
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |