WO2023041252A1 - Scheibenbremse für ein nutzfahrzeug - Google Patents
Scheibenbremse für ein nutzfahrzeug Download PDFInfo
- Publication number
- WO2023041252A1 WO2023041252A1 PCT/EP2022/072278 EP2022072278W WO2023041252A1 WO 2023041252 A1 WO2023041252 A1 WO 2023041252A1 EP 2022072278 W EP2022072278 W EP 2022072278W WO 2023041252 A1 WO2023041252 A1 WO 2023041252A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- brake
- brake carrier
- projection
- disc brake
- carrier
- Prior art date
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000000284 resting effect Effects 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 2
- 229910000165 zinc phosphate Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 239000010959 steel Substances 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
- F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
- F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
- F16D55/226—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes
- F16D55/2265—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing
- F16D55/22655—Constructional details of guide pins
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
- F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
- F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
- F16D55/226—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes
- F16D55/2265—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing
- F16D55/227—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing by two or more pins
Definitions
- the invention relates to a disc brake for a commercial vehicle according to the preamble of claim 1.
- the brake caliper of a generic disc brake is slidably held on a brake carrier on the vehicle, for which purpose guide rails are provided, each consisting of a guide bush and a screw guided therein and screwed into a threaded bore of the stationary, i.e. vehicle-side brake carrier, usually in a brake carrier horn.
- the respective guide bush rests with an end face on the associated surface of the brake carrier, with a high-strength screw being used as the screw, which presses the guide bar against the brake carrier under pretension.
- Brake carriers are often used whose surface facing the guide bushes is provided with a friction-reducing coating, for example made of zinc phosphate.
- DE 10 2013 109 673 A1 proposes installing a securing element between the guide bush and the brake carrier To arrange the form of two wedge lock washers, the peripheral wedge surfaces engage in the sense of a toothing.
- the invention is based on the object of further developing a disc brake of the generic type in such a way that its functional and operational reliability is improved with little design and manufacturing complexity.
- the solution to the problem according to the invention consists in principle in increasing the surface pressure in the contact area of the guide bushing on the brake carrier, i.e. on the associated brake carrier horn, with the result of an increase in the coefficient of friction, which effectively prevents twisting of the guide bushing as long as the screw causes a corresponding contact pressure .
- This frictional connection is also given when the surface of the brake carrier in the contact area is provided with a coating that reduces the coefficient of friction, as described in the prior art, for example in the form of zinc phosphate.
- the guide bushing at least the projection according to the invention, consists of a harder material than the brake carrier, with either the guide bushing being made entirely of harder steel or the projection being harder as a result of appropriate treatment.
- the contact area between the guide bushing and the brake carrier for example, with a friction-increasing paste or with a hardening coating, the latter forming a contact surface in the contact area of the projection, possibly also in the adjacent area Area of the face of the guide bush.
- a friction-increasing paste or with a hardening coating the latter forming a contact surface in the contact area of the projection, possibly also in the adjacent area Area of the face of the guide bush.
- an insert that increases the coefficient of friction can be provided on the end face of the guide bush.
- the projection itself can be designed differently with regard to its cross-section, for example as a sharp-edged ridge with a triangular cross-section or as a projection with a flat surface. In any case, the higher surface pressure means that this projection digs into the brake carrier, so to speak.
- the arrangement of the projection can also be different.
- To center the guide bushing it is known to provide the end with a molded collar that is inserted into a countersink in the threaded bore of the brake carrier, while the annular contact surface of the guide bushing adjacent to the collar rests against the adjacent outer side of the brake carrier.
- the projection according to the invention is formed on the ring-shaped contact surface, alternatively on the outer edge area or approximately in the middle of the contact surface.
- this ridge can be designed in cross section as an isosceles triangle or only with a bevel.
- the burr in conjunction with the screw pretensioning force, causes a stress concentration radially outwards, i.e. on the contact surface of the guide bush and, via a maximum lever arm, a significant increase in the resistance moment in the torsional direction, compared to a moment acting from the outside on the guide rail.
- a particular advantage of the invention is also to be considered that the guide bushing can be produced with little outlay in terms of production technology, which is significant insofar as disc brakes are manufactured as series parts in large numbers.
- the invention therefore meets the requirements for cost optimization to a large extent. This is also helped by the fact that the guide bushing according to the invention can be retrofitted into brake carriers that have already been installed, so that a corresponding disc brake can be retrofitted, especially since no special processing of the brake carrier is required for this.
- FIG. 1 shows a brake carrier with mounted guide rails in a sectional, perspective view
- Fig. 2 shows the connection area of a guide bar with a
- Fig. 3 shows an enlarged section of the connection area, corresponding to indication III in Fig. 2
- FIG. 6 shows a further exemplary embodiment of the invention in the area where the guide bar is connected to a brake carrier
- FIG. 7 shows the guide bushing according to FIG. 6 in a perspective view.
- 1 shows a brake carrier 1 which is held stationary on a vehicle during operation and has brake carrier horns 5 lying opposite one another, on which brake pads (not shown) of a disc brake rest.
- Guide rails 2 are attached to two aligned opposite brake carrier horns 5, for which purpose a screw 4 is guided through a cylindrical guide bushing 3 of the guide rail 2 and screwed into a threaded bore 8 (FIG. 2) of the associated brake carrier horn 5.
- a brake caliper not shown, which is also known as a sliding caliper, is mounted in an axially displaceable manner on these guide rails 2 .
- a hexagon socket screw is preferably used as the screw 4 , the head of which rests in a depression in the guide bushing 3 .
- the guide bushing 3 On its front side facing the brake carrier 1 , the guide bushing 3 has, as can be seen very clearly in FIG.
- the end face of the guide bushing 3 facing the brake carrier horn 5, namely a contact surface 9 extending radially from the collar 6, has a circumferential projection 10, in the example designed as a ridge, which is arranged in the radial end region of the contact surface 9 assigned to the lateral surface of the guide bushing 3.
- FIG 3 shows the projection 10, which is triangular in cross section in the example, in an enlarged representation, it also being possible to see that the projection 10 is pressed into the surface of the brake carrier horn 5, with material deformation of the brake carrier 1.
- FIGS. 2 and 3 The example of the projection 10 shown in FIGS. 2 and 3 is shown again in FIG. 4, the formation of the projection 10 as a ridge being clearly recognizable.
- FIG. 5 which shows the end region of the guide bushing 3 provided with the projection 10
- the projection 10 designed as a ridge is formed approximately in the middle of the radial contact surface 9.
- FIGS. 6 and 7 show the connection area of the guide bushing 3 with the brake carrier horn 5 in section.
- Figure 7 which shows a view comparable to Figures 4 and 5, it can be seen that the projection 10 has a flat shape arranged on the outer edge area of the contact surface 9, resulting in a high surface pressure in the contact area of the projection 10 on the surface of the brake carrier horn 5 is reached.
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 |
---|---|---|---|
CN202280061256.6A CN117916483A (zh) | 2021-09-14 | 2022-08-08 | 用于商用车的盘式制动器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021123775.0A DE102021123775A1 (de) | 2021-09-14 | 2021-09-14 | Scheibenbremse für ein Nutzfahrzeug |
DE102021123775.0 | 2021-09-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023041252A1 true WO2023041252A1 (de) | 2023-03-23 |
Family
ID=83149257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2022/072278 WO2023041252A1 (de) | 2021-09-14 | 2022-08-08 | Scheibenbremse für ein nutzfahrzeug |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN117916483A (de) |
DE (1) | DE102021123775A1 (de) |
WO (1) | WO2023041252A1 (de) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10242102A1 (de) * | 2002-09-11 | 2004-03-25 | Continental Teves Ag & Co. Ohg | Führungsbolzen einer Schwimmsattel-Scheibenbremse |
WO2014009456A2 (de) * | 2012-07-13 | 2014-01-16 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Scheibenbremse für ein nutzfahrzeug |
DE102012021690A1 (de) * | 2012-11-07 | 2014-05-08 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Scheibenbremse für ein Nutzfahrzeug |
DE102013109673A1 (de) | 2013-09-05 | 2015-03-05 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Scheibenbremse für ein Nutzfahrzeug |
WO2017076529A1 (de) * | 2015-11-05 | 2017-05-11 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Scheibenbremse für ein nutzfahrzeug |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5852308U (ja) | 1981-10-06 | 1983-04-09 | 佐藤 久美 | 溶接ネジ |
US4827756A (en) | 1987-01-09 | 1989-05-09 | Textron Inc. | Fastener fabrication method |
GB2298156A (en) | 1995-02-24 | 1996-08-28 | Avdel Systems Ltd | Fastener for securing panels |
DE102012006081B4 (de) | 2012-03-26 | 2015-04-30 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Scheibenbremse eines Nutzfahrzeugs und Führungsholm |
-
2021
- 2021-09-14 DE DE102021123775.0A patent/DE102021123775A1/de active Pending
-
2022
- 2022-08-08 CN CN202280061256.6A patent/CN117916483A/zh active Pending
- 2022-08-08 WO PCT/EP2022/072278 patent/WO2023041252A1/de active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10242102A1 (de) * | 2002-09-11 | 2004-03-25 | Continental Teves Ag & Co. Ohg | Führungsbolzen einer Schwimmsattel-Scheibenbremse |
WO2014009456A2 (de) * | 2012-07-13 | 2014-01-16 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Scheibenbremse für ein nutzfahrzeug |
DE102012021690A1 (de) * | 2012-11-07 | 2014-05-08 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Scheibenbremse für ein Nutzfahrzeug |
DE102013109673A1 (de) | 2013-09-05 | 2015-03-05 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Scheibenbremse für ein Nutzfahrzeug |
WO2017076529A1 (de) * | 2015-11-05 | 2017-05-11 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Scheibenbremse für ein nutzfahrzeug |
Also Published As
Publication number | Publication date |
---|---|
CN117916483A (zh) | 2024-04-19 |
DE102021123775A1 (de) | 2023-03-16 |
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