EP3548763A1 - Frein à disque pour véhicule utilitaire - Google Patents

Frein à disque pour véhicule utilitaire

Info

Publication number
EP3548763A1
EP3548763A1 EP17804559.7A EP17804559A EP3548763A1 EP 3548763 A1 EP3548763 A1 EP 3548763A1 EP 17804559 A EP17804559 A EP 17804559A EP 3548763 A1 EP3548763 A1 EP 3548763A1
Authority
EP
European Patent Office
Prior art keywords
guide rail
cap
disc brake
groove
rolling bellows
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.)
Withdrawn
Application number
EP17804559.7A
Other languages
German (de)
English (en)
Inventor
Alexander Asen
Jens Fricke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Original Assignee
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH filed Critical Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Publication of EP3548763A1 publication Critical patent/EP3548763A1/fr
Withdrawn legal-status Critical Current

Links

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.
  • Such disc brakes are used in particular for heavy commercial vehicles, wherein the brake caliper, also referred to as a sliding caliper, is mounted so as to be axially displaceable thereon by guide rails which are fastened to a vehicle-side brake carrier relative to a brake disk.
  • the guide rails as components of plain bearings are usually connected to the brake carrier by screwing.
  • One of the bearings is designed as a fixed bearing with a small sliding clearance, while the other forms a floating bearing, in particular to compensate for manufacturing tolerances.
  • the fixed bearing essentially performs the function of a main guide to ensure a smooth sliding in a brake application and a wear adjustment.
  • the floating bearing has a guide rail embracing and 29iebegeschreibt held in the caliper guide bush with an elastic inner sleeve, which consists of an elastomer.
  • the elasticity of the inner sleeve prevents the formation of rattling noises, as they can occur due to tolerances in floating bearings.
  • the elastomer inner sleeve offers further advantages in terms of its robustness and ease of assembly.
  • the rolling bellows is held by frictional engagement by means of a cap placed on the guide rail, this cap usually consisting of a sheet-metal shaped part which is inserted into the guide rail formed as a hollow shaft and a circumferential one , radially outwardly directed collar which serves as a stop for an end bead of the rolling bellows, said bead being clamped between the free, annular end face of the guide spar and the collar.
  • the invention has for its object to further develop a disc brake of the generic type so that their life is increased with structurally simple means.
  • the service life of the disc brake in which influenced by the sliding bearing or guide rails measure.
  • the then preferably made of sheet metal cap is frictionally held according to a variant of the invention on the guide rail with simultaneous pressing or squeezing of the bead of the rolling bellows in accordance with the invention provided circumferential groove of the guide rail.
  • the groove may be provided on the inner circumferential surface of the guide rail or on the outer lateral surface, wherein the bellows is guided in the arrangement of the bead in the inner circumferential groove so to speak around the free end face of the guide spar, which is a ring, while the cap , which is cup-shaped, is pressed into the guide rail, wherein the open side of the cap faces outward.
  • the cap With a radially outwardly directed circumferential collar, the cap is on the rolling bellows as well as with a part of its outer circumferential surface, while another part of the frictional connection with the guide rail is used.
  • the clear diameter of the guide rail in the inner overlap region of the rolling bellows is twice the thickness of the rolling bellows larger than the clear diameter of the region on which the cap rests with its outer circumferential surface frictionally.
  • the cap which is preferably made of plastic, is inserted as a stopper in the guide rail and is held in a frictional connection there, at least in the axial direction.
  • the cap may have positive-locking elements in its end region immersed in the guide rail, for example in the form of of radially resilient latching hooks, which correspond to a corresponding shape of the guide rail.
  • FIG. 2 a and b show in each case a part of the disk brake according to the state of the art.
  • a disc brake for a commercial vehicle according to the prior art is shown, with a brake disc 3 cross-caliper 2, which is connected to a brake carrier 1 of the commercial vehicle, based on the brake disc 3 axially displaceable.
  • the caliper 2 is held on plain bearings, one of which is designed as a fixed bearing 4 and the other as a floating bearing 5.
  • the floating bearing 5 shown in the Figure 2 as a detail of the disc brake according to the prior art has a guide rail 6, which is connected by means of a centrally performed cap screw 7 with the brake carrier 1.
  • the caliper 2 is displaceably mounted on the guide rail 6 by means of a guide bush held displaceably therein, wherein the guide bush has an elastic inner sleeve 9 and a metallic outer sleeve 8 enclosing the same, which engage in a saddle bore of the caliper 2 is pressed and on the outside with a circumferential collar on the caliper 2 is supported.
  • the inner sleeve 9 is made of a plastic, preferably an elastomer, and is molded onto the outer sleeve 8. On the inside, it is supported on the guide rail 6.
  • a rolling bellows 10 is provided which seals the guide rail 6 from the environment and which is held on the guide rail 6 on the one hand and on the guide bushing, for which the rolling bellows is integrally formed with the inner sleeve 9 ie, it is made of the same material.
  • the rolling bellows 10 is clamped with its free end by means of a cap 12, which covers a head of the cap screw 7 and which is pressed into the front side of the guide rail 6.
  • FIG. 2a and 2b show different positions of the brake caliper 2 to the brake carrier 1, wherein Fig. 2a shows a position with unworn, not shown brake pads and Fig. 2b shows the position of the caliper 2 with worn brake pads.
  • the brake caliper 2 is further moved to the brake carrier 1 out under extension of the rolling bellows 10th
  • Fig. 3 the head portion of the guide rail 6 is shown with pressed-cap 12, wherein according to the invention the bead 1 1 of the rolling bellows 10 rests in a circumferential groove 13 of the guide rail 6.
  • the cap 12 is pressed into the formed as a hollow cylinder guide rail 6 and held therein frictionally with simultaneous pressing of the bead 1 1 in the groove 13 such that there is a tight contact of the bead 1 1 both on the wall of the groove 13 as well as on the lateral surface the cap 12 results.
  • the outer side of the guide rail 6 fitting rolling bellows 10 is slipped around the annular end face of the guide rail 6, wherein the inside diameter of the guide rail 6 in the overlap region of the inner rolling bellows is greater than the groove 13 subsequent clear diameter of the guide rail, to which the cap 12th frictionally engaged.
  • FIG. 4 Another way of fixing the cap 12 is shown in FIG. 4 as a further embodiment variant.
  • This cap 12 is formed as a hollow plug, with an outwardly closed bottom, which merges into the collar 14.
  • the attachment of the rolling bellows 10 corresponds to that described for Figure 3. That is, the bead 1 1 is squeezed in the inner groove 13.
  • the closed bottom latching hooks 15 which are formed radially resiliently with a harpoon-like end, which is an undercut 16 of the guide rail engages behind.
  • this undercut 16 can likewise be formed as a groove, corresponding to the groove 13.
  • the cap 12 For a tight closure of the guide rail 6, the cap 12 is pressed onto the free end of the guide rail 6, so it is frictionally connected thereto.
  • a radially outwardly Asked and obliquely oriented skirt 17 is under contact pressure against the bead 1 1 of the rolling bellows, so that thereby also the sliding surface between the inner sleeve 9 and the guide rail 6 is reliably protected.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

L'invention concerne un frein à disque pour véhicule utilitaire, comportant un étrier de frein recouvrant un disque de frein et monté mobile axialement par rapport au disque de frein sur un support de frein fixe au moyen de deux longerons de guidage (6) chacun partie intégrante d'un palier lisse, un des paliers lisses étant réalisé sous la forme d'un palier fixe et l'autre palier lisse sous la forme d'un palier libre. Un soufflet roulant (10) placé au moins sur le longeron de guidage (6) du palier libre au niveau de sa partie d'extrémité opposée au support de frein entoure le longeron de guidage (6) sur toute sa circonférence, la partie d'extrémité du longeron de guidage (6) est fermée par un capuchon (12), et le disque de frein est configuré de telle manière que le soufflet roulant (10) est maintenu sur le longeron de guidage (6) par complémentarité de forme par son extrémité tournée vers le capuchon (12).
EP17804559.7A 2016-12-01 2017-11-28 Frein à disque pour véhicule utilitaire Withdrawn EP3548763A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016123215.7A DE102016123215A1 (de) 2016-12-01 2016-12-01 Scheibenbremse für ein Nutzfahrzeug
PCT/EP2017/080616 WO2018099893A1 (fr) 2016-12-01 2017-11-28 Frein à disque pour véhicule utilitaire

Publications (1)

Publication Number Publication Date
EP3548763A1 true EP3548763A1 (fr) 2019-10-09

Family

ID=60473544

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17804559.7A Withdrawn EP3548763A1 (fr) 2016-12-01 2017-11-28 Frein à disque pour véhicule utilitaire

Country Status (4)

Country Link
EP (1) EP3548763A1 (fr)
CN (1) CN110036219B (fr)
DE (1) DE102016123215A1 (fr)
WO (1) WO2018099893A1 (fr)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3418806A1 (de) * 1984-05-19 1985-11-21 Alfred Teves Gmbh, 6000 Frankfurt Schutzmanschette fuer zylindrische teile, insbesondere fuer eine bolzenfuehrung einer teilbelag-scheibenbremse
JPS60180832U (ja) * 1984-05-10 1985-11-30 アイシン精機株式会社 ピンスライド型デイスクブレ−キにおけるピンブ−ツの保護構造
DE3633337A1 (de) * 1986-10-01 1988-04-07 Teves Gmbh Alfred Bolzen- bzw. daempfungselement fuer schwimmsattel-teilbelagscheibenbremsen, insbesondere fuer kraftfahrzeuge
DE19636942C5 (de) * 1996-09-11 2010-07-29 Wabco Radbremsen Gmbh Gleitsattelscheibenbremse
DE10201901C5 (de) * 2002-01-19 2008-12-11 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Scheibenbremse, insbesondere für ein Nutzfahrzeug, mit Belagverschleißanzeige
DE102006050647A1 (de) 2006-10-24 2008-04-30 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Scheibenbremse, insbesondere für ein Nutzfahrzeug
US9592807B2 (en) * 2011-04-14 2017-03-14 Nabtesco Automotive Corporation Brake chamber, boot member, and bush member
DE102012006133A1 (de) 2012-03-26 2013-09-26 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Scheibenbremse, insbesondere für ein Nutzfahrzeug
DE102012010518A1 (de) * 2012-05-25 2013-11-28 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Balg einer Scheibenbremse und Scheibenbremse eines Nutzfahrzeugs
DE102012021690A1 (de) * 2012-11-07 2014-05-08 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Scheibenbremse für ein Nutzfahrzeug
CN203593041U (zh) * 2013-11-01 2014-05-14 上海采埃孚转向系统有限公司 一种转向机防尘罩与壳体的连接结构
GB2550379B (en) * 2016-05-18 2020-03-11 Mei Brakes Ltd Sealing arrangement for a sliding caliper

Also Published As

Publication number Publication date
WO2018099893A1 (fr) 2018-06-07
DE102016123215A1 (de) 2018-06-07
CN110036219B (zh) 2020-12-01
CN110036219A (zh) 2019-07-19

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