EP3137785A1 - Garniture de friction pour freins industriels et éléments d'entraînement, et procédé de fabrication d'une garniture de friction pour freins industriels et éléments d'entraînement - Google Patents

Garniture de friction pour freins industriels et éléments d'entraînement, et procédé de fabrication d'une garniture de friction pour freins industriels et éléments d'entraînement

Info

Publication number
EP3137785A1
EP3137785A1 EP15730950.1A EP15730950A EP3137785A1 EP 3137785 A1 EP3137785 A1 EP 3137785A1 EP 15730950 A EP15730950 A EP 15730950A EP 3137785 A1 EP3137785 A1 EP 3137785A1
Authority
EP
European Patent Office
Prior art keywords
friction
layer
friction lining
carrier layer
drive elements
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Withdrawn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
EP15730950.1A
Other languages
German (de)
English (en)
Inventor
Vera RÜHRUP
Frank Steinhauer
Thorsten Weyel
Christian Spandern
Daniel MEISSNER
Stefan Löhr
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
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 Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of EP3137785A1 publication Critical patent/EP3137785A1/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Withdrawn legal-status Critical Current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
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/02—Composition of linings ; Methods of manufacturing
    • F16D69/025—Compositions based on an organic binder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/22—Making multilayered or multicoloured articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2009/00—Use of rubber derived from conjugated dienes, as moulding material
    • B29K2009/06—SB polymers, i.e. butadiene-styrene polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/007—Hardness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0078—Shear strength
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/16—Frictional elements, e.g. brake or clutch linings
    • 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
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D2069/005—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces having a layered structure
    • 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
    • F16D2200/00—Materials; Production methods therefor
    • F16D2200/0034—Materials; Production methods therefor non-metallic
    • F16D2200/0056—Elastomers
    • 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
    • F16D2250/00—Manufacturing; Assembly
    • F16D2250/0038—Surface treatment

Definitions

  • the invention relates to a friction lining for Industhebremsen and drive elements with a two-layer structure, wherein a friction layer is connected to a carrier layer, and a method for producing a two-ply friction lining.
  • Friction linings in industrial brakes and industrial drive elements serve to hold a static load (holding brakes), to brake a rotational movement (dynamic brakes) or to adjust relative movements (couplings).
  • a two-layer friction material is known, which consists of a fibrous base material.
  • This fibrous base has a first layer and a second layer which are bonded together during a papermaking wet process.
  • a first layer of friction material is formed, which comprises fibers and / or fillers and / or friction particles.
  • a second layer of friction material also includes fibers and / or fillers and / or friction parts and is formed on top of the first layer.
  • Such a friction material is particularly suitable for use in modern transmission systems and brake systems in the automotive industry, where it is preferably used in wet clutch systems.
  • DE 10 201 1 000 720 A1 discloses a friction brake for elevators with improved damping properties, in which a fork-like brake lining comprises a rail during a braking operation.
  • the brake lining is there formed with a single layer.
  • Damping elements are arranged laterally next to the brake pads, which largely prevent grinding of the brake pads in the released state of the brake on the rail,
  • the invention is therefore an object of the invention to provide a friction lining for industrial brakes and industrial drive elements, which has good frictional properties and largely prevented Reibreteinbrüche and / or increased wear of the industrial brake.
  • the object is achieved in that the carrier layer is formed own spring and the friction layer and / or the carrier layer consist of a plastic-elastomer composite.
  • the carrier layer comprises 10% to 40% elastomer, 0% to 20% resins and 40% to 80% fillers, while the friction layer comprises 0% to 25% elastomer, 5% to 30% resins and 45% contains up to 70% fillers and additives.
  • This composition of the respective plastic elastomer composite for carrier layer or friction layer fulfills the properties imposed on it when using friction linings for industrial brakes and drive elements, such as industrial couplings.
  • the elastomer of the carrier layer is a rubber.
  • Such a rubber preferably an SBR rubber (styrene-butadiene rubber) has a particularly good resilience in the application.
  • the carrier layer in the finished state of the friction lining has a Shore hardness of not more than 100 ShD. By means of this maximum hardness, it is ensured that the carrier layer has sufficient inherent resilience. The ideal hardness depends on the application, the contact pressure and the friction layer used.
  • the carrier layer has a shear strength of at least 1 N / mm 2 in the finished state of the friction lining. By means of this shear strength a high load capacity of the carrier layer against shearing is ensured in the forces occurring during the braking process.
  • the friction layer has grooves. By means of such grooves, the individual segments of the friction layer are decoupled and can each align ideally, which entails a better torque transmission through the friction lining.
  • the friction layer is partially or completely separated by the grooves.
  • a development of the invention relates to a method for producing a two-ply friction lining for industrial brakes and drive elements, in which a friction layer is connected to a carrier layer.
  • the friction layer or the self-springing carrier layer to be formed is produced in a pre-pressing process as a semi-finished part, to which a granulate-like base material of the carrier layer or the friction layer is applied, which is hot-pressed with the semi-finished part.
  • a stable friction lining for industrial brakes and drive elements can be produced.
  • the friction layer or the carrier layer is hot or cold pressed or rolled and punched out to produce the semi-finished part. This procedure can be selected depending on the application.
  • both backing layer and friction layer are produced as a semi-finished part and then joined together in a hot pressing process.
  • a further development of the invention relates to a method for producing a two-layer friction lining for industrial brakes and drive elements, in which a friction layer is connected to a carrier layer.
  • the friction layer and the self-springing carrier layer to be formed are manufactured separately from each other as a semi-finished part, wherein the hardened semi-finished parts are then glued.
  • Fig. 2 is a plan view of the friction layer of the friction lining according to the invention.
  • a friction lining 1 in Fig. 1, is shown, which is annular.
  • the friction lining 1 consists of two layers, a friction layer 2 and a carrier layer 3, which may also be referred to as an underlay.
  • the two-layer friction lining 1 is mounted in the application on the carrier layer 3 on a rigid rotor of the industrial brake or the drive element, such as a clutch.
  • the friction layer 2 is a plastic-elastomer composite that ranges from 0% to 25%
  • Elastomer in the form of rubber and 5% to 30% resins. It has filler proportions between 45% and 70%.
  • the plastic-elastomer composite composing the carrier layer 3 is a composite of SBR rubber, the proportion of which is between 10% to 40%. In addition, between 0% to 20% resins and 40% to 80% fillers are contained.
  • the carrier layer 3 in the finished state has a hardness of not more than 80 ShD, preferably less than 60 ShD, in order to ensure adequate inherent resilience of the carrier layer. The ideal hardness depends on the application, the contact pressure and the friction layer used.
  • the carrier layer 3 has a shear strength which is adapted according to the shear and rotational forces occurring in the application, but is above 1 N / mm 2 , preferably above 2 N / mm 2 . Both layers 2, 3 are adapted to each other so that they can be securely connected together.
  • the friction layer 2 has grooves 4 at regular intervals on its surface, which grooves penetrate the friction layer 2 approximately completely in the depth.
  • the groove base 5 is narrower than the opening of the groove 4 on the surface of the friction layer 2.
  • the friction lining 1 described can be produced as follows.
  • the carrier layer 3 is hot-pressed or cold-pressed.
  • the carrier layer 3 can be rolled and punched out.
  • the carrier layer 3 thus produced as a semi-finished part is pressed with a ready-mixed mixture for the friction layer 2 in a hot press.
  • the ready mix for the friction layer 2 consists of a granulate-like base material.
  • the friction layer 2 may be hot pressed or cold pressed or rolled and punched out of the granule-like base material and thus formed into a semi-finished part.
  • the friction layer 2 and the carrier layer 3 can be braced, conically braced or loosely cured.
  • the friction layer 2 and the carrier layer 3 can be produced separately from one another as semi-finished parts and hot-pressed directly together.
  • the semi-finished parts can also be cured and then glued together.
  • the double-layered friction linings 1 can be produced with defined thickness ratios between the friction layer 2 and the carrier layer 3.
  • a secure connection between the two layers 2, 3 ensured by joining or direct compression of the materials.
  • the resulting friction linings 1 have a sufficiently small plate to be able to use them easily in existing manufacturing processes of industrial brakes can.

Landscapes

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

Abstract

L'invention concerne une garniture de friction pour freins industriels et éléments d'entraînement pourvue d'une structure bicouche, une couche de friction (2) étant reliée à une couche de support (3). Selon l'invention, dans une garniture de friction convenant particulièrement à des applications industrielles, la couche de support (3) présente des propriétés élastiques intrinsèques et la couche de friction (2) et/ou la couche de support (3) sont réalisées en un composite plastique-élastomère.
EP15730950.1A 2014-04-28 2015-04-23 Garniture de friction pour freins industriels et éléments d'entraînement, et procédé de fabrication d'une garniture de friction pour freins industriels et éléments d'entraînement Withdrawn EP3137785A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102014207968 2014-04-28
DE102014213779 2014-07-16
PCT/DE2015/200274 WO2015165461A1 (fr) 2014-04-28 2015-04-23 Garniture de friction pour freins industriels et éléments d'entraînement, et procédé de fabrication d'une garniture de friction pour freins industriels et éléments d'entraînement

Publications (1)

Publication Number Publication Date
EP3137785A1 true EP3137785A1 (fr) 2017-03-08

Family

ID=53483636

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15730950.1A Withdrawn EP3137785A1 (fr) 2014-04-28 2015-04-23 Garniture de friction pour freins industriels et éléments d'entraînement, et procédé de fabrication d'une garniture de friction pour freins industriels et éléments d'entraînement

Country Status (5)

Country Link
US (1) US20170030425A1 (fr)
EP (1) EP3137785A1 (fr)
CN (1) CN106415050A (fr)
DE (1) DE112015002029A5 (fr)
WO (1) WO2015165461A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018177471A1 (fr) 2017-03-28 2018-10-04 Schaeffler Technologies AG & Co. KG Élément de friction
DE102017121431A1 (de) 2017-09-15 2019-03-21 Schaeffler Technologies AG & Co. KG Drehmomentbegrenzer für einen Antriebsstrang
US10816043B2 (en) * 2018-03-06 2020-10-27 Schaeffler Technologies AG & Co. KG Method of forming wet friction material by burning off fibers

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0669482A2 (fr) * 1994-02-25 1995-08-30 HOERBIGER & Co. Garniture de friction
US20020038743A1 (en) * 2000-08-10 2002-04-04 Sumitomo (Sei) Brake Systems, Inc. Pad for disk brake

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3231058A (en) * 1962-02-19 1966-01-25 Raybestos Manhattan Inc Friction device
US3365041A (en) * 1965-10-21 1968-01-23 Raybestos Manhattan Inc Clutch facing
US3751330A (en) * 1971-03-15 1973-08-07 Abex Corp Railroad brake shoes
FR2406128A1 (fr) * 1977-07-25 1979-05-11 Abex Pagid Equip Procede de fabrication de garnitures pour freins a disques
FR2681925B1 (fr) * 1991-10-01 1997-09-05 Flertex Sa Plaquette de frein a disque pour chemin de fer.
FR2697306B1 (fr) * 1992-10-26 1994-12-09 Valeo Disque de friction d'embrayage, notamment pour véhicule automobile.
DE19543329A1 (de) * 1995-11-21 1997-05-22 Frimatec Ingenieurgesellschaft Verfahren zur Herstellung von Reibbelägen
CA2202432C (fr) 1996-05-17 2006-09-12 Marc A. Yesnik Materiau de friction bi-pli
JP5183900B2 (ja) * 2005-11-14 2013-04-17 曙ブレーキ工業株式会社 ノンアスベスト摩擦部材
EP2236851A1 (fr) * 2009-03-31 2010-10-06 Carl Freudenberg KG Armature d'embrayage
DE102011000720A1 (de) 2011-02-14 2012-08-16 Klaus-Peter Kapp Reibungsbremse für Aufzüge mit verbesserten Dämpfungseigenschaften

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0669482A2 (fr) * 1994-02-25 1995-08-30 HOERBIGER & Co. Garniture de friction
US20020038743A1 (en) * 2000-08-10 2002-04-04 Sumitomo (Sei) Brake Systems, Inc. Pad for disk brake

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2015165461A1 *

Also Published As

Publication number Publication date
US20170030425A1 (en) 2017-02-02
CN106415050A (zh) 2017-02-15
WO2015165461A1 (fr) 2015-11-05
DE112015002029A5 (de) 2017-03-02

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