WO2022010435A1 - Innovation de nouveau disque de frein et moyeu de roue pour véhicules utilitaires lourds - Google Patents

Innovation de nouveau disque de frein et moyeu de roue pour véhicules utilitaires lourds Download PDF

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Publication number
WO2022010435A1
WO2022010435A1 PCT/TR2021/050374 TR2021050374W WO2022010435A1 WO 2022010435 A1 WO2022010435 A1 WO 2022010435A1 TR 2021050374 W TR2021050374 W TR 2021050374W WO 2022010435 A1 WO2022010435 A1 WO 2022010435A1
Authority
WO
WIPO (PCT)
Prior art keywords
wheel hub
disc
brake disc
connection
integrated brake
Prior art date
Application number
PCT/TR2021/050374
Other languages
English (en)
Inventor
Bariş Yilmaz
Ibrahim Can GULERYUZ
Original Assignee
Ege Fren Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇
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 Ege Fren Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ filed Critical Ege Fren Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇
Publication of WO2022010435A1 publication Critical patent/WO2022010435A1/fr

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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
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/12—Discs; Drums for disc brakes
    • F16D65/123—Discs; Drums for disc brakes comprising an annular disc secured to a hub member; Discs characterised by means for mounting
    • 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
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/1304—Structure
    • F16D2065/1328—Structure internal cavities, e.g. cooling channels
    • 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
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/134—Connection
    • F16D2065/1384—Connection to wheel hub
    • 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
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/134—Connection
    • F16D2065/1392—Connection elements

Definitions

  • the invention is related to the brake disc and wheel hub group. Whit this invention, a weight and cost advantage is provided compared to the state of the art, and integrated brake disc and wheel hub with long lasting and ventilation feature, that are more resistant to structural and thermal loads have been obtained. State of the Art
  • FIG-6 The state of the art brake disc and wheel hub connection, currently used in heavy duty vehicles is shown in Figure-6.
  • the wheel hub and conventional brake disc is assembled by using mounting bolts.
  • a conventional brake disc with a bell shaped connection geometry causes the weight of the disc and wheel hub combined weight to be high. High unsprung mass caused by this design adversely affects the driving comfort of the vehicle and causes high exhaust emissions and fuel consumption.
  • the material of the bell area of a conventional brake disc is cast iron with lamellar graphite which is same as the section of the friction rings and the ventilation vanes. Although these two section has the same material. They have different functions on the disc.
  • the bell is a load bearing section but the friction rings and ventilation vanes has the duty of heat transfer. For this reason, structurally the weakest part on the brake disc is the bell section and the majority of user complaints consist of brake discs damaged from the bell section.
  • the joint area design of the invention provides high-speed air flow around the disc ventilation vanes according to the state of the art shown in Figure-6 and Figure-7.
  • the air flow on the rim side is significantly accelerated thanks to the bosses in the wheel hub joint area. Thanks to the geometric gaps in the inner diameter of the disc, it directs the air on the suspension side of the vehicle to the disc ventilation vanes opening to the rim side.
  • a significant increase is achieved in the convective heat transfer and the average convective heat transfer coefficient of the brake disc. With the increase in the average convective heat transfer coefficient, the cooling period of the brake disc is significantly shortened.
  • the invention can also be used for different heavy-duty vehicles, trailers and high speed trains by making some modifications. Therefore, the advantages of the invention are as follows:
  • FIG. 1 I ntegrated Brake Disc and Wheel Hub Connected
  • Figure-2 I ntegrated Brake Disc and Wheel Hub Fragmented
  • Figure-3 I ntegrated Brake Disc and Wheel Hub Detailed View
  • Figure-4 Convective Heat Transfer Coefficient Chart
  • Figure-5 Temperature Chart Figure-6: View of The State of The Art Figure-7: View of The State of The Art Figure-8: View of The State of The Art Figure-9: View of The State of The Art Reference Numbers:
  • connection Bolt The present invention is the wheel hub ( 1 ) and integrated brake disc (2) , and
  • Figure-1 shows interconnected state.
  • the wheel hub (1 ) comprise of the integrated brake disc (2) and connection bolts (3).
  • the wheel hub (1 ) developed by the invention and the integrated brake disc (2) are easily mounted via connection bolts (3).
  • the connection bosses (1.3) on the wheel hub (1 ) are circular form in diameter in which the inner part of the connection bolt (3) will be mounted.
  • Each number-changing connection bosses (1.3) rises above the wheel hub (1 ) like a tower and surrounds it without contacting the disc mounting diameter (1.1 ).
  • connection bosses (1.3) are also designed in the form of boss to reduce the conduction of heat generated during braking to the wheel hub (1 ). Although the total contact surface area effective in thermal conduction between this integrated brake disc (2) and wheel hub (1 ) is reduced, the cost of machining process has been reduced due to the amount of machining allowance to be removed from this area.
  • hub mounting support (2.1 ) For concentricity of the integrated brake disc (2) connected to the wheel hub (1 ), there is machined hub mounting support (2.1 ) on the said integrated brake disc (2).
  • the surface of said wheel hub mounting support (2.1 ) is curved and this mentioned curve is in angular form that will hold and/or wrap disc mounting diameter (1.1 ).
  • the wheel hub mounting support (2.1 ) on the disc is designed to contact the wheel hub from three separate points as shown in example Figure-2 in order to reduce the thermal conduction in the radial direction.
  • Behind the hub mounting support (2.1 ) is a numerically variable disc connection hole (2.5) arranged.
  • Disc connection holes (2.5) were also formed as bosses for the purpose of reducing thermal conduction and part weight.
  • connection bolt (3) through each disc connection hole (2.5) is connected to the connection bosses (1.3).
  • hub mounting surface (2.2) is placed on the disc mounting surface (1.2) of each connection boss (1.3) on the said wheel hub (1 ) and connection occurs by passing through the connection bolt (3) disc connection hole (2.5).
  • Each cylindrical duct (2.3) in the inner diameter of the integrated brake disc (2) is directed to the disc ventilation vanes (2.4) opening to the rim side of the air on the suspension side of the vehicle.
  • the air contact of the ventilation vanes (2.4) was increased, and a significant increase was achieved in the convective heat transfer and the average convective heat transfer coefficient of the integrated brake disc (2).
  • Each cylindrical channel (2.3) is designed in such a way that no additional core is required to the casting model of the integrated brake disc (2) and does not require any machining operation. In other words, since cylindrical channels (2.3) are formed during casting, no additional machining is required, thus, the machining cost is eliminated. In addition, the said cylindrical channels (2.3) reduce the mechanical stresses caused by thermal expansion of the disc around the disc connection holes (2.5) which the bolts (3) pass through.
  • the ventilation vanes (2.4) are connected to the inboard friction disc (2.7) so that the disc connection flange (2.6) is opened to the rim direction, and the anti-coning brake disc (2) has been designed. In this way, an anti coning integrated brake disc (2) has been obtained under thermomechanical loading conditions.
  • the wear limit line (2.9) formed by machining on both inboard friction (2.7) and outboard friction (2.8) rings seen in Figure-3 has been formed to inform the user.
  • the bell section of the brake disc was transported to the connection bosses (1 .3) on the wheel hub (1 ) with the invention and the torque carrying task was transferred as spherical graphite cast iron, which is a wheel hub (1 ) material with high mechanical strength.
  • the thermal conductivity coefficient of the wheel hub (1 ) material is lower than the lamellar graphite cast iron which is material of the integrated brake disc (2), the thermal load conducted to the bearings has also been reduced.
  • the connection boss profile (1.7) on the wheel hub (1 ) reduces stresses under thermal and mechanical braking loading conditions. With the ventilation duct (1.4) in the wheel hub (1 ), the passage of air on the suspension and rim side of the vehicle to the disc ventilation vane (2.4) is facilitated. With the increase in the average convective heat transfer coefficient, the cooling period of the integrated brake disc (2) decreases significantly.
  • the disc ventilation vanes (2.4) of the state of the art with the application no. 2019/22505 have been adapted to the brake disc of the invention and computational fluid dynamics analyses with the same ventilation vane (2.4) profile have been performed in comparison with the state of the art shown in Figure-6.
  • the average convective heat transfer coefficient of the integrated brake disc (2) is increased by 113% compared to the state of the art in Figure-6, as can be seen in Figure-4, while 80% improvement has been achieved in the total heat dissipation rate with the integrated brake disc (2).
  • the total weight of the invention is 10 kg (which corresponds to 15%) less than the state of the art in Figure-6, 5.5 kg (which corresponds to 9%) less than the state of the art in Figure-7, and 4.9 kg (which corresponds to 8%) less than the state of the art in reference application 2018/20819.

Landscapes

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

Abstract

La présente invention concerne un ensemble disque de frein et moyeu de roue (1). L'invention permet d'obtenir un avantage de poids et de coût par rapport à l'état de la technique, et un disque de frein (2) et un moyeu de roue (1) intégrés, dotés de caractéristiques de longue durée et de ventilation, et étant plus résistants aux charges structurales et thermiques, sont obtenus.
PCT/TR2021/050374 2020-07-10 2021-04-22 Innovation de nouveau disque de frein et moyeu de roue pour véhicules utilitaires lourds WO2022010435A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2020/11005 2020-07-10
TR2020/11005A TR202011005A1 (tr) 2020-07-10 2020-07-10 Ağir hi̇zmet araçlarinin fren di̇skleri̇ ve poyralarinda yeni̇li̇k

Publications (1)

Publication Number Publication Date
WO2022010435A1 true WO2022010435A1 (fr) 2022-01-13

Family

ID=79553555

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2021/050374 WO2022010435A1 (fr) 2020-07-10 2021-04-22 Innovation de nouveau disque de frein et moyeu de roue pour véhicules utilitaires lourds

Country Status (2)

Country Link
TR (1) TR202011005A1 (fr)
WO (1) WO2022010435A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114810873A (zh) * 2022-05-18 2022-07-29 田世良 一种一体式铸态盘毂及其加工方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4002695A1 (de) * 1990-01-27 1991-08-01 Porsche Ag Bremsscheibe
US6308803B1 (en) * 1998-09-11 2001-10-30 Brembo S.P.A. Brake-disk with visual wear control means
DE10133985A1 (de) * 2001-04-30 2002-10-31 Knorr Bremse Systeme Radnabe
WO2006022521A1 (fr) * 2004-08-26 2006-03-02 Sun Nam Cho Indicateur du moment de remplacement d'une garniture de frein de vehicule
DE102007019728A1 (de) * 2007-04-26 2008-11-13 Zf Friedrichshafen Ag Bremsscheibenanbindung
US20090260933A1 (en) * 2006-04-13 2009-10-22 Knorr-Bremse Systeme Fuer Nutzfahrzeunge Gmbh Brake disc
WO2020003112A1 (fr) * 2018-06-26 2020-01-02 Duemiladieci S.R.L.S. Unipersonale Frein de véhicule
US20200191214A1 (en) * 2018-12-12 2020-06-18 Hyundai Motor Company Brake disc
TR201820819A2 (tr) * 2018-12-28 2020-07-21 Ege Fren Sanayi Ve Ticaret Anonim Sirketi Ağir ti̇cari̇ araçlarin fren di̇skleri̇ ve poyralarinda yeni̇li̇k

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4002695A1 (de) * 1990-01-27 1991-08-01 Porsche Ag Bremsscheibe
US6308803B1 (en) * 1998-09-11 2001-10-30 Brembo S.P.A. Brake-disk with visual wear control means
DE10133985A1 (de) * 2001-04-30 2002-10-31 Knorr Bremse Systeme Radnabe
WO2006022521A1 (fr) * 2004-08-26 2006-03-02 Sun Nam Cho Indicateur du moment de remplacement d'une garniture de frein de vehicule
US20090260933A1 (en) * 2006-04-13 2009-10-22 Knorr-Bremse Systeme Fuer Nutzfahrzeunge Gmbh Brake disc
DE102007019728A1 (de) * 2007-04-26 2008-11-13 Zf Friedrichshafen Ag Bremsscheibenanbindung
WO2020003112A1 (fr) * 2018-06-26 2020-01-02 Duemiladieci S.R.L.S. Unipersonale Frein de véhicule
US20200191214A1 (en) * 2018-12-12 2020-06-18 Hyundai Motor Company Brake disc
TR201820819A2 (tr) * 2018-12-28 2020-07-21 Ege Fren Sanayi Ve Ticaret Anonim Sirketi Ağir ti̇cari̇ araçlarin fren di̇skleri̇ ve poyralarinda yeni̇li̇k

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114810873A (zh) * 2022-05-18 2022-07-29 田世良 一种一体式铸态盘毂及其加工方法

Also Published As

Publication number Publication date
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