GB2283288A - Internally ventilated composite disc brake - Google Patents

Internally ventilated composite disc brake Download PDF

Info

Publication number
GB2283288A
GB2283288A GB9421477A GB9421477A GB2283288A GB 2283288 A GB2283288 A GB 2283288A GB 9421477 A GB9421477 A GB 9421477A GB 9421477 A GB9421477 A GB 9421477A GB 2283288 A GB2283288 A GB 2283288A
Authority
GB
United Kingdom
Prior art keywords
brake
disc
composite
cup
rings
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.)
Granted
Application number
GB9421477A
Other versions
GB2283288B (en
GB9421477D0 (en
Inventor
Martin Luger
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.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
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 Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of GB9421477D0 publication Critical patent/GB9421477D0/en
Publication of GB2283288A publication Critical patent/GB2283288A/en
Application granted granted Critical
Publication of GB2283288B publication Critical patent/GB2283288B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F16D65/00—Parts or details
    • F16D65/78—Features relating to cooling
    • F16D65/84—Features relating to cooling for disc brakes
    • F16D65/847—Features relating to cooling for disc brakes with open cooling system, e.g. cooled by air
    • 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
    • F16D65/12—Discs; Drums for disc brakes
    • F16D65/128—Discs; Drums for disc brakes characterised by means for cooling
    • 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
    • F16D2065/1316—Structure radially segmented
    • 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
    • F16D2065/132—Structure layered
    • 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
    • F16D2065/1356—Connection interlocking
    • F16D2065/136—Connection interlocking with relative movement radially
    • 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
    • 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
    • F16D2069/002—Combination of different friction materials
    • 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
    • F16D2200/0004—Materials; Production methods therefor metallic
    • F16D2200/0008—Ferro
    • F16D2200/0013—Cast iron
    • 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
    • F16D2200/0004—Materials; Production methods therefor metallic
    • F16D2200/0026—Non-ferro
    • F16D2200/003—Light metals, e.g. aluminium
    • 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
    • F16D2200/0052—Carbon

Landscapes

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

Description

1 2283288 Internally ventilated composite brake disc The present invention
relates to an internally ventilated composite brake disc for a disc brake with brake-disc rings forming air channels therebetween subdivided by transverse ribs.
A brake disc for a disc brake unit in two parts with radial air channels is known from DE-AS 11 64 761. This brake disc is subdivided into two half segments of a circle, which are connected to each other by means of bolts. The half segments are connected to the brake cup by means of further fastening means.
An object of the invention is to provide a multiple-part brake disc which is simple to produce and which ensures efficient operation while using different materials for the two brake-disc rings.
The invention provides a brake disc as claimed in Claim 1.
The advantages mainly achieved by the invention are that the two brakedisc rings may be produced from different materials in order to achieve an optimum braking effect.
2 To this end the brake-disc rings may consist of the material combination of cast iron and carbon, which are connected to a brake cup of aluminium. Either the outer brake-disc ring may consist of cast iron and the inner brake-disc ring of carbon or vice versa,.
The two brake-disc rings and the brake cup are connected together by fastening means, which comprise pins in one brake-disc ring connected to the other brake-disc ring by means of at least one bolt.
The pins are arranged in radial grooves in receiving means in one brakedisc ring and project with the free ends thereof so far inwards that they project into bores in the brake cup and secure the said brake cup accordingly. At the same time the receiving means form transverse ribs for air channels.
The manner of connecting the brake-disc rings to each other and to the brake cup reduces the stresses which arise when parts expand by differing amounts as a result of heat, so that for example the brake-disc ring of cast iron may expand radially relative to the non-expanding brake-disc ring of carbon, and so thermal-expansion cracks are prevented.
Embodiments of the invention will now be described i 3 with reference to the accompanying drawings, wherein:
Fig. 1 is an exploded perspective view of a brake disc, comprising the two brake-disc rings and a brake cup with a connecting bolt and angular air channels, Fig. 2 is an exploded perspective view of a further embodiment of a brake disc, comprising the two brake-disc rings and a brake cup with two connecting bolts and semi-circular air channels, Fig. 3 is a section through a connexion between the two brake-disc rings of Fig. 1 with a groove block, and Fig. 4 is a section through a connexion between the two brake-disc rings of Fig. 1 without a groove block.
In the drawings, a disc brake comprises a brake disc 1, formed by an inner brake-disc ring 2 and an outer brake-disc ring 3, and a brake cup 4.
The brake-disc rings 2 and 3 as well as the brake cup 4 are connected together by fastening means 5. The fastening means 5 comprises a pin 6, where appropriate a 4 slide block 7 and at least one fastening bolt 8.
The pin 6 is constructed in the form of an alignment pin and is held inserted in a radial groove of an integrally formed receiving means 10 of the brake-disc ring 2 or 3. The receiving means 10 extend uniformly over the entire annular area of the brake-disc rings 2 and 3, and at the same time form transverse ribs for air channels 11.
A connexion between the two brake-disc rings 2 and 3 is by means of the fastening bolt 8, which is held in bores 12 or 12, 13 in one brake-disc ring 3 and screwed into the pins 6 either directly or through the intermediary of the groove blocks 7. The pin-6 is then positioned in a longitudinal groove 14.
The brake cup 4 is secured by way of the inwardly projecting free ends 15 of the pins 6, which project into bores 20, and is connected to the two brake-disc rings 2 and 3.
As shown in greater detail in Fig. 1, the air channels 11 are angular in cross-section, while the air channels 11 in the embodiment according to Fig. 2 are semi-circular in cross-section.
Y The receiving means 10 may have either a conically converging shape as shown in Fig. 2 or the square shape as shown in Fig. 1.
The brake-disc rings 2 and 3 may be connected by means of one or more bolts 8, as shown in greater detail in Fig. 2.
The choice of material of the two brake-disc rings may be freely selected in accordance with requirements, since the possibility of connexion by way of the fastening means 5 leaves this open. The inner brake-disc ring 2 may either consist of cast iron or carbon steel. The outer brake-disc ring 3 may consists accordingly of carbon steel or cast iron. The brake cup 4 may consist of aluminium.
The embodiments shown in Figs. 1 and 2 with one or two fastening bores 12 as well as the arrangement of the air channels 11 may be changed depending upon requirements. In this way, the inner brake-disc ring 2 may be constructed merely as a disc, while the outer brake-disc ring 3 is then constructed with receiving means 10 for the fastening means 5 and air channels 11.
6

Claims (5)

Claims:
1. An internally ventilated composite brake disc for a disc brake with brake-disc rings forming air channels therebetween subdivided by transverse ribs, comprising brake-disc rings connectable by fastening means and a brake cup.
2. A composite brake disc according to Claim 1, wherein the air channels are provided in receiving means in the brake-disc ring and at the same time form transverse ribs for the air channels.
3. A composite brake disc according to Claim 1 or 2, wherein the fastening means comprise pins insertable into radial grooves in one brake- disc ring and to which the other brake-disc ring may be secured by means of at least one bolt.
A composite brake disc according to Claim 3, wherein the pin is constructed as an alignment pin and receives in a longitudinal groove a groove block having a threaded hole for a fastening bolt for securing one of the brake-disc rings.
5. A composite brake disc substantially as herein described with reference to any one of the embodiments shown in the accompanying drawings.
5. A composite brake disc according to Claim 3 or 4, wherein inwardly projecting free ends of the pins 7 are insertable into bores in the brake cup and connect the brake cup rigidly to the brake-disc rings to form a unit.
6. A composite brake disc according to any one of the preceding Claims, wherein the brake-disc cup consists of aluminium and one brake-disc ring consists of cast iron and the other brake-disc ring consists of carbon steel.
7.
A composite brake disc substantially as herein described with reference to any one of the embodiments shown in the accompanying drawings.
a & a 4h 1 9 Amendments to the claims have been filed as follows 1. An internally ventilated composite brake disc for a disc brake comprising brake-disc rings with air channels therebetween subdivided by ribs, the brake-disc rings being connected by fastening means and a brake cup, wherein the fastening means comprise pins insertable into radial grooves of receiving means in one brake-disc ring and to which the other brake-disc ring may be secured by means of at least one respective bolt, the receiving means with the grooves also forming the ribs for the air channels.
A composite brake disc according to Claim 1, wherein the pin is constructed as an alignment pin and receives in a longitudinal groove a groove block having a threaded hole for a fastening bolt for securing one of the brake-disc rings.
3. A composite brake disc according to Claim 1 or 2, wherein inwardly projecting free ends of the pins are insertable into bores in the brake cup and connect the brake cup rigidly to the brake-disc rings to form a unit.
4. A composite brake disc according to any one of the 9 preceding Claims, wherein the brake-disc cup consists of aluminium and one brake-disc ring consists of cast iron and the other brake-disc ring consists of carbon steel.
GB9421477A 1993-10-27 1994-10-25 Internally ventilated composite brake disc assembly Expired - Fee Related GB2283288B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4336617A DE4336617C1 (en) 1993-10-27 1993-10-27 Ventilated brake disc

Publications (3)

Publication Number Publication Date
GB9421477D0 GB9421477D0 (en) 1994-12-07
GB2283288A true GB2283288A (en) 1995-05-03
GB2283288B GB2283288B (en) 1997-07-09

Family

ID=6501114

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9421477A Expired - Fee Related GB2283288B (en) 1993-10-27 1994-10-25 Internally ventilated composite brake disc assembly

Country Status (4)

Country Link
DE (1) DE4336617C1 (en)
FR (1) FR2711753B1 (en)
GB (1) GB2283288B (en)
IT (1) IT1271027B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102374245A (en) * 2010-08-19 2012-03-14 昆山富康汽车配件有限公司 Automotive brake disc
CN105673738A (en) * 2016-01-28 2016-06-15 西安航空制动科技有限公司 Combined type carbon fiber composite brake disk
CN108368899A (en) * 2015-12-11 2018-08-03 株式会社Posco Potassium steel brake disc
CN111503186A (en) * 2020-07-01 2020-08-07 莱州伟辰汽车配件有限公司 Split type high-efficient heat dissipation type brake disc

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19528434B4 (en) * 1995-08-02 2004-04-15 Bayerische Motoren Werke Ag brake disc
DE19544559C1 (en) * 1995-11-30 1997-07-03 Knorr Bremse Systeme Two-piece brake disc, especially for commercial vehicle disc brakes
DE19649919C2 (en) 1996-12-02 1999-05-06 Actech Gmbh Adv Casting Tech Brake members made of composite casting, namely brake drum, brake disc or the like, and composite casting method for the production of brake members
DE19843399A1 (en) * 1998-09-22 2000-03-23 Volkswagen Ag Brake disc for disc brakes
DE102010024389A1 (en) * 2010-06-19 2011-12-22 Audi Ag Connecting device between friction ring and pot of a brake disc
DE102013002300B3 (en) * 2013-02-08 2014-07-17 Audi Ag Brake disc for a disc brake of a motor vehicle
JP6259912B2 (en) 2013-10-08 2018-01-10 ボルボ トラック コーポレイション Driven wheel assembly and motor vehicle comprising driven wheel assembly
KR20150061665A (en) * 2013-11-18 2015-06-05 현대자동차주식회사 Brake Disc Using Different Materials and Method for Manufacturing The Same
DE102018210374A1 (en) * 2018-06-26 2020-01-02 Audi Ag Internally ventilated brake disc for a disc brake of a motor vehicle

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1079081A (en) * 1963-03-05 1967-08-09 Girling Ltd Improvements in discs for disc brakes
US3892297A (en) * 1973-01-03 1975-07-01 Nelson R Brownyer Brake disc covering structure
GB2033509A (en) * 1978-09-29 1980-05-21 Ford Motor Co Brake disc rotor
GB1587825A (en) * 1976-12-11 1981-04-08 Girling Ltd Discs for disc brakes
GB2107012A (en) * 1981-10-01 1983-04-20 Automotive Products Plc Brake disc
US4448291A (en) * 1981-12-21 1984-05-15 The Bendix Corporation Rotor for a disc brake assembly

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US2765881A (en) * 1949-12-09 1956-10-09 Raymond C Pierce Brake rotor
US2728422A (en) * 1950-05-19 1955-12-27 Westinghouse Air Brake Co Disc brake rotor
DE1164761B (en) * 1961-07-03 1964-03-05 Bergische Stahlindustrie One or two-part, double-walled brake disc for disc brakes, especially for rail vehicles
DE1600149A1 (en) * 1966-12-23 1970-02-05 Teves Gmbh Alfred Brake disc for disc brakes
DE1940669A1 (en) * 1969-08-09 1971-02-18 Porsche Kg Two-part brake disc for disc brakes of vehicles
US3951240A (en) * 1971-10-07 1976-04-20 Dunlop Limited Frictional disc arrangement for a disc brake
DE2550893A1 (en) * 1975-11-13 1977-05-18 Bergische Stahlindustrie Rail vehicle disc brake - has annular disc secured to hub by bolts in radial slots of hub
DE3145563A1 (en) * 1981-11-17 1983-05-26 Bergische Stahl-Industrie, 5630 Remscheid ARRANGEMENT FOR SECURING A BRAKE RING
US4474268A (en) * 1982-04-16 1984-10-02 Horton Manufacturing Co., Inc. Torque and/or rotational control apparatus
DE3436729A1 (en) * 1984-10-06 1986-04-10 Fried. Krupp Gmbh, 4300 Essen Brake disc
EP0198217A1 (en) * 1985-04-18 1986-10-22 Allied Corporation Disc brake rotor
GB8722349D0 (en) * 1987-09-23 1987-10-28 Lucas Ind Plc Disc brakes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1079081A (en) * 1963-03-05 1967-08-09 Girling Ltd Improvements in discs for disc brakes
US3892297A (en) * 1973-01-03 1975-07-01 Nelson R Brownyer Brake disc covering structure
GB1587825A (en) * 1976-12-11 1981-04-08 Girling Ltd Discs for disc brakes
GB2033509A (en) * 1978-09-29 1980-05-21 Ford Motor Co Brake disc rotor
GB2107012A (en) * 1981-10-01 1983-04-20 Automotive Products Plc Brake disc
US4448291A (en) * 1981-12-21 1984-05-15 The Bendix Corporation Rotor for a disc brake assembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102374245A (en) * 2010-08-19 2012-03-14 昆山富康汽车配件有限公司 Automotive brake disc
CN108368899A (en) * 2015-12-11 2018-08-03 株式会社Posco Potassium steel brake disc
CN105673738A (en) * 2016-01-28 2016-06-15 西安航空制动科技有限公司 Combined type carbon fiber composite brake disk
CN111503186A (en) * 2020-07-01 2020-08-07 莱州伟辰汽车配件有限公司 Split type high-efficient heat dissipation type brake disc

Also Published As

Publication number Publication date
DE4336617C1 (en) 1995-03-09
FR2711753B1 (en) 1996-09-06
ITMI942158A1 (en) 1996-04-21
GB2283288B (en) 1997-07-09
ITMI942158A0 (en) 1994-10-21
IT1271027B (en) 1997-05-26
FR2711753A1 (en) 1995-05-05
GB9421477D0 (en) 1994-12-07

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PCNP Patent ceased through non-payment of renewal fee

Effective date: 20041025