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
  • 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
  • F16D2065/1328—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

Definitions

• the invention relates to a brake disc for disc brakes of vehicles, in particular for pneumatically actuated disc brakes of commercial vehicles, which has two friction rings connected to one another via webs, between which an air channel is formed, supporting elements being formed on the inner circumferential region of the brake disc, which are used for engagement are designed in cams of a hub on an axle of the commercial vehicle.
• the invention further relates to an axle hub according to the preamble of claim 7.
• a brake disc with the features mentioned above ie a brake disc in a "two-part" design, is known from the German patent DE 195 44 559 C1.
• intermediate elements for torque and power transmission from the cams of the hub to the support elements of the disc are provided on this brake disc, which e.g. can be fastened by bolts to the cams of the hub.
• the cams of the hub engage in the intermediate elements and, on the other hand, the intermediate elements in the support elements, so that reliable torque transmission from the brake disc to the hub is ensured in both directions of rotation.
• the brake disc of DE 195 44 559 C1 has proven itself per se, but it is desirable to further minimize the temperature sensitivity of the brake disc under high loads. In particular, the tendency of the brake disc to crack formation should be reduced.
• the invention aims to alleviate this problem. If necessary, the corresponding design of the axle hub for fitting the brake disc should also be optimized.
• the invention achieves this goal by the subject matter of claims 1, 2 and 7, the subject matter of which, viewed individually, significantly increase the resilience of the brake disc and which, in their combination, complement one another to form a particularly advantageous and highly resilient brake disc (and axle hub).
• the subject matter of claim 1 is characterized in that the support elements on the inner circumference of the brake disc bridge the air duct in a web-like manner and preferably project axially into the area of the friction rings in such a way that the outer surfaces of the friction rings - in particular also in their maximum permissible state of wear - are axially spaced from the outer surfaces of the support elements
• the embodiment of claim 2 is further characterized in that the support elements are provided with supply lines for cooling air in the air duct.
• This embodiment also ensures a significantly improved thermal behavior.
• th of the radially toothed brake discs The brake disc is provided with an air channel formed from ribs or knobs between the two friction rings, which is known per se from the prior art mentioned above.
• This variant of the invention allows additional cooling air to flow through the support elements and thus the Significantly increase the cooling effect of the cooling air duct. This measure also ensures an improved thermal behavior of the brake disc compared to the prior art.
• the feed lines are expediently designed as bores running essentially radially to the brake disc
• the brake disk is preferably supplemented by an axle hub for fitting a brake disk according to one of the preceding claims, which is characterized in that the axle hub and / or an adapter which can be introduced between the axle hub and the brake disk with hub bores which are open radially inward or laterally axially outward or -Openings for supplying cooling air into the bores of the support elements and / or directly into the air duct formed between the friction rings is thus further increased in a structurally simple manner
• FIG. 1 is a side view of a first exemplary embodiment of the invention
• FIG. 2 shows a sectional view A-A from FIG. 1,
• FIG. 3 shows a sectional view B-B from FIG. 2,
• FIG. 3 5 shows an enlarged detail from FIG. 2
• FIG. 6 shows a side view of a brake disk of a further exemplary embodiment of the invention placed on an axle hub
• FIG. 7 shows a sectional view A-A from FIG. 8,
• FIG. 8 shows a side view of a brake disk of a third exemplary embodiment of the invention placed on an axle hub
• FIG. 9 shows a sectional view A-A from FIG. 8,
• FIG. 10 is a perspective view of a fourth exemplary embodiment of the
• FIG. 1 1 shows a further perspective view of the exemplary embodiment from FIG.
• FIG. 12 shows a side view of the exemplary embodiment from FIG. 10,
• FIG. 13 is a sectional view A-A of FIG. 12,
• FIGS. 10 to 12 shows a rear view of the exemplary embodiment from FIGS. 10 to 12
• FIGS. 6 and 7 show a plan view of a brake disc 1 for disc brakes of commercial vehicles.
• the brake disc 1 has two friction rings 3, 4 connected to one another via webs 2, which are arranged in several concentric rings, so that between the friction rings 3, 4 A ventilation duct (air duct) 5 is formed on the inner circumferential area of the brake disc 1, support elements 6 are formed which (see FIGS. 6 and 7) are designed for tooth-like engagement in cams 7 of an axle hub 8, clamp-like, U-shaped and axially attachable intermediate elements 9 , which are fastened by means of bolts 10, ensure a secure axial (and radial) seat of the brake disc 1 on the hub 7 As can be seen particularly well in FIGS.
• the support elements 6 on the inner circumference of the brake disc 1 bridge the air duct 5 in a web-like manner and thereby project axially into the area of the friction rings 3, 4 or are integrally formed on them such that the outer surfaces 3a, 4a of the friction rings 3, 4 (broken line Smax) remain axially spaced from the outer surfaces 6a of the support elements even in their maximum permissible wear condition, so that even in the maximum wear condition there is still a certain separation between the location of maximum thermal and the location of maximum mechanical The load remains (which is also shown by the central section through the brake disc 1 according to FIG. 2).
• the support elements 6 are provided with advantageous feed lines 11 for cooling air (flow L) into the air duct 5.
• the support elements 6 (see also FIG. 4) essentially consist of two L-shaped sections 12 , 13, which together also form a type of T-shape, the web of the T or the base sides 12a, 13a of the two L-shaped sections 12 13 projecting radially into the air duct 5 and the longitudinal legs M2b, 13b of the L-shaped sections 12, 13 each project radially inward beyond the inner circumference of the friction rings 3, 4.
• the two L-shaped sections 12, 13 are each oriented away from one another and ensure that force is introduced over a large area into the friction rings 3, 4
• axle hub 8 So that the ventilation is not covered by the axle hub 8 even when the brake disc 1 is mounted on the pot-like axle hub 8 or the hub section, the axle hub or an optional adapter (not shown) with essentially radially running hub bores 14 (see FIGS. 6 and 7) or provided with lateral or axial hub openings 15 (see FIGS.

Landscapes

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

Priority Applications (6)

Applications Claiming Priority (2)

Publications (1)

Family

ID=7879455

Family Applications (1)

Country Status (8)

Cited By (3)

Families Citing this family (39)

Citations (8)

Family Cites Families (6)

• 1998
  • 1998-09-02 DE DE19839844A patent/DE19839844A1/de not_active Withdrawn
• 1999
  • 1999-08-19 DE DE59906200T patent/DE59906200D1/de not_active Expired - Lifetime
  • 1999-08-19 BR BR9913384-9A patent/BR9913384A/pt not_active IP Right Cessation
  • 1999-08-19 WO PCT/EP1999/006069 patent/WO2000014423A1/de not_active Ceased
  • 1999-08-19 JP JP2000569138A patent/JP2002524700A/ja active Pending
  • 1999-08-19 TR TR2001/00696T patent/TR200100696T2/xx unknown
  • 1999-08-19 US US09/786,269 patent/US6626273B1/en not_active Expired - Lifetime
  • 1999-08-19 EP EP99945996A patent/EP1108155B1/de not_active Expired - Lifetime
  • 1999-08-19 AU AU58535/99A patent/AU5853599A/en not_active Abandoned

Patent Citations (8)

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