GB2136070A - Disc brakes - Google Patents
Disc brakes Download PDFInfo
- Publication number
- GB2136070A GB2136070A GB08408430A GB8408430A GB2136070A GB 2136070 A GB2136070 A GB 2136070A GB 08408430 A GB08408430 A GB 08408430A GB 8408430 A GB8408430 A GB 8408430A GB 2136070 A GB2136070 A GB 2136070A
- Authority
- GB
- United Kingdom
- Prior art keywords
- disc
- components
- abutments
- bolt
- hub
- 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
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
- F16D65/02—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
- F16D2065/1312—Structure circumferentially 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
- F16D2065/1392—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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
A disc (1) for a vehicle disc brake comprises two arcuate components (5, 6) which are coupled together at adjacent ends by fasteners passed through superimposed openings in overlapping step-like abutments (18, 19). Each fastener comprises a tubular device (21), suitably a dowel or roll pin, which fits tightly in a radial bore (20) defined by the openings, in combination with a bolt (28) for clamping the abutments (18, 19) into mating engagement. <IMAGE>
Description
SPECIFICATION
Disc brakes
This invention relates to discs for vehicle disc brakes, particularly but by no means exclusively, of the kind for use with railway vehicles.
According to our invention in a disc for a vehicle disc brake comprising at least two components of arcuate outline, portions at adjacent ends of adjacent components are staggered to form overlapping abutments, and fastening means are inserted through superimposed openings in complementary pairs of abutments to couple the components together.
Constructing the disc from more than one component facilitates manufacture and the mounting of the disc on an associated wheel hub, axle and the like, and the arrangement of the abutments and of the fastening means provide joints which couple the components together rigidly to act as a single unit in use.
The fastening means preferably comprises a bolt or similar tensile fastener inserted into a radial bore defined by the openings and which contains a tightly fitting tubular device passing through the joint region. The tubular device may be a dowel pin or a spring roll pin.
Two embodiments of our invention will now be described by way of example with reference to the accompanying drawings, in which:
Figure 1 is a plan of the part of a disc for a disc brake of a rail vehicle;
Figure 2 is a section on line 2-2 of Figure 1; and
Figure 3 is a similar view of Figure 2 but showing a modification.
The disc 1 illustrated in Figures 1 and 2 of thè drawings is of annular outline having a central opening 2 to receive a hub (not shown) and has a pair of opposed external braking faces 3, 4 with which friction brake pads (also not shown) are engageable when the disc is incorporated in a disc brake for a rail vehicle.
The disc comprises two arcuate components 5, 6, each conveniently in the form of one-piece casting and each comprising a pair of plates 7, 8; 9, 10 held in a spaced relationship by radial cooling fins 11, 12 with the other faces, constituting the braking faces 3, 4, lying in spaced parallel planes.
The inner peripheral edge of the disc is provided with angularly spaced inwardly extending radial projections 1 3 having part-cylindrical axial recesses 14 at their inner ends. When the disc is mounted on a hub these recesses register with corresponding recesses of the hub to receive spring roll-pins under compression, a clearance being present between the projections 13 and the hub. The roll-pins serve to centre the disc on the hub and provide a compliant mounting which is able to accommodate thermal changes in the dimensions of the disc brake.
The plates 7, 8; 9, 10 of each disc component 5, 6 are bridged at their ends by substantial integral bodies 1 5, 1 6 of metal, and the joint or
split-line 1 7 between mating portions at adjacent
ends is staggered in a step-like manner to form
two overlapping abutments 1 8, 19.
A radial bore 20 defined by superimposed
openings in the bodies 1 5, 1 6 passes through
both abutments and receives a tightly fitting
tubular dowel pin 21. The dowel pin 21 is divided
transversely near its radially innermost end to
form two slightly spaced dowel pieces 22, 23, and
each piece has an enlarged head 24, 25 seated in
respective counterbored recesses 26, 27 in the
abutments 1 5 and 16. The two dowel pin pieces
22 and 23 are clamped tcgether by a bolt 28. The two disc components 5 and 6 are thus rigidly
coupled together. The stepped form of the abutments 1 8, 1 9, together with the tight fit of the
dowel pin 21, provides positive location of the disc
components relative to each other.
Although only one joint is shown in the drawings the other joint for the opposite end of the components 5, 6 is identical so.that both components of the disc brake are of identical form.
The two components can easily be uncoupled for replacement etc. by removing the bolt 28 and dowel pin 21, and drawing the components apart in opposite radial directions.
In Figure 3 the dowel pin 21 is replaced by a spring roll pin 30, driven into the bore 20, and clamp washers 31, 32 having spigots 33, 34 inserted into the ends of the roll pin 30.
The construction of Figure 3 is otherwise the same as that of Figures 1 and 2 and corresponding reference numerals have been applied to corresponding parts.
1. A disc for a vehicle disc brake comprising at
least two components of arcuate outline, in which portions at adjacent ends of adjacent components are staggered to form overlapping abutments, and fastening means are inserted through superimposed openings in complementary pairs of abutments to couple the components together, and in which a radial bore defined by the openings receives the fastening means, and the fastening means comprises a tightly fitting tubular device which is received in the bore, in combination with a bolt for clamping the abutment faces of each pair into mating engagement.
2. A disc as claimed in claim 1, in which the tubular device comprises a two-piece dowel of which the pieces are inserted into opposite ends of the bore, and each piece has an enlarged head which is clamped, by the bolt, against seatings in counterbored recesses in the two abutments.
3. A disc as claimed in claim .1, in which the tubular device comprises a roll pin, and the bolt acts on the components through a pair of clamp washers which are clamped against seatings iri counterbored recesses in the two abutments and include spigots which are received in opposite ends of the roll pin.
4. A disc as claimed in any preceding claim, in which the abutments are of complementary stepped outline.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (6)
1. A disc for a vehicle disc brake comprising at
least two components of arcuate outline, in which portions at adjacent ends of adjacent components are staggered to form overlapping abutments, and fastening means are inserted through superimposed openings in complementary pairs of abutments to couple the components together, and in which a radial bore defined by the openings receives the fastening means, and the fastening means comprises a tightly fitting tubular device which is received in the bore, in combination with a bolt for clamping the abutment faces of each pair into mating engagement.
2. A disc as claimed in claim 1, in which the tubular device comprises a two-piece dowel of which the pieces are inserted into opposite ends of the bore, and each piece has an enlarged head which is clamped, by the bolt, against seatings in counterbored recesses in the two abutments.
3. A disc as claimed in claim .1, in which the tubular device comprises a roll pin, and the bolt acts on the components through a pair of clamp washers which are clamped against seatings iri counterbored recesses in the two abutments and include spigots which are received in opposite ends of the roll pin.
4. A disc as claimed in any preceding claim, in which the abutments are of complementary stepped outline.
5. A disc for a vehicle disc brake as claimed in
Claim 1 and substantially as described herein with reference to and as illustrated in Figures 1 and 2 of the accompanying drawings.
6. A disc for a vehicle disc brake as claimed in
Claim 1 and substantially as described herein with reference to and as illustrated in Figure 3 of the accompanying drawings.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08408430A GB2136070B (en) | 1982-04-27 | 1984-04-02 | Disc brakes |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8212133 | 1982-04-27 | ||
GB08408430A GB2136070B (en) | 1982-04-27 | 1984-04-02 | Disc brakes |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8408430D0 GB8408430D0 (en) | 1984-05-10 |
GB2136070A true GB2136070A (en) | 1984-09-12 |
GB2136070B GB2136070B (en) | 1986-03-19 |
Family
ID=26282655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08408430A Expired GB2136070B (en) | 1982-04-27 | 1984-04-02 | Disc brakes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2136070B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2609765A1 (en) * | 1987-01-15 | 1988-07-22 | Bergische Stahlindustrie | AXIALLY DIVIDED BRAKE DISC, ESPECIALLY FOR RAIL VEHICLES |
WO1989005925A1 (en) * | 1987-12-18 | 1989-06-29 | Urban Transportation Development Corporation Ltd. | Split disc for disc brake rotor |
GB2231376A (en) * | 1989-05-11 | 1990-11-14 | Dana Corp | Two piece brake disc |
US6557672B1 (en) * | 1999-11-12 | 2003-05-06 | Knorr-Bremse Systeme Fur Schienenfahrzeuge Gmbh | Friction ring for a brake disc |
CN108368887A (en) * | 2015-12-04 | 2018-08-03 | 舍弗勒技术股份两合公司 | Steel disc for multiplate clutch |
-
1984
- 1984-04-02 GB GB08408430A patent/GB2136070B/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2609765A1 (en) * | 1987-01-15 | 1988-07-22 | Bergische Stahlindustrie | AXIALLY DIVIDED BRAKE DISC, ESPECIALLY FOR RAIL VEHICLES |
WO1989005925A1 (en) * | 1987-12-18 | 1989-06-29 | Urban Transportation Development Corporation Ltd. | Split disc for disc brake rotor |
GB2231376A (en) * | 1989-05-11 | 1990-11-14 | Dana Corp | Two piece brake disc |
US5031739A (en) * | 1989-05-11 | 1991-07-16 | Dana Corporation | Two piece clutch brake |
GB2231376B (en) * | 1989-05-11 | 1993-05-26 | Dana Corp | Clutch brake disc |
US6557672B1 (en) * | 1999-11-12 | 2003-05-06 | Knorr-Bremse Systeme Fur Schienenfahrzeuge Gmbh | Friction ring for a brake disc |
CN108368887A (en) * | 2015-12-04 | 2018-08-03 | 舍弗勒技术股份两合公司 | Steel disc for multiplate clutch |
Also Published As
Publication number | Publication date |
---|---|
GB2136070B (en) | 1986-03-19 |
GB8408430D0 (en) | 1984-05-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |