FR2602018A1 - HUB AND DRUM BRAKE ASSEMBLY FOR VEHICLE - Google Patents
HUB AND DRUM BRAKE ASSEMBLY FOR VEHICLE Download PDFInfo
- Publication number
- FR2602018A1 FR2602018A1 FR8610678A FR8610678A FR2602018A1 FR 2602018 A1 FR2602018 A1 FR 2602018A1 FR 8610678 A FR8610678 A FR 8610678A FR 8610678 A FR8610678 A FR 8610678A FR 2602018 A1 FR2602018 A1 FR 2602018A1
- Authority
- FR
- France
- Prior art keywords
- hub
- drum
- brake assembly
- brake
- drum brake
- 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
- F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
- F16D51/16—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis
- F16D51/18—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes
- F16D51/20—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes extending in opposite directions from their pivots
- F16D51/22—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes extending in opposite directions from their pivots mechanically actuated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
- B60T1/067—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels employing drum
-
- 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
- F16D65/10—Drums for externally- or internally-engaging brakes
-
- 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
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
- F16D2125/22—Mechanical mechanisms converting rotation to linear movement or vice versa acting transversely to the axis of rotation
- F16D2125/28—Cams; Levers with cams
- F16D2125/30—Cams; Levers with cams acting on two or more cam followers, e.g. S-cams
-
- 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
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/44—Mechanical mechanisms transmitting rotation
- F16D2125/56—Shafts for transmitting torque directly
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Braking Arrangements (AREA)
Abstract
DANS CET ENSEMBLE LE FUT 21 DU MOYEU 20 PRESENTE UNE PARTIE INTERMEDIAIRE 25 DE DIAMETRE EXTERNE REDUIT SITUEE DANS UN PLAN RADIAL X-X MEDIAN DU TAMBOUR DE FREIN 27, ET LA CAME D'ACTIONNEMENT DES MACHOIRES 29 DU FREIN, QUI EST AXEE SUR LE PLAN MILIEU X-X DE LA SURFACE AXIALE DE FRICTION DU TAMBOUR 27, S'ETEND PARTIELLEMENT DANS LADITE PARTIE INTERMEDIAIRE 25 DU MOYEU.IN THIS ASSEMBLY, THE FUT 21 OF THE HUB 20 HAS AN INTERMEDIATE PART 25 OF REDUCED EXTERNAL DIAMETER LOCATED IN A RADIAL PLANE XX MEDIAN OF THE BRAKE DRUM 27, AND THE ACTUATION CAM OF THE BRAKE SHOES 29, WHICH IS CENTERED ON THE MIDDLE XX OF THE AXIAL FRICTION SURFACE OF THE DRUM 27, EXTENDS PARTLY IN THE SAID INTERMEDIATE PART 25 OF THE HUB.
Description
La présente invention est relative aux ensembles de montage des roues surThe present invention relates to wheel mounting assemblies on
les véhicules industriels et elle concerne plus particulièrement les freins à tambour utilisés sur ces véhicules et notamment sur les semiremorques. 5 Le système de montage utilisé jusqu'à présent comprend un moyeu comportant un disque sur lequel sont fixés d'une part le tambour de frein et d'autre part le voile de industrial vehicles and it relates more particularly to the drum brakes used on these vehicles and in particular on semi-trailers. 5 The mounting system used so far comprises a hub comprising a disc on which are fixed on the one hand the brake drum and on the other hand
la roue, au moyen de boulons.the wheel, by means of bolts.
Dans ce cas de roues à déport, soit en monte simple 10 des pneumatiques, soit en monte jumelée, le tambour de frein est complètement entouré par la jante et il entoure lui-même In this case of offset wheels, either in simple tire mounting, or in twin mounting, the brake drum is completely surrounded by the rim and it surrounds itself
complètement le moyeu.the hub completely.
Pour résister aux charges élevées le fût du moyeu présente un encombrement important ce qui limite l'espace 15 disponible pour loger le tambour de frein dont le diamètre doit permettre de recevoir la came d'actionnement des mâchoires. De ce fait, lebourrelet périphérique externe habituel de renforcement du tambour se trouve au voisinage immédiat 20 de la jante, et la chaleur engendrée au freinage et qui s'accumule dans ce bourrelet se transmet par convexion dans la jante et provoque ainsi une dégradation rapide du pneumatique. L'invention a pour but de remédier à ces inconvé-. 25 nients. Elle a pour objet à cet effet un ensemble de moyeu et de frein à tambour pour véhicule, dans lequel le moyeu est du type à disque déporté utilisé avec des roues à déport, caractérisé en ce que le fût du moyeu présente une To withstand the high loads, the barrel of the hub has a large size which limits the space available for housing the brake drum, the diameter of which must allow the actuating cam of the jaws to be received. As a result, the usual external peripheral bead for reinforcing the drum is located in the immediate vicinity of the rim, and the heat generated during braking and which accumulates in this bead is transmitted by convection in the rim and thus causes rapid degradation of the pneumatic. The object of the invention is to remedy these drawbacks. 25 customers. It has for this purpose a hub and drum brake assembly for a vehicle, in which the hub is of the offset disc type used with offset wheels, characterized in that the barrel of the hub has a
partie intermédiaire de diamètre externe réduit située dans 30 un plan radial médian du tambour de frein. intermediate part of reduced external diameter situated in a median radial plane of the brake drum.
Grâce à cette forme extérieure du fût du moyeu, la came d'actionnement des mâchoires du frein, qui est axée sur le plan milieu de la surface axiale de friction du tambour, s'étend partiellement dans ladite partie inter35 médiaire du moyeu, ce qui permet de la rapprocher de l'axe de l'essieu et de prévoir ainsi un tambour du plus petit Thanks to this external shape of the barrel of the hub, the actuation cam of the brake shoes, which is centered on the mid-plane of the axial friction surface of the drum, partially extends in said intermediate inter35 portion of the hub, which allows to bring it closer to the axis of the axle and thus to provide a drum of the smallest
diamètre possible pour le véhicule considéré. possible diameter for the vehicle in question.
La description qui va suivre, en regard des dessins The following description, next to the drawings
annexés à titre d'exemple non limitatif permettra de bien comprendre comment l'invention peut être mise en pratique. appended by way of nonlimiting example will make it possible to understand how the invention can be put into practice.
La figure 1 est une vue partielle en coupe d'un ensemble de frein monté avec un moyeu de la technique antérieure. La figure 2 est une vue en coupe à la même échelle Figure 1 is a partial sectional view of a brake assembly mounted with a hub of the prior art. Figure 2 is a sectional view on the same scale
_d'un ensemble de frein suivant l'invention. _a brake assembly according to the invention.
En se référant à la figure 1, un ensemble de frein de la technique antérieure comprend un moyeu 1 à disque Referring to Figure 1, a prior art brake assembly includes a disc hub 1
déporté 2 monté rotatif sur un essieu 3 au moyen de roulements 4 guidant la roue 5 en rotation et en translation. offset 2 rotatably mounted on an axle 3 by means of bearings 4 guiding the wheel 5 in rotation and in translation.
Au montage, le disque 2 du moyeu est introduit par l'intérieur dans le tambour 6 du frein et le voile 7 de la roue 5 à déport est fixé sur le tambour et sur le disque au moyen de boulons 8 dont une partie cannelée 9 adjacente During assembly, the disc 2 of the hub is inserted from the inside into the drum 6 of the brake and the web 7 of the offset wheel 5 is fixed to the drum and to the disc by means of bolts 8, one of which is fluted 9 adjacent
à la tête est enfoncée à force dans des trous du disque 2. the head is forced into holes in disc 2.
La jante 10 de la roue 5 entoure ainsi complètement The rim 10 of the wheel 5 thus completely surrounds
le tambour 6.the drum 6.
Le fût 11 du moyeu est à peu près cylindrique et 20 l'espace disponible pour loger le tambour est délimité The barrel 11 of the hub is roughly cylindrical and the space available for accommodating the drum is delimited
entre le fût 11 et la jante 10.between the barrel 11 and the rim 10.
Les roues ont-en général un diamètre standardisé, The wheels generally have a standardized diameter,
de sorte que cet espace disponible est strictement limité. so this available space is strictly limited.
Les tambours de freins comportent habituellement un 25 bourrelet radial externe 12 de renforcement autour de la périphérie de son ouverture, dans lequel s'accumule la Brake drums usually have an external radial bead 12 of reinforcement around the periphery of its opening, in which the
chaleur engendrée au freinage.heat generated during braking.
En raison de l'étroite proximité de la jante et de ce bourrelet, cette chaleur est transférée par convexion à la jante 10, ce qui provoque une détérioration rapide du pneumatique. En outre, la came 13 d'actionnement des machoires 14 doit être logée dans l'espace compris entre le moyeu 1 Due to the close proximity of the rim and this bead, this heat is transferred by convection to the rim 10, which causes rapid deterioration of the tire. In addition, the cam 13 for actuating the jaws 14 must be housed in the space between the hub 1
et la surface de friction du tambour 6. and the friction surface of the drum 6.
En se référant à la figure 2, le fût 21 du moyeu à disque déporté, monté sur l'essieu d'une façon identique à celle de l'exemple de la figure 1 au moyen de roulements 24, comporte une partie intermédiaire 25 de diamètre réduit par rapport à ses parties entourant les roulements 24, le disque déporté 22 étant relié au fût 21 Referring to Figure 2, the barrel 21 of the offset disc hub, mounted on the axle in a manner identical to that of the example of Figure 1 by means of bearings 24, has an intermediate portion 25 of diameter reduced relative to its parts surrounding the bearings 24, the offset disc 22 being connected to the barrel 21
par une partie tronconique 26 divergente vers l'extérieur. by a frustoconical part 26 diverging towards the outside.
La partie intermédiaire 25 de diamètre réduit est centrée sur le plan radial médian X-X de la surface de The intermediate portion 25 of reduced diameter is centered on the median radial plane X-X of the surface of
friction interne du tambour 27 et la came 28 d'actionnement des mâchoires 29 du frein, stuemendn e-mm- internal friction of the drum 27 and the cam 28 for actuating the brake shoes 29, stuemendn e-mm-
plan, s'étend partiellement dans la cavité délimitée par plane, partially extends into the cavity delimited by
ladite partie 25.said part 25.
Il est ainsi possible, avec une roue de même diamètre qu'à l'exemple de la figure 1, d'utiliser un tambour 27 ayant un diamètre plus petit, dont le bourrelet externe de renforcement se trouve ainsi plus éloigné de la It is thus possible, with a wheel of the same diameter as in the example of FIG. 1, to use a drum 27 having a smaller diameter, the external reinforcement bead of which is thus further from the
jante 31, réduisant ainsi considérablement le transfert de 15 chaleur à la jante par convexion. rim 31, thereby considerably reducing the transfer of heat to the rim by convection.
Ainsi conçu l'ensemble de frein permet de réaliser le disque 22 du moyeu avec le diamètre le plus petit possible voisin du cercle inscrivant l'extérieur des boulons Thus designed the brake assembly allows the disc 22 of the hub to be made with the smallest possible diameter close to the circle inscribing the outside of the bolts.
32 auquel on ajoute le minimum de matière pour éviter 20 l'éclatement à la mise en place à force de ces boulons. 32 to which a minimum of material is added to prevent bursting when these bolts are forced into place.
L'ensemble de frein suivant l'invention permet en outre de donner à la came le diamètre le plus grand et/ou de monter sur les mâchoires 29 des garnitures plus épaisses, The brake assembly according to the invention also makes it possible to give the cam the largest diameter and / or to mount thicker linings on the jaws 29,
c'est-à-dire d'augmenter leur durée d'utilisation. that is to say to increase their duration of use.
Claims (4)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8610678A FR2602018B1 (en) | 1986-07-23 | 1986-07-23 | HUB AND DRUM BRAKE ASSEMBLY FOR VEHICLE |
GB8715255A GB2192959B (en) | 1986-07-23 | 1987-06-29 | Wheel hub and drum brake assembly for vehicles |
DE19873722611 DE3722611A1 (en) | 1986-07-23 | 1987-07-09 | VEHICLE WHEEL HUB WITH DRUM BRAKE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8610678A FR2602018B1 (en) | 1986-07-23 | 1986-07-23 | HUB AND DRUM BRAKE ASSEMBLY FOR VEHICLE |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2602018A1 true FR2602018A1 (en) | 1988-01-29 |
FR2602018B1 FR2602018B1 (en) | 1988-10-21 |
Family
ID=9337660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8610678A Expired FR2602018B1 (en) | 1986-07-23 | 1986-07-23 | HUB AND DRUM BRAKE ASSEMBLY FOR VEHICLE |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE3722611A1 (en) |
FR (1) | FR2602018B1 (en) |
GB (1) | GB2192959B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9011496U1 (en) * | 1990-08-07 | 1990-10-11 | AL-KO Kober AG, 8871 Kötz | Swing arm wheel arrangement for vehicle axles |
DE102009027082B4 (en) | 2009-06-22 | 2017-07-13 | Saf-Holland Gmbh | Wheel bearing arrangement with centering |
DE102011004897B4 (en) * | 2011-03-01 | 2017-07-13 | Saf-Holland Gmbh | axle system |
DE102015216295B3 (en) * | 2015-08-26 | 2016-08-04 | Schaeffler Technologies AG & Co. KG | Hill Start Assist |
CN106585370B (en) * | 2016-12-12 | 2019-02-19 | 王刚 | Energy-efficient vehicle brake apparatus |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE958175C (en) * | 1950-12-03 | 1957-02-14 | Josef Schmitz | Double wheel set with individually rotatable wheels braked independently of one another with common brake shoes |
DE2630379A1 (en) * | 1975-07-07 | 1977-02-03 | Saab Scania Ab | STORAGE ARRANGEMENT FOR NON-DRIVEN WHEELS ON VEHICLES |
US4345673A (en) * | 1980-03-13 | 1982-08-24 | Towmotor Corporation | Wheel brake arrangement |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB272323A (en) * | 1926-04-27 | 1927-06-16 | Enfield Cycle Co Ltd | Improvements in or relating to internal expansion brakes for motor cycles and the like |
GB372903A (en) * | 1931-04-08 | 1932-05-19 | Bendix Brake Co | Improvements in or relating to vehicle wheels |
DE590395C (en) * | 1932-06-04 | 1934-01-06 | Dunlop Rubber Co | Vehicle wheel brake |
GB466975A (en) * | 1936-03-12 | 1937-06-09 | Dunlop Rubber Co | Improvements in hubs and brakes for vehicle wheels |
GB1090544A (en) * | 1964-07-31 | 1967-11-08 | Wagner Electric Corp | A brake mechanism |
US3500972A (en) * | 1968-06-14 | 1970-03-17 | Motor Wheel Corp | Sintered metal brakedrum |
DE1803076A1 (en) * | 1968-10-15 | 1970-05-27 | Bergische Stahlindustrie | Bike equipped with a double disc brake |
-
1986
- 1986-07-23 FR FR8610678A patent/FR2602018B1/en not_active Expired
-
1987
- 1987-06-29 GB GB8715255A patent/GB2192959B/en not_active Expired - Fee Related
- 1987-07-09 DE DE19873722611 patent/DE3722611A1/en not_active Ceased
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE958175C (en) * | 1950-12-03 | 1957-02-14 | Josef Schmitz | Double wheel set with individually rotatable wheels braked independently of one another with common brake shoes |
DE2630379A1 (en) * | 1975-07-07 | 1977-02-03 | Saab Scania Ab | STORAGE ARRANGEMENT FOR NON-DRIVEN WHEELS ON VEHICLES |
US4345673A (en) * | 1980-03-13 | 1982-08-24 | Towmotor Corporation | Wheel brake arrangement |
Also Published As
Publication number | Publication date |
---|---|
DE3722611A1 (en) | 1988-02-04 |
GB8715255D0 (en) | 1987-08-05 |
GB2192959B (en) | 1990-03-07 |
FR2602018B1 (en) | 1988-10-21 |
GB2192959A (en) | 1988-01-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |