EP0188468A1 - Element de boite de vitesses rotatif - Google Patents

Element de boite de vitesses rotatif

Info

Publication number
EP0188468A1
EP0188468A1 EP85903221A EP85903221A EP0188468A1 EP 0188468 A1 EP0188468 A1 EP 0188468A1 EP 85903221 A EP85903221 A EP 85903221A EP 85903221 A EP85903221 A EP 85903221A EP 0188468 A1 EP0188468 A1 EP 0188468A1
Authority
EP
European Patent Office
Prior art keywords
gear element
gear
element according
lightweight material
support body
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.)
Withdrawn
Application number
EP85903221A
Other languages
German (de)
English (en)
Inventor
Erich R. MÜLLER
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.)
ZWN Zahnradwerk Neuenstein GmbH and Co
Original Assignee
ZWN Zahnradwerk Neuenstein GmbH and Co
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 ZWN Zahnradwerk Neuenstein GmbH and Co filed Critical ZWN Zahnradwerk Neuenstein GmbH and Co
Publication of EP0188468A1 publication Critical patent/EP0188468A1/fr
Withdrawn legal-status Critical Current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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/0018—Shaft assemblies for gearings
    • F16H57/0025—Shaft assemblies for gearings with gearing elements rigidly connected to a shaft, e.g. securing gears or pulleys by specially adapted splines, keys or methods
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/02—Shafts; Axles
    • 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
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • 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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/14—Construction providing resilience or vibration-damping

Definitions

  • the invention relates to a rotating motor vehicle transmission element, in particular a gearwheel or shaft, with at least one running or support surface made of highly resilient material. It is known to produce the gears and shafts of a transmission either entirely from a heavy-duty metallic material or at least the running or support surfaces, ie the gear rim and the running surface of the hub in the case of a gear and the seats for the gears and the running surfaces for a shaft to manufacture the bearings from a particularly heavy-duty material or to harden them at these points, while these gear elements are otherwise made of a less resilient metal.
  • motor vehicle transmission is to be understood in particular as a car transmission.
  • transmission elements manufactured in a conventional manner are relatively heavy. On the one hand, this increases the total weight of the vehicle, so that each time the vehicle is accelerated, energy must be applied to accelerate the mass of the transmission elements. On the other hand, however, the moment of inertia of the gear elements also increases, so that when the motor accelerates, energy must be expended in order to accelerate the mass-sensitive gear elements in accordance with the desired angular acceleration.
  • gear elements also represent a cost factor if they are made of solid, high-quality material.
  • the invention is therefore based on the object of developing a gear element of the type mentioned in such a way that its weight and the ability to transmit sound vibrations are reduced and that less valuable and expensive materials are required for its production.
  • a support body of the gear element carrying the running or support surface consists at least partially of a lightweight material.
  • the object underlying the invention is thus completely achieved. If you use the lightweight material on those parts of the gear elements that only perform storage and support functions, the weight of the gear element can be significantly reduced, so that this also reduces the vehicle weight when the gear is installed and less energy is used to accelerate the rotating gear elements is.
  • lightweight construction material is only suitable to a limited extent to transmit vibrations, in particular sound vibrations, so that the use of transmission elements according to the invention in motor vehicle transmissions results in a significantly reduced transmission of vibrations of the drive motor via the transmission to the cardan shaft and the body.
  • the transmission elements according to the invention have the advantage that the lightweight construction material is a substantially less valuable material, so that valuable raw materials are saved, apart from the fact that such a composite construction with lightweight construction material also leads to remarkable cost savings.
  • Tool steel for example 16 MnCr 5
  • tool steel that is particularly suitable for ring gears.
  • a plastic in particular a glass fiber or carbon fiber reinforced plastic, can be used as a lightweight material in the context of the present invention, which is characterized by a particularly low weight with sufficient mechanical strength.
  • a ceramic for example a ceramic mat, can also be used as the lightweight material.
  • bitumen can also be used as a lightweight material.
  • the support body is provided with cavities, the weight is further reduced.
  • the gear element is a gearwheel, the ring gear and hub of which are made of the heavy-duty material, while a support body connecting the ring gear to the hub consists of the lightweight material.
  • the support body has a rim carrying the toothed ring, a sleeve surrounding the hub and spokes connecting the rim to the sleeve.
  • the cavities can be arranged in the spokes.
  • the gear element is a hollow gear shaft, the outer layer provided with seats for gear wheels made of the heavy-duty material, while an at least one inner layer supporting body consists of the lightweight material.
  • the hollow shaft has an outer layer made of steel, a first inner layer made of a ceramic mat, and again a second inner layer made of steel.
  • the ceramic mat is preferably 0.5 to 1 mm thick and heat-resistant up to 1400 ° C.
  • This hollow shaft manufactured in sandwich construction which is preferably produced by pressing two steel pipes with a ceramic mat in between, results in a particularly light gear element with low moment of inertia and high damping capacity for mechanical vibrations, in particular structure-borne noise.
  • Figure 1 is a side view of a disc-shaped gear according to the invention.
  • Fig. 2 is a sectional view taken along the line II-II of Fig. 1;
  • FIG. 3 shows a longitudinal section through a hollow shaft transmission according to the invention
  • 10 is a gear as it is used in a motor vehicle transmission.
  • the gearwheel 10 has a ring gear 11 which has teeth 12 and a tooth base 13 which is continuous.
  • the ring gear 11 is supported by a support body 14 in which it sits on an outer rim 15 of the support body 14.
  • An inner sleeve 16 of the support body is connected to the rim 15 via spokes 17.
  • the sleeve 16 encloses a hub 19, which is provided on the inside, for example, with a polygonal profile 20 for an outer polygonal profile or else with grooves for claws of a gear shaft.
  • the ring gear 11 and the hub 19 consist of a mecha nically heavy-duty material, for example a 16 MnCr 5 tool steel.
  • the hub 19 can be pressed into the sleeve 16 of the support body 14 as a bushing.
  • the support body 14 with rim 15, sleeve 16 and spokes 17 is made of a lightweight material, in particular a glass fiber or carbon fiber reinforced plastic.
  • Fig. 3 shows in longitudinal section a transmission hollow shaft 30 which encloses a cavity 31.
  • the hollow gear shaft 30 is manufactured in a sandwich construction and has an outer layer 32, a first inner layer 33 and a second inner layer 34, which are each arranged one inside the other. On the circumference of the hollow transmission shaft 30, 35 and 36 indicate two seats for gears, for example gears according to FIGS. 1 and 2.
  • FIG. 4 shows in a first variant a radial cross section through a hollow shaft 30a constructed in the manner of the hollow transmission shaft 30, which encloses a cavity 31a.
  • the layers are designated 32a, 33a and 34a.
  • claws 37 are provided on the circumference of the hollow shaft 30a in the area of the seats for gearwheels and engage in corresponding grooves in the hub of the gearwheels.
  • FIG. 5 shows a radial section through an exemplary embodiment of a hollow transmission shaft 30b, which encloses a cavity 31b and has layers 32b, 33b, 34b.
  • the hollow shaft 30b is provided on its circumference with a polygon profile 38, which is adapted, for example, to the shape of the polygon profile 20 of the gearwheel 10 according to FIGS. 1 and 2.
  • the exemplary embodiments according to FIGS. 3 to 5 have in common that the outer layer 32 or 32a or 32b consists of a heavy-duty metallic material, for example a tool steel.
  • the first inner layer 33 or 33a or 33b consists of lightweight material, in particular a ceramic, preferably a ceramic mat preferably has a thickness of 0.5 to 1 mm and is heat-resistant up to 1400 °, so that the shaft 30 or 30a or 30b can be hardened after the mechanical processing.
  • the second inner layer 34 or 34a or 34b again consists of a metallic material.
  • the hollow shafts 30 or 30a or 30b can be produced in such a way that two metallic tubes with an interposed ceramic mat are used, which is then brought into the shape according to one of FIGS. 3 to 5 during non-cutting deformation.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Gears, Cams (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

Un élément de boîte de vitesses rotatif, en particulier une roue dentée (10) ou un arbre, présente au moins une surface de roulement ou d'appui à base d'un matériau à forte capacité portante. Afin, en particulier pour des boîtes de vitesses de véhicules à moteur, de réduire le poids et la capacité de conduction du bruit du corps, un corps d'appui (14) de l'élément de boîte de vitesses, soutenant la surface de roulement ou d'appui, se compose au moins en partie d'un matériau de construction légère.
EP85903221A 1984-07-06 1985-07-05 Element de boite de vitesses rotatif Withdrawn EP0188468A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3424908 1984-07-06
DE3424908 1984-07-06
DE19843425600 DE3425600A1 (de) 1984-07-06 1984-07-11 Hohlwelle
DE3425600 1984-07-11

Publications (1)

Publication Number Publication Date
EP0188468A1 true EP0188468A1 (fr) 1986-07-30

Family

ID=25822673

Family Applications (2)

Application Number Title Priority Date Filing Date
EP85903215A Withdrawn EP0186695A1 (fr) 1984-07-06 1985-07-03 Arbre creux
EP85903221A Withdrawn EP0188468A1 (fr) 1984-07-06 1985-07-05 Element de boite de vitesses rotatif

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP85903215A Withdrawn EP0186695A1 (fr) 1984-07-06 1985-07-03 Arbre creux

Country Status (3)

Country Link
EP (2) EP0186695A1 (fr)
DE (1) DE3425600A1 (fr)
WO (2) WO1986000674A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2010996A4 (es) * 1988-01-21 1989-12-16 Helmut Pelzer Arbol amortiguador de vibraciones y procedimiento para su fabricacion
DE3803684A1 (de) * 1988-02-07 1989-08-17 Emitec Emissionstechnologie Gebaute getriebewelle
DE3805775A1 (de) * 1988-02-24 1989-09-07 Emitec Emissionstechnologie Gebaute getriebewelle
DE4214878C2 (de) * 1992-05-05 1996-02-29 Interelectric Ag Getriebeanordnung mit einer Achse aus einem harten Werkstoff
GB9405679D0 (en) * 1994-03-22 1994-05-11 Weatherford Lamb Fill valve
US5909771A (en) * 1994-03-22 1999-06-08 Weatherford/Lamb, Inc. Wellbore valve
DE19648996A1 (de) * 1996-11-27 1998-06-10 Ford Global Tech Inc Polygonverbindung einer Nabe mit einer Welle
FR2763267B1 (fr) * 1997-05-13 1999-07-16 Renault Procede de fabrication d'engrenages sur un arbre creux de boite de vitesses
DE20121923U1 (de) * 2001-06-16 2003-09-04 Zs Schmieranlagen Vertriebs Gm Zahnradabschmiermodul zur automatischen Schmierung von Windkraftwerken
BRPI0520462A2 (pt) 2005-08-04 2009-05-12 Neumayer Tekfor Holding Gmbh caixa de cámbio, especialmente para automóveis, e eixo ou eixos para tal e processo para a produção de tais eixos
DE102009017301A1 (de) * 2009-02-21 2010-08-26 Robert Bosch Gmbh Zahnradgetriebe mit einem auf einer Hohlwelle angeordneten Zahnrad
DE102019209056A1 (de) * 2019-06-24 2020-12-24 Zf Friedrichshafen Ag Sonnenwelle mit Verbundwerkstoff

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1790656U (de) * 1959-04-03 1959-06-18 Werner Reusche Teleskop-hohlwelle fuer gelenkwelle.
US3200665A (en) * 1963-02-14 1965-08-17 Wells Martin Gears
US3936926A (en) * 1974-02-22 1976-02-10 Ingersoll-Rand Company Method of coupling compressor impellers and shafts
US4006993A (en) * 1975-11-25 1977-02-08 Borg-Warner Corporation Shaft mounting arrangement
GB2013556B (en) * 1977-12-22 1982-06-09 Gkn Group Services Ltd Shaft and universal joint member assembly
US4348247A (en) * 1979-02-26 1982-09-07 Rockwell International Corporation Method of fabricating a reinforced tubular structure
DE2914657C2 (de) * 1979-04-11 1984-01-12 Gesenkschmiede Schneider Gmbh, 7080 Aalen Gestufte Hohlwelle mit Außenverzahnungen
GB2059546A (en) * 1979-09-08 1981-04-23 Advanced Composite Componenets Lined Hollow Shafts
FR2469610A1 (fr) * 1979-11-08 1981-05-22 Paris & Du Rhone Perfectionnements aux elements de machines associes a un arbre tournant, notamment roues de ventilateur
US4340317A (en) * 1981-05-07 1982-07-20 Northern Research & Engineering Corp. Splineless coupling means
IE53249B1 (en) * 1981-09-04 1988-09-14 Anderson Cook Inc Method for making a composite metal-plastic gear
JPS58128561A (ja) * 1982-01-23 1983-08-01 Honda Motor Co Ltd 歯付伝動プ−リ
DE3230116A1 (de) * 1982-08-13 1984-02-16 Arendts, Franz Joseph, Prof., 8000 München Anschlussverbindung fuer treibende oder angetriebene hohlwellen aus faserverbundwerkstoff
FR2634991A3 (en) * 1988-08-05 1990-02-09 Morice Cie Traitogaz Ets Modular item of kitchen furniture including tubular uprights

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8600677A1 *

Also Published As

Publication number Publication date
WO1986000674A1 (fr) 1986-01-30
WO1986000677A1 (fr) 1986-01-30
EP0186695A1 (fr) 1986-07-09
DE3425600A1 (de) 1986-01-16

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Inventor name: MUELLER, ERICH, R.