SE428238B - Gearbox with continually variable ratio - Google Patents

Gearbox with continually variable ratio

Info

Publication number
SE428238B
SE428238B SE8200272A SE8200272A SE428238B SE 428238 B SE428238 B SE 428238B SE 8200272 A SE8200272 A SE 8200272A SE 8200272 A SE8200272 A SE 8200272A SE 428238 B SE428238 B SE 428238B
Authority
SE
Sweden
Prior art keywords
cylinder
gear
shaft
gearbox
pulleys
Prior art date
Application number
SE8200272A
Other languages
Swedish (sv)
Other versions
SE8200272L (en
Inventor
H Schlicker
Original Assignee
Volvo Ab
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 Volvo Ab filed Critical Volvo Ab
Priority to SE8200272A priority Critical patent/SE428238B/en
Publication of SE8200272L publication Critical patent/SE8200272L/en
Publication of SE428238B publication Critical patent/SE428238B/en

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
    • F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
    • F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
    • F16H9/04—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes
    • F16H9/12—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members
    • F16H9/16—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using two pulleys, both built-up out of adjustable conical parts
    • F16H9/18—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using two pulleys, both built-up out of adjustable conical parts only one flange of each pulley being adjustable
    • 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
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/021—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings toothed gearing combined with continuous variable friction gearing

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmissions By Endless Flexible Members (AREA)

Abstract

Gearbox, in particular for motor vehicles, with a driving and a driven shaft which carry pulleys 8, 18, between which pulleys torque is transmitted by means of a V-belt or chain 33. The pulleys consist of disc parts 13, 14, 19, 20 movable towards and away from each other, to enable variation of the speed ratio between the shafts. The movement of the discs and the squeezing force against the V-belt are controlled by means of hydraulic cylinder devices. The hydraulic cylinder 11 of the driving shaft is connected with a gear 6 arranged concentrically with the cylinder and engaging a gear 6 on the input shaft 1 of the gearbox. <IMAGE>

Description

' 8200272-6 10 15 eo 25 50' 35 RO tvärställda motorer, där motorutrymmet i sidled är mycket begränsat. Dessutom uppnås víktbesparing. '8200272-6 10 15 eo 25 50' 35 RO transverse motors, where the lateral motor space is very limited. In addition, weight savings are achieved.

I en föredragen utföringsform av växellådan enligt uppfin- ningen är även backdrevet anordnat koncentriskt med cylindern, varvid bägge kuggdreven är utformade i ett stycke med cylin- dern. Genom att fräsa drevens kuggar direkt i cylindermateria- let uppnås dels ett ekonomiskt framställníngsförfarande och dels enkel montering genom att i princip tre delar kan mon- teras som en enhet; Uppfinningen beskrives närmare under_hänvisning till på bi- tfogade_ritning visade utföringsexempel, där figuren visar ett längdsnitt genom en växellåda enligt uppfinningen.In a preferred embodiment of the gearbox according to the invention, the reverse gear is also arranged concentrically with the cylinder, both gears being formed in one piece with the cylinder. By milling the gears of the gears directly in the cylinder material, an economical manufacturing process and easy assembly are achieved in that in principle three parts can be mounted as a unit; The invention is described in more detail with reference to exemplary embodiments shown in the accompanying drawing, in which the figure shows a longitudinal section through a gearbox according to the invention.

I figuren betecknar 1 en ingående axel, på vilken ett kuggdrev 2 är roterbart lagrat. Med 3 betecknas en kopplingsanordning.In the figure, 1 denotes an input shaft, on which a gear 2 is rotatably mounted. 3 denotes a coupling device.

Kuggdrevet 2 år låsbart på axeln 1 medelst en klokoppling H, som är samordnad med ett backdrev 5. Kuggdrevet 2 ingriper med ett kuggdrev 6 på en axel 7, som uppbär en remskiva 8. I figuren visas dreven i neutralläget. Vid förskjutning av kopp- lingen 4 med drevet 5 åt höger i figuren låses drevet 2 på den ingående axeln 1 och växeln för körning framåt är inlagd.The gear 2 is lockable on the shaft 1 by means of a jaw coupling H, which is coordinated with a reverse gear 5. The gear 2 engages with a gear 6 on a shaft 7, which carries a pulley 8. The figure shows the gears in the neutral position. When the clutch 4 is displaced with the gear 5 to the right in the figure, the gear 2 is locked on the input shaft 1 and the gear for driving forward is engaged.

Backväxeln ilägges genom att ett med streckade linjer antytt mellankugghjul 9 bringas i ingrepp med backdrevet 5 och ett med axeln 8 förbundet kugghjul 10. x Kuggdreven 6, 10 är utformade i ett stycke med ett cylíndriskt element 11, som bildar en hydraulcylinder för ett kolvelement 12, vilket är fast förbundet med den ena 13 av remskivans 8 bägge skivor 13 och 14, vilken är förskjutbar på axeln 7. Cy- linderrummet 15 bakom kolven 12 är förbundet med en tryckkälla via en anslutning 16. Genom att på detta sätt låta hydraul- cylindern 11 på sin utsida bilda kuggdreven 6 och 10 åstad- kommes en synnerligen kompakt konstruktion. ' En utgående axel 17 är på motsvarande sätt försedd med en rem- skiva 18, vilken består av två skivor 19 och 20, av vilka skivan 19 är förbunden med en kolv 21, som är förskjutbar i en cylinder 22, vars cylinderrum 23 är anslutet till en tryckkälla via en anslutning 211. Skivan 19 är' förbelastad mot skivan 20 av en fjäder 25. 8200272-6 'The reverse gear is engaged by engaging a dashed gear 9 indicated by broken lines with the reverse gear 5 and a gear 10 connected to the shaft 8. The gears 6, 10 are formed integrally with a cylindrical element 11, which forms a hydraulic cylinder for a piston element 12. , which is fixedly connected to one 13 of both pulleys 13 and 14 of the pulley 8, which is displaceable on the shaft 7. The cylinder space 15 behind the piston 12 is connected to a pressure source via a connection 16. By allowing the hydraulic the cylinder 11 on its outside forming the gears 6 and 10 provides an extremely compact construction. An output shaft 17 is correspondingly provided with a pulley 18, which consists of two discs 19 and 20, of which the disc 19 is connected to a piston 21, which is displaceable in a cylinder 22, the cylinder space 23 of which is connected to a pressure source via a connection 211. The disc 19 is 'preloaded against the disc 20 by a spring 25. 8200272-6'

Claims (5)

azoozvà-6 10 15 20 25 30 '55 Patentkravazoozvà-6 10 15 20 25 30 '55 Patent claim 1. Växellåda, i synnerhet för motorfordon, vilken på en drivande respektive driven axel uppbär remskivor, mellan vilka moment överföres medelst ett ändlöst, böjligt element, t. ex. kilrem eller metallkedja och vilka består av ett par skivdelar, vars inbördes avstånd är varierbart på respektive axel för att variera remskivornas verksamma radie och därmed utväxlingen mellan den drivande och drivna axeln, varvid den drivande axeln uppvisar en koncentriskt med axeln anordnad och med axeln förbunden fluidumcylinder som innehåller en med den ena skivdelen förbunden förskjutbar kolv, k ä n n e - t e c k n a d a v att cylindern (11) är förbunden med ett koncentriskt med cylindern anordnat kuggdrev (6), som íngriper med ett kuggdrev (2) på växellådans ingående axel (1).Gearbox, in particular for motor vehicles, which on a driving or driven axle carries pulleys, between which torques are transmitted by means of an endless, flexible element, e.g. V-belt or metal chain and which consist of a pair of disc parts, the mutual distance of which is variable on each shaft to vary the effective radius of the pulleys and thus the gear ratio between the driving and driven shaft, the driving shaft having a fluid cylinder arranged concentrically with the shaft and connected to the shaft which contains a displaceable piston connected to one part of the disc, characterized in that the cylinder (11) is connected to a gear (6) arranged concentrically with the cylinder, which engages with a gear (2) on the input shaft (1) of the gearbox. 2. Växellåda enligt krav 1, k å.n n e t e cgk n a d a v att cylindern (11) är förbunden med ett andra, koncentriskt med cylindern anordnat kuggdrev (10), som bildar ett backdrev för ingrepp med ett mellan-kugghjul (9).Gearbox according to claim 1, characterized in that the cylinder (11) is connected to a second gear (10) arranged concentrically with the cylinder, which forms a reverse gear for engagement with an intermediate gear (9). 3. Växellåda enligt krav 2,. k ä n n e t e c k n a d a v att åtminstone ett av dreven (10) är anordnat på cylinderns (11) mantel.Gearbox according to claim 2 ,. characterized in that at least one of the gears (10) is arranged on the jacket (11) of the cylinder (11). 4. H. Växellåda enligt krav 2, k ä n n e t e c-k n a d a v att ett av dreven (6) bildar cylinderns (11) gavel.H. Gearbox according to claim 2, characterized in that one of the gears (6) forms the end of the cylinder (11). 5. Växellåda enligt något av kraven 2 - Ä, k ä n n.e - t e c k n a d a v att cylindern (11) och åtminstone ett av nämnda kuggdrev (6, 10) är utformade i ett stycke med var- andra.Gearbox according to any one of claims 2 - Ä, k e n e - t e c k n a d a v that the cylinder (11) and at least one of said gears (6, 10) are formed in one piece with each other.
SE8200272A 1982-01-19 1982-01-19 Gearbox with continually variable ratio SE428238B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8200272A SE428238B (en) 1982-01-19 1982-01-19 Gearbox with continually variable ratio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8200272A SE428238B (en) 1982-01-19 1982-01-19 Gearbox with continually variable ratio

Publications (2)

Publication Number Publication Date
SE8200272L SE8200272L (en) 1982-06-13
SE428238B true SE428238B (en) 1983-06-13

Family

ID=20345767

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8200272A SE428238B (en) 1982-01-19 1982-01-19 Gearbox with continually variable ratio

Country Status (1)

Country Link
SE (1) SE428238B (en)

Also Published As

Publication number Publication date
SE8200272L (en) 1982-06-13

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