WO2010031108A9 - An epicyclic transmission - Google Patents
An epicyclic transmission Download PDFInfo
- Publication number
- WO2010031108A9 WO2010031108A9 PCT/AU2009/001187 AU2009001187W WO2010031108A9 WO 2010031108 A9 WO2010031108 A9 WO 2010031108A9 AU 2009001187 W AU2009001187 W AU 2009001187W WO 2010031108 A9 WO2010031108 A9 WO 2010031108A9
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- elements
- assembly
- planet
- assemblies
- constrained
- Prior art date
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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
Definitions
- This invention relates to devices for the transmission of mechanical power in the form of rotational motion.
- it is directed to transmission of power between a first rotationally movable element and a second rotationally movable element to provide a device which can provide, in a preferred form, continuously variable ratios, of angular velocity at an input to angular velocity at an out ut within the range of ratios - 1 : 1 to 0 to + 1 : 1.
- the present Invention finds use in electronic, hydraulic or mechanical applications and, In a preferred form, provides variable input and output speeds; an output angular velocity that varies from 0 to + the gear ratio as the i nput varies from zero to the input angular velocity; torque multiplication ; the ability to vary speed and torque. Furthermore, the present invention provides multiple Inputs and/or outputs and reduction, step up or 1 : 1 gear ratios.
- This invention includes the use of a planetary drive, that is a drive which includes a set of rollers, bearings or similar moveable parts, arranged in a circle around an axis and configured so that, through their movement in concert, apply torque to a body whose resultant rotation is used as the output of the drive.
- planetary drives are manufactured by Sumitomo Heavy Industries Ltd, Japan, under the name "Cyclodrive”. Although planetary gears are known, the prior art gears have failed to take advantage of certain of their features, in particular, the contra-rotational nature of the input and output shafts being on the same axis.
- the Roller gearing is optional, can replace existing GearBOX gears with Planetary gears including "Toothed” or Hydraulic or anv suitable Pumps, f Advancing "Wheels Within Wheels” including as stated in page 8).
- the Variable BELTS are no longer needed on CVT Transmissions, or Hybrid or single ended. 1 Now including added Roller cages for lubrication. fif Eeeentrjc/ cam/sun gear planetary Gearing in chosen) - or optionally without these cages Now with any number of Intermediate rollers on either or both sides of the cage/carrier or one side only or without them.
- Eccentric sun gear is chosen OR NOW WITH Bush onl y can be used.
- cams can be of anv profile shape used now.
- this 23 allows them to return progressively back to a high torque 4 to 1 reduction ratio.
- Previous patent wording "Haying at least one input and one output and being of the epicyclic type involving interaction of three mechanically distinct rotating elements with any suitable form that allows the transfer of torque between input and output, namely a sun element, a ring element and a planet element in each of at least first and second unequal co-axial epicyclic assemblies, a first element of the first assembly and a first element of the second assembly able to rotate independently, the first element of the second assembly able to enclose the control means and able to be totally within the first rotating element of the first assembly, a second rotating element of the first assembly and a second rotating element of the second assembly being constrained to rotate at a common angular velocity, a third element of the First assembly being connected to a motive source, and control means for progressively changing the gear ratio applied to a load fEnd previous original PAGE 1 - 1
- Pace 21 connected to the first element of the first assembly of the "Transmission”, (referred to as an “eM Dean” or “Variable Ratio Multi-gear” sometimes) characterised in that the first and second assemblies each represent unequal fixed gear ratios respectively between the input and the output of the "Transmission” or “Variable Ratio Multi-gear” the first and second assemblies arranged so that if Individually each assembly has their first element constrained and their thi rd element rotated in a certain direction the second element will try to rotate in the opposite direction relative to the tendency of the other assembly the control means being operative to progressively increase or decrease the output gear ratio in accordance with the demand for an output lower or higher gear stage of operation .
- the "roller” gear can be integrated with other planetary gear designs optionally, - is described as follows wherein the first elements are the ring elements of the respective assemblies, the ring elements being outer bodies having spaced endless scallop guides being adapted to receive sets of planet elements being in the form of rollers, the second rotating elements comprising of planet carrier elements and planet elements, the planet carrier elements of the respective assemblies constrained to rotate about an axis collinear with the axes of their respective third elements, the planet carrier elements locating and controlling the motion of integral spaced sets of rollers corresponding to the planet elements of each assembly, the rollers bridging .
- the planet carrier elements being constrained by a rotation controlling means allowing free rotation in one direction and a controlled rotation in the other direction, the third elements of the assemblies being sun elements in the form of respective sungears / cams or eccentrics.
- Fig l shows the variable options with internal - either single electric or double contra- rotation and further, optionally three rotor electrical control variations.
- the electrical coils were then shown as with multiple hypothetical abilities, with Fig 2 explaining the practical necessities as to how the ring-gears would be physically constructed for the optional external one or more or combined power sources including for Hybrid applications.
- the ground reference WAS/ is shown with the shaded area of the housing, in order to more easily see how energy storage is actuated we can refer to the first Patent Windmill experiment.
- Several alternative methods have been described with some trailed, within the previous pages.
- divisional Patent 2003204953 (from AU 93246/98) There was is described how by placing a small wind turbine blade on the Input cam (sun gear), being the First input, say at 6 to l ratio.
- the large blade r provides added torque from both the first small wind turbine blade together with the large blade returning adding stored reactive energy as well as from the wind.
- the load will eventually turn faster than either of them and the load will also turn faster than both - the two input rotation speeds add together on the load.
- the "duty cvcle" of the windmill is thereby increased substantially not only because it absorbs recoverable energy, but pyercomino the common problem of the unpredictability of sufficient wind to get a load started.
- contra-rotating blades/turbines are known to increase wind pressure bv Fans by 270% In wind Tunnel tests,
- VASSTCO Variable Automatic Self Supporting Transmission Co.
- Ring gear body optionally.
- the Electric Motor Rotor can even be Keyed to e driveshaft. as from the gas engine of any type of engine for Hybrid Operation.
- ba k or front differential can be chosen to fit the Mechanics and Electrics to.
- Constant Velocity Joints can be discarded.
- the scallops can be machined inside the wheel hub, inside complete with motor, (or contra-rotating motor).
- other epi-cyclic designs could be used where the bodies may be, for example within each other.
- pump combinations may be used without differentiating from the present invention.
- the iateet obsolete Patent PCT/AU02/00305 do djd. have a split body, but between the first epicyclic movement's double carrier as an alternative design).
- Figure 1 shows a transmission (referred to as an "eM Dean” Gear or “Variable Ratio Multi-Gear” sometimes) input shaft 13 with
- the previous alternative rotors can now still be duplicated internally concentrically, being shown as options here and also with dotted lines which were In the Fig ⁇ Converter Patent AU 742781 ,or 35198/01 according to This invention as well can apply an input which is a rotor (14) an output (21) and electrical coil and permanent magnet arrangements (23 - 25) that did apply torques respectively to rotors ( 14, 15) and a planet element in the form of a cage (22).
- the rotor (14) and input shaft (13) are combined as an integrated part in this module.
- the rotor (14) could be removed and the input could be solely from an external motive source driving the input shaft (13).
- the point is the module comprising the groupings 11 and 12 remains the same.
- Assembly 11 is the first unequal coaxial assembly and comprises of a cam ⁇ sun- element ⁇ (17), bearing (18) and rollers ⁇ planet-element ⁇ (20).
- the cam (17) is fixed to. the input shaft (13), which is therefore fixed to the input.
- the bearing (18) has an inner sleeve fitted to the outer diameter of the cam (17).
- the bearing has an outer sleeve, the outer sleeve of the bearing (18) makes contact with the rollers (20). As the input rotates, the am (17) causes the bearing (18) to move in an eccentric fashion.
- rollers (20) This causes the rollers (20) to be cyclically displaced away and towards the central axis of the eM Dean Gear the total displacement relative to this central axis, being twice the cam axis offset from this axis.
- the rollers (20) are located in equally spaced guides in the cage ⁇ planet element ⁇ (22).
- the rollers (20) make contact with scallops In the output ⁇ ring element ⁇ (2l).
- the number of scallops relative to the number roller in contact with the scallops determines the direction of rotation it would rotate the output (21) if the cage (22) was held still.
- One more scallop than the number of rollers gives an output rotation direction the same as the cam rotation.
- One less scallop than the number of rollers would give an output rotation the opposite to the cam rotation.
- the scallops are so shaped that as the rollers are acted on by the cam, the scallops rotate relative to the cage at a constant angular velocity ratio to ' that of the cam.
- the cage (22) is constrained by a rotation blocking means in such a way as to allow the cage (22) to only rotate in a direction the same as the output (21). Therefore because of the reactive forces, the cage (22) will be held against the rotation blocking means and will therefore be stationary relative to the frame (26) with Just the actions of assembly 11 alone.
- a “Solid Body” now encloses the second body able to be totally within and there is a very compact “Torque Multiplier” design provided as a result.
- the carrier 22 can now be actuating energy storage internally by being forced into a reversing direction to the load direction, this can provide pumping (or even a coiled torsion spring can absorb energy)
- the pumping can be integrated with internal accumulation or external accumulation for regeneration.
- two one way clutches to reference the carrier 22 to ground accessed sequentially through the internal Ring Gear 45.
- one wav control/restriction such as concentric extension of Carrier/Caoe 22 from either end, or from 13B Shaft.
- the one way clutches can be similar to as described in Arthur Woodbridqe's Patent AU 607822 being used for a clever "Spin Control Differential" for vehicles fOR ANY VERY SIMPLE ONE WAY RESTRICTIONS can be used).
- This Patent is now assigned to me. There is the option of having automatically reversing one way clutches if reverse direction of the load is required and motor braking is needed. However if required a motor brake one way clutch may be fitted between the input shaft and output of the gearing , .
- the rollers will rotate about there own axis as they move in relation to the scallops.
- the bearing (18V (OR BUSH) is added to eliminate the sliding action of roller
- the output (21) is constrained to rotate about the central axis of the input shaft (13).
- the cyclical movement of the rollers (20) acting on the scallops alone, causes the output (21) to rotate at a. reduced rotational speed depending on the number of rollers and scallops.
- the ratio would be one output (21) revolution for every FOUR five revolutions of the cam (17) with the output (21) rotating in the same direction as the cam ( 17).
- Assembly 12 is the second unequal coaxial assembly and comprises of a rotor (15), cam (16), and rollers (19).
- the scallops in the second ring gear 45 make contact with the rollers (19) which make contact with the cam (16).
- the cam (16) Is fixed to the rotor (15) (shown as an internal clutch drum, now for lower value applications) Alternatively there is now Automatic Variability and Self Governing with internal REDIRECTION OF FLUID pressure, refer Claim 12.
- a bearing would be fitted to the outside diameter of the cam (16).
- the number of scallops and rollers for assembly 12 are different to the numbers for assembly 11.
- the rollers are located in equally spaced guides in the cage (22).
- the cage therefore bridges axially between assemblies 11 and 12 and the rollers (19) are constrained to rotate at the same angular velocity about the central axis of the input shaft (13) as the rollers (20) of assembly 11.
- the numbers of scallops and rollers are such that if the cage (22) is held relative to the frame (26), the internal ring gear 45 tends to cause the cam (16) to rotate with an angular velocity in the SAME or opposite direction to cam f 17).
- cam f !6 rotates in the same direction as cam (17), the output is thereby reversed as in cam (16 ⁇ .
- the cam (16) ill have «e effect on the output angular velocity when tmtH the electrical coils of items 24 are activated. With the electrical coils activated, a torque is transmitted through the rotor (15) to the cam (16). The electrical colls could be activated so that the torque acts in the same or opposite direction as the rotation of the cam (16). If the torque acts In the same direction as the rotation of the cam (16), the output would rotate at the angular velocity determined by the fixed ratio but with an Increased torque dependant on the amount of torque contributed by items 24.
- assembly 12 will act so as to try and cause the output (21), to rotate in the opposite direction and the cage (22) in the same direction as the input.
- cam (16) tend to Mock' the cage (22) to the input rotation.
- the cage (22) is free to rotate in the direction of the input (cam (17)).
- the cage (22) therefore tends to cause the output (21) to rotate as one with the input.
- Figure 2 shows another embodiment of a "eM Dean” Gear, in this case there is a combination of a module 10 with extensions (on the right-hand half) that enable further multiple fixed ratios to be obtained from the one eM Dean Gear
- the module 10 shows the central concept of the present invention.
- the Input is via a separate motive source (not shown) acting through the input shaft (13).
- the output is the ring element or body (21).
- Fig 2 For example there is now the option of a second internal body ring -gear with added cam on the right hand side which can be actuated by optionally removing the two bolts and allowing the new second internally shown with arrows.
- the ring-gear with output 51 can then itself drive another cage with a cam coupled to It so as to provide such as overdrive features.
- Another cage/cam is shown able to be driven which can provide reversing features by breaking it from being operating in a forward direction of the chosen output.
- the first unequal coaxial assembly comprises of a cam ⁇ suh-gear ⁇ (17), and rollers ⁇ planet-gears ⁇ (20) and the ring element or body (21).
- the cam (17) is fixed to the input shaft (l3).
- the outer diameter of the cam (17) makes contact with the rollers (20).
- the cam (17) outer diameter moves in an eccentric fashion. This causes the rollers (20) to be cyclically displaced away and towards the central axis of the "eM Dean” Gear as also described in the "A Converter" prior Patent AU 742781 and A 35198/01, explaining the advance here as follows - "the total displacement relative to this central axis, being twice the cam axis offset from this axis.
- the rollers (20) are located in equally spaced guides in the cage ⁇ planet carrier ⁇ (22). The rollers
- the cage (22) is constrained by a rotation blocking means in such a way as to allow the cage (22) to only rotate in a direction the same as the output (21). Therefore
- the cage (22) will be held against the rotation blocking means and will therefore be stationary relative to the frame (the structure holding mounting the motor etc.) with just the actions of assembly il alone.
- the rollers will rotate about there own axis as they move in relation to the scallops.
- a bearing OR BUSHO could be fitted to the outside diameter of the cams (16 & 17) to eliminate the sliding action of roller (19 & 20) against cam (16 3 ⁇ 4 17), which would occur (if they were in direct contact) because of the difference In their circumferential speeds.
- the output (21) is constrained to rotate about the central axis of the input shaft (13) ' .
- the cyclical movement of the rollers (20) acting on the scallops alone, causes the output (21) to rotate at a reduced rotational speed depending on the number of rollers and scallops.
- the ratio would be one output (21) revolution for every five revolutions of the cam (17) with the output (21) rotating In the same direction as the cam (17).
- the second unequal coaxial assembly comprises of a cam (16), and rollers (19) and inner body (45)
- the scallops in the body (45) make contact with the rollers (19) which make contact with the am (16).
- the number of scallops and rollers for the assembly are different to the first assembly 11.
- the rollers are located in equally spaced guides in the cage (22).
- the cage therefore bridges axially between assemblies 11 and 12 and the rollers (19) are constrained to rotate at the same angular velocity about the central axis of the Input shaft (13) as the rollers (20) of assembly 11.
- the numbers of scallops and rollers are such that if the cage (22) is held relative to the frame, the body (45) tends to cause the cam (16) to rotate with an angular velocity in the gAMEopposite direction to cam (17).
- the ratio would be one body (45) revolution for every FQIJR_thrce revolutions of the cam (16), with' the body (45) rotating in the SAME oppoitc direction to the cam (16).
- cam (16) If the assembly 11 cam (17) is caused to rotate, the body (45) will rotate at ⁇ another angular velocity, being a fixed ratio to the input angular velocity.
- the assembly 12 cam (16) will rotate at an angular velocity dependent on the fixed ratio of assembly 12, and for the central concept of the present invention, in the SAME opposite direction to cam (17). If assembly 12 was arranged so that cam (16) rotated in the same direction as cam (17), the output would be reversed if cam (16) was braked.
- the amount of rotation of the cage (22) and therefore the amount of superimposed rotation Is determined by the relative differences in the outpu resistive torque (hereafter called the 'load') and the Input torque from the cams (17 & 16).
- the 'load' lowers relatively and the torque acting on cam (16) is increased, the less is the torque required from cam (17).
- the proportion of torque from cam (16) relatlve-to cam (17) increases, the more the output (21) tends to be 'locked' to the input and the more the ratio of input to output angular velocity tends to approach 1:1.
- the output gear ratio therefore can be progressively decreased from the fixed ratio of the first assembly to a 1:1 ratio by progressively increasing the torque acting on the cam (16) from zero to a value that causes the cage (22) to be Mocked' fully to the input.
- the output torque is inversely proportional to the output angular velocity.
- the input torque to cam (16) can be through another motive source or a clutch mechanism connecting the input shaft (13) to the extension of cam (16). If a clutch mechanism was used, the control mechanism could be automatic and linked to the output speed through the use of a centrifugal clutch. With a centrifugal clutch arrangement, a the speed of the output increases the clutch engages and tends to turn cam (16) in the same direction as the input, cam (17).
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
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Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09813875A EP2337971A4 (en) | 2008-09-16 | 2009-09-10 | An epicyclic transmission |
AU2009295250A AU2009295250A1 (en) | 2008-09-16 | 2009-09-10 | An Epicyclic Transmission CORRECT |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2008904685A AU2008904685A0 (en) | 2008-09-16 | All planetary gears and pumps | |
AU2008904685 | 2008-09-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2010031108A1 WO2010031108A1 (en) | 2010-03-25 |
WO2010031108A9 true WO2010031108A9 (en) | 2012-04-12 |
Family
ID=42038998
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU2009/001187 WO2010031108A1 (en) | 2008-09-16 | 2009-09-10 | An epicyclic transmission |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2337971A4 (en) |
AU (1) | AU2009295250A1 (en) |
WO (1) | WO2010031108A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2012236141B2 (en) | 2011-04-01 | 2016-11-17 | Terravia Holdings, Inc. | Biomass-based oil field chemicals |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AUPP604398A0 (en) * | 1998-09-18 | 1998-10-15 | Dean, Malcolm Leonard Stephen | Variable ratio multi-gear |
AUPR377601A0 (en) * | 2001-03-16 | 2001-04-12 | Dean, Malcolm Leonard Stephen | Variable ratio multi-gear |
AU2002952792A0 (en) * | 2002-11-15 | 2002-12-05 | Malcolm Leonard Stephen Dean | Variable ratio multi-gear |
-
2009
- 2009-09-10 AU AU2009295250A patent/AU2009295250A1/en not_active Abandoned
- 2009-09-10 EP EP09813875A patent/EP2337971A4/en not_active Withdrawn
- 2009-09-10 WO PCT/AU2009/001187 patent/WO2010031108A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
EP2337971A1 (en) | 2011-06-29 |
EP2337971A4 (en) | 2011-09-28 |
WO2010031108A1 (en) | 2010-03-25 |
AU2009295250A1 (en) | 2010-03-25 |
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