US1370080A - Variable-speed gear - Google Patents
Variable-speed gear Download PDFInfo
- Publication number
- US1370080A US1370080A US331170A US33117019A US1370080A US 1370080 A US1370080 A US 1370080A US 331170 A US331170 A US 331170A US 33117019 A US33117019 A US 33117019A US 1370080 A US1370080 A US 1370080A
- Authority
- US
- United States
- Prior art keywords
- rollers
- variable
- speed gear
- crown
- contact
- 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.)
- Expired - Lifetime
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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
- F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
- F16H15/48—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members with members having orbital motion
- F16H15/50—Gearings providing a continuous range of gear ratios
-
- 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
- F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
- F16H15/48—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members with members having orbital motion
- F16H15/50—Gearings providing a continuous range of gear ratios
- F16H15/52—Gearings providing a continuous range of gear ratios in which a member of uniform effective diameter mounted on a shaft may co-operate with different parts of another member
-
- 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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H2001/2881—Toothed gearings for conveying rotary motion with gears having orbital motion comprising two axially spaced central gears, i.e. ring or sun gear, engaged by at least one common orbital gear wherein one of the central gears is forming the output
Definitions
- rlhe present invention consists in the use of one or more planetary rollers held in a supporting .frame which is rotated by the source of motive power, the axis of the planetary rollers bein simply obliged to remain in a plane passing through the axis of the supporting frame. Under the action of centrifugal or centripetal force, the planetary rollers come in contact by means of -their surfaces-d1 and d2 with two crown pieces, one of which, D1, vis fixed, while the second, D2, is movable about the axis of rotation of the supporting frame (Fig. 1.)
- crown piece D2 is given a rotary movement at various speeds according to the case,
- Figure 1 shows in longitudinal section 4a device constructed in accordance with the invention. 'Figl la frame;
- Figs. 2, 3, 4, 5 and 6 show modifications is an end view of the supporting of the apparatus according to the invention.
- Fig. 7 shows another modification to@ gether with direct drive.
- the variation of the diameter of rolling either by designing the rollers and crown pieces in conical shape with straight or) ⁇ curved generatrices, in which case the relative displacement of the parts along the axis causes the modication'of Athe diameters' of rolling contact (Fig. 2), or by increasing or ldiminishing the diameter of the crown pieces by the use of various concentric clamping andunclamping devices after the manner of the chucks employed on machine l tools (Fig. 3), or by the stoppage of one of the crown pieces in a series D1 containing several crown pieces disposed in line (F ig. 4), (in this case the rollers or crowns can be provided with gear teeth), or again, by any other suitable means such as increase or diminution of the diameters of rolling contact by the action of fluids under pressure (Fig. 5).
- the method shown in Fig. 7 is characterized by the use of a speed variation v caused by the longitudinal displacement of the crown piece D2, together with a design which allows of automatically separating the planetary rollers from the crown piece D1, especially in the case where theposition of the crown piece D2 causes its speed to equal the speed of the supporting frame.
- a set of tenons mounted on the supporting frame is made to enter corresponding openings in 'the crown piece D2, and the coupling is now made in a direct manner; the action of the rollers is here suppressed, and the driving shaft is connected directly with the operated shaft.
- a lvariable speed gear comprising a driving shaft and a drivenshaft, planetaryv rollers having two rolling surfaces, a rotary supporting frame for lsaid rollers-v fixed to one of'theshafts and lhaving radial slots in which the shafts of the roller are slidably inountedfa fixed internally ared member ragainst which one of the rolling surfaces of radial slots in which the shafts of the'rollers said members Y receiving a conical shape y whereby the ratio of the diameters of rollare slidably mounted, all lined internally geared member 4,against which. one of the rollingsurfaces of 'Said rollers rolls, 'rotata- 5 ble internally geared member fixedv to.
- rollersvrollsytbe v ing tools for contact can be varied.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Friction Gearing (AREA)
- General Details Of Gearings (AREA)
- Retarders (AREA)
Description
" F. AHOND.
VARIABLE SPEED GEAR. APPL|cAT|oN-r|LED OCT. 16. 1919.
.El ,$370,080. Patented Mar. 1, 1921.
2 SHEETS-SHEET l- Fig Figi@ Figl F. AHOND.
VARIABLE SPEED GEAR.
APPLICATION FILED ocr. I6. 1919.
' 1,370,080, Patented Mar. 1,1921;
2 SHEETS-SHEET 2- F1 g. 5 Fig. 6
ATT/y.
naar
TAFS
rica.
FLIX AHOND, OF PARIS, FRANCE.
vAnrABLn-srnnn enna.
- specification of Letters Patent.
4Application filed 0ctober`16, 1919. Serial No. 331,170.
To all whom 'it may concern p Be it known that l, FLIX AHoND, citizen of the Re ublic ofl France, residing at 5 Boulevard rnano, Paris, Seine, in the Republic of France, have invented new and useful improvements in Variable-Speed Gears, of which the following is a specification.
rlhe present invention consists in the use of one or more planetary rollers held in a supporting .frame which is rotated by the source of motive power, the axis of the planetary rollers bein simply obliged to remain in a plane passing through the axis of the supporting frame. Under the action of centrifugal or centripetal force, the planetary rollers come in contact by means of -their surfaces-d1 and d2 with two crown pieces, one of which, D1, vis fixed, while the second, D2, is movable about the axis of rotation of the supporting frame (Fig. 1.)
According to the relation which exists between the respective contactdiameters d1 d2 D1 D2 of the rollers and the crown pieces,
lthe rotation of the frame carrying these rollers causes the crown pieces D2 to rotate inthe saine or in contrary sense.
By varying any one 0f the diameters D1 D2 d1 d2, or several of these at the same time,
the. crown piece D2is given a rotary movement at various speeds according to the case,
. and may be brought to al standstill for certain respective values of said diameters. The annexed drawing shows by way of example several forms of the apparatus.'
v In said drawing:
Figure 1 shows in longitudinal section 4a device constructed in accordance with the invention; 'Figl la frame;
Figs. 2, 3, 4, 5 and 6 show modifications is an end view of the supporting of the apparatus according to the invention;
'contact can be obtained in divers ways,
Fig. 7 shows another modification to@ gether with direct drive.
The variation of the diameter of rolling either by designing the rollers and crown pieces in conical shape with straight or)` curved generatrices, in which case the relative displacement of the parts along the axis causes the modication'of Athe diameters' of rolling contact (Fig. 2), or by increasing or ldiminishing the diameter of the crown pieces by the use of various concentric clamping andunclamping devices after the manner of the chucks employed on machine l tools (Fig. 3), or by the stoppage of one of the crown pieces in a series D1 containing several crown pieces disposed in line (F ig. 4), (in this case the rollers or crowns can be provided with gear teeth), or again, by any other suitable means such as increase or diminution of the diameters of rolling contact by the action of fluids under pressure (Fig. 5).
ln all cases in which the two diameters in contact are invariable, the simple rolling contact can be replaced by gear teeth which will act, to prevent any possible slipping, and this no longer requires the action of centrifugal force in order to maintain the contact (Figa 6). l
The method shown in Fig. 7 is characterized by the use of a speed variation v caused by the longitudinal displacement of the crown piece D2, together with a design which allows of automatically separating the planetary rollers from the crown piece D1, especially in the case where theposition of the crown piece D2 causes its speed to equal the speed of the supporting frame. In this position, a set of tenons mounted on the supporting frame is made to enter corresponding openings in 'the crown piece D2, and the coupling is now made in a direct manner; the action of the rollers is here suppressed, and the driving shaft is connected directly with the operated shaft.
Having now described my invention what I claim as new and desire to secure byv Letters Patent is:
1. A lvariable speed gear comprising a driving shaft and a drivenshaft, planetaryv rollers having two rolling surfaces, a rotary supporting frame for lsaid rollers-v fixed to one of'theshafts and lhaving radial slots in which the shafts of the roller are slidably inountedfa fixed internally ared member ragainst which one of the rolling surfaces of radial slots in which the shafts of the'rollers said members Y receiving a conical shape y whereby the ratio of the diameters of rollare slidably mounted, all lined internally geared member 4,against which. one of the rollingsurfaces of 'Said rollers rolls, 'rotata- 5 ble internally geared member fixedv to. the
other shaft and against which the lother of; the rolling snrfaces'of said rollersvrollsytbe v ing tools for contact can be varied.
In testimony whereof I- have signed my namento this specification. A
FLIX AHOND. `l
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR492277A FR492277A (en) | 1918-10-14 | 1918-10-14 | Variable speed transmission |
DEA32361D DE374112C (en) | 1918-10-14 | 1919-10-07 | Friction gear change transmission |
GB2485519A GB133948A (en) | 1918-10-14 | 1919-10-10 | Improvements in Change Speed Gears |
US331170A US1370080A (en) | 1918-10-14 | 1919-10-16 | Variable-speed gear |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR492277 | 1918-10-14 | ||
US331170A US1370080A (en) | 1918-10-14 | 1919-10-16 | Variable-speed gear |
Publications (1)
Publication Number | Publication Date |
---|---|
US1370080A true US1370080A (en) | 1921-03-01 |
Family
ID=40601189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US331170A Expired - Lifetime US1370080A (en) | 1918-10-14 | 1919-10-16 | Variable-speed gear |
Country Status (4)
Country | Link |
---|---|
US (1) | US1370080A (en) |
DE (1) | DE374112C (en) |
FR (1) | FR492277A (en) |
GB (1) | GB133948A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2478227A (en) * | 1945-09-13 | 1949-08-09 | Robertson Co H H | Torque converter mechanism |
US2501936A (en) * | 1949-03-10 | 1950-03-28 | Brown Brockmeyer Co | Variable-speed drive |
US2555119A (en) * | 1946-01-17 | 1951-05-29 | Harold F Elliott | Planetary variable speed friction transmission |
US2680388A (en) * | 1951-04-30 | 1954-06-08 | Lazarowicz Gustaw | Variable speed power transmission |
US2755078A (en) * | 1952-10-30 | 1956-07-17 | Curtiss Wright Corp | Governor |
US2826935A (en) * | 1953-12-28 | 1958-03-18 | Beier Alice | Automatic variable epicyclic friction drive |
US3020782A (en) * | 1957-01-24 | 1962-02-13 | Sacchi Giulio | Speed change device having resiliently deformable wheels |
US3178967A (en) * | 1961-12-22 | 1965-04-20 | Simmering Graz Pauker Ag | Epicyclic spur gear transmission |
US3293948A (en) * | 1963-12-24 | 1966-12-27 | Rheinstahl Huettenwerke Ag | Planetary transmission arrangement |
US3293947A (en) * | 1964-07-27 | 1966-12-27 | Chery Walter Valdemar | Torque converter and variable drive |
US5145468A (en) * | 1991-01-07 | 1992-09-08 | Compudrive Corporation | Adjustable cycloidal speed reducer |
US5489244A (en) * | 1990-07-25 | 1996-02-06 | Yunzao Li | Centrifugal planetary friction transmission |
US5551929A (en) * | 1993-04-12 | 1996-09-03 | Fritsch; Joseph E. | Differential traction drive transmission |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1003001B (en) * | 1953-05-07 | 1957-02-21 | Demag Ag | Epicyclic gear |
DE1124778B (en) * | 1954-08-21 | 1962-03-01 | Franziska Weber Geb Schuele | Tapered roller friction wheel drive |
NL7711277A (en) * | 1977-10-14 | 1979-04-18 | Patent Concern Nv | TORQUE CONVERTER. |
DE19626403A1 (en) * | 1996-07-01 | 1998-01-08 | Heinzl Joachim | Orbital friction gear |
DE10110644A1 (en) * | 2001-03-06 | 2002-09-19 | Alpha Getriebebau Gmbh | Planetary transmission for high transmission ratio has planetary gears in non-positive contact with counter-running gears |
-
1918
- 1918-10-14 FR FR492277A patent/FR492277A/en not_active Expired
-
1919
- 1919-10-07 DE DEA32361D patent/DE374112C/en not_active Expired
- 1919-10-10 GB GB2485519A patent/GB133948A/en not_active Expired
- 1919-10-16 US US331170A patent/US1370080A/en not_active Expired - Lifetime
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2478227A (en) * | 1945-09-13 | 1949-08-09 | Robertson Co H H | Torque converter mechanism |
US2555119A (en) * | 1946-01-17 | 1951-05-29 | Harold F Elliott | Planetary variable speed friction transmission |
US2501936A (en) * | 1949-03-10 | 1950-03-28 | Brown Brockmeyer Co | Variable-speed drive |
US2680388A (en) * | 1951-04-30 | 1954-06-08 | Lazarowicz Gustaw | Variable speed power transmission |
US2755078A (en) * | 1952-10-30 | 1956-07-17 | Curtiss Wright Corp | Governor |
US2826935A (en) * | 1953-12-28 | 1958-03-18 | Beier Alice | Automatic variable epicyclic friction drive |
US3020782A (en) * | 1957-01-24 | 1962-02-13 | Sacchi Giulio | Speed change device having resiliently deformable wheels |
US3178967A (en) * | 1961-12-22 | 1965-04-20 | Simmering Graz Pauker Ag | Epicyclic spur gear transmission |
US3293948A (en) * | 1963-12-24 | 1966-12-27 | Rheinstahl Huettenwerke Ag | Planetary transmission arrangement |
US3293947A (en) * | 1964-07-27 | 1966-12-27 | Chery Walter Valdemar | Torque converter and variable drive |
US5489244A (en) * | 1990-07-25 | 1996-02-06 | Yunzao Li | Centrifugal planetary friction transmission |
US5145468A (en) * | 1991-01-07 | 1992-09-08 | Compudrive Corporation | Adjustable cycloidal speed reducer |
US5551929A (en) * | 1993-04-12 | 1996-09-03 | Fritsch; Joseph E. | Differential traction drive transmission |
Also Published As
Publication number | Publication date |
---|---|
DE374112C (en) | 1923-04-19 |
GB133948A (en) | 1921-03-03 |
FR492277A (en) | 1919-07-03 |
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