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WO2012028860A1 - Infinite speed transmission - Google Patents

Infinite speed transmission Download PDF

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Publication number
WO2012028860A1
WO2012028860A1 PCT/GB2011/001346 GB2011001346W WO2012028860A1 WO 2012028860 A1 WO2012028860 A1 WO 2012028860A1 GB 2011001346 W GB2011001346 W GB 2011001346W WO 2012028860 A1 WO2012028860 A1 WO 2012028860A1
Authority
WO
WIPO (PCT)
Prior art keywords
cone
gear
speed transmission
infinite speed
shaft
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.)
Ceased
Application number
PCT/GB2011/001346
Other languages
French (fr)
Inventor
Eric A. Whateley
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2012028860A1 publication Critical patent/WO2012028860A1/en
Anticipated expiration legal-status Critical
Ceased 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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/42—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion with gears having teeth formed or arranged for obtaining multiple gear ratios, e.g. nearly infinitely variable
    • F16H3/423—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion with gears having teeth formed or arranged for obtaining multiple gear ratios, e.g. nearly infinitely variable the teeth being arranged on a surface of generally conical shape
    • 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
    • F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
    • F16H15/04—Gearings providing a continuous range of gear ratios
    • F16H15/06—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B
    • F16H15/16—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a conical friction surface
    • F16H15/18—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a conical friction surface externally
    • F16H15/20—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a conical friction surface externally co-operating with the outer rim of the member A, which is perpendicular or nearly perpendicular to the friction surface of the member B
    • 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
    • F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
    • F16H15/04—Gearings providing a continuous range of gear ratios
    • F16H15/06—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B
    • F16H15/16—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a conical friction surface
    • F16H15/18—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a conical friction surface externally
    • F16H15/22—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a conical friction surface externally the axes of the members being parallel or approximately parallel

Definitions

  • the invention relates to an infinite speed transmission.
  • Multiple speed transmissions are well known in on road and off road vehicles and industrial applications.
  • the two main types of transmission are the lay shaft with a synchronizing unit for ratio changing and the automatic using epicyclic gearing and mu!tipiate clutches. Both require a high number of parts.
  • the infinite speed transmission shown has a small number of parts and only two gears for changing speed.
  • an infinite speed transmission as defined in the claim.
  • the invention includes an input shaft driving a gear in turn driving a cone gear connected to an output shaft.
  • the cone having multiple spiral gear teeth along its outer surface.
  • the angle of the spiral gearing is determined by the cone ratio of small diameter to the large diameter and also the cone length. Reducing the cone length will increase the teeth contact angle. Increasing the cone length reduces the teeth contact angle.
  • the transmission has an input shaft 1 driving one or more gears 2 attached to a splined shaft 3 rotating parallel to the outside of the cone gear 4 a gear S able to slide axially on splined shaft 3 mating with cone gear 4 attached to the output shaft 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)

Abstract

A prime mover driving an input shaft in turn driving a splined shaft rotating parallel to the outside of a cone gear. The splined shaft has a gear able to slide axially in engagement with the cone attached to the output shaft, increasing or decreasing its speed without any interruption of power.

Description

INFINITE SPEED TRANSMISSION
The invention relates to an infinite speed transmission. Multiple speed transmissions are well known in on road and off road vehicles and industrial applications. The two main types of transmission are the lay shaft with a synchronizing unit for ratio changing and the automatic using epicyclic gearing and mu!tipiate clutches. Both require a high number of parts. The infinite speed transmission shown has a small number of parts and only two gears for changing speed.
According to the present invention there is provided an infinite speed transmission as defined in the claim. The invention includes an input shaft driving a gear in turn driving a cone gear connected to an output shaft. The cone having multiple spiral gear teeth along its outer surface. The angle of the spiral gearing is determined by the cone ratio of small diameter to the large diameter and also the cone length. Reducing the cone length will increase the teeth contact angle. Increasing the cone length reduces the teeth contact angle.
A specific embodiment of the invention with reference to the accompanying drawing is described.
Referring to Fig 1 the transmission has an input shaft 1 driving one or more gears 2 attached to a splined shaft 3 rotating parallel to the outside of the cone gear 4 a gear S able to slide axially on splined shaft 3 mating with cone gear 4 attached to the output shaft 6.

Claims

1. An infinite speed transmission having an input shaft rotating a gear able to slide axially in contact with and rotating a cone connected to an output shaft: the cone has, along its outer surface, multiple spiral gear teeth which engage with teeth on the gear wherein an angle of the spiral gear teeth is determined by a cone ratio of one diameter to a second diameter and a length of the cone.
PCT/GB2011/001346 2010-09-01 2011-09-15 Infinite speed transmission Ceased WO2012028860A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB10145233 2010-09-01
GB1014523.3A GB2483257B (en) 2010-09-01 2010-09-01 Infinite speed transmission

Publications (1)

Publication Number Publication Date
WO2012028860A1 true WO2012028860A1 (en) 2012-03-08

Family

ID=43013518

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2011/001346 Ceased WO2012028860A1 (en) 2010-09-01 2011-09-15 Infinite speed transmission

Country Status (2)

Country Link
GB (1) GB2483257B (en)
WO (1) WO2012028860A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103016650A (en) * 2012-12-19 2013-04-03 武汉理工大学 Noncircular bevel gear stepless speed change device
ES2531176A1 (en) * 2013-09-11 2015-03-11 Marquez José Luis Fiscal Variable speed and force system (Machine-translation by Google Translate, not legally binding)
CN115533150A (en) * 2022-09-19 2022-12-30 扬州云乾机电科技有限公司 High-precision adjustable bench drilling machine
CN115789190A (en) * 2022-11-21 2023-03-14 中交第三航务工程局有限公司江苏分公司 A kind of mechanical power speed regulating device and using method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB396768A (en) * 1932-02-06 1933-08-08 Murphy William Improvements relating to change speed gears
WO2001044684A1 (en) * 1999-12-17 2001-06-21 Cor Dale E Van Gear train and transmission system utilizing the same
EP1629220A1 (en) * 2003-06-02 2006-03-01 Michael Lambert Gear drive having continuously variable drive

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190616792A (en) * 1906-07-25 1907-05-09 John Nelson A Variable Speed and Reversing Driving Gear
GB201080A (en) * 1921-10-18 1923-07-26 Carlo Stefani An improved change speed gear
US2697365A (en) * 1950-06-16 1954-12-21 Earl C Williams Power transmission equipment
US2711105A (en) * 1951-06-02 1955-06-21 Williams Earl Charles Power transmission
US3442157A (en) * 1967-12-11 1969-05-06 Harry E Novinger Infinitely variable speed gear transmission

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB396768A (en) * 1932-02-06 1933-08-08 Murphy William Improvements relating to change speed gears
WO2001044684A1 (en) * 1999-12-17 2001-06-21 Cor Dale E Van Gear train and transmission system utilizing the same
EP1629220A1 (en) * 2003-06-02 2006-03-01 Michael Lambert Gear drive having continuously variable drive

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DANIEL H: "IST EIN STUFENLOSES ECHT FORMSCHLUESSIGES GETRIEBE MOEGLICH?", ANTRIEBSTECHNIK, VEREINIGTE FACHVERLAGE, MAINZ, DE, vol. 23, no. 5, 1 January 1984 (1984-01-01), pages 49/50, XP001160734, ISSN: 0722-8546 *
JAHR A: "ES IST KEIN FORMSCHLUESSIGES STUFENLOSES GETRIEBE MOEGLICH", ANTRIEBSTECHNIK, VEREINIGTE FACHVERLAGE, MAINZ, DE, vol. 28, no. 1, 1 January 1989 (1989-01-01), pages 45/46, XP001160727, ISSN: 0722-8546 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103016650A (en) * 2012-12-19 2013-04-03 武汉理工大学 Noncircular bevel gear stepless speed change device
CN103016650B (en) * 2012-12-19 2015-07-22 武汉理工大学 Noncircular bevel gear stepless speed change device
ES2531176A1 (en) * 2013-09-11 2015-03-11 Marquez José Luis Fiscal Variable speed and force system (Machine-translation by Google Translate, not legally binding)
CN115533150A (en) * 2022-09-19 2022-12-30 扬州云乾机电科技有限公司 High-precision adjustable bench drilling machine
CN115789190A (en) * 2022-11-21 2023-03-14 中交第三航务工程局有限公司江苏分公司 A kind of mechanical power speed regulating device and using method thereof

Also Published As

Publication number Publication date
GB2483257B (en) 2012-08-29
GB2483257A (en) 2012-03-07
GB201014523D0 (en) 2010-10-13

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