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GB2483257A - Infinite speed transmission with cone gear having spiral gearing - Google Patents

Infinite speed transmission with cone gear having spiral gearing Download PDF

Info

Publication number
GB2483257A
GB2483257A GB1014523.3A GB201014523A GB2483257A GB 2483257 A GB2483257 A GB 2483257A GB 201014523 A GB201014523 A GB 201014523A GB 2483257 A GB2483257 A GB 2483257A
Authority
GB
United Kingdom
Prior art keywords
cone
gear
spiral
cone gear
infinite speed
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.)
Granted
Application number
GB1014523.3A
Other versions
GB2483257B (en
GB201014523D0 (en
Inventor
Eric Albert 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.)
UNIQUE TRANSMISSIONS Ltd
Original Assignee
UNIQUE TRANSMISSIONS Ltd
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 UNIQUE TRANSMISSIONS Ltd filed Critical UNIQUE TRANSMISSIONS Ltd
Priority to GB1014523.3A priority Critical patent/GB2483257B/en
Publication of GB201014523D0 publication Critical patent/GB201014523D0/en
Priority to PCT/GB2011/001346 priority patent/WO2012028860A1/en
Publication of GB2483257A publication Critical patent/GB2483257A/en
Application granted granted Critical
Publication of GB2483257B publication Critical patent/GB2483257B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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

Landscapes

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

Abstract

Infinite speed transmission comprises a cone gear 4 having spiral gearing which mates with a gear 5. The gear 5 is able to slide axially on a splined shaft 3 which is driven via gears 2 by an input shaft 1. Cone gear 4 is connected to an output shaft 6. Sliding the gear 5 along the shaft 3while engaged with the cone gear 4 decreases /increases speed of the cone gear 4 and thereby the speed of the output shaft 6. Splined shaft 3 is parallel to an outside surface of the cone gear 4. The spiral gearing has multiple spiral gear teeth along the outside surface of the cone gear 4 and an angle of the spiral gearing is determined by cone ratio of small diameter to large diameter and also cone length.

Description

INFINITE SPEED TRANSMISSION
The invention relates to a infinite speed transmission. Multiple speed transmissions are well known in road and off road vehicles and industral applications. The two main types of transmission are the layshaft with a synchronizing unit for ratio changing and the automatic using epicyclic gearing and multiplate clutches. Both requiring a high number of parts. The infinite speed transmission shown as a small number of part and only two gears for changing speed.
According to the present invention an input shaft driving a gear in turn driving a cone gear connected to the 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 invension with reference to the accompanying drawing be described.
Refering 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 5 able to slide axialy on splined shaft 3 mating with cone gear 4 attached to the output shaft 6.

Claims (2)

  1. CLAIMS1. An infinite speed transmission having an input shaft rotating a gear able to slide axialy in contact and rotating a cone having spiral gearing connected to a output shaft resulting in infinite speed rotation.
  2. 2. The transmission having a small number of parts and only two gears would reduce manufacturing cost.Amendments to the claims have been filed as followsCLAIMS1. An infinite speed transmission having an input shaft rotating agear 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.SSSt os * * * * 5*5*e 0 e * * 0
GB1014523.3A 2010-09-01 2010-09-01 Infinite speed transmission Expired - Fee Related GB2483257B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1014523.3A GB2483257B (en) 2010-09-01 2010-09-01 Infinite speed transmission
PCT/GB2011/001346 WO2012028860A1 (en) 2010-09-01 2011-09-15 Infinite speed transmission

Applications Claiming Priority (1)

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

Publications (3)

Publication Number Publication Date
GB201014523D0 GB201014523D0 (en) 2010-10-13
GB2483257A true GB2483257A (en) 2012-03-07
GB2483257B GB2483257B (en) 2012-08-29

Family

ID=43013518

Family Applications (1)

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

Country Status (2)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103016650B (en) * 2012-12-19 2015-07-22 武汉理工大学 Noncircular bevel gear stepless speed change device
ES2531176B1 (en) * 2013-09-11 2015-12-22 José Luis FISCAL MÁRQUEZ Speed and force variator system
CN115789190B (en) * 2022-11-21 2023-07-28 中交第三航务工程局有限公司江苏分公司 Mechanical power speed regulating equipment and use method thereof

Citations (8)

* 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
US1484197A (en) * 1921-10-18 1924-02-19 Stefani Carlo Change-speed transmission
GB396768A (en) * 1932-02-06 1933-08-08 Murphy William Improvements relating to change speed gears
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
WO2001044684A1 (en) * 1999-12-17 2001-06-21 Cor Dale E Van Gear train and transmission system utilizing the same
US6802229B1 (en) * 2003-06-02 2004-10-12 Michael Lambert Gear drive having continuously variable drive ratio

Patent Citations (8)

* 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
US1484197A (en) * 1921-10-18 1924-02-19 Stefani Carlo Change-speed transmission
GB396768A (en) * 1932-02-06 1933-08-08 Murphy William Improvements relating to change speed gears
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
WO2001044684A1 (en) * 1999-12-17 2001-06-21 Cor Dale E Van Gear train and transmission system utilizing the same
US6802229B1 (en) * 2003-06-02 2004-10-12 Michael Lambert Gear drive having continuously variable drive ratio

Also Published As

Publication number Publication date
GB2483257B (en) 2012-08-29
WO2012028860A1 (en) 2012-03-08
GB201014523D0 (en) 2010-10-13

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Legal Events

Date Code Title Description
COOA Change in applicant's name or ownership of the application

Owner name: UNIQUE TRANSMISSIONS LTD

Free format text: FORMER OWNER: ERIC ALBERT WHATELEY

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20140901