WO2015189589A3 - Worm gear assembly - Google Patents

Worm gear assembly Download PDF

Info

Publication number
WO2015189589A3
WO2015189589A3 PCT/GB2015/051676 GB2015051676W WO2015189589A3 WO 2015189589 A3 WO2015189589 A3 WO 2015189589A3 GB 2015051676 W GB2015051676 W GB 2015051676W WO 2015189589 A3 WO2015189589 A3 WO 2015189589A3
Authority
WO
WIPO (PCT)
Prior art keywords
worm
gear assembly
worm gear
shaft
separation
Prior art date
Application number
PCT/GB2015/051676
Other languages
French (fr)
Other versions
WO2015189589A2 (en
Inventor
Jonathan Wheals
Lou GRICE
Mussa Mahomed
Original Assignee
Nylacast 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 Nylacast Ltd filed Critical Nylacast Ltd
Publication of WO2015189589A2 publication Critical patent/WO2015189589A2/en
Publication of WO2015189589A3 publication Critical patent/WO2015189589A3/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
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/048—Type of gearings to be lubricated, cooled or heated
    • F16H57/0498—Worm gearings
    • 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
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/22—Toothed members; Worms for transmissions with crossing shafts, especially worms, worm-gears
    • F16H55/24—Special devices for taking up backlash
    • 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
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/042—Guidance of lubricant
    • F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
    • F16H57/0423—Lubricant guiding means mounted or supported on the casing, e.g. shields or baffles for collecting lubricant, tubes or pipes
    • 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
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F16H2057/0213—Support of worm gear shafts
    • 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
    • F16H57/00—General details of gearing
    • F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere
    • F16H2057/126—Self-adjusting during operation, e.g. by a spring
    • F16H2057/127—Self-adjusting during operation, e.g. by a spring using springs

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear Transmission (AREA)
  • Gears, Cams (AREA)
  • Power Steering Mechanism (AREA)

Abstract

According to the present invention there is provided a split double enveloping (worm (2) for a worm gear assembly (10) comprising a rotatable shaft (18), a first worm (portion (20) fixed to the shaft (18), and a second worm portion (24) moveably coupled to the shaft (8). The first and second worm portions (20, 24) are arranged to mesh with a worm wheel (16). The worm (12) further comprises a biasing element arranged to bias the second worm portion (24) towards the first worm portion (20). A separation limiter is arranged to prevent axial separation of the second worm portion (24) with respect to the first worm portion (20).
PCT/GB2015/051676 2014-06-09 2015-06-09 Worm gear assembly WO2015189589A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1410176.0A GB201410176D0 (en) 2014-06-09 2014-06-09 Worm gear assembly
GB1410176.0 2014-06-09

Publications (2)

Publication Number Publication Date
WO2015189589A2 WO2015189589A2 (en) 2015-12-17
WO2015189589A3 true WO2015189589A3 (en) 2016-03-10

Family

ID=51266886

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2015/051676 WO2015189589A2 (en) 2014-06-09 2015-06-09 Worm gear assembly

Country Status (2)

Country Link
GB (1) GB201410176D0 (en)
WO (1) WO2015189589A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113958695B (en) * 2021-09-08 2024-03-15 淮南联合大学 Worm-driven rotary drilling rig driving box

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1940110A (en) * 1930-02-18 1933-12-19 Electrical Reserarch Products Lubricating system for worm and worm wheel drive
US1953068A (en) * 1932-10-20 1934-04-03 George A Barker Differential lubricating device
DE1675556A1 (en) * 1968-02-22 1970-12-23 Breitenbuecher Friedrich Self-locking worm gear
JPS49114376U (en) * 1973-01-31 1974-09-30
DE3344133A1 (en) * 1983-12-07 1985-06-20 Zahnradfertigung Ott GmbH u.Co KG, 7454 Bodelshausen Apparatus for a split worm
JPH1129057A (en) * 1997-07-08 1999-02-02 Koyo Seiko Co Ltd Motor-driven power steering system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1940110A (en) * 1930-02-18 1933-12-19 Electrical Reserarch Products Lubricating system for worm and worm wheel drive
US1953068A (en) * 1932-10-20 1934-04-03 George A Barker Differential lubricating device
DE1675556A1 (en) * 1968-02-22 1970-12-23 Breitenbuecher Friedrich Self-locking worm gear
JPS49114376U (en) * 1973-01-31 1974-09-30
DE3344133A1 (en) * 1983-12-07 1985-06-20 Zahnradfertigung Ott GmbH u.Co KG, 7454 Bodelshausen Apparatus for a split worm
JPH1129057A (en) * 1997-07-08 1999-02-02 Koyo Seiko Co Ltd Motor-driven power steering system

Also Published As

Publication number Publication date
GB201410176D0 (en) 2014-07-23
WO2015189589A2 (en) 2015-12-17

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