GB2596710A - Rotary actuator - Google Patents
Rotary actuator Download PDFInfo
- Publication number
- GB2596710A GB2596710A GB2114243.5A GB202114243A GB2596710A GB 2596710 A GB2596710 A GB 2596710A GB 202114243 A GB202114243 A GB 202114243A GB 2596710 A GB2596710 A GB 2596710A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gear
- annular
- rotary actuator
- gears
- housing
- 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.)
- Withdrawn
Links
- 238000005096 rolling process Methods 0.000 claims 1
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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/36—Toothed gearings for conveying rotary motion with gears having orbital motion with two central gears coupled by intermeshing orbital gears
-
- 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
- F16H1/46—Systems consisting of a plurality of gear trains each with orbital gears, i.e. systems having three or more central gears
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
A rotary actuator comprising: a housing and a first gear arrangement (62) comprising: a first annular gear (7) having a first axis (16) about which it is rotatable in a reaction member (6); a pair of second annular gears (8), each being fixed relative to the reaction member (6); a set of planet gears (9) which each engage the first annular gear (7) and the second annular gears (8); and a sun gear (18) rotatable about the axis (16), and which engages each of the planet gears; an input (3), coupled to the sun gear (18) of the first gear arrangement (62); and an output (4), coupled to the first annular gear(7). This is useful where it is desirable to provide an electrically driven mechanical actuator within a relatively compact space. There are a large variety of applications for such an actuator including the replacement of hydraulic operated devices.
Claims (11)
1. A rotary actuator comprising: â ¢ a housing; and â ¢ a first gear arrangement comprising: o a first annular gear having a first axis about which it is rotatable in a reaction member; o a pair of second annular gears, each being fixed relative to the reaction member; o a set of planet gears which each engage the first annular gear and the second annular gears; and o a sun gear rotatable about the axis, and which engages each of the planet gears; â ¢ an input, coupled to the sun gear of the first gear arrangement; and â ¢ an output, coupled to the first annular gear.
2. The rotary actuator of claim 1 , in which the planet wheels are supported in the housing by at least one rolling ring.
3. The rotary actuator of claim 1 or claim 2, in which the set of planet gears of the first gear arrangement lack a planet carrier.
4. The rotary actuator of any preceding claim, further comprising a second gear arrangement comprising an epicyclic gear comprising a sun gear coupled to the input, an annular gear fixed relative to the reaction member and a plurality of planet gears, the planet gears being carried on a planet carrier coupled to the sun gear of the first gear arrangement.
5. The rotary actuator of any preceding claim, in which the pair of second annular gears is symmetrical about a plane perpendicular to the axis.
6. The rotary actuator of claim 5, in which and the first annular gear is also symmetrical about the plane.
7. The rotary actuator of any preceding claim, in which the pair of annular gears have internal teeth; the teeth of one of the pair of annular second gears being aligned circumferentially about the axis with the teeth of the other of the pair of second annular gears.
8. The rotary actuator of any preceding claim, in which the input comprises an input for a motor, such an electric motor.
9. The rotary actuator of any preceding claim, in which the output comprises a moving part which moves relative to the housing, in which the housing is typically fixed relative to the reaction member.
10. The rotary actuator of claim 9, in which the housing comprises a flange and the moving part comprises a flange, with the flange of the output being drive for movement relative to the flange of the housing by rotation of the input.
11. The rotary actuator of any preceding claim, comprising a motor coupled to the input.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB1904972.5A GB201904972D0 (en) | 2019-04-08 | 2019-04-08 | Rotary actuator |
| PCT/IB2020/053339 WO2020208537A1 (en) | 2019-04-08 | 2020-04-08 | Rotary actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB202114243D0 GB202114243D0 (en) | 2021-11-17 |
| GB2596710A true GB2596710A (en) | 2022-01-05 |
Family
ID=66809494
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB1904972.5A Ceased GB201904972D0 (en) | 2019-04-08 | 2019-04-08 | Rotary actuator |
| GB2114243.5A Withdrawn GB2596710A (en) | 2019-04-08 | 2020-04-08 | Rotary actuator |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB1904972.5A Ceased GB201904972D0 (en) | 2019-04-08 | 2019-04-08 | Rotary actuator |
Country Status (2)
| Country | Link |
|---|---|
| GB (2) | GB201904972D0 (en) |
| WO (1) | WO2020208537A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4932613A (en) * | 1988-06-24 | 1990-06-12 | Curtiss-Wright Flight Systems, Inc. | Rotary hinge actuator |
| US5518466A (en) * | 1994-11-29 | 1996-05-21 | Curtiss Wright Flight Systems Inc. | Jam-tolerant rotary actuator |
| EP0826902A2 (en) * | 1996-08-30 | 1998-03-04 | Curtiss-Wright Flight Systems, Inc. | Jam tolerant rotary actuator |
| EP3144220A1 (en) * | 2012-08-22 | 2017-03-22 | Moog Wolverhampton Limited | Aircraft control surface actuator |
-
2019
- 2019-04-08 GB GBGB1904972.5A patent/GB201904972D0/en not_active Ceased
-
2020
- 2020-04-08 GB GB2114243.5A patent/GB2596710A/en not_active Withdrawn
- 2020-04-08 WO PCT/IB2020/053339 patent/WO2020208537A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4932613A (en) * | 1988-06-24 | 1990-06-12 | Curtiss-Wright Flight Systems, Inc. | Rotary hinge actuator |
| US5518466A (en) * | 1994-11-29 | 1996-05-21 | Curtiss Wright Flight Systems Inc. | Jam-tolerant rotary actuator |
| EP0826902A2 (en) * | 1996-08-30 | 1998-03-04 | Curtiss-Wright Flight Systems, Inc. | Jam tolerant rotary actuator |
| EP3144220A1 (en) * | 2012-08-22 | 2017-03-22 | Moog Wolverhampton Limited | Aircraft control surface actuator |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020208537A1 (en) | 2020-10-15 |
| GB202114243D0 (en) | 2021-11-17 |
| GB201904972D0 (en) | 2019-05-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |