GB2604536A - A gear transmission device - Google Patents
A gear transmission device Download PDFInfo
- Publication number
- GB2604536A GB2604536A GB2208113.7A GB202208113A GB2604536A GB 2604536 A GB2604536 A GB 2604536A GB 202208113 A GB202208113 A GB 202208113A GB 2604536 A GB2604536 A GB 2604536A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gear
- crankshafts
- transmission device
- central axis
- gear transmission
- 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.)
- Pending
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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
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- 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
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
- F16H2001/323—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear comprising eccentric crankshafts driving or driven by a gearing
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- 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
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
- F16H2001/327—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear with orbital gear sets comprising an internally toothed ring gear
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- Gear Transmission (AREA)
Abstract
A gear transmission device (10) such as a gearbox. The gearbox comprises a mechanism (12) having a central axis (A-A) aligned with a central axis of the device (10). The mechanism (12) comprises a gear system (20) configured to transmit a rotational force from a motor to a plurality of crankshafts (40); the gear system (20) comprises an input gear (22) adapted to be driven by the motor, and one or more gear units (24) operably engage with the input gear (22) for transmitting rotation from the motor to the plurality of crankshafts (40); wherein the plurality of crankshafts (40) comprise a central crankshaft (42) and one or more peripheral crankshafts (44); the central crankshaft (42) being positioned in longitudinal alignment with the central axis (A-A) of the mechanism (12), and the one or more peripheral crankshafts (44) being positioned longitudinally parallel to the central axis (A-A) of the mechanism (12); with the central crankshaft (42) and the peripheral crankshafts (44) being arranged to rotate in a same direction of rotation.
Claims (19)
1. A gear transmission device, comprising: a mechanism having a central axis aligned with a central axis of the device, the mechanism comprising a gear system configured to transmit a rotational force from a rotary power source to a plurality of crankshafts; the gear system comprising an input gear arranged to be driven by the rotary power source, and one or more gear units engaging the input gear for transmitting the rotational force from the rotary power source to the plurality of crankshafts; wherein the plurality of crankshafts comprise a central crankshaft and one or more peripheral crankshafts; the central crankshaft being positioned in longitudinal alignment with the central axis of the mechanism, and the one or more peripheral crankshafts being positioned longitudinally parallel to the central axis of the mechanism; with the central crankshaft and the peripheral crankshafts being arranged to rotate in a same direction of rotation.
2. The gear transmission device according to claim 1, wherein the gear system is configured to transmit the rotational force from the rotary power source to a cycloidal gear system via the plurality of crankshafts, the cycloidal gear system comprises at least one cycloidal gear plate movably connectable with the plurality of crankshafts to allow a cycloidal movement of the at least one cycloidal gear plate in response to rotation of the plurality of crankshafts.
3. The gear transmission device according to claim 2, wherein the central crankshaft is positioned in longitudinal alignment with the central axis of the mechanism for connecting the cycloidal gear system at a substantially central position of the cycloidal gear plate; and the peripheral crankshafts being positioned substantially parallel to the central crankshaft and offsetting from the central axis of the mechanism for connecting the cycloidal gear system at a substantially peripheral position of the cycloidal gear plate.
4. The gear transmission device according to claim 1, wherein the central crankshaft and the one or more peripheral crankshafts are arranged to rotate in the same direction of rotation as the input gear.
5. The gear transmission device according to claim 1, wherein the central crankshaft and the one or more peripheral crankshafts are arranged to rotate in a same speed.
6. The gear transmission device according to claim 1, wherein the one or more gear units of the gear system comprise one or more secondary gears rotatably engaged around the input gear.
7. The gear transmission device according to claim 6, wherein the one or more gear units further comprise one or more tertiary gears, wherein the one or more tertiary gears are operably engageable with the one or more secondary gears.
8. The gear transmission device according to claim 7, wherein the one or more tertiary gears are of no direct contact or engagement with the input gear.
9. The gear transmission device according to claim 7, wherein the one or more tertiary gears comprise a central tertiary gear positioned substantially in axial alignment with the central axis of the mechanism, and at least one peripheral tertiary gear positioned to offset from the central axis of the mechanism.
10. The gear transmission device according to claim 7, wherein the one or more tertiary gears are each connected at a proximal end of a respective one of the plurality of crankshafts.
11. The gear transmission device according to claim 7, wherein the one or more tertiary gears are positioned to offset from the central axis of the mechanism, with the input gear and each of the tertiary gears being connected at a proximal end of a respective one of the plurality of crankshafts.
12. The gear transmission device according to claim 11, wherein the input gear, the secondary gears and the tertiary gears are arranged substantially on a same, transverse plane substantially perpendicular to the central axis of the mechanism.
13. The gear transmission device according to claim 9, wherein each of the secondary gears is operably engageable with at least two tertiary gears comprising one central tertiary gear and at least one peripheral tertiary gear.
14. The gear transmission device according to claim 1 or 2, wherein each of the plurality of crankshafts comprises at least one eccentric component configured to axially offset from a central axis of the respective one of the crankshafts.
15. The gear transmission device according to claim 14, wherein the plurality of crankshafts are arranged to connect the at least one cycloidal gear plate via the at least one eccentric component of each of the respective crankshafts.
16. The gear transmission device according to claim 15, wherein the at least one cycloidal gear plate comprises a plurality of through-holes each of which being arranged to receive the at least one eccentric component of each of the respective crankshafts.
17. The gear transmission device according to claim 2, wherein the cycloidal gear system comprises a housing positioned to surround the at least one cycloidal gear plate, the housing comprises a gear ring having a set of internal circumferential gear teeth for engaging corresponding sets of external circumferential gear teeth of the at least one cycloidal gear plate.
18. The gear transmission device according to claim 17, wherein the ring unit forms part of a housing of the mechanism.
19. The gear transmission device according to claim 14, wherein each of the plurality of crankshafts comprises at least two eccentric components longitudinally spaced apart from one another, the two eccentric components being configured to axially offset from the central axis of the respective one of the crankshafts at a different extent and/or at a different phase from one another.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HK19133627 | 2019-12-13 | ||
| PCT/CN2020/131235 WO2021115119A1 (en) | 2019-12-13 | 2020-11-24 | A gear transmission device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB202208113D0 GB202208113D0 (en) | 2022-07-13 |
| GB2604536A true GB2604536A (en) | 2022-09-07 |
Family
ID=76329490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2208113.7A Pending GB2604536A (en) | 2019-12-13 | 2020-11-24 | A gear transmission device |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB2604536A (en) |
| WO (1) | WO2021115119A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002021947A (en) * | 2000-07-04 | 2002-01-23 | Teijin Seiki Co Ltd | Eccentric rocking type reduction gear |
| CN2802189Y (en) * | 2004-04-23 | 2006-08-02 | 张宽友 | Multi-axle oscillating speed reducing mechanism |
| CN203743322U (en) * | 2014-03-18 | 2014-07-30 | 郑广和 | Involute few tooth difference speed reducer |
| CN104534031A (en) * | 2015-01-05 | 2015-04-22 | 西北工业大学 | Transmission device for robot joint |
| WO2016037271A1 (en) * | 2014-09-10 | 2016-03-17 | Stocco Leo | Hybrid orbitless gearbox |
| CN108488326A (en) * | 2018-04-25 | 2018-09-04 | 深圳市领略数控设备有限公司 | More bent axle cycloidal planetary gear speed reducers |
-
2020
- 2020-11-24 WO PCT/CN2020/131235 patent/WO2021115119A1/en active Application Filing
- 2020-11-24 GB GB2208113.7A patent/GB2604536A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002021947A (en) * | 2000-07-04 | 2002-01-23 | Teijin Seiki Co Ltd | Eccentric rocking type reduction gear |
| CN2802189Y (en) * | 2004-04-23 | 2006-08-02 | 张宽友 | Multi-axle oscillating speed reducing mechanism |
| CN203743322U (en) * | 2014-03-18 | 2014-07-30 | 郑广和 | Involute few tooth difference speed reducer |
| WO2016037271A1 (en) * | 2014-09-10 | 2016-03-17 | Stocco Leo | Hybrid orbitless gearbox |
| CN104534031A (en) * | 2015-01-05 | 2015-04-22 | 西北工业大学 | Transmission device for robot joint |
| CN108488326A (en) * | 2018-04-25 | 2018-09-04 | 深圳市领略数控设备有限公司 | More bent axle cycloidal planetary gear speed reducers |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021115119A1 (en) | 2021-06-17 |
| GB202208113D0 (en) | 2022-07-13 |
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