CN203756874U - Dual-redundancy planetary gear transmission mechanism - Google Patents
Dual-redundancy planetary gear transmission mechanism Download PDFInfo
- Publication number
- CN203756874U CN203756874U CN201420067852.8U CN201420067852U CN203756874U CN 203756874 U CN203756874 U CN 203756874U CN 201420067852 U CN201420067852 U CN 201420067852U CN 203756874 U CN203756874 U CN 203756874U
- Authority
- CN
- China
- Prior art keywords
- gear
- planetary gear
- transmission mechanism
- redundancy
- dual
- 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.)
- Expired - Lifetime
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 34
- 230000005540 biological transmission Effects 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Landscapes
- Structure Of Transmissions (AREA)
Abstract
The utility model discloses a dual-redundancy planetary gear transmission mechanism. The dual-redundancy planetary gear transmission mechanism is characterized in that a redundancy transmission mechanism is added, an external gear meshed with an ordinary gear is arranged on the outer periphery of an internal-external gear, an internal gear meshed with a planetary gear is arranged on the inner periphery of the internal-external gear, and the planetary gear and the ordinary gear share the internal-external gear for transmission. The dual-redundancy planetary gear transmission mechanism has the advantages that one transmission mechanism can operate normally when the other transmission mechanism fails, and fatal loss caused by faults resulted from failure of the transmission mechanism can be avoided.
Description
Technical field
The utility model relates to driving mechanism technical field, particularly a kind of two remaining planetary gear mechanism.
Background technique
Planetary gear mechanism is high with its efficiency, volume is little, precision is high and be widely used in Aero-Space and military field.Due to the particularity in these fields, the reliability of gear drive is had to higher requirement.Therefore two remaining planetary gear mechanism technology are proposed.At present domestic research on two Redundancies is more, but it is also little that this concept is applied to the research of gear drive technology this respect.
Model utility content
Technical problem to be solved in the utility model is that a kind of two remaining planetary gear mechanisms that improve reliability will be provided.
In order to solve above technical problem, the utility model provides a kind of pair of remaining planetary gear mechanism, this driving mechanism has increased redundancy driving mechanism, process the external gear engaging with fixed axis gear at inside and outside top circle, process the internal gear engaging with planet wheel in inner circle, the two shares an interior external gear Planetary Gear Transmission and fixed axis gear transmission.
By modulus and the number of teeth of two kinds of driving mechanism middle gears of appropriate design, can obtain same speed ratio, in the situation that a kind of kind of drive lost efficacy, another kind of driving mechanism normally moves like this, avoid machine system and broke down because driving mechanism lost efficacy, cause great loss.
Superior effect of the present utility model is: by planetary gear mechanism is carried out to Redundancy Design, on the basis of common Planetary Gear Transmission, make full use of original resource and space, on internal gear cylindrical, process external gear, increase a fixed axis gear being engaged with.Like this, not only make in whole driving mechanism structure relatively more compactly, meanwhile, in the situation that a kind of method of operation lost efficacy, the normal operation of the another kind of method of operation can also ensure that machine system normally works, and has improved the reliability of driving mechanism.
Brief description of the drawings
Fig. 1 is the two remaining planetary gear mechanism structural representations of the utility model; Number in the figure is described as follows: 1-external gear; 2-interior external gear; 3-planet wheel; 4-output shaft; 5-internal gear; 6-input shaft B; 7-input shaft A.
Embodiment
Refer to shown in accompanying drawing, the utility model will be further described.
As shown in Figure 1, the utility model provides a kind of pair of remaining planetary gear mechanism, this driving mechanism has increased redundancy driving mechanism, go out at interior external gear 2 Excircle machinings the external gear 1 engaging with fixed axis gear, process the internal gear 5 engaging with planet wheel in inner circle, the two shares an interior external gear 2 Planetary Gear Transmission and fixed axis gear transmission.
The two remaining planetary gear mechanisms of the utility model have following two kinds of methods of operation in the time of operation:
1, band brake electric machine assembly B locking, thus it is motionless that internal gear 5 is locked; Band brake electric machine assembly A drives external gear 1 to rotate by input shaft A7, and external gear 1 engages it is rotated backward with interior external gear 2, and interior external gear 2 makes it lead to rotation with planet wheel 3 by interior engagement, and then planet wheel 3 drives output shaft 4 to rotate.Because internal gear 5 is locked, the rotating speed of planet wheel 3 is exactly the rotating speed of output shaft 4.2, band brake electric machine assembly A locking, locks external gear 1 motionless, and the interior external gear 2 being meshed with it is also locked motionless; Band brake electric machine assembly B drives internal gear 5 to rotate by input shaft B6, and internal gear 5 engages with 3 planet wheels it is rotated, and then 3 planet wheels drive 4 output shaft rotations.By the number of teeth of two kinds of driving mechanism middle gears of appropriate design, can obtain same speed ratio, in the situation that a kind of kind of drive lost efficacy, another kind of driving mechanism normally moves like this, avoid machine system and broke down because driving mechanism lost efficacy, cause great loss.
Claims (1)
1. a two remaining planetary gear mechanism, it is characterized in that: this driving mechanism has increased redundancy driving mechanism, process the external gear engaging with fixed axis gear at inside and outside top circle, process the internal gear engaging with planet wheel in inner circle, the two shares an interior external gear Planetary Gear Transmission and fixed axis gear transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420067852.8U CN203756874U (en) | 2014-02-17 | 2014-02-17 | Dual-redundancy planetary gear transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420067852.8U CN203756874U (en) | 2014-02-17 | 2014-02-17 | Dual-redundancy planetary gear transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756874U true CN203756874U (en) | 2014-08-06 |
Family
ID=51252154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420067852.8U Expired - Lifetime CN203756874U (en) | 2014-02-17 | 2014-02-17 | Dual-redundancy planetary gear transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203756874U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104539097A (en) * | 2014-12-26 | 2015-04-22 | 中国原子能科学研究院 | Sealed dual-redundancy roller way drive devices |
| CN105656244A (en) * | 2014-11-14 | 2016-06-08 | 中国航空工业第六八研究所 | Dual-redundancy electro-mechanical actuator |
| CN111043247A (en) * | 2019-11-29 | 2020-04-21 | 宁波夏厦齿轮有限公司 | Speed reducer gear assembly for new energy vehicle |
-
2014
- 2014-02-17 CN CN201420067852.8U patent/CN203756874U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105656244A (en) * | 2014-11-14 | 2016-06-08 | 中国航空工业第六八研究所 | Dual-redundancy electro-mechanical actuator |
| CN104539097A (en) * | 2014-12-26 | 2015-04-22 | 中国原子能科学研究院 | Sealed dual-redundancy roller way drive devices |
| CN111043247A (en) * | 2019-11-29 | 2020-04-21 | 宁波夏厦齿轮有限公司 | Speed reducer gear assembly for new energy vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103742609A (en) | Planetary reducer | |
| CN203756874U (en) | Dual-redundancy planetary gear transmission mechanism | |
| CN104214292A (en) | Movement converting device | |
| CN103742610A (en) | 2K-V speed reducer | |
| CN206320246U (en) | A kind of planet circular system structure with general ring gear | |
| CN104578565A (en) | Combined harmonic wave speed reduction and motor integrated machine | |
| CN104389955B (en) | Single many worm gear end face mesh gears of worm screw | |
| CN205248975U (en) | With axle center biax two -speed motor | |
| CN104633062A (en) | Double-cycloidal speed reducer | |
| CN102261432B (en) | Planet gear speed reducing mechanism and motor | |
| CN202726933U (en) | Wrist transmission structure of manipulator | |
| CN204425109U (en) | A kind of combination harmonic reducing motor all-in-one | |
| KR101164644B1 (en) | A Reduction Gear of Cycloid | |
| CN202302209U (en) | Improved structure of medium-and-small torque multi-rotary-valve electric device transmission pair | |
| CN103307216A (en) | Planetary speed difference reducer | |
| CN203604590U (en) | Single-motor-driven double-stroke structure | |
| CN203189626U (en) | Corner speed reducer | |
| CN205136487U (en) | Reduction gear for robot | |
| CN104653755A (en) | Single-motor driving double-stroke structure and method thereof | |
| CN105626781A (en) | Redundant transmission mechanism | |
| CN203754368U (en) | Transmission device for directed output and redirected output | |
| CN203071732U (en) | Speed reducing motor | |
| CN203130996U (en) | Planetary gear system | |
| CN203781710U (en) | Chain hoist | |
| CN103758934A (en) | Small-size ultrahigh-gear-ratio multidirectional-control self-locked reducer with fixing pins |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |