CN201475259U - Differential type speed regulating mechanism - Google Patents
Differential type speed regulating mechanism Download PDFInfo
- Publication number
- CN201475259U CN201475259U CN2009201673643U CN200920167364U CN201475259U CN 201475259 U CN201475259 U CN 201475259U CN 2009201673643 U CN2009201673643 U CN 2009201673643U CN 200920167364 U CN200920167364 U CN 200920167364U CN 201475259 U CN201475259 U CN 201475259U
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- CN
- China
- Prior art keywords
- gear
- pinion
- pinion gear
- regulating mechanism
- central
- 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 - Fee Related
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Abstract
The utility model relates to a differential type speed regulating mechanism which comprises a sun gear 4, planetary gears 2, a planetary gear carrier 3 and an annular gear 1, wherein one end of the sun gear 4 is connected with a starter through a spline, a gear is arranged at the other end of the sun gear 4 and meshed with the three planetary gears 2, the planetary gear carrier 3 is connected with three planetary gear shafts 5 so that the three planetary gears 2 are evenly distributed outside the sun gear 4, and a gear arranged on the outer side of the planetary gear carrier 3 is meshed with a main transmission shaft in the system; and the outer sides of the three planetary gears 2 are meshed with the annular gear 1 connected with an electric generator. The utility model can achieve the purpose of ensuring the constant rotational speed of the electric generator during the whole start-up process of the aircraft transmission system to provide power for all the control systems.
Description
Technical field
The utility model relates to a kind of speed regulating mechanism, especially a kind of differential type speed regulating mechanism.
Background technique
In the engine accessory power rating transmission system of aircraft, need a kind of constant speed drive device, guarantee that generator speed is a constant rotational speed.Meanwhile, this mechanism also will guarantee in system start-up to course of normal operation, and the invariablenes turning speed of generator is to guarantee in start-up course being that aircraft is respectively controlled the part power supply.In the middle of traditional design, generally can adopt two cover systems, a cover is in the middle of start-up course, drives generator by starter motor and carries out work; After system start-up, starter motor quits work, and drives generator by the system after starting and carries out work.This structure is not only complicated, and is difficult to guarantee make in transfer process generator speed constant, therefore, needs a kind of while simple in structure can effectively guarantee the mechanism that generator speed is constant, to guarantee the proper functioning of system.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, can guarantee generator in system starting process to the normal operation situation invariablenes turning speed, the speed regulating mechanism of proper functioning.The technical solution of the utility model is, mechanism comprises central gear, pinion gear, pinion gear frame and ring gear, central gear one end links to each other with starter motor by spline, the other end be a gear and with the engagement of three pinion gears, the pinion gear frame links to each other with three pinion gear axles and makes three pinion gears be distributed on the outside of central gear, and the outside of pinion gear frame is gear and is meshed with intrasystem main drive shaft; The outside of described three pinion gears and ring gear engagement, described ring gear links to each other with generator, described central gear and pinion gear axle are hollow structure and have oil guide slot on outer walls, also have oil guide slot on the described pinion gear frame and communicate, also have the oil guide slot that communicates with the pinion gear roller on the described pinion gear axle with central gear and pinion gear axle.
When system start-up, starter motor drives central gear and rotates, and central gear drives the pinion gear frame and rotates, thereby drives electric power generation; Behind electric power generation, each control system in the aircraft is powered, system starts gradually, at this moment, intrasystem main drive shaft rotates, and its sense of rotation is identical with the sense of rotation of central gear, increase along with rotating speed, system adjusts the rotating speed of central gear automatically, and the rotating speed of central gear is reduced, and ring gear keeps invariablenes turning speed under the acting in conjunction of central gear and pinion gear; Diameter according to the working speed of main drive shaft design wandering star frame gear guarantees after system starts fully, under the main drive shaft rated speed, and the speed drop of central gear most zero, starter motor cuts out, and generator is under the effect of main drive shaft, and it is constant that rotating speed keeps; Simultaneously, central gear, pinion gear axle are hollow structure and altogether have oil guide slot on the oil guide slot on the outer wall and the described wandering star frame, at the inner lubricating oil that injects of central gear, in system's running, along with the rotation of wandering star frame, lubricating oil gets rid of into pinion gear axle inner chamber because of centrifugal action, enter the roller raceway of pinion gear again by the oil guide slot of pinion gear axle, realize selflubricating.
The utlity model has tangible advantage, adopt the wandering star driving mechanism, can be in system starting process, carry out the transition to by pinion gear frame transferring power from central gear input power, guaranteed the invariablenes turning speed of ring gear, thereby made the invariablenes turning speed of generator, guarantee generator with system starting process under the situation of proper functioning, generator can both proper functioning, for each control system in the aircraft provides the energy; One side of central gear is connected with starter motor by spline, in the time of opposite side and pinion gear engagement, can also play the effect of installing of supporting, in addition, there is not other strong point, this unsteady support can improve all carrying property of central gear and realize self-alignment, the life-span of having improved gear; Adopt centrifugal selflubricating mode, simple in structure, lubrication effect is obvious.
Description of drawings
Fig. 1 is a sectional view of the present utility model;
Fig. 2 is the side projection sketch of Fig. 1.
Embodiment
As shown in the figure, the differential type regulating mechanism comprises central gear 4, pinion gear 2, pinion gear frame 3 and ring gear 1, central gear 4 one ends link to each other with starter motor by spline, the other end be a gear and with three pinion gears 2 engagement, pinion gear frame 3 links to each other with three pinion gear axles 5 and makes three pinion gears 2 be distributed on the outside of central gear 4, and the outside of pinion gear frame 3 is gear and is meshed with intrasystem main drive shaft; The outside of described three pinion gears 2 and ring gear 1 engagement, described ring gear links to each other with generator.Described central gear 4 is hollow structure with pinion gear axle 5 and has oil guide slot on outer wall, also have oil guide slot on the described pinion gear frame 3 and communicate, also have the oil guide slot that communicates with pinion gear roller 6 on the described pinion gear axle 5 with central gear 4 and pinion gear axle 5.
Claims (2)
1. differential type speed regulating mechanism, it is characterized in that, mechanism comprises central gear (4), pinion gear (2), pinion gear frame (3) and ring gear (1), central gear (4) one ends link to each other with starter motor by spline, the other end is a gear and meshes with three pinion gears (2), pinion gear frame (3) links to each other with three pinion gear axles (5) and makes three pinion gears (2) be distributed on the outside of central gear (4), and the outside of pinion gear frame (3) is gear and is meshed with intrasystem main drive shaft; The outside of described three pinion gears (2) and ring gear (1) engagement, described ring gear links to each other with generator.
2. differential type speed regulating mechanism as claimed in claim 1, it is characterized in that, described central gear (4) is hollow structure with pinion gear axle (5) and has oil guide slot on outer wall, also have oil guide slot on the described pinion gear frame (3) and communicate, also have the oil guide slot that communicates with pinion gear roller (6) on the described pinion gear axle (5) with central gear (4) and pinion gear axle (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201673643U CN201475259U (en) | 2009-07-29 | 2009-07-29 | Differential type speed regulating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201673643U CN201475259U (en) | 2009-07-29 | 2009-07-29 | Differential type speed regulating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201475259U true CN201475259U (en) | 2010-05-19 |
Family
ID=42411506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201673643U Expired - Fee Related CN201475259U (en) | 2009-07-29 | 2009-07-29 | Differential type speed regulating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201475259U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178317A (en) * | 2015-10-21 | 2015-12-23 | 陈伟 | Few-teeth-difference internal-meshing four-shunt pile machine reducer with oil temperature alarm function |
| CN106286765A (en) * | 2016-08-03 | 2017-01-04 | 上海汇众汽车制造有限公司 | The hollow mechanism of driving gear |
-
2009
- 2009-07-29 CN CN2009201673643U patent/CN201475259U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178317A (en) * | 2015-10-21 | 2015-12-23 | 陈伟 | Few-teeth-difference internal-meshing four-shunt pile machine reducer with oil temperature alarm function |
| CN105178317B (en) * | 2015-10-21 | 2017-03-22 | 陈伟 | Few-teeth-difference internal-meshing four-shunt pile machine reducer with oil temperature alarm function |
| CN106286765A (en) * | 2016-08-03 | 2017-01-04 | 上海汇众汽车制造有限公司 | The hollow mechanism of driving gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20170729 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |