CN205841684U - Anti-start/stop impact causes the planetary gear transmission mechanism that gear-box destroys - Google Patents
Anti-start/stop impact causes the planetary gear transmission mechanism that gear-box destroys Download PDFInfo
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- CN205841684U CN205841684U CN201620683659.6U CN201620683659U CN205841684U CN 205841684 U CN205841684 U CN 205841684U CN 201620683659 U CN201620683659 U CN 201620683659U CN 205841684 U CN205841684 U CN 205841684U
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- ring gear
- gear
- planetary gear
- shock loading
- transmission mechanism
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Abstract
This utility model provides the planetary gear transmission mechanism that a kind of anti-start/stop impact causes gear-box to destroy, cabinet wall there is ring gear with threaded, the two ends of ring gear respectively limit its axial location by a disc spring, and ring gear, planetary gear and sun gear engage successively；The helical angle of the screw thread between ring gear and cabinet wall is more than Self-locking angle.Consequently, it is possible to when shock loading is delivered on ring gear, ring gear can rotate along described screw thread, this shock loading is buffered by disc spring, and after this shock loading disappears or weakens, ring gear can return to equilbrium position again under the drive of the back stretch of disc spring and planetary gear.Use the structure that this utility model provides, ring gear is non-rigid fixing, has certain buffering capacity, can reduce the harm of shock loading, wheel beam strength of tooth safety coefficient and touch-safe coefficient all improve, and are especially apparent for frequently carrying out the operating mode effect of back rotation.
Description
Technical field
This utility model relates to a kind of gear box structure, the NGW planetary gear used particularly to a kind of wind-power electricity generation
Drive mechanism.
Background technology
At present, the gear-box of known wind power generating set generally uses one-level or two grades of NGW Planetary Gear Transmissions, its
In, ring gear rigidly fixes, and sun gear and planet carrier are as driving member.During owing to starting and braking, temporary impact load is relatively big,
Load is transmitted immediately between the gear teeth, easily causes the gear teeth and interrupts.
Summary of the invention
For achieving the above object, the technical solution adopted in the utility model is:
The planetary gear transmission mechanism that a kind of anti-start/stop impact causes gear-box to destroy, it is characterised in that: at cabinet wall
On have ring gear with threaded, the two ends of ring gear respectively limit its axial location by a disc spring, ring gear, planetary gear and
Sun gear engages successively；
The helical angle of the screw thread between ring gear and cabinet wall is more than Self-locking angle.
The planetary gear transmission mechanism that described anti-start/stop impact causes gear-box to destroy, wherein: casing is fixed, sun gear
Connecting power shaft, planetary gear connects output shaft by planet carrier.
When shock loading is delivered on ring gear, ring gear can rotate along described screw thread, delays by disc spring
Rush this shock loading, and after this shock loading disappears or weakens, ring gear again can be at the back stretch of disc spring and planet
Under the drive of wheel, return to equilbrium position.
Using the structure that this utility model provides, ring gear is non-rigid fixing, has certain buffering capacity, can reduce impact
The harm of load, wheel beam strength of tooth safety coefficient and touch-safe coefficient all improve, for frequently turning round
Dynamic operating mode effect is especially apparent.
Accompanying drawing explanation
Fig. 1 is the overall sectional view of the NGW planetary gear transmission mechanism that this utility model provides；
Fig. 2 is the close-up schematic view of Fig. 1.
Detailed description of the invention
As shown in Figure 1 and Figure 2, being a kind of NGW planetary gear transmission mechanism used on wind-power electricity generation, casing 4 is fixed,
Having ring gear 3 with threaded on casing 4 inwall, the two ends of ring gear 3 respectively limit its axial location by a disc spring 1,5,
Ring gear 3, planetary gear 2 and sun gear 6 engage successively, and sun gear 6 connects power shaft, and planetary gear 2 connects defeated by planet carrier 7
Shaft, thus constitute described NGW planetary gear transmission mechanism.
In the present embodiment, in order to prevent the screw thread generation self-locking between ring gear 3 and casing 4 inwall, ring gear 3 and casing
The helical angle of the screw thread between 4 inwalls should be at least above Self-locking angle.
Consequently, it is possible to when shock loading is delivered on ring gear 3, ring gear 3 can rotate along described screw thread,
Buffer this shock loading by disc spring 1,5, and after this shock loading disappears or weakens, ring gear 3 again can be in disc spring 1,5
Back stretch and planetary gear 2 drive under, return to equilbrium position.
Using the structure that this utility model provides, ring gear 3 is non-rigid fixing, has certain buffering capacity, can reduce punching
Hitting the harm of load, wheel beam strength of tooth safety coefficient and touch-safe coefficient all improve, for the most back and forth
The operating mode effect rotated is especially apparent.
Described above it is merely exemplary for this utility model, and nonrestrictive, those of ordinary skill in the art
Understand, in the case of the spirit and scope limited without departing from claim, can many modifications may be made, change or equivalence, but
Within falling within protection domain of the present utility model.
Claims (2)
1. the planetary gear transmission mechanism that an anti-start/stop impact causes gear-box to destroy, it is characterised in that: on cabinet wall
Having ring gear with threaded, the two ends of ring gear respectively limit its axial location by a disc spring, ring gear, planetary gear and too
Sun wheel engages successively；
The helical angle of the screw thread between ring gear and cabinet wall is more than Self-locking angle.
The planetary gear transmission mechanism that anti-start/stop impact the most according to claim 1 causes gear-box to destroy, its feature exists
In: casing is fixed, and sun gear connects power shaft, and planetary gear connects output shaft by planet carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620683659.6U CN205841684U (en) | 2016-06-30 | 2016-06-30 | Anti-start/stop impact causes the planetary gear transmission mechanism that gear-box destroys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620683659.6U CN205841684U (en) | 2016-06-30 | 2016-06-30 | Anti-start/stop impact causes the planetary gear transmission mechanism that gear-box destroys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205841684U true CN205841684U (en) | 2016-12-28 |
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ID=58149370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620683659.6U Active CN205841684U (en) | 2016-06-30 | 2016-06-30 | Anti-start/stop impact causes the planetary gear transmission mechanism that gear-box destroys |
Country Status (1)
| Country | Link |
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| CN (1) | CN205841684U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114370490A (en) * | 2021-12-31 | 2022-04-19 | 江苏汇智高端工程机械创新中心有限公司 | Axial impact resistant short axial crawler belt walking speed reducer |
-
2016
- 2016-06-30 CN CN201620683659.6U patent/CN205841684U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114370490A (en) * | 2021-12-31 | 2022-04-19 | 江苏汇智高端工程机械创新中心有限公司 | Axial impact resistant short axial crawler belt walking speed reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |