CN218152288U - Double-positioning planetary component structure and yaw variable pitch speed reducer using same - Google Patents
Double-positioning planetary component structure and yaw variable pitch speed reducer using same Download PDFInfo
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- CN218152288U CN218152288U CN202122316535.8U CN202122316535U CN218152288U CN 218152288 U CN218152288 U CN 218152288U CN 202122316535 U CN202122316535 U CN 202122316535U CN 218152288 U CN218152288 U CN 218152288U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model discloses a two location planet part structures and use its driftage change oar reduction gear relates to wind-powered electricity generation driftage and changes oar reduction gear technical field, and it can effectively improve assembly efficiency, saves the assembly step, improves the axiality of planet axle and both arms planet carrier. Two location planet part structure, include: the planet gear is internally provided with a needle bearing, and two ends of the planet gear are provided with gaskets; the planet wheel, the needle bearing and the gasket are arranged in a double-arm planet carrier together; the double-arm planet carrier is also provided with a planet shaft of an optical axis, and the planet shaft is in interference fit with the planet shaft mounting hole of the double-arm planet carrier; a hole check ring is arranged in the double-arm planet carrier, and the hole check ring and the shaft shoulder are used for limiting the axial movement of the planet shaft.
Description
Technical Field
The utility model relates to a wind-powered electricity generation driftage becomes oar reduction gear technical field, especially relates to a two location planet part structures and use its driftage to become oar reduction gear.
Background
The yaw and pitch reducer is used as an essential part of wind power generation, and directly influences the efficiency of the wind power generation; in yaw and pitch reducers, a planet shaft and a double-arm planet carrier are also important.
In the prior art, an assembly process of a loose-proof structure planet shaft and a planet carrier system is as follows: the method comprises the steps of installing a needle bearing into a planet wheel, aligning a gasket, the planet wheel and a planet shaft mounting hole in a double-arm planet carrier, inserting the planet shaft into the planet shaft mounting hole, extruding the planet shaft mounting hole in the double-arm planet carrier to be matched with the outer end face of a knurled nut in the planet shaft, deforming the inner surface of the planet shaft mounting hole in the double-arm planet carrier under the action of knurling, embedding the knurling into the inner surface of the planet shaft mounting hole in the double-arm planet carrier, matching a positioning surface with the planet shaft mounting hole in the double-arm planet carrier in the planet shaft mounting process, matching the knurling with the inner surface of the planet shaft mounting hole after the installation of the knurled planet shaft is finished, and ensuring that the planet shaft and the planet carrier do not move relatively in the axial direction and the circumferential direction.
However, the existing matching structure of the planet shaft and the double-arm planet carrier adopts the planet shaft with knurls, and the knurls are processed by utilizing a hob, so that the manufacturing cost is high, and the processing difficulty is high; in addition, the planet shaft with the jackscrew is adopted, the machining process is multiple, holes need to be drilled in the double-arm planet carrier, threaded holes need to be tapped on the planet shaft, and the assembly efficiency is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a two location planet part structures and use its driftage change oar reduction gear, it can effectively improve assembly efficiency, saves the assembly step, improves the axiality of planet axle and both arms planet carrier.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a dual positioning planetary member arrangement comprising: the planet gear is internally provided with a needle bearing, and two ends of the planet gear are provided with gaskets; the planet wheel, the needle bearing and the gasket are arranged in a double-arm planet carrier together; the double-arm planet carrier is also provided with a planet shaft of an optical axis, and the planet shaft is in interference fit with the planet shaft mounting hole of the double-arm planet carrier; a hole check ring is arranged in the double-arm planet carrier, and the hole check ring and the shaft shoulder are used for limiting the axial movement of the planet shaft.
In practical application, the planet shaft is placed in liquid nitrogen for cooling and then is arranged in the double-arm planet carrier.
The planet gears and the planet shafts are supported by the needle roller bearings, and the needle roller bearings are high-strength wear-resistant needle roller bearings.
The gaskets at the two ends of the planet wheel are wear-resistant gaskets.
Specifically, the wear-resistant gasket is made of metal or metal composite material; alternatively, the wear resistant shim has a metal coating.
Alternatively, the wear resistant shim is a PEEK shim.
Compared with the prior art, two location planet part structures have following advantage:
in the double-positioning planetary component structure provided by the utility model, because the planetary gear is provided with the needle bearing, the two ends of the planetary gear are provided with the gaskets; the planet wheel, the needle bearing and the gasket are arranged in the double-arm planet carrier together; the double-arm planet carrier is also provided with a planet shaft with an optical axis, and the planet shaft is in interference fit with the planet shaft mounting hole of the double-arm planet carrier, so that the coaxiality of the planet shaft and the planet shaft mounting hole in the double-arm planet carrier can be effectively improved, the fit relation is improved, and the centering effect in the installation process of the planet shaft is realized; in addition, because the hole retaining ring is arranged in the double-arm planet carrier, and the hole retaining ring and the shaft shoulder are used for limiting the axial movement of the planet shaft, the double-arm planet carrier has better axial positioning effect.
A yaw pitch reducer comprising: a dual positioning planetary member arrangement as claimed in any one of the preceding claims.
Compared with the prior art, the yaw variable pitch speed reducer has the same advantages as the double-positioning planetary component structure, and the details are not repeated.
Drawings
Fig. 1 is a schematic view of a double-positioning planetary component structure provided in an embodiment of the present invention.
Reference numerals:
1-a planet wheel; 2-needle roller bearing; 3-a gasket; 4-double arm planet carrier; 5-planet axis; 6-circlip for hole; 7-shaft shoulder.
Detailed Description
For convenience of understanding, the following describes in detail a dual-positioning planetary component structure and a yaw variable pitch reducer using the same, which are provided by the embodiments of the present invention, with reference to the drawings of the specification.
An embodiment of the utility model provides a two location planet part structures, as shown in fig. 1, include: the planet gear 1 is provided with a needle bearing 2, and two ends of the planet gear 1 are provided with gaskets 3; the planet wheel 1, the needle bearing 2 and the gasket 3 are arranged in the double-arm planet carrier 4 together; the double-arm planet carrier 4 is also provided with a planet shaft 5 with an optical axis, and the planet shaft 5 is in interference fit with the planet shaft mounting hole of the double-arm planet carrier 4; a circlip 6 is fitted in the double-arm carrier 4 and the circlip 6 and the shoulder 7 serve to restrict axial movement of the planet shaft 5.
Compared with the prior art, the embodiment of the utility model provides a two location planet part structures have following advantage:
in the double-positioning planetary component structure provided by the embodiment of the utility model, because the planetary wheel 1 is provided with the needle bearing 2, the two ends of the planetary wheel 1 are provided with the gaskets 3; the planet wheel 1, the needle bearing 2 and the gasket 3 are arranged in the double-arm planet carrier 4 together; the double-arm planet carrier 4 is also provided with a planet shaft 5 with an optical axis, and the planet shaft 5 is in interference fit with the planet shaft mounting hole of the double-arm planet carrier 4, so that the coaxiality of the planet shaft 5 and the planet shaft mounting hole in the double-arm planet carrier 4 can be effectively improved, the fit relation is improved, and the centering effect in the installation process of the planet shaft 5 is realized; in addition, the double-arm planet carrier 1 is provided with the hole retainer 6, and the hole retainer 6 and the shaft shoulder 7 are used for limiting the axial movement of the planet shaft 5, so that the double-arm planet carrier has better axial positioning effect.
In practical application, the planet shaft 5 can be placed in liquid nitrogen for cooling, and then is placed in the double-arm planet carrier 4 after cooling, so that good interference fit is realized.
The planet wheel 1 and the planet shaft 5 can be supported by a needle bearing 2, and the needle bearing 2 can preferably be a high-strength wear-resistant needle bearing, so that the planet wheel 1 can better transmit.
Wherein, the gasket 3 at above-mentioned planet wheel 1 both ends can preferably adopt wear-resisting gasket to effectively improve the life of each part.
Specifically, the wear-resistant gasket can be made of metal or metal composite material; alternatively, the wear resistant pad may have a metal coating.
The use of metallic materials, metal composites or metallic coatings has the advantage of being able to withstand relatively high radial or axial loads, which requires the addition of lubricants, greases and other ionic lubricating fluids.
Alternatively, the wear resistant gasket may be a PEEK gasket.
The PEEK gasket is a high-molecular special engineering plastic, has self-lubricating property, wear resistance and low friction factor, and belongs to a thermoplastic material which can be subjected to mold opening injection molding.
A yaw pitch reducer, comprising: the double-positioning planetary component structure comprises a planetary wheel 1, wherein a high-strength wear-resistant needle bearing 2 is arranged in the planetary wheel 1, and wear-resistant gaskets 3 are arranged at two ends of the planetary wheel 1, as shown in fig. 1; the planet wheel 1, the needle bearing 2 and the gasket 3 are arranged in the double-arm planet carrier 4 together; the double-arm planet carrier 4 is also provided with a planet shaft 5 with an optical axis, and the planet shaft 5 is in interference fit with the planet shaft mounting hole of the double-arm planet carrier 4; a hole retainer ring 6 is arranged in the double-arm planet carrier 4, and the hole retainer ring 6 and a shaft shoulder 7 are used for limiting the axial movement of the planet shaft 5;
in practical application, the planet shaft 5 is put into liquid nitrogen for cooling and then is put into the double-arm planet carrier 4.
To sum up, the embodiment of the utility model provides a two location planet part structures and use its driftage to become oar reduction gear mainly has following several point advantages:
1. the wear-resistant needle roller bearing and the gasket are adopted, so that the service life of the product is long, and the transmission operation is stable;
2. the planet shaft and the planet shaft mounting hole of the double-arm planet carrier are in interference fit, so that the coaxiality of the planet shaft and the planet shaft mounting hole in the double-arm planet carrier is improved;
3. the axial movement of the planet shaft is limited by adopting the retainer ring for the hole and the shaft shoulder, and the good axial positioning effect is achieved
4. A small number of parts are used, the operation steps are simple, and the assembly efficiency is improved;
5. the used parts have simple structures, reduce the processing procedures, improve the processing efficiency and reduce the manufacturing cost.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A dual positioning planetary member arrangement, comprising: the planet gear is internally provided with a needle bearing, and two ends of the planet gear are provided with gaskets; the planet wheel, the needle bearing and the gasket are arranged in a double-arm planet carrier together; the double-arm planet carrier is also provided with a planet shaft of an optical axis, and the planet shaft is in interference fit with the planet shaft mounting hole of the double-arm planet carrier; a hole check ring is arranged in the double-arm planet carrier, and the hole check ring and the shaft shoulder are used for limiting the axial movement of the planet shaft.
2. The dual positioning planetary member arrangement as in claim 1, wherein the planet wheels and the planet axles are supported by the needle bearings, and the needle bearings are high strength wear resistant needle bearings.
3. The dual positioning planet component structure of claim 1, wherein the spacers at both ends of the planet are wear resistant spacers.
4. The dual positioning planetary member arrangement as in claim 3, wherein the wear resistant shims are fabricated from a metal or a metal composite; alternatively, the wear resistant shim has a metal coating.
5. The dual positioning planetary component arrangement as in claim 3, wherein the wear resistant shims are PEEK shims.
6. A yaw pitch reducer, comprising: a dual positioning planetary member arrangement as in any of claims 1-5 above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122316535.8U CN218152288U (en) | 2021-09-24 | 2021-09-24 | Double-positioning planetary component structure and yaw variable pitch speed reducer using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122316535.8U CN218152288U (en) | 2021-09-24 | 2021-09-24 | Double-positioning planetary component structure and yaw variable pitch speed reducer using same |
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| Publication Number | Publication Date |
|---|---|
| CN218152288U true CN218152288U (en) | 2022-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122316535.8U Active CN218152288U (en) | 2021-09-24 | 2021-09-24 | Double-positioning planetary component structure and yaw variable pitch speed reducer using same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115654082A (en) * | 2022-12-28 | 2023-01-31 | 苏州亚太精睿传动科技股份有限公司 | Double-arm planetary assembly and yaw gearbox |
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2021
- 2021-09-24 CN CN202122316535.8U patent/CN218152288U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115654082A (en) * | 2022-12-28 | 2023-01-31 | 苏州亚太精睿传动科技股份有限公司 | Double-arm planetary assembly and yaw gearbox |
| CN115654082B (en) * | 2022-12-28 | 2023-04-07 | 苏州亚太精睿传动科技股份有限公司 | Double-arm planetary assembly and yaw gearbox |
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