CN203272758U - Contraction disc in wind driven generator gear case - Google Patents
Contraction disc in wind driven generator gear case Download PDFInfo
- Publication number
- CN203272758U CN203272758U CN 201320181244 CN201320181244U CN203272758U CN 203272758 U CN203272758 U CN 203272758U CN 201320181244 CN201320181244 CN 201320181244 CN 201320181244 U CN201320181244 U CN 201320181244U CN 203272758 U CN203272758 U CN 203272758U
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- China
- Prior art keywords
- outer shroud
- taper
- ring
- interior ring
- bolt
- 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
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Abstract
The utility model relates to a contraction disc in a wind driven generator gear case. The contraction disc comprises an inner ring and an outer ring, a taper-shaped through hole extending from one end to the other end is formed in the center of the outer ring, the inner ring is formed by a circular boss and a taper-shaped body corresponding to the inner wall of the outer ring in a combined mode, a cylindrical through hole is formed in the center of the inner ring, and an enveloping line of the circular boss and the taper-shaped body is arranged on the outer wall of the inner ring. The taper-shaped body of the inner ring is inserted in the center of the outer ring to be in contact with the inner wall of the taper-shaped through hole, the circular boss of the inner ring is connected with the end face of the outer ring through a bolt, the taper-shaped body of the inner ring is driven to be continuously inserted in the outer ring in the bolt contracting process, and the diameters of the cross section of the taper-shaped body of the inner ring are gradually contracted.
Description
Technical field
The utility model relates to the shrink disk in a kind of wind-driven generator wheel-box.
Background technique
Wind-power electricity generation is compared with traditional thermal power generation, has the free of contamination advantage of generating, compares with hydroelectric power, have that the capital construction cost is low, floor space is little, maintaining is advantage easily, and especially large-scale hydroelectric power plant, storage reservoir also easily cause certain potential safety hazard to the downstream.In wind-driven generator, gear-box is the critical component of wind-driven generator, and the accelerating gearbox for wind power generator of China's use at present is generally overall structure, and the dismounting difficulty in case break down, can only be changed assembly, causes waste.
Although someone improves gear-box, casing is carried out necessary classification, preferably resolve the dismounting difficulty, avoided the replacing assembly, reduced maintenance cost, still, we find, because the product after improving and the planet carrier input end of imported product are all standard cylindrical axle construction, machining error tends to cause the cylinder junction surface to be connected not good enough problem with shrink disk.Simultaneously, because there is distortion in the shrink disk inner ring, therefore, may there be the shearing force that produces because of the inside and outside ring distortion in bolt in the blower fan working procedure.
The model utility content
The purpose of this utility model is: be connected the problem that exists with planet carrier and the shrink disk that designs for main shaft in traditional wind power generation gear case.
The purpose of this utility model is achieved in that the shrink disk in a kind of wind-driven generator wheel-box, comprise interior ring and outer shroud, it is characterized in that: the center of outer shroud is the conical through-hole that is extended to the other end by an end, interior ring is combined by a circular bosses and a taper corresponding with the outer shroud inwall, its center is cylindrical hole, and outer wall is the envelope of circular bosses and taper; The taper of interior ring inserts the outer shroud center and contact with the inwall of conical through-hole, and the circular bosses of interior ring is connected with the outer shroud end face by bolt, and the taper continuation insertion outer shroud that encircles in driving in the process that bolt tightens up, the interior diameter of section that encircles taper of Stepwize Shrink.
In the utility model: be furnished with packing ring on the circular bosses of described interior ring, bolt is connected the circular bosses of packing ring, interior ring and is connected with the outer shroud end face.
In the utility model: the outer shroud end face that is positioned at the conical through-hole cone end one end is the ring ladder of high circle outside hanging down, and the circular bosses of interior ring progressively embeds the inner ring ring ladder of outer shroud end face in the process that bolt tightens up.
In the utility model: before inside and outside circle compressed with bolt, on interior ring, the through hole standard pitch diameter was greater than screw standard pitch diameter on outer shroud.
In the utility model: the tapered centre through-hole wall face of the screw section of bolt, outer shroud and the central cylindrical through-hole wall face of interior ring and taper outer surface scribble grease layer.
The utility model has the advantage of: because the inner and outer rings junction surface is the conical surface, its tapering is identical, has reduced machining accuracy, is conducive to the transmission of the stress of interference generation;
Because outer shroud is ladder-type, stress distribution is more reasonable, makes installation simpler and easy;
During due to free state, interior ring through hole standard pitch circle after bolt compresses inside and outside circle, has been eliminated the bolt clippers shear force that produces due to inside and outside circle distortion greater than outer shroud screw standard pitch circle, effectively protects bolt;
Because screw thread and the conical surface scribble lubricating grease, reduced the junction plane friction, effectively protect the part working surface.
Description of drawings
Fig. 1 is an embodiment's of the utility model structural representation.
In figure, 1, main shaft, 2, planet carrier, 3, bolt, 4, packing ring, 5, interior ring, 6, outer shroud.
Embodiment
Accompanying drawing discloses the utility model embodiment's concrete structure without limitation, below in conjunction with accompanying drawing, the utility model is done to describe further.
As shown in Figure 1, the utility model comprises interior ring 5 and outer shroud 6, and the center of outer shroud 6 is the conical through-holes that extended to the other end by an end, and interior ring 5 is combined by a circular bosses and a taper corresponding with outer shroud 6 inwalls, its center is cylindrical hole, and outer wall is the envelope of circular bosses and taper; The taper of interior ring 5 inserts outer shroud 6 centers and contacts with the inwall of conical through-hole, the circular bosses of interior ring 5 is connected with outer shroud 6 end faces by bolt 3, and in driving in the process that bolt 3 tightens up, the taper of ring 5 continues to insert outer shroud 6, the diameter of section of ring taper in Stepwize Shrink.
In the present embodiment: be furnished with packing ring 4 on the circular bosses of described interior ring 5, bolt 3 is connected end face with the circular bosses of packing ring 4, interior ring 5 and is connected successively with outer shroud.
In the present embodiment type: outer shroud 6 end faces that are positioned at the conical through-hole cone end one end are the ring ladder of high circle outside hanging down, and the circular bosses of interior ring 5 progressively embeds the inner ring ring ladder of outer shroud 6 end faces in the process that bolt 3 tightens up.
Before inside and outside circle compressed with bolt, on interior ring, the through hole standard pitch diameter was greater than screw standard pitch diameter on outer shroud.
During concrete enforcement: the tapered centre through-hole wall face of the screw section of bolt 3, outer shroud 6 and the central cylindrical through-hole wall face of interior ring 5 and taper outer surface scribble grease layer, can reduce like this resistance of bolt 3 tightening process.
During actual the use, the cylindrical hole at interior ring 5 centers contacts with planet carrier 2 cylindricals that are positioned at main shaft 1 connecting part, screw-down torque by bolt 3 increases interior ring 5 magnitude of interference that contact with outer shroud 6 conical surfaces, adopting conical surface interference makes interior ring 5 produce contraction deformation, 5 pairs, interior ring is positioned at planet carrier 2 cylindricals of main shaft 1 connecting part and exerts pressure, and transfer the pressure to the surface of contact of planet carrier 2 and main shaft 1, and increase the frictional force between them, rotate thereby make main shaft 1 drive planet carrier 2.
Claims (5)
1. the shrink disk in a wind-driven generator wheel-box, comprise interior ring and outer shroud, it is characterized in that: the center of outer shroud is the conical through-hole that is extended to the other end by an end, interior ring is combined by a circular bosses and a taper corresponding with the outer shroud inwall, its center is cylindrical hole, and outer wall is the envelope of circular bosses and taper; The taper of interior ring inserts the outer shroud center and contact with the inwall of conical through-hole, and the circular bosses of interior ring is connected with the outer shroud end face by bolt, and the taper continuation insertion outer shroud that encircles in driving in the process that bolt tightens up, the interior diameter of section that encircles taper of Stepwize Shrink.
2. the shrink disk in wind-driven generator wheel-box according to claim 1, it is characterized in that: be furnished with packing ring on the circular bosses of described interior ring, bolt is connected the circular bosses of packing ring, interior ring and is connected with the outer shroud end face.
3. the shrink disk in wind-driven generator wheel-box according to claim 1, it is characterized in that: the outer shroud end face that is positioned at the conical through-hole cone end one end is the ring ladder of low outer high circle, and the circular bosses of interior ring progressively embeds the inner ring ring ladder of outer shroud end face in the process that bolt tightens up.
4. the shrink disk according to claim 1 and 2 or 3 described wind-driven generator wheel-boxes is characterized in that: before inside and outside circle compressed with bolt, on interior ring, the through hole standard pitch diameter was greater than screw standard pitch diameter on outer shroud.
5. the shrink disk in wind-driven generator wheel-box according to claim 4, it is characterized in that: the tapered centre through-hole wall face of the screw section of bolt, outer shroud and the central cylindrical through-hole wall face of interior ring and taper outer surface scribble grease layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320181244 CN203272758U (en) | 2013-04-12 | 2013-04-12 | Contraction disc in wind driven generator gear case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320181244 CN203272758U (en) | 2013-04-12 | 2013-04-12 | Contraction disc in wind driven generator gear case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203272758U true CN203272758U (en) | 2013-11-06 |
Family
ID=49503176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320181244 Expired - Lifetime CN203272758U (en) | 2013-04-12 | 2013-04-12 | Contraction disc in wind driven generator gear case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203272758U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185782A (en) * | 2019-06-24 | 2019-08-30 | 南京高速齿轮制造有限公司 | The planet carrier and main shaft connection structure of wind turbine gearbox |
-
2013
- 2013-04-12 CN CN 201320181244 patent/CN203272758U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185782A (en) * | 2019-06-24 | 2019-08-30 | 南京高速齿轮制造有限公司 | The planet carrier and main shaft connection structure of wind turbine gearbox |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191014 Address after: 211100 No. 30 Houjiao Road, Jiangning District, Nanjing City, Jiangsu Province (Jiangning High-tech Park) Co-patentee after: Nanjing High Precision Transmission Equipment Manufacturing Group Co.,Ltd. Patentee after: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. Address before: 211100 No. 1 East Tianyuan Road, Jiangning Science Park, Nanjing, Jiangsu Patentee before: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200511 Address after: No. 30 Houjiao Road, Jiangning District, Nanjing, Jiangsu Province, 210000 (Jiangning High-tech Park) Patentee after: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. Address before: 211100 No. 30 Houjiao Road, Jiangning District, Nanjing City, Jiangsu Province (Jiangning High-tech Park) Co-patentee before: Nanjing High Precision Transmission Equipment Manufacturing Group Co.,Ltd. Patentee before: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20230207 Granted publication date: 20131106 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20230327 Granted publication date: 20131106 |
|
| PD01 | Discharge of preservation of patent | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |
|
| CX01 | Expiry of patent term |