CN203308869U - Vane bolt - Google Patents
Vane bolt Download PDFInfo
- Publication number
- CN203308869U CN203308869U CN2013202431296U CN201320243129U CN203308869U CN 203308869 U CN203308869 U CN 203308869U CN 2013202431296 U CN2013202431296 U CN 2013202431296U CN 201320243129 U CN201320243129 U CN 201320243129U CN 203308869 U CN203308869 U CN 203308869U
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- CN
- China
- Prior art keywords
- threads
- short
- thread
- screw rod
- long
- 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 discloses a vane bolt. The vane bolt is characterized in that long threads and short threads are arranged at the two ends of a screw rod respectively, the outer diameter of the long threads and the outer diameter of the short threads are slightly larger than that of the screw rod, conical inclined faces are arranged on the inner side of the long threads and the inner side of the short threads respectively, and chamfers are arranged at the outer end of the long threads and the outer end of the short threads respectively. The outer shape and all performance indexes of the vane bolt meet the using requirements under the minus 40 DEG C condition, and thus the vane bolt meets mounting and using requirements of all draught fan generator sets and suitable for being used on lands and oceans around the world under harsh conditions.
Description
Technical field
The utility model relates to a kind of bolt, is a kind of blade bolt for wind energy generating plant specifically.
Background technique
Blade bolt is the important connection part of wind energy generating plant, its performance directly affects the quality of wind power generating set, the expensive cost of fan operation and installation requires equipment that perfect quality must be arranged, and tens meters even the wind tower of nearly hundred meters high more need the blade bolt of reliable in quality, blade bolt should guarantee certain tensile strength, wants low-temperature impact-resistant simultaneously, corrosion-resistant, anti-loosening property good.Functional under traditional blade bolt normal temperature condition, but under low temperature under condition performance variation very large, do not reach usage requirement.
Summary of the invention
The purpose of this utility model is that a kind of low-temperature impact-resistant, the blade bolt that corrosion-resistant, anti-loosening property is good are provided.
To achieve these goals, the utility model is respectively equipped with long screw thread and short thread at the two ends of screw rod, the external diameter of described long screw thread and short thread is slightly larger than the external diameter of screw rod, is respectively equipped with tapered slope in the inboard of long screw thread and short thread, is respectively equipped with chamfering in the outer end of long screw thread and short thread.
By above setting; the utility model adopts superior alloy steel to make, and the external dimension at each position, geometrical shape require processing according to the use state, through the heat treatment of atmosphere protection multipurpose stove; through repeatedly surface treatment and postorder, finish dealing with, surface quality is adapted to working environment.External shape of the present utility model and property indices meet usage requirement under-40 ℃ of conditions, meet the requirement of installing and using of each blower fan generator set, and under satisfied mal-condition all over the world, land and ocean are used.
The accompanying drawing explanation
Now the utility model is described in further detail by reference to the accompanying drawings.
Fig. 1 is structural representation of the present utility model.
In figure: 1, screw rod, 2, long screw thread, 3, short thread, 4, tapered slope, 5, chamfering.
Embodiment
As shown in Figure 1, the utility model is respectively equipped with long screw thread 2 and short thread 3 at the two ends of screw rod 1, the external diameter of described long screw thread 2 and short thread 3 is slightly larger than the external diameter of screw rod 1, inboard at long screw thread 2 and short thread 3 is respectively equipped with tapered slope 4, is respectively equipped with chamfering 5 in the outer end of long screw thread 2 and short thread 3.By above setting; the utility model is through atmosphere protection multipurpose stove heat treatment and surperficial Dacroment is processed and postorder is finished dealing with; guarantee multinomial mechanical property requirement, particularly low-temperature impact-resistant requirement, make the corrosion-resistant property indices that waits of product reach the optimum state.The utility model meets the matching requirements of blower fan, has good economic benefit and social benefit.
Claims (1)
1. blade bolt, it is characterized in that: be respectively equipped with long screw thread and short thread at the two ends of screw rod, the external diameter of described long screw thread and short thread is slightly larger than the external diameter of screw rod, is respectively equipped with tapered slope in the inboard of long screw thread and short thread, is respectively equipped with chamfering in the outer end of long screw thread and short thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202431296U CN203308869U (en) | 2013-05-08 | 2013-05-08 | Vane bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202431296U CN203308869U (en) | 2013-05-08 | 2013-05-08 | Vane bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203308869U true CN203308869U (en) | 2013-11-27 |
Family
ID=49615082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202431296U Expired - Fee Related CN203308869U (en) | 2013-05-08 | 2013-05-08 | Vane bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203308869U (en) |
-
2013
- 2013-05-08 CN CN2013202431296U patent/CN203308869U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20140508 |