CN103225647A - Blade-used nut - Google Patents
Blade-used nut Download PDFInfo
- Publication number
- CN103225647A CN103225647A CN 201310165231 CN201310165231A CN103225647A CN 103225647 A CN103225647 A CN 103225647A CN 201310165231 CN201310165231 CN 201310165231 CN 201310165231 A CN201310165231 A CN 201310165231A CN 103225647 A CN103225647 A CN 103225647A
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- CN
- China
- Prior art keywords
- hole
- nut
- blade
- used nut
- inner thread
- 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.)
- Pending
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a blade-used nut. The blade-used nut is characterized in that a through hole is formed lengthways in the middle of a cylindrical nut; inner thread is formed in the inner wall of the through hole; and a locking nut hole with the radius larger than that of the through hole is formed in one end of the through hole. According to the invention, the blade-used nut adopts superior alloy steel; the inner thread is high in precision requirement; and after furnace heating treatment under protective atmosphere, the surface quality is suitable for working condition, the outer shape and various performance indexes meet the using requirement under -45 DEG C, and the mounting and using requirements of a generator set of various blowers are met.
Description
Technical field
The present invention relates to a kind of nut, is a kind of blade nut that is used on the wind energy generating plant specifically.
Background technique
Blade nut is the important connection part of wind energy generating plant, and its performance directly influences the quality of wind power generating set.Blade nut is screwed on the screw thread of blade bolt, plays the locking effect.Because of the wind energy generating plant work under bad environment, the wind energy fastening piece should guarantee certain tensile strength, want simultaneously low-temperature impact-resistant, corrosion-resistant, anti-loosening property good.Traditional blade nut normal temperature performance is passable, but performance variation is very big under the low temperature, does not reach usage requirement.
Summary of the invention
Purpose of the present invention is that a kind of blade nut that is used on the wind energy generating plant is provided.
To achieve these goals, the present invention vertically is provided with through hole in the intermediate portion of cylindrical nut, is provided with internal thread on the inwall of through hole, and described through hole one end is provided with the locking nut hole of radius greater than through hole.
By above setting; the present invention adopts superior alloy steel; the external dimension at each position, geometrical shape require processing according to user mode, because of bearing capacity is big, and internal thread required precision height; adopt special-purpose tapping frock and equipment; through the heat treatment of atmosphere protection multipurpose stove, to finish dealing with through repeatedly surface treatment and postorder, surface quality is adapted to working environment; external shape and every performance index satisfy usage requirement under-45 ℃ of conditions, satisfy the requirement of installing and using of each blower fan generator set.
Description of drawings
Now the invention will be further described in conjunction with the accompanying drawings.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the sectional view of through hole.
Among the figure: 1, cylindrical nut, 2, through hole, 3, internal thread, 4, the locking nut hole.
Embodiment
As shown in Figure 1, 2, the present invention vertically is provided with through hole 2 in the intermediate portion of cylindrical nut 1, is provided with internal thread 3 on the inwall of through hole 2, and described through hole 2 one ends are provided with the locking nut hole 4 of radius greater than through hole 2.By above setting, the present invention's use that matches with the blade bolt, internal thread 3 precision height, bearing capacity is big, avoids stripped thread dropout phenomenon.Comprehensive mechanical performance of the present invention is good, and particularly function admirable under the cryogenic conditions satisfies the matching requirements of blower fan, has good economic benefits and social benefit.
Claims (1)
1. blade nut, it is characterized in that: the intermediate portion at cylindrical nut vertically is provided with through hole, is provided with internal thread on the inwall of through hole, and described through hole one end is provided with the locking nut hole of radius greater than through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310165231 CN103225647A (en) | 2013-05-08 | 2013-05-08 | Blade-used nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310165231 CN103225647A (en) | 2013-05-08 | 2013-05-08 | Blade-used nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103225647A true CN103225647A (en) | 2013-07-31 |
Family
ID=48836221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310165231 Pending CN103225647A (en) | 2013-05-08 | 2013-05-08 | Blade-used nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103225647A (en) |
-
2013
- 2013-05-08 CN CN 201310165231 patent/CN103225647A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130731 |