CN211841812U - Tool for disassembling bolt of blade root of wind generating set - Google Patents
Tool for disassembling bolt of blade root of wind generating set Download PDFInfo
- Publication number
- CN211841812U CN211841812U CN201922181551.3U CN201922181551U CN211841812U CN 211841812 U CN211841812 U CN 211841812U CN 201922181551 U CN201922181551 U CN 201922181551U CN 211841812 U CN211841812 U CN 211841812U
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- blade root
- supporting beam
- thread pull
- bolt
- main nut
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Abstract
The utility model discloses a frock is dismantled to wind generating set blade root bolt, including a supporting beam, screw thread pull rod, main nut and lock nut, a supporting beam has two parallel and symmetrical screw thread pull rods of each other through threaded connection, and the one end of every screw thread pull rod is fixed on a supporting beam through two lock nuts, the screw hole of main nut center department is used for cooperateing with the blade root bolt, and its both ends are formed with two through-holes respectively, and the other end of these two screw thread pull rods penetrates respectively in two through-holes to it is fixed with main nut through two lock nuts respectively. The utility model discloses can make things convenient for, swiftly dismantle the blade root bolt.
Description
Technical Field
The utility model belongs to the technical field of the technique that wind generating set blade root connecting bolt changed and specifically relates to indicate a frock is dismantled to wind generating set blade root bolt.
Background
The connecting bolt for the blade and the variable pitch bearing of the wind generating set is usually in a double-end stud form, one end of the stud is screwed into a thread of a pre-embedded nut in a blade base body, and the other end of the stud penetrates through an inner ring of the variable pitch bearing and is fastened by the nut. During the installation or operation of the wind farm, the stud, i.e. the blade root bolt, may break or the pretension may exceed the yield limit, at which point the bolt needs to be replaced. Because the positioning O-shaped rubber ring is generally added between the bolt and the hole wall, in the disassembling process, after the internal thread is unscrewed, the bolt is very difficult to be continuously unscrewed, and even rotates repeatedly in the hole without retreating outwards, so that the bolt can not be finally unscrewed. At present, operation and maintenance personnel generally continue to screw outwards by tools such as a wrench and the like, and can screw out only by consuming a large amount of time, so that the efficiency is very low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a frock is dismantled to wind generating set blade root bolt, have simple structure, convenient operation, efficient, processing cost is low, the commonality is good, advantages such as dependable performance, can conveniently, swiftly dismantle the blade root bolt.
In order to achieve the above object, the present invention provides a technical solution: the utility model provides a frock is dismantled to wind generating set blade root bolt, includes a supporting beam, screw thread pull rod, main nut and lock nut, a supporting beam has two parallel and symmetrical screw thread pull rods of each other through threaded connection, and the one end of every screw thread pull rod is fixed on a supporting beam through two lock nuts, the screw hole of main nut center department is used for cooperateing with the blade root bolt, and its both ends are formed with two through-holes respectively, and the other end of these two screw thread pull rods penetrates respectively in two through-holes to it is fixed with main nut through two lock nuts respectively.
Compared with the prior art, the utility model, have following advantage and beneficial effect:
the utility model discloses a supporting beam, screw thread pull rod and main nut cooperation form a draw-off gear, can make things convenient for, swiftly dismantle the blade root bolt, and overall structure is simple, and the component part is few, and the processing cost is low, carries and convenient operation, and efficiency is dismantled in very big improvement, and main nut and screw thread pull rod can adjust the distance of a supporting beam to the jack, are fit for the dismantlement of different length blade root bolts, and the commonality is good, repeatedly usable simultaneously, and economic nature is good, and the performance is more reliable.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the position relationship between the present invention and the jack.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
As shown in fig. 1 to 2, the tool for detaching the bolt of the blade root of the wind generating set according to the embodiment includes a supporting beam 1, two threaded pull rods 2, a main nut 3 and locking nuts 4, wherein the supporting beam 1 is connected with the two threaded pull rods 2 which are parallel and symmetrical to each other through threads, one end of each threaded pull rod 2 is fixed on the supporting beam 1 through the two locking nuts 4, a threaded hole at the center of the main nut 3 is used for being matched with the bolt of the blade root, two through holes are formed at two ends of the threaded pull rod, and the other ends of the two threaded pull rods 2 penetrate into the two through holes respectively and are fixed with the main nut 3 through the two locking nuts.
Use the utility model discloses a concrete operation process as follows:
1) firstly, loosening a nut of a blade root bolt by using a hydraulic stretcher, and screwing out the nut;
2) continuing to screw the blade root bolt by using a spanner until the blade root bolt is screwed out of the blade root embedded nut;
3) after the tool of the utility model is assembled, the main nut 3 is completely screwed on the blade root bolt, the height of the threaded pull rod 2 is adjusted, two jacks 5 are placed on the hub webs close to the two sides of the supporting beam 1, the two jacks 5 respectively correspond to the two sides of the supporting beam 1 and act on the side surface of the supporting beam 1 facing the main nut 3;
4) the two jacks 5 apply force simultaneously, the force of the two jacks 5 is kept balanced in the upward force application process, and then the blade root stud is synchronously pushed upward out of the blade root bolt hole;
5) with the length of the blade root bolt pulled outwards increased, the main nut 3 can be appropriately screwed onto the blade root bolt in the opposite direction, and the two jacks 5 continue to apply force until the blade root bolt completely exits from the bearing bolt hole.
6) And after the blade root bolt is withdrawn, unscrewing the main nut 3, disassembling the tool and finishing the operation.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that all the changes made according to the shape and principle of the present invention should be covered within the protection scope of the present invention.
Claims (1)
1. The utility model provides a frock is dismantled to wind generating set blade root bolt which characterized in that: the blade root bolt comprises a supporting beam, two thread pull rods, a main nut and locking nuts, wherein the supporting beam is connected with the two thread pull rods which are parallel and symmetrical through threads, one end of each thread pull rod is fixed on the supporting beam through the two locking nuts, a threaded hole in the center of the main nut is used for being matched with a blade root bolt, two through holes are formed in two ends of each thread pull rod respectively, and the other ends of the two thread pull rods penetrate into the two through holes respectively and are fixed with the main nut through the two locking nuts respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922181551.3U CN211841812U (en) | 2019-12-09 | 2019-12-09 | Tool for disassembling bolt of blade root of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922181551.3U CN211841812U (en) | 2019-12-09 | 2019-12-09 | Tool for disassembling bolt of blade root of wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211841812U true CN211841812U (en) | 2020-11-03 |
Family
ID=73215476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922181551.3U Active CN211841812U (en) | 2019-12-09 | 2019-12-09 | Tool for disassembling bolt of blade root of wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211841812U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113927803A (en) * | 2021-09-30 | 2022-01-14 | 中复连众(包头)复合材料有限公司 | Wind power blade root embedded bolt sleeve positioning bolt drawing tool and operation method thereof |
-
2019
- 2019-12-09 CN CN201922181551.3U patent/CN211841812U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113927803A (en) * | 2021-09-30 | 2022-01-14 | 中复连众(包头)复合材料有限公司 | Wind power blade root embedded bolt sleeve positioning bolt drawing tool and operation method thereof |
| CN113927803B (en) * | 2021-09-30 | 2024-07-05 | 中材科技风电叶片股份有限公司 | Wind power blade root embedded bolt sleeve positioning bolt drawing tool and operation method thereof |
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