CN213616438U - Pulling device for impeller positioning pin of wind generating set - Google Patents
Pulling device for impeller positioning pin of wind generating set Download PDFInfo
- Publication number
- CN213616438U CN213616438U CN202021898348.4U CN202021898348U CN213616438U CN 213616438 U CN213616438 U CN 213616438U CN 202021898348 U CN202021898348 U CN 202021898348U CN 213616438 U CN213616438 U CN 213616438U
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- positioning pin
- pulling block
- pin pulling
- screw rod
- screwed
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Abstract
The utility model discloses a pulling device for a wind generating set impeller positioning pin, which comprises a screw rod, a positioning pin pulling block, a thrust cylindrical roller bearing, a countersunk screw, a non-return cover, a first hexagonal nut and a second hexagonal nut, wherein one end of the screw rod is screwed into a threaded hole of the impeller positioning pin and is screwed and fixed by the first hexagonal nut, the positioning pin pulling block is of a cylindrical structure with a bottom at one end, a through hole is formed at the center of the bottom of the positioning pin pulling block, a groove position for installing the thrust cylindrical roller bearing is formed at the outer side of the bottom of the positioning pin pulling block, the positioning pin pulling block is sleeved on the screw rod through the through hole at the bottom of the positioning pin pulling block, the thrust cylindrical roller bearing is sleeved on the screw rod and is arranged in the groove position of the positioning pin pulling block, the non-return cover and the countersunk screw are blocked in the groove position, the second hexagonal nut is screwed into, and is abutted against the thrust cylindrical roller bearing. The utility model has the advantages of simple structure, convenient operation, efficient and high safety.
Description
Technical Field
The utility model belongs to the technical field of the technique of wind generating set impeller hoist and mount location and specifically relates to indicate a pull and dial device for wind generating set impeller locating pin.
Background
The host of the wind generating set generally considers the inclination angle of 5 degrees to 7 degrees during the design, so as to prevent the blades from generating flexible deformation due to wind pressure, and further prevent the blades from impacting a tower barrel to generate a tower collapse event. Due to the existence of the inclination angle of the main machine, when the impeller and the main machine are in butt joint installation in the air, an opening angle exists between the installation surface of the impeller and the installation surface of the main machine, and great difficulty is brought to installation. At this moment, an impeller positioning pin is generally inserted into the positioning hole, the end part of the positioning pin is locked by a nut to prevent the positioning pin from sliding off, then the main hook head slowly falls down, and the impeller slowly sticks to the host machine mounting surface by the self weight of the impeller. In order to ensure that the bolt holes of the two mounting surfaces are aligned, the positioning pin and the positioning hole are in small clearance fit, so that the later positioning pin is difficult to take out. Generally adopt the hammer to strike among the prior art and make it withdraw from, but the locating pin can't withdraw from if dynamics is little, and dynamics is big can lead to the locating pin directly to fall from the high altitude, has great potential safety hazard.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a pull and dial device for wind generating set impeller locating pin, have advantages such as simple structure, convenient operation, efficient and security height.
In order to achieve the above object, the present invention provides a technical solution: a pulling device for an impeller positioning pin of a wind generating set comprises a screw rod, a positioning pin pulling block, a thrust cylindrical roller bearing, a countersunk screw, a non-return cover, a first hexagon nut and a second hexagon nut, wherein one end of the screw rod is screwed into a threaded hole of the impeller positioning pin and is screwed and fixed by the first hexagon nut, the positioning pin pulling block is of a cylindrical structure with a bottom at one end, a through hole is formed in the center of the bottom of the positioning pin pulling block, a groove position for installing the thrust cylindrical roller bearing is formed in the outer side of the bottom of the positioning pin pulling block, the positioning pin pulling block is sleeved on the screw rod through the through hole in the bottom of the positioning pin pulling block, the thrust cylindrical roller bearing is sleeved on the screw rod and is arranged in the groove position of the positioning pin pulling block, the non-return cover and the countersunk screw are blocked in the groove position, the second hexagon nut is screwed into the screw rod, penetrates out of the, and the screw drives the positioning pin to be pulled out by screwing the second hexagon nut.
Compared with the prior art, the utility model, have following advantage and beneficial effect:
adopt the utility model discloses a pull and dial device and dismantle impeller locating pin, convenient operation has alleviateed constructor's intensity of labour greatly, has shortened the dismantlement time, and is connected through the screw rod with pulling and dial the device the locating pin, avoids falling from the high altitude at dismantlement in-process locating pin, and the security is high.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
As shown in fig. 1, the pulling device for the impeller positioning pin of the wind generating set in this embodiment includes a screw rod 1, a positioning pin pulling block 2, a thrust cylindrical roller bearing 3, a countersunk screw 4, a non-return cover 5, a first hexagonal nut 6 and a second hexagonal nut 7, wherein one end of the screw rod 1 is screwed into a threaded hole of an impeller positioning pin 8, and is screwed and fixed by the first hexagonal nut 6, the positioning pin pulling block 2 is a cylindrical structure with a bottom at one end, a through hole is formed at the center of the bottom of the positioning pin pulling block 2, a slot for installing the thrust cylindrical roller bearing 3 is formed at the outer side of the bottom of the positioning pin pulling block, the positioning pin pulling block 2 is sleeved on the screw rod 1 through the through hole at the bottom thereof, the thrust cylindrical roller bearing 3 is sleeved on the screw rod 1 and is placed in the slot of the positioning pin pulling block 2, and is blocked in the slot by the non-return cover 5, the second hexagonal nut 7 is screwed into the part of the screw rod 1 penetrating out of the positioning pin pulling block 2 and abuts against the cylindrical roller thrust bearing 3, and the screw rod 1 drives the positioning pin 8 to be pulled out by screwing the second hexagonal nut 7.
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 draw and dial device for wind generating set impeller locating pin which characterized in that: comprises a screw rod, a positioning pin pulling block, a thrust cylindrical roller bearing, a countersunk screw, a non-return cover, a first hexagon nut and a second hexagon nut, wherein one end of the screw rod is screwed into a threaded hole of an impeller positioning pin, and is screwed and fixed by adopting a first hexagon nut, the positioning pin pulling block is of a cylindrical structure with a bottom at one end, a through hole is formed at the center of the bottom of the positioning pin pulling block, a slot position for installing a thrust cylindrical roller bearing is formed on the outer side of the bottom of the positioning pin pulling block, the positioning pin pulling block is sleeved on the screw rod through a through hole at the bottom of the positioning pin pulling block, the thrust cylindrical roller bearing is sleeved on the screw rod and is arranged on the slot position of the positioning pin pulling block, and a non-return cover and a countersunk head screw are adopted to be blocked in the slot position, the second hexagon nut is screwed into the part of the screw rod which penetrates out of the positioning pin pulling block, and the second hexagonal nut is screwed to drive the screw to pull out the positioning pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021898348.4U CN213616438U (en) | 2020-09-03 | 2020-09-03 | Pulling device for impeller positioning pin of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021898348.4U CN213616438U (en) | 2020-09-03 | 2020-09-03 | Pulling device for impeller positioning pin of wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213616438U true CN213616438U (en) | 2021-07-06 |
Family
ID=76646523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021898348.4U Active CN213616438U (en) | 2020-09-03 | 2020-09-03 | Pulling device for impeller positioning pin of wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213616438U (en) |
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2020
- 2020-09-03 CN CN202021898348.4U patent/CN213616438U/en active Active
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