CN212155043U - Safety mechanism of fan - Google Patents
Safety mechanism of fan Download PDFInfo
- Publication number
- CN212155043U CN212155043U CN202020533668.3U CN202020533668U CN212155043U CN 212155043 U CN212155043 U CN 212155043U CN 202020533668 U CN202020533668 U CN 202020533668U CN 212155043 U CN212155043 U CN 212155043U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- paddle
- moving block
- rotating speed
- safety mechanism
- 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
Links
- 238000010248 power generation Methods 0.000 claims abstract description 12
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Wind Motors (AREA)
Abstract
The utility model relates to a safety mechanism of fan relates to wind power equipment technical field, and it is too big to have solved the wind-force among the prior art, will make the rotational speed of paddle improve, and the paddle rotational speed exceeds rated revolution, will cause the technical problem of certain degree of damage to wind power generation equipment. The technical characteristics are that the device comprises a power generation device which is fixedly connected with one end of a rotating shaft; the paddle is fixedly connected with the other end of the rotating shaft; the fixing frame is fixedly arranged above the ground, and the upper part of the fixing frame is rotationally connected with the rotating shaft; wherein, the rotating shaft is provided with a tensioning device, and the tensioning device is provided with a moving block; when the rotating speed of the paddle exceeds the rated rotating speed, the moving block is attached to the fixed frame. The rotating speed of the rotating shaft is not greater than the rated rotating speed, and the safety of the wind power generation equipment is guaranteed.
Description
Technical Field
The utility model relates to a wind power equipment technical field, in particular to safety mechanism of fan.
Background
Wind energy is a low-density energy source and has the characteristics of instability and randomness. Wind power generation equipment arranged outdoors needs to generate electricity by means of wind energy, but if the wind power is too large, the rotating speed of the blades is increased, and the rotating speed of the blades exceeds the rated rotating speed, so that the wind power generation equipment is damaged to a certain extent.
SUMMERY OF THE UTILITY MODEL
The utility model discloses it is too big to solve the wind-force among the prior art, will make the rotational speed of paddle improve, and the paddle rotational speed exceeds rated revolution, will cause the technical problem of the damage of certain degree to wind power generation equipment, provides a safety mechanism of fan.
In order to solve the technical problem, the technical scheme of the utility model is specifically as follows:
a safety mechanism for a blower comprising:
the power generation equipment is fixedly connected with one end of the rotating shaft;
the paddle is fixedly connected with the other end of the rotating shaft;
the fixing frame is fixedly arranged above the ground, and the upper part of the fixing frame is rotationally connected with the rotating shaft;
wherein, the rotating shaft is provided with a tensioning device, and the tensioning device is provided with a moving block;
when the rotating speed of the paddle exceeds the rated rotating speed, the moving block is attached to the fixed frame.
Furthermore, the paddle is fixedly connected with the other end of the rotating shaft through a tensioning sleeve.
Furthermore, a tensioning space is arranged above the fixing frame, and a tensioning device is arranged in the tensioning space.
Further, tight device that rises includes:
the guide plate is fixedly installed on the rotating shaft in a uniformly distributed mode, the circumference of at least six guide plates is perpendicular to the center line of the rotating shaft, flanges are further arranged at two ends of the guide plate, and a first hook is fixedly arranged on one side, close to the rotating shaft, of the guide plate.
The moving block is in sliding fit with the guide plate, and a second hook is fixedly arranged on one side, facing the rotating shaft, of the moving block;
and two ends of the extension spring are respectively connected with the first hook and the second hook in a hanging manner.
The utility model discloses following beneficial effect has:
the utility model discloses a safety mechanism of fan, through setting up the tight device that rises, when the rotational speed of paddle exceeded rated revolution, the pulling force of extension spring and with the mount laminating will be overcome to the movable block on the tight device that rises, the movable block produces frictional force with the mount, and then the countershaft speed reduction, and the rotational speed of final assurance pivot can not be greater than rated revolution, has guaranteed wind power generation equipment's safety.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural view of a safety mechanism of a fan according to the present invention;
fig. 2 is a schematic view of the movable block and the guide plate of the safety mechanism of the fan according to the present invention.
The reference numerals in the figures denote:
1. a rotating shaft; 2. a fixed mount; 3. a tensioning device; 301. a moving block; 302. a guide plate; 303. an extension spring; 4. a tensioning space; 5. a paddle; 6. and a tensioning sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 and 2, a safety mechanism of a blower includes:
the power generation equipment is fixedly connected with one end of the rotating shaft 1;
the paddle 5 is fixedly connected with the other end of the rotating shaft 1;
the fixing frame 2 is fixedly arranged above the ground, and the upper part of the fixing frame 2 is rotationally connected with the rotating shaft 1;
wherein, the rotating shaft 1 is provided with a tension device 3, and the tension device 3 is provided with a moving block 301;
when the rotating speed of the paddle 5 exceeds the rated rotating speed, the moving block 301 is attached to the fixed frame 2.
The working principle is as follows: the paddle 5 is under the action of wind power, the paddle 5 drives the rotating shaft 1 and the tension device 3 to rotate together, when external wind power is too large, the rotating speed of the paddle 5 is correspondingly increased, further, the rotating speed of the rotating shaft 1 fixedly connected with the paddle 5 is too large, and exceeds the rated rotating speed, at the moment, the tension device 3 rotating together with the rotating shaft 1 also has a high rotating speed, and exceeds the rated rotating speed of the rotating shaft 1, the moving block 301 on the tension device 3 slides and is attached to the fixing frame 2, certain friction resistance is generated on the rotating shaft 1, the friction resistance is equivalent to the action of a brake pad, finally, the rotating speed of the rotating shaft 1 is forced to be reduced, the rotating speed of the rotating shaft 1 is enabled to be within the rated rotating speed, and normal use of the wind power generation equipment is ensured.
The paddle 5 is fixedly connected with the other end of the rotating shaft 1 through the tensioning sleeve 6.
The working principle is as follows: the contact surface of the tensioning sleeve 6 is large, and the inner surface and the outer surface of the tensioning sleeve 6 are respectively attached to the circumferential surface of the rotating shaft 1 and the inner surface of the paddle 5, so that the reliable fastening of the paddle 5 and the rotating shaft 1 is ensured, and the tensioning sleeve is suitable for the external severe environment.
A tensioning space 4 is arranged above the fixing frame 2, and a tensioning device 3 is arranged in the tensioning space 4.
The tensioning device 3 comprises:
the guide plate 302, six at least guide plate 302 circumference equipartitions fixed mounting are on pivot 1, and the central line of guide plate 302 is perpendicular with the central line of pivot 1, and the both ends of guide plate 302 still are provided with the flange, are equipped with first couple in the fixed one side that is close to the pivot of guide plate 302.
The moving block 301 is matched with the guide plate 302 in a sliding mode, and a second hook is fixedly arranged on one side, facing the rotating shaft 1, of the moving block 301;
the two ends of the extension spring 303 are respectively connected with the first hook and the second hook in a hanging mode.
The working principle is as follows: when the rotating speed of the rotating shaft 1 is lower than the rated rotating speed, the extension spring 303 exerts a pulling force on the moving block 301, and even if the moving block 302 generates a certain sliding on the guide plate 302, the moving block 302 cannot be attached to the fixed frame 2, so that the normal rotation of the paddle 5 and the rotating shaft 1 is ensured; when the rotating speed of the rotating shaft 1 is greater than the rated rotating speed, the moving block 301 moves towards the direction of the fixing frame 2 along the guide plate 302 and is attached to the fixing frame 2 to generate friction force, and under the action of the friction force, the rotating speed of the rotating shaft 1 is reduced, so that the rotating speed of the rotating shaft 1 is finally within the rated rotating speed, and the normal use of the wind power generation equipment is ensured.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (4)
1. A safety mechanism for a fan, comprising:
the power generation equipment is fixedly connected with one end of the rotating shaft (1);
the paddle (5), the paddle (5) is fixedly connected with the other end of the rotating shaft (1);
the fixing frame (2) is fixedly arranged above the ground, and the upper part of the fixing frame (2) is rotatably connected with the rotating shaft (1);
the rotating shaft (1) is provided with a tensioning device (3), and the tensioning device (3) is provided with a moving block (301);
when the rotating speed of the paddle (5) exceeds the rated rotating speed, the moving block (301) is attached to the fixed frame (2).
2. The safety mechanism of a blower fan as claimed in claim 1, characterized in that the blade (5) is fixedly connected with the other end of the rotating shaft (1) through a tensioning sleeve (6).
3. The safety mechanism of a blower according to claim 2, wherein a tension space (4) is provided above the fixing frame (2), and a tension device (3) is provided in the tension space (4).
4. A safety mechanism for fans according to claim 2, characterized in that the tensioning device (3) comprises:
the guide plates (302) are uniformly distributed on the circumference of at least six guide plates (302) and fixedly installed on the rotating shaft (1), the center line of each guide plate (302) is perpendicular to the center line of the rotating shaft (1), flanges are further arranged at two ends of each guide plate (302), and a first hook is fixedly arranged on one side, close to the rotating shaft (1), of each guide plate (302);
the moving block (301), the moving block (301) is in sliding fit with the guide plate (302), and a second hook is fixedly arranged on one side, facing the rotating shaft (1), of the moving block (301);
and two ends of the extension spring (303) are respectively connected with the first hook and the second hook in a hanging manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020533668.3U CN212155043U (en) | 2020-04-13 | 2020-04-13 | Safety mechanism of fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020533668.3U CN212155043U (en) | 2020-04-13 | 2020-04-13 | Safety mechanism of fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212155043U true CN212155043U (en) | 2020-12-15 |
Family
ID=73719025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020533668.3U Expired - Fee Related CN212155043U (en) | 2020-04-13 | 2020-04-13 | Safety mechanism of fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212155043U (en) |
-
2020
- 2020-04-13 CN CN202020533668.3U patent/CN212155043U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |