CN212250351U - Fan torque arm - Google Patents
Fan torque arm Download PDFInfo
- Publication number
- CN212250351U CN212250351U CN202020303388.3U CN202020303388U CN212250351U CN 212250351 U CN212250351 U CN 212250351U CN 202020303388 U CN202020303388 U CN 202020303388U CN 212250351 U CN212250351 U CN 212250351U
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- CN
- China
- Prior art keywords
- sun gear
- circle
- annular
- annular ring
- annular circle
- 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
- 238000010030 laminating Methods 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Fan torque arm, including the body, one side of body is provided with the first annular circle of fixing mutually with first sun gear, the opposite side of body be provided with the second annular circle of third sun gear looks fixing, second annular circle inner circle is the second sun gear, the outer lane of body is fixed with two archs, be provided with the round hole in the arch, still include round third annular circle, the third annular circle is fixed the tip of first annular circle, the third annular circle with laminating mutually of first sun gear or second sun gear. After having increased the annular circle of third, the annular circle of third can be fixed a position with the inner circle of first sun gear or outer lane cooperation, is different from the bolt and passes the through-hole and have very big surplus, and this kind of cooperation can laminate completely, like this the utility model discloses can accomplish the axiality very high with first sun gear.
Description
Technical Field
The invention relates to a fan, in particular to a fan torsion arm.
Background
The fan torsion arm is an important part on a fan gearbox and mainly plays a role in installing a speed changer in a fan cabin. The gearbox of the fan is generally composed of three-stage planetary gear speed change mechanisms, one end of a torsion arm is fixed with a sun gear of a first-stage planetary gear speed change mechanism, the inner ring of the torsion arm is provided with a sun gear of a second-stage planetary gear speed change mechanism, and the other end of the torsion arm is connected with a sun gear of a third-stage planetary gear speed change mechanism.
A through hole is formed in one end, fixed with a sun gear of a first-stage planetary gear speed change mechanism, of a traditional fan torsion arm, and then correspondingly, a screw hole is formed in the sun gear of the first-stage planetary gear speed change mechanism, and a bolt penetrates through the through hole and then is connected with the screw hole.
There is a problem with this structure in that there is a gap between the bolt and the through hole, and the presence of this gap makes it difficult for the sun gear of the second-stage planetary gear change mechanism to be coaxial with the sun gear of the first-stage planetary gear change mechanism, resulting in the occurrence of seizure during operation of the transmission, and there is a need for improvement.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a fan torsion arm which is coaxial with a sun gear of a first-stage planetary gear speed change mechanism.
The invention is realized by the following technical scheme: fan torque arm, including the body, one side of body is provided with the first annular circle of fixing mutually with first sun gear, the opposite side of body be provided with the second annular circle of third sun gear looks fixing, second annular circle inner circle is the second sun gear, the outer lane of body is fixed with two archs, be provided with the round hole in the arch, still include round third annular circle, the third annular circle is fixed the tip of first annular circle, the third annular circle with laminating mutually of first sun gear or second sun gear. After having increased the annular circle of third, the annular circle of third can be fixed a position with the inner circle of first sun gear or outer lane cooperation, is different from the bolt and passes the through-hole and have very big surplus, and this kind of cooperation can laminate completely, like this the utility model discloses can accomplish the axiality very high with first sun gear.
In the above technical solution, preferably, a circle of first through holes is arranged on the first annular ring.
In the above technical solution, preferably, the second annular ring is provided with a circle of first screw holes.
In the above technical solution, preferably, the body has a baffle therein, and a second through hole is provided in a middle position of the baffle.
In the above technical solution, preferably, the diameter of the first annular ring is larger than the diameter of the second annular ring.
The invention has the following beneficial effects: after having increased the annular circle of third, the annular circle of third can be fixed a position with the inner circle of first sun gear or outer lane cooperation, is different from the bolt and passes the through-hole and have very big surplus, and this kind of cooperation can laminate completely, like this the utility model discloses can accomplish the axiality very high with first sun gear.
Drawings
FIG. 1 is a schematic diagram of one embodiment of the present invention.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a schematic diagram of another embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the following detailed description and accompanying drawings:
referring to fig. 1 to 2, in embodiment 1, the fan torsion arm includes a body 1, a first annular ring 11 fixed to a first sun gear is disposed on one side of the body 1, and a ring of first through holes 1a is disposed on the first annular ring 11.
The other side of the body 1 is provided with a second annular ring 12 fixed with the third sun gear, and the second annular ring 12 is provided with a circle of first screw holes 1 b. The diameter of the first annular ring is greater than the diameter of the second annular ring.
The inner ring of the second annular ring 12 is a second sun gear 2, two bulges 3 are fixed on the outer ring of the body 1, the two bulges 3 are oppositely arranged, and round holes 31 are arranged on the bulges 3.
The body 1 is internally provided with a baffle 4, and a second through hole 41 is arranged in the middle of the baffle 4. The second through hole 41 is a stepped hole.
The sun gear further comprises a ring of third annular ring 13, the third annular ring 13 is fixed at the end of the first annular ring 11, the outer diameter of the third annular ring 13 is equal to the inner diameter of the first sun gear (not shown in the figure), the third annular ring is inserted into the inner ring of the first sun gear during installation, and the outer diameter of the third annular ring 13 is equal to the inner diameter of the first sun gear 11. After having increased the annular circle of third, the annular circle of third can be fixed a position with the inner circle cooperation of first sun gear, and it has very big surplus to be different from the bolt to pass the through-hole, and this kind of cooperation can laminate completely, like this the utility model discloses can accomplish the axiality very high with first sun gear.
Referring to fig. 3, embodiment 2, a fan torsion arm, the third annular ring 13 'is provided at the end of the first annular ring 11, and the third annular ring 13' has an inner diameter equal to the outer diameter of the first sun gear, as in embodiment 1. After having increased the third annular and enclosed, the third annular is enclosed and can is fixed a position with the outer lane cooperation of first sun gear, is different from the bolt and passes the through-hole and have very big surplus, and this kind of cooperation can laminate completely, like this the utility model discloses can accomplish the axiality very high with first sun gear.
Claims (5)
1. Fan torque arm, including the body, one side of body is provided with the first annular circle of fixing mutually with first sun gear, the opposite side of body is provided with the second annular circle of fixing mutually with third sun gear, second annular circle inner circle is the second sun gear, the outer lane of body is fixed with two archs, be provided with round hole, its characterized in that in the arch: the solar cell further comprises a third annular ring, the third annular ring is fixed at the end part of the first annular ring, and the third annular ring is attached to the first sun gear or the second sun gear.
2. The fan torsion arm of claim 1, wherein: a circle of first through holes are formed in the first annular ring.
3. The fan torsion arm of claim 1, wherein: and a circle of first screw holes are formed in the second annular ring.
4. The fan torsion arm of claim 1, wherein: the body is internally provided with a baffle, and a second through hole is formed in the middle of the baffle.
5. The fan torsion arm of claim 1, wherein: the diameter of the first annular ring is greater than the diameter of the second annular ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020303388.3U CN212250351U (en) | 2020-03-12 | 2020-03-12 | Fan torque arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020303388.3U CN212250351U (en) | 2020-03-12 | 2020-03-12 | Fan torque arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212250351U true CN212250351U (en) | 2020-12-29 |
Family
ID=73991034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020303388.3U Expired - Fee Related CN212250351U (en) | 2020-03-12 | 2020-03-12 | Fan torque arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212250351U (en) |
-
2020
- 2020-03-12 CN CN202020303388.3U patent/CN212250351U/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: 20201229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |