CN203627331U - Fan blade balancing clamp - Google Patents
Fan blade balancing clamp Download PDFInfo
- Publication number
- CN203627331U CN203627331U CN201320630302.8U CN201320630302U CN203627331U CN 203627331 U CN203627331 U CN 203627331U CN 201320630302 U CN201320630302 U CN 201320630302U CN 203627331 U CN203627331 U CN 203627331U
- Authority
- CN
- China
- Prior art keywords
- shaped body
- fan blade
- sides
- clamp
- teeth
- 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 - Lifetime
Links
- 210000000515 tooth Anatomy 0.000 claims description 22
- 238000006073 displacement reaction Methods 0.000 abstract description 5
- 210000004763 bicuspid Anatomy 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A fan blade balancing clamp is a U-shaped body structural component. Four teeth are punched on two side surfaces of the U shaped body, each side surface is provided with two teeth, and the four teeth face the bottom of the U-shaped body and bend toward the inner portion of the U shaped body to cross with each other to form a clamping opening. Intertooth space and angles between four teeth of the balancing clamp, particularly the gap between two teeth of two clamping jaws, are changed, and the space between two teeth is changed from having space into having negative space (have 0.2-0.5mm coincide portion), so that four clamping teeth of two surfaces are completely crossed and coincided, uniformity and reliability of processing are guaranteed, the problem of flying off and displacement of the balancing clamp is solved, and clamp force of the balancing clamp is increased.
Description
Technical field
The utility model relates to a kind of fastening device, relates in particular to a kind of fan blade balance clamp being used on radiator fans fan blade.
Background technique
Fan blade balance clamp is the counterweight part being installed on the fan page, and it is inhomogeneous that it plays the each leaf quality of correction fan blade self, can effectively offset the vibration that fan high-speed rotary produces.In the time of fan High Rotation Speed, due to the effect of centrifugal force, if fan blade balance clamp clamping force is inadequate, can causes the displacement of fan blade balance clamp or fly off.Fan blade balance clamp is generally U-shaped structure, and length, width are below 15mm, below material thickness 0.5mm.A kind of fan blade balance clamp of prior art is, in a side, two pawls are set; Another kind of fan blade balance clamp is to be all provided with pawl in both sides, and between cog has the gap of O-0.4mm, in the time of fan High Rotation Speed, because centrifugal action can cause balance clamp displacement or fly off.
Model utility content
The purpose of this utility model, exactly in order to address the above problem, provides a kind of novel fan blade balance clamp.
In order to achieve the above object, the utility model has adopted following technological scheme: a kind of fan blade balance clamp, for U-shaped body structure part, 4 pointed tooths are gone out respectively in two sides at U-shaped body, two of each sides, 4 pointed tooths, respectively towards U-shaped body bottom and respectively to the internal bend of U-shaped body, are staggered to form between two and clamp mouth.
Described four pointed tooths lay respectively at the both sides of two sides of U-shaped body, and profile of tooth is right-angled triangle, and one right angle side is connected with U-shaped body body as tooth root, and another right angle side is parallel with corresponding side.
In two sides of described U-shaped body, the opening of a side is narrower, and interdental space is also narrower, and the opening of another side is wider, and interdental space is also wider, and four pointed tooths are separately positioned on the opening of two sides, forms inside and outside staggered.
Fan blade balance clamp of the present utility model is by changing the size of balance clamp and the degree of crook of pointed tooth, mainly two spaces between fastening teeth bicuspid, be negative clearance (having 0.2-0.5mm intersection) from there being space to change into space between bicuspid between bicuspid, 4, two sides fastening teeth interlocks completely and overlaps; So just guarantee conformity and the reliability of processing, solved balance clamp and flown off and the problem of displacement, improved the clamping force of balance clamp simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of facing of the utility model fan blade balance clamp;
Fig. 2 is the right TV structure schematic diagram of the balance clamp of fan blade shown in Fig. 1;
Fig. 3 is the plan structure schematic diagram of the balance clamp of fan blade shown in Fig. 1;
Fig. 4 is the unfolded drawing of the balance clamp of fan blade shown in Fig. 1.
Concrete form of implementation
Coordinate referring to Fig. 1, coordinate referring to Fig. 2, Fig. 3, Fig. 4, the utility model fan blade balance clamp, for U-shaped body structure part, 4 pointed tooths 2,3,4,5 are gone out respectively in two sides at U-shaped body 1, two of each sides, 4 pointed tooths, respectively towards U-shaped body bottom and respectively to the internal bend of u body, are staggered to form between two and clamp mouth.
Above-mentioned four pointed tooths lay respectively at the both sides of two sides of U-shaped body, and profile of tooth is right-angled triangle, and one right angle side is connected with u body body as tooth root, and another right angle side is parallel with corresponding side.
In two sides of above-mentioned U-shaped body, the opening of a side is narrower, and interdental space is also narrower, and the opening of another side is wider, and interdental space is also wider, and four pointed tooths are separately positioned on the opening of two sides, forms inside and outside staggered.
Original balance clamp is because four, two sides tooth is all symmetrical between two, therefore during fabrication, the gap minimum of crown is only to accomplish 0 gap, because the balance clamp of having suppressed also needs tempering heat treatment, after heat treatment, two backlashes are understood resiliences and are not reached within the scope of tolerance O-0.4mm, more than some gap can reach 0.6mm, in actual use, to the slim fan blade of the following thickness of 2mm, the practical risk that balance clamp has displacement or flies off.
Balance clamp of the present utility model is because 4 of both sides tooth does not overlap, and be staggered, so during fabrication, can directly both sides tooth pressure extremely be overlapped, upper and lower surface tooth is staggered, alternating quantity can, according to the amount of deformation after checking heat treatment, be adjusted between cog size in balance clamp moulding, finally guarantees size requirement.
Claims (3)
1. a fan blade balance clamp, is U-shaped body structure part, it is characterized in that: 4 pointed tooths are gone out respectively in two sides at U-shaped body, two of each sides, and 4 pointed tooths, respectively towards U-shaped body bottom and respectively to the internal bend of U-shaped body, are staggered to form between two and clamp mouth.
2. fan blade balance clamp as claimed in claim 1, it is characterized in that: described four pointed tooths lay respectively at the both sides of two sides of U-shaped body, profile of tooth is right-angled triangle, and one right angle side is connected with U-shaped body body as tooth root, and another right angle side is parallel with corresponding side.
3. fan blade balance clamp as claimed in claim 2, it is characterized in that: in two sides of described U-shaped body, the opening of a side is narrower, interdental space is also narrower, the opening of another side is wider, interdental space is also wider, and four pointed tooths are separately positioned on the opening of two sides, forms inside and outside staggered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320630302.8U CN203627331U (en) | 2013-10-12 | 2013-10-12 | Fan blade balancing clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320630302.8U CN203627331U (en) | 2013-10-12 | 2013-10-12 | Fan blade balancing clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203627331U true CN203627331U (en) | 2014-06-04 |
Family
ID=50813813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320630302.8U Expired - Lifetime CN203627331U (en) | 2013-10-12 | 2013-10-12 | Fan blade balancing clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203627331U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106611553A (en) * | 2017-03-06 | 2017-05-03 | 西北工业大学 | Loading device for sudden unbalance of aeroengine experimental instrument |
-
2013
- 2013-10-12 CN CN201320630302.8U patent/CN203627331U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106611553A (en) * | 2017-03-06 | 2017-05-03 | 西北工业大学 | Loading device for sudden unbalance of aeroengine experimental instrument |
| CN106611553B (en) * | 2017-03-06 | 2019-04-19 | 西北工业大学 | The loading device of aero-engine tester sudden unbalance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |
|
| CX01 | Expiry of patent term |