CN203248481U - Expansion pin for fixing propeller blade - Google Patents
Expansion pin for fixing propeller blade Download PDFInfo
- Publication number
- CN203248481U CN203248481U CN 201320223298 CN201320223298U CN203248481U CN 203248481 U CN203248481 U CN 203248481U CN 201320223298 CN201320223298 CN 201320223298 CN 201320223298 U CN201320223298 U CN 201320223298U CN 203248481 U CN203248481 U CN 203248481U
- Authority
- CN
- China
- Prior art keywords
- expansion
- propeller blade
- expansion pin
- fixing
- nut
- 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
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Abstract
The utility model belongs to the field of aviation machinery, and particularly relates to an expansion pin for fixing a propeller blade. The expansion pin for fixing the propeller blade comprises two expansion screws which are in butt joint. Each expansion screw comprises a nut (1), an expansion sleeve (2) and a taper-shaped screw rod (3). The expansion pin for fixing the propeller blade is simple in structure, good in practicability, capable of fixing the propeller blade conveniently, and convenient to disassemble.
Description
Technical field
The utility model belongs to the aviation machine field, particularly relates to a kind of expansion pin for fixed blades.
Background technique
Fixedly being one and passing through axle with the slurry root by what matched in the hole of blade, be connected by the hole by on axle and fixed plates two ends, its shortcoming is: the pore volume that passes through on the fixed plate is subject to collide with by axle and produces damage, cause precise decreasing, scrap in the hole of passing through by axle and fixed plate, when dismantling blade in addition, be not easy to very much dismounting.
Summary of the invention
Goal of the invention: a kind of expansion pin for fixed blades is provided, can be so that dismounting and fixed blades.
Technological scheme: a kind of expansion pin for fixed blades, be symplex structure, comprise the setscrew of two docking.
Described setscrew comprises nut 1, expansion sleeve 2 and conical screw 3.
The shape of the shape of described nut 1 and expansion sleeve 2 adapts.
Nut 1 and expansion sleeve 2 and conical screw 3 are threaded connection.
Beneficial effect: the utility model is simple in structure, and practicability is good, can easily blade be fixed, and convenient disassembly.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model nut structure schematic representation;
Fig. 3 is the utility model expansion sleeve structural representation;
Fig. 4 is the utility model conical screw structural representation.
Embodiment
Below in conjunction with accompanying drawing the utility model is done to describe in further detail, seen also Fig. 1 to Fig. 4.
A kind of expansion pin for fixed blades is symplex structure, comprises the setscrew of two docking.
Described setscrew comprises nut 1, expansion sleeve 2 and conical screw 3.
The shape of the shape of described nut 1 and expansion sleeve 2 adapts.It is convenient to insert when external diameter unanimously can guarantee fixed blades like this.
Nut 1 and expansion sleeve 2 and conical screw 3 are threaded connection.
By rotating nut 1, expansion sleeve 2 is expanded outwardly, be connected with fixed plate and reach fixation.
The utility model adopts the good material of rigidity to make, in order to bear enough stress.
The utility model is simple in structure, and practicability is good, can easily blade be fixed, and convenient disassembly.
Claims (4)
1. an expansion pin that is used for fixed blades is characterized in that, is symplex structure, comprises the setscrew of two docking.
2. a kind of expansion pin for fixed blades according to claim 1 is characterized in that, described setscrew comprises nut [1], expansion sleeve [2] and conical screw [3].
3. a kind of expansion pin for fixed blades according to claim 1 is characterized in that, the shape of the shape of described nut [1] and expansion sleeve [2] adapts.
4. a kind of expansion pin for fixed blades according to claim 3 is characterized in that, nut [1] and expansion sleeve [2] and conical screw [3] are threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320223298 CN203248481U (en) | 2013-04-27 | 2013-04-27 | Expansion pin for fixing propeller blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320223298 CN203248481U (en) | 2013-04-27 | 2013-04-27 | Expansion pin for fixing propeller blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203248481U true CN203248481U (en) | 2013-10-23 |
Family
ID=49374921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320223298 Expired - Fee Related CN203248481U (en) | 2013-04-27 | 2013-04-27 | Expansion pin for fixing propeller blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203248481U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911507A (en) * | 2020-07-13 | 2020-11-10 | 航天科工空间工程发展有限公司 | Adjustable positioning pin device |
-
2013
- 2013-04-27 CN CN 201320223298 patent/CN203248481U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911507A (en) * | 2020-07-13 | 2020-11-10 | 航天科工空间工程发展有限公司 | Adjustable positioning pin device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131023 Termination date: 20160427 |