CN202807092U - Screw propeller connecting device - Google Patents
Screw propeller connecting device Download PDFInfo
- Publication number
- CN202807092U CN202807092U CN 201220319231 CN201220319231U CN202807092U CN 202807092 U CN202807092 U CN 202807092U CN 201220319231 CN201220319231 CN 201220319231 CN 201220319231 U CN201220319231 U CN 201220319231U CN 202807092 U CN202807092 U CN 202807092U
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- CN
- China
- Prior art keywords
- screw propeller
- flange
- connecting device
- utility
- model
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- 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 provides a screw propeller connecting device. The screw propeller connecting device provided by the utility model comprises a crankshaft; and a flange plate is arranged at one end of the crankshaft and is in drive connection with a screw propeller. The flange plate and the screw propeller are connected and fixed together so as to avoid the backlash of spline connection and reduce the vibration of a flight vehicle; and the screw propeller connecting device has the advantages of convenience in installation, simple structure, convenience in machining, low manufacture cost and transmission of greater torque.
Description
Technical field
The utility model relates to the aviation piston engine field, especially, relates to a kind of screw propeller connecting device.
Background technology
The aircraft that aviation piston engine is housed is wanted normal flight, must be equipped with the screw propeller that a tool is suitable for it.When engine operation, engine-mounted screw propeller rotates thereupon, produces pulling force forward, makes aircraft flight.
The connecting mode of aviation piston engine and screw propeller generally adopts the invoice serration connecting mode now, and namely the piston engine output shaft is designed to outer invoice serration, and propeller hub is designed to interior invoice serration.During installation, the interior invoice serration on the propeller hub is nested on the outer invoice serration of engine output shaft, and uses nut screwing clamping.
The invoice serration processing technology is complicated, needs to adopt dedicated tool to process involute gear profile, and front current cost drops into higher; The power (being moment of torsion) that transmits is limited, as transmitting larger power (being moment of torsion), then need to strengthen the diameter of engine output shaft and propeller hub, this is with regard to the corresponding weight that has increased driving engine and screw propeller, the invoice serration tolerance clearance is larger, this has aggravated the vibration of aircraft with regard to the corresponding variable quantity that has increased the barycenter of driving engine and screw propeller.
The utility model content
The utility model purpose is to provide a kind of screw propeller connecting device, connects the larger technical matters of vibration to solve invoice serration.
For achieving the above object, the utility model provides a kind of screw propeller connecting device, comprises bent axle, and an end of bent axle is provided with flange, and flange drives with screw propeller and is connected.
Further, the circumferencial direction of flange is provided with connecting bore.
Further, be provided with the flange lining in the connecting bore.
Further, the flange lining comprises stopper section and the axle hole that is connected with the stopper section.
Further, the excircle of axle hole is stepped, comprises the first ladder section and second-order bench, and an end of the first ladder section is connected with the stopper section, and with the connecting bore interference fit.
Further, on the endoporus of flange lining pilot hole is set.
Further, be provided with screw thread in the pilot hole.
Further, the edge of pilot hole is provided with guide angle.
Further, bent axle and flange are one-body molded.
Further, connecting bore is a plurality of.
The utlity model has following beneficial effect:
Be connected with screw propeller by flange, be fixed together, avoided making splined backlash, reduced the vibration of aircraft, easy for installation, simple in structure, be convenient to processing, low cost of manufacture is transmitted larger moment of torsion.
Except purpose described above, feature and advantage, the utility model also has other purpose, feature and advantage.The below is described in further detail the utility model with reference to figure.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 looks scheme drawing according to the master that the flange of flange lining is installed of the present utility model;
Fig. 2 is the cross-sectional schematic that the flange of flange lining is installed according to of the present utility model;
Fig. 3 is that the master according to flange of the present utility model looks scheme drawing;
Fig. 4 is the cross-sectional schematic according to flange of the present utility model;
Fig. 5 is the axle side scheme drawing according to flange lining of the present utility model; And
Fig. 6 is the cross-sectional schematic according to flange lining of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Referring to Fig. 1 to Fig. 4, according to screw propeller connecting device of the present utility model, comprising: bent axle 10, an end of bent axle 10 is provided with flange 20, and flange 20 drives with screw propeller and is connected.Be connected with screw propeller by flange 20, be fixed together, avoided making splined backlash, reduced the vibration of aircraft, easy for installation, simple in structure, be convenient to processing, low cost of manufacture is transmitted larger moment of torsion.
Referring to Fig. 1 to Fig. 4, the circumferencial direction of flange 20 is provided with connecting bore 21.Connecting bore 21 is a plurality of.
Referring to Fig. 5 and Fig. 6, be provided with flange lining 30 in the connecting bore 21.Flange lining 30 comprises stopper section 31 and the axle hole 32 that is connected with stopper section 31.The excircle of axle hole 32 is stepped, comprises that an end of the first ladder section 321 and second-order bench 322, the first ladder sections 321 is connected with stopper section 31, and with connecting bore 21 interference fit.Pilot hole 33 is set on the endoporus of flange lining 30.Be provided with screw thread in the pilot hole 33.The edge of pilot hole 33 is provided with guide angle.
Referring to Fig. 1 to Fig. 4, bent axle 10 is one-body molded with flange 20.
Bent axle 10 front portions are provided with flange 20, preferably, are connecting bore 21 along distributing 6 flange lining 30 mounting holes of even circumferential on the flange 20; 6 flange linings 30 are two-stage step lining, wherein the first ladder section 321 is passed through interference fit for the mounting hole of the flange lining 30 on the φ 19.05mm face of cylinder and the flange 20, stopper section 31 abuts against the end face of flange 10, second-order bench 322 is the face of cylinder of φ 19.03mm, pass through free-running fit with the mounting hole of flange lining 30 on the screw propeller flange 20, flange lining 30 plays a part the setting screw oar when screw propeller is installed, its endoporus is the aviation negative thread, and hold with being screwed into of flange lining bolt and be designed with the pilot hole of φ 13.4mm and 90 ° guiding chamfering connecting screw propeller, be convenient to connect being screwed into of screw propeller and flange lining bolt.Flange 20 and 6 flange linings 30 are the elements that transmit the engine operation moment of torsion and bear the screw propeller pulling force.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
Be connected with screw propeller by flange 20, be fixed together, avoided making splined backlash, reduced the vibration of aircraft, easy for installation, simple in structure, be convenient to processing, low cost of manufacture is transmitted larger moment of torsion.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. a screw propeller connecting device is characterized in that, comprising:
Bent axle (10), an end of described bent axle (10) is provided with flange (20), and described flange (20) drives with screw propeller and is connected.
2. screw propeller connecting device according to claim 1 is characterized in that, the circumferencial direction of described flange (20) is provided with connecting bore (21).
3. screw propeller connecting device according to claim 2 is characterized in that, is provided with flange lining (30) in the described connecting bore (21).
4. screw propeller connecting device according to claim 3 is characterized in that, described flange lining (30) comprises stopper section (31) and the axle hole (32) that is connected with described stopper section (31).
5. screw propeller connecting device according to claim 4, it is characterized in that, the excircle of described axle hole (32) is stepped, comprise the first ladder section (321) and second-order bench (322), one end of described the first ladder section (321) is connected with described stopper section (31), and with described connecting bore (21) interference fit.
6. screw propeller connecting device according to claim 3 is characterized in that, pilot hole (33) is set on the endoporus of described flange lining (30).
7. screw propeller connecting device according to claim 6 is characterized in that, described pilot hole is provided with screw thread in (33).
8. screw propeller connecting device according to claim 6 is characterized in that, the edge of described pilot hole (33) is provided with guide angle.
9. screw propeller connecting device according to claim 1 is characterized in that, described bent axle (10) is one-body molded with described flange (20).
10. screw propeller connecting device according to claim 2 is characterized in that, described connecting bore (21) is a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220319231 CN202807092U (en) | 2012-07-03 | 2012-07-03 | Screw propeller connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220319231 CN202807092U (en) | 2012-07-03 | 2012-07-03 | Screw propeller connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202807092U true CN202807092U (en) | 2013-03-20 |
Family
ID=47866017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220319231 Expired - Fee Related CN202807092U (en) | 2012-07-03 | 2012-07-03 | Screw propeller connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202807092U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398812A (en) * | 2013-07-25 | 2013-11-20 | 中国航天空气动力技术研究院 | Propeller coaxial force measuring device |
| CN104047728A (en) * | 2014-06-20 | 2014-09-17 | 中国南方航空工业(集团)有限公司 | Power shaft locking assembly and turboshaft aero-engine comprising same |
-
2012
- 2012-07-03 CN CN 201220319231 patent/CN202807092U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398812A (en) * | 2013-07-25 | 2013-11-20 | 中国航天空气动力技术研究院 | Propeller coaxial force measuring device |
| CN103398812B (en) * | 2013-07-25 | 2015-01-07 | 中国航天空气动力技术研究院 | Propeller coaxial force measuring device |
| CN104047728A (en) * | 2014-06-20 | 2014-09-17 | 中国南方航空工业(集团)有限公司 | Power shaft locking assembly and turboshaft aero-engine comprising same |
| CN104047728B (en) * | 2014-06-20 | 2016-06-15 | 中国南方航空工业(集团)有限公司 | Power shaft stop assembly and there is its whirlpool axle aero-engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee after: China Hangfa South Industrial Co. Ltd. Address before: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee before: China Southern Airlines Industry (Group) Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20200703 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |