CN211731798U - Stress-reducing weight-reducing anti-fatigue airplane wheel - Google Patents
Stress-reducing weight-reducing anti-fatigue airplane wheel Download PDFInfo
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- CN211731798U CN211731798U CN202020311022.0U CN202020311022U CN211731798U CN 211731798 U CN211731798 U CN 211731798U CN 202020311022 U CN202020311022 U CN 202020311022U CN 211731798 U CN211731798 U CN 211731798U
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- weight
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- web plate
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- stress
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
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Abstract
The utility model discloses a stress of falling subtracts heavy antifatigue wheel, its characterized in that: comprises a hub and a web plate arranged in the middle of the hub; the web plate is provided with a weight-reducing assembly hole penetrating through two side faces of the web plate; a plurality of weight-reducing assembling holes are uniformly arranged around the axis of the hub; a counterweight block for supporting the inner wall is arranged in the weight-reducing assembly hole; the shape of the balancing weight is matched with the outline of the weight-reducing assembly hole, and the outer wall of the balancing weight is attached to the inner wall of the weight-reducing assembly hole; the balancing weight is hollow in the middle. The utility model discloses a subtract the pouring weight and support subtracting heavy pilot hole, reduce wheel hub's stress amplitude, improve wheel hub's fatigue performance, prevent that wheel hub from crackle.
Description
Technical Field
The utility model relates to an aircraft wheel hub field especially relates to a stress of falling subtracts heavy antifatigue wheel.
Background
With the development of science and technology, the performance requirements of airplanes are higher and higher, such as load weight and the like. The more loads can be carried by the airplane, the stronger the transport capacity of the military airplane is, the more weapons are carried, and the higher the success rate of the military airplane is; for civil aircraft, the more people or goods are carried, the better the economic performance is. Correspondingly, the requirements of airplane parts are also correspondingly improved, when the load is higher, the load borne by the airplane wheel is also increased, how to reduce the weight of the airplane wheel and increase the bearing capacity of the airplane wheel is improved, and the universal research problem is solved.
In recent years, on the surface of computer aided design and analysis, finite element strength calculation and photoelastic strength analysis, the wheel has high stress under load conditions, and the stress is generally: the rim, the wheel web relief hole perimeter, the web to hub interface, etc.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a reduce holistic average stress of wheel, make the material make full use of wheel, increase the bearing capacity and the fatigue performance of wheel to reduce the weight of wheel, improve the stress of falling of the operation level of aircraft and economic performance and subtract heavy anti-fatigue wheel.
Realize the utility model discloses the technical scheme of purpose is: the utility model provides a stress-reducing subtracts heavy antifatigue wheel which characterized in that: comprises a hub and a web plate arranged in the middle of the hub; the web plate is provided with a weight-reducing assembly hole penetrating through two side faces of the web plate; a plurality of weight-reducing assembling holes are uniformly arranged around the axis of the hub; a counterweight block for supporting the inner wall is arranged in the weight-reducing assembly hole; the shape of the balancing weight is matched with the outline of the weight-reducing assembly hole, and the outer wall of the balancing weight is attached to the inner wall of the weight-reducing assembly hole; the balancing weight is hollow in the middle.
And the weight-reducing assembly holes of the web plates are in interference fit with the balancing weights.
The assembly stress of the weight block of the web plate in interference fit with the weight-reducing assembly hole is within the yield limit range of the weight block material.
The balancing weight of web is annular.
The projection of the balancing weight of the web plate on the vertical plane is triangular, and each end corner is a round corner.
The projection of the balancing weight of the web plate on the vertical plane is in an isosceles triangle shape, and the vertex angle faces to the axis of the hub.
By adopting the technical scheme, the utility model discloses following beneficial effect has: the utility model discloses the structure is ingenious, the prestressing force when subtracting heavy pilot hole periphery and subtracting the heavy piece formation assembly of web, when the aircraft bears aircraft load and tire inflation pressure, subtract the prestressing force that heavy pilot hole periphery bore and subtract the heavy piece and aircraft load and tire inflation pressure, prestressing force offsets with aircraft load and tire inflation pressure, wheel operating stress reduces, wheel hub bearing capacity rises, support subtracting the heavy pilot hole through subtracting the heavy piece, reduce wheel hub's stress amplitude, improve wheel hub's fatigue performance, prevent that wheel hub from crackle.
Drawings
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is given in conjunction with the accompanying drawings, in which
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the present invention with the counterweight removed;
fig. 3 is a schematic structural diagram of the counterweight of the present invention.
The reference numbers are: wheel hub 1, web 2, subtract heavy pilot hole 2-1, balancing weight 3.
Detailed Description
Example one
Referring to fig. 1 to 3, the stress-reducing, weight-reducing and fatigue-resisting wheel of the present embodiment includes a wheel hub 1 and a web 2 disposed in the middle of the wheel hub 1. The web plate 2 is provided with a weight-reducing assembly hole 2-1 which penetrates through two side surfaces of the web plate 1-1. A plurality of weight-reducing assembling holes 2-1 are uniformly arranged around the axis of the hub 1. A balancing weight 3 for supporting the inner wall is arranged in the weight-reducing assembly hole 2-1. The shape of the balancing weight 3 is matched with the outline of the weight-reducing assembly hole 2-1, and the outer wall of the balancing weight 3 is attached to the inner wall of the weight-reducing assembly hole 2-1. The middle part of the balancing weight 3 is hollow.
In the embodiment, the weight reducing block 3 is used for supporting the weight reducing assembly hole 2-1, so that the stress amplitude of the wheel hub 1 is reduced, the fatigue performance of the wheel hub 1 is improved, the wheel hub 1 is prevented from cracking, the stress at the position (in a working state) of the weight reducing assembly hole 2-1 of the airplane wheel can be reduced by 50%, the weight reducing airplane wheel can be reduced by 10%, and the fatigue performance of the airplane wheel can be improved by 10%. In the event of a wheel failure, the weight reducing blocks 3 will deform or fail prematurely, protecting the hub 1 and indicating that the hub 1 needs inspection. Under the same loading requirement of the wheel, the thickness of the web 2 can be reduced, so that the weight of the wheel is reduced, and the fatigue performance of the wheel is increased. At the same weight requirement of the wheel, the reducible weight is added to the otherwise weak points, thereby increasing the fatigue performance and reliability of the wheel.
In the embodiment, the weight-reducing assembling hole 2-1 of the web plate 2 is in interference fit with the balancing weight 3, the periphery of the weight-reducing assembling hole 2-1 and the weight-reducing block 3 form prestress during assembling, when the airplane wheel bears airplane load and tire inflation pressure, the periphery of the weight-reducing assembling hole 2-1 bears the prestress of the weight-reducing block 3, the airplane load and the tire inflation pressure are counteracted, the working stress of the airplane wheel is reduced, and the bearing capacity of the hub 1 is improved. The hub 2 and the weight reducing block 3 are installed in a hot loading mode, namely the weight reducing block 3 is installed after the hub 1 is heated and expanded.
In the embodiment, the assembly stress of the weight block 3 of the web 2 in interference fit with the weight-reducing assembly hole 2-1 is within the material yield limit of the weight block 3. The stress of the hub 1 and the weight-reducing blocks 3 after operation should be within the material yield limit. The assembly stress and the working stress of the hub 1 and the weight reducing blocks 3 are in a low stress state, namely, the fatigue stress value is reduced. The matching tolerance of the weight block 3 of the web plate 2 and the weight-reducing assembly hole 2-1 is H8/u 7.
In the present embodiment, the weight 3 of the web 2 is annular. The projection of the counterweight block 3 of the web 2 on a vertical plane is triangular, and each end corner is a round corner. The projection of the balancing weight 3 of the web 2 on the vertical plane is in the shape of an isosceles triangle, and the vertex angle faces the axis of the hub 1.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. The utility model provides a stress-reducing subtracts heavy antifatigue wheel which characterized in that: comprises a hub (1) and a web plate (2) arranged in the middle of the hub (1); the web plate (2) is provided with a weight-reducing assembly hole (2-1) penetrating through two side faces of the web plate (2); a plurality of weight-reducing assembling holes (2-1) are uniformly arranged around the axis of the hub (1); a balancing weight (3) for supporting the inner wall is arranged in the weight-reducing assembly hole (2-1); the shape of the balancing weight (3) is matched with the outline of the weight-reducing assembly hole (2-1), and the outer wall of the balancing weight (3) is attached to the inner wall of the weight-reducing assembly hole (2-1); the middle part of the balancing weight (3) is hollow.
2. A reduced stress weight fatigue resistant wheel as claimed in claim 1 wherein: and the weight-reducing assembly holes (2-1) of the web plate (2) are in interference fit with the balancing weight (3).
3. A reduced stress weight fatigue resistant wheel as claimed in claim 2 wherein: the assembly stress of the weight block (3) of the web plate (2) and the weight-reducing assembly hole (2-1) in interference fit is within the material yield limit range of the weight block (3).
4. A reduced stress weight fatigue resistant wheel as claimed in claim 1 wherein: the balancing weight (3) of the web plate (2) is annular.
5. A stress-reducing weight-losing fatigue-resistant wheel according to claim 1 or 4, characterized in that: the projection of the balancing weight (3) of the web plate (2) on a vertical plane is triangular, and each end corner is a round corner.
6. A reduced stress weight fatigue resistant wheel according to claim 5, wherein: the projection of the balancing weight (3) of the web plate (2) on the vertical plane is an isosceles triangle, and the vertex angle faces to the axis of the hub (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020311022.0U CN211731798U (en) | 2020-03-13 | 2020-03-13 | Stress-reducing weight-reducing anti-fatigue airplane wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020311022.0U CN211731798U (en) | 2020-03-13 | 2020-03-13 | Stress-reducing weight-reducing anti-fatigue airplane wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211731798U true CN211731798U (en) | 2020-10-23 |
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ID=72857539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020311022.0U Active CN211731798U (en) | 2020-03-13 | 2020-03-13 | Stress-reducing weight-reducing anti-fatigue airplane wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211731798U (en) |
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2020
- 2020-03-13 CN CN202020311022.0U patent/CN211731798U/en active Active
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