CN104369861A - Module structure for fixing tail wheel and machine body - Google Patents
Module structure for fixing tail wheel and machine body Download PDFInfo
- Publication number
- CN104369861A CN104369861A CN201310352783.5A CN201310352783A CN104369861A CN 104369861 A CN104369861 A CN 104369861A CN 201310352783 A CN201310352783 A CN 201310352783A CN 104369861 A CN104369861 A CN 104369861A
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- China
- Prior art keywords
- tail wheel
- tail
- mounting groove
- wheel unit
- wheel
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Abstract
The invention provides a module structure for fixing a tail wheel and a machine body. The module structure comprises the machine body, nuts, bolts, a reinforcing plate and a tail-wheel installing groove, wherein the tail-wheel installing groove is arranged at the tail part of the machine body; the nuts are embedded in the tail-wheel installing groove; the installing surface of a tail-wheel unit is fixedly connected with the lower end surface of the tail-wheel installing groove by the bolts and the nuts; and the reinforcing plate is arranged between the tail-wheel installing groove and the tail-wheel unit. The module structure provided by the invention has the advantages and the beneficial effects that after the tail-wheel unit is impacted or damaged, the normal work of the other parts of the tail part of the machine body is not influenced, the structure and the flying performance of a plane are not damaged after the tail-wheel unit fails and damaged, the maintenance is convenient when the tail-wheel unit goes wrong or is damaged, fast replacement also can be achieved, the directional control for the tail-wheel unit can be well realized, the problems of high cost and difficulty in manufacturing in the traditional mode are solved, and the potential safety hazard and unnecessary property loss are reduced.
Description
Technical field
The invention belongs to aerospace flight vehicle field, especially relates to the modular construction that a kind of tail wheel and fuselage are fixing.
Background technology
Existing tail wheel and fuselage are fixedly roughly divided into two kinds.
A kind of mode is directly directly connected with vertical tail lower surface by tail wheel, and such connection mode is worked as tail wheel and suffered that shock directly can cause the damage of afterbody, destroys structure and the airworthiness of aircraft.Also be not easy to maintenance after damage, this connection mode also should not be implemented when designing the steering structure of tail wheel simultaneously, well can not realize the control of directivity.
Another kind of mode is the rear lift linkage of design complete set complexity, and in state of flight, tail wheel is received in collection space, and before land, tail wheel ejects and lands by ejecting mechanism.Such cost design height manufactures difficulty, and simultaneously when going wrong, tail wheel can not eject, and aircraft can not normal landing.Cause very large potential safety hazard, and unnecessary property damage.
Summary of the invention
The problem that the invention will solve is the modular construction that a kind of tail wheel and fuselage are fixed.
For solving the problems of the technologies described above, the technical scheme that the invention adopts is:
The modular construction that a kind of tail wheel and fuselage are fixed, comprise fuselage, nut, bolt, brace panel, tail wheel mounting groove, the afterbody of described fuselage is provided with described tail wheel mounting groove, described nut is studded with in described tail wheel mounting groove, it is affixed that described screw bolt and nut is passed through in the attachment face of described tail wheel unit and the lower surface of described tail wheel mounting groove, and described brace panel is arranged in the middle of described tail wheel mounting groove and tail wheel unit.
Airframe afterbody generally adopts curved design, then there is larger installation difficulty as directly installed tail wheel unit on its curved surface.Also be difficult to ensure Joint strenght simultaneously.One tail wheel mounting groove is set, the lower surface of tail wheel mounting groove is installed tail wheel unit.There is larger horizontal mounting surface mounting portion, can firmly install tail wheel unit.Simultaneously in order to reduce the external impacts that tail wheel unit and afterbody tail wheel mounting groove are subject to when taking off or land, increase its service life.Spy arranges an interlayer and brace panel, is used for sharing and offset tail wheel unit and afterbody tail wheel mounting groove is subject to impulsive force.
Further, the attachment face shape of described tail wheel mounting groove, brace panel and tail wheel unit cooperatively interacts, and described brace panel and tail wheel unit are just arranged in described tail wheel mounting groove.
The attachment face of brace panel and tail wheel unit is lying in described tail wheel mounting groove completely, not merely can plays the object of accurately location tail wheel unit, and tail wheel unit, friction force between brace panel and tail wheel mounting groove can well be reduced.
Further, described brace panel is carbon fiber sheet.
Carbon fiber sheet is selected to be because carbon fibre materials has the advantages such as the tough not easy fracture of hardness macrostructure as brace panel.Especially be suitable as the parts strengthening intensity to use.Can well absorb the power that when taking off and land, airplane tail wheel unit is subject to.
Further, described carbon fiber sheet is 3 layers and is formed by stacking.
Multiple-structure is further gained in strength.
Further, described nut is anti-pawl nut.
The advantage that the invention has and good effect are:
1. tail wheel unit is clashed into or is not affected the normal work of other parts of afterbody after damaging.
2. break down and do not destroy structure and the airworthiness of aircraft after damaging.
3. go wrong or damage and be convenient to maintenance, also fast changeable.
4. pair tail wheel unit well can realize the control of directivity.
5. solve cost in traditional approach high, manufacture the problem of difficulty.
6. decrease potential safety hazard and unnecessary property damage.
Accompanying drawing explanation
Fig. 1 is the structural representation of the invention;
Fig. 2 is the mounting portion part sectional view of the invention.
In figure:
1, fuselage 2, tail wheel servomechanism cabin 3, nut
4, bolt 5, tail wheel unit 6, tail wheel mounting groove
7, brace panel
Detailed description of the invention
As illustrated in fig. 1 and 2, the modular construction that a kind of tail wheel and fuselage are fixed comprises fuselage 1, nut 3, bolt 4, brace panel 7, tail wheel mounting groove 6, the afterbody of described fuselage 1 is provided with described tail wheel mounting groove 6, described nut 3 is studded with in described tail wheel mounting groove 6, the attachment face of described tail wheel unit 5 and the lower surface of described tail wheel mounting groove 6 by described bolt 4 and nut 3 affixed, described brace panel 7 is arranged in the middle of described tail wheel mounting groove 6 and tail wheel unit 5.
Airframe afterbody generally adopts curved design, there is larger installation difficulty as directly installed tail wheel unit 5 on its curved surface.Also be difficult to ensure Joint strenght simultaneously.One tail wheel mounting groove 6 is set, the lower surface of tail wheel mounting groove 6 is installed tail wheel unit 5.There is larger horizontal mounting surface mounting portion, can firmly install tail wheel unit 5.Simultaneously in order to reduce the external impacts that tail wheel unit 5 and fuselage 1 afterbody tail wheel mounting groove 6 are subject to when taking off or land, increase its service life.Spy arranges an interlayer and brace panel 7, is used for sharing and offset tail wheel unit 5 and fuselage 1 afterbody tail wheel mounting groove 6 is subject to impulsive force.The attachment face shape of tail wheel mounting groove 6, brace panel 7 and tail wheel unit 5 cooperatively interacts, and described brace panel 7 and tail wheel unit 5 to be just arranged in described tail wheel mounting groove 6.The attachment face of brace panel 7 and tail wheel unit 5 to be lying into completely in described tail wheel mounting groove 6, not merely can to play the object of accurately location tail wheel unit 5, and tail wheel unit 5, friction force between brace panel 7 and tail wheel mounting groove 6 can well be reduced.Described brace panel 7 is carbon fiber sheet.Carbon fiber sheet is selected to be because carbon fibre materials has the advantages such as the tough not easy fracture of hardness macrostructure as brace panel 7.Especially be suitable as the parts strengthening intensity to use.Can well absorb the power that when taking off and land, airplane tail wheel unit 5 is subject to.Described carbon fiber sheet is that 1-3 layer is formed by stacking.Multiple-structure is further gained in strength.Described nut 3 is anti-pawl nut.Common nut Long-Time Service can produce the situation that vibrations loosen, if this thing happens in aircraft navigation, no matter to the people in equipment or flight range, has very large potential safety hazard, needs to select a kind of energy to reduce to shake the nut loosened and installs.So select nut to be that anti-pawl nut reaches required working effect.
The working process of this example: during installation, carbon fiber sheet is put into tail wheel mounting groove 6, then tail wheel unit 5 is lying under mounting groove 6 is built in carbon fiber sheet, bolt 4 mounting hole of alignment tail wheel mounting groove 6, carbon fiber sheet, tail wheel unit 5.Load bolt 4 to be connected with the anti-pawl nut thread inlayed in tail wheel mounting groove 6.After screwing, installation.
Above an embodiment of the invention has been described in detail, but described content being only the preferred embodiment of the invention, the practical range for limiting the invention can not being considered to.All equalization changes done according to the invention application range with improve, within the patent covering scope that still all should belong to the invention.
Claims (5)
1. the modular construction that a tail wheel and fuselage are fixing, it is characterized in that: comprise fuselage (1), nut (3), bolt (4), brace panel (7), tail wheel mounting groove (6), the afterbody of described fuselage (1) is provided with described tail wheel mounting groove (6), described nut (3) is studded with in described tail wheel mounting groove (6), the attachment face of described tail wheel unit (5) and the lower surface of described tail wheel mounting groove (6) by described bolt (4) and nut (3) affixed, described brace panel is arranged on described tail wheel mounting groove (6) and tail wheel unit (5) centre.
2. the modular construction that a kind of tail wheel according to claim 1 and fuselage are fixing, it is characterized in that: the attachment face shape of described tail wheel mounting groove (6), brace panel (7) and tail wheel unit (5) cooperatively interacts, and described brace panel (7) and tail wheel unit (5) are just arranged in described tail wheel mounting groove (6).
3. the modular construction that a kind of tail wheel according to claim 1 and fuselage are fixing, is characterized in that: described brace panel (7) is carbon fiber sheet.
4. the modular construction that a kind of tail wheel according to claim 1,2 and fuselage are fixed, is characterized in that: described carbon fiber sheet is that 1-3 layer is formed by stacking.
5. the modular construction that a kind of tail wheel according to claim 1 and fuselage are fixing, is characterized in that: described nut (3) is anti-pawl nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310352783.5A CN104369861A (en) | 2013-08-14 | 2013-08-14 | Module structure for fixing tail wheel and machine body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310352783.5A CN104369861A (en) | 2013-08-14 | 2013-08-14 | Module structure for fixing tail wheel and machine body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104369861A true CN104369861A (en) | 2015-02-25 |
Family
ID=52549126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310352783.5A Pending CN104369861A (en) | 2013-08-14 | 2013-08-14 | Module structure for fixing tail wheel and machine body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104369861A (en) |
-
2013
- 2013-08-14 CN CN201310352783.5A patent/CN104369861A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150225 |
|
| WD01 | Invention patent application deemed withdrawn after publication |