CN203806136U - Silt-preventing device for take-off and landing of rotary wing aircraft - Google Patents
Silt-preventing device for take-off and landing of rotary wing aircraft Download PDFInfo
- Publication number
- CN203806136U CN203806136U CN201420168903.6U CN201420168903U CN203806136U CN 203806136 U CN203806136 U CN 203806136U CN 201420168903 U CN201420168903 U CN 201420168903U CN 203806136 U CN203806136 U CN 203806136U
- Authority
- CN
- China
- Prior art keywords
- protective cover
- mud guard
- cylindrical spring
- damping pulley
- alighting gear
- 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 discloses a silt-preventing device for the take-off and the landing of a rotary wing aircraft. A protective cover is arranged at the position, above a damping pulley, at the bottom end of a landing gear; the tail end of the protective cover is movably connected with a mud guard; the protective cover is fixedly connected with the landing gear through a cylindrical spring. The protective cover is arranged at the position, above the damping pulley, at the bottom end of the landing gear, and the mud guard is arranged behind the damping pulley, so that in the sliding process of the rotary wing aircraft, dust and sand raised to an aircraft body by the damping pulley can be blocked, and the flight safety of the rotary wing aircraft is improved. The protective cover is connected to a supporting frame through the cylindrical spring, so that the buffering functions of the protective cover and the mud guard are added, and impact power of the dust and the sand on the protective cover and the mud guard can be decreased. The mud guard is movably connected with the rear end of the protective cover, and a connecting angle between the mud guard and the protective cover can be automatically adjusted under the action of gravity or according to the inertia, so that the defect that the rear part of the damping pulley cannot be effectively protected by the protective cover when the cylindrical spring deviates due to deformation is overcome.
Description
Technical field
The utility model relates to the anti-silt device of a kind of cyclogyro landing.
Background technology
The two ends of cyclogyro alighting gear are connected with vibration-damping pulley.In aircraft taxi process, vibration-damping pulley contacts with ground and can kick up a dust, sandstone, and these sandstone, dust can be got on casing or equipment, and damage equipment and casing, affect flight safety.
Utility model content
The utility model object is to provide a kind of can make the anti-silt device of cyclogyro landing that flies safer.
In order to solve the problems of the technologies described above, the anti-silt device of cyclogyro landing of the present utility model, alighting gear bottom be positioned at vibration-damping pulley above be provided with protective cover, described protective cover tail end is connected with mud guard, described protective cover is fixedly connected on alighting gear by cylindrical spring.
Described mud guard is articulated with protective cover tail end.
Described cylindrical spring is horizontally disposed with, and one end of cylindrical spring is fixedly connected on alighting gear, and the other end is fixedly connected on the outside face of protective cover.
On described protective cover, be provided with through hole, protective cover and cylindrical spring are all sheathed on alighting gear outside face, and one end of cylindrical spring is welded in alighting gear, and the other end is welded in the through hole of protective cover.
Adopt structure of the present utility model, due to be positioned in alighting gear bottom vibration-damping pulley above be provided with protective cover, the rear of vibration-damping pulley is provided with mud guard, slides in process at cyclogyro, can stop that vibration-damping pulley, to dust and the sandstone kicked up on fuselage, improves cyclogyro flight safety.And protective cover is connected to bracing frame by cylindrical spring, increase the pooling feature of protective cover and mud guard, can reduce dust and sandstone and beat the power on protective cover and mud guard.And mud guard is movably connected on protective cover rear end, can automatically adjust and the connection angle of protective cover according to Action of Gravity Field or inertia, to make up protective cover deviation position and the deficiency that can not effectively protect vibration-damping pulley rear portion in the time that cylindrical spring is out of shape.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment mono-in the utility model;
Fig. 1 is the structural representation of embodiment bis-in the utility model.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail:
Embodiment mono-
As shown in Figure 1, alighting gear 1 bottom bend of cyclogyro of the present utility model is also connected in the wheel hub of vibration-damping pulley 2, alighting gear bottom be positioned at vibration-damping pulley above be provided with protective cover 3, protective cover tail end is provided with mud guard 4.Mud guard is flexibly connected with protective cover, as, hinged with protective cover or the movable connection method such as be connected with protective cover by bearing by bolt, can swing in the protective cover left and right sides.Protective cover is fixedly connected on alighting gear by cylindrical spring 5, and protective cover and mud guard can flexiblely swing around cylindrical spring.Being formed by reinforcing bar coiling of cylindrical spring, the fineness of reinforcing bar can be set according to the weight of protective cover and mud guard, makes the intensity of cylindrical spring be enough to the weight of supporting protection cover and mud guard.Mud guard can also be connected by other articulated manner with protective cover.
Cylindrical spring is horizontally set between alighting gear and protective cover, and one end of cylindrical spring is welded in alighting gear, and the other end is welded in the outside face of protective cover.Certainly, cylindrical spring can also be to be obliquely installed, and between horizontal surface, has certain angle, as 30 degree, 45 degree.Alighting gear can be obliquely installed or vertically arrange.
Embodiment bis-
As shown in Figure 2, alighting gear 1 is obliquely installed, and between the vertical surface of vibration-damping pulley 2, is one 30 degree angles, and alighting gear bottom bend is also connected with the wheel hub of vibration-damping pulley.Protective cover 3 tops are provided with through hole, are sheathed on alighting gear outside face by this through hole.Cylindrical spring is sheathed on alighting gear outside face, can be at the length direction dilatation of alighting gear.One end of cylindrical spring 5 is from inner surface and through hole welding, the other end of cylindrical spring and the alighting gear welding of protective cover.Cylindrical spring and protective cover interconnect and are sheathed on the outside face of alighting gear, protective cover can be swung according to the length direction at alighting gear of cylindrical spring is flexible, improve the protection effect of protective cover and mud guard, can also avoid cylindrical spring to swing strong, improve the service life of cylindrical spring.Alighting gear also can vertically arrange.Through hole can also be arranged on the side of protective cover.Cylindrical spring can also be from the outer surface of protective cover and through hole welding.Mud guard is arranged on protective cover rear end and is flexibly connected with protective cover.
Protective cover is groove type, and the side of protective cover is circular arc.Circular groove can change the sandstone of vibration-damping pulley whipping or the sense of motion of dust, and sandstone or dust are got rid of earthward.Mud guard is plate shaped, vertically arranges, or is automatically bent downwardly according to gravity direction, and making material can rubber.Alighting gear can have multiple, and forebody left and right respectively arranges one, and fuselage afterbody arranges one, and each alighting gear arranges separately vibration-damping pulley, protective cover and mud guard, between anterior two alighting gears, can connect by cross bar, increases steadiness.
Claims (3)
1. the anti-silt device of cyclogyro landing, it is characterized in that: alighting gear bottom be positioned at vibration-damping pulley above be provided with protective cover, described protective cover tail end is connected with mud guard, described protective cover is fixedly connected on alighting gear by cylindrical spring, and described mud guard is articulated with protective cover tail end.
2. the anti-silt device of cyclogyro landing according to claim 1, is characterized in that: described cylindrical spring is horizontally disposed with, and one end of cylindrical spring is fixedly connected on alighting gear, and the other end is fixedly connected on the outside face of protective cover.
3. the anti-silt device of cyclogyro landing according to claim 1, it is characterized in that: described protective cover surface is provided with through hole, described protective cover and cylindrical spring are all sheathed on alighting gear outside face, and one end of cylindrical spring is welded in alighting gear, and the other end is welded in the through hole of protective cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420168903.6U CN203806136U (en) | 2014-04-09 | 2014-04-09 | Silt-preventing device for take-off and landing of rotary wing aircraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420168903.6U CN203806136U (en) | 2014-04-09 | 2014-04-09 | Silt-preventing device for take-off and landing of rotary wing aircraft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203806136U true CN203806136U (en) | 2014-09-03 |
Family
ID=51444929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420168903.6U Expired - Fee Related CN203806136U (en) | 2014-04-09 | 2014-04-09 | Silt-preventing device for take-off and landing of rotary wing aircraft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203806136U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107738744A (en) * | 2017-10-25 | 2018-02-27 | 宝鸡欧亚化工设备制造厂 | Cleaning shoe for gyroplane wheel |
-
2014
- 2014-04-09 CN CN201420168903.6U patent/CN203806136U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107738744A (en) * | 2017-10-25 | 2018-02-27 | 宝鸡欧亚化工设备制造厂 | Cleaning shoe for gyroplane wheel |
| CN107738744B (en) * | 2017-10-25 | 2019-06-25 | 宝鸡欧亚化工设备制造厂 | Cleaning shoe for gyroplane wheel |
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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: 20140903 Termination date: 20150409 |
|
| EXPY | Termination of patent right or utility model |