CN105626764A - Method for buffering undercarriage by mixing rubber and spring - Google Patents
Method for buffering undercarriage by mixing rubber and spring Download PDFInfo
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- CN105626764A CN105626764A CN201410580674.3A CN201410580674A CN105626764A CN 105626764 A CN105626764 A CN 105626764A CN 201410580674 A CN201410580674 A CN 201410580674A CN 105626764 A CN105626764 A CN 105626764A
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- spring
- inner barrel
- outer cylinder
- cylinder body
- floating piston
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Abstract
The invention discloses a method for buffering undercarriage by mixing a rubber and a spring, and the method comprises the steps that oil is filled in an oil pressure space; when the two buffer units are squeezed by outside, an inner cylindrical shell performs a compression motion relative to an outer cylindrical shell, and the oil passes through a damping hole in a damping body; the oil enters a pressure relief space to promote a floating piston compress a spring, meanwhile, an elastic rubber column is used to protect the spring and prevent the spring from being compressed excessively; when an outside force disappears, the spring promotes the floating piston, and the floating piston pushes the oil in the pressure relief space back to the oil pressure space; the oil in the oil pressure space pushes the inner cylindrical shell to make the inner cylindrical shell perform an extension motion relative to the outer cylindrical shell. An elastic rubber column that wraps the spring is provided to prevent the spring from being compressed excessively and improve the reliability of the present invention further.
Description
Technical field
The present invention relates to aircraft field, particularly relate to a kind of way to play for time for aircraft landing gear.
Background technology
Undercarriage is for the special arrangement taking off landing. In aircraft landing process, always with certain speed impacts ground, undercarriage bears and slows down this shock, thus alleviating the stand under load of aircraft. It is exactly buffer unit that undercarriage slows down the critical component of this bump stroke. If buffer unit design is unreasonable, aircraft will be made to bear bigger load, cause that airplane design weight improves. If buffer unit breaks down, causing aircraft hard landing, airframe structure is destroyed, and fatal crass even occurs.
Existing buffer unit adopts air-fuel mixture formula structure, and it is disadvantageously, air cavity is susceptible to leakage. Once air cavity leaks, the buffering effect of buffer unit will significantly weaken, and buffer unit cannot return. More weak buffering effect will when aircraft landing, and undercarriage disappears with ground first time collision rift.
Summary of the invention
Namely the purpose of the present invention is in that to overcome the deficiencies in the prior art, it is provided that a kind of method adopting rubber spring hybrid mode that undercarriage is cushioned.
The purpose of the present invention is achieved through the following technical solutions:
The method adopting rubber spring hybrid mode that undercarriage is cushioned, utilizes buffer unit as described below;
Buffer unit includes inner barrel, outer cylinder body, floating piston, damping body and spring; Outer cylinder body upper end closed, outer cylinder body lower end is open, and inner barrel upper end is open, inner barrel lower end closed; Floating piston and spring are arranged in inner barrel, and one end of spring is connected with floating piston, and the other end of spring is connected with the bottom interior surface of inner barrel; Spring outer wrapping elastic rubber column, the diameter of elastic rubber column is less than the internal diameter of inner barrel; Damping body is arranged at the top of inner barrel, and damping body offers damping hole; Inner barrel is slideably positioned in outer cylinder body, and the space between inner barrel top and outer cylinder body top constitutes oil pressure space; In inner barrel, the space between floating piston and damping body constitutes slow pressure space;
Concrete grammar is as follows:
Being full of fluid in oil pressure space, when extrude by external force, inner barrel does compression motion relative to outer cylinder body, and fluid by the damping hole on damping body, now can produce to damp thus partial capability when absorbing aircraft landing. After fluid enters slow pressure space, promote floating piston compression spring, further absorbability. After external force disappears, spring promotes floating piston, and the fluid in slow pressure space is pushed back oil pressure space by floating piston, and the fluid in oil pressure space promotes inner barrel, makes inner barrel do stretching exercise relative to outer cylinder body, so namely realizes the return of buffer unit.
The present invention adopts spring to substitute the air in inner barrel, it is to avoid air leakage causes that the buffering effect of buffer unit is by significantly weaken cannot the problem of return with buffer unit.
Spring is easily damaged when excess compression, arranges the elastic rubber column of parcel spring for this, it is prevented that spring is overly compressed, and improves the reliability of the present invention further.
Further, spiral type groove is offered in the periphery of described elastic rubber column.
Spiral type groove is set, makes elastic rubber column be easier to be compressed, it is to avoid the shock-absorbing capacity of the present invention is impacted by elastic rubber column.
Further, the cross section of described spiral type groove is set to triangle.
The cross section of spiral type groove is triangle, makes elastic rubber column be easier to be compressed further.
Further, seal support part is adopted to seal between described outer cylinder body bottom interior surface and described inner barrel outer surface.
Seal support part is set, it is to avoid the oil liquid leakage in outer cylinder body.
Further, described seal support part is connected with described outer cylinder body by bearing pin.
Further, described damping hole is opened in the center of described damping body.
Further, connector is set on the top of the bottom of described inner barrel and described outer cylinder body.
Connector is for being fixed on undercarriage by the present invention.
In sum, advantages of the present invention and having the beneficial effects that:
1. the present invention adopts spring to substitute the air in inner barrel, it is to avoid air leakage causes that the buffering effect of amortisseur is by significantly weaken cannot the problem of return with amortisseur;
2. the elastic rubber column of parcel spring is set, it is prevented that spring is overly compressed, improves the reliability of the present invention further;
3. spiral type groove is set, makes elastic rubber column be easier to be compressed, it is to avoid the shock-absorbing capacity of the present invention is impacted by elastic rubber column;
4. the cross section of spiral type groove is triangle, makes elastic rubber column be easier to be compressed further;
5. seal support part is set, it is to avoid the oil liquid leakage in outer cylinder body.
Accompanying drawing explanation
In order to be illustrated more clearly that embodiments of the invention, the accompanying drawing used required for describing in the embodiment of the present invention will be briefly described below. It will be apparent that the accompanying drawing in the following describes is only some embodiments recorded in the present invention, for a person skilled in the art, when not paying creative work, it is also possible to according to figure below, obtain other accompanying drawing.
Fig. 1 is the structural representation of buffer unit in the present invention;
The parts title that wherein accompanying drawing labelling is corresponding is as follows:
1-inner barrel, 2-outer cylinder body, 3-floating piston, 4-damping body, 5-spring, 6-damping hole, 7-oil pressure space, 8-slow pressure space, 9-seal support part, 10-bearing pin, 11-connector, 12-elastic rubber column, 13-spiral groove.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the present invention, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete description. It will be apparent that embodiment described below is only the part in the embodiment of the present invention, rather than all. Based on the embodiment that the present invention records, other all embodiments that those skilled in the art obtain when not paying creative work, all in the scope of protection of the invention.
Embodiment 1:
As it is shown in figure 1, the method adopting rubber spring hybrid mode that undercarriage is cushioned, utilize buffer unit as described below; Buffer unit includes inner barrel 1, outer cylinder body 2, floating piston 3, damping body 4 and spring 5; Outer cylinder body 2 upper end closed, outer cylinder body 2 lower end is open, and inner barrel 1 upper end is open, inner barrel 1 lower end closed; Floating piston 3 and spring 5 are arranged in inner barrel 1, and one end of spring 5 is connected with floating piston 3, and the other end of spring 5 is connected with the bottom interior surface of inner barrel 1; Spring 5 outer wrapping elastic rubber column 12, the diameter of elastic rubber column 12 is less than the internal diameter of inner barrel 1; Damping body 4 is arranged at the top of inner barrel 1, and damping body 4 offers damping hole 6; Inner barrel 1 is slideably positioned in outer cylinder body 2, and the space between inner barrel 1 top and outer cylinder body 2 top constitutes oil pressure space 7; In inner barrel 1, the space between floating piston 3 and damping body 4 constitutes slow pressure space 8;
Concrete grammar is as follows:
Being full of fluid in oil pressure space 7, when extrude by external force, inner barrel 1 does compression motion relative to outer cylinder body 2, and fluid by the damping hole 6 on damping body 4, now can produce to damp thus partial capability when absorbing aircraft landing. Fluid promotes floating piston 3 to compress spring 5, further absorbability after entering slow pressure space 8. After external force disappears, spring 5 promotes floating piston 3, and the fluid in slow pressure space 8 is pushed back oil pressure space 7 by floating piston 3, and the fluid in oil pressure space 7 promotes inner barrel 1, make inner barrel 1 do stretching exercise relative to outer cylinder body 2, so namely realize the return of buffer unit.
The present invention adopts spring 5 to substitute the air in inner barrel 1, it is to avoid air leakage causes that the buffering effect of buffer unit is by significantly weaken cannot the problem of return with buffer unit.
Spring 5 is easily damaged when excess compression, arranges the elastic rubber column 12 of parcel spring 5 for this, it is prevented that spring 5 is overly compressed, and improves the reliability of the present invention further.
Embodiment 2:
As it is shown in figure 1, the present embodiment is on the basis of embodiment 1, offer spiral type groove 13 in the periphery of described elastic rubber column 12.
Spiral type groove 13 is set, makes elastic rubber column 12 be easier to be compressed, it is to avoid the shock-absorbing capacity of the present invention is impacted by elastic rubber column 12.
Embodiment 3:
As it is shown in figure 1, the present embodiment is on the basis of embodiment 2, the cross section of described spiral type groove 13 is set to triangle.
The cross section of spiral type groove 13 is triangle, makes elastic rubber column 12 be easier to be compressed further.
Embodiment 4:
As it is shown in figure 1, the present embodiment is on the basis of any one embodiment above-mentioned, seal support part 9 between described outer cylinder body 2 bottom interior surface and described inner barrel 1 outer surface, is adopted to seal.
Seal support part 9 is set, it is to avoid the oil liquid leakage in outer cylinder body 2.
Embodiment 5:
As it is shown in figure 1, the present embodiment is on the basis of embodiment 4, described seal support part 9 is connected with described outer cylinder body 2 by bearing pin 10.
Embodiment 6:
As it is shown in figure 1, the present embodiment is on the basis of any one embodiment above-mentioned, described damping hole 6 is opened in the center of described damping body 4.
Embodiment 7:
As it is shown in figure 1, the present embodiment is on the basis of any one embodiment above-mentioned, connector 11 is set in the bottom of described inner barrel 1 and the top of described outer cylinder body 2.
Connector 11 is for being fixed on undercarriage by the present invention.
As it has been described above, the present invention just can be realized preferably.
Claims (7)
1. adopt the method that undercarriage is cushioned by rubber spring hybrid mode, it is characterised in that:
Utilize buffer unit as described below;
Buffer unit includes inner barrel (1), outer cylinder body (2), floating piston (3), damping body (4) and spring (5); Outer cylinder body (2) upper end closed, outer cylinder body (2) lower end is open, and inner barrel (1) upper end is open, inner barrel (1) lower end closed; Floating piston (3) and spring (5) are arranged in inner barrel (1), and one end of spring (5) is connected with floating piston (3), and the other end of spring (5) is connected with the bottom interior surface of inner barrel (1); Spring (5) outer wrapping elastic rubber column (12), the diameter of elastic rubber column (12) is less than the internal diameter of inner barrel (1); Damping body (4) is arranged at the top of inner barrel (1), and damping body (4) offers damping hole (6); Inner barrel (1) is slideably positioned in outer cylinder body (2), and the space between inner barrel (1) top and outer cylinder body (2) top constitutes oil pressure space (7); Space between inner barrel (1) interior floating piston (3) and damping body (4) constitutes slow pressure space (8);
Concrete grammar is as follows:
Being full of fluid in oil pressure space (7), when being extruded by external force, inner barrel (1) does compression motion relative to outer cylinder body (2), and fluid is by the damping hole (6) on damping body (4);
Fluid promotes floating piston (3) compression spring (5) after entering slow pressure space (8), and now spring (5) is protected by elastic rubber column (12), it is prevented that spring (5) is overly compressed;
After external force disappears, spring (5) promotes floating piston (3), and the fluid in slow pressure space (8) is pushed back oil pressure space (7) by floating piston (3);
Fluid in oil pressure space (7) promotes inner barrel (1), makes inner barrel (1) do stretching exercise relative to outer cylinder body (2).
2. the method that undercarriage is cushioned by employing rubber spring hybrid mode according to claim 1, it is characterised in that:
Spiral type groove (13) is offered in the periphery of described elastic rubber column (12).
3. the method that undercarriage is cushioned by employing rubber spring hybrid mode according to claim 2, it is characterised in that:
The cross section of described spiral type groove (13) is set to triangle.
4. the method that undercarriage is cushioned by employing rubber spring hybrid mode according to claim 1, it is characterised in that:
Seal support part (9) is adopted to seal between described outer cylinder body (2) bottom interior surface and described inner barrel (1) outer surface.
5. the method that undercarriage is cushioned by employing rubber spring hybrid mode according to claim 4, it is characterised in that:
Described seal support part (9) is connected with described outer cylinder body (2) by bearing pin (10).
6. the method that undercarriage is cushioned by employing rubber spring hybrid mode according to claim 1, it is characterised in that:
Described damping hole (6) is opened in the center of described damping body (4).
7. the method that undercarriage is cushioned by the employing rubber spring hybrid mode according to any one in claim 1 ~ 6, it is characterised in that:
On the top of the bottom of described inner barrel (1) and described outer cylinder body (2), connector (11) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410580674.3A CN105626764A (en) | 2014-10-27 | 2014-10-27 | Method for buffering undercarriage by mixing rubber and spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410580674.3A CN105626764A (en) | 2014-10-27 | 2014-10-27 | Method for buffering undercarriage by mixing rubber and spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105626764A true CN105626764A (en) | 2016-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410580674.3A Pending CN105626764A (en) | 2014-10-27 | 2014-10-27 | Method for buffering undercarriage by mixing rubber and spring |
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| Country | Link |
|---|---|
| CN (1) | CN105626764A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110282134A (en) * | 2019-07-10 | 2019-09-27 | 河海大学常州校区 | A kind of aerial dispensing buffer platform |
| CN110594341A (en) * | 2019-09-23 | 2019-12-20 | 安徽誉林汽车部件有限公司 | Drum-type shock absorber for automobile suspension |
| CN112196932A (en) * | 2020-09-25 | 2021-01-08 | 中国直升机设计研究所 | Throttle valve for buffer |
-
2014
- 2014-10-27 CN CN201410580674.3A patent/CN105626764A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110282134A (en) * | 2019-07-10 | 2019-09-27 | 河海大学常州校区 | A kind of aerial dispensing buffer platform |
| CN110594341A (en) * | 2019-09-23 | 2019-12-20 | 安徽誉林汽车部件有限公司 | Drum-type shock absorber for automobile suspension |
| CN112196932A (en) * | 2020-09-25 | 2021-01-08 | 中国直升机设计研究所 | Throttle valve for buffer |
| CN112196932B (en) * | 2020-09-25 | 2022-04-22 | 中国直升机设计研究所 | Throttle valve for buffer |
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Application publication date: 20160601 |