CN203836057U - Dual-cavity oil-gas high-power undercarriage buffer - Google Patents
Dual-cavity oil-gas high-power undercarriage buffer Download PDFInfo
- Publication number
- CN203836057U CN203836057U CN201420186596.4U CN201420186596U CN203836057U CN 203836057 U CN203836057 U CN 203836057U CN 201420186596 U CN201420186596 U CN 201420186596U CN 203836057 U CN203836057 U CN 203836057U
- Authority
- CN
- China
- Prior art keywords
- piston
- oil
- urceolus
- piston rod
- plunger
- 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 - Lifetime
Links
- 239000000872 buffer Substances 0.000 title claims abstract description 37
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 230000009182 swimming Effects 0.000 abstract 4
- 239000007853 buffer solution Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a dual-cavity oil-gas high-power undercarriage buffer, comprising an outer cylinder (1), a plunger (2), a piston rod (3), an oil pointer (4), an anti-resistance valve (5) and a swimming piston (6), wherein the swimming piston (6) is positioned at the upper part of the outer cylinder (1), oil (7) is filled in the upper side of the swimming piston (6), the plunger (2) constituting the outer cylinder (1) is fixedly connected into the outer cylinder (1) on the lower side of the swimming piston (6), the upper end of the piston rod (3) is connected with the plunger (2), the lower end of the piston rod (3) is connected with the outer cylinder (1), the anti-resistance valve (5) is positioned between the outer cylinder and the piston rod, and the oil pointer (4) is positioned in the piston rod (3). By using the dual-cavity oil-gas high-power undercarriage buffer, the high-power absorption requirement of an aircraft in vertical take-off and landing is met, protection effect on flight equipment is good, and safety and comfort level are improved.
Description
Technical field
The utility model relates to structural design and the application of buffer, and the large merit amount of a kind of two-chamber oil-gas type undercarriage buffer is provided especially.
Background technique
When aircraft landing, with respect to the impact on ground, and suffered collision while moving on uneven airport, is mainly born by undercarriage buffer system.Buffering essence be exactly the kinetic energy dissipation of aircraft in buffer system.Undercarriage buffer system is made up of tire and buffer two-part.The pattern of undercarriage buffer generally has: steel spring buffer, rubber spring buffer, air type buffer, fluid air type buffer and full fluid formula buffer.
The design of undercarriage buffer, the requirement that only merit amount is landinged impact in satisfied absorption is inadequate, and considers how more effective reduction taxing load is also a major issue.At present, domestic undercarriage two-chamber buffer is all the buffers that adapt to little subsidence velocity, little merit amount, can not meet rapid sink rate.
People urgently wish to obtain a kind of large merit amount of two-chamber oil-gas type undercarriage buffer that meets rapid sink rate.
Model utility content
The purpose of this utility model is to provide the good large merit amount of the two-chamber oil-gas type undercarriage buffer of a kind of technique effect.
The large merit amount of described two-chamber oil-gas type undercarriage buffer is constructed as follows: urceolus 1, plunger 2, piston rod 3, spindle 4, anti-drag valve 5 and the piston 6 that moves about; The described piston 6 that moves about is positioned at urceolus 1 top, and piston 6 upsides that move about are filled with oil 7; The plunger 2 that forms urceolus 1 is fixedly connected in the urceolus 1 of piston 6 downsides that move about, piston rod 3 upper ends are connected with plunger 2, piston rod 3 lower ends are connected with urceolus 1, described anti-drag valve 5 is between urceolus 1 and piston rod 3, spindle 4 is positioned at piston rod 3 inside, and spindle 4 upper ends are connected with plunger 2, and lower end is connected with piston rod 3, spindle 4 is specially cavity structure, and is provided with oil through 41 on the housing of spindle 4; Described urceolus 1 under-filled has oil 7, and the height of oil 7 is higher than plunger 2 bottoms.Described buffer has two-stage air chamber, and the piston 6 that moves about forms high pressure air cavity with urceolus 1; Move about piston 6, plunger 2 and urceolus 1 forms low pressure air cavity.
The described piston 6 that moves about is specially semicircular structure.Load and good sealing effect, meet the requirement of large merit amount speed.
The large merit amount of described two-chamber oil-gas type undercarriage buffer, referring to accompanying drawing 1, buffer has two-stage air chamber, forms high pressure air cavity, that is: the chamber that move about piston 6 and urceolus 1 form; Low pressure air cavity, that is: the chamber that piston 6, plunger 2 and urceolus 1 form that moves about; Main oil pocket, that is: the chamber that spindle 4, plunger 2 and piston rod 3 form; Oil back chamber.That is: the chamber that anti-drag valve 5, piston rod 3 and urceolus 1 form;
Increase the cushion stroke of buffer, optimized initial stowing pressure and filling volume, and adopted the cavity spindle that is provided with oil through.
The large merit amount that the large merit amount of described two-chamber oil-gas type undercarriage buffer has solved VTOL aircraft requirement absorbs requirement, respond well to the protection of flight equipment, has improved Security and comfort level, has larger economy and social value.
Brief description of the drawings
Fig. 1 is the large merit amount of two-chamber oil-gas type undercarriage buffer structure schematic diagram;
Fig. 2 is the positive stroke work of the large merit amount of two-chamber oil-gas type undercarriage buffer schematic diagram;
Fig. 3 is the large merit amount of two-chamber oil-gas type undercarriage buffer revesal work schematic diagram;
Fig. 4 is spindle structural representation.
Embodiment
Embodiment 1
The large merit amount of described two-chamber oil-gas type undercarriage buffer is constructed as follows: urceolus 1, plunger 2, piston rod 3, spindle 4, anti-drag valve 5 and the piston 6 that moves about; The described piston 6 that moves about is positioned at urceolus 1 top, and piston 6 upsides that move about are filled with oil 7; The plunger 2 that forms urceolus 1 is fixedly connected in the urceolus 1 of piston 6 downsides that move about, piston rod 3 upper ends are connected with plunger 2, piston rod 3 lower ends are connected with urceolus 1, described anti-drag valve 5 is between urceolus 1 and piston rod 3, spindle 4 is positioned at piston rod 3 inside, and spindle 4 upper ends are connected with plunger 2, and lower end is connected with piston rod 3, spindle 4 is specially cavity structure, and is provided with oil through 41 on the housing of spindle 4; Described urceolus 1 under-filled has oil 7, and the height of oil 7 is higher than plunger 2 bottoms.Described buffer has two-stage air chamber, and the piston 6 that moves about forms high pressure air cavity with urceolus 1; Move about piston 6, plunger 2 and urceolus 1 forms low pressure air cavity.
The described piston 6 that moves about is specially semicircular structure.Load and good sealing effect, meet the requirement of large merit amount speed.
The large merit amount of described two-chamber oil-gas type undercarriage buffer, referring to accompanying drawing 1, buffer has two-stage air chamber, forms high pressure air cavity, that is: the chamber that move about piston 6 and urceolus 1 form; Low pressure air cavity, that is: move about piston 6, plunger 2 and and the chamber that forms of urceolus 1; Main oil pocket, that is: the chamber that spindle 4, plunger 2 and piston rod 3 form; Oil back chamber.That is: the chamber that anti-drag valve 5, piston rod 3 and urceolus 1 form;
The cushion stroke that has increased buffer, reaches 600mm; Optimize initial stowing pressure and filling volume, and adopt the cavity spindle that is provided with oil through.
The large merit amount that the large merit amount of described two-chamber oil-gas type undercarriage buffer has solved VTOL aircraft requirement absorbs requirement, respond well to the protection of flight equipment, has improved Security and comfort level, has larger economy and social value.
Claims (2)
1. the large merit amount of a two-chamber oil-gas type undercarriage buffer, is characterized in that: the large merit amount of described two-chamber oil-gas type undercarriage buffer is constructed as follows: urceolus (1), plunger (2), piston rod (3), spindle (4), anti-drag valve (5) and the piston that moves about (6); The described piston that moves about (6) is positioned at urceolus (1) top, and the piston that moves about (6) upside is filled with oil (7); The plunger (2) that forms urceolus (1) is fixedly connected in the urceolus (1) of the piston that moves about (6) downside, piston rod (3) upper end is connected with plunger (2), piston rod (3) lower end is connected with urceolus (1), described anti-drag valve (5) is positioned between urceolus (1) and piston rod (3), spindle (4) is positioned at piston rod (3) inside, and spindle (4) upper end is connected with plunger (2), lower end is connected with piston rod (3), spindle (4) is specially cavity structure, and is provided with oil through (41) on the housing of spindle (4); Described urceolus (1) under-filled has oil (7), and the height of oil (7) is higher than plunger (2) bottom; Described buffer has two-stage air chamber, and the piston that moves about (6) forms high pressure air cavity with urceolus (1); Piston (6), plunger (2) and urceolus (1) formation low pressure air cavity move about.
2. the large merit amount of two-chamber oil-gas type undercarriage buffer as claimed in claim 1, is characterized in that: described in the piston (6) that moves about be specially semicircular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420186596.4U CN203836057U (en) | 2014-04-17 | 2014-04-17 | Dual-cavity oil-gas high-power undercarriage buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420186596.4U CN203836057U (en) | 2014-04-17 | 2014-04-17 | Dual-cavity oil-gas high-power undercarriage buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203836057U true CN203836057U (en) | 2014-09-17 |
Family
ID=51513902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420186596.4U Expired - Lifetime CN203836057U (en) | 2014-04-17 | 2014-04-17 | Dual-cavity oil-gas high-power undercarriage buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203836057U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969083A (en) * | 2016-01-13 | 2017-07-21 | 哈尔滨飞机工业集团有限责任公司 | A kind of new undercarriage buffer |
| CN111609073A (en) * | 2020-06-02 | 2020-09-01 | 上海应用技术大学 | Aircraft landing gear buffer |
| CN112623256A (en) * | 2020-12-29 | 2021-04-09 | 中国航空工业集团公司西安飞机设计研究所 | Double-cavity undercarriage bumper model |
-
2014
- 2014-04-17 CN CN201420186596.4U patent/CN203836057U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969083A (en) * | 2016-01-13 | 2017-07-21 | 哈尔滨飞机工业集团有限责任公司 | A kind of new undercarriage buffer |
| CN111609073A (en) * | 2020-06-02 | 2020-09-01 | 上海应用技术大学 | Aircraft landing gear buffer |
| CN112623256A (en) * | 2020-12-29 | 2021-04-09 | 中国航空工业集团公司西安飞机设计研究所 | Double-cavity undercarriage bumper model |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140917 |