CN101975237A - Hydraulic air brake buffer rod - Google Patents
Hydraulic air brake buffer rod Download PDFInfo
- Publication number
- CN101975237A CN101975237A CN 201010527842 CN201010527842A CN101975237A CN 101975237 A CN101975237 A CN 101975237A CN 201010527842 CN201010527842 CN 201010527842 CN 201010527842 A CN201010527842 A CN 201010527842A CN 101975237 A CN101975237 A CN 101975237A
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- inner core
- urceolus
- seat
- top cover
- liquid
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Abstract
The invention discloses a hydraulic air brake buffer rod. The hydraulic air brake buffer rod consists of an upper-end connecting bolt, a seat connector, an inner cylinder, an inner cylinder piston, a middle cylinder, an impact head, an outer cylinder and a pedestal, wherein an air inlet round hole and an air outlet round hole are formed at symmetrical positions on both sides of an upper-end fixing seat; the air inlet hole is used for introducing air so as to lift the seat; the air outlet hole is used for discharging air in a buffering process so as to release energy; symmetrical round guide damping holes communicated with the outer cylinder are distributed at the bottom of the inner cylinder and are used for guiding flow of liquid in the inner and outer cylinders when the liquid is pressurized; two ends of the buffer rod are fixed on the cabin wall and bottom of an airship through the upper-end fixing seat and the pedestal respectively; one end of the airship seat is hinged to the cabin wall while the other end is connected to the buffer rod through the seat connector; the seat connector is fixed to the middle cylinder; and the seat can be lifted or slide in a buffering manner along with the middle cylinder. The hydraulic air brake buffer rod overcomes the serious defects that some traditional buffers cannot completely realize braking and has poor acceleration increment rate reducing effect, relatively larger rebound and the like, and has the advantages of reliable performance and convenience of control.
Description
Technical field
The present invention relates to the buffer bar that a kind of liquid gas mixes brake, can be used as effective buffering safeguard in lifesaving fields such as landing impact such as airship, air dropped vehicle and mine car, elevator.
Background technique
The historical practice of manned space flight shows that the airship return phase is the multiple section of accident.High-intensity landing shock factor has a negative impact to people's cognition, even entail dangers to astronaut's life safety.Therefore, it is most important buffer protection to be carried out in the airship landing shock.Reduce the peak value of impact acceleration for this reason, reduce the damage that the astronaut is caused, the buffer bar device need be installed under seat.
Present buffer bar mainly contains following three kinds: one broaching tool formula buffer, there is scraper buffer inside, scraper cutting inner tube wall during buffering, kinetic energy is converted into metal plastic deformation can reaches the buffering purpose, but such buffer landing angle slightly partially a bit just can not be braked on earth, does not have good buffer function; It two is tensioner ring formula buffers, and the annulus of axially-aligned different-thickness and material in the inner core impacts the head central shoring large deformation of will rising during buffering, and kinetic energy is converted into the annular strain energy that rises, and it is bad that shortcoming is that jolt reduces effect; It three is pneumatic cushions, and the inner core inflation is impacted a pressurized gas and reached buffering, and its subject matter is to rebound greatlyyer, easily causes personnel's secondary damage.
Summary of the invention
Technology of the present invention is dealt with problems and is: overcome the deficiencies in the prior art, provide a kind of brake on earth, rebound little, shock-absorbing capacity is good, be easy to control, the hydraulic pressure gas of reliable performance is stopped buffer bar.
Technical solution of the present invention is: a kind of hydraulic pressure gas buffer bar of stopping, by the seat connector, inner core, middle tube, impact head, urceolus, the inner core piston, base, the upper end coupling bar, urceolus top cover and inner core top cover are formed, wherein inner core is positioned at the middle part of buffer bar, the middle part radial outside of inner core is middle tube and impacts head, impact the below that head is arranged in tube, the lower inside of inner core is the inner core piston, the upper axial outside is the inner core top cover, the top radial outside is the seat connector, the outside of inner core top cover is the upper end coupling bar, be used for being connected with bulkhead, the left and right sides of inner core top cover has inlet hole with breather cheek valve and the exhaust port with one-way exhaust valve, wherein inlet hole is used to feed the gas lift seat, and exhausting air was with the energy of release action in seat when exhaust port was used to cushion; Form first cavity between inner core piston, inner core and the inner core top cover, be used to store gas; The radial outside that impacts head is a urceolus, the radial outside of urceolus is the urceolus top cover, form second cavity between urceolus, inner core and the impact head, be used to place liquid, urceolus top cover middle part has pore, the pressure balance of institute's fluid injection body and ambient air in second cavity when being used for guaranteeing the tube motion, in first cavity in the institute's gas injection body and second cavity separation of institute's fluid injection body by the realization of inner core piston; Interior tube bottom is distributed with the guiding damping hole of the symmetry that communicates with urceolus, guiding at inner core and urceolus when being used for the liquid pressurized flows, urceolus and inner core fixing with base on, the bottom centre position of base has the liquid filling hole, is used for being separately fixed at airship bulkhead and bottom to second cavity injection liquid base and seat connector; The seat connector, impact head and middle tube be the motion parts of buffer bar, all the other be stationary part, a seat connector and impact and can promote and cushion slip up and down with middle.
The described liquid of such scheme is that water or oil, gas are air or inert gas, as nitrogen or helium etc.; Described guiding damping hole for evenly, be symmetrically distributed in tube bottom and communicate with urceolus, its number is 4 or 6.Described seat connector is with the lifting up and down and the buffering sliding distance 100mm～200mm of middle tube.
The principle of such scheme is: utilized the compressible principle of the incompressible and gas of liquid, at first injected liquid by the liquid filling hole of base bottom centre position, made till the second cavity full of liquid, sealed then.Feed the inert gases such as nitrogen of certain pressure intensity during work by the inlet hole of breather cheek valve, force the inner core piston to move down, make second cavity liquid by with the guiding damping hole flow to urceolus, powerful pressure is pressed to middle tube by liquid, tube upwards is promoted to the top in forcing, and device is treats impact conditions.In this process, the effect of liquid is the direction that has changed active force.Next working procedure is exactly a buffering course, occupant and seat apply active force to buffer bar jointly during landing such as airship, air dropped vehicle, the middle tube of buffer bar is under the impact of seat, move down, and by the guiding damping hole liquid is pressed to inner core, pushing the inner core piston simultaneously moves up, at this moment in the inner core, air with certain pressure produces reaction force by compression, stop the inner core piston to move up, the exhaust port by one-way exhaust valve carries out an amount of exhaust simultaneously, and exhaust process finishes, the stop motion of middle tube, the brake buffering course finishes.
The present invention's advantage compared with prior art is:
(1) this device does not need cutting metal or extrusion metal distortion, thus not excessive with the growth rate on earth problem of brake of scraper type buffer bar can not take place, and adopt exhaust mode to make this device that the excessive problem of bounce-back of pneumatic cushion can not take place.
(2) buffer bar only need be regulated draining and less parameters such as exhaust aperture and inflation pressure, significantly reduces the regulation and control difficulty;
(3) this device adopts three layers of sleeve structure to reduce volume, and assembly layout is more reasonable, compact;
(4) buffer bar is to be the hydraulic pressure gas of the resisting medium relief means of stopping a kind of while with liquids and gases, utilize small structure realization decompression and change force direction between inner core and middle tube, inner core gas pressurized produces resistance and exhaust releases energy, and has improved shock-absorbing capacity.
Description of drawings
Fig. 1 is the hydraulic pressure gas of the present invention buffer bar structural representation of stopping.
Embodiment
As shown in Figure 1, be the hydraulic pressure gas of the present invention buffer bar of stopping, by seat connector 1, inner core 2, middle tube 4, impact 5, urceolus 6, inner core piston 7, base 8, upper end coupling bar 12, urceolus top cover 13 and inner core top cover 14 are formed, wherein inner core 2 is positioned at the middle part of buffer bar, the middle part radial outside of inner core 2 is middle tube 4 and impacts 5, impact 5 and be arranged in a below of tins 4, in it, outer both sides three grooves that distribute respectively, all embedded rubber seal, play sealing and protective action, the lower inside of inner core 2 is an inner core piston 7, the upper axial outside is an inner core top cover 14, the top radial outside is a seat connector 1, the outside of inner core top cover 14 is a upper end coupling bar 12, is used for being connected with bulkhead, and the left and right sides of inner core top cover 14 has inlet hole 10 with breather cheek valve and the exhaust port 11 with one-way exhaust valve, wherein inlet hole 10 is used to feed the gas lift seat, and exhausting air was with the energy of release action in seat when exhaust port 11 was used to cushion; Form first cavity 3 between inner core piston 7, inner core 2 and the inner core top cover 14, be used to store gas; Impacting a radial outside of 5 is urceolus 6, the radial outside of urceolus 6 is urceolus top covers 13, urceolus 6, inner core 2 and impact 5 between form second cavity 16, be used to place liquid, urceolus top cover 13 middle parts have pore 15, the pressure balance of institute's fluid injection body and ambient air in second cavity 16 when being used for guaranteeing tube 4 motions, in first cavity 3 in the institute's gas injection body and second cavity 16 separation of institute's fluid injection body by 7 realizations of inner core piston; Inner core 2 bottoms are distributed with the guiding damping hole 9 of the symmetry that communicates with urceolus 6, flow in the guiding of inner core 2 when being used for the liquid pressurized with urceolus 6, urceolus 6 and inner core 2 fixing with base 8 on, base 8 bottom centre positions have liquid filling hole 17, be used for injecting liquid to second cavity 16, base 8 is separately fixed at airship bulkhead and bottom with seat connector 1; Seat connector 1, impact 5 and middle tube 4 be the motion parts of buffer bar, all the other be stationary part, scribble lubricant oil between stationary part and the motion parts, seat connector 1 and impact 5 can promote and cushion slip up and down with middle 4.
Described liquid is water or oil, and gas is air or inert gas, as nitrogen or helium etc.Described guiding damping hole 9 for evenly, be symmetrically distributed in tube bottom and communicate with urceolus, its number is 4 or 6.Seat connector 1 is 100mm～200mm with the lifting up and down and the buffering sliding distance of middle tube 4, and for easy to use, the axial length of urceolus 6 and middle tube 4 should be greater than half of inner core 2 axial lengths; In use, the circumference equal intervals on the inner core piston 7 is with three o type rubber seal, prevents that gas-liquid from interpenetrating.
This is invented described buffer bar and at first injects liquid by the liquid filling hole of base 8 bottom centre positions, makes till second cavity, 16 fulls of liquid, seals then.Feed the inert gases such as nitrogen of certain pressure intensity during work by the inlet hole 10 of breather cheek valve, force inner core piston 7 to move down, make second cavity liquid by with the guiding damping hole 9 flow to urceolus 6, powerful pressure is pressed to middle tube by liquid, tube upwards is promoted to the top in forcing, and device is treats impact conditions.In this process, the effect of liquid is the direction that has changed active force.Next working procedure is exactly a buffering course, occupant and seat apply active force to buffer bar jointly during landing such as airship, air dropped vehicle, the middle tube 4 of buffer bar is under the impact of seat, move down, and by the guiding damping hole 9 liquid is pressed to inner core 2, pushing inner core piston 7 simultaneously moves up, at this moment in the inner core 2, air with certain pressure produces reaction force by compression, stop inner core piston 7 to move up, the exhaust port 11 by one-way exhaust valve carries out an amount of exhaust simultaneously, and exhaust process finishes, 4 stop motions of middle tube, the brake buffering course finishes.
Claims (5)
1. hydraulic pressure gas buffer bar of stopping, it is characterized in that: by seat connector (1), inner core (2), middle tube (4), impact head (5), urceolus (6), inner core piston (7), base (8), upper end coupling bar (12), urceolus top cover (13) and inner core top cover (14) are formed, wherein inner core (2) is positioned at the middle part of buffer bar, the middle part radial outside of inner core (2) is middle tube (4) and impacts head (5), impact the below that head (5) is arranged in tube (4), the lower inside of inner core (2) is inner core piston (7), the upper axial outside is inner core top cover (14), the top radial outside is seat connector (1), the outside of inner core top cover (14) is upper end coupling bar (12), be used for being connected with bulkhead, the left and right sides of inner core top cover (14) has inlet hole (10) with breather cheek valve and the exhaust port (11) with one-way exhaust valve, wherein inlet hole (10) is used to feed the gas lift seat, exhaust port (11) when being used to cushion exhausting air with the energy of release action in seat; Form first cavity (3) between inner core piston (7), inner core (2) and the inner core top cover (14), be used to store gas; The radial outside that impacts head (5) is urceolus (6), the radial outside of urceolus (6) is urceolus top cover (13), form second cavity (16) between urceolus (6), inner core (2) and the impact head (5), be used to place liquid, urceolus top cover (13) middle part has pore (15), the pressure balance of middle institute's fluid injection body of second cavity (16) and ambient air when being used for guaranteeing tube (4) motion, the separation of institute's fluid injection body realizes by inner core piston (7) in middle institute's gas injection body of first cavity (3) and second cavity (16); Inner core (2) bottom is distributed with the guiding damping hole (9) of the symmetry that communicates with urceolus (6), flow in the guiding of inner core (2) when being used for the liquid pressurized with urceolus (6), urceolus (6) and inner core (2) fixing with base (8) on, base (8) is separately fixed at airship bulkhead and bottom with seat connector (1), base (8) bottom centre position has liquid filling hole (17), is used for injecting liquid to second cavity (16); Seat connector (1), impact head (5) and middle tube (4) are the motion parts of buffer bar, and all the other are stationary part, and seat connector (1) and impact head (5) can promote and cushion slip up and down with middle (4).
2. the hydraulic pressure gas according to claim 1 buffer bar of stopping, it is characterized in that: described liquid is water or oil.
3. the hydraulic pressure gas according to claim 1 buffer bar of stopping, it is characterized in that: described gas is air or inert gas.
4. the hydraulic pressure gas according to claim 1 buffer bar of stopping is characterized in that: described guiding damping hole (9) for evenly, be symmetrically distributed in tube bottom and communicate with urceolus, its number is 4 or 6.
5. the hydraulic pressure gas according to claim 1 buffer bar of stopping is characterized in that: seat connector (1) is 100mm～200mm with the lifting up and down and the buffering sliding distance of middle tube (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010527842 CN101975237A (en) | 2010-11-02 | 2010-11-02 | Hydraulic air brake buffer rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010527842 CN101975237A (en) | 2010-11-02 | 2010-11-02 | Hydraulic air brake buffer rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101975237A true CN101975237A (en) | 2011-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010527842 Pending CN101975237A (en) | 2010-11-02 | 2010-11-02 | Hydraulic air brake buffer rod |
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| CN (1) | CN101975237A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359531A (en) * | 2011-09-29 | 2012-02-22 | 中国北方车辆研究所 | Single-cylinder shock absorber |
| CN102710897A (en) * | 2012-06-12 | 2012-10-03 | 天津市联大通讯发展有限公司 | Automatic stabilizing device of video monitoring |
| CN111520431A (en) * | 2020-02-25 | 2020-08-11 | 中国北方车辆研究所 | Integral candle type hydro-pneumatic suspension |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2854204Y (en) * | 2005-10-17 | 2007-01-03 | 泰安航天特种车有限公司 | Oil-gas spring of heavy cross-country vehicle |
| US20080277848A1 (en) * | 2007-05-08 | 2008-11-13 | Terry Davis | Shock absorber fork damper |
| CN201875039U (en) * | 2010-11-02 | 2011-06-22 | 中国航天员科研训练中心 | Hydraulic pneumatic brake buffer rod |
-
2010
- 2010-11-02 CN CN 201010527842 patent/CN101975237A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2854204Y (en) * | 2005-10-17 | 2007-01-03 | 泰安航天特种车有限公司 | Oil-gas spring of heavy cross-country vehicle |
| US20080277848A1 (en) * | 2007-05-08 | 2008-11-13 | Terry Davis | Shock absorber fork damper |
| CN201875039U (en) * | 2010-11-02 | 2011-06-22 | 中国航天员科研训练中心 | Hydraulic pneumatic brake buffer rod |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359531A (en) * | 2011-09-29 | 2012-02-22 | 中国北方车辆研究所 | Single-cylinder shock absorber |
| CN102359531B (en) * | 2011-09-29 | 2016-10-05 | 中国北方车辆研究所 | Single cylinder type vibration damper |
| CN102710897A (en) * | 2012-06-12 | 2012-10-03 | 天津市联大通讯发展有限公司 | Automatic stabilizing device of video monitoring |
| CN111520431A (en) * | 2020-02-25 | 2020-08-11 | 中国北方车辆研究所 | Integral candle type hydro-pneumatic suspension |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110216 |