CN105526299A - Two-way multi-stage damping shock absorption method - Google Patents
Two-way multi-stage damping shock absorption method Download PDFInfo
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- CN105526299A CN105526299A CN201410580557.7A CN201410580557A CN105526299A CN 105526299 A CN105526299 A CN 105526299A CN 201410580557 A CN201410580557 A CN 201410580557A CN 105526299 A CN105526299 A CN 105526299A
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- inner barrel
- floating piston
- pressure space
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Abstract
The invention discloses a two-way multi-stage damping shock absorption method. The method comprises the following steps: two shock absorption devices simultaneously act, and oil pressure space is full of oil liquid; under the extrusion of external force, an inner barrel does compression movement relatively to an outer baffle; the oil liquid passes through a first damping hole in a first damping body and enters a first pressure relieving space to push a first floating piston to move down; the first floating piston pushes the oil liquid in a second pressure relieving space to pass through a second damping hole in a second damping body, the oil liquid enters a third pressure relieving space to push a second floating piston to move down and compress a spring. The two shock absorption devices are connected with each other, so that the method can provide a better shock absorption effect.
Description
Technical field
The present invention relates to aircraft field, particularly relate to a kind of two-way Multi-stage damping Shockproof method.
Background technique
Undercarriage is the special arrangement for taking off landing.In aircraft landing process, always with certain speed impacts ground, undercarriage bears and slows down this shock, thus alleviates the stand under load of aircraft.The critical component that undercarriage slows down this bump stroke is exactly shock-absorbing equipment.If shock-absorbing equipment de-sign is unreasonable, will aircraft be made to bear larger load, cause airplane design weight to improve.If shock-absorbing equipment breaks down, will cause aircraft hard landing, airframe structure is destroyed, and even occurs fatal crass.
Existing shock-absorbing equipment adopts air-fuel mixture formula structure, and its shortcoming is, air cavity easily leaks.Once air cavity leaks, the cushioning effect of shock-absorbing equipment will significantly weaken, and shock-absorbing equipment cannot return.More weak cushioning effect will when aircraft landing, and undercarriage and ground first time collision rift disappear.
Meanwhile, in existing shock-absorbing equipment, only there is a damping device, its finite energy absorbed.As in order to improve power absorption, being diminished by the damping hole on damping device, the requirement of the strength of materials made damping device greatly being improved, also make the service behaviour of shock-absorbing Whole Equipment seem " firmly " affects shock-proof effect simultaneously.
Existing shock-absorbing device travel is shorter, cannot provide enough shock-proof effects.
Summary of the invention
Namely object of the present invention is to overcome the deficiencies in the prior art, provides a kind of two-way Multi-stage damping Shockproof method.
Object of the present invention is achieved through the following technical solutions:
Two-way Multi-stage damping Shockproof method, utilize equipment as described below: described equipment comprises two interconnective shock-absorbing equipment, and shock-absorbing equipment comprises inner barrel, outer cylinder body, the first floating piston, the first damping body, the second damping body, the second floating piston 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; First damping body is arranged at the top of inner barrel, spring, the second floating piston, the second damping body and the first floating piston is set gradually from bottom to up in inner barrel, one end of spring is connected with the second floating piston, and the other end of spring is connected with the bottom interior surface of inner barrel; First damping body offers the first damping hole, the second damping body offers the second damping hole; Inner barrel slides and is arranged in outer cylinder body, and the space between inner barrel top and outer cylinder body top forms oil pressure space; Space in inner barrel between the first floating piston and the first damping body forms the first slow pressure space; Space in inner barrel between the first floating piston and the second damping body forms second and slow presses space; Space in inner barrel between the second damping body and the second floating piston forms the 3rd and slow presses space, and the closed section of the outer cylinder body of two shock-absorbing equipment is interconnected.
Concrete grammar is as follows:
Two shock-absorbing equipment actions simultaneously, oil pressure is full of fluid in space, and when by external force extruding, inner barrel does compression movement relative to outer cylinder body.Fluid passes through the first damping hole on the first damping body, portion of energy when now can produce damping thus absorb aircraft landing.Fluid enters the first slow pressure space, promotes the first floating piston and moves downward.The first floating piston fluid promoted in the second slow pressure space passes through the second damping hole on the second damping body, portion of energy when now can produce damping thus absorb aircraft landing.Fluid enters the 3rd slow pressure space, and promote the second floating piston and move downward, Compress Spring, absorbs energy further.After external force disappears, spring promotes the second floating piston, fluid in 3rd slow pressure space is pushed back the second slow pressure space by the second floating piston, fluid amount in second slow pressure space increases, promote the first floating piston and the fluid in the first slow pressure space is pushed back oil pressure space, 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 vibration damper.
The present invention adopts multistage slow pressure, improves the shock-absorbing ability of shock-absorbing equipment, reduces the requirement to the damping body strength of materials simultaneously, avoids the problem that shock-absorbing equipment service behaviour crosses " firmly ".
The present invention adopts two shock-absorbing equipment to be interconnected to constitute, and can provide better shock-proof effect.
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, avoids 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 first damping hole 8 is opened in the central position of described first damping body 4; Described second damping hole 9 is opened in the central position of described second damping body 5.。
Further, connecting body is set in the bottom of described inner barrel.
Connecting body is for being fixed on undercarriage by the present invention.
In sum, advantage of the present invention and beneficial effect are:
1. the present invention adopts spring to substitute air in inner barrel, avoids air leakage and causes the cushioning effect of vibration damper cannot the problem of return with vibration damper by significantly weakening;
2. the present invention adopts multistage slow pressure, improves the shock-absorbing ability of shock-absorbing equipment, reduces the requirement to the damping body strength of materials simultaneously, avoids the problem that shock-absorbing equipment service behaviour crosses " firmly ";
3. the present invention adopts two shock-absorbing equipment to be interconnected to constitute, and can provide better shock-proof effect;
4. seal support part is set, avoids the oil liquid leakage in outer cylinder body.
Accompanying drawing explanation
In order to be illustrated more clearly in embodiments of the invention, be briefly described to the accompanying drawing used required for describing in the embodiment of the present invention below.Apparent, 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, according to accompanying drawing below, can also obtain other accompanying drawing.
Fig. 1 is the structural representation of equipment in the present invention;
The component title that wherein reference character is corresponding is as follows:
1-inner barrel, 2-outer cylinder body, 3-first floating piston, 4-first damping body, 5-second damping body, 6-second floating piston, 7-spring, 8-first damping hole, 9-second damping hole, 10-oil pressure space, the slow pressure space of 11-first, the slow pressure space of 12-second, the slow pressure space of 13-the 3rd, 14-seal support part, 15-bearing pin, 16-connecting body.
Embodiment
In order to make those skilled in the art understand the present invention better, below in conjunction with the accompanying drawing in the embodiment of the present invention, clear, complete description is carried out to the technological scheme in the embodiment of the present invention.Apparent, embodiment described below is only the part in the embodiment of the present invention, instead of all.Based on the embodiment that the present invention records, other all embodiment that those skilled in the art obtain when not paying creative work, all in the scope of protection of the invention.
Embodiment 1:
As shown in Figure 1, two-way Multi-stage damping Shockproof method, utilize equipment as described below: described equipment comprises two interconnective shock-absorbing equipment, shock-absorbing equipment comprises inner barrel 1, outer cylinder body 2, first floating piston 3, first damping body 4, second damping body 5, second floating piston 6 and spring 7; 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; First damping body 4 is arranged at the top of inner barrel 1, spring 7, second floating piston 6, second damping body 5 and the first floating piston 3 is set gradually from bottom to up in inner barrel 1, one end of spring 7 is connected with the second floating piston 6, and the other end of spring 7 is connected with the bottom interior surface of inner barrel 1; First damping body 4 offers on the first damping hole 8, second damping body 5 and offer the second damping hole 9; Inner barrel 1 slides and is arranged in outer cylinder body 2, and the space between inner barrel 1 top and outer cylinder body 2 top forms oil pressure space 10; Space in inner barrel 1 between first floating piston 3 and the first damping body 4 forms the first slow pressure space 11; Space in inner barrel 1 between first floating piston 3 and the second damping body 5 forms second and slow presses space 12; Space in inner barrel 1 between second damping body 5 and the second floating piston 6 forms the 3rd and slow presses the closed section of the outer cylinder body 2 of 13, two the shock-absorbing equipment in space to be interconnected.
Concrete grammar is as follows:
Two shock-absorbing equipment actions simultaneously, are full of fluid in oil pressure space 10, and when by external force extruding, inner barrel 1 does compression movement relative to outer cylinder body 2.Fluid passes through the first damping hole 8 on the first damping body 4, portion of energy when now can produce damping thus absorb aircraft landing.Fluid enters the first slow pressure space 11, promotes the first floating piston 3 and moves downward.First floating piston 3 promotes fluid in the second slow pressure space 12 by the second damping hole 9 on the second damping body 5, portion of energy when now can produce damping thus absorb aircraft landing.Fluid enters the 3rd slow pressure space 13, and promote the second floating piston 6 and move downward, Compress Spring 7, absorbs energy further.After external force disappears, spring 7 promotes the second floating piston 6, fluid in 3rd slow pressure space 13 is pushed back the second slow pressure space 12 by the second floating piston 6, fluid amount in second slow pressure space 12 increases, promote the first floating piston 3 and the fluid in first slow pressure space 11 is pushed back oil pressure space 10, fluid in oil pressure space 10 promotes inner barrel 1, makes inner barrel 1 do stretching exercise relative to outer cylinder body 2, so namely realizes the return of vibration damper.
The present invention adopts multistage slow pressure, improves the shock-absorbing ability of shock-absorbing equipment, reduces the requirement to the damping body strength of materials simultaneously, avoids the problem that shock-absorbing equipment service behaviour crosses " firmly ".
The present invention adopts two shock-absorbing equipment to be interconnected to constitute, and can provide better shock-proof effect.
Embodiment 2:
As shown in Figure 1, the present embodiment, on the basis of embodiment 1, adopts seal support part 14 to seal between described outer cylinder body 2 bottom interior surface and described inner barrel 1 outer surface.
Seal support part 8 is set, avoids the oil liquid leakage in outer cylinder body 2.
Embodiment 3:
As shown in Figure 1, the present embodiment is on the basis of embodiment 2, and described seal support part 14 is connected with described outer cylinder body 2 by bearing pin 15.
Embodiment 4:
As shown in Figure 1, described first damping hole 8, on the basis of any one embodiment above-mentioned, is opened in the central position of described first damping body 4 by the present embodiment; Described second damping hole 9 is opened in the central position of described second damping body 5.
Embodiment 5:
As shown in Figure 1, the present embodiment, on the basis of any one embodiment above-mentioned, arranges connecting body 16 in the bottom of described inner barrel 1.
Connecting body 11 is for being fixed on undercarriage by the present invention.
As mentioned above, just the present invention can be realized preferably.
Claims (5)
1. two-way Multi-stage damping Shockproof method, is characterized in that:
Utilize equipment as described below:
Described equipment comprises two interconnective shock-absorbing equipment, and shock-absorbing equipment comprises inner barrel (1), outer cylinder body (2), the first floating piston (3), the first damping body (4), the second damping body (5), the second floating piston (6) and spring (7); 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; First damping body (4) is arranged at the top of inner barrel (1), spring (7), the second floating piston (6), the second damping body (5) and the first floating piston (3) is set gradually from bottom to up in inner barrel (1), one end of spring (7) is connected with the second floating piston (6), and the other end of spring (7) is connected with the bottom interior surface of inner barrel (1); First damping body (4) offers the first damping hole (8), the second damping body (5) offers the second damping hole (9); Inner barrel (1) slides and is arranged in outer cylinder body (2), and the space between inner barrel (1) top and outer cylinder body (2) top forms oil pressure space (10); Space in inner barrel (1) between the first floating piston (3) and the first damping body (4) forms the first slow pressure space (11); Space in inner barrel (1) between the first floating piston (3) and the second damping body (5) forms second and delays and press space (12); Space in inner barrel (1) between the second damping body (5) and the second floating piston (6) forms the 3rd and delays and press space (13), and the closed section of the outer cylinder body (2) of two shock-absorbing equipment is interconnected;
Concrete grammar is as follows:
Two shock-absorbing equipment actions simultaneously, oil pressure space is full of fluid in (10), and when by external force extruding, inner barrel (1) does compression movement relative to outer cylinder body (2);
Fluid is by the first damping hole (8) on the first damping body (4), and fluid enters the first slow pressure space (11), promotes the first floating piston (3) and moves downward;
First floating piston (3) fluid promoted in the second slow pressure space (12) passes through the second damping hole (9) on the second damping body (5), and fluid enters the 3rd slow pressure space (13), promotes the second floating piston (6) and moves downward, Compress Spring (7);
After external force disappears, spring (7) promotes the second floating piston (6), fluid in 3rd slow pressure space (13) is pushed back the second slow pressure space (12) by the second floating piston (6), fluid amount in second slow pressure space (12) increases, promote the first floating piston (3) and the fluid in the first slow pressure space (11) is pushed back oil pressure space (10), fluid in oil pressure space (10) promotes inner barrel (1), makes inner barrel (1) do stretching exercise relative to outer cylinder body (2).
2. two-way Multi-stage damping Shockproof method according to claim 1, is characterized in that:
Seal support part (14) is adopted to seal between described outer cylinder body (2) bottom interior surface and described inner barrel (1) outer surface.
3. two-way Multi-stage damping Shockproof method according to claim 2, is characterized in that:
Described seal support part (14) is connected with described outer cylinder body (2) by bearing pin (15).
4. two-way Multi-stage damping Shockproof method according to claim 1, is characterized in that:
Described first damping hole (8) is opened in the central position of described first damping body (4);
Described second damping hole (9) is opened in the central position of described second damping body (5).
5., according to the two-way Multi-stage damping Shockproof method in claim 1 ~ 4 described in any one, it is characterized in that:
In the bottom of described inner barrel (1), connecting body (16) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410580557.7A CN105526299A (en) | 2014-10-27 | 2014-10-27 | Two-way multi-stage damping shock absorption method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410580557.7A CN105526299A (en) | 2014-10-27 | 2014-10-27 | Two-way multi-stage damping shock absorption method |
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| Publication Number | Publication Date |
|---|---|
| CN105526299A true CN105526299A (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410580557.7A Pending CN105526299A (en) | 2014-10-27 | 2014-10-27 | Two-way multi-stage damping shock absorption method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715736A (en) * | 2016-04-29 | 2016-06-29 | 畅建坤 | Shock absorber and shock absorption balance system |
| CN105889404A (en) * | 2016-06-03 | 2016-08-24 | 安徽工程大学 | Dismountable energy-absorbing bumper damper |
-
2014
- 2014-10-27 CN CN201410580557.7A patent/CN105526299A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715736A (en) * | 2016-04-29 | 2016-06-29 | 畅建坤 | Shock absorber and shock absorption balance system |
| CN105889404A (en) * | 2016-06-03 | 2016-08-24 | 安徽工程大学 | Dismountable energy-absorbing bumper damper |
| CN105889404B (en) * | 2016-06-03 | 2017-12-29 | 安徽工程大学 | A kind of detachable energy-absorbing bumper damper |
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Application publication date: 20160427 |