CN102174947A - Piston-type vehicle air suspension damping device - Google Patents
Piston-type vehicle air suspension damping device Download PDFInfo
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- CN102174947A CN102174947A CN 201110052248 CN201110052248A CN102174947A CN 102174947 A CN102174947 A CN 102174947A CN 201110052248 CN201110052248 CN 201110052248 CN 201110052248 A CN201110052248 A CN 201110052248A CN 102174947 A CN102174947 A CN 102174947A
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- 238000013016 damping Methods 0.000 title claims abstract description 49
- 239000000725 suspension Substances 0.000 title claims abstract description 36
- 238000007789 sealing Methods 0.000 claims description 13
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004643 material aging Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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Abstract
The invention discloses a piston-type vehicle air suspension damping device, belonging to the field of the vehicle damping technology. The piston-type damping device comprises a damper and a piston cylinder component, wherein the damper comprises a damper cylinder body and a damper movable shaft rod arranged in the damper cylinder body; the piston cylinder component comprises a piston cylinder, a piston, a pressure adjusting port and an air flow opening; the piston is closely attached to the inner wall of the piston cylinder; the damper movable shaft rod vertically passes through the piston in a sealed manner, and extends out of an upper cylinder cover of the piston cylinder and is fixed to the upper cylinder cover of the piston cylinder in a sealed way; the damper cylinder body is fixed on the lower end surface of the piston and passes through a lower cylinder cover of the piston cylinder; the pressure adjusting port is arranged on the upper side wall of the piston cylinder; and the air flow opening is arranged on the lower cylinder cover of the piston cylinder. The damping device has the advantages of small size, large pressure bearing capacity, large lifting amplitude, simple structure, and wide application.
Description
Technical field
The present invention relates to a kind of vehicle damping device, particularly a kind of piston type vehicle air suspension damping device.
Background technique
Vehicle is not good in road conditions, can cause rocking of vehicle body usually when taking a sudden turn or bringing to a halt.Advantage such as traditional vehicle air suspension damping device has that rigidity low (its rigidity is non-linear and can regulate), air suspension are Height Adjustable, light weight, noise are low, it is applied to (such as senior motor bus, accurate load-carrying vehicle, go-anywhere vehicle etc.) on the various vehicles more and more widely.Especially, such as to shockproof measuring truck of having relatively high expectations, ambulance, extraordinary military car with require in some special vehicles of Height Adjustable container carrier etc., the air suspension damping device almost becomes the unique selection that realizes vehicle damping.
Traditional vehicle air suspension damping device mainly with rubber pneumatic bag and membrane type air bag spring as elastic element, utilize the compressibility of gas to bring into play elastic reaction.But there is following shortcoming in these air suspension damping devices.
At first, because the bleed pressure that traditional vehicle air suspension damping device provides is limited (generally＜0.85MPa), and the bearing capacity of air bag spring is limited, increase along with the vehicle load capacity, the size that realizes the needed air bag spring of identical damping effect correspondingly also increases thereupon, thereby cause the size of whole vehicle air suspension damping device to increase, this just causes it to be installed on the minicar such as car relatively difficulty, if realize that its installation then needs vehicle frame is carried out corresponding comprehensively design, thereby make that the application area of traditional vehicle air suspension damping device is narrower.
Secondly, the air bag spring is made of rubber material in traditional vehicle air suspension damping device, the rubber material aging or superpressure damage of corrosion easily in the vehicle driving process, thus make the vehicle loses shock-absorbing function, increased the danger of vehicle driving.
Moreover; the air bag spring can only bear normal load; guide mechanism can be set correspondingly usually to bear axial force, longitudinal force and moment in the use of vehicle air suspension device; the vehicle balance adjustment must be handled by the electronic induction balance sysmte of complexity, and this makes that traditional vehicle air suspension apparatus structure more complicated and cost are higher.
At last, the air bag spring is because the restriction of himself material-structure, and the heave amplitude regulation range of air suspension can not be too big, so traditional vehicle air suspension device is very restricted in the lift adjustment design of vehicle.
Summary of the invention
Goal of the invention of the present invention is: at the problem of above-mentioned existence, provide that a kind of size is little, pressure-bearing is big, heave amplitude is big and simple in structure, widely used piston type vehicle air suspension damping device.
To achieve these goals, the invention provides a kind of piston type vehicle air suspension damping device, it comprises damper, this damper comprises the damper cylinder body and is positioned at the movable axostylus axostyle of damper of the inside of this damper cylinder body, also comprise the piston-cylinder parts, wherein these piston-cylinder parts comprise piston cylinder, piston, air pressure adjustment mouth: the inner wall sealing of this piston and this piston cylinder is fitted; The movable axostylus axostyle of this damper vertically seals and runs through this piston, extend the upper cylinder cover that passes this piston cylinder and with the upper cylinder cover fixing seal of this piston cylinder; This damper cylinder body is fixed in the lower end surface of this piston, and passes the following cylinder cap of this piston cylinder; This air pressure adjustment mouth is arranged on the casing wall of this piston cylinder, and wherein this casing wall comprises upper cylinder cover and side casing wall.
In according to one embodiment of present invention, these piston-cylinder parts also comprise gas flow opening, and wherein this gas flow opening is arranged on the following cylinder cap of this piston cylinder.
In according to another embodiment of the invention, the intersection of the upper-end surface of the movable axostylus axostyle of this damper and this piston is provided with first y-type seal ring, and is provided with first groove that is used to hold this first y-type seal ring at this internal piston along the upper-end surface of this piston; The first half of this piston and Lower Half also are with second y-type seal ring and the 3rd y-type seal ring respectively, and are respectively arranged with second groove that is used to hold this second y-type seal ring and the 3rd y-type seal ring on the first half of this piston and Lower Half; The intermediate portion of this piston is with support ring, and also is provided with the 3rd groove that is used to hold this support ring in the intermediate portion of this piston; The intersection of the movable axostylus axostyle of this damper and this piston cylinder upper cylinder cover is provided with sealing nut, seal washer and standing screw.
In sum, owing to adopted technique scheme, the invention has the beneficial effects as follows:
1, adopt the piston-cylinder parts that comprise piston cylinder, piston, air pressure adjustment mouth to substitute rubber pneumatic bag, make the size of this piston type vehicle air suspension damping device littler, pressure-bearing is bigger, heave amplitude is bigger, and structure is more simple, and application area is more extensive;
2, adopt gas flow opening, make that the lift adjustment scope of vehicle body is bigger;
3, in the sealing of the sealing of piston cylinder and piston and movable axostylus axostyle of damper and piston, all adopt y-type seal ring, make that the work of whole damping device is more stable
4, put support ring in the intermediate portion of piston, can alleviate the friction between piston and the piston cylinder, reduce the wearing and tearing of piston and piston cylinder.
Description of drawings
Fig. 1 is the side view of this piston type vehicle air suspension damping device;
Fig. 2 is according to one embodiment of present invention, the perspective view of this piston type vehicle air suspension damping device;
Fig. 3 is according to another embodiment of the invention, the perspective view of this piston vehicle air suspension damping device;
Fig. 4 is the sectional view of this y-type seal ring.
Mark among the figure: 1 is piston, and 2 is piston cylinder, and 2a is piston cylinder top, 2b is the piston cylinder bottom, and 3 is upper cylinder cover, and 4 are following cylinder cap, 5 is the air pressure adjustment mouth, and 6 is the damper cylinder body, and 7 is the movable axostylus axostyle of damper, 8 is gas flow opening, and 9 is first y-type seal ring, and 10 is sealing nut, 11 is seal washer, and 12 is second y-type seal ring, and 13 is the 3rd y-type seal ring, 14 is standing screw, and 15 is support ring.
Embodiment
Below in conjunction with accompanying drawing, the present invention is done detailed explanation.
In order to make purpose of the present invention, technological scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Traditional air suspension damping device is to realize the damping of vehicle in rubber pneumatic bag (the perhaps membrane type air bag spring) mode that combines with damper as elastic element.The mode that piston type vehicle air suspension damping device among the present invention has then adopted the piston-cylinder parts to combine with damper, as shown in Figure 1.This piston type vehicle air suspension damping device comprises damper and piston-cylinder parts.This damper comprises damper cylinder body 6 and is positioned at the movable axostylus axostyle 7 of damper of these damper cylinder body 6 inside.These piston-cylinder parts comprise piston cylinder 2, piston 1, air pressure adjustment mouth 5: this piston 1 is fitted with the inner wall sealing of this piston cylinder 2, and this piston cylinder 2 is divided into piston cylinder top 2a and piston cylinder bottom 2b, provides the stroke adjustment space for this piston 1 jointly; The movable axostylus axostyle 7 of this damper vertically seal and runs through this piston 1, extend the upper cylinder cover 3 that passes this piston cylinder 2 and with the upper cylinder cover fixing seal of this piston cylinder 2, wherein this damper activity axostylus axostyle 7 runs through including but not limited to the central vertical from this piston 1; These damper cylinder body 6 vertical fixing are in the lower end surface of this piston 1 and pass the following cylinder cap 4 of this piston cylinder 2; This air pressure adjustment mouth 5 is arranged on the casing wall of the piston cylinder 2 above this piston, and wherein this air pressure adjustment mouth can be arranged on the upper cylinder cover 3 of piston cylinder 2, also can be arranged on the side casing wall of piston cylinder 2.
In according to one embodiment of present invention, also be provided with gas flow opening 8 on the lower end surface 4 of piston cylinder 2 in these piston-cylinder parts, as shown in Figure 2.This piston 1 is divided into two zones with piston cylinder 2: operating air pressure regulatory region and atmosphere are communicated with the district, wherein the Pneumatic pipe cleaner of this operating air pressure regulatory region is crossed the air pressure adjustment mouth 5 that is arranged on these piston cylinder 2 upper side walls and is regulated this regional air pressure, and this atmosphere is communicated with the district and then directly communicates with external atmosphere pressure.By this gas flow opening 8, the regulating effect of this piston type vehicle air suspension damping device is better.
In according to another embodiment of the invention, the movable axostylus axostyle 7 of this damper is provided with first y-type seal ring 9 with the intersection of this piston 1, and is provided with first groove that is used to hold this first y-type seal ring 9 in piston 1 inside along the upper-end surface of this piston 1; The first half and Lower Half at this piston 1 are with second y-type seal ring 12 and the 3rd y-type seal ring 13 respectively, and in order to put these seal rings, all are provided with on the first half of this piston 1 and the Lower Half in order to hold second groove of these seal rings; The intermediate portion of this piston 1 is with support ring 15, is used to alleviate the friction between piston 1 and the piston cylinder 2, reduces both wearing and tearing, and also is provided with the 3rd groove that is used to hold this support ring 15 in the intermediate portion of this piston 1, as shown in Figure 3.The cross sectional representation of this kind y-type seal ring as shown in Figure 4, its cross section both sides are the lip structure, when being under pressure, this y-type seal ring does the time spent, two lip structures will be opened and be close on the inwall of piston 1 or on the inwall of piston cylinder 2, thereby realize the movable axostylus axostyle 7 of damper and the sealing of piston 1 and the sealing of piston 1 and piston cylinder 2, make that the work of whole damping device is more stable.The movable axostylus axostyle 7 of this damper is provided with sealing nut 10, seal washer 11 and standing screw 14 with the intersection of the upper cylinder cover 3 of piston cylinder 2: the sealing nut 10 common fixing seal of realizing the upper cylinder cover 3 of this damper activity axostylus axostyle 7 and this piston cylinder 2 that matches with sealing packing ring 11, this standing screw 14.
In the damping process of vehicle, when this damping device shown in Figure 1 was subjected to downward power, piston 1 moved upward; When this damping device was subjected to upwards power, piston 1 moved downward, and piston 1 moves up and down and can be subjected to the buffering of the movable axostylus axostyle 7 of damper, and realized the damping of vehicle.Come operating air pressure in the regulating piston cylinder 2 by air pressure adjustment mouth 5, thus the decline of control piston 1 and lifting and realize vehicle lifting.
In sum, than the traditional damping device that adopts rubber pneumatic bag, this piston type vehicle air suspension damping device adopts housing structure can reduce the volume of damping device greatly, be convenient to the installation of various vehicles, make that the use of this vehicle damping device is promoted, and reduced its manufacture cost.This vehicle damping device can improve ride quality, the stationarity of vehicle effectively, and makes the multi-mode of vehicle body height regulate and can be significantly improved.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. piston type vehicle air suspension damping device, comprise damper, wherein said damper comprises damper cylinder body (6) and is positioned at the movable axostylus axostyle (7) of damper of the inside of described damper cylinder body (6), it is characterized in that: also comprise the piston-cylinder parts, wherein said piston-cylinder parts comprise piston cylinder (2), piston (1), air pressure adjustment mouth (5);
Described piston (1) is fitted with the inner wall sealing of described piston cylinder (2);
The movable axostylus axostyle of described damper (7) vertically seal and runs through described piston (1), extension pass described piston cylinder (2) upper cylinder cover (3) and with upper cylinder cover (3) fixing seal of described piston cylinder (2);
Described damper cylinder body (6) is fixed in the lower end surface of described piston (1), and passes the following cylinder cap (4) of described piston cylinder (2);
Described air pressure adjustment mouth (5) is arranged on piston cylinder (2) casing wall of described piston (1) top, and wherein said casing wall comprises upper cylinder cover (3) and side casing wall.
2. piston type vehicle air damping device according to claim 1 is characterized in that: described piston-cylinder parts also comprise gas flow opening (8), and wherein said gas flow opening (8) is arranged on the following cylinder cap (4) of described piston cylinder (2).
3. piston type vehicle air suspension damping device according to claim 1 is characterized in that: the movable axostylus axostyle of described damper (7) is provided with first y-type seal ring (9) with the joint of described piston (1).
4. piston type vehicle air suspension damping device according to claim 3 is characterized in that: the described piston in upper-end surface (1) along described piston (1) is provided with first groove that is used to hold described first y-type seal ring (9).
5. piston type vehicle air suspension damping device according to claim 1 is characterized in that: the first half of described piston (1) and Lower Half also are with second y-type seal ring (12) and the 3rd y-type seal ring (13) respectively.
6. piston type vehicle air suspension damping device according to claim 5 is characterized in that: the first half of described piston (1) and Lower Half are provided with second groove that is used to hold described second y-type seal ring (12) and described the 3rd y-type seal ring (13) respectively.
7. piston type vehicle air suspension damping device according to claim 1 is characterized in that: the intermediate portion of described piston (1) is with support ring (15).
8. piston type vehicle air suspension damping device according to claim 7 is characterized in that: the intermediate portion of described piston (1) is provided with the 3rd groove that is used to hold described support ring (15).
9. piston type vehicle air suspension damping device according to claim 1 is characterized in that: the movable axostylus axostyle of described damper (7) is provided with sealing nut (10), seal washer (11) and standing screw (14) with the joint of the upper cylinder cover (3) of described piston cylinder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110052248 CN102174947A (en) | 2011-03-04 | 2011-03-04 | Piston-type vehicle air suspension damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110052248 CN102174947A (en) | 2011-03-04 | 2011-03-04 | Piston-type vehicle air suspension damping device |
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| Publication Number | Publication Date |
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| CN102174947A true CN102174947A (en) | 2011-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110052248 Pending CN102174947A (en) | 2011-03-04 | 2011-03-04 | Piston-type vehicle air suspension damping device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116336123A (en) * | 2023-05-19 | 2023-06-27 | 佑嘉欣液压科技(东台)有限公司 | Hydraulic damping device for high-speed train |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3273876A (en) * | 1964-08-31 | 1966-09-20 | Jerry M Hannan | Adjustable shock absorber and automatic control mechanism therefor |
| US4441593A (en) * | 1979-08-28 | 1984-04-10 | Fichtel & Sachs Ag | Vibration damper arrangement for vehicles |
| CN2058218U (en) * | 1989-05-13 | 1990-06-13 | 阳强 | Vibration damping device with self-supply compressed air |
| US20020003072A1 (en) * | 2000-05-30 | 2002-01-10 | Sachs Race Engineering Gmbh | Shock absorber |
| CN1875202A (en) * | 2003-10-27 | 2006-12-06 | 坦尼科汽车操作有限公司 | Compensated rod for a frequency dependent damper shock absorber |
| CN201953888U (en) * | 2011-03-04 | 2011-08-31 | 罗小洪 | Piston vibration damping device for automobile air suspension |
-
2011
- 2011-03-04 CN CN 201110052248 patent/CN102174947A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3273876A (en) * | 1964-08-31 | 1966-09-20 | Jerry M Hannan | Adjustable shock absorber and automatic control mechanism therefor |
| US4441593A (en) * | 1979-08-28 | 1984-04-10 | Fichtel & Sachs Ag | Vibration damper arrangement for vehicles |
| CN2058218U (en) * | 1989-05-13 | 1990-06-13 | 阳强 | Vibration damping device with self-supply compressed air |
| US20020003072A1 (en) * | 2000-05-30 | 2002-01-10 | Sachs Race Engineering Gmbh | Shock absorber |
| CN1875202A (en) * | 2003-10-27 | 2006-12-06 | 坦尼科汽车操作有限公司 | Compensated rod for a frequency dependent damper shock absorber |
| CN201953888U (en) * | 2011-03-04 | 2011-08-31 | 罗小洪 | Piston vibration damping device for automobile air suspension |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116336123A (en) * | 2023-05-19 | 2023-06-27 | 佑嘉欣液压科技(东台)有限公司 | Hydraulic damping device for high-speed train |
| CN116336123B (en) * | 2023-05-19 | 2023-11-14 | 佑嘉欣液压科技(东台)有限公司 | Hydraulic damping device for high-speed train |
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Application publication date: 20110907 |