CN104421374A - Amplitude sensing and resisting type hydro-pneumatic spring - Google Patents
Amplitude sensing and resisting type hydro-pneumatic spring Download PDFInfo
- Publication number
- CN104421374A CN104421374A CN201310384682.6A CN201310384682A CN104421374A CN 104421374 A CN104421374 A CN 104421374A CN 201310384682 A CN201310384682 A CN 201310384682A CN 104421374 A CN104421374 A CN 104421374A
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- China
- Prior art keywords
- amplitude
- hydro
- pneumatic spring
- outer cylinder
- end cap
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/22—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with one or more cylinders each having a single working space closed by a piston or plunger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
Abstract
The invention relates to an amplitude sensing and resisting type hydro-pneumatic spring capable of sensing the amplitude of a suspension frame of a vehicle in driving and effectively adjusting vibration damping. The hydro-pneumatic spring comprises an upper-end connector, a piston, a working cylinder, a high-pressure sealing component, a piston rod, a joint ball, a hydraulic pipeline, a damping valve block and an energy storage device and is characterized by further comprising an amplitude sensing and resisting device connected with the damping valve block in parallel; and the strength of the damping force of the hydro-pneumatic spring is adjusted by the reciprocation motion of a floating piston in the amplitude sensing and resisting device. When a vehicle drives on an excellent road, the suspension frame has smaller motion amplitude and the hydro-pneumatic spring can provide smaller damping force to improve the riding comfort; when the vehicle turns around or drives on an off-road pavement, the suspension frame has bigger motion amplitude and the hydro-pneumatic spring can provide bigger damping force to improve manipulating stability and driving safety. The damping feature adaptive to the amplitude of the suspension frame can be provided, the smoothness and the manipulating stability of the whole vehicle can be improved; the diameter of a connecting pipeline is reduced to facilitate the layout of the components of the vehicle; and the hydro-pneumatic spring has a simple and rational structure.
Description
Technical field
the present invention relates to the hydro-pneumatic spring on vehicle suspension, a kind of specifically can the amplitude of sense vehicle suspension when travelling, effectively regulate the amplitude sense resistive hydro-pneumatic spring of vibration damping.
Background technique
At present, be applied to the hydro-pneumatic spring of military vehicle or engineering vehicle, design become split-type structural to possess suspension rigid locking function, namely be formed by connecting by pipeline and orifice valve group between oil gas cylinder and accumulator, there is certain shortcoming and defect in said structure, be in particular in: 1. the diameter of connecting pipeline is too thick: be applied to the tare that hydro-pneumatic spring itself carrying of military vehicle or engineering vehicle is larger, to such an extent as to force value in hydro-pneumatic spring can very high (during stationary vehicle, internal pressure be about 10Mpa, in vehicle travel process, internal pressure is about 25Mpa), in design, the general mode by increasing hydro-pneumatic spring cylinder barrel inner diameter reduces internal pressure, in such vehicle travel process, the flow of fluid can increase again a lot, too small pipeline diameter adds the damping force of hydro-pneumatic spring, excessive damping force is unfavorable for the smoothness that vehicle travels, so the diameter of connecting pipeline can only be strengthened, 2. the diameter of connecting pipeline is too thick, and the bending diameter of pipeline becomes large, is difficult to arrange in limited car load space.3. usually select the vehicle of conventional oil air spring, the stiffness characteristics of hydro-pneumatic spring and damping characteristic all need to design in advance and mate, and coupling hydro-pneumatic spring damping characteristic needs compromise travelling comfort and control stability to determine, damping characteristic can not regulate.
Summary of the invention
In order to overcome the above problems, the invention provides a kind of amplitude sense resistive hydro-pneumatic spring, this hydro-pneumatic spring is simple and reasonable, and arrangement is convenient, and suspension damping characteristic can change with the change of Suspension movement amplitude.
The object of the present invention is achieved like this, and this hydro-pneumatic spring comprises upper end connecting head, piston, clutch release slave cylinder, high-pressure sealing ring, piston rod, joint ball head, hydraulic pipe line, orifice valve group and accumulator, is characterized in that: it also comprises the amplitude sense be installed in parallel with orifice valve group and hinders device M.
Described amplitude sense resistance device M comprises end cap, outer cylinder, volute spring I, piston packing, guidance tape, floating piston, volute spring II and end bracket enclosed circle, wherein end cap one end connects hydraulic pipe line, and the end cap the other end is connected with outer cylinder by screw thread, and adopts end bracket enclosed circle to seal; Floating piston is placed in outer cylinder, outer cylinder is divided into C chamber and D chamber, and guidance tape and piston packing are arranged on the groove of floating piston excircle respectively; The bigger diameter end of volute spring I and volute spring II is stuck in the draw-in groove of end cap, and miner diameter end is suspended in C chamber and D chamber.
The two ends of described orifice valve group are connected by hydraulic pipe line, hinder device M and form loop, be filled with the nitrogen of certain pressure in accumulator with accumulator, amplitude sense.
In order to realize regulating the volume in C chamber and D chamber in outer cylinder by rotating two ends end cap, described end cap is arranged in outer cylinder the adjustment type structure being threaded connection and forming amplitude sense resistance device M.When end cap turns to outer cylinder inward turning, in amplitude sense resistance device, the stroke of floating piston reduces; On the contrary, when end cap is to outer cylinder inner rotary, in amplitude sense resistance device, the stroke of floating piston increases.Described amplitude sense resistance device M can realize the regulating action of damping force.
The present invention has the following advantages and good effect:
1, the present invention is owing to adopting said structure, and when vehicle travels in good road surface, Suspension movement amplitude is less, and now hydro-pneumatic spring can provide less damping force, improves ride comfort; When vehicle is when turning to or travel on cross-country road, Suspension movement amplitude is comparatively large, and now hydro-pneumatic spring can provide larger damping force, improves control stability and driving safety.
2, the present invention can provide the damping characteristic adapted with the size of suspension amplitude, improves car load smoothness and control stability, reduces the diameter of connecting pipeline simultaneously, be conducive to the layout of car load parts, simple and reliable for structure.
Accompanying drawing explanation
Fig. 1 is the structural representation of amplitude sense resistive hydro-pneumatic spring of the present invention.
Fig. 2 is the structure for amplifying schematic diagram of amplitude sense of the present invention resistance device.
Fig. 3 is that in amplitude sense of the present invention resistance device, end cap is arranged on another kind of mode of execution structure for amplifying schematic diagram in outer cylinder.
In figure: 1, upper end connecting head, 2, piston, 3, clutch release slave cylinder, 4, high-pressure sealing ring, 5, piston rod, 6, joint ball head, 7, connecting pipeline, 8, orifice valve group, 9, end cap, 10, outer cylinder, 11, volute spring I, 12, piston packing, 13, guidance tape, 14, floating piston, 15, volute spring II, 16, end bracket enclosed circle, 17, accumulator.
Embodiment
As shown in Figure 1: this hydro-pneumatic spring comprises upper end connecting head 1, piston 2, clutch release slave cylinder 3, high-pressure sealing ring 4, piston rod 5, joint ball head 6, hydraulic pipe line 7, orifice valve group 8, accumulator 17, it also comprises the amplitude sense be installed in parallel with orifice valve group 8 and hinders device M.
As shown in Figure 2: described amplitude sense resistance device M comprises end cap 9, outer cylinder 10, volute spring I 11, piston packing 12, guidance tape 13, floating piston 14, volute spring II 15 and end bracket enclosed circle 16, wherein end cap 9 one end connects hydraulic pipe line 7, and end cap 9 the other end is connected with outer cylinder 10 by screw thread, and adopts end bracket enclosed circle 16 to seal; Floating piston 14 is placed in outer cylinder 10, outer cylinder 10 is divided into C chamber and D chamber, and guidance tape 13 and piston packing 12 are arranged on floating piston 14 excircle respectively; The bigger diameter end of volute spring I 11 and volute spring II 15 is stuck in the draw-in groove of end cap 9, and miner diameter end is suspended in C chamber and D chamber.
Described piston 2 forms A chamber with piston rod 5 inside, and piston rod 5 is threaded with piston 2, and joint ball head 6 is placed in the lower end of piston rod 5, and high-pressure sealing ring 4 is placed on piston rod 5 excircle, and clutch release slave cylinder 3 and piston rod 5 form B chamber.
The two ends of described orifice valve group 8 are connected by hydraulic pipe line 7, hinder device M form loop with accumulator 17, amplitude sense.
Be the adjustment type structure of amplitude sense resistance device M as shown in Figure 3, described end cap 9 is arranged in outer cylinder 10 and is threaded connection, and rotates the volume in two ends end cap 9 adjustable adjustment C chamber and D chamber.When end cap 9 rotates in outer cylinder 10, in amplitude sense resistance device M, the stroke of floating piston 14 reduces; On the contrary, when end cap 9 is to outer cylinder 10 inner rotary, in amplitude sense resistance device M, the stroke of floating piston 14 increases.
Working principle:
When vehicle travels in good road surface, suspension amplitude is less, joint ball head 6 upwardly piston rod 5 moves, A chamber fluid in piston rod 5 is extruded, part fluid is extruded in B chamber, part fluid flows in amplitude sense resistance device M and orifice valve group 8 through hydraulic pipe line 7, the amplitude moved due to piston rod 5 is less, a small amount of fluid is only had to flow into accumulator 17 by orifice valve group 8, all the other fluid flows into C chamber, promote floating piston 14 and extrude volute spring II 15, small axial motion is done in outer cylinder 10, floating piston 14 promotes D chamber fluid and flows into accumulator 17 through hydraulic pipe line 7, when piston rod 5 moves downward, fluid is squeezed out by accumulator 17, and it is same as described above that fluid flows through position, and fluid flows to contrary to the above.In this course, floating piston 14 does not reach end cap 9 place, now, hydro-pneumatic spring less suspension damping power is provided, thus significantly reduce the most responsive vehicle body vertical acceleration peak value of human body, improve ride quality.
When vehicle travels at cross-country road, suspension amplitude increases.Joint ball head 6 upwardly piston rod 5 moves, A chamber fluid in piston rod 5 is extruded, part fluid is extruded in B chamber, part fluid flows in amplitude sense resistance device M and orifice valve group 8 through hydraulic pipe line 7, because the amplitude of piston rod movement is larger, the fluid flowing into C chamber shifts end cap 9 place onto floating piston 14 soon, and the fluid part fluid now in A chamber flows into amplitude sense resistance device M, and most of fluid flows into accumulator 17 by orifice valve group 8; When piston rod 5 moves downward, fluid is squeezed out by accumulator 17, and it is same as described above that fluid flows through position, and fluid flows to contrary to the above.In this course, floating piston 14 is almost in end cap 9 place always, now, hydro-pneumatic spring larger suspension damping power is provided, ensure that tire adhesive quality and vehicle safety.
Claims (4)
1. an amplitude sense resistive hydro-pneumatic spring, this hydro-pneumatic spring comprises upper end connecting head (1), piston (2), clutch release slave cylinder (3), high-pressure sealing ring (4), piston rod (5), joint ball head (6), hydraulic pipe line (7), orifice valve group (8) and accumulator (17), is characterized in that: it also comprises the amplitude sense be installed in parallel with orifice valve group (8) and hinders device (M).
2. a kind of amplitude sense resistive hydro-pneumatic spring according to claim 1, it is characterized in that: described amplitude sense resistance device (M) comprises end cap (9), outer cylinder (10), volute spring I (11), piston packing (12), guidance tape (13), floating piston (14), volute spring II (15) and end bracket enclosed circle (16), wherein end cap (9) one end connects hydraulic pipe line (7), end cap (9) the other end is connected with outer cylinder (10) by screw thread, and adopts end bracket enclosed circle (16) to seal; Floating piston (14) is placed in outer cylinder (10), outer cylinder (10) is divided into (C) chamber and (D) chamber, guidance tape (13) and piston packing (12) are arranged on the groove of floating piston (14) excircle respectively; The bigger diameter end of volute spring I (11) and volute spring II (15) is stuck in the draw-in groove of end cap (9), in miner diameter end is suspended in (C) chamber and (D) chamber.
3. a kind of amplitude sense resistive hydro-pneumatic spring according to claim 1, it is characterized in that: the two ends of described orifice valve group (8) are connected by hydraulic pipe line (7), hinder device (M) with accumulator (17), amplitude sense and form loop, in accumulator (17), be filled with the nitrogen of certain pressure.
4. amplitude sense resistance device (M) according to claim 2, it is characterized in that: in order to realize regulating the volume in (C) chamber and (D) chamber in outer cylinder (10) by rotating two ends end cap (9), described end cap (9) is arranged in outer cylinder (10) the adjustment type structure being threaded connection and forming amplitude sense resistance device (M), when end cap (9) turns to outer cylinder inward turning, in amplitude sense resistance device, the stroke of floating piston (14) reduces; On the contrary, when end cap (9) is to outer cylinder inner rotary, in amplitude sense resistance device, the stroke of floating piston (14) increases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310384682.6A CN104421374B (en) | 2013-08-30 | 2013-08-30 | Amplitude sense resistive hydro-pneumatic spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310384682.6A CN104421374B (en) | 2013-08-30 | 2013-08-30 | Amplitude sense resistive hydro-pneumatic spring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104421374A true CN104421374A (en) | 2015-03-18 |
| CN104421374B CN104421374B (en) | 2016-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310384682.6A Active CN104421374B (en) | 2013-08-30 | 2013-08-30 | Amplitude sense resistive hydro-pneumatic spring |
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| Country | Link |
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| CN (1) | CN104421374B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431884A (en) * | 2020-10-09 | 2021-03-02 | 恒大恒驰新能源汽车研究院(上海)有限公司 | Air spring additional air chamber, air spring control assembly and vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6182805B1 (en) * | 1998-06-26 | 2001-02-06 | Tokico Ltd. | Damping force control type hydraulic shock absorber |
| US6302248B1 (en) * | 1998-12-24 | 2001-10-16 | Tokico Ltd. | Damping force control type hydraulic shock absorber |
| CN102032311A (en) * | 2009-09-30 | 2011-04-27 | 日立汽车系统株式会社 | Damping force control type shock absorber |
| CN203532618U (en) * | 2013-08-30 | 2014-04-09 | 长春孔辉汽车科技有限公司 | Amplitude induction damping type hydro-pneumatic spring |
-
2013
- 2013-08-30 CN CN201310384682.6A patent/CN104421374B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6182805B1 (en) * | 1998-06-26 | 2001-02-06 | Tokico Ltd. | Damping force control type hydraulic shock absorber |
| US6302248B1 (en) * | 1998-12-24 | 2001-10-16 | Tokico Ltd. | Damping force control type hydraulic shock absorber |
| CN102032311A (en) * | 2009-09-30 | 2011-04-27 | 日立汽车系统株式会社 | Damping force control type shock absorber |
| CN203532618U (en) * | 2013-08-30 | 2014-04-09 | 长春孔辉汽车科技有限公司 | Amplitude induction damping type hydro-pneumatic spring |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431884A (en) * | 2020-10-09 | 2021-03-02 | 恒大恒驰新能源汽车研究院(上海)有限公司 | Air spring additional air chamber, air spring control assembly and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104421374B (en) | 2016-10-05 |
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| C53 | Correction of patent of invention or patent application | ||
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Address after: 130312 Jilin province Changchun Chaoda high tech Industrial Development Zone, Road No. 5177 Applicant after: KH AUTOMOTIVE TECHNOLOGIES (CHANGCHUN) CO.,LTD. Address before: 130012 Jilin province Changchun Chaoda high tech Industrial Development Zone, Road No. 5177 Applicant before: KH AUTOMOTIVE TECHNOLOGIES (CHANGCHUN) Co.,Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: KH AUTOMOTIVE TECHNOLOGIES (CHANGCHUN) CO., LTD. TO: CHANGCHUN KONGHUI AUTOMATIVE TECHNOLOGY CO., LTD. Free format text: CORRECT: ADDRESS; FROM: 130012 CHANGCHUN, JILIN PROVINCE TO: 130312 CHANGCHUN, JILIN PROVINCE |
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Effective date of registration: 20230801 Address after: 313000 Building 1, No. 788 Xifeng Road, South Taihu New District, Wuxing District, Huzhou City, Zhejiang Province Patentee after: Zhejiang Kong Hui Automobile Technology Co.,Ltd. Address before: 130312 No. 5177 Chaoda Road, Changchun High-tech Industrial Development Zone, Jilin Province Patentee before: KH AUTOMOTIVE TECHNOLOGIES (CHANGCHUN) CO.,LTD. |
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| TR01 | Transfer of patent right |