CN100392281C - Hydraulic bidirection return stroke damper - Google Patents
Hydraulic bidirection return stroke damper Download PDFInfo
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- CN100392281C CN100392281C CNB2005100173410A CN200510017341A CN100392281C CN 100392281 C CN100392281 C CN 100392281C CN B2005100173410 A CNB2005100173410 A CN B2005100173410A CN 200510017341 A CN200510017341 A CN 200510017341A CN 100392281 C CN100392281 C CN 100392281C
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Abstract
The present invention relates to a hydraulic bidirectional return damper which is composed of three hydraulic cylinders with different functions: a vibration cylinder (1), a compression cylinder (2) and a stretching cylinder (3), wherein a piston and a piston rod are arranged in the vibration cylinder. Pistons and elastic elements are arranged in the compression cylinder and the stretching cylinder. The vibration cylinder, the compression cylinder and the stretching cylinder are mutually communicated via connecting pipes in which check valves are arranged. When a wheel accepts upward shock and vibration, the check valve (12) is opened, and oil quickly flows into the compression cylinder through the vibration cylinder; when the wheel stops rising, the check valve (12) is closed, and the oil can slowly flow back to the vibration cylinder only via a small through hole. Likewise, when the wheel moves downwards, the check valve (13) is opened, and the oil quickly flows into the vibration cylinder through the stretching cylinder; when the wheel stops descending, the check valve (13) is closed, and the oil can slowly flow back to the stretching cylinder only via a small through hole. Thus, the present invention truly realizes the purpose of bidirectional return damping.
Description
Technical field
The present invention relates to a kind of vibration damping equipment, the Hydraulic pressure two-way backward stroke damping snubber that especially various vehicles use.
Background technique
At present, various vehicles in order to slow down vibration, have all used damping element and vibration damper in the process of moving, as leaf spring, spring, spring-air damping vibration damper, hydraulic shock absorber, oil gas combination vibration damper etc.As by there being undamped can be divided into two classes, i.e. undamped vibration damper and damping shock absorber is arranged.The undamped vibration damper is when running into impact shock, and reaction velocity is fast, but it is also fast to reset, and can cause flutter even resonance, and effectiveness in vibration suppression is obviously bad.Used now or known vibration damper all belongs to basically damping shock absorber is arranged, its vibration attenuation mechanism is extension and the compression that the damping force when utilizing the frictional force of damping member or utilizing fluid by aperture stops elastic element, absorb the energy of vibration, its advantage is that after wheel was subjected to impact shock, wheel resetted slow slightly, shortcoming is, when wheel is subjected to impact shock and since resistance of shock absorber the extension and the compression of elastic element, first shake the sense more obvious than undamped vibration damper on the contrary.
Summary of the invention
In order to overcome above-mentioned shortcoming of the prior art, the real Vehicle damper effect that improves, it is a kind of when wheel is subjected to impact shock that purpose of the present invention will provide exactly, vibration damper is the not extension of damped elasticity element and compression substantially, alleviate first sense of shaking as far as possible, and after impact shock finished, vibration damper but can stop the extension and the compression of elastic element to greatest extent, can effectively elongate the vibration damper of the suitable various vehicles uses of vibration wavelength.
Achieve the above object, the present invention realizes by following proposal, it includes oil hydraulic cylinder, elastic element, piston assembly, piston rod, one-way valve, connecting tube and hydraulic oil, its structural feature is: oil hydraulic cylinder involving vibrations cylinder, compression cylinder and extension cylinder, in the vibration cylinder piston assembly and piston rod are arranged, on the vibration cylinder oil hole is arranged, one end has piston rod guiding and plug, in compression cylinder and the extension cylinder piston assembly and elastic element are arranged all, one end all has plug, between vibration cylinder and the compression cylinder, the vibration cylinder all is communicated with by connecting tube between the cylinder with extension, one-way valve is all arranged in the connecting tube, all have small through hole on the valve of one-way valve, also be communicated with between extension cylinder and the compression cylinder by connecting tube, one-way valve is arranged in the connecting tube, and this one-way valve just can be opened when only the oil pressure difference between compression cylinder and extension cylinder is greater than certain numerical value.
The present invention compared with prior art, have the following advantages: 1, two-way damping recovery stroke, when the vehicle smooth running, the vibration cylinder, uphold cylinder, oil pressure in the compression cylinder is identical, when wheel is subjected to upwards impact shock, piston rod moves upward, one-way valve between vibration cylinder and the compression cylinder is open-minded, fluid flows into compression cylinder by the vibration cylinder rapidly, elastic element in the compression cylinder is compressed, other has sub-fraction fluid to flow into the extension cylinder by small through hole, the damping function that the damping function that this moment, vibration damper moved upward to piston rod only has elastic component basically, effect is near the undamped vibration damper, when piston rod stops to rise, the closed check valve between vibration cylinder and the compression cylinder, fluid can only slowly flow back to the vibration cylinder by compression cylinder by small through hole, compressed elastic element can only slowly be upheld in the compression cylinder, thereby the recovery stroke after the vibration is become slowly and steadily; In like manner, when wheel runs into pit or descending, piston rod moves downward, the one-way valve of upholding this moment between cylinder and the vibration cylinder is open-minded, fluid flows into the vibration cylinder by upholding cylinder rapidly, the elastic element of upholding in the cylinder is upheld, fluid in the compression cylinder also can flow into vibration cylinder sub-fraction by small through hole, and at this moment, vibration damper is to the basic undamped effect of moving downward of piston rod, when piston rod stops to descend, uphold the closed check valve between cylinder and the vibration cylinder, at this moment fluid can only slowly flow back to the extension cylinder by the vibration cylinder by small through hole, and the elastic element of upholding after upholding in the cylinder can only be compressed at leisure, thereby recovery stroke is become slowly and steadily, really realized
And the purpose of vibration damping; 2, the present invention has very strong flexibility, and according to the needs of different vehicle installing space, compression cylinder, extension cylinder both can be combined with the vibration cylinder, formed different shapes, can be installed separately in different places with the vibration cylinder again; 3, the present invention has adaptability widely, when vehicle travels on different road surfaces, can be by oil hole oiling or outwards drain the oil in cylinder, and can make the chassis of vehicle raise or reduce, to adapt to the needs that travel on different road surfaces; 4, effectiveness in vibration suppression can be brought up to extreme value, according to the needs of different vehicle installing space, can increase the cylinder diameter of compression cylinder and extension cylinder as far as possible, also can increase compression cylinder and uphold the quantity of cylinder, ratio between compression cylinder and the extension total cylinder diameter of cylinder and the vibration cylinder cylinder diameter is big more, and effectiveness in vibration suppression is just good more.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing:
Fig. 1 is structural representation of the present invention and distributed structure embodiment
Fig. 2 is integral structure embodiment 1 of the present invention
Fig. 3 is integral structure embodiment 2 of the present invention
Fig. 4 is integral structure embodiment 3 of the present invention
In the accompanying drawing: 1. vibrate cylinder, 2. compression cylinder is 3. upheld cylinder, 4. piston assembly, 5. piston rod, 6. piston assembly, 7. elastic element, 8. piston assembly, 9. elastic element, 10. connecting tube, 11. connecting tubes, 12. one-way valves, 13. one-way valve, 14. connecting tubes, 15. one-way valves, 16. oil hole, 17. piston rods guiding and plug, 18. connecting pins, 19. the compression cylinder plug, 20. uphold cylinder plug, 21. dividing plates.
Vibration cylinder 1: have oil hole 16 on the vibration cylinder 1, piston assembly 4 and piston rod 5 are arranged in the cylinder, an end of cylinder has guiding and plug 17.
Compression cylinder 2: compression cylinder has piston assembly 6 and elastic element 7, one ends that plug 19 is arranged for 2 li.
Uphold cylinder 3: upholding cylinder has piston assembly 8 and elastic element 9, one ends that plug 20 is arranged for 3 li.
Connecting tube 10: connecting tube 10 is communicated with vibration cylinder 1 and compression cylinder 2, and managing 10 li has one-way valve 12, has small through hole on the valve of one-way valve 12.
Connecting tube 11: connecting tube 11 is communicated with vibration cylinder 1 and upholds cylinder 3, and managing 11 li has one-way valve 13, has small through hole on the valve of one-way valve 13.
Connecting tube 14: connecting tube 14 is communicated with upholds cylinder 3 and compression cylinder 2, and managing 14 li has one-way valve 15.
Embodiment
In the embodiment shown in fig. 1, compression cylinder 2, extension cylinder 3 and vibration cylinder 1 are installed separately in different places, be communicated with by connecting tube 10 between vibration cylinder 1 and the compression cylinder 2, connecting tube has one-way valve 12 for 10 li, vibration cylinder 1 is communicated with by connecting tube 11 between the cylinder 3 with extension, connecting tube has one-way valve 13 for 11 li, and compression cylinder 2 is communicated with by connecting tube 14 with upholding between the cylinder 3, and connecting tube has one-way valve 15 for 14 li.
In the embodiment of Fig. 2, vibration cylinder 1 and compression cylinder 2 are combined into one, and the centre is separated by dividing plate 21, uphold cylinder 3 and accomplish 5 li in piston rod, and one-way valve 12 is installed on the dividing plate 21, and one-way valve 13 is installed in the piston assembly 4.
In the embodiments of figure 3, vibration cylinder 1 is installed to compression cylinder 2 the insides, and the two forms one, upholds cylinder 3 and accomplishes 5 li in piston rod, and one-way valve 12 is installed on the casing wall of vibration cylinder 1, and one-way valve 13 is installed in the piston assembly 4.
In the embodiment of Fig. 4, vibration cylinder 1 and compression cylinder 2 to together, are upheld cylinder 3 and are accomplished 5 li in piston rod side by side, and one-way valve 12 is installed on the casing wall of vibration cylinder 1 and compression cylinder 2, and one-way valve 13 is installed in the piston assembly 4.
Claims (3)
1. Hydraulic pressure two-way backward stroke damping snubber, oil hydraulic cylinder is arranged, piston rod, piston assembly, one-way valve, connecting tube, elastic element, hydraulic oil, it is characterized in that: oil hydraulic cylinder involving vibrations cylinder (1), compression cylinder (2) and extension cylinder (3), there are piston assembly (4) and piston rod (5) in vibration cylinder (1) lining, one end of vibration cylinder has piston rod guiding and plug (17), on the vibration cylinder (1) oil hole (16) is arranged, there are piston assembly (6) and elastic element (7) in compression cylinder (2) lining, one end has compression cylinder plug (19), uphold cylinder (3) lining piston assembly (8) and elastic element (9) are arranged, one end has the cylinder plug (20) of extension, the vibration cylinder (1) with compression cylinder (2) between be communicated with by connecting tube (10), there is one-way valve (12) connecting tube (10) lining, have small through hole on the valve of one-way valve (12), be communicated with by connecting tube (11) between vibration cylinder (1) and extension cylinder (3), there is one-way valve (13) connecting tube (11) lining, have small through hole on the valve of one-way valve (13), compression cylinder (2) is communicated with by connecting tube (14) with upholding between the cylinder (3), and there is one-way valve (15) connecting tube (14) lining.
2. a kind of Hydraulic pressure two-way backward stroke damping snubber according to claim 1, it is characterized in that: the fluid circulating direction of one-way valve (12) is for flowing to compression cylinder (2) from vibration cylinder (1), the fluid circulating direction of one-way valve (13) is to flow to vibration cylinder (1) from upholding cylinder (3), the fluid circulating direction of one-way valve (15) is to flow to from compression cylinder (2) to uphold cylinder (3), and one-way valve (15) just can be opened when only the oil pressure difference between compression cylinder (2) and extension cylinder (3) is greater than a certain special value.
3. a kind of Hydraulic pressure two-way backward stroke damping snubber according to claim 1 is characterized in that: vibration cylinder (1) is one, and compression cylinder (2) and extension cylinder (3) can have a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100173410A CN100392281C (en) | 2005-01-25 | 2005-01-25 | Hydraulic bidirection return stroke damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100173410A CN100392281C (en) | 2005-01-25 | 2005-01-25 | Hydraulic bidirection return stroke damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1811219A CN1811219A (en) | 2006-08-02 |
| CN100392281C true CN100392281C (en) | 2008-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100173410A Expired - Fee Related CN100392281C (en) | 2005-01-25 | 2005-01-25 | Hydraulic bidirection return stroke damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100392281C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019578B (en) * | 2014-05-26 | 2016-03-30 | 袁刚 | A kind of automobile shock compression refrigerating system |
| CN104895993B (en) * | 2015-06-09 | 2017-03-01 | 马鞍山市秋枫工程塑料异型材料制造有限责任公司 | A kind of Multicarity recoil damping device |
| CN108343699A (en) * | 2018-05-01 | 2018-07-31 | 宋金博 | A kind of flexible shock absorber of the fluid pressure type that can reduce rail transit noise |
| CN113294478B (en) * | 2021-06-17 | 2022-04-22 | 常州大学 | Damping force is directly proportional to liquid damper of displacement |
| CN115435039A (en) * | 2022-08-31 | 2022-12-06 | 高洪涛 | Shock absorber assembly |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5896959A (en) * | 1997-03-13 | 1999-04-27 | Avm, Inc. | Bi-directional damper with a self-centering mechanism |
| CN2388413Y (en) * | 1998-09-14 | 2000-07-19 | 苗子明 | Vehicle shock-absorber |
| JP2000213583A (en) * | 1999-01-25 | 2000-08-02 | Nissan Motor Co Ltd | Multistage shock absorber |
| JP2000266100A (en) * | 1999-03-16 | 2000-09-26 | Nissan Motor Co Ltd | Multistage shock absorber |
| CN1095530C (en) * | 1999-12-26 | 2002-12-04 | 崔东灿 | Two-tage hydraulic damping shock absorber |
| CN2596101Y (en) * | 2002-12-27 | 2003-12-31 | 上海汇众汽车制造有限公司 | Electrorheologic liquid adjustable shock adsorber |
| CN2628803Y (en) * | 2003-06-16 | 2004-07-28 | 四川川南减震器集团有限公司 | High-pressure oil-gas separating rear shock damper |
-
2005
- 2005-01-25 CN CNB2005100173410A patent/CN100392281C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5896959A (en) * | 1997-03-13 | 1999-04-27 | Avm, Inc. | Bi-directional damper with a self-centering mechanism |
| CN2388413Y (en) * | 1998-09-14 | 2000-07-19 | 苗子明 | Vehicle shock-absorber |
| JP2000213583A (en) * | 1999-01-25 | 2000-08-02 | Nissan Motor Co Ltd | Multistage shock absorber |
| JP2000266100A (en) * | 1999-03-16 | 2000-09-26 | Nissan Motor Co Ltd | Multistage shock absorber |
| CN1095530C (en) * | 1999-12-26 | 2002-12-04 | 崔东灿 | Two-tage hydraulic damping shock absorber |
| CN2596101Y (en) * | 2002-12-27 | 2003-12-31 | 上海汇众汽车制造有限公司 | Electrorheologic liquid adjustable shock adsorber |
| CN2628803Y (en) * | 2003-06-16 | 2004-07-28 | 四川川南减震器集团有限公司 | High-pressure oil-gas separating rear shock damper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1811219A (en) | 2006-08-02 |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wuhan Winmind Technology Development Co., Ltd. Assignor: Wang Baoguo Contract fulfillment period: 2009.6.10 to 2025.1.24 contract change Contract record no.: 2009990000671 Denomination of invention: Hydraulic bidirection return stroke damper Granted publication date: 20080604 License type: General permission Record date: 2009.6.17 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: COMMON LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.6.10 TO 2025.1.24; CHANGE OF CONTRACT Name of requester: WUHAN WINMIND TECHNOLOGY DEVELOPMENT CO.,LTD Effective date: 20090617 |
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| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Wuhan Winmind Technology Development Co., Ltd. Assignor: Wang Baoguo Contract record no.: 2009990000671 Date of cancellation: 20100416 |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080604 Termination date: 20110125 |