CN201651147U - Large dual-drum high-pressure damper - Google Patents
Large dual-drum high-pressure damper Download PDFInfo
- Publication number
- CN201651147U CN201651147U CN2010201284474U CN201020128447U CN201651147U CN 201651147 U CN201651147 U CN 201651147U CN 2010201284474 U CN2010201284474 U CN 2010201284474U CN 201020128447 U CN201020128447 U CN 201020128447U CN 201651147 U CN201651147 U CN 201651147U
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- Prior art keywords
- cylinder
- clutch release
- release slave
- slave cylinder
- piston
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Abstract
The utility model discloses a large dual-drum high-pressure damper, comprising a working cylinder, a piston assembly and damping oil in the working cylinder, a piston rod on a piston, and a guider at the upper end of the working cylinder, a seal dust cover and a lining ring on the guider, a floating piston arranged at the lower part of the inner cavity of the working cylinder, an air storage cylinder at the outer layer of the working cylinder; a space below the floating piston at the lower part of the working cylinder is communicated with a space between the outer wall of the working cylinder and the inner wall of the air storage cylinder and filled with high-pressure inert gases; and the large dual-drum high-pressure damper is characterized in that the lower cylinder body from the floating piston at the lower part of the working cylinder is larger than the upper cylinder body of the working cylinder in diameter. The middle part of the body of the working cylinder is provided with an annular limit groove which can separate the upper and the lower cylinder bodies with different diameters. The large dual-drum high-pressure damper can adapt to cylinder type hydraulic damper provided with a large piston rod, has advantages of good damping performance, large aeration amount and large buffering impact.
Description
Technical field
The utility model relates to a kind of raising vehicle run stability, especially improves the utensil of vehicle occupant ' comfort level.Specifically, be a kind of clutch release slave cylinder be added with outward gas cylinder, have vehicle hydraulic vibration damper floating piston, that damping performance is good, shock absorbing power is big that has improved.
Background technique
At present, the vibration damper of automobile use all belongs to hydraulic damper basically.Vehicle is jolting when travelling, and the piston rod of hydraulic damper is constantly made fore and aft motion in cylinder body, and the damping oil in the cylinder body constantly by current downflow on the valve block in the valve body, comes shock absorbing power, extenuates degree of jolting.Because piston rod can make the cylinder body volume reduce when stretching in the cylinder body, so can not fill with damping oil fully in the cylinder body.Originally just can not fill with because of the damping oil in the cylinder body again, vibration damper in use also occurs factor such as leakage of oil inevitably and causes oily loss, and the damping oil in the cylinder body can be fewer and feweri.Like this, when vehicle jolts frequent and top width of cloth when big, hysteresis is filled up in the circulation of cylinder body internal damping oil, very easily occurs vacuum area in the cylinder body, and the idle running phenomenon appears in piston in cylinder body.In addition, the oil gas mixing resultant makes damping oil emulsification in the cylinder body, and volume increases, and the piston original lower position of can not working again makes compression damping be increased to unallowable numerical value.And the abnormal sound that noise and vibration are sent can appear during by valve block in emulsification damping oil easily.Especially damping oil especially has some setbacks by valve block under low temperature condition, has a strong impact on damping effect.In recent years, the new technology that the cylinder body lower curtate is filled with pressurized gas appearred.Chinese patent, the patent No. are 200620141855.7, and name is called the patented technology of " the cylinder type hydraulic vibration damper of band floating piston ", in the bottom of cylindrical shell (clutch release slave cylinder) float piston device is installed, and has solved above-mentioned defective substantially.But still there is shortcoming in this technology: as, the volume that charges into pressurized gas is too small, and the vibration damper that can not adapt to big connecting rod uses.The patent No. is " ZL200820164650.X ", name is called the patented technology of " bitubular high-pressure shock absorber ", it comprises, piston rod, guider on the piston assembly in clutch release slave cylinder, the clutch release slave cylinder, damping oil, the piston, sealing and dustproof lid and lining ring above the guider; The clutch release slave cylinder inner chamber is provided with floating piston; Clutch release slave cylinder is provided with gas cylinder outward; The gas cylinder inwall communicates with the clutch release slave cylinder bottom with space between the clutch release slave cylinder outer wall, and the space between whole clutch release slave cylinder bottom and whole gas cylinder inwall and clutch release slave cylinder outer wall is filled with high pressure nitrogen.Added individual gas cylinder owing to establish the clutch release slave cylinder of floating piston, the sealed gas chamber volume is increased, thereby can satisfy the stroke of piston rod to greatest extent, improved the damping performance of vibration damper, be particularly suitable in the vibration damper of big piston bar, using.
But above-mentioned in practice bitubular high-pressure shock absorber still can not satisfy the damping needs when using in weight, large vehicle.The piston rod of the vibration damper that cause is used in weight, large vehicle must be thick.When thick piston rod compressed, the volume that enters in the clutch release slave cylinder also increased, and the downward space of floating piston in the clutch release slave cylinder also can increase simultaneously, and the space under the former like this floating piston will feel not enough.This just must further improve the cylinder body of bitubular high-pressure shock absorber.
Summary of the invention
The purpose of the utility model is to remedy above-mentioned deficiency, to society disclose a kind of with floating piston, damping performance is good, the fill gas scale of construction is big, what shock absorbing power was big can adapt to the cylinder type hydraulic vibration damper that thick piston rod is installed.
The technical solution of the utility model is achieved in that
A kind of big bitubular high-pressure shock absorber, comprise: the guider of the piston rod on the piston assembly in clutch release slave cylinder, this clutch release slave cylinder, damping oil, the piston, clutch release slave cylinder upper end, this sealing and dustproof lid and lining ring above guider, be located at the floating piston of clutch release slave cylinder inner chamber bottom, the outer field gas cylinder of described clutch release slave cylinder, following and this clutch release slave cylinder outer wall of the floating piston of described clutch release slave cylinder bottom communicates with space between described gas cylinder inwall and is filled with high-pressure inert gas; It is characterized in that: from the diameter of the bottom cylinder body of the floating piston of described clutch release slave cylinder bottom diameter greater than the top cylinder body of clutch release slave cylinder.
Described clutch release slave cylinder cylinder body middle part is provided with an annular spacing groove, this restraining groove demarcates the different cylinder body of described upper and lower two-part diameter, and the diameter of the bottom cylinder body that little, the described restraining groove of diameter of the top cylinder body of the clutch release slave cylinder that described restraining groove is above is following is big.
One vent is arranged at described clutch release slave cylinder bottom, and described clutch release slave cylinder outer wall just communicates with the clutch release slave cylinder bottom by vent with space between described air storage barrel.
Described gas cylinder bottom is tightly connected with base, and airspace is arranged at described base and clutch release slave cylinder bottom.
The high-pressure inert gas that space between described clutch release slave cylinder outer wall and described gas cylinder inwall and described clutch release slave cylinder bottom are filled is a nitrogen.
Be provided with air-filled pore in the described base; After inert gas was full of, air-filled pore was firmly sealed.
The utility model advantage compared with prior art is:
Because the diameter of the bottom cylinder body of described clutch release slave cylinder is greater than the diameter of the top cylinder body of clutch release slave cylinder, enlarged the volume of bottom cylinder body, increased the high pressure nitrogen in the bottom cylinder body of clutch release slave cylinder, thereby the piston rod that has solved the vibration damper that uses in heavy, the large vehicle must be thick, and it is big and make the floating piston activity space not enough problem of inferior part of the cylinder block to enter volume in the clutch release slave cylinder during thick piston rod compression.
Because clutch release slave cylinder cylinder body middle part is provided with an annular spacing groove, this restraining groove demarcates the different cylinder body of described upper and lower two-part diameter, the diameter of the bottom cylinder body that little, the described restraining groove of diameter of the top cylinder body of the clutch release slave cylinder that described restraining groove is above is following is big, it is too dark that this restraining groove can avoid the contingency piston to enter cylinder body, and the floating piston working area that piston enters the bottom cylinder body brushes up against floating piston.
Description of drawings
Fig. 1 is the utility model example structure schematic representation (sectional view).
Embodiment
Each reference character title in embodiment's accompanying drawing is:
Piston rod 1, sealing and dustproof lid 2, guider 3, damping oil 4, gas cylinder 5, restraining groove 6, floating piston 7,0 shape seal ring 77, nitrogen 8, vent 9, base 10, air-filled pore 101, airspace 11, clutch release slave cylinder 12, top cylinder body 121, bottom cylinder body 122, piston assembly 13, piston ring 14, lining ring 15.
Below in conjunction with accompanying drawing the utility model is described in further detail.
The utility model embodiment (Fig. 1), a kind of big bitubular high-pressure shock absorber, comprise: the piston rod 1 on the piston assembly 13 in clutch release slave cylinder 12, this clutch release slave cylinder, damping oil 4, the piston, the guider 3 of clutch release slave cylinder 12 upper ends, this sealing and dustproof lid 2 and lining ring 15 above guider, be located at the floating piston 7 of clutch release slave cylinder inner chamber bottom, the outer field gas cylinder 5 of described clutch release slave cylinder, the floating piston of described clutch release slave cylinder 12 bottoms below 7 and these clutch release slave cylinder 12 outer walls communicate with space between described gas cylinder 5 inwalls and be filled with high-pressure inert gas; It is characterized in that: from the diameter of the bottom cylinder body 122 of the floating piston 7 of the band O-ring seals 77 of described clutch release slave cylinder bottom diameter greater than the top cylinder body 121 of clutch release slave cylinder.
Described clutch release slave cylinder 12 cylinder bodies middle part is provided with an annular spacing groove 6, this restraining groove 6 cylinder body 121,122 that described upper and lower two-part diameter is different demarcates, and the diameter of the bottom cylinder body 122 of little, the described restraining groove of diameter below 6 of the top cylinder body 121 of the clutch release slave cylinder 12 of described restraining groove more than 6 is big.
One vent 12 is arranged at described clutch release slave cylinder 12 bottoms, and described clutch release slave cylinder 12 outer walls just communicate with the clutch release slave cylinder bottom by vent 9 with space between described gas cylinder 5 inwalls.
Described gas cylinder 5 bottoms and base 10 are tightly connected, and described base 10 has airspace 11 with the clutch release slave cylinder bottom.
The high-pressure inert gas that space between described clutch release slave cylinder 12 outer walls and described gas cylinder 5 inwalls and described clutch release slave cylinder 12 bottoms are filled is a nitrogen 8.
Be provided with air-filled pore 101 in the described base 10; After inert gas was full of, air-filled pore was firmly sealed.
Claims (6)
1. one kind big bitubular high-pressure shock absorber, comprise: the guider (3) of the piston rod (1) on the piston assembly (13) in clutch release slave cylinder (12), this clutch release slave cylinder, damping oil (4), the piston, clutch release slave cylinder (12) upper end, this sealing and dustproof lid (2) and lining ring (15) above guider, be located at the floating piston (7) of clutch release slave cylinder inner chamber bottom, the outer field gas cylinder of described clutch release slave cylinder (5), following and this clutch release slave cylinder (12) outer wall of the floating piston (7) of described clutch release slave cylinder (12) bottom communicates with space between described gas cylinder (5) inwall and is filled with high-pressure inert gas; It is characterized in that: from the diameter of the bottom cylinder body (122) of the floating piston (7) of described clutch release slave cylinder bottom diameter greater than the top cylinder body (121) of clutch release slave cylinder.
2. big bitubular high-pressure shock absorber according to claim 1, it is characterized in that, the cylinder body middle part of described clutch release slave cylinder (12) is provided with an annular spacing groove (6), this restraining groove (6) cylinder body (121,122) that described upper and lower two-part diameter is different demarcates, and the diameter of the bottom cylinder body (122) that little, the described restraining groove of diameter (6) of the top cylinder body (121) of the clutch release slave cylinder (12) that described restraining groove (6) is above is following is big.
3. big bitubular high-pressure shock absorber according to claim 1 and 2, it is characterized in that, one vent (12) is arranged at described clutch release slave cylinder (12) bottom, and described clutch release slave cylinder (12) outer wall just communicates with the clutch release slave cylinder bottom by vent (9) with space between described gas cylinder (5) inwall.
4. big bitubular high-pressure shock absorber according to claim 3 is characterized in that, the base (10) under described gas cylinder (5) bottom and the gas cylinder is tightly connected, and described base (10) has airspace (11) with the clutch release slave cylinder bottom.
5. bitubular high-pressure shock absorber according to claim 4 is characterized in that, the high-pressure inert gas that space between described clutch release slave cylinder (12) outer wall and described gas cylinder (5) inwall and described clutch release slave cylinder (12) bottom are filled is nitrogen (8).
6. big bitubular high-pressure shock absorber according to claim 5 is characterized in that, is provided with air-filled pore (101) in the described base (10); After inert gas was full of, air-filled pore was firmly sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201284474U CN201651147U (en) | 2010-03-11 | 2010-03-11 | Large dual-drum high-pressure damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201284474U CN201651147U (en) | 2010-03-11 | 2010-03-11 | Large dual-drum high-pressure damper |
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| Publication Number | Publication Date |
|---|---|
| CN201651147U true CN201651147U (en) | 2010-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201284474U Expired - Fee Related CN201651147U (en) | 2010-03-11 | 2010-03-11 | Large dual-drum high-pressure damper |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103007470A (en) * | 2012-12-06 | 2013-04-03 | 浙江工业大学 | Gas-liquid buffered high-pressure gas water bomb launcher |
| CN104364552A (en) * | 2012-05-30 | 2015-02-18 | 北京京西重工有限公司 | A suspension damper assembly |
| CN106438813A (en) * | 2016-11-09 | 2017-02-22 | 合肥江瑞汽车零部件有限公司 | Vehicle damper |
| CN108119429A (en) * | 2017-12-19 | 2018-06-05 | 柳州柳工液压件有限公司 | Single-action hydrocylinder |
-
2010
- 2010-03-11 CN CN2010201284474U patent/CN201651147U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104364552A (en) * | 2012-05-30 | 2015-02-18 | 北京京西重工有限公司 | A suspension damper assembly |
| CN103007470A (en) * | 2012-12-06 | 2013-04-03 | 浙江工业大学 | Gas-liquid buffered high-pressure gas water bomb launcher |
| CN106438813A (en) * | 2016-11-09 | 2017-02-22 | 合肥江瑞汽车零部件有限公司 | Vehicle damper |
| CN108119429A (en) * | 2017-12-19 | 2018-06-05 | 柳州柳工液压件有限公司 | Single-action hydrocylinder |
| CN108119429B (en) * | 2017-12-19 | 2021-04-23 | 柳州柳工液压件有限公司 | Single-acting hydraulic oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo Nanfang Shock Absorber Manufacture Co., Ltd. Assignor: Li Mingfu Contract record no.: 2011330001422 Denomination of utility model: Large dual-drum high-pressure damper Granted publication date: 20101124 License type: Exclusive License Record date: 20111128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20140311 |