CN2685651Y - Oil-gas separating vibrating reducer for motor vehicle - Google Patents
Oil-gas separating vibrating reducer for motor vehicle Download PDFInfo
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- CN2685651Y CN2685651Y CN 03252850 CN03252850U CN2685651Y CN 2685651 Y CN2685651 Y CN 2685651Y CN 03252850 CN03252850 CN 03252850 CN 03252850 U CN03252850 U CN 03252850U CN 2685651 Y CN2685651 Y CN 2685651Y
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- piston
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- motor vehicle
- vibration damper
- connecting rod
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Abstract
The utility model relates to a motor vehicle vibrating reducer, in particular to an oil-gas separating vibrating reducer for motor vehicle. The oil-gas separating vibrating reducer for motor vehicle comprises a piston connecting rod unit assemblage 4, a cylinder tube unit assemblage 1, and an oil seal unit assemblage 5. The utility model is characterized in that the inner cavity of the cylinder tube is divided into an air chamber and an oil storage chamber by a floating piston unit assemblage 2, the piston connecting rod unit assemblage comprises a connecting rod assembly 18 and a piston 31 with valves, and the piston 31 of the piston connecting rod unit assemblage is arranged in the oil storage chamber of the cylinder tube. The utility model has the advantages of simple structure, few components, convenient manufacture, good vibration reducing effect, safe and stable use, etc.
Description
One, technical field
The utility model relates to a kind of motor vehicle damper, particularly Motor Vehicle oil gas separated type vibration damper.
Two, background technique
Existing Motor Vehicle all adopts the vibration damper of double-barrel structure, divides two classes.One class is pure hydraulic type vibration damper, and its main structure is made up of cylinder tube, Piston and rod assembly and valve system, fuel tank assembly, foot valve seat assembly, oil seal assembly and shock absorber fluid six big parts.The compression valves system that shock absorber fluid is opened above the piston during connecting rod compression enters the cylinder tube epicoele by piston hole, and unnecessary oil is opened bottom valve seat valve system and entered fuel tank; The air of fuel tank enters the cylinder tube epicoele by oil sealing base hole system and compensates the formation circulation simultaneously.The rebound valve system that shock absorber fluid was opened below the piston when connecting rod was upheld enters cavity of resorption by piston hole, and this moment, cavity of resorption formed negative pressure, and the oil of fuel tank is opened bottom valve seat valve system and compensated to the cylinder tube cavity of resorption; The cylinder tube epicoele is a malleation simultaneously, and oil and air are compressed to fuel tank by oil sealing base hole system and form circulation.Shock absorber fluid and air fully mix in cyclic process, produce emulsion inevitably.
Two classes are the hybrid vibration dampers of oil gas.Its structure is the same with pure hydraulic type vibration damper, just adds low-pressure nitrogen in fuel tank.Basic circulation theory is the same with oleo-gear.Just the active of the low-pressure nitrogen of fuel tank compensates to the oil of fuel tank the cavity of resorption of cylinder tube when connecting rod is upheld.Same shock absorber fluid and gas fully mix in cyclic process, produce emulsion inevitably.The oil gas mixing vibration damper of domestic production at present has mistaken ideas, thinks that adding nitrogen in common vibration damper is exactly oil gas mixing vibration damper.Because existing connecting rod manufacturing technology and oil sealing are not the specialized designs manufacturings, so the air pressure holding time is very short, up-to-standard rate is extremely low.
In addition, the shock absorber fluid viscosity index of domestic use is higher, also is one of reason that produces emulsification.
What now the front shock absorber that uses designed all is major diameter connecting rod (requirement of strength).The Volume Changes of connecting rod turnover cylinder tube is bigger, and the oil pressure compensation problem can't solve.
In sum, there is following problem in present known vibration damper:
1, because fuel tank is the easy production idle running of free air-capacitor, the vibration damper damping performance is undesirable;
2, owing to have air and shock absorber fluid to produce emulsification in the vibration damper, damping performance is undesirable;
3, Motor Vehicle stops not time spent vibration damper inner fluid leakage, makes air enter operating cylinder, and the damping effect extreme difference produces so-called " disease in morning ";
4, for avoiding the vibration damper leakage of oil, to oil sealing material and connecting rod manufacture process requirement height, cost of production height;
5, complex structure is installed, uses inconvenient;
6, damper link generates heat easily, burns out, is out of shape, and causes vibration damper short working life;
Three, summary of the invention
The utility model is exactly to design a kind of simple in structure, safe in utilization, steady quality, Motor Vehicle oil gas separated type vibration damper easy for installation for the deficiency that remedies above-mentioned technology, it includes Piston and rod assembly, floating piston assembly cylinder tube assembly and oil seal assembly, it is characterized in that: the cylinder tube inner chamber is divided into air chamber and accumulator by the floating piston assembly, Piston and rod assembly includes the piston of connecting rod assembly and band valve system, and the piston of Piston and rod assembly is in the cylinder tube accumulator.
The utility model compared with prior art has simple, the advantages such as component are few, easily manufactured, good damping effect, safety and stability of structure.
Four, description of drawings
Fig. 1 is the utility model example structure schematic representation;
Fig. 2 is a cylinder tube assembly structure schematic representation;
Fig. 3 is a casing assembly structure schematic representation;
Fig. 4 is a floating piston assembly structure schematic representation;
Fig. 5 is the Piston and rod assembly structural representation;
Fig. 6 is the connecting rod assembly structural representation;
Fig. 7 is the oil seal assembly structural representation;
Fig. 8 is the main assemblage of spring structural representation.
Among the figure: 1, cylinder tube assembly; 2, floating piston assembly; 3, casing assembly; 4, Piston and rod assembly; 5, oil seal assembly; 6, bracket assembly; 7, spring holder assembly; 8, cylinder tube; 9, bottom; 10, dust ring; 11, capping; 12, casing; 13, spring holder assembly; 14, dust cover; 15, floating piston; 16, O type Xinmi City seal 1; 17, O type Xinmi City seal 2; 18, connecting rod assembly; 19, nut; 20, packing ring; 21, uphold valve block 1; 22, uphold valve block 2; 23, uphold valve block 3; 24, uphold valve block 4; 25, uphold valve block 5; 26, compression valve block 4; 27, compression valve block 3; 28, compression valve block 2; 29, compression valve block 1; 30, piston ring; 31, piston; 32, position limit socket; 33, O type collar; 34, valve; 35, connecting rod; 36, spool; 37, valve rod; 38, O RunddichtringO; 39, control fork; 40, regulator; 41, steel ball; 42, retaining spring; 43, snubber, 44, collar; 45, oil sealing base; 46, lining; 47, O RunddichtringO; 48 oil sealings; 49 trim rings; 52, spring holder; 53, inner nut; 54, outer nut; 55, nut.
In Fig. 1, cylinder tube assembly 1 bottom adds the 2-3Mpa high pressure nitrogen, is pressed into floating piston assembly 2, and floating piston assembly 2 can slidably reciprocate in cylinder tube assembly 1, but must not leak high pressure nitrogen.Piston and rod assembly 4 enters by cylinder tube assembly 1 one ends, and with piston ring 30 sealings, Piston and rod assembly 4 can be free to slide in cylinder tube assembly 1.Add shock absorber fluid, and guarantee that epicoele does not have air.Be pressed into oil seal assembly 5, shock absorber fluid is sealed up, connecting rod 35 stretches out outside the cylinder tube 8 by oil sealing 48 holes.Cylinder tube 8 and oil seal assembly 5 seal by O RunddichtringO 47, and spacing to oil seal assembly 5 with pressure processing craft.Stretch out outer connecting rod 35 usefulness the screw threads of cylinder tube 8 and the dust cover 14 of casing assembly 3 and be connected, connect assembly 2 with casing and fuse with nut is fastening.Casing assembly 3 and cylinder tube 8 are the 0.05-0.10 Spielpassung, and are free to slide.
Casing assembly 3 had both compensated the deficiency of connecting rod 35 intensity, again by the turbidity test of dust ring 10 proofing dust and protecting cylinder tubes 8 and connecting rod 35, prolonged the life-span of vibration damper.Spring holder assembly 7 is connected with casing 2 by screw thread, and adjustable spring pressure.
In Fig. 2, low cover 9 and be pressed into cylinder tube 8 backs and weld firm welding with the CO2 protection, pressure testing 4.5Mpa must not leak, surperficial degree hard chrome 0.015-0.02.
In Fig. 3, capping 11 is connected with casing 12 usefulness fine threads; Dust ring 10 utilizes ring shaped slot to connect.Spring holder assembly 13 and casing 12 usefulness M52X2 are threaded, and spacing with nut 55.Dust cover 14 and casing 12 usefulness fine threads are connected firmly.
In Fig. 4, among the circular groove of the floating piston 15 of O RunddichtringO 1 (16) and two matrixs of O RunddichtringO 2 (17) importings, two seal rings must not have breakage and scuffing, and the surface also applies the YM102 grease.
In Fig. 5, in regular turn O type collar 33, position limit socket 32, compression valve block (26-29), piston 31, uphold pack into an end of connecting rod assembly 18 of valve block (21-25), packing ring 20, compress with nut 19, and riveting is firm.Piston ring 30 is bonded to piston 31 surfaces.
In Fig. 6, two O RunddichtringOs 38 are contained on the circular groove of spool 36, again valve rod 37 and spool 36 usefulness are threaded, in connecting rod 35 holes of packing into after, be pressed into valve 34 interference fit.Pack into control fork 39 and valve rod 37 usefulness of rear end are threaded.Reinstall regulator 40, retaining spring 42, steel ball 41, collar 44, snubber 43, so just form the needle-valve regulating system of connecting rod.
In Fig. 7, lining 46 is pressed in oil sealing base 45 holes, oil sealing 48 adjacent linings 46, and trim ring 49 is pushed down oil sealing 48, and utilizes aluminum alloy oil sealing base 45 trim ring 49 of riveting tightly.O RunddichtringO 47 is inserted in the circular groove of oil sealing base 45, and oil seal assembly 5 surfaces are coated with grease No. 2.
In Fig. 8, spring holder 52 is pressed into inner nut 53 interference fit, and outer nut 54 and spring holder 52 are threaded and compress.
Five, embodiment
Below in conjunction with accompanying drawing the utility model is further described.
A kind of Motor Vehicle oil gas separated type vibration damper, it includes Piston and rod assembly 4, cylinder tube assembly 1 and oil seal assembly 5, it is characterized in that: the cylinder tube inner chamber is divided into air chamber and accumulator by floating piston assembly 2, Piston and rod assembly 4 includes the piston 31 of connecting rod assembly 18 and band valve system, and the piston 31 of Piston and rod assembly is in the cylinder tube accumulator; At the intrinsic position limit socket 32 in Piston and rod assembly upper piston 31 rear portions, this position limit socket and nut 19 fixed pistons 31 are on connecting rod 35; Its opposite position has the groove for collar 33 engagings on position limit socket and connecting rod ASSY.The floating piston assembly is by floating piston and be embedded in outer garden circular groove inner seal ring 1,2 and form, and floating piston 15 is a concave surface towards the face of air chamber and accumulator.At the cylinder tube outer sliding sleeve casing assembly 3 is arranged, the Piston and rod assembly rear portion is fixed in the casing, built-in spring disc assembly 7 on casing.The spring holder assembly is threaded on the casing by inner nut 53.The nut of fixing spring dish on casing is that inner nut 53, outer nut 54 and nut 55 constitute.But air chamber is the plenum chamber of bearing capacity 2-3Mpa.Connecting rod hollow, there is valve 34 its end, and spool 36 and seal ring 38 are arranged behind valve, and valve rod 37 is arranged behind seal ring, and regulator 40 is arranged behind valve rod, and the through hole corresponding with the hole on the snubber arranged on the spool respective link.The diameter of connecting rod is less than 13mm.Lining 46 is fixed in oil sealing base 45 holes, and oil sealing 48 is fixed in oil sealing base 45 holes and is close on the oil lining 46, and oil sealing compresses the back riveted with trim ring 49, and oil sealing base 45 outer walls have two grooves.
The utility model working principle is as follows:
As shown in Figure 1, Oil-gas Separation formula vibration damper solves technology that its technical problem adopts and puts case and be: the inner monotubular structure that adopts the without bottom valve base system.The 2.8MPa high pressure nitrogen is injected in chamber, the end, and top is the low viscosity shock absorber fluid of special development, between separate with aluminum alloy floating piston assembly 2.Piston 31 adopts the pass system of special big flow.Connecting rod assembly 18 adopts adjustable needle-valve 34 and 36 controls to show the merit data.During the wheel vertical tremor, working piston 31 is reciprocating in fluid, make between the epicoele of working piston 31 and the cavity of resorption and produce pressure reduction, the oil that is stressed is pushed the needle-valve system (34-44) of compression valves system (26-29) and rebound valve system (21-25) and connecting rod open and is flowed back and forth, stretch and compression damping power thereby produce, make the vibration energy of vehicle body and vehicle frame change into heat realization energy conservation, thereby absorbed by fluid and vibration damper housing, be dispersed in the air, reduce the vibrations of vehicle.When vehicle driving during on the portland cement road surface, road surface convex-concave drop is less, and the high pressure nitrogen of bottom is by compression or expand and produce a kind of flexible damping force, almost completely absorbs the vibrations that bring on the road surface.When wheel is advanced into moment of big projection, during connecting rod 35 compressions, piston 31 adopts big metering orifice system, compression valves system (26-29) and low viscosity shock absorber fluid, and resistance to compression pression is less.Connecting rod 35 is compressed rapidly, and vehicle body relative vibration amplitude is little.When wheel leaves moment of projection, when connecting rod 35 was upheld, piston 31 adopted big metering orifice system, rebound valve system (21-25) and low viscosity shock absorber fluid, and the extension resistance is less.Connecting rod 35 is protruding under the damping spring thrust, and cylinder tube 8 cavity of resorptions form negative pressure, and at this moment the high pressure nitrogen in chamber, the end expands rapidly, not only compensate the negative pressure of cavity of resorption, also utilize the swelling pressure to force connecting rod 35 to lead fast protruding support vehicle body, vehicle vibrations amplitude of vibration is reduced, it is more steady to travel.
Because shock absorber fluid and high pressure nitrogen separate, and have eliminated the shock absorber fluid emulsion.
Vibration damper also adopts the minor diameter connecting rod, has reduced the Volume Changes of connecting rod turnover cylinder tube, and this small Volume Changes, can compensate by moving up and down of floating piston assembly 2.
This structure oil sealing 48 adopts new structure and new materials, and coupler link 35 special roughness 0.05 and MICRO-CRACK CHROMIUM PLATING technology solved connecting rod 35 heatings, distortion and scratch, and the problem of vibration damper leakage of oil is resolved, the life-span be common vibration damper 3-4 doubly.
Owing to be small rod 35, this structural design casing 12 guiding techniques have solved the strength problem of vibration damper, make this Oil-gas Separation technology become feasible.
The utility model advantage is as follows:
1, structural design uniqueness, vibration damper and suspension assembling are easier, particularly are convenient to repair.During the maintenance vehicle vibration damper, spring pressure can be adjusted arbitrarily as required, the sizing assembling before having overcome;
2, vibration damper can be along dress, also can upside-down mounting (common vibration damper can not upside-down mounting), be not subjected to positive and negative influence;
3, because the interior no air of epicoele so vibration damper does not have idle running, thoroughly solves the insurmountable idle running phenomenon of common dual-tube shock absorber.
4, function admirable, road feel should be highly sensitive.When particularly automobile low speed was exercised, the pressurized gas in the low chamber of vibration damper cooperated the shock-absorbing effect of shock absorber fluid good especially, and automobile running is very steady.Running at high speed runs into road surface Piston and rod assembly device of the present utility model when rough and uneven in surface, and amplitude of vibration that can automatic Control of Automobile makes automobile running steady in 8mm, has improved driver and passenger's Security and comfortable feel, makes and drives to feel hommization.
5, on oil sealing, adopt special construction, the life-span of vibration damper is reached more than 200,000 kilometers;
6, the utility model adopts totally-enclosed dustproof construction technology, has solved the insurmountable oil sealing of present vibration damper structure and has advanced the sand and dust problem;
7, internal structure is simple, can realize the disposable assembling of automation;
8, Oil-gas Separation is thoroughly eliminated " disease in morning ".
Claims (11)
1, a kind of Motor Vehicle oil gas separated type vibration damper, it includes Piston and rod assembly (4), cylinder tube assembly (1) and oil seal assembly (5), it is characterized in that: the cylinder tube inner chamber is divided into air chamber and accumulator by floating piston assembly (2), Piston and rod assembly includes the piston (31) of connecting rod assembly (18) and band valve system, and the piston of Piston and rod assembly (31) is in the cylinder tube accumulator.
2, Motor Vehicle oil gas separated type vibration damper as claimed in claim 1, it is characterized in that: at the intrinsic position limit socket in Piston and rod assembly upper piston (31) rear portion (32), this position limit socket and nut (19) fixed piston (31) is on connecting rod (35).
3, Motor Vehicle oil gas separated type vibration damper as claimed in claim 1 is characterized in that: its opposite position has the groove for collar (33) engaging on position limit socket and connecting rod ASSY.
4, Motor Vehicle oil gas separated type vibration damper as claimed in claim 1 is characterized in that: the floating piston assembly is by floating piston and be embedded in outer garden circular groove inner seal ring 1,2 and form, and floating piston (15) is a concave surface towards the face of air chamber and accumulator.
5, Motor Vehicle oil gas separated type vibration damper as claimed in claim 1, it is characterized in that: at the cylinder tube outer sliding sleeve casing assembly (3) is arranged, the Piston and rod assembly rear portion is fixed in the casing, built-in spring disc assembly (7) on casing.
6, Motor Vehicle oil gas separated type vibration damper as claimed in claim 1, it is characterized in that: the spring holder assembly is threaded on the casing by inner nut (53).
7, as claim 5,6 described Motor Vehicle oil gas separated type vibration dampers, it is characterized in that: the nut of fixing spring dish on casing is that inner nut (53), outer nut (54) and nut (55) constitute.
8, Motor Vehicle oil gas separated type vibration damper as claimed in claim 1 is characterized in that: but air chamber is the plenum chamber of bearing capacity 2-3Mpa.
9, Motor Vehicle oil gas separated type vibration damper as claimed in claim 1, it is characterized in that: connecting rod hollow, there is valve (34) its end, spool (36) and seal ring (38) are arranged behind valve, valve rod (37) is arranged behind seal ring, regulator (40) is arranged behind valve rod, the through hole corresponding with the hole on the snubber arranged on the spool respective link.
10, as claim 1,10 described Motor Vehicle oil gas separated type vibration dampers, it is characterized in that: the diameter of connecting rod is less than 13mm.
11, Motor Vehicle oil gas separated type vibration damper as claimed in claim 1, it is characterized in that: lining (46) is fixed in oil sealing base (45) hole, oil sealing (48) is fixed in oil sealing base (45) hole and is close on the oil lining (46), oil sealing compresses the back riveted with trim ring (49), and oil sealing base (45) outer wall has two grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03252850 CN2685651Y (en) | 2003-09-19 | 2003-09-19 | Oil-gas separating vibrating reducer for motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03252850 CN2685651Y (en) | 2003-09-19 | 2003-09-19 | Oil-gas separating vibrating reducer for motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2685651Y true CN2685651Y (en) | 2005-03-16 |
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ID=34661078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03252850 Expired - Fee Related CN2685651Y (en) | 2003-09-19 | 2003-09-19 | Oil-gas separating vibrating reducer for motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2685651Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389938A (en) * | 2014-10-22 | 2015-03-04 | 湖北扬飞减震器有限公司 | Foamed rubber filled type/adjustable elastic car shock absorber |
| CN105805219A (en) * | 2015-11-23 | 2016-07-27 | 成都九鼎科技(集团)有限公司 | Adjustable shock absorber assembly |
| CN110985586A (en) * | 2019-11-15 | 2020-04-10 | 宣城协盈汽车零部件科技有限公司 | Low-noise automobile shock-absorbing floating piston and manufacturing method thereof |
-
2003
- 2003-09-19 CN CN 03252850 patent/CN2685651Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389938A (en) * | 2014-10-22 | 2015-03-04 | 湖北扬飞减震器有限公司 | Foamed rubber filled type/adjustable elastic car shock absorber |
| CN105805219A (en) * | 2015-11-23 | 2016-07-27 | 成都九鼎科技(集团)有限公司 | Adjustable shock absorber assembly |
| CN110985586A (en) * | 2019-11-15 | 2020-04-10 | 宣城协盈汽车零部件科技有限公司 | Low-noise automobile shock-absorbing floating piston and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050316 Termination date: 20091019 |