CN101362424A - Suspension system of lifting load-bearing impact damper - Google Patents
Suspension system of lifting load-bearing impact damper Download PDFInfo
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- CN101362424A CN101362424A CNA2008101675723A CN200810167572A CN101362424A CN 101362424 A CN101362424 A CN 101362424A CN A2008101675723 A CNA2008101675723 A CN A2008101675723A CN 200810167572 A CN200810167572 A CN 200810167572A CN 101362424 A CN101362424 A CN 101362424A
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- impact damper
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Abstract
The invention relates to a technology for lifting a suspension. The invention provides a simple and convenient method so as to improve the obstacle performance of various vehicles with arbitrary suspension form under the condition of uneven road. Compared with the general hydraulic lifting suspension system, the technology is characterized in that a high-power oil (air) pump and an actuating cylinder are not required, and the mounted type shock absorber (patent) with structure and size basically identical with the structure and size of the prior shock absorber replaces the ordinary shock absorber and the lifting cylinder. As the mounted type shock absorber only bears small part of dead load, the carrying area is very small, and the required lifting power source is also small; as for the vehicle with power steering, the suspension can be lifted by using the oil source of the power steering; and even the suspension can be lifted by using a manual (for example, treading) master cylinder. The invention has the characteristics that the invention is especially suitable for being modified on the existing vehicle with suspension structure, and has high applicability and low cost.
Description
Technical field
But the present invention relates to lifting suspension technology.It provides a kind of easy method, by the bumper lifting to improve the obstacle climbing ability of all kinds of automobiles under uneven road conditions of any suspension form.
Background technology
By the ground Clearance that the hoisting system of suspension improves vehicle, be the effective measures that improve the automobile obstacle climbing ability.Common this automotive performance is to rely on the height controller of automobile hydro pneumatic suspension or air suspension to realize.This system architecture more complicated structurally differs greatly with common common metal spring suspension system, and cost is higher, is only adopting on the senior cross-country car with on a small amount of high-grade car and the luxury bus usually.
Summary of the invention
The invention provides a kind of easy method, in order to improve the obstacle climbing ability of all kinds of automobiles under uneven road conditions of any suspension form.He is with the general main difference point of the suspension system of hydraulic lifting that leans on, it does not need high-performance oil (gas) pump and cylinder (capsule), and replaces general bumper and lifting cylinder with structure, size and existing bumper essentially identical " bearing-type bumper " (patent).Because " bearing-type bumper " only bears the fraction static load, its bearing area is very little, and required lifting propulsion source is also very little.For automobile, can utilize the oil sources of power steering to carry out suspension frame lifting with power steering; Even can carry out lifting with manpower (stepping on) master cylinder as pin.Characteristics of the present invention also are to be convenient to especially reequip on the automobile of existing suspension frame structure, and applicability is wide, and cost is low.
Description of drawings
Fig. 1 is the carrying bumper lifting suspension system with little motor-drive pump
Fig. 2 utilizes the power steering oil sources to replace the lifting suspension system of motor-drive pump
Fig. 3 utilizes the manpower master cylinder to replace the lifting suspension system of motor-drive pump
Fig. 4 concentrates the carrying bumper lifting suspension system of accumulator for band
Fig. 5 is the hoisting system sketch that four bumpers are communicated with a shared accumulator
Fig. 6 is the hoisting system sketch that two bumpers are communicated with a shared accumulator
Fig. 7 is accumulator and isolator integral structure
Fig. 8 is the doublet of energy storage type isolator and bumper
The bearing-type dual-tube shock absorber of the two stage pump oil seal structure of Fig. 9 band non-return valve
Figure 10 bearing-type dual-tube shock absorber and band check lip oil sealed two stage pump oil seal structure thereof
Figure 11 is the band check lip oil sealed two stage pump oil packing bearing-type dual-tube shock absorber that is communicated with fuel supply chamber
Figure 12 is that bearing-type monotubular bumper and ball valve pump thereof are inhaled the twin-stage hermetically-sealed construction
Figure 13 is that bearing-type monotubular bumper and check lip pump thereof are inhaled the twin-stage hermetically-sealed construction
The specific embodiment
As shown in Figure 1, but the lifting suspension system that the present invention proposes, by axle spring 1, the bearing-type bumper 2 (patent No.: 200720094724.2; 200710056382.x), accumulator 3, guiding mechanism 4, communicating pipe 5, electric oil pump 6, petrol storage tank 7, isolator 8 form, it is characterized in that: constitute high pressure fuel source by electric oil pump 6, petrol storage tank 7, isolator 8, when electric oil pump 6 no pressure, floating piston 9 in the isolator 8 is in the extreme higher position, and correspondingly suspension system is in extreme lower position; When starting electric oil pump 6, the fluid pump in the petrol storage tank 7 is to isolator 8, and it is oil-filled to the bearing-type bumper 2 of each wheel to promote floating piston 9, and suspension system has the lifting of differing heights with pump oil pressure size.When the needs bodywork height falls after rise, can make electric oil pump 6 emptyings, get back to the extreme higher position until floating piston 9.The effect of the floating piston 9 of isolator 8 is to make the fluid of electric oil pump 6 systems and the fluid of bearing-type bumper 2 can be different on the one hand, when electric oil pump 6 releases reduce bodywork height, still can keep certain excess pressure in the bearing-type bumper 2 on the other hand.But lifting suspension system shown in Figure 1 is with the power of ad hoc electric oil pump 6 as lifting.
But the present invention relates to lifting suspension technology provides a kind of easy method in order to improve the obstacle climbing ability of all kinds of automobiles under uneven road conditions of any suspension form.It is that with the main difference point of the suspension system of general hydraulic lifting it does not need high-performance oil (gas) pump and cylinder, and with structure, size and existing bumper essentially identical " bearing-type the bumper " (patent No.: 200720094724.2; 200710056382.x) general bumper of replacement and lifting cylinder.Because " bearing-type bumper " only bears the fraction static load, its bearing area is very little, and required lifting propulsion source is also very little.
For automobile, can utilize the oil sources (as Fig. 2) of power steering with power steering.The specific embodiment is that the input end of isolator 8 is linked to each other with power steering oil pump 6a by controlled triple valve 11.When power steering oil pump 6a being connect to isolator 8 pumps oil, because the promotion of floating piston 9, by carrying bumper 2, suspension begins lifting; When closing power steering oil pump 6a when connecing path to isolator 8, lifting stops and keeping existing bodywork height.When the path of isolator 8 when triple valve 11 takes back oil tank 7a, bodywork height descends.Close the way to cycle oil of isolator 8, vehicle body descends and to stop and keeping existing bodywork height.
Another kind of embodiment is with manpower (stepping on as pin) master cylinder 6b replacement electric oil pump 6 or power steering oil pump 6a (as Fig. 3), to carry out lifting by manpower; When the needs vehicle body descends, can be by opening triple valve 11, the oil return release can realize.
In the above-mentioned hoisting system,, can be that each bumper 2 is joined an accumulator 3 with the accumulator 3 that bearing-type bumper 2 matches.But also two or four bumpers 2 can be communicated with to get up a shared accumulator 3.Its concrete structure is seen Fig. 4.It can be that four bumpers 2 are communicated with to get up a shared accumulator 3 (as Fig. 5), and it is fit to some car load and arranges and cost-cutting; Also can be that two bumpers 2 are communicated with to get up a shared accumulator 3 (as Fig. 6).Independent control has the function of adjusting body roll about this system.
For compact conformation, can be with accumulator 3 and isolator 8 being combined into one structures (as shown in Figure 7), it is made up of cylinder C 1, separator piston C2, fixed cover C3, accumulator piston C4, lifting oil circuit joint C6, bumper joint C7 and Inflation plug C8 etc.; Wherein A is the lifting chamber, and B is an air storing cavity.Can also connect into doublet with the bearing-type bumper, as shown in Figure 8, it is made up of accumulator-isolator combination C0, bearing-type bumper D0, connector D1, clamping band D2, seal ring D3, briquetting D4, bolt D5 etc.
The bearing-type bumper must have very failure-free sealing.Present technique has designed special pump suction type twin-stage sealing system for this reason.Fig. 9 is the concrete structure of this system.The sealing system is made up of end cap A1, seal receptacle A2, small ball non-return valve A3, guide pin bushing A4, low pressure seal A5, high pressure sealing A6 and piston rod A8; Rely on the fluctuation of pressure of high pressure chest E and the pump-absorb action that small ball non-return valve A3 forms, make low pressure oil sealing F place keep low pressure.
Bearing-type bumper pump oil formula twin-stage sealing system also can not established small ball non-return valve A3 in addition, makes check lip A5b and utilize on low pressure seal circle A5a, makes lip in the corresponding position of oil seal seat, plays the one-way sealing effect; By passage A3b the E chamber is communicated with the G chamber, utilizes the pump-absorb action of E cavity pressure fluctuation and the one-way flow effect of check lip to make the pressure in F chamber reduce (see figure 10); Bearing-type bumper (2) also can adopt another kind of special pump to inhale the twin-stage sealing system, the sealing system does not establish small ball non-return valve (A3) in addition, on low pressure seal circle (A5a), make check lip (A5b) but utilize, make lip, play the one-way sealing effect in the corresponding position of oil seal seat; By passage (A3b) fuel supply chamber H is communicated with the outer low-pressure cavity G of lip, utilizes the pump-absorb action of H cavity pressure fluctuation, make the pressure of low-pressure cavity F in the lip reduce (seeing Figure 11).
Figure 12 is the ball valve pump suction type twin-stage hermetically-sealed construction of monotubular carrying bumper, wherein bearing-type bumper (2) combines with accumulator, can become monotubular formula carrying bumper, it is made up of end cap (A1), seal receptacle (A2), spherical non-return valve (A3), guide pin bushing (A4), low pressure seal (A5), high pressure sealing (A6), monotubular clutch release slave cylinder (A7), piston rod (A8), piston (A9), floating piston (A10), air cavity (A11), charging connector (A12), coupling link (A13) and oil circuit joint (A14); Rely on the fluctuation of pressure of epitrochoidal chamber E and the pump-absorb action that small ball non-return valve (A3) forms, make low-pressure cavity F place keep low pressure.
Figure 13 is the check lip pump suction type twin-stage hermetically-sealed construction of monotubular carrying bumper, wherein bearing-type bumper (2) combines with accumulator, become monotubular formula carrying bumper, it is made up of end cap (A1), seal receptacle (A2), guide pin bushing (A4), low pressure seal (A5a), check lip (A5b), high pressure sealing (A6), monotubular clutch release slave cylinder (A7), piston rod (A8), piston (A9), floating piston (A10), air cavity (A11), charging connector (A12), coupling link (A13) and oil circuit joint (A14); Rely on the fluctuation of pressure of high pressure chest E and the pump-absorb action that check lip (A5b) forms, make low pressure oil sealing F place keep low pressure.
The characteristics of the various structures of the present invention also are to be convenient to especially to reequip at the automobile of existing suspension frame structure, are suitable for Property is wide, and cost is low.
Claims (13)
1. suspension system of lifting load-bearing impact damper, form by axle spring (1), bearing-type bumper (2), accumulator (3), guiding mechanism (4), communicating pipe (5), electric oil pump (6), petrol storage tank (7), isolator (8), it is characterized in that: constitute high pressure fuel source by electric oil pump (6), petrol storage tank (7), isolator (8), when the no pressure of electric oil pump (6), floating piston (9) in the isolator (8) is in the extreme higher position, and correspondingly suspension system is in extreme lower position; When starting electric oil pump (6), fluid in the petrol storage tank (7) is oil-filled to the bearing-type bumper (2) of each wheel by the floating piston (9) of isolator (8), suspension system has the lifting of differing heights with pump oil pressure size, when the needs bodywork height falls after rise, can make the oil pump emptying, get back to the extreme higher position until floating piston (9); The effect of the floating piston (9) of isolator (8) is that the fluid of the fluid of electric oil pump (6) and bearing-type bumper (2) is isolated on the one hand, when electric oil pump (6) release reduced bodywork height, the bearing-type bumper still can keep certain excess pressure in (2) on the other hand.
2. suspension system of lifting load-bearing impact damper according to claim 1, it is characterized in that: do not adopt special-purpose electric oil pump (6) to produce oil pressure, but utilize existing power steering oil sources on the automobile, by power steering oil pump (6a) the power steering oil pressure is promoted floating piston (9) by controlled triple valve (11), to each bearing-type bumper (2) fuel feeding, reach the purpose of suspension frame lifting.
3. suspension system of lifting load-bearing impact damper according to claim 1, it is characterized in that: do not adopt special-purpose electric oil pump (6) or power steering oil sources to produce oil pressure, but utilize manpower master cylinder (6b) to produce the floating piston (9) that oil pressure promotes isolator, to each bearing-type bumper (2) fuel feeding, reach the purpose of suspension frame lifting.
4. according to claim 1,2 or 3 described suspension system of lifting load-bearing impact damper, it is characterized in that:, be that each bumper (2) is joined an accumulator (3) with the accumulator (3) that bearing-type bumper (2) matches.
5. according to claim 1,2 or 3 described suspension system of lifting load-bearing impact damper, wherein the accumulator (3) that matches with bearing-type bumper (2) is that two bumpers (6) of homonymy are communicated with to get up a shared accumulator (3).
6. according to claim 1,2 or 3 described suspension system of lifting load-bearing impact damper, it is characterized in that:, be that four bumpers (6) are communicated with to get up a shared accumulator (3) with the accumulator (3) that bearing-type bumper (2) matches.
7. according to claim 1,2 or 3 described suspension system of lifting load-bearing impact damper, it is characterized in that: accumulator (3) and isolator (8) being combined into one structure.
8. suspension system of lifting load-bearing impact damper according to claim 7 is characterized in that: the accumulator-isolator combination (C0) and the bearing-type bumper (2) of integral structure are connected into doublet.
9. according to claim 1,2 or 3 described suspension system of lifting load-bearing impact damper, it is characterized in that: bearing-type bumper (2) adopts special pump to inhale the twin-stage sealing system, and the sealing system is made up of end cap (A1), seal receptacle (A2), small ball non-return valve (A3), guide pin bushing (A4), low pressure seal (A5), high pressure sealing (A6) and piston rod (A8); The sealing system relies on the fluctuation of pressure of high pressure chest E and the pump-absorb action that small ball non-return valve (A3) forms, and makes low pressure oil sealing F place keep low pressure.
10. suspension system of lifting load-bearing impact damper according to claim 9, it is characterized in that: bearing-type bumper (2) adopts another kind of special pump to inhale the twin-stage sealing system, the sealing system does not establish small ball non-return valve (A3) in addition, on low pressure seal circle (A5a), make check lip (A5b) but utilize, lip is made in corresponding position at oil seal seat, plays the one-way sealing effect; To go up epitrochoidal chamber E by passage (A3b) and be communicated with, utilize the pump-absorb action of E cavity pressure fluctuation, the pressure of low-pressure cavity F in the lip is reduced with the outer low-pressure cavity G of lip.
11. suspension system of lifting load-bearing impact damper according to claim 9, it is characterized in that: bearing-type bumper (2) adopts another kind of special pump to inhale the twin-stage sealing system, the sealing system does not establish small ball non-return valve (A3) in addition, on low pressure seal circle (A5a), make check lip (A5b) but utilize, lip is made in corresponding position at oil seal seat, plays the one-way sealing effect; By passage (A3b) fuel supply chamber H is communicated with the outer low-pressure cavity G of lip, utilizes the pump-absorb action of H cavity pressure fluctuation, the pressure of low-pressure cavity F in the lip is reduced.
12. according to claim 1,2,3 or 9 described suspension system of lifting load-bearing impact damper, it is characterized in that: bearing-type bumper (2) combines with accumulator, become monotubular formula carrying bumper, it comprises end cap (A1), seal receptacle (A2), spherical non-return valve (A3), guide pin bushing (A4), low pressure seal (A5), high pressure sealing (A6) and piston rod (A8); Rely on the fluctuation of pressure of epitrochoidal chamber E and the pump-absorb action that small ball non-return valve (A3) forms, make low-pressure cavity F place keep low pressure.
13. according to claim 1,2,3 or 9 described suspension system of lifting load-bearing impact damper, it is characterized in that: bearing-type bumper (2) combines with accumulator, become monotubular formula carrying bumper, it comprises end cap (A1), seal receptacle (A2), guide pin bushing (A4), low pressure seal (A5a), check lip (A5b), high pressure sealing (A6) and piston rod (A8); Rely on the fluctuation of pressure of high pressure chest E and the pump-absorb action that check lip (A5b) forms, make low pressure oil sealing F place keep low pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101675723A CN101362424A (en) | 2008-10-13 | 2008-10-13 | Suspension system of lifting load-bearing impact damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101675723A CN101362424A (en) | 2008-10-13 | 2008-10-13 | Suspension system of lifting load-bearing impact damper |
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| Publication Number | Publication Date |
|---|---|
| CN101362424A true CN101362424A (en) | 2009-02-11 |
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|---|---|---|---|
| CNA2008101675723A Pending CN101362424A (en) | 2008-10-13 | 2008-10-13 | Suspension system of lifting load-bearing impact damper |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109624639A (en) * | 2018-10-31 | 2019-04-16 | 华中科技大学 | A kind of vehicle suspension system hydraulicefficiency elevation structure of Z-shaped multi link stroke amplification |
-
2008
- 2008-10-13 CN CNA2008101675723A patent/CN101362424A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109624639A (en) * | 2018-10-31 | 2019-04-16 | 华中科技大学 | A kind of vehicle suspension system hydraulicefficiency elevation structure of Z-shaped multi link stroke amplification |
| CN109624639B (en) * | 2018-10-31 | 2020-08-04 | 华中科技大学 | Z-shaped multi-connecting-rod stroke amplified hydraulic lifting mechanism for vehicle suspension system |
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Application publication date: 20090211 |