CN203585188U - Hydro-pneumatic spring suspension oil cylinder - Google Patents
Hydro-pneumatic spring suspension oil cylinder Download PDFInfo
- Publication number
- CN203585188U CN203585188U CN201320674215.2U CN201320674215U CN203585188U CN 203585188 U CN203585188 U CN 203585188U CN 201320674215 U CN201320674215 U CN 201320674215U CN 203585188 U CN203585188 U CN 203585188U
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- China
- Prior art keywords
- hydro
- pneumatic spring
- oil cylinder
- cylinder
- piston rod
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- Expired - Fee Related
Links
- 239000000725 suspension Substances 0.000 title abstract description 5
- 238000013016 damping Methods 0.000 claims abstract description 23
- 239000004519 grease Substances 0.000 claims description 46
- 238000000034 method Methods 0.000 abstract description 10
- 239000003921 oil Substances 0.000 description 20
- 239000012530 fluid Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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- Fluid-Damping Devices (AREA)
Abstract
The utility model relates to a hydro-pneumatic spring suspension oil cylinder. The hydro-pneumatic spring suspension oil cylinder mainly comprises an upper connector 1, a damping hole 2, a main piston 3, a cylinder barrel 4, a piston rod 6, a guide sleeve 7, a big nut 8, a lower connector 9, a lower base 10, a gas cylinder 12, a floating piston 13, a seal ring 15, an upper base 16 and a check valve 17, wherein the piston rod 6 is of a hollow structure, and the guide sleeve 7 is arranged at the outer part of the hollow piston rod; the four spaces of a main oil chamber 18, an auxiliary oil chamber 11, a piston rod cavity oil chamber 5 and a gas chamber 14 are formed in the oil cylinder. The hydro-pneumatic spring suspension oil cylinder has the advantages that as the upper connector is connected with a vehicle frame, and the lower connector is connected with an axle, so that a large-range lifting function can be realized on an engineering vehicle, and the requirement of the engineering vehicle on vibration damping under severe road conditions in the driving process is met; not only are the working condition adaptability and the driving smoothness of the vehicle improved, but also the comport of a driver is improved.
Description
Technical field
The utility model relates to a kind of hydro-pneumatic spring hanging oil cylinder, a kind of engineering vehicle hydro-pneumatic spring hanging oil cylinder specifically, can realize engineering vehicle on a large scale in lifting function and running process to vibration damping requirement under severe road conditions.
Background technique
Though existing engineering vehicle is with hydro-pneumatic spring, some plays certain damping effect, cannot take into account unloaded and fully loaded two kinds of different applying working conditions.The required accumulator size of some hydro-pneumatic springs is larger, need to be designed to external, and this usually can bring difficult arrangement on vehicle, causes the complicated and manufacture cost of structure the problem such as to increase.Therefore existing hydro-pneumatic spring can't meet the vehicle requirement of lifting function and severe road vibration damping on a large scale, driver control stability and driving comfort neither be very good.
Summary of the invention
The purpose of this utility model is to overcome above deficiency, provide a kind of have compact structure simple, be easy to manufacture and maintenance, safe and reliable hydro-pneumatic spring hanging oil cylinder.
The utility model can adopt following technique measures to realize:
Hydro-pneumatic spring hanging oil cylinder of the present utility model is mainly comprised of upper connected body, damping hole, main piston, cylinder barrel, piston rod, guide sleeve, big nut, second line of a couplet junctor, lower, cylinder, floating piston, seal ring, the seat of honour and one-way valve, wherein piston rod is hollow structure, and hollow piston rod outer installment has guide sleeve.In inner main grease chamber, secondary grease chamber, rod end chamber grease chamber and four spaces of air chamber of forming of oil cylinder.
Main grease chamber is the space being surrounded by main piston, cylinder barrel and upper connected body, is provided with damping hole and one-way valve on main piston, and Yu Fu grease chamber, Shi Zhu grease chamber communicates, and main grease chamber is also connected with external hydraulic system by the hydraulic fluid port I on upper connected body.
Rod end chamber grease chamber is the space being surrounded by main piston, cylinder barrel, piston rod and guide sleeve, is provided with the hydraulic fluid port II being connected with external hydraulic system on cylinder barrel.
Air chamber He Fu grease chamber is isolated in cylinder by floating piston, and air chamber is the space being surrounded by the seat of honour, cylinder and floating piston, belongs to the part in cylinder; Secondary grease chamber comprises two-part, and a part is the space being surrounded by floating piston and cylinder, and another part is the space being surrounded by main piston, piston rod and cylinder, and secondary grease chamber is communicated with by damping hole and one-way valve Yu Zhu grease chamber.
The beneficial effects of the utility model are as follows:
The utlity model has compact structure simple, be easy to manufacture and maintenance, safe and reliable feature, can realize engineering vehicle on a large scale in lifting function and running process to vibration damping requirement under severe road conditions, not only improve adaptability for working condition and the run smoothness of vehicle, and improved driver and passenger's travelling comfort.
Accompanying drawing explanation
Fig. 1 is the utility model hydro-pneumatic spring hanging oil cylinder structural representation.
Sequence number in figure: 1, upper connected body 2, damping hole 3, main piston 4, cylinder barrel 5, rod end chamber grease chamber 6, piston rod 7, guide sleeve 8, big nut 9, second line of a couplet junctor 10, lower 11, secondary grease chamber 12, cylinder 13, floating piston 14, air chamber 15, seal ring 16, the seat of honour 17, one-way valve 18, the main A of grease chamber, hydraulic fluid port I B, hydraulic fluid port II
Embodiment
The utility model is described in further detail below with reference to embodiment's (accompanying drawing):
As shown in Figure 1, hydro-pneumatic spring hanging oil cylinder of the present utility model is mainly comprised of upper connected body 1, damping hole 2, main piston 3, cylinder barrel 4, piston rod 6, guide sleeve 7, big nut 8, second line of a couplet junctor 9, lower 10, cylinder 12, floating piston 13, seal ring 15, the seat of honour 16 and one-way valve 17, wherein piston rod 6 is hollow structure, and hollow piston rod outer installment has guide sleeve 7.In inner main grease chamber 18, secondary grease chamber 11, rod end chamber grease chamber 5 and 14 4 spaces of air chamber of forming of oil cylinder.
Rod end chamber grease chamber 5 is the spaces that surrounded by main piston 3, cylinder barrel 4, piston rod 6 and guide sleeve 7, is provided with the hydraulic fluid port II being connected with external hydraulic system on cylinder barrel 4.
Air chamber 14He Fu grease chamber 11 is isolated in cylinder 12 by floating piston 13, and air chamber 14 is the spaces that surrounded by the seat of honour 16, cylinder 12 and floating piston 13, belongs to the part in cylinder 12; Secondary grease chamber 11 comprises two-part, and a part is the space being surrounded by floating piston 13 and cylinder 12, and another part is the space being surrounded by main piston 3, piston rod 6 and cylinder 12, and secondary grease chamber 11 is communicated with by damping hole 2 and one-way valve 17Yu Zhu grease chamber 18.
The utility model can be realized axle of engineering vehicle and automatically mention, falls function, and vibration damping requirement in the process of moving.
Its detailed operation process is as follows:
After completing assembling, first the air chamber of the utility model hydro-pneumatic spring hanging oil cylinder is full of as requested to the nitrogen of certain pressure, then, by external hydraulic system Dui Zhu grease chamber, secondary grease chamber and rod end chamber grease chamber injection liquid force feed, form hydro-pneumatic spring.
When running into certain suspension in the process of moving, vehicle breaks down, or when vehicle bridge need to be mentioned, hydro-pneumatic spring hanging oil cylinder will shorten, externally, under the effect of hydraulic system, hydraulic fluid port II, as filler opening, enters high pressure oil, hydraulic fluid port I is as return opening, thereby promote main piston, move upward together with piston rod, and then the vehicle bridge being connected with second line of a couplet junctor is also up mentioned, so just played the function that vehicle hanging is mentioned automatically.
Identical principle, when needs fall vehicle bridge, hydro-pneumatic spring hanging oil cylinder will be extended, externally, under the effect of hydraulic system, hydraulic fluid port I, as filler opening, enters high pressure oil, hydraulic fluid port II is as return opening, thereby promote main piston, move downward together with piston rod, and then the vehicle bridge being connected with second line of a couplet junctor is also fallen gradually, so just played the function that vehicle hanging falls automatically.
When vehicle travels on uneven road surface, the to-and-fro motion between vehicle frame and vehicle bridge of hydro-pneumatic spring hanging oil cylinder.When the local active force in the face of vehicle bridge increases, main grease chamber increased pressure, force main grease chamber hydraulic oil to flow into secondary grease chamber (one-way valve is in open mode) through damping hole and one-way valve, main piston moves upward, and meanwhile, secondary grease chamber pressure follow increases, thereby promoting floating piston moves up, gas chamber volume reduces, increased pressure, and hydro-pneumatic spring hanging oil cylinder shortens.When Dang Zhu grease chamber pressure equates with air chamber pressure, the just stop motion of main piston, floating piston, hydro-pneumatic spring hanging oil cylinder also will keep certain length no longer to change.In this process, due to damping hole and one-way valve (one-way valve opens) He Fu grease chamber, Shi Zhu grease chamber connection simultaneously, the damping force that hydro-pneumatic spring hanging oil cylinder produces is smaller, and the elastic reaction that can give full play to like this gas indoor gas is to adapt to bump and to suppress the vehicle frame amplitude that moves up and down.
When the local active force in the face of vehicle bridge reduces, main grease chamber pressure decreased, under air chamber pressure effect, floating piston moves down, and forces secondary grease chamber hydraulic oil to flow into main grease chamber through damping hole, and closing one-way valve, main piston moves downward, and hydro-pneumatic spring hanging oil cylinder is extended.When Dang Zhu grease chamber pressure equates with air chamber pressure, the just stop motion of main piston, floating piston, hydro-pneumatic spring hanging oil cylinder length no longer changes, and vehicle frame also will keep relative constant with the position of vehicle bridge.In this process, because unsprung weight is less, only have damping hole to be communicated with main grease chamber He Fu grease chamber (closed check valve) and can produce larger damping force and avoid too fast the impacting of hydro-pneumatic spring motion, the damping function that can give full play to like this hydro-pneumatic spring is to adapt to road surface and cave in and to suppress the vehicle frame amplitude that moves up and down.
Claims (2)
1. a hydro-pneumatic spring hanging oil cylinder, is characterized in that: hydro-pneumatic spring hanging oil cylinder mainly comprises connected body (1), damping hole (2), main piston (3), cylinder barrel (4), piston rod (6), guide sleeve (7), big nut (8), second line of a couplet junctor (9), lower (10), cylinder (12), floating piston (13), seal ring (15), the seat of honour (16) and one-way valve (17).Described hydro-pneumatic spring hanging oil cylinder is comprised of three-decker from outside to inside: be respectively cylinder barrel (4), piston rod (6) and cylinder (12), wherein piston rod (6) is hollow structure, and cylinder (12) is arranged in the piston rod (6) of hollow.
2. according to the hydro-pneumatic spring hanging oil cylinder described in right 1, it is characterized in that: in described hydro-pneumatic spring hanging oil cylinder, cylinder (12) is divided into air chamber (14) He Fu grease chamber (11) two-part by a floating piston (13).
3. according to the hydro-pneumatic spring hanging oil cylinder described in right 1, it is characterized in that: described hydro-pneumatic spring hanging oil cylinder Zhong Zhu grease chamber (18) He Fu grease chamber (11) is connected by damping hole (2) and one-way valve (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320674215.2U CN203585188U (en) | 2013-10-30 | 2013-10-30 | Hydro-pneumatic spring suspension oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320674215.2U CN203585188U (en) | 2013-10-30 | 2013-10-30 | Hydro-pneumatic spring suspension oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203585188U true CN203585188U (en) | 2014-05-07 |
Family
ID=50583118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320674215.2U Expired - Fee Related CN203585188U (en) | 2013-10-30 | 2013-10-30 | Hydro-pneumatic spring suspension oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203585188U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613126A (en) * | 2015-02-10 | 2015-05-13 | 苏州陈恒织造有限公司 | Hydraulic and pneumatic type loom let-off mechanism buffer and application thereof |
-
2013
- 2013-10-30 CN CN201320674215.2U patent/CN203585188U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613126A (en) * | 2015-02-10 | 2015-05-13 | 苏州陈恒织造有限公司 | Hydraulic and pneumatic type loom let-off mechanism buffer and application thereof |
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| RINS | Preservation of patent right or utility model and its discharge | ||
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| RINS | Preservation of patent right or utility model and its discharge | ||
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| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent | ||
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| PP01 | Preservation of patent right | ||
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| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20231030 Granted publication date: 20140507 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 |
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| CF01 | Termination of patent right due to non-payment of annual fee |