CN208669918U - The double gas chamber plunger type accumulators of hydro pneumatic suspension - Google Patents
The double gas chamber plunger type accumulators of hydro pneumatic suspension Download PDFInfo
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- CN208669918U CN208669918U CN201821370749.5U CN201821370749U CN208669918U CN 208669918 U CN208669918 U CN 208669918U CN 201821370749 U CN201821370749 U CN 201821370749U CN 208669918 U CN208669918 U CN 208669918U
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Abstract
The utility model proposes a kind of double gas chamber plunger type accumulators of hydro pneumatic suspension, belong to hydro pneumatic suspension technical field.This hydro pneumatic suspension includes upper cylinder body and lower cylinder body with double gas chamber plunger type accumulators, the lower end of upper cylinder body is tightly connected with the upper end of lower cylinder body is connected to upper cylinder body and lower cylinder body, plunger bushing is provided in upper cylinder body or lower cylinder body, movable post is slidably connected in plunger bushing, the upper end of movable post is located in upper cylinder body, the lower end of movable post is provided with piston, piston is located in lower cylinder body and piston can make straight reciprocating motion along the axis of lower cylinder body, oil nozzle is connected in upper cylinder body or lower cylinder body between plunger bushing and piston, upper cylinder body is connected with upper air injection opening through air flue, lower cylinder body is connected with lower air injection opening through air flue.The utility model has the beneficial effects that 2 air chambers simultaneously act on plunger (movable post and piston), it is ensured that the buffer shock-absorbing that hydro pneumatic suspension provides meets vehicle in unloaded, fully loaded requirement simultaneously.
Description
Technical field
The utility model relates to hydro pneumatic suspension technical fields, store more particularly to a kind of double gas chamber plunger types of hydro pneumatic suspension
It can device.
Background technique
Hydro pneumatic suspension can change rigidity, can carry out preferable buffer shock-absorbing to vehicle, be widely used to heavy type
Truck, engineering truck.Current hydro pneumatic suspension is generally made of oil cylinder and single gas chamber accumulator, and principle is stored by single gas chamber
Can the atmospheric pressure of device air cavity adjust rigidity.Current single gas chamber accumulator cannot be guaranteed the buffer shock-absorbing that oil cylinder provides while expire
Sufficient vehicle is in unloaded, fully loaded requirement.Specifically, the atmospheric pressure when adjustment list gas chamber accumulator air cavity meets vehicle deadhead operation
When, then the piston rod of oil cylinder is located at the upper end of oil cylinder under vehicle full load condition, and the cushion stroke very little of piston rod makes oil cylinder
Buffer shock-absorbing effect is poor；It is fully loaded with when driving when the atmospheric pressure of adjustment list gas chamber accumulator air cavity meets vehicle, then in vehicle sky
The piston rod of oil cylinder is located at the lower end of oil cylinder under load state, and the cushion stroke of piston rod also very little makees the buffer shock-absorbing of oil cylinder
With poor；When the atmospheric pressure of adjustment accumulator air cavity is median, then the cushion stroke of piston rod is bigger than normal in oil cylinder, but makes vehicle
Chassis height change greatly, do not meet Car design requirement.
Utility model content
The purpose of this utility model is to provide a kind of double gas chamber plunger type accumulators of hydro pneumatic suspension, solve current storage
Can device cannot be guaranteed that buffer shock-absorbing that hydro pneumatic suspension provides meets vehicle the requirement that is unloaded, being fully loaded with the technical issues of simultaneously.
The utility model provides a kind of hydro pneumatic suspension double gas chamber plunger type accumulators, the double gas chamber plunger types of hydro pneumatic suspension
Accumulator includes upper cylinder body and lower cylinder body, and the lower end of upper cylinder body and the upper end of lower cylinder body, which are tightly connected, connects upper cylinder body and lower cylinder body
It is logical, it is provided with plunger bushing in upper cylinder body or lower cylinder body, movable post is slidably connected in plunger bushing, the upper end of movable post is located at upper cylinder body
Interior, the lower end of movable post is provided with piston, and piston is located in lower cylinder body and piston can make straight reciprocating motion along the axis of lower cylinder body,
It is connected with oil nozzle in upper cylinder body or lower cylinder body between plunger bushing and piston, upper cylinder body is connected with upper air injection opening, lower cylinder through air flue
Body is connected with lower air injection opening through air flue.
Further, the lower end outer wall of upper cylinder body is provided with external screw thread, and the upper end inner wall of lower cylinder body is provided with internal screw thread, on
The upper end of the lower thread connection lower cylinder body of cylinder body.
Further, the outer wall of the plunger bushing is provided with external screw thread, and the lower end inner wall of upper cylinder body is provided with internal screw thread, column
The lower end of plug sleeve threaded connection upper cylinder body.
Further, the lower end of plunger bushing is aligned with the lower end of upper cylinder body.
Further, lower cylinder body connects oil nozzle.
Further, upper air injection opening is arranged in the upper end of upper cylinder body, and lower air injection opening is arranged in the lower end of lower cylinder body.
Further, epithelium healing is set inside the upper end of upper cylinder body, one end of epithelium healing connects upper cylinder body, epithelium healing it is another
One end connects upper air injection opening；Lower cylinder body includes lower cylinder sleeve, and the lower end of lower cylinder sleeve is sealedly connected with lower cover, setting inside lower cover
Downtake, one end of downtake connect lower cylinder body, and the other end of downtake connects lower air injection opening.
Further, the lower end inner wall of lower cylinder sleeve is provided with internal screw thread, and the outer wall of lower cover is provided with external screw thread, lower cover
It is threadedly coupled the lower end of lower cylinder sleeve.
Further, sealing ring is provided between the lower end inner wall of lower cylinder sleeve and the outer wall of lower cover.
Further, sealing ring is provided between plunger bushing and movable post.
Compared with prior art, the hydro pneumatic suspension of the utility model had the characteristics that with double gas chamber plunger type accumulators and
Advantage:
The double gas chamber plunger type accumulators of the hydro pneumatic suspension of the utility model, compact-sized, occupied space is smaller, convenient for dress
Assigned on vehicle；It is double gas chamber designs, and 2 air chambers simultaneously act on plunger (movable post and piston), and hydro pneumatic suspension is in vehicle sky
It carries or full load condition keeps the change in location of piston rod in oil cylinder little, piston rod is larger in in-oil cylinder cushion stroke, can be with
Guarantee that the buffer shock-absorbing that hydro pneumatic suspension provides meets vehicle in unloaded, fully loaded requirement simultaneously；It can be to the oil gas hanging of existing vehicle
Hang transformation, it is only necessary to double gas chamber piston accumulators of the utility model be replaced into single gas chamber accumulator on existing vehicle, changed
It makes that cost is relatively low, is promoted the use of convenient for a wide range of.
After specific embodiment of the present utility model is read in conjunction with the figure, it will become more the characteristics of the utility model with advantage
Add clear.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is this
Some embodiments of utility model, for those of ordinary skill in the art, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is the structural schematic diagram of the double gas chamber plunger type accumulators of hydro pneumatic suspension and oil cylinder in original state；
Fig. 2 is the structural schematic diagram of the double gas chamber plunger type accumulators of hydro pneumatic suspension and oil cylinder in vehicle light condition；
Fig. 3 is the structural schematic diagram of the double gas chamber plunger type accumulators of hydro pneumatic suspension and oil cylinder in vehicle full load condition；
Wherein, 1, upper cylinder body, 11, upper air injection opening, 2, lower cylinder body, 21, lower air injection opening, 22, lower cylinder sleeve, 23, lower cover,
31, plunger bushing, 32, movable post, 33, piston, 4, pipeline road, 5, oil cylinder, 51, grease chamber, 52, piston rod, 6, oil nozzle, 71, upper gas
Road, 72, downtake, 8, sealing ring, 91, upper chamber, 92, lower chamber.
Specific embodiment
As shown in Figure 1 to Figure 3, the present embodiment provides a kind of hydro pneumatic suspension double gas chamber plunger type accumulators, double gas chambers
Piston type accumulation of energy connects the grease chamber 51 of oil cylinder 5 through pipeline road 4, to collectively constitute the major part of hydro pneumatic suspension.
Hydro pneumatic suspension includes upper cylinder body 1 and lower cylinder body 2 with double gas chamber plunger type accumulators.The lower end outer wall of upper cylinder body 1 is set
It is equipped with external screw thread, the upper end inner wall of lower cylinder body 2 is provided with internal screw thread, and the lower thread of upper cylinder body 1 connects the upper end of lower cylinder body 2,
The lower end of upper cylinder body 1 and the upper end of lower cylinder body 2 are tightly connected, and upper cylinder body 1 and lower cylinder body 2 is made to be communicated as one.
The outer wall of plunger bushing 31 is provided with external screw thread, and the lower end inner wall of upper cylinder body 1 is provided with internal screw thread, 31 screw thread of plunger bushing
Connect the lower end of upper cylinder body 1.Upper chamber 91 is formed in the top of plunger bushing 31 in upper cylinder body 1.In plunger bushing 31 in lower cylinder body 2
Lower section forms lower chamber 92.The lower end of plunger bushing 31 is aligned with the lower end of upper cylinder body 1, run piston 33 can to plunger bushing 31
Lower surface, to increase the stroke of piston 33 in limited structure space.Plunger includes movable post 32 and piston 33, under movable post 32
End assembly piston 33.The movable post that is slidably connected in plunger bushing 31 32 is provided with sealing ring 8 between plunger bushing 31 and movable post 32.Movable post
32 upper end is located in upper cylinder body 1, and piston 33 is located in lower cylinder body 2.Piston 33 can make linear reciprocation fortune along the axis of lower cylinder body 2
It is dynamic.
Oil nozzle 6 is connected between plunger bushing 31 and piston 33 and in lower cylinder body.Oil nozzle 6 connects oil cylinder 5 through pipeline road 4
Grease chamber 51.
Upper air injection opening 11 is arranged in the upper end of upper cylinder body 1, and epithelium healing 71 is arranged inside the upper end of upper cylinder body 1, epithelium healing 71
One end connects upper cylinder body 1, and the other end of epithelium healing 71 connects upper air injection opening 11.
Lower air injection opening 21 is arranged in the lower end of lower cylinder body 2, and lower air injection opening 21 connects lower cylinder body 2 through downtake 72.Under specifically,
Cylinder body 2 includes lower cylinder sleeve 22 and lower cover 23, and the lower end inner wall of lower cylinder sleeve 22 is provided with internal screw thread, the outer wall setting of lower cover 23
Have an external screw thread, lower cover 23 is threadedly coupled the lower end of lower cylinder sleeve 22, the outer wall of the lower end inner wall of lower cylinder sleeve 22 and lower cover 23 it
Between be provided with sealing ring 8 so that lower cylinder sleeve 22 lower end be tightly connected lower cover 23.Downtake 72 is set inside lower cover 23,
One end of downtake 72 connects lower cylinder body 2, and the other end of downtake 72 connects lower air injection opening 21.
As shown in Figure 1, hydro pneumatic suspension is in original state (oil-filled, inflated condition), the grease chamber 51 of oil cylinder 5 injects hydraulic
The oil nozzle 6 of double gas chamber piston accumulators is connected the grease chamber 51 of oil cylinder 5 by oil through pipeline road 4.Upwards by upper air injection opening 11
Injection nitrogen and the upper air injection opening 11 of closing, inject nitrogen to lower cylinder body 2 by lower air injection opening 21 and close lower air injection opening in cylinder body 1
21。
As shown in Fig. 2, hydro pneumatic suspension is in vehicle light condition, the stress in reciprocating motion of piston rod 52 is smaller at this time,
The hydraulic oil of grease chamber 51 enters the space between plunger bushing 31 and piston 33 through oil nozzle 6.Hydraulic oil pushes piston 33 to compress lower gas
Room 92, lower chamber 92 generate damping thrust to piston 33.Movable post 32 is larger in the volume of upper chamber 91, the nitrogen in upper chamber 91
Larger to the active force of movable post 32, at this point, piston rod 52 is located at the centre position slightly on the lower side of oil cylinder 5, piston rod 52 is in oil cylinder 5
Cushion stroke it is larger, meet vehicle in unloaded buffer shock-absorbing requirement.
As shown in figure 3, hydro pneumatic suspension is in vehicle full load condition, the stress in reciprocating motion of piston rod 52 is larger at this time,
The hydraulic oil of grease chamber 51 enters the space between plunger bushing 31 and piston 33 through oil nozzle 6.Hydraulic oil pushes piston 33 to compress lower gas
Room 92, lower chamber 92 generate damping thrust to piston 33.Movable post 32 becomes smaller in the volume of upper chamber 91, the nitrogen in upper chamber 91
Smaller to the active force of movable post 32, at this point, piston rod 52 is located at the slightly elevated position in centre of oil cylinder 5, piston rod 52 is in oil cylinder 5
Cushion stroke it is larger, meet vehicle in fully loaded buffer shock-absorbing requirement.
The double gas chamber plunger type accumulators of the hydro pneumatic suspension of the present embodiment, compact-sized, occupied space is smaller, convenient for assembly
In on vehicle.It is double gas chamber (upper chamber 91, lower chamber 92) designs, and 2 air chambers simultaneously make plunger (movable post 32 and piston 33)
With hydro pneumatic suspension, which is in vehicle zero load or full load condition, keeps the change in location of piston rod 52 in oil cylinder 5 little, and piston rod 52 is in oil
Cushion stroke in cylinder 5 is larger, it is ensured that the buffer shock-absorbing that hydro pneumatic suspension provides meets vehicle unloaded, fully loaded simultaneously
It is required that.The oleo-pneumatic suspension of existing vehicle can be transformed, it is only necessary to which double gas chamber piston accumulators of embodiment are replaced into existing vehicle
Single gas chamber accumulator on, improvement cost is lower, promotes the use of convenient for a wide range of.
Certainly, the above description is not intended to limit the present invention, and the utility model is also not limited to the example above,
The variations, modifications, additions or substitutions that those skilled in the art are made in the essential scope of the utility model, are also answered
Belong to the protection scope of the utility model.
Claims (9)
1. a kind of double gas chamber plunger type accumulators of hydro pneumatic suspension, it is characterised in that: the double gas chamber plunger type accumulation of energys of hydro pneumatic suspension
Device includes upper cylinder body and lower cylinder body, and the lower end of upper cylinder body is tightly connected with the upper end of lower cylinder body is connected to upper cylinder body and lower cylinder body,
It is provided with plunger bushing in upper cylinder body or lower cylinder body, movable post is slidably connected in plunger bushing, the upper end of movable post is located in upper cylinder body, living
The lower end of column is provided with piston, and piston is located in lower cylinder body and piston can make straight reciprocating motion along the axis of lower cylinder body, in column
It is connected with oil nozzle in upper cylinder body or lower cylinder body between plug sleeve and piston, upper cylinder body is connected with upper air injection opening, lower cylinder body warp through air flue
Air flue is connected with lower air injection opening.
2. the double gas chamber plunger type accumulators of hydro pneumatic suspension according to claim 1, it is characterised in that: the lower end of upper cylinder body
Outer wall is provided with external screw thread, and the upper end inner wall of lower cylinder body is provided with internal screw thread, and the lower thread of upper cylinder body connects the upper of lower cylinder body
End.
3. the double gas chamber plunger type accumulators of hydro pneumatic suspension according to claim 2, it is characterised in that: the plunger bushing
Outer wall is provided with external screw thread, and the lower end inner wall of upper cylinder body is provided with internal screw thread, and plunger bushing is threadedly coupled the lower end of upper cylinder body.
4. the double gas chamber plunger type accumulators of hydro pneumatic suspension according to claim 3, it is characterised in that: the lower end of plunger bushing
It is aligned with the lower end of upper cylinder body.
5. the double gas chamber plunger type accumulators of hydro pneumatic suspension according to claim 1, it is characterised in that: lower cylinder body connection oil
Mouth.
6. the double gas chamber plunger type accumulators of hydro pneumatic suspension according to claim 1, it is characterised in that: the upper end of upper cylinder body
Lower air injection opening is arranged in air injection opening in setting, the lower end of lower cylinder body.
7. the double gas chamber plunger type accumulators of hydro pneumatic suspension according to claim 6, it is characterised in that: the upper end of upper cylinder body
Inside setting epithelium healing, one end of epithelium healing connect upper cylinder body, and the other end of epithelium healing connects upper air injection opening；Under lower cylinder body includes
Cylinder sleeve, the lower end of lower cylinder sleeve are sealedly connected with lower cover, and downtake is arranged inside lower cover, and one end of downtake connects lower cylinder
Body, the other end of downtake connect lower air injection opening.
8. the double gas chamber plunger type accumulators of hydro pneumatic suspension according to claim 7, it is characterised in that: the lower end of lower cylinder sleeve
Inner wall is provided with internal screw thread, and the outer wall of lower cover is provided with external screw thread, and lower cover is threadedly coupled the lower end of lower cylinder sleeve.
9. the double gas chamber plunger type accumulators of hydro pneumatic suspension according to claim 8, it is characterised in that: the lower end of lower cylinder sleeve
Sealing ring is provided between inner wall and the outer wall of lower cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821370749.5U CN208669918U (en) | 2018-08-24 | 2018-08-24 | The double gas chamber plunger type accumulators of hydro pneumatic suspension |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821370749.5U CN208669918U (en) | 2018-08-24 | 2018-08-24 | The double gas chamber plunger type accumulators of hydro pneumatic suspension |
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| CN208669918U true CN208669918U (en) | 2019-03-29 |
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| CN201821370749.5U Active CN208669918U (en) | 2018-08-24 | 2018-08-24 | The double gas chamber plunger type accumulators of hydro pneumatic suspension |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825699A (en) * | 2018-08-24 | 2018-11-16 | 山东万通液压股份有限公司 | The double gas chamber plunger type accumulators of hydro pneumatic suspension |
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2018
- 2018-08-24 CN CN201821370749.5U patent/CN208669918U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825699A (en) * | 2018-08-24 | 2018-11-16 | 山东万通液压股份有限公司 | The double gas chamber plunger type accumulators of hydro pneumatic suspension |
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