CN208281419U - Electro-rheological fluid damper piston structure and electro-rheological fluid damper - Google Patents
Electro-rheological fluid damper piston structure and electro-rheological fluid damper Download PDFInfo
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- CN208281419U CN208281419U CN201820828730.4U CN201820828730U CN208281419U CN 208281419 U CN208281419 U CN 208281419U CN 201820828730 U CN201820828730 U CN 201820828730U CN 208281419 U CN208281419 U CN 208281419U
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- rheological fluid
- fluid damper
- damper
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Abstract
The utility model provides a kind of electro-rheological fluid damper piston structure and electro-rheological fluid damper, the electro-rheological fluid damper piston structure of the utility model, including can socket joint it is fixed on the piston rod, and what opposite can be slided is set to the intracorporal piston shell of damper cylinder, insulation is set in piston shell, and the electrode that can be electrically connected with the external world, and it is configured at piston shell, both ends are respectively communicated in the damp channel outside piston shell both ends, and damp channel has the first passage being interposed between electrode and damper cylinder body, and the second channel being interposed between electrode and piston shell concatenated with first passage.The electro-rheological fluid damper piston structure of the utility model, since damp channel is located between electrode and damper cylinder body and between electrode and piston shell, in damper high speed and low-speed motion, its damping force will not generate biggish variation, even if there can also be biggish damping force in high-speed motion, and it is able to ascend the damping of damper.
Description
Technical field
The utility model relates to damper technique field, in particular to a kind of electro-rheological fluid damper piston structure.Meanwhile this
Utility model is also related to the electro-rheological fluid damper that a kind of application has the electro-rheological fluid damper piston structure.
Background technique
The damper applied at present is mostly hydraulic damper, generates damping to flow through the energy consumption of throttle orifice by damping fluid
Power, and by change throttle orifice aperture can also the damped coefficient etc. to damper be adjusted.But, hydraulic damper is external
The response of portion's oscillating load is passive type, this will necessarily just reduce the cushion performance and damping of damper.It is directed to
The deficiency of hydraulic damper structure, it has been developed that using the electromagnetic damper structure of emr fluid, but existing electricity
There is also the response times that structure is complicated compared with long, coil magnetic circuit for magnetic damper, occupied space and weight is big and plant maintenance requirement
And the disadvantages of higher cost.
As one kind, intelligence jumpy can occur ER fluid for the rheological behaviors such as viscosity, plasticity under DC Electric Field
Energy material, can become semisolid from the liquid of free-flowing in moment under DC Electric Field, and show controllable bend
Intensity is taken, and this metamorphosis is reversible with the change of electric field, thus the electric current using ER fluid as damping fluid becomes
Damper gradually obtains the attention of researcher.Electro-rheological fluid damper is as a kind of On A Retrofitted Damper structure, because its damping force can
Tune, controllability are strong, and have preferable responsiveness and have good application prospect.
Existing electro-rheological fluid damper structure, the piston rod for generally comprising cylinder body, being equipped with piston, and be arranged in piston
There is electrode, is selected in design using cylinder body or piston shell as ground terminal, when using cylinder body as ground terminal, in cylinder body and electrode
Between generate electric field, correspondingly, ER fluid generates shear stress between cylinder body and electrode.And when using piston shell as connecing
When ground terminal, ER fluid then generates shear stress between electrode and piston shell, and can realize at this time electrode and ground terminal it
Between without relative motion generate.
But, for above two Contact patch, when using cylinder body as ground terminal, in damper piston high-speed motion,
Speed of related movement between cylinder body and electrode is often larger, and biggish decline occurs for the electric field strength that will lead between the two
Subtract, and reduces damper and obtain damping.And when using piston shell as ground terminal, since ER fluid itself is as having
Grain thing liquid body particularity, design gaps are had between piston and cylinder body, at this time ER fluid can by the gap without
It is that damp channel circulates between upper and lower damping cavity, to also will affect the damping of damper.
Utility model content
In view of this, the utility model is directed to a kind of electro-rheological fluid damper piston structure, to be conducive to promote damping
The damping of device.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of electro-rheological fluid damper piston structure, including can socket joint it is fixed on the piston rod and what opposite can be slided be set to
The intracorporal piston shell of damper cylinder, insulation are set to the electrode that can be electrically connected in the piston shell and with the external world, and construction
At the piston shell, both ends are respectively communicated in the damp channel outside the piston shell both ends, the damp channel tool
There is the first passage being interposed between the electrode and the damper cylinder body, and is interposed in what the first passage concatenated
Second channel between the electrode and the piston shell.
Further, the damp channel is in folding type structure along circulating direction.
Further, the crooked place of the damp channel is right angle bending.
Further, the width of the first passage and the second channel is 0.5mm-1.5mm.
Further, the second channel is to be serially connected in two sections of the first passage two opposite sides, and every section of institute respectively
Second channel is stated to be respectively communicated in outside the piston shell end.
Further, the piston shell includes positioned opposite and two along the setting of the axial spacing of the piston rod
End cap is equipped with the mounting hole connecting with the piston rod socket joint in two end caps, and is respectively formed on two end caps
There is the intercommunicating pore for being connected to outside the second channel and the piston shell end；It is sandwiched between two end caps to be fixed with absolutely
Edge bushing, the electrode suit are fixed on the insulating bushing, gap of the first passage between two end caps
In.
Further, the intercommunicating pore is the arcuate socket arranged around the mounting hole.
Further, between the insulating bushing and the end cap and between the insulating bushing and the electrode
It is folded with elastic seal ring.
Further, it is formed with the protrusion externally protruded out in the gap between two end caps on the electrodes, described
One channel is interposed between the protrusion and the damper cylinder body.
Compared with the existing technology, the utility model has the advantage that
The electro-rheological fluid damper piston structure of the utility model, since damp channel is located at electrode and damper cylinder body
Between and electrode and piston shell between, and the damp channel between electrode and damper cylinder body only accounts for integral damping channel
In a part, thus in damper high speed and when low-speed motion, damping force will not generate biggish variation, and even if in height
There can also be biggish damping force under fast motion conditions, and promote the damping of damper.
Meanwhile the piston structure of the utility model is made by being also provided with damp channel between electrode and damper cylinder body
The ER fluid in gap between piston shell and damper cylinder body must be flowed through and also pass through high voltage electric field, electric current can be effectively relieved
Become backlash freedom flowing of the liquid between piston shell and damper shell, the problem of without passing through damp channel, resistance can be reduced
Buddhist nun's loss, increases damping force, and is able to ascend damping.
In addition, making damp channel folding type structure in the utility model, compared to existing linear damp channel, energy
Electric field action area is enough greatly increased, damper may make to can produce bigger damper in the case where same volume, and
The damp channel of folding type can also make ER fluid have bigger energy dissipation in flowing, and can promote the damping of damper
Effect.
The another object of the utility model is to propose a kind of electro-rheological fluid damper, install in the electro-rheological fluid damper
There is electro-rheological fluid damper piston structure as described above.
The electro-rheological fluid damper of the utility model is able to ascend when damper uses by using piston structure as above
Damping, and have good practicability.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.?
In attached drawing:
Fig. 1 is the structural schematic diagram of electro-rheological fluid damper piston structure described in the utility model embodiment one；
Fig. 2 is the structural schematic diagram of end cap described in the utility model embodiment one；
Fig. 3 is the partial enlarged view of part A in Fig. 1；
Fig. 4 is the schematic diagram in the utility model embodiment one under damp channel another kind structure；
Description of symbols:
1- damper cylinder body, 2- piston rod, 3- gasket, 4- elastic seal ring, 5- end cap, 6- electrode, 7- elastic seal ring,
8- insulating bushing, 9- gasket, 10- nut, 11- damp channel；
51- mounting hole, 52- intercommunicating pore, 61- protrusion；
111- first passage, 112- second channel.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
Embodiment one
The present embodiment is related to a kind of electro-rheological fluid damper piston structure, generally comprise can socket joint be fixed on piston rod
It is upper and can the opposite setting slided in the intracorporal piston shell of damper cylinder, insulation set is in piston shell and can be with the external world
The electrode of electrical connection, and be configured at above-mentioned piston shell and both ends and be respectively communicated with and lead in the damping outside piston shell both ends
Road, and the damp channel has the first passage being interposed between electrode and damper cylinder body, and concatenates with first passage
And it is interposed in the second channel between electrode and piston shell.
The above-mentioned piston structure of the present embodiment by make damp channel be located between electrode and damper cylinder body and
Between electrode and piston shell, can also there be biggish damping force in damper high-speed motion, while also may make
The ER fluid in the gap between piston shell and damper cylinder body is flowed through by high voltage electric field, ER fluid can be effectively relieved
It flows freely in gap between piston shell and damper shell, the problem of without passing through damp channel, and then can mention
Rise the damping of damper.
Based on above-mentioned overall structure, a kind of exemplary structure such as Fig. 1 of the present embodiment electro-rheological fluid damper piston structure
To shown in Fig. 3, wherein for ease of description, the present embodiment is installed on piston rod 2 with the piston structure and is located at damper
Situation in cylinder body 1 is illustrated, meanwhile, structure shown in Fig. 1 is the structure chart in Fig. 2 under B-B section.The work of the present embodiment
Plug shell specifically includes two end caps 5 positioned opposite and along the setting of the axial spacing of piston rod 2, is all provided on two end caps 5
Be equipped with the mounting hole 51 for connecting with 2 socket joint of piston rod, and be also respectively formed on two end caps 5 for damp channel 11 with
The intercommunicating pore 52 being connected to outside piston shell end, and the intercommunicating pore 52 is to design around arrange multiple of mounting hole 51 and specifically
For arcuate socket.
It is also sandwiched between two end caps 5 to be fixed with insulating bushing 8, insulating bushing 8 also to be sleeved on piston rod 2, and
Electrode 6 is then set with and is fixed on insulating bushing 8.Meanwhile insulating bushing 8 be also similar to that piston shell and by it is positioned opposite and
Two parts away from setting are constituted, and electrode 6 is folded between two parts of insulating bushing 8, to be formed to 8 overall structure of insulating bushing
Support.In addition, hollow threading hole is provided in piston rod 2, between which passes through between 8 two parts of insulating bushing
Gap is connected to the inside of electrode 6, and electrode 6 can be electrically connected by the conducting wire and external power supply being threaded through in the gap and threading hole
It connects.
In the present embodiment, piston shell on piston rod 2, and is passed through by the shaft shoulder structure positioning that is formed on piston rod 2
Nut 10 by being screwed onto 2 end of piston rod is fixed.At the same time, it is installed on piston rod 2 admittedly to improve piston structure
Fixed stability is also respectively arranged with gasket 3 and gasket 9 in the two opposite sides of piston shell, and two gaskets are all made of existing
Flat shim.And it is close between insulating bushing 8 and the end cap 5 of two sides and between insulating bushing 8 and electrode 6 in order to guarantee
Feng Xing, the present embodiment are provided with elastic seal ring 4 between the end cap 5 of insulating bushing 8 and two sides, in insulating bushing 8 and electricity
Also elastic seal ring 7 is folded between pole 6, meanwhile, elastic seal ring 4 and elastic seal ring 7 are all made of existing nitrile rubber
The O-ring of material.
The present embodiment is formed with gap, first passage 111 above-mentioned between two end caps 5 that piston shell spacing is arranged
In gap i.e. between two side ends lid 5, at this point, second channel above-mentioned 112 is then specially to be serially connected in first passage respectively
Two sections of 111 two opposite sides, and the second channel 112 of two sides is respectively communicated with via the intercommunicating pore 52 on end cap 5 in piston shell
Outside the end of body.
Still as shown in Fig. 1 or Fig. 3, gap of the first passage 111 between two sides end cap 5 is corresponded in the present embodiment
In setting, the protrusion 61 being also formed in the gap between the end cap 5 for externally protruding out in two sides on the electrode 6, at this point, first passage
111 are specifically interposed between the protrusion 61 and damper cylinder body 1, and guarantee the width k of first passage 111 in above-mentioned numerical value
In section.
The structure of protrusion 61 by electrode 6 and thereon designs and its cooperation between piston shell, the present embodiment
The damp channel 11 being made of first passage 111 and second channel 112 is rendered as folding type structure along its circulating direction, and damps
The crooked place in channel 11 specifically also bends for right angle.In addition, the present embodiment is in specific design, first passage 111 and the
The width k in two channels 112 may be alternatively provided as 0.5mm-1.5mm, such as it can be 0.8mm, 1mm, 1.2mm etc..
ER fluid mobility status of the piston structure of the present embodiment when damper works is as shown in Figure 3, works as piston
When structure moves in damper cylinder body 1 with piston rod 2, the ER fluid in the damping cavity of piston side is by a side end cap
Intercommunicating pore 52 on 5 enters in piston shell, then enters back into the second channel 112 of side.Then, ER fluid is by side
Second channel 112 enter in first passage 111, and after entering back into the second channel 112 of the other side, finally by another side
Intercommunicating pore 52 on lid 5 enters in the damping cavity of the other side.
At the same time, the ER fluid flowed in the gap between piston shell namely end cap 5 and damper cylinder body 1
It can enter in first passage 111.As a result, under external power supply power supply, piston shell and damper cylinder body 1 are used as ground terminal,
And in the first passage 111 between electrode 6 and damper cylinder body 1 and the second channel between electrode 6 and piston shell
High voltage electric field is generated in 112.The ER fluid of flowing material shape under the action of high voltage electric field changes, so as to make
It obtains damper and generates damping force, to realize damping.
In addition, also it should be further noted that in addition to such as above-mentioned the made in damp channel 11 in the present embodiment
One channel 111 is that also may make first passage 111 certainly between two sections of second channels 112 and second channel 112 is one
Section.At this point, for example can be as shown in Figure 4, the protrusion 61 on electrode 6 can be made to be located at one end of electrode 6, and leaning in piston shell
It is bordering between one end of the protrusion 61 and damper cylinder body 1 that there are the ER fluid channels being connected to first passage 111 (namely one
Intercommunicating pore 52 on side end cap 5 is located at the edge of end cap 5).In use, ER fluid is entered by the ER fluid channel
First passage 111, then second channel 112 is entered by first passage 111, and flowed out by the other side of piston shell.
Embodiment two
The present embodiment is related to a kind of electro-rheological fluid damper, is installed with as described in embodiment one in the electro-rheological fluid damper
Electro-rheological fluid damper piston structure, and the electro-rheological fluid damper of the present embodiment is by using the piston structure of embodiment one, energy
Damping when damper uses enough is promoted, and has good practicability.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. a kind of electro-rheological fluid damper piston structure, including can socket joint be fixed on piston rod (2) and can opposite sliding be set to
Piston shell in damper cylinder body (1), insulation are set to the electrode (6) that can be electrically connected in the piston shell and with the external world, with
And be configured at the piston shell, both ends and be respectively communicated in the damp channel (11) outside the piston shell both ends, it is described
Damp channel (11) has the first passage (111) being interposed between the electrode (6) and the damper cylinder body (1), and
The second channel (112) being interposed between the electrode (6) and the piston shell concatenated with the first passage (111).
2. electro-rheological fluid damper piston structure according to claim 1, it is characterised in that: the damp channel (11) is along stream
Logical direction is in folding type structure.
3. electro-rheological fluid damper piston structure according to claim 2, it is characterised in that: the damp channel (11) it is curved
Position is rolled over for right angle bending.
4. electro-rheological fluid damper piston structure according to claim 1, it is characterised in that: the first passage (111) and
The width of the second channel (112) is 0.5mm-1.5mm.
5. electro-rheological fluid damper piston structure according to any one of claim 1 to 4, it is characterised in that: described second
Channel (112) is to be serially connected in two sections of the first passage (111) two opposite sides, and every section of second channel (112) respectively
It is respectively communicated in outside the piston shell end.
6. electro-rheological fluid damper piston structure according to claim 5, it is characterised in that: the piston shell includes opposite
Arrangement and along the axial spacing of the piston rod (2) setting two end caps (5), in two end caps (5) be equipped with it is described
The mounting hole (51) of piston rod (2) socket joint connection, and the second channel is supplied in being respectively formed on two end caps (5)
(112) with the intercommunicating pore (52) that is connected to outside the piston shell end；It is sandwiched between two end caps (5) to be fixed with insulation lining
It covers (8), electrode (6) suit is fixed on the insulating bushing (8), and the first passage (111) is located at two end caps
(5) in the gap between.
7. electro-rheological fluid damper piston structure according to claim 6, it is characterised in that: the intercommunicating pore (52) is around institute
State the arcuate socket of mounting hole (51) arrangement.
8. electro-rheological fluid damper piston structure according to claim 6, it is characterised in that: the insulating bushing (8) with
It is folded with elastic seal ring (4,7) between the end cap (5) and between the insulating bushing (8) and the electrode (6).
9. electro-rheological fluid damper piston structure according to claim 6, it is characterised in that: formed on the electrode (6)
There is the protrusion (61) externally protruded out in the gap between two end caps (5), the first passage (111) is interposed in the protrusion
(61) between the damper cylinder body (1).
10. a kind of electro-rheological fluid damper, it is characterised in that: in being installed in the electro-rheological fluid damper as in claim 1 to 9
Described in any item electro-rheological fluid damper piston structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820828730.4U CN208281419U (en) | 2018-05-30 | 2018-05-30 | Electro-rheological fluid damper piston structure and electro-rheological fluid damper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820828730.4U CN208281419U (en) | 2018-05-30 | 2018-05-30 | Electro-rheological fluid damper piston structure and electro-rheological fluid damper |
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| Publication Number | Publication Date |
|---|---|
| CN208281419U true CN208281419U (en) | 2018-12-25 |
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ID=64705573
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820828730.4U Active CN208281419U (en) | 2018-05-30 | 2018-05-30 | Electro-rheological fluid damper piston structure and electro-rheological fluid damper |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443393A (en) * | 2018-05-30 | 2018-08-24 | 宁波麦维科技有限公司 | Electro-rheological fluid damper |
-
2018
- 2018-05-30 CN CN201820828730.4U patent/CN208281419U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443393A (en) * | 2018-05-30 | 2018-08-24 | 宁波麦维科技有限公司 | Electro-rheological fluid damper |
| CN108443393B (en) * | 2018-05-30 | 2020-02-21 | 宁波麦维科技有限公司 | Current variable damper |
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