CN108571557A - Reciprocating damper - Google Patents
Reciprocating damper Download PDFInfo
- Publication number
- CN108571557A CN108571557A CN201810542233.2A CN201810542233A CN108571557A CN 108571557 A CN108571557 A CN 108571557A CN 201810542233 A CN201810542233 A CN 201810542233A CN 108571557 A CN108571557 A CN 108571557A
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- cylinder body
- piston
- piston rod
- electrode
- inner cylinder
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- 239000012530 fluid Substances 0.000 claims abstract description 50
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 238000003780 insertion Methods 0.000 claims abstract description 3
- 230000037431 insertion Effects 0.000 claims abstract description 3
- 239000011148 porous material Substances 0.000 claims description 13
- 229920001971 elastomer Polymers 0.000 claims description 12
- 239000000806 elastomer Substances 0.000 claims description 12
- 238000010992 reflux Methods 0.000 claims description 10
- 238000007790 scraping Methods 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 2
- 238000013016 damping Methods 0.000 abstract description 34
- 239000007788 liquid Substances 0.000 abstract description 13
- 238000007667 floating Methods 0.000 abstract description 11
- 230000007812 deficiency Effects 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract description 2
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- 238000002955 isolation Methods 0.000 description 3
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- 210000001124 body fluid Anatomy 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3214—Constructional features of pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/36—Special sealings, including sealings or guides for piston-rods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/532—Electrorheological [ER] fluid dampers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/535—Magnetorheological [MR] fluid dampers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The present invention provides a kind of reciprocating dampers comprising cylinder body, piston rod, piston and side air cavity；Wherein, cylinder body has the outer cylinder body and inner cylinder body being nested in together, and one end of piston rod is inserted into cylinder body, and is fixed with sealing mechanism in the open end of cylinder body；Piston is connected in the insertion end of piston rod, and the oiling chamber positioned at piston both sides is formed in inner cylinder body, and the damp channel of connection both sides oiling chamber is configured at piston；Side air cavity is enclosed with inner cylinder body or outer cylinder body by elastic diaphragm and is configured between inner cylinder body and outer cylinder body, and along the radial direction of cylinder body, is formed with the side oil pocket for being separated by elastic diaphragm and being connected to the oiling chamber of piston side outside in side air cavity.The damper of the present invention can avoid the deficiency of floating piston arrangement without existing floating piston arrangement, while can also be suitable for electromagnetism and become the intelligent damping liquid containing particle such as liquid, ER fluid, and conducive to the popularization and application of electromagnetism rheological damper.
Description
Technical field
The present invention relates to damper technique field, more particularly to a kind of reciprocating damper.
Background technology
It is directed to reciprocating damper, such as conventional hydraulic damper, generally floating piston is used to make in its cylinder body
For isolation element, to realize the isolation between high pressure air cavity and the damping cavity for being filled with damping fluid.But due to floating piston arrangement
It is difficult to obtain the higher dynamic sealing of reliability, and it is to the more demanding of the machining accuracy of cylinder body contact site and sealing ring,
Long-time service is easy to cause sealing ring failure, while the friction between floating piston and cylinder body also will produce more heat, and
Influence the using effect of damper.In addition, the existing isolation structure using floating piston, because of floating piston and inboard wall of cylinder block
Between opposite sliding, be not suitable for becoming the damper of the intelligent damping liquid containing particle such as liquid, ER fluid using electromagnetism yet,
To be unfavorable for the popularization and application of electromagnetism rheological damper.
Invention content
In view of this, the present invention is directed to propose a kind of reciprocating damper, can avoid existing floating piston arrangement not
Foot, and be applicable to electromagnetism and become the intelligent dampings liquid such as liquid and ER fluid.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
A kind of reciprocating damper comprising：
Cylinder body, the cylinder body, which has, to be nested in together and relatively-stationary outer cylinder body and inner cylinder body, and the one of the cylinder body
End opening is arranged, and the other end is configured with the interconnecting piece being connect with external component；
One end of piston rod, the piston rod is inserted by the open end of the cylinder body in the cylinder body, and in the cylinder body
Open end be fixed with the sealing mechanism between the cylinder body and the piston rod；
Piston is connected in the insertion end of the piston rod and slides in the inner cylinder body, because of institute in the inner cylinder body
The oiling chamber positioned at the piston both sides that is separated to form of piston is stated, and is configured at the piston and is noted described in connection both sides
The damp channel of oil pocket；
Side air cavity, between the inner cylinder body and the outer cylinder body, the side air cavity is by elastic diaphragm and the inner casing
Body or the outer cylinder body are enclosed and are configured to, and along the radial direction of the cylinder body, are formed with by the elastic diaphragm in outside the side air cavity
The side oil pocket for separating and being connected to the oiling chamber of the piston side.
Further, the side air cavity, which is enclosed by the elastic diaphragm with the outer cylinder body, is configured to；And the elastic diaphragm
It is abutted by the septum clip for being located at the elastic diaphragm both ends and being interposed between the inner cylinder body and the outer cylinder body
It is fixed on the outer cylinder body, the side oil pocket passes through the through-hole being configured on the septum clip of one end and the oiling chamber
Connection.
Further, the piston includes the piston shell of socket joint fixation on the piston rod, and insulation is set on the work
In plug shell and it can be configured in the piston shell and be interposed in described with the extraneous electrode that be electrically connected, the damp channel
Between electrode and the piston shell；Further include being set to being penetrated through to the inner casing by the damp channel on the piston shell
Hollow out at body, and in the hollow out be equipped with can because pressure-bearing, due to squeeze be connected to the hollow out side inner wall and it is described in
Elastomer between cylinder body.
Further, the piston shell includes positioned opposite and be arranged along the axial spacing of the piston rod two
End cap is equipped with the mounting hole being connect with the piston rod socket joint in two end caps, and is respectively formed on two end caps
There is the intercommunicating pore being connected to the oiling chamber for the damp channel；The hollow out is made of the gap between two end caps,
And it is sandwiched between two end caps be fixed with insulating bushing, the electrode suit is fixed on the insulating bushing.
Further, the elastomer is the elastic seal ring in the gap between two end caps.
Further, the piston includes the piston shell that socket joint is fixed on the piston rod, and insulation is set to institute
The electrode that can be electrically connected in piston shell and with the external world is stated, the damp channel is configured at the piston shell, and the resistance
Buddhist nun channel has the first passage being interposed between the electrode and the inner cylinder body, and the folder concatenated with the first passage
Set the second channel between the electrode and the piston shell.
Further, the piston shell includes positioned opposite and be arranged along the axial spacing of the piston rod two
End cap is equipped with the mounting hole being connect with the piston rod socket joint in two end caps, and is respectively formed on two end caps
There is the intercommunicating pore being connected to the oiling chamber for the second channel；It is sandwiched between two end caps to be fixed with insulating bushing,
Electrode suit is fixed on the insulating bushing, and between being formed with and being externally protruded out between two end caps on the electrode
Convex block in gap, the first passage are interposed between the convex block and the inner cylinder body.
Further, the sealing mechanism includes being sheathed on the piston rod and being fixed in the cylinder body open end
Seal receptacle, and the oil sealing that is arranged on the seal receptacle and is sheathed on the piston rod in the open end of the cylinder body；
Further include being set in the seal receptacle, being single to constitute the fluid reflux of the one-way conduction between the oiling chamber at the oil sealing
Member.
Further, the fluid reflux unit includes being formed in being communicated at the oil sealing in the seal receptacle and institute
The return flow line between oiling chamber, and the unidirectional valve member in the return flow line are stated, and the unidirectional valve member is constructed
Pressure for that can be undertaken in the oiling intracavitary blocks the return flow line.
Further, the unidirectional valve member is y-type seal ring；And it is arranged in being equipped with piston rod described in ring in the seal receptacle
Oil-scraping ring.
Compared with the existing technology, the present invention has the advantage that：
The damper of the present invention can be lived by separating setting air cavity structure by elastic diaphragm without existing floating
Plug structure, can avoid the deficiency of floating piston arrangement, while can also be suitable for electromagnetism become liquid, ER fluid etc. containing
The intelligent damping liquid of grain, and then the popularization of electromagnetism rheological damper can be conducive to.And make side air cavity structure in the side of damper
Setting, and arrange along the radial direction of cylinder body between side air cavity and side oil pocket, additionally it is possible to the entire length of damper is effectively reduced, is increased
Damper stroke, and conducive to the application of damper.
Meanwhile in damper of the invention so that damp channel is between electrode and piston shell, in damper high speed
And when low-speed motion, the consistency of electric field strength can be kept, the damping force of generation may make not will produce apparent variation,
And promote the damping of damper.And by the setting of elastomer, ER fluid can be effectively reduced in piston shell and damping
Backlash freedom flowing between device shell, the problem of without passing through damp channel, can reduce damping loss, increase damping force,
Further to promote damping.
And the electro-rheological fluid damper of the present invention is changed by the height to both sides end cap, or to the end cap of both sides
The distance between electrode is changed, and different damping forces can be also generated in damper compression travel and stretching travel, into
And may make damper acting damping force and recovery damping force of different sizes, and damper can be made to have and be more widely applied
Foreground.
In addition, so that damp channel is located between electrode and damper cylinder body and electrode and piston in the present invention
Between shell, and the damp channel between electrode and damper cylinder body only accounts for the part in integral damping channel, in damper
High speed and when low-speed motion, damping force not will produce larger variation, and can have even if high-speed motion compared with
Big damping force, so as to promote the damping of damper.
And by being also provided with damp channel between electrode and damper cylinder body, the present invention also may make and flow through in piston
The ER fluid in gap also passes through high voltage electric field between shell and damper cylinder body, and ER fluid can be effectively relieved in piston shell
Backlash freedom flowing between body and damper shell, the problem of without passing through damp channel, can reduce damping loss, increase resistance
Buddhist nun's power, and damping can be promoted.
In addition, in the present invention by be arranged in the seal receptacle of sealing mechanism can make at oil sealing with one-way conduction in cylinder body
Fluid reflux unit, in damper in use, downlink namely piston rod with piston rod are retracted into cylinder body, fluid reflux
Unit conducting can be such that the fluid entered at oil sealing with piston rod uplink is back in cylinder body, can avoid damping fluid in oil with this
Accumulation at envelope, and for piston rod again uplink and enter oil sealing at damping fluid space is provided, to can avoid oil sealing by
Damping fluid impacting with high pressure and damage, reduce the possibility of oil seal failure, and can ensure the sealing effect of damper oil sealing.
Description of the drawings
The attached drawing for constituting the part of the present invention is used to provide further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is the structural schematic diagram of the reciprocating damper described in the embodiment of the present invention one；
Fig. 2 is the partial enlarged view of part A in Fig. 1；
Fig. 3 is the structural schematic diagram of the sealing mechanism described in the embodiment of the present invention one；
Fig. 4 is the partial enlarged view of part B in Fig. 1；
Fig. 5 is the structural schematic diagram of the piston described in the embodiment of the present invention one；
Fig. 6 is the structural schematic diagram of the end cap described in the embodiment of the present invention one；
Fig. 7 is the flow graph of damper ER fluid in stretching travel described in the embodiment of the present invention one；
Fig. 8 is the structural schematic diagram of the piston described in the embodiment of the present invention two；
Reference sign：
1- outer cylinder bodies, 2- end sockets, 3- connecting holes, 4- piston rods, 5- harness hole, 6- connector sleeves, 61- harness fairleads, 7-
Sealing mechanism, 8- inner cylinder bodies, the first septum clips of 9-, chucking cylinder in 10-, 11- pistons, the second septum clips of 12-, 121- are logical
Hole, 13- elastic diaphragms, 14- oiling chambers, the sides 15- oil pocket, the sides 16- air cavity, 17- end caps, 171- mounting holes, 172- intercommunicating pores,
18- insulating bushings, 19- electrodes, 191- convex blocks, 20- nuts, 21- gaskets, 22- gaskets, 23- elastic seal rings, 24- elasticity are close
Seal, 25- damp channels, 251- first passages, 252- second channels, 26- elastomers, 27- external seal seats, 28- oil sealings, 281-
Oil tight skeleton, 29- interior sealing seats, 291- grooves, 30- elastic seal rings, 31- oil-scraping rings, 32- elastic seal rings, 33- baffle rings,
34- bushings, the return flow lines 35-, the unidirectional valve members of 36-, 100- protrusions, 101- notches.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention 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 reciprocating damper, includes the cylinder of one end open setting in the damper overall structure
Body, the piston rod that one end is equipped with piston and is inserted into cylinder body, and be isolated in cylinder body and with the oiling chamber in cylinder body and set
The side air cavity set.It is combined by Fig. 1 shown in Fig. 2, wherein cylinder body is by nesting together and relatively-stationary outer cylinder body 1 and inner casing
Body 8, and being constituted positioned at end socket 2 of the cylinder body one end with connecting hole 3, should be constituted with end socket 2 of connecting hole 3 cylinder body with
The interconnecting piece of external component connection.One end that piston rod 4 is equipped with piston 11 is inserted into inner cylinder body 8, and piston 11 can be along inner cylinder body 8
Inner wall sliding, and the oiling chamber 14 in cylinder body namely in inner cylinder body 8 is separated into the two parts split in 11 both sides of piston.
It is also equipped with the sealing mechanism 7 between cylinder body and piston rod 4 in the open end of cylinder body, and between inner cylinder body 8 and outer cylinder body 1
Inner cylinder body fixture 10 i.e. by sealing mechanism 7, and positioned at 2 one end of end socket is supported, to realize between the two relatively solid
It is fixed.
Side air cavity 16 above-mentioned i.e. between inner cylinder body 8 and outside cylinder 1, and the side air cavity 13 particularly also by elasticity every
Film 13 encloses structure with outer cylinder body 1 and forms, meanwhile, side air cavity 16 be also along the axially extending of cylinder body, and thus along the radial direction of cylinder body,
It is also further defined outside side air cavity 16 and side oil pocket 15 made of structure is enclosed by elastic diaphragm 13 and inner cylinder body 8, side oil pocket 15 passes through
Elastic diaphragm 13 is separated with side air cavity 16, and side oil pocket 15 is also set to be connected with the oiling chamber 14 positioned at 11 side of piston
It is logical.
Specifically, being incorporated into shown in Fig. 2, the both ends of elastic diaphragm 13 are respectively by being interposed in inner cylinder body 8 and outer cylinder body 1
Between the first septum clip 9 and the second septum clip 12 be fixed, wherein in the second diaphragm close to 2 side of end socket
It is formed with through-hole 121 on fixture 12, and notch 101, side oil pocket 15 are also formed in one end that interior chucking cylinder 10 connects with end socket 2
Can via the through-hole 121 on the second septum clip 12 and the notch 101 on interior chucking cylinder 10 and finally with 11 side of piston
Oiling chamber 14 be connected to.
In the present embodiment, the through-hole 121 on the second septum clip 12 can be more along the circumferentially disposed of the second septum clip 12
A, the setting of the through-hole 121 can play certain throttling action to flowing of the damping fluid between side oil pocket 15 and oiling chamber 14,
Stationarity when so as to advantageously ensure that piston 11 and piston rod 4 move, certainly in notch 101 on chucking cylinder 10 setting
Also there is certain restriction effect.In addition, in addition to elastic diaphragm 13 is fixed on outer cylinder body 1 by such as above-mentioned septum clip by both ends
On, also elastic diaphragm 13 will be made to be fixed on inner cylinder body 8 in the present embodiment, to make side air cavity 16 by elastic diaphragm 13 and inner casing
Body 8, which encloses, to be configured to, and side oil pocket 15 is then between elastic diaphragm 13 and outer cylinder body 1, at this point, side oil pocket 15 can still pass through second
The notch 101 on through-hole structure and interior chucking cylinder 10 on septum clip 12 is connected to oiling chamber 14.
The axial length of the present embodiment inner cylinder body 8 is less than outer cylinder body 1, and then the open end of cylinder body is to be formed by outer cylinder body 1,
Big portion's structure civilian dress of sealing mechanism 7 above-mentioned is located in outer cylinder body 1.The concrete structure of sealing mechanism 7 can be as shown in Figure 3,
It, which is specifically included, is set on piston rod 4, and is fixed on being made of external seal seat 27 and interior sealing seat 29 in cylinder body open end
Seal receptacle, external seal seat 27 and interior sealing seat 29 can be steel structure, and external seal seat 27 is close to the open end of cylinder body
Setting, interior sealing seat 29 are then stacked in the side of external seal seat 27, meanwhile, it is also set between outer seal receptacle 19 and interior sealing seat 21
It is equipped with sealing ring 30, and one end of interior sealing seat 29 close to inner cylinder body 8 is inserted into inner cylinder body 8, is formed to inner cylinder body 8 with this
Fixed setting in outer cylinder body 1.
It is additionally provided with and is set on piston rod 4 and to be embedded the oil sealing in 27 end of outer seal receptacle in the open end of cylinder body
28, containing oil tight skeleton 281 to ensure the stability of 28 structure of oil sealing in oil sealing 28, and the oil sealing 28 is using existing component
It can.And the sealing mechanism of the present embodiment still further comprises the fluid reflux unit being arranged in above-mentioned seal receptacle, which returns
Stream unit may make up the one-way conduction at oil sealing 28 between oiling chamber 14, to may make the ER fluid entered at oil sealing 28
It is back in oiling chamber 14.
Specifically, above-mentioned fluid reflux unit include at the connection oiling chamber 14 being formed in seal receptacle and oil sealing 28 it
Between return flow line 35, and the return flow line 35 is specifically by the return port being opened on interior sealing seat 29, and with the return port
The gap between interior sealing seat 29 and external seal seat 27 of perforation is constituted, and oil sealing 28 is located at the side in the gap, and
It is also formed at oil sealing 28 for storing the space of fluid.
The present embodiment is also equipped with unidirectional valve member 36 in return flow line 35, which can be undertaken in from oiling
The pressure of chamber 14, and can realize the closure to return flow line 35, when being removed to the pressure in oiling chamber 14, the unidirectional valve member
36 conductings that can be realized again to return flow line 35, to realize reflux of the fluid into oiling chamber 14.In the present embodiment, this is unidirectional
Valve member 36 is specifically using the y-type seal ring being set in the gap between external seal seat 27 and interior sealing seat 29.Except of course that adopting
With y-type seal ring, unidirectional valve member 36 also can be the existing one-way valve structures of other achievable one-way conductions.
The present embodiment is further additionally provided with the oil-scraping ring 31 of the arrangement of ring piston rod 4, the frizing in interior seal receptacle 28
Ring 31 is supported by the elastic seal ring 32 positioned at one side, and is determined by baffle ring 33 of the holding in interior seal receptacle 29
Position.And in addition to oil-scraping ring 31, the present embodiment is also equipped in interior seal receptacle 29 to be sheathed on adjacent to what the oil-scraping ring 31 was arranged
Bushing 34 on piston rod 4.Oil-scraping ring 31 specifically uses the existing component of polytetrafluoroethylene (PTFE)+bronze material, and bushing 34 is then
Can be SF-1 materials to be oriented to the movement of piston rod 4.It can be in 4 upstroke of piston rod by the setting of oil-scraping ring 31
The particulate matter on its periphery wall is wiped off, so as to protect oil sealing 28, in addition, by the design of above-mentioned fluid reflux unit, also
The high-voltage oil liquid at oil sealing 28 may make to flow back in 4 downlink of piston rod, to also can reach the effect of protection oil sealing 28.
Shown in Fig. 4, the present embodiment is formed with inwardly projecting protrusion 100 on outer cylinder body 1, is sealing accordingly
It is also equipped with groove 291 on interior sealing seat 29 in seat, after sealing mechanism 7 is installed in cylinder body, protrusion 100 and groove 291
It contacts, meanwhile, thus sealing mechanism 7 can be integrally attached to opening for cylinder body by the opening of outer cylinder body 1 also fold inward
Mouth end.
In the present embodiment, for the piston 11 being installed on piston rod 4, the note for being configured with connection both sides is being arranged inside
Damp channel between oil pocket 14, and in specific design, which for example can be used the work in existing conventional damper
Plug structure, at this point, the movement of damp channel at piston 11 with piston 11, play in oiling chamber 14 fluid namely damping
The effect that liquid throttles, and thus generate the damping force of damper.And in addition to for conventional hydraulic retarder structure, the present embodiment
In damper be alternatively electro-rheological fluid damper or MR damper using intellectual materials such as ER fluid or magnetorheological fluids.
When damper is MR damper, the structure of piston 11 can be found in existing disclosed MR damper
Piston structure is no longer described in detail herein.And when for electro-rheological fluid damper structure, a kind of structure shape of piston 11
Formula is as shown in Figure 5, meanwhile, structure shown in Fig. 5 is also the structure chart in Fig. 6 under C-C sections.At this point, the work of the present embodiment
Plug 11 is fixed on the piston shell on piston rod 4 including socket joint, and insulation is set in the piston shell and can be electrically connected with the external world
The electrode 19 connect, above-mentioned damp channel 25 are configured in piston shell and are interposed between electrode 19 and piston shell.And it lives
Plug 11 further includes the hollow out by the perforation of damp channel 25 to inner cylinder body 8 being set on piston shell, and is arranged in hollow out
Have can because pressure-bearing, due to squeeze the elastomer 26 being connected between the side inner wall of hollow out and inner cylinder body 8.
Specifically, piston shell specifically includes two end caps positioned opposite and being arranged along the axial spacing of piston rod 4
17, the mounting hole 171 for being connected with 4 socket joint of piston rod is both provided on two end caps 17, and on two end caps 17
It is respectively formed with the intercommunicating pore 172 being connected to the oiling chamber 14 of 11 both sides of piston for the damp channel 25 in piston 11, and the company
Through-hole 172 is around arrange multiple of mounting hole 171 and to be designed specifically to arcuate socket.
It is sandwiched between two end caps 17 to be fixed with insulating bushing 18, insulating bushing 18 be also be sleeved on piston rod 4, and
Electrode 19 is then set with and is fixed on insulating bushing 18.Meanwhile insulating bushing 18 be also similar to that piston shell and by positioned opposite and
Two parts of spacing setting are constituted, and electrode 19 is folded between two parts of insulating bushing 18, whole to insulating bushing 18 to be formed
The support of body structure.In addition, be provided with hollow harness hole 5 in piston rod 4, which passes through insulating bushing 18 two
/ gap be connected to the inside of electrode 19, and piston rod 4 be located at outside cylinder body on the connector sleeve 6 of one end be also equipped with and
The harness fairlead 61 that harness hole 5 is connected to, electrode 19 can be by being threaded through in the gap, harness hole 5 and harness fairlead 61
Conducting wire and external power supply electrical connection.
In the present embodiment, piston shell on piston rod 4, and is passed through by the shaft shoulder structure positioning that is formed on piston rod 4
Nut 20 by being screwed onto 4 end of piston rod is fixed.At the same time, to improve, piston 11 is whole to be installed on piston rod 4
Fixed stability is also respectively arranged with gasket 21 and gasket 22 in the two opposite sides of piston shell, and two gaskets are all made of existing
Some flat shims.And in order to ensure between insulating bushing 18 and the end cap 17 of both sides and insulating bushing 18 and electrode 19
Between leakproofness, the present embodiment is both provided with elastic seal ring 24 between the end cap 17 of insulating bushing 18 and both sides, exhausted
Also elastic seal ring 23 is folded between edge bushing 18 and electrode 19, and elastic seal ring 23 and elastic seal ring 24 are all made of now
The O-ring of some nitrile rubber materials.
The present embodiment is formed with gap between two end caps 17 that piston shell spacing is arranged, above-mentioned to be located at piston shell
Being made of the gap the perforation of damp channel 25 to the hollow out at inner cylinder body 8 on body, and simultaneously, be arranged in the hollow out
Elastomer 26 is specially using the elastic seal ring being embedded in the gap between both sides end cap 17.The elastic seal ring is using existing
The O-ring of some nitrile rubber materials, in its natural state its can respectively with the two side of above-mentioned hollow out namely both sides
The end face of end cap 17 abuts against, to ensure that elastomer 26 can stablize is arranged in hollow out.
Still as shown in Figure 5, the damp channel 25 between electrode 19 and piston shell of the present embodiment is flowed along it
Logical direction is rendered as folding type structure, and the crooked place of damp channel 25 is also specifically that right angle is bent.In addition, the present embodiment
In specific design, the width of damp channel 25 may be alternatively provided as 0.5mm-1.5mm, such as it can be 0.8mm, 1mm, 1.2mm
Deng.
Fluid namely ER fluid mobility status of the piston 11 of the present embodiment when damper works are as shown in Figure 7,
At this point, piston 11 is moved with piston rod 4 in cylinder body, and the stretching travel in damper uses under ER fluid pressure
Flexible deformation occurs for the elastomer 26 of elastic packing coil structures, and blocks the clearance channel from b to e.At this point, 11 side of piston
Intercommunicating pore 172 enters in piston on end cap 17 of the ER fluid through corresponding side in oiling chamber 14 at a, due to the envelope of elastomer 26
It is stifled, after ER fluid a, b at is converged by the flow direction of diagram at c, to d at flowing, and via the intercommunicating pore 172 on end cap 17
Into in the oiling chamber 14 of 11 other side of piston.
In the flowing of ER fluid, under external power supply power supply, piston shell is used as ground terminal, and in 19 He of electrode
Generate high voltage electric field in damp channel 25 between piston shell, the ER fluid of flowing material under the action of high voltage electric field
Form changes, to may make damper to generate damping force, to realize damping.And when damper is in compression travel
When, elastomer 26 blocks the channel from e to b, and the flow situation of ER fluid is similar with stretching travel, and details are not described herein.
The present embodiment also needs to further illustrate, in the specific implementation, by changing the end cap 17 in piston shell
Height (namely end cap 17 is along the axial thickness value of piston rod 4) so that the height of both sides end cap 17 is different, to make both sides
The length that end cap is in the ER fluid flow channel on the directions a-d is different.Alternatively, internal diameter or electrode by changing end cap 17
19 outer diameter etc., so that the distance between the end cap 17 of both sides and electrode 19 namely positioned at damp channel 25 between the two
Width changes, and makes end cap 17 of both sides and the distance between electrode 19 different, can also realize damper in compressed line
The difference of damping force in journey and stretching travel, to increase the application range of damper.The components design parameters such as end cap 17, electrode 19
The visual damper application scenarios of adjusting and selected, this is no longer described in detail in the present embodiment.
For the damper of the present embodiment in specific manufacture, outer cylinder body 1 and inner cylinder body 8 and piston rod 4 use steel material,
Aluminum alloy material or steel, the first septum clip 9 and the second septum clip can be used in inside and outside seal receptacle in sealing mechanism 7
12 can be used the enhancing nylon of addition glass fibre.Steel can be used in end cap 17 in piston 11, and insulating bushing 18 can be used poly-
Tetrafluoroethene, electrode 19 can be such as 316L stainless steels.And interior chucking cylinder 10 or polytetrafluoroethylene (PTFE) material, enclose configuration
Hydrogenated nitrile-butadiene rubber material then can be used at the elastic diaphragm 13 of side air cavity 16.
At work, when 11 uplink of piston namely damper are in stretching travel, fluid is logical for the damper of the present embodiment
The damp channel 25 crossed on piston 11 is flowed into the oiling chamber 14 close to 7 side of sealing mechanism, the fluid in side oil pocket 15
It reduces, elastic diaphragm 13 deforms and air cavity 16 volume in side increases, and air pressure reduces, and cylinder part is left for compensating piston bar 4
Volume.And work as 11 downlink of piston, damp channel 25 reverse flow of the fluid on piston 11, since piston rod 4 enters cylinder body
In, fluid approaching side oil pocket 15 simultaneously squeezes elastic diaphragm 13, and elastic diaphragm 13 deforms so that air cavity 16 volume in side reduces, and air pressure increases
Add, to accept the volume that piston rod 4 enters cylinder part.
By the yielding characteristic of elastic diaphragm 13, the effect of existing floating piston arrangement can not only be replaced, and
Also fluid and gas can effectively be completely cut off, to ensure the stability of damper work.In addition, in the flowing of ER fluid,
Under external power supply power supply, piston shell is used as ground terminal, is produced in the damp channel 25 between electrode 19 and piston shell
Raw high voltage electric field, the ER fluid of flowing material shape under the action of high voltage electric field changes, to may make damper
Damping force is generated, to realize damping.
Embodiment two
The present embodiment is related to a kind of reciprocating damper, has the damper same structure with embodiment one,
The difference is that the structure of the piston 11 in the damper of the present embodiment is as shown in Figure 8, wherein piston 11 at this time also wraps
The piston shell that socket joint is fixed on piston rod 4 is included, and insulation is set to the electrode that can be electrically connected in piston shell and with the external world
19, damp channel 25 is also set at piston shell, and the damp channel 25 of the present embodiment have be interposed in electrode 19 with it is interior
First passage 251 between cylinder body 8, and being concatenated with first passage 251, being interposed between electrode 19 and piston shell
Two channels 252.
Specifically, the piston shell of the present embodiment is also to include positioned opposite and be arranged along the axial spacing of piston rod 4
Two end caps 17, the structure of end cap 17 is identical as shown in Fig. 6, be both provided on two end caps 17 for and piston rod 4
The mounting hole 171 of socket joint connection, and also it is respectively formed on two end caps 17 note for damp channel 25 and 11 both sides of piston
The intercommunicating pore 172 that oil pocket 14 is connected to, intercommunicating pore 172 is also multiple to be arranged around mounting hole 171, and is designed specifically to arc
Hole.
The sandwiched fixed insulating bushing 18 between two end caps 17, insulating bushing 18 are also to be sleeved on piston rod 4, electrode
19 suits are fixed on insulating bushing 18, and insulating bushing 18 is also that the two parts being arranged by positioned opposite and spacing are constituted, electricity
Pole 19 is folded between two parts of insulating bushing 18, is formed to 18 integrally-built support of insulating bushing.Electrode 6 is also by wearing
Conducting wire in the harness hole 5 in gap and piston rod 4 between 18 two parts of insulating bushing and external power supply electrical connection.
The piston shell of the present embodiment again by the shaft shoulder structure positioning being formed on piston rod 4 on piston rod 4, and
It is fixed via the nut 20 for being screwed onto 4 end of piston rod.It is also respectively arranged with gasket in the two opposite sides of piston shell, is
Ensure between insulating bushing 18 and the end cap 17 of both sides and the leakproofness between insulating bushing 18 and electrode 19, is served as a contrast in insulation
It is also folded with elastic seal ring between set 18 and the end cap 17 of both sides and between insulating bushing 18 and electrode 19, the elasticity is close
Seal equally uses the O-ring of existing nitrile rubber material.
In the present embodiment, gap is formed between two end caps 17 of piston shell spacing setting, above-mentioned first is logical
Road 251 is in gap positioned at two side ends lid 17 between, at this point, above-mentioned second channel 252 is then specially serially connected in the respectively
Two sections of one channel, 251 two opposite sides, and the second channel 252 of both sides is respectively communicated with via the intercommunicating pore 172 on end cap 17
In outside the both sides of piston 11.
Still as shown in Figure 8, correspond in gap of the first passage 251 between both sides end cap 17 in the present embodiment
Setting, the convex block 191 being also formed on electrode 19 in the gap between the end cap 17 for externally protruding out in both sides, at this point, first passage
251 are specifically interposed between the convex block 191 and inner cylinder body 8.And the structure design of convex block 191 by electrode 19 and thereon, with
And its cooperation between piston shell, the damp channel 25 being made of first passage 251 and second channel 252 is along its circulation side
To being rendered as folding type structure, and the crooked place of damp channel 25 is also specifically that right angle is bent.In addition, the present embodiment is having
When body designs, the width of first passage 251 and second channel 252 may be configured as 0.5mm-1.5mm, for example, its can be 0.8mm,
1mm, 1.2mm etc..
ER fluid mobility status of the piston 11 of the present embodiment when damper works also can be as shown in Figure 8, at this time
It is still in for stretching travel and is illustrated with 11 uplink of piston namely damper, the oil being located at 11 side of piston namely a
Liquid is entered by the intercommunicating pore 172 on a side end cap 17 in piston shell, subsequently into the second channel 252 of side.Then, oily
Liquid is entered by the second channel 252 of side in first passage 251, and after entering back into the second channel 252 of the other side, finally by
In the oiling chamber 14 of the entrance of intercommunicating pore 172 other side on another side end cap 17 namely at d.
At the same time, the fluid namely electric current flowed in the gap between piston shell namely end cap 17 and inner cylinder body 8
Becoming liquid can also enter in first passage 251.As a result, under external power supply power supply, piston shell and inner cylinder body 8 are as ground connection
End, and in the first passage 251 between electrode 19 and inner cylinder body 8 and the second channel between electrode 19 and piston shell
High voltage electric field is generated in 252.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.Work when 11 downlink of piston namely damper compression travel with it is above-mentioned
Similar, details are not described herein.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of reciprocating damper, it is characterised in that：Including：
Cylinder body, the cylinder body, which has, to be nested in together and relatively-stationary outer cylinder body (1) and inner cylinder body (8), and the cylinder body
One end open is arranged, and the other end is configured with the interconnecting piece being connect with external component；
One end of piston rod (4), the piston rod (4) is inserted by the open end of the cylinder body in the cylinder body, and in the cylinder
The open end of body is fixed with the sealing mechanism (7) between the cylinder body and the piston rod (4)；
Piston (11) is connected in the insertion end of the piston rod (4) and slides in the inner cylinder body (8), the inner cylinder body
(8) because of the oiling chamber (14) positioned at the piston (11) both sides that is separated to form of the piston (11) in, and in the piston
(11) damp channel (25) of oiling chamber (14) described in connection both sides is configured at；
Side air cavity (16), between the inner cylinder body (8) and the outer cylinder body (1), the side air cavity (16) is by elastic diaphragm
(13) it encloses and is configured to the inner cylinder body (8) or the outer cylinder body (1), and along the radial direction of the cylinder body, in the side air cavity
(16) it is formed with outside and is separated by the elastic diaphragm (13) and be connected to the oiling chamber (14) of the piston (11) side
Side oil pocket (15).
2. reciprocating damper according to claim 1, it is characterised in that：The side air cavity (16) is by the elastic diaphragm
(13) it encloses and is configured to the outer cylinder body (1)；And the elastic diaphragm (13) is by being located at the elastic diaphragm (13) two
It holds and is interposed in the abutting of the septum clip between the inner cylinder body (8) and the outer cylinder body (1) and be fixed on the outer cylinder body (1)
On, the side oil pocket (15) is connected by the through-hole (121) being configured on the septum clip of one end with the oiling chamber (14)
It is logical.
3. reciprocating damper according to claim 1 or 2, it is characterised in that：The piston (11) includes that socket joint is fixed
Piston shell on piston rod (4), and insulation are set to the electrode that can be electrically connected in the piston shell and with the external world
(19), the damp channel (25) is configured in the piston shell and is interposed in the electrode (19) and the piston shell
Between；Further include the hollow out by the damp channel (25) perforation to the inner cylinder body (8) being set on the piston shell,
And be equipped in the hollow out can because pressure-bearing, due to squeeze and be connected between the side inner wall of the hollow out and the inner cylinder body (8)
Elastomer (26).
4. reciprocating damper according to claim 3, it is characterised in that：The piston shell include it is positioned opposite and
Two end caps (17) being arranged along the axial spacing of the piston rod (4), are equipped with and the piston in two end caps (17)
Bar (4) socket joint connection mounting hole (171), and in be respectively formed on two end caps (17) for the damp channel (25) with
The intercommunicating pore (172) of oiling chamber (14) connection；The hollow out is made of the gap between two end caps (17), and two
Sandwiched between the end cap (17) to be fixed with insulating bushing (18), electrode (19) suit is fixed on the insulating bushing (18)
On.
5. reciprocating damper according to claim 4, it is characterised in that：The elastomer (26) is set on two ends
Cover the elastic seal ring in the gap between (17).
6. reciprocating damper according to claim 1 or 2, it is characterised in that：The piston (11) includes that socket joint is fixed
Piston shell on the piston rod (4), and insulation are set to the electrode that can be electrically connected in the piston shell and with the external world
(19), the damp channel (25) is configured at the piston shell, and the damp channel (25) have be interposed in the electricity
First passage (251) between pole (19) and the inner cylinder body (8), and concatenated with the first passage (251), be interposed in
Second channel (252) between the electrode (19) and the piston shell.
7. reciprocating damper according to claim 6, it is characterised in that：The piston shell include it is positioned opposite and
Two end caps (17) being arranged along the axial spacing of the piston rod (4), are equipped with and the piston in two end caps (17)
The mounting hole (171) of bar (4) socket joint connection, and supply the second channel (252) in being respectively formed on two end caps (17)
The intercommunicating pore (172) being connected to the oiling chamber (14)；It is sandwiched between two end caps (17) to be fixed with insulating bushing (18),
Electrode (19) suit is fixed on the insulating bushing (18), and is externally protruded out in described in two in being formed on the electrode (19)
Convex block (191) in gap between end cap (17), the first passage (251) be interposed in the convex block (191) with it is described interior
Between cylinder body (8).
8. reciprocating damper according to claim 1 or 2, it is characterised in that：The sealing mechanism (7) includes being sheathed on
On the piston rod (4) and the seal receptacle that is fixed in the cylinder body open end, and setting exists in the open end of the cylinder body
On the seal receptacle and the oil sealing (28) that is sheathed on the piston rod (4)；Further include being set in the seal receptacle, to constitute
At the oil sealing between the oiling chamber (14) one-way conduction fluid reflux unit.
9. reciprocating damper according to claim 8, it is characterised in that：The fluid reflux unit includes being formed in institute
The return flow line (35) being communicated at the oil sealing (28) between the oiling chamber (14) in seal receptacle is stated, and is located at institute
The unidirectional valve member (36) in return flow line (35) is stated, and the unidirectional valve member (36) is configured to that the oiling chamber can be undertaken in
(14) pressure in and block the return flow line (35).
10. reciprocating damper according to claim 9, it is characterised in that：The unidirectional valve member (36) seals for Y types
Circle；And in the oil-scraping ring (31) for being equipped with piston rod (4) setting described in ring in the seal receptacle.
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| CN201810542233.2A CN108571557B (en) | 2018-05-30 | 2018-05-30 | Reciprocating damper |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810542233.2A CN108571557B (en) | 2018-05-30 | 2018-05-30 | Reciprocating damper |
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| CN108571557B CN108571557B (en) | 2024-07-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2768474A1 (en) * | 2018-12-21 | 2020-06-22 | Auxiliares Ind | Small diameter cylindrical diaphragm assembly for hydraulic shock absorbers with sealing at both ends, used in self-closing furniture (Machine-translation by Google Translate, not legally binding) |
| CN115823171A (en) * | 2022-11-22 | 2023-03-21 | 重庆大学 | Long-life mechanical valve-free magnetorheological damper |
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| CN208281416U (en) * | 2018-05-30 | 2018-12-25 | 宁波麦维科技有限公司 | Reciprocating damper |
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| EP0149489A2 (en) * | 1984-01-17 | 1985-07-24 | AROS Hydraulik GmBH | Hydraulic vibration damper |
| US6352144B1 (en) * | 1996-11-21 | 2002-03-05 | Advanced Fluid Systems Limited | Flow-control valve and damper |
| US20020020593A1 (en) * | 1999-06-16 | 2002-02-21 | Niaura William S. | Externally guided damper |
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| ES2768474A1 (en) * | 2018-12-21 | 2020-06-22 | Auxiliares Ind | Small diameter cylindrical diaphragm assembly for hydraulic shock absorbers with sealing at both ends, used in self-closing furniture (Machine-translation by Google Translate, not legally binding) |
| CN115823171A (en) * | 2022-11-22 | 2023-03-21 | 重庆大学 | Long-life mechanical valve-free magnetorheological damper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108571557B (en) | 2024-07-02 |
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