CN106481723A - Adjustable damping suspension rod for rotary drum washing machine and the rotary drum washing machine with it - Google Patents
Adjustable damping suspension rod for rotary drum washing machine and the rotary drum washing machine with it Download PDFInfo
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- CN106481723A CN106481723A CN201510552396.5A CN201510552396A CN106481723A CN 106481723 A CN106481723 A CN 106481723A CN 201510552396 A CN201510552396 A CN 201510552396A CN 106481723 A CN106481723 A CN 106481723A
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- suspension rod
- washing machine
- rotary drum
- drum washing
- adjustable damping
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Abstract
The invention provides a kind of adjustable damping suspension rod for rotary drum washing machine and the rotary drum washing machine with it.This adjustable damping suspension rod includes:Cylinder body;Elongated suspension rod, it in axial direction runs through cylinder body, and elongated suspension rod in axial direction can move back and forth with respect to cylinder body;Piston, fixed cover is provided on the elongated suspension rod in cylinder body, and piston is provided with and can produce the coil in magnetic field and the fluid course axially through piston in energising, changes the mobility of magnetic flow liquid in fluid course with the size by changing electric current in coil;And top mounting seat, it is arranged on the top of elongated suspension rod, so that adjustable damping suspension rod to be hung on the flap seat of the cover top portion of rotary drum washing machine, wherein cylinder body upper end is formed with upwardly extending location division, matched with the cushion socket of the washing outer tube bottom perisporium with rotary drum washing machine, so that washing outer tube is hung under gravity on adjustable damping suspension rod.Adjustable damping suspension rod of the present invention is particularly well-suited to rotary drum washing machine.
Description
Technical field
The present invention relates to damping device, more particularly to a kind of adjustable damping suspension rod for rotary drum washing machine and tool
There is its rotary drum washing machine.
Background technology
It is known that washing machine is in the course of the work, due to unbalance loading and the centrifugal action of washing articles, keep away
Vibration unavoidably can be produced.The damping device that current rotary drum washing machine is general to be adopted be connect washing machine shell,
The adjustable damping suspension rod of washing outer tube, mainly passes through the up and down motion shape of the friction parts on adjustable damping suspension rod
Becoming sliding friction, producing frictional force thus playing cushioning effect.No matter the shortcoming of this structure is washings
How much, the frictional force obtaining almost constant it is impossible to realize change and the adjustment of damping.
Magnetic flow liquid is a kind of intellectual material of many uses, function admirable.When no magnetic field around, magnetic current
Become liquid and show good liquid fluidity;When around there is high-intensity magnetic field, magnetic flow liquid is then at short notice
Viscosity increases sharply, and shows the morphological character of solid;And this change is reversible, that is, work as surrounding
When returning to no under magnetic field state, magnetic flow liquid returns to the state of original liquid flowing.Due to it
There is such special nature, so all comprising magnetic flow liquid in many amortisseurs in prior art.
In prior art, the amortisseur based on magnetic flow liquid (abbreviation MR vibration damper), generally includes and contains
There are the cylinder body of magnetic flow liquid, the piston being arranged in cylinder body, and one end is fixedly connected with the piston, the other end
Extend to the piston rod outside cylinder body, wherein, setting coil and fluid course on piston, by changing coil
The size of middle electric current changes the mobility of magnetic flow liquid in fluid course, thus changing the size of damping.
MR vibration damper can play the effect of damping adjusting by changing the size of the electric current providing coil.
Therefore, it has very gratifying application prospect in cushion technique field.At present, existing washing machine producer will
MR vibration damper is applied to roller washing machine.
Content of the invention
For rotary drum washing machine, due to its own structure, its vibration source is generally in washing outer tube
Bottom, in order to simultaneously work as supporting and cushioning effect, amortisseur need to be obliquely installed, and its one end is arranged on impeller
The top of washing machine shell, its other end is arranged on the bottom (close to bottom) of its washing outer tube, therefore requires
The length of amortisseur is longer, and this kind of amortisseur generally has the form of suspension rod.
For the MR vibration damper with aforementioned structure, if applying it in rotary drum washing machine, need relatively
How to extend the length of its piston rod, in the form of making it have suspension rod.However, those skilled in the art are led to
Often think, if piston rod is oversize, after increasing magnetic field and make the viscosity of magnetic flow liquid become big, piston rod past
The resistance being subject to that moves again will become greatly, easily make piston rod that deflection deformation occurs, or even bend.Therefore,
The form that MR vibration damper is not made suspension rod by those skilled in the art is used in rotary drum washing machine, thus
Lead in prior art, still not be applied to the MR vibration damper of rotary drum washing machine.
Present inventor has creatively manufactured the MR vibration damper with Brace allocation, and invents
People finds can have when the MR vibration damper of Brace allocation is applied in rotary drum washing machine through many experiments
The more preferable damping effect than existing suspension rod antivibrator.And by rotary drum washing machine being washed with the load-bearing of outer tube and shaking
Width carry out research find, the MR vibration damper of Brace allocation when being applied in rotary drum washing machine, generally not
Need to apply larger magnetic field so that the viscosity of magnetic flow liquid becomes very big, thus not making piston rod in motion
Shi Fasheng bends.
However, inventors herein have recognized that, for the MR vibration damper of this kind of Brace allocation, when by its
When being arranged in rotary drum washing machine, after a longer time of use, the effect of damping can gradually be deteriorated.
Inventor is it has furthermore been found that this is due to when washing outer tube shuttle belt piston bar is along its axially-movable
When, due to, in whole MR vibration damper length, piston rod being carried out with spacing position less, particularly
The end of piston rod is connected with piston, so during piston rod drives piston rod to move back and forth, easily
Easy partially cylinder when making the direction of motion of piston rod deviate, and making its piston slide in cylinder body, makes piston
There is deflection deformation in bar, thus weakening damping effect.
In addition, MR vibration damper of the prior art is also sheathed generally outside cylinder body can be outer with respect to slide
Shell, not only complex structure, and it is easier to make work during piston rod drives piston rod to move back and forth
The direction of motion of stopper rod deviates, and easily inclined cylinder when making its piston slide in cylinder body, so that piston rod is sent out
Raw deflection deformation, thus weaken damping effect.
To sum up, in prior art, existing MR vibration damper is not particularly suited for rotary drum washing machine.
Thus, a purpose of first aspect present invention is in view of the foregoing defects the prior art has, provides
A kind of adjustable damping suspension rod based on magnetic flow liquid being applied to rotary drum washing machine.
One of first aspect present invention further objective is that to provide a kind of have preferable damping effect
Adjustable damping suspension rod.
First aspect present invention another further objective is that to prevent based on magnetic flow liquid can resistance trimming
There is deflection deformation, thus weakening damping effect in the elongated suspension rod in Buddhist nun's suspension rod.
One purpose of second aspect present invention is to provide for a kind of rotary drum washing machine of good damping effect.
According to the first aspect of the invention, there is provided a kind of adjustable damping suspension rod for rotary drum washing machine, including:
Cylinder body, defines the cavity for containing magnetic flow liquid in it;
Elongated suspension rod, described cylinder body the lower end via described cylinder body are inserted from the upper end of described cylinder body in its bottom
Outwards pass, and described elongated suspension rod in axial direction can move back and forth with respect to described cylinder body;
Piston, fixed cover is provided on the elongated suspension rod in described cavity, and can exist with described elongated suspension rod
In axial direction move back and forth in described cavity;Described piston is provided with the coil that can produce magnetic field in energising
And the fluid course axially through described piston, changed with the size by changing electric current in described coil
The mobility of magnetic flow liquid in described fluid course;And
Top mounting seat, it is arranged on the top of described elongated suspension rod, and described adjustable damping suspension rod is hung
On the flap seat of the cover top portion of described rotary drum washing machine,
Wherein said cylinder body upper end is formed with upwardly extending location division, with the washing with described rotary drum washing machine
The cushion socket of outer tube bottom perisporium matches, so that described washing outer tube is hung under gravity in institute
State on adjustable damping suspension rod.
Alternatively, the bottom of described elongated suspension rod to described piston distance be more than described cavity axial length.
Alternatively, described adjustable damping suspension rod also includes:
Gooseneck bracket, it is fixedly arranged on the bottom of described elongated suspension rod;With
Spring, it is set on described elongated suspension rod and is arranged between described gooseneck bracket and described cylinder body lower end.
Alternatively, described cylinder body includes jacket casing and is located at described jacket casing upper and lower ends in order to the upper end being sealed against
Lid and bottom end cover, described location division is formed on described upper end cover;
The center of described upper end cover and described bottom end cover is respectively provided with through hole, with allow described elongated suspension rod pass through and
In axial direction can move back and forth with respect to described upper end cover and described bottom end cover.
Alternatively, described jacket casing has the turn-up portion of the formation that extends radially outwardly respectively from its upper and lower edges at two ends;
Described upper end cover and described bottom end cover include baseplate part and extend towards described jacket casing from described baseplate part
Lobe, the lobe of described upper end cover and described bottom end cover stretches into institute from the upper and lower ends of described jacket casing respectively
State in jacket casing, and the periphery of the baseplate part of described upper end cover and described bottom end cover respectively upper and lower with described jacket casing two
The turn-up portion at end abuts;
Wherein said location division extends upward from the baseplate part of described upper end cover.
Alternatively, it is respectively provided between described elongated suspension rod and described jacket casing and described upper end cover and described bottom end cover
There is sealing ring, to ensure described cylinder body sealing.
Alternatively, described piston outer periphery is arranged with O-ring, in case stop bit is magnetorheological in described piston side
Liquid flows to opposite side via described piston outer periphery.
Alternatively, described piston is made up of ferromagnetic material, described coil wound on the inside of described piston, and
Described fluid course is arranged on the piston outside described coil.
Alternatively, it is provided with for arranging leading to described coil power supply in described elongated suspension rod and described piston
The wire casing of line, described wire casing extends to the top of described elongated suspension rod from described piston.
According to the second aspect of the invention, there is provided a kind of rotary drum washing machine, including:
Multiple as front arbitrary described adjustable damping suspension rod for rotary drum washing machine;
Shell, its top is distributed with the flap seat of multiple top mounting seat cooperations with described adjustable damping suspension rod;
And
Washing outer tube, is arranged on described inside the shell, its underpart perisporium is distributed with multiple and described adjustable damping and hangs
The cushion socket of the location division cooperation of bar, wherein
The top mounting seat of multiple described adjustable damping suspension rods and location division are hung with the multiple of described shell respectively
Seat is connected with multiple cushion sockets of described washing outer tube, and described washing outer tube is hung on described inside the shell.
The adjustable damping hanging rod structure of the present invention is simple.When coil no power, its surrounding will not produce magnetic
, so magnetic flow liquid is just presented in fluidised form;When the coil is energized, its surrounding is full of magnetic field,
So the mobility of magnetic flow liquid is deteriorated.The present invention can be suitable according to the rotating speed isocline circle input of washing outer tube
When the form to reach required magnetic flow liquid for the electric current, to control the damping of adjustable damping suspension rod.
Further, the present invention is used for the adjustable damping suspension rod of rotary drum washing machine, due to the bottom of its elongated suspension rod
End outwards passes from the upper end of cylinder body insertion cylinder body and via the lower end of cylinder body, can by the upper and lower ends of cylinder body relatively
Well elongated suspension rod is carried out spacing.When elongated suspension rod band piston is slided in cylinder body, elongated suspension rod
The direction of motion is not susceptible to deviate, thus being not likely to produce deflection deformation, piston is not easy to inclined cylinder simultaneously.
Therefore, the invention can ensure that adjustable damping suspension rod has preferable damping effect, there is longer use simultaneously
In the life-span, it is particularly well-suited to rotary drum washing machine.
Further, the present invention arranges turn-up portion in jacket casing upper and lower ends, and will be used for sealing sleeve upper and lower two
The upper end cover at end and bottom end cover are set to the lobe that stretches out includings baseplate part and from baseplate part, its projection
Portion stretches in jacket casing from the upper and lower ends of jacket casing respectively, and the periphery of baseplate part respectively with jacket casing upper and lower ends
Turn-up portion abuts.Arranged by such, after adjustable damping hanger erection to rotary drum washing machine, due to upper end
Cover the downward active force that by cushion socket, it can be applied always, and bottom end cover is constantly subjected to spring and it is applied
Plus active force upwards, thus ensure that cylinder body seal.Prevent piston during moving up and down on
The impact of bottom end cover leads to cylinder body sealing property to be affected.
Rotary drum washing machine of the present invention, can be in rotary drum washing machine in unequally loaded due to arranging adjustable damping suspension rod
In the case of, provide different viscous damping power, thus can achieve that rotary drum washing machine is low when heavy load dehydration starts
The vibration of rotating speed resonance region, can decay rapidly in the case of big damping;And gently load in the high speed dewatering stage
When, in the case of little damping, the vibration of washing outer tube is produced and effectively isolate, be unlikely to make vibration be delivered to
Coming on rotary drum washing machine shell, thus reducing the amplitude of shell, reaching guarantee rotary drum washing machine in various loads
Under whole dehydration even running.
According to the detailed description to the specific embodiment of the invention below in conjunction with accompanying drawing, those skilled in the art will
More understand above-mentioned and other purposes, the advantages and features of the present invention.
Brief description
Describe in detail by way of example, and not by way of limitation with reference to the accompanying drawings hereinafter the present invention some are concrete
Embodiment.In accompanying drawing, identical reference denotes same or similar part or part.Art technology
Personnel are it should be understood that what these accompanying drawings were not necessarily drawn to scale.In accompanying drawing:
Fig. 1 is the perspective schematic view of adjustable damping suspension rod according to an embodiment of the invention;
Fig. 2 is the schematic partial enlarged view of adjustable damping suspension rod shown in Fig. 1;
Fig. 3 is the perspective schematic view of rotary drum washing machine according to an embodiment of the invention.
Specific embodiment
Fig. 1 is the perspective schematic view of adjustable damping suspension rod 10 according to an embodiment of the invention.As Fig. 1
Shown, adjustable damping suspension rod 10 includes elongated suspension rod 1, cylinder body 2, piston 3 and top mounting seat 6.
Top mounting seat 6 is arranged on the top of elongated suspension rod 1, adjustable damping suspension rod 10 is hung and washes in impeller
On the flap seat of the cover top portion of clothing machine.The cavity for containing magnetic flow liquid is defined in cylinder body 2.Cylinder body 2
Upper end is formed with upwardly extending location division 223, with washing the subtracting of outer tube bottom perisporium with rotary drum washing machine
Shake seat matches, so that washing outer tube is hung under gravity on adjustable damping suspension rod 10.
Top mounting seat 6 can be set in the top of elongated suspension rod 1.The structure of top mounting seat 6 can with existing
The upper ball base of technology middle hanger is similar to, and the structure of location division 223 can be with the lower ball base class of prior art middle hanger
Seemingly.Through hole with diameter greater than elongated suspension rod 1 diameter, elongated suspension rod are wherein had on flap seat and cushion socket
1 passes through flap seat and cushion socket, and makes top mounting seat 6 and location division 223 be located at flap seat and damping respectively
The outside of seat, thus fit with flap seat and cushion socket respectively under the action of gravity of washing outer tube.
The bottom of elongated suspension rod 1 is outwards worn from the upper end of cylinder body 2 insertion cylinder body 2 and via the lower end of cylinder body 2
Go out (i.e. elongated suspension rod 1 in axial direction runs through cylinder body 2), and elongated suspension rod 1 can be with respect to cylinder body 2 edge
Axial direction moves back and forth.Piston 3 fixed cover is provided on the elongated suspension rod 1 in cavity, and can be with length
Shape suspension rod 1 in axial direction moves back and forth in cavity.
Piston 3 is provided with and can produce the coil 32 in magnetic field and the liquid axially through piston 3 in energising
Circulation road 31, changes the stream of magnetic flow liquid in fluid course 31 with the size by changing electric current in coil 32
Dynamic property.Piston 3 can be made up of ferromagnetic material, and coil 32 is wound on the inside of piston 3.Can be in piston 3
So that coil 32 is wound on the inside of piston 3, fluid course 31 may be provided at outside ring cavity internal setting ring cavity
Portion.Fluid course 31 section vertically can be C-shaped.
When coil 32 is energized, magnetic field can produced about, in fluid course 31, magnetic flow liquid is subject to magnetic
After field action, its viscosity can change, so that damping changes.
Magnetic flow liquid can be full of, when washing outer tube vibration, elongated suspension rod 1 can carry piston 3 in cylinder body 2
In axial direction move back and forth with respect to cylinder body 2.Specifically, when piston 3 is bottom-up with elongated suspension rod 1
During motion, because piston 3 superjacent air space constantly reduces, the magnetic flow liquid of top will be via fluid course 31
Flow to below piston 3.Piston 3 periphery is arranged with O-ring 33, in case stop bit is in the magnetic of piston 3 side
Rheology liquid flows to opposite side via piston 3 periphery.That is, piston 3 is with the reciprocating mistake of elongated suspension rod 1
Cheng Zhong, magnetic flow liquid only can flow to opposite side via fluid course 31 from the side of piston 3.Due to elongated
Suspension rod 1 runs through cylinder body 2, thus elongated suspension rod 1 is during moving back and forth, the effective appearance in cylinder body 2
Amass and will not change.
The bottom of elongated suspension rod 1 to piston 3 distance be more than cavity axial length, in order to avoid piston 3 is with length
When shape suspension rod 1 moves up to cylinder body 2 upper end, elongated suspension rod 1 bottom enters and leads to cylinder body inside cylinder body 2
2 blow-by.
It is provided with the wire casing 34 of the wire to coil 32 power supply for arrangement in elongated suspension rod 1 and piston 3,
Wire casing 34 extends to the top of elongated suspension rod 1 from piston 3.Wire can be via top mounting seat 6 and power supply
Connect.For the adjustable damping suspension rod 10 of the present invention, when coil 32 no power, its surrounding will not produce
Magnetisation field, so magnetic flow liquid is just presented in fluidised form;When coil 32 is energized, its surrounding fills
Full field, so the mobility of magnetic flow liquid is deteriorated.Specifically, when electric current becomes big, the magnetic of coil 32
Property becomes greatly, and the mobility of magnetic flow liquid reduces, and damping force increases;When electric current becomes hour, the magnetic of coil 32
Property diminish, the mobility of magnetic flow liquid strengthens, and damping force reduces.Can according to rotating speed etc. of washing outer tube to
Coil 32 inputs suitable electric current to reach the form of required magnetic flow liquid, thus controlling adjustable damping to hang
The damping of bar 10.
Additionally, the present invention is used for the adjustable damping suspension rod 10 of rotary drum washing machine, due to the bottom of its elongated suspension rod 1
End outwards passes from the upper end of cylinder body 2 insertion cylinder body 2 and via the lower end of cylinder body 2, can be upper by cylinder body 2
Lower two ends preferably carry out spacing to elongated suspension rod 1.Carry piston 3 sliding in cylinder body 2 in elongated suspension rod 1
When dynamic, the direction of motion of elongated suspension rod 1 is not susceptible to deviate, thus being not likely to produce deflection deformation, lives simultaneously
Plug 3 is not easy to inclined cylinder.Therefore, the invention can ensure that adjustable damping suspension rod 10 has preferable damping
Effect, has longer service life simultaneously, is particularly well-suited to rotary drum washing machine.
In certain embodiments, cylinder body 2 includes jacket casing 21 and is located at jacket casing 21 upper and lower ends in order to it is close
The upper end cover 22 of envelope and bottom end cover 23, location division 223 is formed on upper end cover 22.Upper end cover 22 and under
The center of end cap 23 is respectively provided with through hole, with allow elongated suspension rod 1 to pass through and can with respect to upper end cover 22 and under
End cap 23 in axial direction moves back and forth.Elongated suspension rod 1 and jacket casing 21 and upper end cover 22 and bottom end cover 23
Between be provided with sealing ring 7, to ensure that cylinder body 2 seals.
In a further embodiment, jacket casing 21 can have and radially outward prolong from its upper and lower edges at two ends respectively
Stretch the turn-up portion 211 of formation.Upper end cover 22 and bottom end cover 23 include baseplate part 221,231 and respectively from base
The lobe 222,232 that plate portion 221,231 extends towards jacket casing 21, upper end cover 22 and bottom end cover 23 convex
Play portion 222,232 to stretch in jacket casing 21 from the upper and lower ends of jacket casing 21 respectively, and upper end cover 22 and lower end
The periphery of the baseplate part 221,231 of lid 23 is abutted with the turn-up portion 211 of jacket casing 21 upper and lower ends respectively;
Wherein location division 223 extends upward from the baseplate part 221 of upper end cover 22.
In a further embodiment, adjustable damping suspension rod 10 also includes gooseneck bracket 5 and spring 4, gooseneck bracket
5 bottoms being fixedly arranged on elongated suspension rod 1;Spring 4 be set on elongated suspension rod 1 and be arranged at gooseneck bracket 5 with
Between cylinder body 2 lower end.Gooseneck bracket 5 can be set in the bottom of elongated suspension rod 1, also solderable in elongated suspension rod
1 bottom.When elongated suspension rod 1 moves in cylinder body 2 upwards, spring 4 shortens;When elongated suspension rod 1
When moving downward in cylinder body 2, spring 4 extends.
From the above description of the structure to adjustable damping suspension rod 10 of the present invention, the adjustable damping of the present invention hangs
Bar 10 is particularly suitable for applications in rotary drum washing machine, by the washing outer tube of rotary drum washing machine with suspension status
It is supported on its inside the shell.Thus, present invention also offers a kind of rotary drum washing machine.
Fig. 3 is the schematic diagram of rotary drum washing machine 100 according to an embodiment of the invention.As Fig. 3
Shown, rotary drum washing machine 100 according to embodiments of the present invention include multiple as front any embodiment can resistance trimming
Buddhist nun's suspension rod 10, shell 110, inner barrel of washing 130 and washing outer tube 120.Inner barrel of washing 130 is rotatable
Be arranged at washing outer tube 120 in.The top of shell 110 is distributed with multiple and adjustable damping suspension rod 10
The flap seat 111 of top mounting seat 6 cooperation.Washing outer tube 120 is arranged in shell 110, its underpart perisporium
The cushion socket 121 of multiple location divisions 223 with adjustable damping suspension rod 10 cooperation, multiple adjustable dampings are distributed with
The top mounting seat 6 of suspension rod 10 and location division 223 multiple flap seats 111 and the washing with shell 110 respectively
Multiple cushion sockets 121 of outer tube 120 are connected, and washing outer tube 120 is hung in shell 110.
In a preferred embodiment, the washing drum that inner barrel of washing 130 is formed with washing outer tube 120 relies on 4
Individual adjustable damping suspension rod 10 hangs up, and neighboring tunable damps the angle of suspension rod 10 projection in the horizontal direction
For 90 degree.I.e. 4 adjustable damping suspension rods 10, along washing outer tube 120 even circumferential radial distribution, make 4
Adjustable damping suspension rod 10 uniform stressed.
Motor 150 is arranged on the lower section of washing outer tube 120.The drive shaft of motor 150 is passed through to wash outer tube 120
It is connected with inner barrel of washing 130, and inner barrel of washing 130 can be driven to rotate.Adjustable damping suspension rod 10 can basis
The tach signal of motor 150 feedback controls the size of current that coil 32 is provided, so that it produces coupling
Damping force.Thus, use the power on coil 32 magnetic strong and weak change change magnetic flow liquid mobility thus
Play the purpose of real-time adjustment damping.
So far, although those skilled in the art will appreciate that detailed herein illustrate and describe the present invention's
Multiple exemplary embodiments, but, without departing from the spirit and scope of the present invention, still can be according to this
Disclosure of invention directly determines or derives other variations or modifications of many meeting the principle of the invention.Cause
This, the scope of the present invention is it is understood that and regard as covering other variations or modifications all these.
Claims (10)
1. a kind of adjustable damping suspension rod for rotary drum washing machine, including:
Cylinder body, defines the cavity for containing magnetic flow liquid in it;
Elongated suspension rod, described cylinder body the lower end via described cylinder body are inserted from the upper end of described cylinder body in its bottom
Outwards pass, and described elongated suspension rod in axial direction can move back and forth with respect to described cylinder body;
Piston, fixed cover is provided on the elongated suspension rod in described cavity, and can exist with described elongated suspension rod
In axial direction move back and forth in described cavity;Described piston is provided with the coil that can produce magnetic field in energising
And the fluid course axially through described piston, changed with the size by changing electric current in described coil
The mobility of magnetic flow liquid in described fluid course;And
Top mounting seat, it is arranged on the top of described elongated suspension rod, and described adjustable damping suspension rod is hung
On the flap seat of the cover top portion of described rotary drum washing machine,
Wherein said cylinder body upper end is formed with upwardly extending location division, with the washing with described rotary drum washing machine
The cushion socket of outer tube bottom perisporium matches, so that described washing outer tube is hung under gravity in institute
State on adjustable damping suspension rod.
2. the adjustable damping suspension rod for rotary drum washing machine according to claim 1, wherein
The bottom of described elongated suspension rod to described piston distance be more than described cavity axial length.
3. the adjustable damping suspension rod for rotary drum washing machine according to claim 1, also includes:
Gooseneck bracket, it is fixedly arranged on the bottom of described elongated suspension rod;With
Spring, it is set on described elongated suspension rod and is arranged between described gooseneck bracket and described cylinder body lower end.
4. the adjustable damping suspension rod for rotary drum washing machine according to claim 1, wherein
Described cylinder body include jacket casing and be located at described jacket casing upper and lower ends in order to the upper end cover that is sealed against and under
End cap, described location division is formed on described upper end cover;
The center of described upper end cover and described bottom end cover is respectively provided with through hole, with allow described elongated suspension rod pass through and
In axial direction can move back and forth with respect to described upper end cover and described bottom end cover.
5. the adjustable damping suspension rod for rotary drum washing machine according to claim 4, wherein
Described jacket casing has the turn-up portion of the formation that extends radially outwardly respectively from its upper and lower edges at two ends;
Described upper end cover and described bottom end cover include baseplate part and extend towards described jacket casing from described baseplate part
Lobe, the lobe of described upper end cover and described bottom end cover stretches into institute from the upper and lower ends of described jacket casing respectively
State in jacket casing, and the periphery of the baseplate part of described upper end cover and described bottom end cover respectively upper and lower with described jacket casing two
The turn-up portion at end abuts;
Wherein said location division extends upward from the baseplate part of described upper end cover.
6. the adjustable damping suspension rod for rotary drum washing machine according to claim 4, wherein
It is provided with sealing between described elongated suspension rod and described jacket casing and described upper end cover and described bottom end cover
Circle, to ensure described cylinder body sealing.
7. the adjustable damping suspension rod for rotary drum washing machine according to claim 1, wherein
Described piston outer periphery is arranged with O-ring, in case stop bit in described piston side magnetic flow liquid via institute
State piston outer periphery and flow to opposite side.
8. the adjustable damping suspension rod for rotary drum washing machine according to claim 1, wherein
Described piston is made up of ferromagnetic material, and described coil is wound on the inside of described piston, and described liquor stream
Passage is arranged on the piston outside described coil.
9. the adjustable damping suspension rod for rotary drum washing machine according to claim 1, wherein
It is provided with the line of the wire to described coil power supply for arrangement in described elongated suspension rod and described piston
Groove, described wire casing extends to the top of described elongated suspension rod from described piston.
10. a kind of rotary drum washing machine, including:
Multiple adjustable damping suspension rods being used for rotary drum washing machine as claimed in any one of claims 1-9 wherein;
Shell, its top is distributed with the flap seat of multiple top mounting seat cooperations with described adjustable damping suspension rod;
And
Washing outer tube, is arranged on described inside the shell, its underpart perisporium is distributed with multiple and described adjustable damping and hangs
The cushion socket of the location division cooperation of bar, wherein
The top mounting seat of multiple described adjustable damping suspension rods and location division are hung with the multiple of described shell respectively
Seat is connected with multiple cushion sockets of described washing outer tube, and described washing outer tube is hung on described inside the shell.
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Cited By (4)
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CN108583382A (en) * | 2018-03-09 | 2018-09-28 | 合肥工业大学 | A kind of semi-active suspension formula Lightningproof damping chair |
WO2018177102A1 (en) * | 2017-03-27 | 2018-10-04 | 青岛海尔洗衣机有限公司 | Vibration damper and laundry machine comprising same |
CN108662071A (en) * | 2017-03-27 | 2018-10-16 | 青岛海尔洗衣机有限公司 | Shock mitigation system and washing machine including the shock mitigation system |
CN109307036A (en) * | 2017-07-27 | 2019-02-05 | 青岛海尔滚筒洗衣机有限公司 | Electromagnetic shock absorber and its control method and washing machine including the electromagnetic shock absorber |
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