CN109957920A - Damper and device for clothing processing including the damper - Google Patents
Damper and device for clothing processing including the damper Download PDFInfo
- Publication number
- CN109957920A CN109957920A CN201711435194.8A CN201711435194A CN109957920A CN 109957920 A CN109957920 A CN 109957920A CN 201711435194 A CN201711435194 A CN 201711435194A CN 109957920 A CN109957920 A CN 109957920A
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- Prior art keywords
- chamber
- damper
- plunger
- liquid capsule
- damping
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Links
- 238000012545 processing Methods 0.000 title claims description 10
- 238000013016 damping Methods 0.000 claims abstract description 97
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 238000003780 insertion Methods 0.000 claims abstract description 6
- 230000037431 insertion Effects 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 65
- 239000002775 capsule Substances 0.000 claims description 62
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 9
- 238000005406 washing Methods 0.000 abstract description 44
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000001629 suppression Effects 0.000 abstract description 4
- 239000010720 hydraulic oil Substances 0.000 description 22
- 230000033001 locomotion Effects 0.000 description 11
- 238000007906 compression Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 230000006835 compression Effects 0.000 description 8
- 210000000078 claw Anatomy 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
- D06F37/22—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
The present invention relates to washing machine technology fields, and in particular to a kind of damper and the washing machine including the damper.Present invention seek to address that the problems such as damping force of damper in the prior art is immutable, effectiveness in vibration suppression is poor.For this purpose, damper of the invention includes: that the damper further includes the throttling element being set in the first chamber, the throttling element includes the pipe structure of second chamber described in partial insertion, several first damping holes are provided on the tube wall of the pipe structure, sealing structure is provided between the outer wall of the pipe structure and the inner wall of the plunger, a part in several described first damping holes is in the sliding of the plunger opens/closes state, to make the first chamber and the second chamber communicate with each other by the first damping hole in the open state.The damping force that damper of the invention generates can be changed at any time and stability is high.
Description
Technical field
The present invention relates to clothing processing technology fields, and in particular to a kind of damper and the clothing processing including the damper
Device.
Background technique
Washing machine is a kind of clean type electric appliance that clothing is washed using electric energy, with the quickening pace of modern life and people
To the raising that life comfort level requires, washing machine has become one of essential household electrical appliance in people's daily life.But
It is that washing machine can generate apparent vibration and noise in the courses of work such as washing and dehydration, influences user's body to a certain extent
It tests.
It is open in order to solve the problems, such as that washing machine generates apparent vibration and noise in the courses of work such as washing and dehydration
Number a kind of " damper and washing machine, dryer " is disclosed for the application for a patent for invention of CN105986407A.Wherein, damper packet
Sleeve and the first plunger open at one end are included, one end of the first plunger is fixing end, and the other end is inserted into from the opening of sleeve to be covered
Cylinder, and can be slided along sleeve, the friction plate with the first plunger frictional fit is provided between the first plunger and sleeve；It is set on sleeve
Flexible part and be connected with elastic component and can relative sleeve Frictional Slipping the second Frictional Slipping device, and when the first plunger phase
After moving past predetermined position to sleeve, the first plunger and the second Frictional Slipping device abut against simultaneously compression elastic piece.
The damper mainly passes through the first plunger and carries out friction generation in reciprocatory movement with friction plate in sleeve
Frictional force and the frictional force for pushing the second Frictional Slipping device compression elastic piece to generate after the first plunger is more than predetermined position
And elastic force, realize the purpose for reducing vibration of washing machine.But when the first plunger moves back and forth in sleeve, only
When one plunger relative sleeve does compression movement and is more than predetermined position, frictional force and elastic component that the second Frictional Slipping device generates
The elastic force of generation can just intervene, and when being less than predetermined position and the first plunger relative sleeve does extensional motion, it generates
Frictional force be constant power, it is unrelated with the amplitude of washing machine.Therefore, the damping force for being used to reduce vibration which generates
It cannot all be adjusted at any time according to the increase of first piston relative sleeve movement travel, effectiveness in vibration suppression needs further to be changed
It is kind.In addition, the damper of this setup is after used a period of time, frictional force can be slided due to friction plate and the second friction
It moves the abrasion of device and reduces, and then damper gradually fails, cause the noise of washing machine and vibration increasing, and then influence
Usage experience.
Correspondingly, this field needs a kind of new damper to solve the above problems.
Summary of the invention
It is worked in washing and dehydration etc. in order to solve existing damper in order to solve the above problem in the prior art
The problem of causing damper to be easy failure due to abrasion of effectiveness in vibration suppression difference and drag ring etc. in journey, the present invention provides
A kind of damper, the damper include: sleeve, and the sleeve has first chamber；Plunger, the plunger have second chamber,
The plunger is slidably inserted into the first chamber；Part is flowed, the throttling element includes second described in partial insertion
The pipe structure of chamber, is provided with several the first damping holes on the tube wall of the pipe structure, the outer wall of the pipe structure and described
Sealing structure is provided between the inner wall of plunger, at sliding of a part with the plunger in several described first damping holes
In opening/closing state, to make the first chamber and the second chamber by the first damping hole in the open state
It communicates with each other.
In the optimal technical scheme of above-mentioned damper, the damper further includes liquid capsule, and the liquid capsule is set to described
In first chamber, the open end of the liquid capsule is fixedly connected with the plunger, wherein the inner cavity of the liquid capsule and/or described
Damper fluid is filled in two chambers, the throttling element is set in the liquid capsule.
In the optimal technical scheme of above-mentioned damper, the sealing structure includes: seal groove, is set to the pipe knot
The inner wall of the outer wall of structure or the plunger and the width axially along the second chamber with setting；Sealing ring, holding
In in the seal groove.
In the optimal technical scheme of above-mentioned damper, the seal groove is set to the outer wall of the pipe structure, and institute
Seal groove is stated to be arranged to be in the second chamber in the whole process that the relatively described sleeve of the plunger reciprocatingly slides.
In the optimal technical scheme of above-mentioned damper, width and sealing of the sealing ring along the second chamber axial direction
Slot is consistent.
In the optimal technical scheme of above-mentioned damper, the seal groove is described along the width of the second chamber axial direction
The 1/20-1/3 of second chamber axial overall length.
In the optimal technical scheme of above-mentioned damper, the throttling element further includes pedestal, and the pedestal is set to described
The one end of liquid capsule far from the plunger is so that the liquid capsule to be placed between the sleeve and the pedestal.
In the optimal technical scheme of above-mentioned damper, the pipe structure has been disposed radially capping, sets in the capping
At least one second damping hole, the first chamber and the second chamber are equipped with by second damping hole and in beating
First damping hole of open state communicates with each other.
The present invention also provides a kind of device for clothing processing, which includes described in any of the above-described scheme
Damper.If device for clothing processing is roller washing machine, roller washing machine includes shell and the roller that is set in shell, roller
In the housing by the support of multiple dampers, at least one of damper is damper described in above-mentioned any scheme.
It will be appreciated to those of skill in the art that in the preferred technical solution of the present invention, damper includes having the
The sleeve of one chamber and plunger equipped with second chamber, plunger are slidably inserted into first chamber；First chamber
In be provided with liquid capsule, the open end of liquid capsule is fixedly connected with plunger by pressure ring, is filled in the inner cavity of liquid capsule and/or second chamber
There is damper fluid, throttling element is additionally provided in liquid capsule, throttling element includes bottom plate and pipe structure, a part insertion second of pipe structure
Chamber.Pipe structure is equipped with several first damping holes, liquid capsule and second chamber by the first damping hole in the open state
It communicates with each other.By the setting of liquid capsule and throttling element, the variable damping effect of damper is realized in a hydrodynamic manner.I.e. in this hair
For bright damper when being used for clothes treatment device (such as washing machine), the damping force that plunger is subject to all is variable at any time
, and damper can be according to the vibration frequency of washing machine automatically by damping force to the trend adjustment for optimizing damping property, i.e.,
It is formed and offsets the more matched damping force of vibration, to reduce the vibration of washing machine, reduce washing machine since vibration generates
Noise.And it is provided with sealing structure between the outer wall of pipe structure and the inner wall of plunger and sealing structure is along the second cavity axis
To with certain width, sealing performance of such sealing structure between the inner wall of the outer wall and plunger that guarantee pipe structure
Under the premise of increase service life period of sealing structure.
Detailed description of the invention
With reference to the accompanying drawings and in conjunction with roller washing machine to describe damper of the invention and including the clothing of the damper
Processing unit.In attached drawing:
Fig. 1 is the schematic view of the mounting position of the damper for roller washing machine of an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the damper for roller washing machine of an embodiment of the present invention；
Fig. 3 is the schematic cross-sectional view of the damper for roller washing machine of an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the sealing structure of the damper for roller washing machine of an embodiment of the present invention；
And
Fig. 5 is enlarged diagram of the Fig. 3 at local A.
Reference signs list:
1, damper；11, sleeve；111, the first fixed part；112, first chamber；113, bloop；114, reinforcing rib；
12, plunger；121, the second fixed part；122, second chamber；13, throttling element；131, pedestal；132, pipe structure；1321, the first resistance
Buddhist nun hole；13231, seal groove；13232, sealing ring；134, it covers；1341, the second damping hole；14, liquid capsule；161, first annular
Boss；163, pressure ring；164, first annular groove；165, second annular groove；171, clip；172, claw；173, first is solid
Determine hole；174, the second fixation hole；2, shell；3, roller；4, hydraulic oil.
Specific embodiment
The preferred embodiment of the present invention described with reference to the accompanying drawings.It will be apparent to a skilled person that this
A little embodiments are used only for explaining technical principle of the invention, it is not intended that limit the scope of the invention.For example, although
It is to be described in conjunction with damper fluid is hydraulic oil in specification, still, the present invention obviously can having using other forms
The damper fluid of certain viscosity becomes as long as the damper fluid can be realized by flowing of the damping hole between plunger and liquid capsule
Damping and damper fluid itself will not cause corrosion to plunger and liquid capsule.In addition, damper fluid can be such as resistance
Liquid including Buddhist nun's liquid etc., be also possible to when being extruded just movement, with damping grease etc. existing for sticky solid shape.
It should be noted that in the description of the present invention, term " center ", "upper", "lower", "left", "right", "vertical",
The direction of the instructions such as "horizontal", "inner", "outside" or the term of positional relationship are direction based on the figure or positional relationship, this
It is intended merely to facilitate description, rather than indication or suggestion described device or element must have a particular orientation, with specific
Orientation construction and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second ", " third " are only used
In description purpose, it is not understood to indicate or imply relative importance.
In addition it is also necessary to explanation, in the description of the present invention unless specifically defined or limited otherwise, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.To those skilled in the art, it can understand that above-mentioned term exists as the case may be
Concrete meaning in the present invention.
Show with reference first to the installation site that Fig. 1, Fig. 1 are the dampers for roller washing machine of an embodiment of the present invention
It is intended to.As shown in Figure 1, roller washing machine mainly includes shell 2 and the roller being set in shell 23, roller 3 includes outer cylinder
And the inner cylinder that can be rotated relative to outer cylinder.There are two dampers 1 for setting between the lower section of outer cylinder and the bottom inside of shell 2
To reduce the vibration and noise that inner cylinder generates during rotation.Referring in particular to Fig. 1, one end of damper 1 is fixed in shell
The other end of the bottom inside of body 2, damper 1 is fixed on the bottom of outer cylinder, when roller 3 vibrates during the work time,
Damper 1 can support roller 3 and consume the vibrational energy of the generation of roller 3.Particularly, damper of the invention can basis
The amplitude adjust automatically damping force for the vibration that washing machine generates, so that damper generation be made to match with different degrees of vibration
Damping force, and then the vibrational energy for washing machine of effectively decaying, finally reduce the vibration of roller washing machine and reduce with vibration
The raw noise of movable property.It is understood that the concrete form and setting quantity of damper are not unalterable, such as can be set
There are three, four or more dampers, can be with a part for damper 1 of the invention in these dampers, another portion
It is divided into the damper of other forms.
It is the structure of the damper for roller washing machine of an embodiment of the present invention referring next to Fig. 2 and Fig. 3, Fig. 2
Schematic diagram, Fig. 3 are the schematic cross-sectional views of the damper for roller washing machine of an embodiment of the present invention.Such as Fig. 2 and Fig. 3 institute
Show and according to the orientation in Fig. 3, damper 1 mainly including sleeve 11, be set to the first fixed part 111, the column of 11 left end of sleeve
Plug 12 and the second fixed part 121 for being set to 12 right end of plunger, the first fixed part 111 are used to be connected to the roller 3 of washing machine
Bottom, the second fixed part 121 be used for be connected to washing machine shell 2 bottom inside.Wherein, plunger 12 is from the right side of sleeve
End insertion sleeve 11 can simultaneously be moved back and forth along sleeve.
Referring in particular to Fig. 3 and according to the orientation in Fig. 3, sleeve 11 has the first chamber 112 of opening to the right, in plunger 12
It is provided with the second chamber 122 of opening to the left, the left end of plunger 12 can be slidably inserted into from the right end of sleeve 11
Into first chamber 112.Preferably, the outer wall of plunger 12 and the inner wall of sleeve 11 are slideably tightly engaged into, in case plunger exists
It shakes in sliding process in first chamber 112.It is understood that can also be by (first, second) fixed part and laundry
The link position of machine is exchanged, i.e., the first fixed part 111 is connected to the bottom inside of the shell 2 of washing machine, second is consolidated
Determine the bottom that portion 121 is connected to the roller 3 of washing machine.It is provided with liquid capsule 14 in first chamber 112 and liquid capsule is fixed on second
The left end of chamber, is provided with throttling element 13 in liquid capsule 14 and throttling element is fixed on the left end of first chamber.Preferably,
The left end of closed end, that is, liquid capsule 14 of liquid capsule 14 be resisted against the left end of the first chamber 112 of sleeve 11 and preferably with set
Cylinder 11 is fixedly connected, and the right end of open end, that is, liquid capsule 14 of liquid capsule 14 is hermetically fixedly connected with the left end of plunger 12.
Referring still to Fig. 3, throttling element 13 mainly includes the pedestal 131 for the disk-like structure being adapted with the inner wall of first chamber
And be set to base right side and with pedestal 131 is integrally formed, the inner wall of outer diameter and second chamber matches pipe structure
132, pedestal 131 is fixed on the left end of first chamber, i.e. the closed end of liquid capsule 14 is held on the left of the inner wall of the first cavity
With the left side of pedestal 13, some insertion second chamber 122 of the right side of pipe structure 132, to make plunger correspond to the first chamber
The part of room is reciprocating relative to sleeve in a manner of sliding between the inner wall of sleeve and the outer wall of pipe structure.Pipe structure
Several first damping holes 1321 as variable damping hole are provided on 132, the right-hand end of pipe structure 132 is provided with capping
134, the mode that capping 134 is connected through a screw thread is fixed on the right end of pipe structure 132, is provided in capping 134 as main damping
One second damping hole 1342 in hole.The hydraulic of damper fluid is injected as in the inner cavity of liquid capsule 14 and/or second chamber 122
Oil 4, when plunger 12 slides in the first chamber 112 of sleeve 11, a part in several first damping holes 1321 is in
Opening state, so that hydraulic oil 4 can pass through the first damping hole 1321 in the open state in liquid capsule 14 and second chamber 122
In back and forth flow, by hydraulic oil 4, vibrational energy is converted to heat by generated resistance when through (first, second) damping hole
Can and achieve the effect that vibration-absorbing denoising.
It should be noted that the mode for offering the second damping hole in capping is substantially equivalent to the on the right side of pipe structure
The density of one damping hole significantly increases, thus ram compression and elongation similarly apart from when, the damping force of compression process is big
The damping force in elongation process, to realize plunger in compression travel and extended travel with different damping characteristics.With
The middle part of capping is arranged for second damping hole, if the second damping hole is oversized close in the case of the upper limit,
The diameter that the aperture of the second damping hole is approximately equal to capping at this time substantially corresponds to be not provided with covering, this when hydraulic oil be to pass through
It is flowed between liquid capsule and second chamber the inner cavity of first damping hole and pipe structure in the open state.Due to the diameter of pipe structure
Larger to size, therefore throttle is very weak, during oil inlet/fuel-displaced, the effect of variable damping is unobvious.Based on this original
Reason can adjust the second damping hole for specific product to optimize the effect of variable damping.
In addition, in the present embodiment with no restriction to the quantity and size of (first, second) damping hole, for different model
For damper 1, the quantity and diameter of the first damping hole are not quite similar.For example, for smaller damper 1
It says, the diameter of the first damping hole 1321 can be in the section of a few tenths of a mm to several millimeters；And the damper 1 of relatively large-scale
It says, the diameter of the first damping hole 1321 can be in several millimeters to more than ten millimeters of section.As the first damping hole 1321 axis with
There should be angle between the axis of pipe structure 132 to make hydraulic oil be able to enter/effuser structure, each first damping hole
Angle between 1321 axis and the axis of pipe structure 132 can be identical or not identical.First damping hole 1321 is in pipe knot
Distribution density on structure can uniformly perhaps the aperture of uneven single first damping hole 1321 can be identical or not identical.
Axially disposed the first resistance for having two rows of (front and back of the pipe structure in Fig. 3) apertures roughly the same in such as pipe structure 132
Buddhist nun hole 1321 and often to ranked first damping hole be to increase (preferably gradually increasing) from left to right along axial density, and each first
It is substantially vertical between the axis of damping hole 1321 and the axis of pipe structure 132.
Preferably, liquid capsule 14 can be made by polyurethane, silica gel, rubber elastomeric material, and the main body of liquid capsule
Preferably there is ripple struction, in order to which compression/elongation deformation occurs in piston reciprocation motion process for liquid capsule.
It is being covered referring to Fig. 2 and Fig. 3 in order to reduce plunger 12 in reciprocating motion due to the noise that air is generated by compression
It is provided with bloop 113 on cylinder 11, specifically, being provided with bloop 113 in the part that sleeve 11 is engaged with plunger 12.It needs
It is noted that " part that sleeve is engaged with plunger " herein, had both included the part of permanent engagement, i.e., had been moved to most in plunger
The part still engaged with plunger in the case of right side also includes the part of process type engagement, i.e., in plunger in first chamber
Mobile process is only in the part that certain stages engage with plunger.It, can be close in sleeve and in order to improve the intensity of sleeve
The part of plunger 12 is axially disposed lateral reinforcing rib 114, or has circumferentially surrounded cricoid reinforcing rib 114.In addition,
In order to further ensure being fixedly connected between the left end of pedestal 131, the closed end of liquid capsule 14 and sleeve 11 and it is single it
Between positional relationship, can to damper 1 configure fixing piece.Referring to Fig. 3, as fixing piece include be sheathed on 11 outside of sleeve,
The clip 171 of tubular structure and several claws 172 being set on the inside of clip, it is corresponding with claw 172, on sleeve 11
Be provided with card hole, by the way that claw 172 is protruded into card hole, pedestal can be placed in first chamber 112 left end and claw it
Between, while the first fixation hole 173 and the second fixation hole 174 are also respectively provided on clip and sleeve, clip is by means of screw etc.
The cooperation of fastener and (first, second) fixation hole is fixed on sleeve close to the position of the first fixing end.It preferably, can be
Certain free travel space is reserved between the left end of one chamber 112 and the left side of claw, to advanced optimize damper
Damping property.It is understood that the realizability in order to guarantee assembly technology, clip should axially have the non-of opening
Closed-loop.Setting in this way, enable pedestal steadily in first chamber left side or can only free travel sky
Interior activity avoids so that the opposite sliding between plunger 12 and throttling element 13 more smoothly and is stablized due to pipe structure
132 the case where biasing during the work time and damper 1 is caused to fail.
It should be noted that although the present embodiment is to be integrally formed with the pedestal of throttling element with pipe structure, cover and pass through
What the form that the mode of threaded connection is fixed on pipe structure was described, but this is only intended to illustrate the principle of the present invention, not
The protection scope being designed to limit the invention.Obviously, under conditions of without departing from the principle of the invention, any type of change is all fallen
Enter among protection scope of the present invention.It is separately formed and then is fixedly connected as pedestal can be with pipe structure；For another example capping and pipe
Fixation between structure can also be realized, additionally in addition to being threadedly coupled by modes such as ultrasonic bonding, interlocking, clampings
It can be arranged in capping and the junction of pipe structure just like sealing structures such as sealing ring, sealing rings.Below with reference to Fig. 3 and with roller
The working principle of the damper 1 for roller washing machine of the invention is made for the situation of washing machine generation larger vibration brief
Explanation.
As shown in Figure 3 and according to the orientation in Fig. 3, when 12 stress of plunger is slided to the left, 14 volume of liquid capsule becomes smaller, throttling
First damping hole 1321 in the open state is reduced on part 13, and hydraulic oil 4 is squeezed, and the inner cavity of liquid capsule 14 generates positive pressure,
Hydraulic oil 4 passes sequentially through the first damping hole 1321 in the open state as variable damping hole and as the of main damping hole
Two damping holes 1341 are flowed from the inner cavity of liquid capsule 14 to second chamber 122, and hydraulic oil 4 is during flowing to second chamber 122
Damping force to the right is generated to plunger 12, the movement tendency of plunger 12 to the left is reduced, to play the effect of vibration damping, noise reduction
Fruit.Similarly, when 12 stress of plunger is slided to the right, the volume of liquid capsule 14 becomes larger, in the open state on throttling element 13 at this time
First damping hole 1321 increases, and hydraulic oil 4 is squeezed, and the inner cavity of liquid capsule 14 generates negative pressure, and hydraulic oil 4 passes sequentially through second
Damping hole 1341 and the first damping hole 1321 in the open state are flowed from second chamber 122 to the inner cavity of liquid capsule 14, liquid
Pressure oil 4 generates damping force to the left, the movement tendency of plunger 12 to the right to plunger 12 during flowing to the inner cavity of liquid capsule 14
It is reduced, to play the effect of vibration damping, noise reduction.Process of the hydraulic oil in the inner cavity of liquid capsule and the second cavity flowing of plunger
In, the first damping hole by the quantity variation in the flow path for participating in hydraulic oil that is set in pipe structure be set to
The cooperation of second damping hole of the constant number in the flow path for participating in hydraulic oil in capping, the roller of washing machine by
Impact force it is bigger, the stroke that the plunger of damper is pressed into sleeve is bigger, and the fuel-displaced damping force of hydraulic oil will step up,
I.e. damping force changes as the stroke of plunger changes, to realize the variable resistance that damping force changes with the change of impact force
Buddhist nun's effect improves loss of the viscous damping to vibration, efficiently avoids when washing machine is by unexpected large impact, due to
First damping hole number causes hydraulic oil to pass through the damping of the first damping hole greatly to form certain rigid of transmission simultaneously very little
Therefore washing machine is caused big oscillation phenomenon occur.
Preferably, referring to Fig. 3 and Fig. 4, Fig. 4 is the close of the damper for roller washing machine of an embodiment of the present invention
The structural representation of seal structure.As shown in Figure 3 and Figure 4, in order to guarantee the sealing performance between throttling element 13 and plunger, in pipe structure
Sealing structure is provided between 132 and plunger 12.Inventor has found during the experiment, due to plunger in the first cavity past
Multiple movement is more frequent, therefore reciprocating motion of the pipe structure in the second cavity is also relatively more frequent, if sealing structure uses ring
When shape seal groove is embedded in the radial dimension lesser form of the sealing rings such as O-ring seal, then it is easy to appear due to O-shaped sealing
Circle the inside in annular seal groove rotates and O-ring seal is caused to be worn quickly.In consideration of it, inventor is by repeatedly testing
The form for the sealing structure determined with experiment are as follows: the outer wall of pipe structure is provided with seal groove 13231 and seal groove has one
The fixed width such as preferably 1/20-1/3, such as 1/7-1/5 of the axial length of second chamber.Seal groove 13231 and plunger 12
Inner wall forms seal cavity, is equipped with sealing ring 13232 in seal cavity, sealing ring can be metal material be also possible to it is inorganic
Non-metallic material, preferably such as polyurethane, rubber, thermoplastic elastomer (TPE) high molecular material material.Pass through wider seal groove
13231 and sealing ring cooperation, improve the sealing performance between throttling element 13 and plunger 12, both reduce the hydraulic of gap
Oil leakage, improves the effect of viscous damping.Specifically, making hydraulic oil 4 can only be by the first damping hole in the open state
And the second damping hole in capping flows between the inner cavity of liquid capsule 14 and the second chamber of plunger, ensure that damper provides
Damping force precision, efficiently avoid plunger caused by due to damper machining accuracy, abrasion etc. and throttling element matched
Conjunction gap is excessive and further resulting in hydraulic oil and easily flowing in excessive gap substantially reduces the throttle resistance of damper
The problem of.Also, it is continuously in due to sealing ring 13232 in the environment of the hydraulic oil of encapsulation, increases making for sealing ring
With life cycle, the service life period of damper is increased indirectly.It is understood that can also be by seal groove 13231
It is set on plunger and makes the outer wall of itself and pipe structure 13 to cooperatively form and accommodate 13232 seal cavity of sealing ring.
Referring to Fig. 5, Fig. 5 is the enlarged diagram in Fig. 3 at the A of part.As shown in figure 5, in a kind of specific embodiment
In, liquid capsule is hermetically fixedly connected by pressure ring 163 with the left end of second chamber.As shown in figure 5, on the right side of pressure ring 163
First annular groove 164 is added at end, so that the right side of pressure ring 163 forms step surface.Pressure ring is stablized by close-fitting mode
Ground is fixed on the left end of plunger, and the open end of liquid capsule is clamped between pressure ring and the left end of plunger.Specifically, it is cylindrical in shape structure
The open end of liquid capsule 14 includes axial clamping section and radial clamping section, is provided with the second annular on the left end end face of plunger 45
Groove 165 is provided with first annular boss 161, the axial clamping section folder of liquid capsule in the radial outside of second annular groove 165
It holds in the axial annular gap that pressure ring and pipe structure are formed, the radial clamping section of liquid capsule is clamped in first annular groove 164
In the radial ringed gap formed with second annular groove 165, pressure ring is matched by step surface and the close of first annular boss 161
Close the left end for being fixed on plunger 12.So, after the left end of plunger installs throttling element and liquid capsule, to the right by pressure ring
It promotes, the axial clamping section of the open end of liquid capsule is then pressed into the centre bore of pressure ring, the radial clamping section of the open end of liquid capsule
It then forms thickening part and squeezes into radial ringed gap, i.e., so as to open end that is more effective, being reliably achieved liquid capsule
Fit sealing between plunger.Obviously, bolt, ultrasonic wave can also be passed through between pressure ring 163 and the left end face of plunger 12
The modes such as welding, bonding and buckle realize fastening.And the free end of liquid capsule can also pass through the other structures such as abaculus and column
Plug is realized and is sealedly and fixedly connected.
As can be seen that in damper of the invention, when damper is in the stable state for being not affected by ambient pressure, with
The first damping hole for being distributed in pipe structure axial direction is divided into two parts, i.e. first in the inner cavity in liquid capsule for boundary by pressure ring 163
Part and the second part in second chamber.Wherein, the first damping hole number of first part and second part and/or close
Degree and/or aperture and/or angle can be identical or not identical.Such as close to liquid capsule throttling hole number more than or density it is big,
Can make ram compression and elongation similarly apart from when, the damping force of compression process is less than damping force in elongation process, otherwise also
So.It should be noted that the end in addition to pipe structure is arranged in is covered, any axial position for the pipe structure that can also be arranged,
If radial direction is placed in the lumen portion of pipe structure, at this point, the first damping hole of second part is should be between pressure ring and capping
Part.
In short, in damper of the invention, 1) by the setting of liquid capsule and throttling element, by hydraulic oil in the inner cavity of liquid capsule
Flowing between the second chamber of plunger realizes the vibration and noise reducing of variable damping with hydraulic way；2) by pipe structure
The cooperation of first damping hole and the second damping hole in capping optimizes effectiveness in vibration suppression and avoids the rigidity vibration under large impact
It is dynamic；3) pass through the setting of (seal groove, sealing ring), on the one hand, damp hydraulic oil can only by the open state first
The second damping hole on hole and capping flows between the inner cavity and second chamber of liquid capsule, ensure that the damping that damper provides
The precision of power, to efficiently avoid plunger caused by due to damper machining accuracy, abrasion etc. and throttling element cooperation
Gap is excessive and further resulting in hydraulic oil and easily flowing in excessive gap substantially reduces the throttle resistance of damper
Problem.
In addition it should be pointed out that although the above preferred embodiment is illustrated by taking roller washing machine as an example,
But this is not intended to limit protection scope of the present invention, it may occur to persons skilled in the art that, in addition to roller washing machine, this
Invention can also be applied to other device for clothing processing, such as can also be applied to dryer and shoe washing machine with identical or phase
As vibration damping demand device.
So far, it has been combined preferred embodiment shown in the drawings and describes technical solution of the present invention, still, this field
Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these specific embodiments.Without departing from this
Under the premise of the principle of invention, those skilled in the art can make equivalent change or replacement to the relevant technologies feature, these
Technical solution after change or replacement will fall within the scope of protection of the present invention.
Claims (9)
1. a kind of damper, comprising:
Sleeve, the sleeve have first chamber；
Plunger, the plunger have second chamber, and the plunger is slidably inserted into the first chamber；
It is characterized in that, the damper further includes the throttling element being set in the first chamber, the throttling element includes portion
Divide the pipe structure of the insertion second chamber, is provided with several the first damping holes, the pipe knot on the tube wall of the pipe structure
It is provided with sealing structure between the outer wall of structure and the inner wall of the plunger,
A part in several described first damping holes is in the sliding of the plunger opens/closes state, to make
First chamber and the second chamber is stated to communicate with each other by the first damping hole in the open state.
2. damper according to claim 1, which is characterized in that the damper further includes liquid capsule, the liquid capsule setting
In the first chamber, the open end of the liquid capsule is fixedly connected with the plunger,
Wherein, it is filled with damper fluid in the inner cavity of the liquid capsule and/or the second chamber, the throttling element is set to described
In liquid capsule.
3. damper according to claim 2, which is characterized in that the sealing structure includes:
Seal groove is set to the outer wall of the pipe structure or the inner wall of the plunger and axially has along the second chamber
There is the width of setting；
Sealing ring is placed in the seal groove.
4. damper according to claim 3, which is characterized in that the seal groove is set to the outer wall of the pipe structure,
And
The seal groove is arranged to be in the second chamber in the whole process that the relatively described sleeve of the plunger reciprocatingly slides.
5. damper according to claim 3, which is characterized in that width of the sealing ring along the second chamber axial direction
It is consistent with seal groove.
6. damper according to claim 5, which is characterized in that width of the seal groove along the second chamber axial direction
For the 1/20-1/3 of the second chamber axial overall length.
7. the damper according to any one of claim 2 to 6, which is characterized in that the throttling element further includes pedestal, institute
It states pedestal and is set to the one end of the liquid capsule far from the plunger so that the liquid capsule is placed in the sleeve and the pedestal
Between.
8. damper according to claim 7, which is characterized in that the pipe structure has been disposed radially capping, the envelope
It covers and is provided at least one second damping hole,
The first chamber and the second chamber are by second damping hole and the first damping hole in the open state
It communicates with each other.
9. a kind of device for clothing processing, which is characterized in that the device for clothing processing includes described in any one of claims 1 to 8
Damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711435194.8A CN109957920B (en) | 2017-12-26 | 2017-12-26 | Damper and laundry treating apparatus including the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711435194.8A CN109957920B (en) | 2017-12-26 | 2017-12-26 | Damper and laundry treating apparatus including the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109957920A true CN109957920A (en) | 2019-07-02 |
| CN109957920B CN109957920B (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711435194.8A Active CN109957920B (en) | 2017-12-26 | 2017-12-26 | Damper and laundry treating apparatus including the same |
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| CN (1) | CN109957920B (en) |
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| EP0478273A2 (en) * | 1990-09-25 | 1992-04-01 | Bridgestone Corporation | Vibration damping device |
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| CN203189596U (en) * | 2013-04-02 | 2013-09-11 | 江苏昌力油缸有限公司 | Controllable reset damping oil cylinder |
| CN204780319U (en) * | 2015-06-30 | 2015-11-18 | 张志雄 | Squirrel -cage motor screw thread piston dry -cleaning cylinder of moving away to avoid possible earthquakes |
| CN107339360A (en) * | 2017-09-08 | 2017-11-10 | 中航飞机起落架有限责任公司 | A kind of undercarriage buffer |
| CN109385818A (en) * | 2017-08-04 | 2019-02-26 | 青岛海尔滚筒洗衣机有限公司 | Damper and device for clothing processing including the damper |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0478273A2 (en) * | 1990-09-25 | 1992-04-01 | Bridgestone Corporation | Vibration damping device |
| CN102094926A (en) * | 2010-12-14 | 2011-06-15 | 南京航空航天大学 | Potential energy storage type protruding undercarriage buffer |
| CN202132441U (en) * | 2011-06-24 | 2012-02-01 | 浙江强广剑工贸有限公司 | Damping shock absorber |
| CN202597572U (en) * | 2012-04-27 | 2012-12-12 | 中国直升机设计研究所 | Double-cavity buffering device |
| CN203189596U (en) * | 2013-04-02 | 2013-09-11 | 江苏昌力油缸有限公司 | Controllable reset damping oil cylinder |
| CN204780319U (en) * | 2015-06-30 | 2015-11-18 | 张志雄 | Squirrel -cage motor screw thread piston dry -cleaning cylinder of moving away to avoid possible earthquakes |
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|---|---|
| CN109957920B (en) | 2021-11-09 |
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Effective date of registration: 20210928 Address after: 266400 Haier Industrial Park, qianwangang Road, Jiaonan City, Qingdao City, Shandong Province Applicant after: QINGDAO JIAONAN HAIER WASHING MACHINE Co.,Ltd. Applicant after: Haier Smart Home Co., Ltd. Address before: 266400 Haier Industrial Park, qianwangang Road, Jiaonan City, Qingdao City, Shandong Province Applicant before: QINGDAO JIAONAN HAIER WASHING MACHINE Co.,Ltd. |
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