CN109385822A - Damper and device for clothing processing including the damper - Google Patents
Damper and device for clothing processing including the damper Download PDFInfo
- Publication number
- CN109385822A CN109385822A CN201710692866.7A CN201710692866A CN109385822A CN 109385822 A CN109385822 A CN 109385822A CN 201710692866 A CN201710692866 A CN 201710692866A CN 109385822 A CN109385822 A CN 109385822A
- Authority
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- China
- Prior art keywords
- damper
- chamber
- plunger
- pipe structure
- liquid capsule
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000013016 damping Methods 0.000 claims abstract description 108
- 239000007788 liquid Substances 0.000 claims description 83
- 239000002775 capsule Substances 0.000 claims description 82
- 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 20
- 239000011148 porous material Substances 0.000 claims description 17
- 239000012530 fluid Substances 0.000 claims description 11
- 238000005406 washing Methods 0.000 abstract description 50
- 230000001629 suppression Effects 0.000 abstract description 6
- 238000003780 insertion Methods 0.000 abstract description 5
- 230000037431 insertion Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000010720 hydraulic oil Substances 0.000 description 24
- 238000007789 sealing Methods 0.000 description 20
- 238000007906 compression Methods 0.000 description 13
- 230000006835 compression Effects 0.000 description 11
- 210000000078 claw Anatomy 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 238000005299 abrasion Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000009466 transformation 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
- D06F37/225—Damping vibrations by displacing, supplying or ejecting a material, e.g. liquid, into or from counterbalancing pockets
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: sleeve, the sleeve has first chamber；Plunger, the plunger have second chamber, and the plunger is slidably inserted into the first chamber；The damper further includes the throttling element being set in the first chamber, the throttling element include second chamber described in partial insertion pipe structure and sliding block free to slide in the pipe structure, the pipe structure is equipped with several damping holes, a part in several described damping holes is in the sliding of the plunger to be opened/closed state, the first chamber and the second chamber and communicates with each other by the 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 the clean type electric appliance that clothing is washed using electric energy, and with the quickening pace of modern life and people are to life
The raising that comfort level living requires, washing machine have become essential household electrical appliance in people's daily life.But washing machine
Apparent vibration and noise can be generated in washing, rinsing and dehydration, to the normal life of people bring it is a little not
Just.
Solve the problems, such as washing machine work when vibration and noise it is excessive on, the invention of Publication No. CN105986407A is special
Benefit application discloses a kind of " damper and washing machine, dryer ".Wherein, damper includes sleeve and the first column open at one end
Plug, one end of the first plunger are fixing end, and the other end is inserted into sleeve from the opening of sleeve, and can slide along sleeve, the first column
The friction plate with the first plunger frictional fit is provided between plug and sleeve；Sleeve is equipped with elastic component and is connected with elastic component
And can relative sleeve Frictional Slipping the second Frictional Slipping device, and move past predetermined position when the first plunger relative sleeve
Afterwards, the first plunger and the second Frictional Slipping device abut against simultaneously compression elastic piece.The damper mainly passes through the first plunger and is covering
Carry out the frictional force of friction generation in cylinder in reciprocatory movement with friction plate and in the first plunger more than predetermined position pusher
The frictional force and elastic force that dynamic second Frictional Slipping device compression elastic piece generates, realize the purpose for reducing vibration of washing machine.But
It is, when the first plunger moves back and forth in sleeve, only to do compression movement in the first plunger relative sleeve and be more than pre-determined bit
When setting, the elastic force that the frictional force and elastic component that the second Frictional Slipping device generates generate can just be intervened, and predetermined being less than
When position and the first plunger relative sleeve do extensional motion, the frictional force of generation is constant power, with the amplitude of washing machine without
It closes.Therefore, the damping force for reducing vibration which generates cannot all be covered according to first piston is opposite at any time
Cylinder movement travel increase and adjust, effectiveness in vibration suppression remains to be further improved.
In addition, the damper of this setup is after used a period of time, frictional force can be due to friction plate and second
The abrasion of Frictional Slipping device and reduce, and then damper gradually fails, cause the noise of washing machine and vibrate it is increasing, into
And influence the usage experience of user.
Correspondingly, this field needs a kind of new damper to solve the above problems.
Summary of the invention
In order to solve the above problem in the prior art, in order to solve the vibration damping effect of existing damper during the work time
The problems such as fruit is poor and the abrasion of drag ring is easy to cause defective shock absorber, the present invention provides a kind of damper, the dampers
It include: sleeve, the sleeve has first chamber；Plunger, the plunger have second chamber, and the plunger is with slidable side
Formula is inserted into the first chamber；The damper further includes the throttling element being set in the first chamber, the throttling element
Pipe structure and sliding block free to slide in the pipe structure including second chamber described in partial insertion, in the pipe structure
Equipped with several damping holes, a part in several described damping holes is in the sliding of the plunger opens/closes state,
The first chamber and the second chamber communicate with each other by the damping hole in the open state.
By the setting of pipe structure, transformation of several damping holes between first chamber and second chamber realizes and subtracts
Shake the variable damping of device；By the setting of sliding block, when the vibration amplitude that damper receives sudden surge or impact force is very big,
It avoids damper and is fully finished compression or extended travel suddenly in a short time, improve damper and eliminating vibration processes
In stationarity.Optimize the damping property of damper.
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
Fluid is filled in two chambers, the throttling element is set in the liquid capsule.
Throttling element is configured by the setting of liquid capsule and in liquid capsule, makes the fluid in liquid capsule in first chamber and the second chamber
High-precision flowing between room.Specifically, plunger be moved to the left make first chamber generate positive pressure when, for be connected to liquid capsule and
The quantity of the damping hole of second chamber gradually decreases, so that it is more next to enable flow through the difficulty that damping hole enters in second chamber
Bigger, fuel-displaced damping force is higher and higher, and the difficulty for eliminating liquid capsule positive pressure is increasing, so that the damping force that plunger is subject to also is got over
Greatly.Plunger move right make first chamber generate negative pressure when, for be connected to liquid capsule and second chamber damping hole quantity by
Cumulative more, to enable flow through, the difficulty that damping hole enters in liquid capsule is increasing, and fuel-displaced damping force is higher and higher, disappears
Except the difficulty of liquid capsule negative pressure is increasing, so that the damping force that plunger is subject to is also bigger.Therefore, in damper of the invention, with
Stroke of the plunger in sleeve increase, fuel-displaced damping force steps up, the damping force of damper also increasing, thus
The vibration and noise device for significantly reducing washing machine generates.That is, the vibration of washing machine is bigger, plunger is in sleeve
Stroke is i.e. bigger, and fuel-displaced damping force will improve, and the damping force that damper provides at this time is bigger, to significantly reduce
The vibration and noise device of washing machine generates, and then optimizes the performance of damper.
In the optimal technical scheme of above-mentioned damper, the sliding block is provided with intercommunicating pore along the axial direction of the pipe structure.
In the optimal technical scheme of above-mentioned damper, it is provided with position limiting structure in the pipe structure, it is described to limit
The range that slides axially of sliding block.
In the optimal technical scheme of above-mentioned damper, the position limiting structure is capping.
In the optimal technical scheme of above-mentioned damper, pore structure is offered in the capping.
In the optimal technical scheme of above-mentioned damper, the capping is set to the pipe structure close to the one of the plunger
End, so that the sliding block is slided in the inner cavity of the pipe structure；Or the capping is set to the inner cavity of the pipe structure, so as to
The sliding block is slided in side of the pipe structure far from the plunger and between the capping.
By the setting of position limiting structure, the appearance that sliding block skids off pipe Structure Phenomenon is efficiently avoided.
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, the pipe structure are integrally formed or are fixedly connected with the pedestal.
In the optimal technical scheme of above-mentioned damper, the inner wall of the sliding block and the pipe structure is sealingly engaged.
The present invention also provides a kind of device for clothing processing, including shell and the cylindric washer being set in the shell, institute
It states cylindric washer to be supported in the shell by multiple dampers, at least one of described damper is in above-mentioned any scheme
The damper.
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 fluid, the left end of sleeve is provided with clip/claw, and there are bloop and reinforcing rib in the position of sleeve on the right side.It is also set in liquid capsule
It is equipped with throttling element, throttling element includes bottom plate and pipe structure, and pipe structure is inserted into second chamber.Pipe structure is equipped with several damping holes,
A part in several damping holes is in the sliding of plunger opens/closes state, liquid capsule and second chamber by beating
The damping hole of open state communicates with each other.By the setting of liquid capsule, the hydraulic control of damping is realized；By the setting of throttling element,
Realize variable damper control of the plunger in sleeve in stroke moving process；Pass through clip/claw and free travel space
Setting, realizes the fixation of throttling element.Also, damper of the invention also has service life period length, damping high reliablity
The advantages of.For damper of the invention when being used for clothes treatment device (such as washing machine), the damping force that plunger is subject to is when any
Quarter is all variable, and damper can be according to the vibration frequency of washing machine automatically by damping force to making what damping property optimized to become
Gesture adjustment forms and vibrates more matched damping force with offsetting, to reduce the vibration of washing machine, reduce washing machine due to
Vibrate the noise generated.
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 the invention；
Fig. 2 is the structural schematic diagram of the damper for roller washing machine of the invention；
Fig. 3 is the schematic cross-sectional view of the damper for roller washing machine of the invention；And
Fig. 4 is partial enlarged view of the Fig. 3 at 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；133, damping hole；
134, it covers；135, sliding block；1351, intercommunicating pore；14, liquid capsule；161, first annular boss；163, pressure ring；164, first annular
Groove；165, second annular groove；171, clip；172, claw；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 fluid is hydraulic oil in specification, still, the present invention obviously can be certain using having for other forms
The fluid of viscosity, as long as the fluid itself will not cause to corrode to plunger and liquid capsule.
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.
With reference first to Fig. 1, Fig. 2 and Fig. 3, wherein Fig. 1 is the installation position of the damper for roller washing machine of the invention
Set schematic diagram；Fig. 2 is the structural schematic diagram of the damper for roller washing machine of the invention；Fig. 3 is of the invention for rolling
The schematic cross-sectional view of the damper of cylinder washing machine.As shown in Figure 1, one end of damper 1 of the invention is connected to roller washing machine
Shell 2 on, the other end of damper 1 is connected to the bottom of roller 3, when roller 3 vibrates during the work time, damping
Device 1 can support roller 3 and consume the vibrational energy of the generation of roller 3.Particularly, damper of the invention can be according to laundry
The amplitude adjust automatically damping force for the vibration that machine generates, i.e. damping force change as the stroke of plunger changes, to make damping
Device generates the damping force that the vibration different from washing machine matches, and then the vibrational energy for washing machine of effectively decaying, reduction are washed
The vibration of clothing machine simultaneously reduces the noise generated with vibration.
As shown in Figures 2 and 3, damper 1 mainly includes sleeve 11, the first end (sleeve shown in Fig. 3 with sleeve 11
11 left end) the first fixed part 111, plunger 12 and second end (plunger 12 shown in Fig. 3 with plunger 12 that are fixedly connected
Right end) the second fixed part 121 for being fixedly connected.Wherein, sleeve 11 has first chamber 112, is provided with second in plunger 12
Chamber 122.In assembled state, the first end (left end of plunger 12 shown in Fig. 3) of plunger 12 can be with slidably
Mode be inserted into first chamber 112 from the second end (right end of sleeve 11 shown in Fig. 3) of sleeve 11.Preferably, column
The inner wall of the outer wall and sleeve 11 of plug 12 is slideably tightly engaged into.First fixed part 111 is used to be connected to the roller of washing machine
3, the second fixed part 121 is used to be connected to the shell 2 of washing machine.It is understood that can also by the link position of the two into
Row is exchanged, i.e., the first fixed part 111 is connected to the shell 2 of washing machine, the second fixed part 121 is connected to the roller of washing machine
3。
With continued reference to Fig. 3, it is provided with liquid capsule 14 in first chamber 112, throttling element 13 is provided in liquid capsule 14.Liquid capsule 14
Closed end (left end of liquid capsule 14 shown in Fig. 3) be resisted against in the first chamber 112 of sleeve 11, it is preferably solid with sleeve 11
Fixed connection, the open end (right end of liquid capsule 14 shown in Fig. 3) of liquid capsule 14 is hermetically closely connect with the first end of plunger 12.
Specifically, the open end of liquid capsule 14 is fixedly connected by pressure ring 163 with the first end of plunger.Throttling element 13 include pedestal 131 with
And it is fixedly connected with pedestal 131 or integrally formed pipe structure 132, pedestal 131 are set to the closed end of liquid capsule 14, pipe structure
132 a part insertion second chamber 122.Several damping holes 133 (referring to Fig. 4) are provided in pipe structure 132, liquid capsule 14
The hydraulic oil 4 of fluid is injected as in inner cavity and/or second chamber 122, when plunger 12 is in the first chamber 112 of sleeve 11
When sliding, a part of damping hole 133 in several damping holes 133 is in the state that opens/closes, and hydraulic oil 4 can pass through place
It is back and forth flowed in liquid capsule 14 and second chamber 122 in the damping hole 133 of opening state.
Preferably, liquid capsule 14 can be made and the main body of liquid capsule by polyurethane, silica gel, rubber elastomeric material
Preferably there is ripple struction, in order to which compression/elongation deformation occurs in piston reciprocation motion process for liquid capsule.Several dampings
Hole 133 is along the outer wall for being axially set in pipe structure 132 of pipe structure 132 and the axis of the axis of damping hole 133 and pipe structure 132
With angle, it should be noted that distribution density of the damping hole 133 in pipe structure can be uniformly or uneven, single to hinder
The aperture in Buddhist nun hole 133 can be identical or not identical, and the angle between the axis of damping hole 133 and the axis of pipe structure 132 can
With identical or not identical.Preferably, the roughly the same resistance in two rows aperture is equably provided in pipe structure 132 along axial direction
Buddhist nun hole 133, and the angle between the axis of each damping hole 133 and the axis of pipe structure 132 is 90 °.Pedestal 131 is in circumferential direction
The inner wall of outer rim and first chamber 112 match, if first chamber 112 is cylindrical cavity, pedestal 131 is cylindrical knot
Structure, and the cross-sectional diameter of cylindrical structure cross-sectional diameter and cylindrical cavity is roughly equal.
Referring still to Fig. 3, the right end of pipe structure 132 is provided with capping 134, and the mode that capping 134 is connected through a screw thread is solid
Due to the right end of pipe structure 132, the inner cavity of pipe structure 132 is provided with can be along the sliding block 135 of axially free sliding, sliding block
Portion is axially disposed intercommunicating pore 1351.Obviously, it covers with the fixation between pipe structure in addition to being threadedly coupled, it can also be by super
The modes such as sound wave welding, interlocking, clamping are realized.As a preference, can be provided in capping and the junction of pipe structure
Such as sealing ring, sealing ring sealing structure.
As can be seen that the damping hole of pipe structure is divided into two parts using pressure ring as boundary, that is, is located in damper of the invention
First part in the inner cavity of liquid capsule and the second part in second chamber.Wherein, first part and second part
It damps hole number and/or density and/or aperture and/or angle can be identical or not identical.Such as in the throttle orifice close to liquid capsule
Quantity is more, so, ram compression and elongation similarly apart from when, the damping force of compression process, which is less than in elongation process, to be damped
Power, vice versa, to realize plunger in compression travel and extended travel with different damping characteristics.If being not provided with sealing
Lid, hydraulic oil is flowed between liquid capsule and second chamber by the damping hole of first part and the inner cavity of pipe structure, due in
The size of portion's tube body is larger, therefore throttle is very weak, and during oil inlet/fuel-displaced, the effect of variable damping is unobvious.Pass through
The setting of capping, during plunger moves downward, hydraulic oil flows into pipe structure through the damping hole of first part, and passes through
The damping hole of second part flow to the radial clearance between plunger and throttling element, further flows into second chamber through radial clearance.
As the depth of the second chamber of pipe structure insertion plunger is increasing, the quantity of the damping hole of first part is fewer and fewer, the
The quantity of the damping hole of two parts is more and more, then the difficulty that hydraulic oil flows into second chamber by the inner cavity of liquid capsule is increasing,
That is the damping force of damper generation is increasing, and vice versa.In short, increasing of the damping force of damper generation with Oscillation Amplitude
Add and increase, to optimize the damping property of damper, has also achieved the effect that noise reduction on the basis of vibration damping.
When the viscosity of fluid is larger, the fluid in liquid capsule is squeezed into second chamber and second chamber through radial clearance
The difficulty for the inner cavity that fluid squeezes into pipe structure through radial clearance increases, and can offer pore structure, this feelings in capping at this time
Be equivalent under shape and significantly increase the density of the damping hole of second part, thus ram compression and elongation similarly apart from when,
The damping force of compression process is greater than damping force in elongation process, to realize that plunger has not in compression travel and extended travel
Same damping characteristic.It is understood that pore structure can be single hole perhaps it is porous it is porous be evenly distributed or unevenly,
It aperture can be same or different.
It should be noted that the intercommunicating pore 1351 on sliding block can be single hole or porous form, and intercommunicating pore 1351 can
To omit.In the case of intercommunicating pore omits, the effect of sliding block is: when damper receives the vibration of sudden surge or impact force
When dynamic amplitude is very big, throttling element necessarily also will receive big impact force, and impact force keeps sliding block free to slide in the inner cavity of pipe structure,
Compression or extended travel are fully finished suddenly in a short time so as to avoid damper, realize that vibration and noise reducing is striven for damper
Some times have been got, washing machine has been improved and is eliminating the stationarity in vibration processes.Also, the movement of sliding block can also be adjusted
The quantity of (liquid inlet and outlet) damping hole realizes the variable damping purpose of damper.Obviously, sliding block skids off pipe structure in order to prevent, needs
Position limiting structure is added in pipe structure to limit the scope of activities and displacement of sliding block.Such as can sliding block left and right side it is equal
Position limiting structure is set, the limit knot as right side can also be covered using the inner cavity left wall of pipe structure as the position limiting structure in left side
Structure.In the case of sliding block is provided with intercommunicating pore, hydraulic oil can pass through connection of the intercommunicating pore in pipe structure.
It will be appreciated by persons skilled in the art that covering the end in addition to pipe structure is arranged in, the pipe that can also be arranged
Any axial position of structure, that is, be arranged in the inner cavity of pipe structure, and the damping hole of second part is the portion between pressure ring and capping
Point.Obviously, in this case, in order to realize flowing of the hydraulic oil between the inner cavity and second chamber of liquid capsule, capping should
Position in pipe structure on the right side is in second chamber always from the beginning to the end.Capping be set to pipe structure end,
Pore structure is in the case of the aperture of single hole and pore structure is larger, capping be generally shaped like from the end of the right end of pipe structure to
The baffle ring of interior extension.As can be seen that the capping above-mentioned for being not provided with pore structure, the capping for being provided with pore structure and end are inside
The baffle ring of extension can skid off the position limiting structure of throttling element as limitation sliding block.
In order to reduce plunger in reciprocating motion due to the noise that air is generated by compression, bloop is provided on sleeve
113, specifically, being provided with bloop in the part that sleeve is engaged with plunger.It should be noted that " sleeve and column herein
Fill in the part of engagement ", both included the part of permanent engagement, i.e., had still been engaged with plunger in the case of plunger is moved to the rightmost side
Part, also include the part of process type engagement, i.e., the process move in first chamber in plunger is in certain stages and column
Fill in the part of engagement.In addition, in order to improve the intensity of sleeve, there can be cross close to the part of plunger 12 is axially disposed in sleeve
To reinforcing rib 114, or circumferentially surrounded cricoid reinforcing rib 114.
It, can be in pipe in order to guarantee the sealing performance between throttling element 13 and plunger 12 and throttling element 13 and sliding block 135
It is provided with the first sealing structure between structure 132 and the first end of plunger 12, is provided with energy between pipe structure 132 and sliding block 135
The structure of enough second seals structures for separating the inner cavity of pipe structure, the first sealing structure and second seals structure can phase
With or it is not identical.Referring to Fig. 3, by taking second seals structure as an example, can pipe structure 132 inner wall or sliding block 135 it is outer
Wall is provided with annular seal groove, is embedded in O-ring seal in annular seal groove.It is further preferably, can be by ring packing
The axial length of slot is set greater than the diameter of O-ring seal so that O-ring seal can be slided in annular seal groove, with into
The damping property of one-step optimization damper.Specifically, on the one hand, the setting of O-ring seal may be implemented pipe structure 132 and slide
Sealing between block 135, it is ensured that hydraulic oil 4 only leads to not by the gap flowing between the outer wall and pipe structure 132 of sliding block
Intercommunicating pore 135 in the middle part of overdamp hole 133 and sliding block realizes the flowing between liquid capsule 14 and second chamber 122, avoid by
Keep the fit clearance between pipe structure 132 and sliding block 135 excessive in machining accuracy, abrasion etc., and then hydraulic oil 4 passes through the gap
The problem of damping force of damper 1 substantially reduces caused by flowing appearance, improves the effectiveness in vibration suppression of damper 1.Another party
Face, the setting of the biggish annular seal groove of axial length may be implemented damper 1 and provide different resistances under different Vibration Conditions
Buddhist nun's power.Specifically, O-ring seal can be by way of sliding in annular seal groove when washing machine generates small vibration
Enter sub-fraction hydraulic oil 4 in annular seal groove, and then it is past in liquid capsule 14 and second chamber 122 to reduce hydraulic oil 4
Resistance when resurgent is dynamic is reduced and is transmitted by damper 1 so that the damping force that damper 1 provides in small vibration also reduces
The small vibration of roller 3 on to the shell of washing machine, ensure that running smoothly for washing machine, noise is small.And it is generated in washing machine
When big vibration, fast due to vibrating big and vibration velocity, O-ring seal does not move substantially relative to annular seal groove at this time, this is with regard to suitable
It is fixedly connected in annular seal groove in O-ring seal, the resistance that hydraulic oil 4 back and forth flows in liquid capsule 14 and second chamber 122
Power is basically unchanged, so that in big vibration, damper 1 is capable of providing relatively large damping force, to rapidly reduce washing machine
The vibration of generation.
On this basis, it in order to advanced optimize the damping property of damper, can also be configured in second chamber 12
Spring, the both ends of spring bear against the right end to the right end of the pipe structure of throttling element and second chamber.The effect of spring includes:
The pedestal for ensuring throttling element left end is playback, avoids the problem that throttling element is made any stop occur due to throttle resistance；Spring
The vibrational energy of storage can carry out further damping consumption vibration.It is understood that spring can be same diameter
Cylindrical spring, being also possible to (mid diameter is big, both ends diameter is small), either diameter becomes larger or becomes from one end to the other end
Small deformed spring, in the case of the right end of pipe structure is provided with capping and is provided with sliding block in the inner cavity of pipe structure,
The left side of spring can also be resisted against sliding block and be existed with restricting sliding block against the damping force for restricting throttling element entirety to capping
Damping force in pipe structure, further, it is also possible to which the left side on the left of the inner cavity of pipe structure with sliding is also equipped with spring.It can manage
Spring, can also be replaced with other elastic components such as leaf spring, elastomer block by solution.
It, can in order to further ensure the positional relationship between the first end of pedestal 131, the closed end of liquid capsule 14 and sleeve
To configure fixing piece to damper 1.Referring still to Fig. 3, fixing piece includes the clip of tubular structure that is being sheathed on 11 outside of sleeve
171 and several claws 172 for being set on the inside of clip, it is corresponding with claw 172, it is provided with card hole on sleeve 11, blocks
Pedestal can be placed in by the first fixing end that screw etc. is fixed on damper by protruding into claw 172 in card hole by hoop
Between the left end and claw of first chamber 112.It preferably, can be in the left end of first chamber 112 and by being provided between claw
Certain free travel space, to advanced optimize the damping property of damper.It is understood that in order to guarantee assembly technology
Realizability, clip should be axially have opening non-close ring.
Referring to Fig. 4, Fig. 4 is partial enlarged view of the Fig. 3 at A, and a kind of embodiment of pressure ring sealing is shown in figure.Such as figure
Shown in 4, the right end of pressure ring 163 adds first annular groove 164, so that the right side of pressure ring 163 forms step surface.Pressure ring passes through tight
Leakproof fit mode is stably fixed to the first end (i.e. left end) of plunger, and the open end of liquid capsule is clamped in the of pressure ring and plunger
Between one end.Obviously, it can also be realized by modes such as bolt, ultrasonic bonding, bonding and buckles between pressure ring and plunger
Fastening.
With further reference to Fig. 4, the open end for being cylindrical in shape the liquid capsule 14 of structure includes axial clamping section and radial clamp area
Section is provided with second annular groove 165 on the left end end face of plunger 45, second in a kind of embodiment of pressure ring sealing
The radial outside of annular groove 165 is provided with first annular boss 161, and the axial clamping section of liquid capsule is clamped in pressure ring and pipe knot
In the axial annular gap being configured to, the radial clamping section of liquid capsule is clamped in first annular groove 164 and second annular groove
In the 165 radial ringed gaps formed, pressure ring is fixed on plunger 12 by the tight fit of step surface and first annular boss 161
Left end.So, it after the left end of plunger installs throttling element and liquid capsule, is promoted to the right by pressure ring, liquid capsule is opened
The axial clamping section at mouth end is then pressed into the centre bore of pressure ring, and the radial clamping section of the open end of liquid capsule then forms thickening part simultaneously
Squeeze into radial ringed gap, i.e., so as to it is more effective, be reliably achieved it is tight between the open end of liquid capsule and plunger
Gu sealing.
Meanwhile during plunger is moved back and forth relative to throttling element, the axial clamping section of the open end of liquid capsule makes
Gap between plunger and throttling element is sealed, i.e., axial clamping section plays the role of dynamic sealing simultaneously, thus effectively
Enhance throttle effect.So, the axial clamping section of the open end of liquid capsule is equivalent to the first sealing knot above-mentioned
Structure.In order to guarantee the sealing between plunger and throttling element, can near the right side of pressure ring incremental redundancy sealing structure, it is this
Under situation, strictly speaking, the damping hole of first part and second part is using the sealing structure of redundancy as boundary.
In the another embodiment of pressure ring sealing, the second ring annular groove replaces with the second annular convex platform.It is specific and
Speech specifically extends the second hollow annular convex platform in the radially inner side of first annular boss 161 in the left end of plunger, and first
Part other than second annular convex platform radial direction is divided into the first part and in the outer part for being used to seal in the inner part by annular convex platform
Second part used for positioning, the axial annular gap that the axial clamping section of liquid capsule is clamped in pressure ring and pipe structure is formed
In, in the radial ringed gap that the radial clamping section of liquid capsule is clamped in step surface and first part is formed, pressure ring passes through step
The left end of plunger is fixed in the tight fit of face and second part.So, throttling element and liquid are installed in the left end of plunger
It after capsule, is promoted to the right by pressure ring, the radial clamping section of the open end of liquid capsule forms thickening part and squeezes to radial ringed
In gap, so as to fit sealing that is more effective, being reliably achieved between the open end of liquid capsule and plunger.
As can be seen that in damper of the invention, the essence of pressure ring sealing is by first annular boss 161 by plunger
The end face of first end be divided into radial outside portion and radial inside portion, radial outside portion mainly passes through step and step
Close engaging realize positioning, and radial inside portion be mainly used for realize liquid capsule fixation and sealing.
In short, in damper of the invention, 1) since the closed end of liquid capsule 14 passes through pedestal and (clip, claw) and covers
Cylinder 11 is fixedly connected and the closed end of liquid capsule 14 is fixedly connected by pressure ring with plunger 12, therefore in plunger 12 in sleeve 11
During moving back and forth in first chamber 112, the meeting stretching/compressing liquid capsule 14 of plunger 12, liquid capsule 14 can be due to being stretched/compressing
One elastic damping power is provided.Specifically, as plunger 12 deviates the increase of the stroke of equilbrium position in sleeve 11, by
To elastic damping power also increasing, to enhance the effectiveness in vibration suppression of damper 1；2) due to being provided with throttling in liquid capsule 14
A part insertion second chamber 122 of the pipe structure 132 of part 13 and throttling element 13, therefore in plunger 12 the first of sleeve 11
During moving back and forth in chamber 112, the number of damping hole 133 in the open state is changing at any time, and then passes through resistance
The damping force that Buddhist nun hole 133 generates also correspondingly is changing, to further enhance the effectiveness in vibration suppression of damper 1；And it 3) saves
Stream part realizes opposing seal by (annular seal groove, O-ring seal) and plunger 12, therefore in plunger 12 relative to sleeve 11
During being slided, hydraulic oil 4 only can be by the damping hole on throttling element in liquid capsule 14, pipe structure and second chamber 122
Between flow, avoid due to hydraulic oil 4 reveal caused by damper 1 fail the problem of.In addition, the week of pedestal 131 is outward
The inner wall of edge and first chamber 112 matches and the setting of (clip, claw), and pedestal 131 is also enabled to limit pipe structure
132 horizontal position, even if pedestal can steadily be in the left side (can only be movable in free travel space) of first chamber,
So that the opposite sliding between plunger 12 and throttling element 13 more smoothly and is stablized, avoid throttling element 13 in the course of work
In, due to pipe structure 132 biases and the case where cause damper 1 to fail.
Compared to the existing damper of rotating drum washing machine for carrying out vibration damping using frictional force, pass through setting for liquid capsule and throttling element
It sets, the damping force that damper 1 of the invention generates damping force inconstant at any time changes with the amplitude of vibration
Become, the amplitude of vibration is bigger, and the damping force for resisting the vibration that damper 1 generates is also bigger.Moreover, damping of the invention
The problem of damper 1 fails after a period of work will not occur in device 1.That is, damper of the invention realizes resistance
The consecutive variations of Buddhist nun's power enhance the effectiveness in vibration suppression of damper, increase the service life period of damper, improve damper
Reliability, when damper is used for roller washing machine, hence it is evident that improve the usage experience of user.
Herein, it is also necessary to explanation, in the present embodiment with no restriction to the quantity and diameter of damping hole 133, for not
For the damper 1 of model, the quantity and diameter of damping hole 133 are not quite similar.For example, for smaller damping
For device 1, the diameter of damping hole 133 can be in the thickness section of a few tenths of a mm to several millimeters；And the damper 1 of relatively large-scale
For, the diameter of valve block can be in several millimeters to more than ten millimeters of thickness section.
It will be appreciated by persons skilled in the art that the preferred arrangement of above-mentioned damping hole 133 is used merely to explain this
The principle of invention, it is not intended that with limit the scope of the invention, under the premise of without departing from the principle of the invention, this field skill
Art personnel can also carry out any form of adjustment to above-mentioned set-up mode, to adapt to more specifical application.For example,
The section of damping hole 133 can also be ellipse or rectangle；Pedestal 131 can be fixed with pipe structure 132 by the way of being spirally connected
Connection；Angle between the axis of damping hole 133 and the axis of pipe structure 132 can be any nonparallel angle, such as damp
The angle of the axis in hole 133 and the axis of pipe structure 132 in horizontal direction to the left is 45 ° or 60 °.
To the damper for roller washing machine of the invention below with reference to Fig. 3 and for when washing machine generates big vibration
1 working principle is described briefly.
By the orientation in Fig. 3, when 12 stress of plunger is slided to the left, 14 volume of liquid capsule becomes smaller, and is in and beats on throttling element 13
The damping hole 133 of open state is reduced, and hydraulic oil 4 is squeezed, and the inner cavity of liquid capsule 14 generates positive pressure, and hydraulic oil 4, which passes through to be in, to be beaten
The less damping hole 133 of open state is flowed from the inner cavity of liquid capsule 14 to second chamber 122, and hydraulic oil 4 is flowing to second chamber
Damping force to the right is generated to plunger 12 during 122, the movement tendency of plunger 12 to the left is reduced, subtracts to play
It shakes, the effect of noise reduction.Similarly, when 12 stress of plunger is slided to the right, the volume of liquid capsule 14 becomes larger, and is on throttling element 13 at this time
The damping hole 133 of opening state increases, and hydraulic oil 4 is squeezed, and the inner cavity of liquid capsule 14 generates negative pressure, and hydraulic oil 4 is by being in
The more damping hole 133 of opening state is flowed from second chamber 122 to the inner cavity of liquid capsule 14, and hydraulic oil 4 is flowing to liquid capsule 14
Inner cavity during damping force to the left is generated to plunger 12, the movement tendency of plunger 12 to the right is reduced, to play
The effect of vibration damping, noise reduction.Also, the setting of pressure ring and (annular seal groove, O-ring seal) efficiently avoids occurring following
Problem: cause plunger and throttling element fit clearance excessive due to damper machining accuracy, abrasion etc., cause hydraulic oil in mistake
It is easily flowed in big gap, and then substantially reduces the throttle resistance of damper.That is, due to pressure ring and (annular
Seal groove, O-ring seal) setting, make 4, hydraulic oil in second chamber by more damping hole in the open state
133 flow into the inner cavity of liquid capsule 14, ensure that the precision for the damping force that damper provides.
Referring again to Fig. 1, another aspect of the present invention provides a kind of washing machine comprising shell 2 and is set to shell
Roller 3 in 2, roller 3 are supported on shell 2 by two dampers 1, it is preferable that two dampers 1 are this above-mentioned hair
The bright damper 1 for roller washing machine.Certainly, setting quantity of the damper 1 in roller washing machine is not unalterable,
Three, four or more dampers 1 are also provided in roller washing machine, and at least one in these dampers 1
A is the damper 1 of aforementioned present invention.
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 rotary drum washing machine, dryer and shoe washing machine
Device with the same or similar vibration-proof structure.
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 (10)
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 for being inserted into the second chamber and sliding block free to slide in the pipe structure, if the pipe structure is equipped with
A dry damping hole, a part in several described damping holes are in the state that opens/closes with the sliding of the plunger, and described the
One chamber and the second chamber communicate with each other by the 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 fluid in the inner cavity of the liquid capsule and/or the second chamber, the throttling element is set to the liquid capsule
In.
3. damper according to claim 2, which is characterized in that the sliding block is provided with company along the axial direction of the pipe structure
Through-hole.
4. damper according to claim 3, which is characterized in that position limiting structure is provided in the pipe structure, to limit
Make the range that slides axially of the sliding block.
5. damper according to claim 4, which is characterized in that the position limiting structure is capping.
6. damper according to claim 5, which is characterized in that offer pore structure in the capping.
7. damper according to claim 5, which is characterized in that the capping is set to the pipe structure close to the column
One end of plug, so that the sliding block slides in the inner cavity of the pipe structure；Or
It is described to cover the inner cavity for being set to the pipe structure, so that the sliding block is in the side of the pipe structure far from the plunger
It is slided between the capping.
8. the damper according to any one of claim 2 to 7, 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, the pipe structure and the pedestal are integrally formed or fixed company
It connects.
9. damper according to any one of claim 1 to 7, which is characterized in that the sliding block and the pipe structure
Inner wall is sealingly engaged.
10. a kind of device for clothing processing, including shell and the cylindric washer being set in the shell, the cylindric washer passes through multiple
Damper is supported in the shell, which is characterized in that at least one of described damper is to appoint according in claim 1-9
Damper described in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710692866.7A CN109385822B (en) | 2017-08-14 | 2017-08-14 | Damper and laundry treating apparatus including the same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710692866.7A CN109385822B (en) | 2017-08-14 | 2017-08-14 | Damper and laundry treating apparatus including the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109385822A true CN109385822A (en) | 2019-02-26 |
| CN109385822B CN109385822B (en) | 2021-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710692866.7A Active CN109385822B (en) | 2017-08-14 | 2017-08-14 | Damper and laundry treating apparatus including the same |
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| EP0478273A2 (en) * | 1990-09-25 | 1992-04-01 | Bridgestone Corporation | Vibration damping device |
| CN200943665Y (en) * | 2006-08-03 | 2007-09-05 | 袁建明 | Shock damper |
| CN202132441U (en) * | 2011-06-24 | 2012-02-01 | 浙江强广剑工贸有限公司 | Damping shock absorber |
| CN102359529A (en) * | 2011-09-12 | 2012-02-22 | 吕再昌 | Piston type hydropneumatic buffer |
| CN202597572U (en) * | 2012-04-27 | 2012-12-12 | 中国直升机设计研究所 | Double-cavity buffering device |
| CN105755757A (en) * | 2016-04-13 | 2016-07-13 | 青岛海尔洗衣机有限公司 | Washing machine feet with automatic levelling function and washing machine |
| CN106564456A (en) * | 2015-10-09 | 2017-04-19 | 宝应县宝鸿汽配厂 | Hydraulic buffer type bumper |
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2017
- 2017-08-14 CN CN201710692866.7A patent/CN109385822B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0478273A2 (en) * | 1990-09-25 | 1992-04-01 | Bridgestone Corporation | Vibration damping device |
| CN200943665Y (en) * | 2006-08-03 | 2007-09-05 | 袁建明 | Shock damper |
| CN202132441U (en) * | 2011-06-24 | 2012-02-01 | 浙江强广剑工贸有限公司 | Damping shock absorber |
| CN102359529A (en) * | 2011-09-12 | 2012-02-22 | 吕再昌 | Piston type hydropneumatic buffer |
| CN202597572U (en) * | 2012-04-27 | 2012-12-12 | 中国直升机设计研究所 | Double-cavity buffering device |
| CN106564456A (en) * | 2015-10-09 | 2017-04-19 | 宝应县宝鸿汽配厂 | Hydraulic buffer type bumper |
| CN105755757A (en) * | 2016-04-13 | 2016-07-13 | 青岛海尔洗衣机有限公司 | Washing machine feet with automatic levelling function and washing machine |
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| Publication number | Publication date |
|---|---|
| CN109385822B (en) | 2021-10-29 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20210909 Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER WASHING MACHINE Co.,Ltd. Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER WASHING MACHINE Co.,Ltd. |
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