CN101413199B - Drum-type washing machine - Google Patents

Drum-type washing machine Download PDF

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Publication number
CN101413199B
CN101413199B CN2008101705305A CN200810170530A CN101413199B CN 101413199 B CN101413199 B CN 101413199B CN 2008101705305 A CN2008101705305 A CN 2008101705305A CN 200810170530 A CN200810170530 A CN 200810170530A CN 101413199 B CN101413199 B CN 101413199B
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CN
China
Prior art keywords
washing machine
padded coaming
vibration
steel ladle
machine body
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Expired - Fee Related
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CN2008101705305A
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Chinese (zh)
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CN101413199A (en
Inventor
松冈真二
寺井谦治
松本俊成
姜雅人
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Publication of CN101413199A publication Critical patent/CN101413199A/en
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F23/00Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/06Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about an inclined axis
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/22Mountings, 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

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

The invention provides a drum type washing machine capable of restraining the shock transmitted to a washing machine body and effectively attenuating the shock of a water container unit. A liquid filled buffering rubber (26) is arranged at the outside of a supporting axle (23) to buffer lower materials or upper materials, so that the damping property is fully exerted in the dehydration starting process when the supporting axle moves in rotation (inclined) direction or rotates in grinding rod manner, the rotation shock of the water container unit (5) is effectively attenuated and restrained, and the shock transmitted to washing machine body and the shock of a water container unit in the dehydration starting process are restrained to realize low shock.

Description

Tumbling-box washing machine
Technical field
The present invention relates to a kind of cylinder rotation of washings being housed by driving come and wash, the tumbling-box washing machine of various laundry operations such as rinsing, dehydration.
Background technology
The supporting structure sectional view of the steel ladle unit 5 in the existing tumbling-box washing machine 1 has been shown among Fig. 6.As shown in Figure 6, the structure of above-mentioned steel ladle unit 5 is: taken in swing roller 2 in the tube 3 that is filled with water, the rotating shaft 2a of swing roller 2 is supported by the bearing 6 that is arranged on tube 3 rear portions that are filled with water, and the drive motor 7 of rotating shaft 2a and swing roller is connected.Above-mentioned steel ladle unit 5 is obliquely installed in washing machine body 8 with the state of anterior perk, and its weight is supported by two vibrationproof dampers 9 about on the base 14 that is installed in washing machine body 8.Simultaneously, the front of washing machine body 8 and the back side have been set up first ring spring 10, the second ring spring 10a respectively, and above-mentioned steel ladle unit 5 is carried out elastic bearing.
Fig. 7 be in the existing tumbling-box washing machine the structure chart of shockproof damping mechanism.As shown in Figure 7, vibrationproof damper 9 constitutes by the hydraulic damping mechanism 11 of enclosing hydraulic oil in the hydraulic cylinder with the ring spring mechanism 12 of hydraulic damping mechanism 11 coaxial settings.The peripheral part that is fixed on the bolster 13 of hydraulic damping mechanism 11 lower ends is provided with ring spring mechanism 12, and is fixed on by padded coaming 15 on the base plate 14 of washing machine body 8.On the other hand, (top) the 2nd bolster 13a of formation hydraulic damping mechanism 11 then is fixed on the lower support parts 16 of tube 3 bottoms that are filled with water by padded coaming 15.
In said structure, because swing roller 2 is at axis of rotation in horizontal direction or have with respect to horizontal direction under the state of inclination and be arranged in the steel ladle unit 5, so when making swing roller 2 rotations implement dehydrating operations, washings in the swing roller 2 can be partial to the below, thereby produces unbalanced situation.
If the washed unbalance condition that is in the swing roller 2, very big vibration will take place in the steel ladle unit 5 of taking in this swing roller 2 when then swing roller 2 rotates.The vibration that produces for the rotation that suppresses accompanying rotation cylinder 2, steel ladle unit 5 in the washing machine that has has used the decay vibrationproof supporting of the very big vibrationproof damper 9 of attenuation coefficient, and in order to reduce vibration amplitude, also affix suppresses the weight (example wherein can open flat 06-327892 with reference to day disclosure communique spy) of vibration.
In addition, the washing machine that also has with steel ladle unit 5 by vibrationproof damper 9 from being supported from the below near positive position with respect to its center of gravity, carry out elastic bearing in a positive side by the top of 10 pairs of steel ladle unit 5 of the 1st ring spring, again by the 2nd ring spring 10a to the below of steel ladle unit 5 from the back side one side carry out elastic bearing (example wherein can with reference to TOHKEMY 2005-137643).
But, the component parts of above-mentioned existing damping is many, and for the tumbling-box washing machine of for example setting up the weight that suppresses vibration, can cause weight to increase, problems such as difficulty, cost increase are got up in carrying, and set up ring spring and also need certain space.
And, only rely on the very big vibrationproof damper 9 of damping coefficient to support the words that the steel ladle unit carries out vibration damping, the reception and registration rate that (about 800-1200 rev/mins) vibration was communicated on the washing machine body 8 when dehydrating operations entered the stable state rotation will increase, and can make the body of washing machine produce very big vibration.
And particularly in dehydration rotation beginning back during to the dehydration starting of about 300 rev/mins (resonant frequencies that are equivalent to steel ladle unit 5), steel ladle unit 5 will rock the formula vibration back and forth.Vibrate i.e. shaking shown in Fig. 7 arrow A if steel ladle unit 5 is simple above-below directions, existing vibrationproof damper 9 just can be realized vibration damping.But if clothing just can produce imbalance, can occur the rotation that rotates back and forth motion or the grinding bar type shown in the arrow C among Fig. 7 with respect to center of gravity G shown in Fig. 7 arrow B when being distributed in the fore-and-aft direction of swing roller 2.With respect to such motion mode, just can not obtain the favorable damping effect in the direction of motion, abnormal vibrations can take place in steel ladle unit 5, produces different sound and bumps, produces damage with other product.
Summary of the invention
The present invention is intended to solve the above-mentioned problems in the prior art, under the not increase portion product and the prerequisite of not gaining in weight, provide a kind of stable vibration on the washing machine body, but also steel ladle unit drum type washing machine with vibration can reduce dehydration effectively and start the time of being communicated to when reaching stable state that not only suppressed to dewater.
In order to address the above problem, comprise in the tumbling-box washing machine of the present invention: the swing roller that rotary middle spindle is on the direction of approximate horizontal, takes in washings and rotatablely move; Described swing roller is located at its inside, flexiblely is bearing in steel ladle unit in the washing machine body in freely mode of rotation; Drive the motor of described rotary drum rotating; The damping unit that described steel ladle unit is carried out elastic bearing, makes its vibration obtain decaying in the bottom; Be arranged on bolster and the axial ring spring device of described supporting with the coaxial setting of described damping unit; The lower end of described damping unit is fixed on bottom padded coaming on the described washing machine body bottom; Be fixed on the top padded coaming of bottom, described steel ladle unit with upper end with described damping mechanism.Wherein, at least one side in described bottom padded coaming and the top padded coaming is equipped with the liquid sealing type yielding rubber in the outside of described bolster.
After adopting such formation, because padded coaming has adopted the liquid sealing type yielding rubber, when dehydration starting, for the direction of rotation (incline direction) of the bolster of the damping force that is difficult to obtain the vibrationproof damper or bar-shaped when shaking the direction motion for grinding, also can guarantee to obtain sufficient damping force, the whirling vibration for the steel ladle unit realizes vibration damping, suppresses effect effectively.In addition, under the occasion that moves up and down that the steel ladle when normal dehydration mainly carries out, can suppress to be communicated to the vibration of washing machine body, when dehydration starting, can suppress the whirling vibration of steel ladle unit again.
The preferred embodiments of the invention are as follows.Tumbling-box washing machine of the present invention comprises: the swing roller that rotary middle spindle is on the direction of approximate horizontal, takes in washings and rotatablely move; Described swing roller is located at its inside, flexiblely is bearing in steel ladle unit in the washing machine body in freely mode of rotation; Drive the motor of described rotary drum rotating; The damping unit that described steel ladle unit is carried out elastic bearing, makes its vibration obtain decaying in the bottom; Be arranged on bolster and the axial ring spring device of described supporting with the coaxial setting of described damping unit; The lower end of described damping unit is fixed on bottom padded coaming on the described washing machine body bottom; Be fixed on the top padded coaming of bottom, described steel ladle unit with upper end with described damping mechanism.Wherein, at least one side in described bottom padded coaming and the top padded coaming is equipped with the liquid sealing type yielding rubber in the outside of described bolster.By adopting such formation, the whirling vibration that the steel ladle unit of complex vibration takes place when dehydration starting can the viscosity when enclosing liquid flow decay, and realizes low vibrationization.
In addition, in tumbling-box washing machine of the present invention, described bottom padded coaming and described top padded coaming are the elastomeric material of tan δ=0.7 ± 0.2 for the attenuation characteristic coefficient.Like this, the marginal vibration value that the whirling vibration of steel ladle unit does not have a negative impact for machine during dehydration starting and the vibration values of washing machine body all can be set in perhaps in the appearance scope, and the deterioration that can take into account body vibration prevents to suppress two aspects with the whirling vibration of steel ladle unit.
In addition, comprise in bottom padded coaming described in the tumbling-box washing machine of the present invention and the described top padded coaming: be arranged on the 1st padded coaming of the interior all side adjacent and be located at the 2nd padded coaming of the outer circumferential side of the 1st padded coaming with the bolster of damping unit, and the loss coefficient of the 2nd padded coaming of peripheral part side is greater than the loss coefficient of the 1st padded coaming of interior perimembranous side, perhaps its height of hardness ratio.Like this, when just the bolster in the steel ladle unit significantly rotates (inclinations) or when doing to grind bar type and move, the padded coaming that the loss coefficient in the outside is bigger just works.
Description of drawings
Fig. 1 is the vibrationproof damper pie graph of the tumbling-box washing machine in the embodiment of the invention 1,
Fig. 2 is the vibrationproof damper operation chart of the tumbling-box washing machine in the embodiment of the invention 1,
Fig. 3 is the vibrationproof damper pie graph of the tumbling-box washing machine in the embodiment of the invention 2,
Fig. 4 is the loss coefficient of the tumbling-box washing machine in the embodiment of the invention 2 and the graph of a relation between each vibration values,
Fig. 5 A is the local pie graph of the vibrationproof damper of the tumbling-box washing machine in the embodiment of the invention 3, and Fig. 5 B is this vibrationproof damper operation chart,
Fig. 6 is the sectional view of the supporting structure in the existing tumbling-box washing machine,
Fig. 7 is the structure chart of existing vibrationproof damper,
The specific embodiment
With reference to the accompanying drawings embodiments of the invention are elaborated.It is pointed out that simultaneously such embodiment does not have the effect that limits the scope of the invention.
(embodiment 1)
Fig. 1 is the vibrationproof damper pie graph of the tumbling-box washing machine in the embodiment of the invention 1.Other component parts in this tumbling-box washing machine are identical with existing tumbling-box washing machine, are not described in detail in this.
As shown in Figure 1, the vibrationproof damper 20 in the present embodiment 1 comprises: in hydraulic cylinder, enclose hydraulic oil hydraulic damping mechanism 21 and with the ring spring mechanism 22 of hydraulic damping mechanism 21 coaxial settings.The lower end of hydraulic damping mechanism 21 is fixed with bolster 23, and the peripheral part of bolster 23 is provided with ring spring mechanism 22, and is fixed on by liquid sealing type bottom padded coaming 25 on the bottom 14 of fixation side of washing machine body 8.In addition, (being positioned at the top) the 2nd bolster 23a that constitutes hydraulic damping mechanism 21 cushions padded coaming 15 such as rubber and is fixed on the lower support parts 16 that shake side that are positioned at tube 3 bottoms that are filled with water.
Liquid sealing type yielding rubber 26 is by by having hollow bulb and elastomer in the form of a ring constitutes.In addition, liquid sealing type bottom padded coaming 25 constitutes by enclose viscosity hydraulic oil 27 in the hollow bulb of liquid sealing type yielding rubber 26.
Operational circumstances to above-mentioned formation describes below.In dehydration from begin to start the dehydration start-up course till about 300 rev/mins, be flexibly mounted steel ladle unit 5 and go up generation resonance in 6 frees degree (3 axles of direction in space and 3 direction of rotation that center on these) around center of gravity, the mutual commissure of each resonant frequency has produced complicated motion.For example, about 250 rev/mins, generally can produce significantly mode of vibration in (rotary mode up and down) mode of jolting up and down.
Under the occasion that such mode of vibration takes place, being in lower support parts 16 the shaking on above-below direction of shaking side can reduce, but can shake as the direction of arrow B of Fig. 1 and the rotation that is created in bolster 23 and 23a like that (inclination) direction shown in the C and rounded or oval-shaped grinding bar type, perhaps produce the compound of these motions and shake.
Below the operational circumstances and the effect of present embodiment described.
Fig. 2 is the operation chart of the tumbling-box washing machine vibrationproof damper in the embodiment of the invention 1.Below by Fig. 2 the working condition of liquid sealing type yielding rubber 26 and viscosity hydraulic oil 27 is described.
Produce when the arrow B among Fig. 1 or the inclination shown in the C are shaken at the lower support parts 16 (shaking side) that are in steel ladle unit one side, bolster 23 can produce the inclination of representing with the θ angle.At this moment, strain can take place in liquid sealing type yielding rubber 26, and sex change can take place the section configuration of original symmetrical yielding rubber 26, and leftward space 27a becomes different shapes with rightward space 27b.Simultaneously and since inner viscosity hydraulic oil 27 can take place about or go up current downflow, the flow resistance that is produced by the viscosity of hydraulic oil will produce damping effect, make bolster 23 motion in an inclined direction obtain decay, inhibition.
Like this, sufficient damping force can be on direction of rotation, realized, effective effectiveness in vibration suppression can be played for the whirling vibration of steel ladle unit 5 by liquid sealing type yielding rubber 26.
Here, can freely select, set according to the shape of the different viscosity of purpose, liquid sealing type yielding rubber 26, hardness etc. at the direction of rotation of liquid sealing type yielding rubber 26, spring constant and loss coefficient on the translation direction by viscosity hydraulic oil 27.
In addition, when not needing the stable dehydration of damping force in principle (800 rev/mins~1200 rev/mins), in an inclined direction do not produce big shaking and rotatablely moving in the time of can not resembling the dehydration startup on bolster 23 and the 23a, and mainly be the moving up and down shown in Fig. 1 arrow A that vibrationproof damper 20 can play cushioning effect, therefore rely on the damping force of liquid sealing type yielding rubber 26 that the vibration reception and registration rate to washing machine body 8 is not increased substantially.Therefore, (800 rev/mins~1200 rev/mins) were communicated to the vibration on the washing machine body 8 when present embodiment 1 both can suppress normally to dewater, also can when dehydration starting, (0 rev/min~300 rev/mins) suppress the whirling vibration of steel ladle unit 5, thereby realize low vibrationization.
In addition, though in the present embodiment only in the bottom 14 1 sides used liquid sealing type yielding rubber 26, if also adopt such padded coaming 15, can obtain better effect in lower support parts 16 1 sides.
(embodiment 2)
Fig. 3 is the structural representation of the vibrationproof damper 30 in the embodiments of the invention 2.Other component parts of tumbling-box washing machine are identical with the prior art shown in Fig. 6, so no longer for this reason tired at this.
As shown in Figure 3, the vibrationproof damper 30 in the present embodiment comprises: in hydraulic cylinder, enclose hydraulic damping mechanism 31 that hydraulic oil forms and with the ring spring mechanism 32 of hydraulic damping mechanism 31 coaxial settings.Bolster 33 is being fixed in the lower end of hydraulic damping mechanism 31, and the peripheral part of bolster 33 is provided with ring spring mechanism 22, and the padded coaming 35 of the bottom 14 by being arranged to clamp up and down washing machine body 8 is fixed on the bottom 14 of washing machine body 8.In addition, the 2nd bolster 33a in the hydraulic damping mechanism 31 also fixes by the padded coaming 35 of lower support parts 16 of clamping tube 3 bottoms that are filled with water up and down.
The padded coaming 35 here is that loss coefficient is the elastomeric material of tan δ=0.7 ± 0.2.
Operational circumstances and effect to present embodiment 2 with above formation describes below.
At first the reasons are as follows described to the physical significance and the setting of " loss coefficient ".
Loss coefficient tan δ can represent with following formula:
tan δ = 1 τ 2 - 1
Here, τ: the reception and registration rate during resonance (resonance multiplying power)
Loss coefficient is an evaluation index of damping behavior.In general, the ratio that is the G of loss shearing elasticity rate (G ") and storage shearing elasticity rate (G ') "/G ' is called loss tangent (loss coefficient), and represents with tan δ.What loss coefficient was represented is to absorb how many energy (converting heat to) when material deformation, and its mensuration is carried out with the Measurement of Dynamic Viscoelasticity device.Tan δ value is big more, and energy is absorbed many more, and the reverse elasticity rate in the impact buffering test is few more, and it is low more to add the resonance multiplying power that records when shaking test.
As previously described, in up-down vibration mode during above-mentioned dehydration starting, bolster 23 and 23a are rotated (lodging) direction or as the arrow B of Fig. 3 or the circle shown in the C or oval-shaped grinding bar type shakes or these shake compound motion, and not too motion on above-below direction, only depend on original hydraulic damping mechanism 31, be difficult to obtain damping force.
Therefore, bolster 23 by adding after padded coaming 35 fixes, is had very high inside damping effect for the direction of rotation of bolster 23, can guarantee to produce very big damping force, suppress the vibration of steel ladle unit 5 effectively.But, adopting under the occasion of elastomeric material at padded coaming 35, spring constant on direction of rotation and the translation direction and loss coefficient are only just determined by its material and simple shape.In addition, loss coefficient is too big, and the reception and registration rate of washing machine body 8 just can increase, the shortcoming that exists body vibration to be worse off.For this reason, the present inventor has drawn only loss coefficient by experiment.
Fig. 4 is the loss coefficient of vibrationproof damper 30 of the embodiment of the invention 2 and the graph of a relation between each vibration values.Among Fig. 4, what the longitudinal axis in left side was represented is the whirling vibration value of steel ladle unit 5 when dehydrating operations starts, and what the longitudinal axis on right side was represented is the amplitude (vibration values) of washing machine body 8 when dehydration and vibration, and transverse axis is loss coefficient (being attenuation constant).
Loss coefficient (attenuation constant) hour, very low though the whirling vibration of steel ladle unit is very big to the vibration reception and registration rate of washing machine body 8, so the vibration of washing machine body 8 is very little.On the other hand, when loss coefficient becomes big, though the action of steel ladle unit 5 by vibration damping, reduce, the vibration reception and registration rate of washing machine body 8 is increased, the vibration of washing machine body 8 will increase.
By the vibration values of the steel ladle unit 5 among Fig. 4 and the limit of washing machine body 8 vibrations are compared, drawn such conclusion: as preventing that body vibration from worsening the attenuation characteristic of the padded coaming of the whirling vibration that can suppress steel ladle unit 5 again, the optimum range of loss coefficient is tan δ=0.7 ± 0.2.And, on supporting steel ladle unit 5 these structures, be difficult to adopt the very low rubber of hardness.Here, suppose that the inclination angle of steel ladle unit 5 is more than or equal to 45 degree.
In addition, experiment also confirms, under the situation of the padded coaming (external diameter φ is 30mm, and thickness is 10mm) in general tumbling-box washing machine, even profile, thickness change, above-mentioned tendency does not change substantially yet.Like this, (800~1200 rev/mins) are communicated to the vibration of washing machine body in the time of can either being suppressed at normal the dehydration, the whirling vibration of (0~300 rev/min) steel ladle unit 5 in the time of can suppressing dehydration starting again, thus realize low vibrationization.
(embodiment 3)
Fig. 5 A is the partial structurtes schematic diagram of the vibrationproof damper of the tumbling-box washing machine in the embodiment of the invention 3, and is identical among other component parts and embodiment 1 and the embodiment 2, so no longer describe at this.Shown in Fig. 5 A, in the bottom of the bolster 33 of vibrationproof damper, 14 upper and lower is lined with pad 37 in the bottom, is provided with two-layer padded coaming 36 up and down between the pad 37, and these padded coamings 36 are the form that bottom 14 is clamped.
Above-mentioned padded coaming 36 forms dual ring-type, is provided with the 1st padded coaming 36a in the inboard of bolster 33 sides, is provided with the 2nd padded coaming 36b in the outside of first padded coaming, forms the duplex with different loss coefficients or different hardness.In addition, be positioned at the outside the 2nd padded coaming 36b be shaped as the inclined plane 36c that thickness is more little more laterally.
Here, the loss coefficient of Nei Ce the 1st padded coaming 36a is arranged to littler than the loss coefficient of the 2nd padded coaming 36b in the outside.For instance, the 2nd padded coaming 36b in the outside is that the elastomeric material of tan δ=0.7 ± 0.2 constitutes by loss coefficient, and the 1st inboard padded coaming 36a is that the conventional elastomeric material of tan δ=0.1~0.4 constitutes by loss coefficient.By such combination, just very big or be under the occasion that the grinding bar type shakes at bolster 33 rotation amounts (inclinations), the padded coaming 36b with very big loss coefficient in the outside just can have an effect.
Fig. 5 B is the operation chart of the vibrationproof damper in the tumbling-box washing machine in the embodiments of the invention 3.As shown in Figure 5, when the generation tilting shook in the vibration of steel ladle unit, angles take place bolster 33 was the inclination of β.At this moment, if inclined degree surpasses predetermined extent, the outside of pad 37 will be pushed big the 2nd padded coaming 36b that is positioned at the outside of loss coefficient, thereby produce bigger damping effect.
Under the situation of common up-down vibration, the 1st padded coaming 36a that is positioned at the inboard that loss coefficient is little will produce supporting role.Therefore, damping effect is also very little, and the vibration that is delivered to washing machine body 8 also will reduce.
In other words, spring constant on direction of rotation and the translation direction and loss coefficient ratio are easier to adjust.
Like this, (800~1200 rev/mins) are communicated to the vibration on the washing machine body 8 in the time of not only can being suppressed at normal dehydration, and the whirling vibration of (0~300 rev/min) steel ladle unit 5 can suppress dehydration starting the time, thereby can realize low vibrationization.
As mentioned above, by being cushioned padded coaming, fixed by the vibrationproof damper, what padded coaming used is the liquid sealing type yielding rubber, can constitute a kind of like this tumbling-box washing machine, this washing machine can need not under the prerequisite that increases parts, also do not gain in weight, and is communicated to the vibration on the washing machine body when suppressing normal the dehydration.And, take in the whirling vibration that the steel ladle unit 5 of swing roller produces and also can reduce effectively when dehydration starting.
And, owing to the loss coefficient (attenuation coefficient) of padded coaming can be set at optimum value, thereby can obtain a kind of vibration, the padded coaming of the vibration in the time of reducing the stable state dehydration again can suppress dehydration starting the time.
In addition, the present invention also provide a kind of can adapt to dehydration starting the time vibration and the padded coaming of the multiple vibration conditions such as vibration during stable state.
The present invention is applicable in the other machines equipment such as Water Extraction Machinery, centrifugal separator except washing machine too.

Claims (1)

1. tumbling-box washing machine is characterized in that comprising:
The swing roller that rotary middle spindle is on the direction of approximate horizontal, takes in washings and rotatablely move;
Described swing roller is located at its inside, flexiblely is bearing in steel ladle unit in the washing machine body in freely mode of rotation;
Drive the motor of described rotary drum rotating;
The damping unit that described steel ladle unit is carried out elastic bearing, makes its vibration obtain decaying in the bottom;
Be arranged on bolster and the axial ring spring device of described supporting with the coaxial setting of described damping unit;
The lower end of described damping unit is fixed on bottom padded coaming on the described washing machine body bottom; With
The upper end of described damping mechanism is fixed on the top padded coaming of bottom, described steel ladle unit,
Wherein, at least one side in described bottom padded coaming and the top padded coaming is equipped with the liquid sealing type yielding rubber in the outside of described bolster.
CN2008101705305A 2007-10-19 2008-10-17 Drum-type washing machine Expired - Fee Related CN101413199B (en)

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JP2007272129A JP2009095587A (en) 2007-10-19 2007-10-19 Drum-type washing machine
JP2007272129 2007-10-19
JP2007-272129 2007-10-19

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CN101413199B true CN101413199B (en) 2011-04-20

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EP (1) EP2050857B1 (en)
JP (1) JP2009095587A (en)
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JP2009095587A (en) * 2007-10-19 2009-05-07 Panasonic Corp Drum-type washing machine
JP5697682B2 (en) 2009-12-10 2015-04-08 ノベリス・インコーポレイテッドNovelis Inc. Compression rod assembly for molten metal containment structure
JP2012235851A (en) * 2011-05-11 2012-12-06 Sharp Corp Drum-type washing machine
US10161072B2 (en) * 2014-03-11 2018-12-25 Lg Electronics Inc. Laundry treatment apparatus
CN107663740B (en) * 2016-07-28 2020-06-19 青岛海尔洗衣机有限公司 Washing machine damping assembly and washing machine
TWI608141B (en) * 2017-02-18 2017-12-11 Matsushita Electric Taiwan Co Ltd Laundry tank buffer device
CN109423828B (en) * 2017-08-28 2022-08-19 青岛海尔洗衣机有限公司 Vibration damping device for clothes treatment equipment and clothes treatment equipment
CN107675434A (en) * 2017-10-24 2018-02-09 青岛海尔洗衣机有限公司 Vibration damping support device and washing machine
CN110453448B (en) * 2018-05-08 2023-05-12 合肥海尔滚筒洗衣机有限公司 Fixing structure of household electrical appliance electric device
DE102021202353A1 (en) * 2021-03-11 2022-09-15 BSH Hausgeräte GmbH Damping component for a household appliance for the care of laundry items with specific elastic material, and household appliance

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CN101982599B (en) 2012-08-22
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CN201284423Y (en) 2009-08-05
EP2050857B1 (en) 2011-05-25
TWI352144B (en) 2011-11-11
JP2009095587A (en) 2009-05-07
EP2050857A1 (en) 2009-04-22
CN101413199A (en) 2009-04-22
RU2384660C1 (en) 2010-03-20
ATE510950T1 (en) 2011-06-15
DE202008013980U1 (en) 2008-12-24

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