CN1683656A - Damping module of rolling drum washing machine - Google Patents
Damping module of rolling drum washing machine Download PDFInfo
- Publication number
- CN1683656A CN1683656A CN200410018926.XA CN200410018926A CN1683656A CN 1683656 A CN1683656 A CN 1683656A CN 200410018926 A CN200410018926 A CN 200410018926A CN 1683656 A CN1683656 A CN 1683656A
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- CN
- China
- Prior art keywords
- cylinder
- piston
- washing machine
- damper assembly
- damping
- 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.)
- Pending
Links
- 238000005406 washing Methods 0.000 title claims abstract description 90
- 238000013016 damping Methods 0.000 title claims abstract description 44
- 238000005096 rolling process Methods 0.000 title abstract 3
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims description 2
- 239000013536 elastomeric material Substances 0.000 claims description 2
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims 1
- 230000000694 effects Effects 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/08—Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other
- F16F7/09—Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other in dampers of the cylinder-and-piston type
Abstract
The damping module for rolling drum washing machine includes cylinder with one end connected to the washing tub; piston with one movable end set to the lower end of the cylinder and the other end set on the outer casing of the washing machine; and variable damping device set between the cylinder and the piston to alter the friction force between the cylinder and the piston based on the relative motion between the cylinder and the piston so as to reduce the vibration of the washing machine. When the washing tub generates large vibration, the damping module has its variable damping device compressing the damping board for tight contact to the periphery of the piston so raise the friction force and reduce the vibration fast. During dewatering, the rolling drum rotates in high speed and the damping board is recovered to reduce the frication force between the cylinder and the piston and to prevent the HF vibration of washing tub from transmitting to the whole washing machine.
Description
Technical field
The present invention relates to a kind of damper assembly that can change the roller washing machine of frictional force by vibration velocity.
Background technology
Usually, the mode of washing of roller washing machine is that washing agent, washings and water are put in the cylinder, and the driving force by motor makes the cylinder rotation then, thus a kind of mode of utilizing the friction between cylinder and the washings to wash.When washing in this way, washings can be not impaired, can not twine mutually yet, and can well be washed by rubbing with the hands effect.Fig. 1 is the roller washing machine vertical structure cutaway view of prior art.As shown in Figure 1, the roller washing machine of this prior art comprises shell 2, base 2a, washing tank 6, cylinder 7, lifting member 7a and motor 8.Shell 2 forms the external box of microvave of washing machine.Base 2a forms the bottom of shell 2.Washing tank 6 is suspended on the inside of shell 2 by spring 4, and is supported on the base 2a by damper assembly 10.Cylinder 7 rotatably is arranged on the inside of washing tank 6, and can pack in it washings and clothing are to be used for the whole washing process.Lifting member 7a is arranged on the inwall of cylinder 7, and when cylinder 7 rotations, it is dropped after clothing can being promoted.The rear side of washing tank 6 is provided with the motor 8 that links to each other with cylinder 7, to be used for rotary drum 7.The upside of washing tank 6 is provided with water-supply valve assembly 12 and detergent box assembly 14, and it can provide washings and washing agent to washing tank 6.The downside of washing tank 6 is provided with draining valve assembly 16, to be used to discharge the washings in washing tank 6 and the cylinder 7.The upper end of washing tank 6 is suspended on the inboard of shell 2 by spring 4, and the lower end of washing tank 6 then is supported on the base 2a by damper assembly 10.When cylinder 7 rotations, damper assembly 10 can reduce the vibration of washing tank 6.Fig. 2 and Fig. 3 are respectively the damper assembly longitudinal sectional view and the horizontal cross of the roller washing machine of prior art.As Fig. 2, shown in Figure 3, the damper assembly 10 of this prior art is made up of cylinder 10a, piston 10b and damping sheet 10c.Cylinder 10a is hinged on the cylinder stiff end 11a of washing tank 6 lower ends, and piston 10b then is hinged on the piston stiff end 11b above the base 2a.When washing tank 6 vibrations, the end of piston 10b can move to the inside of cylinder 10a.The inwall of cylinder 10a is provided with damping sheet 10c, and it can be to the damping action that moved of piston 10b.Sometimes, for the reaction that makes piston 10b is more flexible, can coat lubricants such as grease on its outer surface.Damping sheet 10c is arranged between cylinder 10a and the piston 10b in compressed mode.Therefore, when the vibration because of washing tank 6 makes between cylinder 10a and piston 10b when producing relative displacement, the vibration of washing tank 6 will weaken by damped plate 10c.That is, the damping sheet 10c on the damper assembly 10 is arranged between cylinder 10a and the piston 10b in compressed mode, therefore has more stable frictional force.But, there are the following problems for the damper assembly of the roller washing machine of this prior art: promptly the washings when cylinder 7 inside carries out can producing excessive vibration when rotating at a high speed with eccentric state, and as mentioned above, because damping sheet 10c is arranged between cylinder 10a and the piston 10b in compressed mode, thereby has more stable frictional force, in this case, damper assembly 10 just can't reduce excessive vibration rapidly.In addition, because the damper assembly of roller washing machine scribbles lubricant at the outer surface of piston 10b.And when dehydration, along with the high speed rotation of cylinder 7, washing tank 6 can produce vibration, and then make between cylinder 10a and the piston 10b back and forth movement that produces overfrequency, thereby the generation heat will cause the frictional force of lubricant to reduce like this, and the result has reduced the vibration damping effect to washing tank 6.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind ofly can change the damper assembly of the roller washing machine of frictional force between the two according to the relative moving speed of cylinder and piston space.
In order to achieve the above object, the damper assembly of roller washing machine provided by the invention comprises: an end is connected the cylinder on the washing tank; One end is arranged on the lower end of cylinder in a movable manner, and the other end is arranged on the piston on the washing machine shell; And be arranged between cylinder and the piston, can change the frictional force of cylinder and piston space according to the relative velocity of cylinder and piston, thereby reduce the damping variset of washing tank vibration.
The damper assembly of roller washing machine provided by the invention is can be with the units of variance of temperature change shape in the inner peripheral surface setting of cylinder, and in the inboard of units of variance damping sheet is set, thereby itself and piston space are in contact with one another and produce friction.When the washings of cylinder inside takes place eccentric and when washing tank produced excessive vibration, because of environment temperature lower, the compressible damping sheet of units of variance, thereby damping sheet is tightly contacted on the outer circumference surface of piston, improving the frictional force between cylinder and the piston, thereby can reduce the vibration of washing tank rapidly.And when dewatering, cylinder is to be rotated at a high speed, temperature around it can raise, at this moment, units of variance is the compression damping plate not, and damping sheet is restored, thereby breaks away from tight contact condition with piston space, so just can reduce the frictional force between cylinder and the piston, thereby can prevent that the dither of washing tank from passing to the whole washing machine by damper assembly, shell and base.
Description of drawings
Be elaborated below in conjunction with the damper assembly of the drawings and specific embodiments to roller washing machine of the present invention.
Fig. 1 is the roller washing machine vertical structure cutaway view of prior art.
Fig. 2 and Fig. 3 are respectively the damper assembly longitudinal sectional view and the horizontal cross of the roller washing machine of prior art.
Fig. 4 and Fig. 5 are respectively the damper assembly longitudinal sectional view and the horizontal cross of roller washing machine of the present invention.
The damper assembly horizontal structure cutaway view of roller washing machine provided by the invention when Fig. 6 a is washing.
The damper assembly horizontal structure cutaway view of roller washing machine provided by the invention when Fig. 6 b is dehydration.
The specific embodiment
As Fig. 4, shown in Figure 5, damper assembly 50 provided by the invention is arranged between the base 2a of washing tank 6 and shell 2 bottoms, and it comprises cylinder 52, piston 54 and damping variset 56.One end of cylinder 52 is arranged on the both sides, bottom of washing tank 6.One end of piston 54 is arranged on the other end of cylinder 52 in a movable manner, and the other end of piston 54 then is arranged on the base 2a.Damping variset 56 is arranged between cylinder 52 and the piston 54, and it can change the frictional force of 54 in cylinder 52 and piston according to the relative velocity of cylinder 52 and piston 54.Can describe with reference to Fig. 1 other structure.One end of cylinder 52 is formed with cylinder stent 52a, and the other end is cylindric.Cylinder stent 52a is hinged on the cylinder stiff end 11a of both sides, washing tank 6 bottom.One end of piston 54 is formed with piston holder 54a, and the other end is to have littler cylindric of lower end diameter than cylinder 52.Piston holder 54a is hinged on the piston stiff end 11b of both sides above the base 2a.Damping variset 56 is made up of damping sheet 56a and units of variance 56b.Damping sheet 56a is made by the spongy rubber elastomeric material, and it is provided with mutually across a certain distance with the inner peripheral surface of cylinder 52.Units of variance 56b is arranged between the outer circumference surface of the inner peripheral surface of cylinder 52 and damping sheet 56a, when cylinder 52 and 54 frictional movement of piston, its shape can change along with the change of temperature, thereby compression or restore damping sheet 56a is adjusted gap between cylinder 52 and the piston 54 with this.In addition, for making piston 10b reaction flexibly, can on its outer circumference surface, coat lubricants such as grease.Units of variance 56b is along the diametric(al) bending fold of cylinder 52 or piston 54 and make by alloy material.When the quickening of the relative moving speed between cylinder 52 and the piston 54 temperature being risen, the shape of units of variance 56b can become straight gradually by song.On the contrary, when temperature was descended, units of variance 56b can be recovered to curved shape when the relative moving speed between cylinder 52 and the piston 54 is slack-off.The highs and lows of units of variance 56b contacts respectively on the outer circumference surface of the inner peripheral surface of cylinder 52 and damping sheet 56a, and has annular shape.When the translational speed of cylinder 52 and piston 54 changed, the temperature of units of variance 56b will change.Consider this point, when designing its shape, should cut its part section open according to the coefficient of thermal expansion of units of variance 56b under maximum temperature and minimum temperature.Certainly, the curved shape of units of variance 56b can be formed in the whole section, also can only be formed in the part section across a certain distance mutually.After the part section of units of variance 56b was cut open, the two ends of units of variance 56b can be in contact with one another or close under the maximum temperature.In addition, units of variance 56b has crooked circular shape, is considering under the situation of coefficient of thermal expansion, can along the circumferential direction be provided with a plurality of between cylinder 52 and damping sheet 56a mutually across a certain distance.The damper assembly course of work of roller washing machine provided by the invention is as follows: at first, under the effect of motor 8, the cylinder 7 that washings is housed begins to be rotated.Lifting member 7a in this moment cylinder 7 drop after can clothing promoting, thereby wash and process such as rinsing.And when cylinder 7 rotated at a high speed, washings can be deviate from from washings under action of centrifugal force, thereby carry out dehydration.Can produce vibration during cylinder 7 rotations, this vibration can pass to washing tank 6.And washing tank 6 under the effect of spring 4 and damper assembly 50 by vibration damping, above-mentioned vibration can not pass to shell 2.Washing or during rinsing, cylinder 7 is with slower speed rotation.At this moment, even the washings of cylinder 7 inside takes place eccentric and make washing tank 6 produce excessive vibration, what cylinder 52 and piston 54 also can be along damper assemblies 50 axially carries out the relative back and forth movement that rubs lentamente.At this moment, the heat that produces between cylinder 52 and the piston 54 is not too large.Therefore, shown in Fig. 6 a, the shape of units of variance 56b remains unchanged.Be the compressible damping sheet 56a of variable parts 56b, the result tightly contacts on the outer circumference surface of piston 54 damping sheet 56a.When damping sheet 56a tightly contacts on the outer circumference surface of piston 54, can improve the frictional force between cylinder 52 and the piston 54, thereby can reduce the excessive vibration of washing tank 6.On the contrary, when dewatering, cylinder 7 is to be rotated at a high speed.At this moment, the vibration frequency of washing tank 6 can be very fast, and cylinder 52 will carry out relative back and forth movement with fast speeds with piston 54.That is, can produce bigger heat between cylinder 52 and the piston 54.Shown in Fig. 6 b, it is straight that the shape of units of variance 56b can become.Therefore, units of variance 56b just can not compression damping plate 56a, thereby damping sheet 56a is restored.54 in damping sheet 56a and piston are broken away from tight contact condition as a result, thereby have reduced the frictional force between cylinder 52 and the piston 54.The dither that so just can prevent washing tank 6 passes to the whole washing machine by damper assembly 50, shell 2 and base 2a.
Claims (6)
1, a kind of damper assembly of roller washing machine is characterized in that: the damper assembly of described roller washing machine (50) comprising: an end is connected the cylinder (52) on the washing tank (6); One end is arranged on the lower end of cylinder (52) in a movable manner, and the other end is arranged on the piston (54) on the washing machine shell (2); And be arranged between cylinder (52) and the piston (54), can change the frictional force between cylinder (52) and piston (54) according to the relative velocity of cylinder (52) and piston (54), thereby reduce the damping variset (56) of washing tank (6) vibration.
2, the damper assembly of roller washing machine according to claim 1 is characterized in that: described damping variset (56) is made up of damping sheet (56a) and units of variance (56b); Damping sheet (56a) is made by the spongy rubber elastomeric material, and it is provided with mutually across a certain distance with the inner peripheral surface of cylinder (52); Units of variance (56b) is arranged between the periphery of the inner peripheral surface of cylinder (52) and damping sheet (56a), when between cylinder (52) and piston (54) during frictional movement, its shape can change along with the change of temperature, thereby compression or restore damping sheet (56a) is adjusted gap between cylinder (52) and the piston (54) with this.
3, the damper assembly of roller washing machine according to claim 2 is characterized in that: described damping sheet (56a) is a spongy rubber.
4, the damper assembly of roller washing machine according to claim 2, it is characterized in that: described units of variance (56b) is that its highs and lows is contacted respectively on the outer circumference surface of the inner peripheral surface of cylinder (52) and damping sheet (56a), thereby it can be along the diametric(al) bending of cylinder (52) or piston (54), and forms annular.
5, the damper assembly of roller washing machine according to claim 4 is characterized in that: described units of variance (56b) is a shape memory alloy material.
6, the damper assembly of roller washing machine according to claim 5 is characterized in that: consider that units of variance (56b) its shape when variations in temperature can become directly, can cut its part section open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410018926.XA CN1683656A (en) | 2004-04-12 | 2004-04-12 | Damping module of rolling drum washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410018926.XA CN1683656A (en) | 2004-04-12 | 2004-04-12 | Damping module of rolling drum washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1683656A true CN1683656A (en) | 2005-10-19 |
Family
ID=35263140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200410018926.XA Pending CN1683656A (en) | 2004-04-12 | 2004-04-12 | Damping module of rolling drum washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1683656A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7870753B2 (en) | 2007-01-04 | 2011-01-18 | Whirlpool Corporation | Appliance door with a service interface |
| CN105570371A (en) * | 2016-02-26 | 2016-05-11 | 吉林大学 | Liquid pressure-regulated and velocity-dependent dry friction shock absorber |
| CN109477277A (en) * | 2016-08-10 | 2019-03-15 | Bsh家用电器有限公司 | Washings handles utensil |
| CN114555974A (en) * | 2019-10-24 | 2022-05-27 | 阿克西斯特姆电子机械贸易股份有限公司 | Improved friction damper for damping vibrations generated by a laundry treating machine |
-
2004
- 2004-04-12 CN CN200410018926.XA patent/CN1683656A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7870753B2 (en) | 2007-01-04 | 2011-01-18 | Whirlpool Corporation | Appliance door with a service interface |
| CN105570371A (en) * | 2016-02-26 | 2016-05-11 | 吉林大学 | Liquid pressure-regulated and velocity-dependent dry friction shock absorber |
| CN109477277A (en) * | 2016-08-10 | 2019-03-15 | Bsh家用电器有限公司 | Washings handles utensil |
| CN109477277B (en) * | 2016-08-10 | 2021-07-27 | Bsh家用电器有限公司 | Washing article treating device |
| CN114555974A (en) * | 2019-10-24 | 2022-05-27 | 阿克西斯特姆电子机械贸易股份有限公司 | Improved friction damper for damping vibrations generated by a laundry treating machine |
| CN114555974B (en) * | 2019-10-24 | 2024-03-12 | 阿克西斯特姆电子机械贸易股份有限公司 | Friction damper and laundry machine |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |