CN102102723B - A kind of fluid damping changing impact damper and the washing machine equipped with this amortisseur - Google Patents
A kind of fluid damping changing impact damper and the washing machine equipped with this amortisseur Download PDFInfo
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- CN102102723B CN102102723B CN201110042695.6A CN201110042695A CN102102723B CN 102102723 B CN102102723 B CN 102102723B CN 201110042695 A CN201110042695 A CN 201110042695A CN 102102723 B CN102102723 B CN 102102723B
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- resisting medium
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- 238000005406 washing Methods 0.000 title claims abstract description 51
- 239000012530 fluid Substances 0.000 title claims abstract description 37
- 230000035939 shock Effects 0.000 claims abstract description 15
- 239000006096 absorbing agent Substances 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000003570 air Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 235000014593 oils and fats Nutrition 0.000 claims description 3
- 230000003111 delayed Effects 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 description 7
- 230000001276 controlling effect Effects 0.000 description 6
- 230000000875 corresponding Effects 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000003139 buffering Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M buffer Substances [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000000994 depressed Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000004900 laundering Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000002093 peripheral Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Abstract
The invention discloses a kind of fluid damping changing impact damper, including: the shock absorber cylinder being made up of damping cavity and cushion chamber；Insert the piston rod in cylinder；Being fixedly installed on the piston on damping cavity piston rod, cushion chamber communicates with the external world；Damping cavity, built with resisting medium, is provided with the fluid passage being available for resisting medium circulation in piston.Two groups of check valves that the contrary quantity of this amortisseur setting direction on piston does not waits, amortisseur is when different directions moves, one group of check valve in the same direction can only be kept to open, and the throttling action utilizing check valve that difference flows to resisting medium makes amortisseur produce different damping in reciprocating motion.More particularly, the amortisseur of the present invention can also be in undamped state when altofrequency shakes, and significantly reduces the resonance of washing machine shell when washing machine runs up, and is more beneficial for maintaining stablizing of washing machine, protects washing machine.Present configuration is simple, and effect is notable, suitably promotes the use of.
Description
Technical field
The present invention relates to a kind of amortisseur, particularly to a kind of fluid damping changing impact damper and the laundry equipped with this amortisseur
Machine.
Background technology
Existing tumbling-box washing machine includes the shell forming outward appearance；It is arranged on this shell interior for depositing slurry
Washing tub；In being rotatably provided on this washing tub and for medicated clothing being washed and the cylinder of dehydrating operations；Arrange
After this washing tub and be connected to the driving motor of rotary shaft of cylinder.The Men Kexuan put the laundry into by it or take out
It is arranged on the front surface of shell with turning, and is arranged on after washing tub for supporting the shaft support that turns of cylinder.Spring exists
The top of washing tub is fixed on shell, and the amortisseur being used for the vibration that decay is delivered to washing tub by cylinder is arranged on washing tub
Bottom.
Fig. 1 is the longitudinal sectional view of the amortisseur illustrating the tumbling-box washing machine according to prior art.As it can be seen, it is existing
Amortisseur 20 include being fixed on shell 11 and there is the cylinder 21 accommodating part 21a；It is fixed on washing tub 12 and is arranged to insert
Enter receiving part 21a of this cylinder 21 or from its separate rod-like element 22；And it is connected to the external peripheral surface of this rod-like element 22
And the damping piece 23 contacted with the friction surface 21b of this cylinder 21.
The work of existing amortisseur is described below.
When washing operation, owing to being passed to the vibration of washing tub by cylinder, rod-like element 22 is downwardly applied to power.At this moment, resistance
Damping member 23 contacts with the friction surface 21b of cylinder 21, therefore produces frictional force, so rod-like element 22 gradually moves thus the biography that decays
It is delivered to the vibration of washing tub.Be delivered to the vibration of washing tub 12 to decay, amortisseur 23 must have and is configured with enough
Frictional force.But, in the amortisseur of existing tumbling-box washing machine, time under Actual laundering operates at normal dehydrating operations
The Oscillation Amplitude produced when operating with excessive dehydration is the most different, thus is effectively decaying shaking significantly and by a small margin
It is restricted time dynamic.In the amortisseur of existing tumbling-box washing machine, the frictional force of vibration damping in all of time is substantially
Constant, it is impossible to realize change and the adjustment of damping, because damping constant in Wang Fuyundonging, make the damping force can not be no too greatly
Then can pull washing machine shell motion, it is impossible to significantly absorb the energy of vibrations.Urceolus is excessive to bottom offset simultaneously, can cause again bullet
Spring pulling force strengthens, the increase of boosting vibrations.
One skilled in the art will appreciate that when amortisseur moves downward it is to need to strengthen damping, to eliminate amplitude, reduce
Pendulum spring can be passed by the lower margin of washing machine shell because of the bigger pulling force of the excessive generation of displacement, the damping moving downward increasing
Being delivered to ground, increase the frictional force of lower margin and ground simultaneously, this damp type is of value to machine even running, can increase.
And amortisseur is when moving upward, then needs to reduce damping and prevent the urceolus in vibrations from pullling washing machine shell vibrations.Simultaneously as
Downward damping strengthens, and displacement reduces, and spring tension is the least, can produce less displacement, subtract when outer barrel assembly moves upward
The shock-absorbing process of shake device mainly completes when descending.So that machine runs more smoothly.
In view of this, the special proposition present invention.
Summary of the invention
The first object of the present invention is to provide a kind of fluid damping changing impact damper, for realizing goal of the invention, uses as follows
Technical scheme:
A kind of fluid damping changing impact damper, including: the shock absorber cylinder being made up of damping cavity and cushion chamber；In insertion cylinder
Piston rod；Being fixedly installed on the piston on damping cavity inner piston rod, described cushion chamber communicates with the external world；Described damping cavity
Built with resisting medium, being provided with the fluid passage being available for resisting medium circulation in piston, described amortisseur is by being arranged on work
Check valve beyond the Great Wall controls the switch of fluid passage, utilizes check valve that the throttling action of resisting medium realizes amortisseur damping
Change.
Described check valve include quantity in opposite direction not wait two groups of check valves, amortisseur toward different directions move time,
One group of check valve in the same direction can only be kept to open, and the throttling action utilizing check valve that difference flows to resisting medium makes amortisseur exist
Reciprocating motion produces different damping.
Described shock absorber cylinder by one slidably dividing plate be separated into damping cavity and cushion chamber, described piston is arranged on
The free end of piston rod, is provided with a spring in cushion chamber, utilize spring the active force of dividing plate is changed cushion chamber volume and then
The change of the damping cavity volume that buffering is caused by vibrations.
Described shock absorber cylinder by be fixed on cylinder lateral wall and overlap dividing plate circle on the piston rod be separated into damping cavity with
Cushion chamber, the free end of piston rod stretches in cushion chamber, and the distance of this free end to piston is more than or equal to the height of damping cavity；
Or it is highly preferred that between described dividing plate circle and piston, also set up a set of spring on the piston rod.
Described shock absorber cylinder is by damping cavity housing and is set in outside damping cavity shell end slidably cushion chamber shell
Body forms, and forms cushion chamber between damping cavity shell end and cushion chamber housing；Set between cushion chamber housing and damping cavity housing
There is damping block；The free end of piston rod stretches in cushion chamber, and the distance of this free end to piston is more than or equal to the height of damping cavity
Degree；Or it is highly preferred that between described dividing plate circle and piston, also set up a set of spring on the piston rod.
Described resisting medium is air or oils and fats or water.
It is provided with sealing ring between described cylinder and piston rod.
Described check valve is ball valve, piston valve.
Amortisseur of the prior art is commonly reciprocating motion constant damping, although it can play certain damping and make
With, but for the amortisseur of some special-purpose, need to strengthen damping at specific direction, the most then need to control
Damping.Such as use in washing machine amortisseur, owing to, in washing machine running, the cylinder of amortisseur does linear fortune up and down along piston rod
Dynamic.It is to need to strengthen damping when amortisseur moves downward, to eliminate amplitude, reduces pendulum spring because of the excessive generation of displacement relatively
Big pulling force, the damping moving downward increasing can be delivered to ground by the lower margin of washing machine shell, simultaneously increase lower margin with
The frictional force on ground, this damp type is of value to machine even running, can increase.Simultaneously as downward damping strengthens,
Displacement reduces, and spring tension is the least.The shock-absorbing process of amortisseur mainly completes when descending, makes machine more by increasing damping
Add operation smoothly.And amortisseur is when moving upward, then needs to reduce damping and prevent the urceolus in vibrations from pullling washing machine shell
Vibrations.Therefore, existing amortisseur cannot meet specific demand.
The present invention protects a kind of fluid damping changing impact damper, and this amortisseur includes: by subtracting that damping cavity and cushion chamber form
Shake device cylinder；Insert the piston rod in cylinder；Being fixedly installed on the piston on damping cavity piston rod, described cushion chamber is with extraneous
Communicate；Described damping cavity, built with resisting medium, is provided with the fluid passage being available for resisting medium circulation in piston, described subtracts
Shake device controls the switch of fluid passage by the check valve being arranged on piston, utilizes the check valve throttling action to resisting medium
Realize the change of amortisseur damping.
In the present invention, damping cavity is divided into upper room and lower room by piston.Be provided with in piston be available for resisting medium circulation fluid lead to
Road, this fluid passage need not in specific structure, can circulate i.e. from piston the most smoothly as long as meeting resisting medium
Can.Preferably internal piston is hollow-core construction, arranges several in the side of piston and is available for the free flow opening that circulates, at piston
Opposite side the corresponding contrary quantity of position setting direction not wait two groups of check valves, piston rod to different directions move
Time, one group of check valve in the same direction can only be kept to open, utilize check valve the most in the same direction that the throttling action that resisting medium is different is made
Piston rod produces different damping in reciprocating motion.Additionally, check valve is not limited solely to the embodiment that homonymy is arranged, it is possible to
So that check valve the most in the same direction to be arranged on the both sides of piston, adapt is also arranged the opening being available for resisting medium free flow
In both sides, what those skilled in the art combined concrete condition adjustable check valve and opening arranges position.Due to rightabout
Check valve quantity, therefore, amortisseur just can produce different size of damping when different directions moves, utilizes check valve pair
The throttling action of resisting medium realizes the mutative damp function of amortisseur.And when amortisseur is in altofrequency vibrations, all of list
Cannot close under effect of inertia to valve and therefore be in open mode, the fluid passage in piston remains unimpeded, damping
Medium can free flow, amortisseur is in undamped state.It should be noted that in the present invention, amortisseur shakes in altofrequency
Time, system is not truly realized undamped perfect condition, simply infinite approach undamped, meanwhile, check valve on piston
Quantity is the most, and the circulation of resisting medium is the most unimpeded more can make amortisseur be in undamped state.
" resisting medium " in the present invention is air or oils and fats or water, but be not limited to that aforesaid way, prior art
In any free flowable resisting medium can serve as the resisting medium in the present invention.
More specifically, the amortisseur of the present invention mainly includes three kinds of embodiments:
Scheme one: as in figure 2 it is shown, shock absorber cylinder by one slidably dividing plate be separated into damping cavity and cushion chamber, piston
Being arranged on the free end of piston rod, owing to during vibrations, amortisseur pumps, piston rod length in cylinder becomes
Changing and cause cylinder internal volume generation respective change, resisting medium cannot circulate in damping cavity.In view of this, inventor is at cushion chamber
Inside arranging a spring, the two ends of spring are separately fixed at dividing plate and the end of buffering cavity shell, utilize spring to act on dividing plate
Elastic force changes the volume of cushion chamber and then buffers the change of the damping cavity volume caused by vibrations.Specifically such as Fig. 2, quiet with amortisseur
State time only is reference, and when vibrations occur amortisseur to move downward, piston rod stretches into the partial variable-length in damping cavity, damping
The volume in chamber the most just diminishes, and now the elastic force of spring pulls dividing plate to move upward, and carrys out phase by reducing the volume of cushion chamber
Adaptively increasing the volume of damping cavity, the volume that cushion chamber reduces stretches into the body of part piston rod in damping cavity when being vibrations
Long-pending, thus maintain the constant of damping cavity volume.When vibrations occur amortisseur to move upward, piston rod length in damping cavity
Shortening, the volume of damping cavity relatively increases, and now spring promotes dividing plate to move downward, and carrys out phase by increasing the volume of cushion chamber
The volume change that adaptively balance damping cavity is caused owing to piston rod moves, maintains the constant of damping cavity volume.Additionally, this delays
Rush chamber and the damping of amortisseur is not produced impact.During vibrations, utilize the check valve throttling action to resisting medium on piston
Realize the damping change in moving back and forth.
Scheme two: as it is shown on figure 3, shock absorber cylinder is by being fixed on cylinder lateral wall and overlapping dividing plate circle separation on the piston rod
Becoming damping cavity and cushion chamber, the free end of piston rod stretches in cushion chamber, and the distance of this free end to piston is more than or equal to resistance
The height in Buddhist nun chamber.To ensure no matter amortisseur up moves or down moves, the length of damping cavity inner piston rod when vibrations occur
Degree and be invariable, therefore, it is possible to maintain the constant volume in damping cavity.Distance due to piston rod free end to piston
More than or equal to the height of damping cavity, even if piston is depressed into the bottommost of damping cavity during Zhen Dong, still can keep alive
The free end of stopper rod in surge chamber or with dividing plate circle same level, thus maintain damping cavity internal volume constant.During vibrations, profit
With check valve on piston, the throttling action of resisting medium is realized the damping in moving back and forth to convert.
As a kind of optimal way of the program, the present invention is enclosed within also setting up one between described dividing plate circle and piston
Spring on piston rod, the two ends of spring are separately fixed on dividing plate circle and piston.When amortisseur stress is excessive or at washing machine
When resting state, this spring can alleviate the pulling force hanging spring, it is to avoid piston directly withstands on dividing plate circle, is simultaneously also beneficial to subtract
The reciprocating motion of shake device.
Scheme 3, as shown in Figure 4, shock absorber cylinder is by damping cavity housing and is set in outside damping cavity shell end slidably
Cushion chamber housing composition, between damping cavity shell end and cushion chamber housing formed cushion chamber；Cushion chamber housing and damping cavity
Damping block it is provided with between housing；The free end of piston rod stretches in cushion chamber, and the distance of this free end to piston is more than or equal to
The height of damping cavity.
When vibrations occur amortisseur to move downward, cushion chamber housing moves downward, and utilizes cushion chamber housing and damping cavity
The frictional force that between housing, damping block produces, promotes damping cavity housing to move downwardly together, owing to damping indoor on Buddhist nun chamber is situated between
Matter cannot be flowed out by a small amount of check valve at short notice, now goes up indoor resisting medium and can produce bigger pressure, damping cavity
The damping force moved downward strengthens accordingly；When damping force is large enough to the frictional force overcoming damping block to produce, cushion chamber housing
Will produce relative motion with damping cavity housing, damping force now reaches maximum, is the damping force that damping block produces.When
When cushion chamber housing moves upward, the frictional force that available damping block produces promotes damping cavity housing to move upwardly together, due to
Resisting medium indoor under damping cavity cannot by check valve outflow, (the check valve quantity owing to flowing to upward be many at short notice
In flowing to check valve down, therefore, resistance herein is little when moving downward compared with cushion chamber housing), this indoor damping at present is situated between
Matter can produce certain pressure equally.When damping force is large enough to the frictional force overcoming damping block to produce, cushion chamber housing is just
Can produce relative motion with damping cavity housing, damping force now reaches maximum, is the damping force that damping block produces.
Owing to the distance of free end to piston is more than or equal to the height of damping cavity, therefore when vibrations occur, no matter subtract
Shake device up moves or down moves, and the length of damping cavity inner piston rod and be invariable, in the most just maintaining damping cavity
Constant volume.During vibrations, utilize check valve on piston that the throttling action of resisting medium is realized the resistance in moving back and forth
Buddhist nun changes.
During high-frequency vibration, all of check valve is in open mode under effect of inertia, resisting medium can free flow,
Piston damping force in damping cavity becomes the least, and damping block produce frictional force will not change, due to damping cavity housing without
Method overcomes the frictional force that damping block produces, therefore geo-stationary between cushion chamber housing and damping block.During high-frequency vibration, amortisseur
Equally realize undamped state.
Time washing machine is idle, shock absorber cylinder follows washing machine outer barrel assembly, and the damping in damping cavity is situated between
Matter can all flow in cavity of resorption, and now piston is adjacent to and promotes damping cavity housing upwards with the upper end of damping cavity, with cushion chamber
Housing produces frictional force.
In the present invention, the structure of damping block can be according to the range of movement of moving component in actual application and damping force size
Specific design, this be designed as familiar to those skilled in the art.
As a kind of optimal way of the program, the present invention also sets up one between described dividing plate circle and piston and is enclosed within work
Spring on stopper rod, the two ends of spring are separately fixed on dividing plate circle and piston.When amortisseur stress is excessive or washing machine is in
During resting state, this spring can alleviate the pulling force hanging spring, it is to avoid piston directly withstands on dividing plate circle, is simultaneously also beneficial to damping
The reciprocating motion of device.
In order to ensure the sealing between cylinder and piston rod, it is ensured that the resisting medium in cylinder does not oozes out in cylinder, at cylinder
Arranging sealing ring between body and piston rod, the selection of this sealing ring is familiar to the person skilled in the art, it is readily appreciated that and realize.This
Outward, in scheme three, between piston and damping cavity housing, it also is provided with sealing ring.
Check valve in the present invention refers to the valve flowing to require, belongs to a kind of automatic valve, and its Main Function is anti-
Only medium flows backwards；Only just can open toward the flowing of specific one direction at resisting medium, be the stream of tube road medium itself
The raw power of movable property opens and closes automatically, such as Fig. 2, the ball valve as shown in 3, piston valve.Check valve can use in prior art
Any one is capable of the one-way valve structures of the present invention, and those skilled in the art often combine the specialty of self as the case may be
Knowledge can be chosen.
The second object of the present invention is to provide a kind of washing machine equipped with amortisseur described above, the following skill of concrete employing
Art scheme:
A kind of washing machine equipped with above-mentioned amortisseur.
Control the check valve quantity flowed to down on piston and be less than the check valve quantity flowed to upward, when amortisseur is by downwards
During motion (now cylinder opposing pistons bar moves downward), under resisting medium is flowed into by upper room by check valve with bigger resistance
Room, produces bigger damping；When amortisseur moves upward, resisting medium is flowed by lower room by more check valve with less resistance
Enter upper room, produce smaller resistance；When amortisseur is in altofrequency vibrations, two groups of check valves are opened under effect of inertia simultaneously,
Amortisseur is in undamped state.
The described resisting medium that controls flows to check valve upward and controls between the check valve that resisting medium flows to down
Quantity ratio is 1 ＜ k≤4, such as 4: 1,4: 3,5: 3 etc..
The described resisting medium that controls flows to check valve upward and controls between the check valve that resisting medium flows to down
Quantity ratio is 1.5≤k≤3, such as 10: 4,5: 2,6: 3,3: 1 etc..
The described resisting medium that controls flows to check valve upward and controls between the check valve that resisting medium flows to down
Quantity is 2 than k, such as 4: 2,2: 1.
Washing machine claimed in the present invention is equipped with above-mentioned amortisseur.One skilled in the art will appreciate that and work as washing machine
Being to need to strengthen damping when amortisseur moves downward, to eliminate amplitude, reduction pendulum spring is bigger because of the excessive generation of displacement
Pulling force, the damping moving downward increasing can be delivered to ground by the lower margin of washing machine shell, increases lower margin and ground simultaneously
Frictional force, this damp type is of value to machine even running, can increase.Simultaneously as downward damping strengthens, displacement
Reducing, spring tension is the least.The shock-absorbing process of amortisseur mainly completes when descending, makes machine more flat by increasing damping
Steady operation.And amortisseur is when moving upward, then needs to reduce damping and prevent the urceolus in vibrations from pullling washing machine shell vibrations.
Therefore, the present invention in fluid damping changing impact damper setup control resisting medium from room flow under the check valve quantity of room be less than
Control resisting medium and flow to the check valve of upper room from lower room, as in figure 2 it is shown, controlling the check valve flowed to down is 1, control stream
It it is 2 to check valve upward.Therefore, when amortisseur down moves, in damping cavity, the resisting medium in room is by piston
Extruding, makes resisting medium flow to room damping cavity from only 1 check valve with bigger resistance, and the damping of amortisseur increases；
When amortisseur up moves, under damping cavity, the resisting medium in room is extruded by piston, make resisting medium pass through 2 unidirectional
Valve flows to room in damping cavity with less resistance, and relative decreases damping.And when amortisseur is in altofrequency vibrations, 3
Check valve is opened under effect of inertia simultaneously, and the fluid passage in piston remains unimpeded, resisting medium can free flow, subtract
Shake device is in undamped state.
The quantity of check valve has been done further research by the present invention, in order to the amplitude making amortisseur damping adjusting is big, sends out
A person of good sense finally thinks after substantial amounts of experiment, flows to court when controlling resisting medium flow direction check valve upward with controlling resisting medium
Under check valve between quantity ratio when being 1 ＜ k≤4, more significantly mutative damp effect, preferably 1.5≤k≤3 can be obtained, more
Preferably k is 2.The check valve flowed to upward as controlled resisting medium is 2 or 4, and the corresponding resisting medium that controls flows to down
Check valve be 1 or 2, more preferably mutative damp effect can be reached.
Using technique scheme, the present invention is compared with the advantage of prior art: the structure letter of fluid damping changing impact damper
Single, but the size of damping can be changed targetedly according to shock attenuation needs, fluid damping changing impact damper of the present invention is preferred for
Washing machine, but it is not limited to washing machine, it is also possible to being applicable to other needs the direction of motion difference according to piston to obtain difference
In the structure of damping, the work system back and forth shaken such as piston-mode motor, air compressor, ramming machine etc., more particularly, this
The amortisseur of invention can also be in undamped state when altofrequency shakes, and significantly reduces washing machine when washing machine runs up
The resonance of shell, is more beneficial for maintaining stablizing of washing machine, protects washing machine.Present configuration is simple, and effect is notable, suitably pushes away
Wide use.
Accompanying drawing explanation
The longitudinal sectional view of the amortisseur of Fig. 1 prior art tumbling-box washing machine
The longitudinal sectional view of Fig. 2 fluid of the present invention damping changing impact damper
The longitudinal sectional view of Fig. 3 fluid of the present invention damping changing impact damper
The longitudinal sectional view of Fig. 4 fluid of the present invention damping changing impact damper
The longitudinal sectional view of Fig. 5 fluid of the present invention damping changing impact damper
Main element explanation
1 cylinder 2 cushion chamber 3 damping cavity 4 piston rod 5 piston 6 check valve 7 sealing ring 8 dividing plate circle 9
Dividing plate 10 spring 11 cushion chamber housing 12 damping cavity housing 13 damping block 14 spring
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in more detail.
Embodiment 1
Fluid damping changing impact damper as shown in Figure 2, this amortisseur includes: the damping being made up of damping cavity 3 and cushion chamber 2
Device cylinder 1；Insert the piston rod 4 in cylinder 1；The piston 5 being fixedly installed on damping cavity piston rod 4, be provided with in cushion chamber 2 with
The through hole that the external world communicates；Damping cavity 3, built with water, is provided with in piston 5 and is available for the fluid passage that current are logical.Amortisseur is by arranging
Check valve 6 on piston 5 controls the switch of fluid passage, utilizes check valve 6 that the throttling action of water realizes amortisseur damping
Change.
Shock absorber cylinder 1 by one slidably dividing plate 9 be separated into damping cavity 3 and cushion chamber 2, piston 5 is arranged on piston rod 4
Free end.One spring 10 is set in cushion chamber 2, utilize spring 10 active force of dividing plate 9 is changed cushion chamber 2 volume and then
The change of damping cavity 3 volume that buffering is caused by vibrations.
Damping cavity 3 is divided into upper room and lower room by piston 5.Piston 5 is provided with the ball valve that two prescriptions do not wait to contrary quantity, wherein
Controlling the ball valve of (from upper room to lower room) under current direction is 1, and the ball valve controlled on current direction is 2.When amortisseur is down transported
Time dynamic, in damping cavity, the water in room is by the extruding of piston 5, flows to damping cavity with bigger resistance from only 1 ball valve
Room.The damping of amortisseur increases；When amortisseur moves upward, under damping cavity, the water in room is by the extruding of piston 5, by 2
Individual ball valve flows to room in damping cavity with less resistance, and relative decreases damping.And when amortisseur is in altofrequency vibrations,
3 ball valves are opened under effect of inertia simultaneously, and the fluid passage in piston 5 remains unimpeded, water can free flow, amortisseur
It is in undamped state.
Embodiment 2
Fluid damping changing impact damper as shown in Figure 3, this amortisseur includes: the damping being made up of damping cavity 3 and cushion chamber 2
Device cylinder 1；Insert the piston rod 4 in cylinder 1；The piston 5 being fixedly installed on damping cavity piston rod 4, be provided with in cushion chamber 2 with
The through hole that the external world communicates；Damping cavity 3 is built with oil, and being provided with in piston 5 can the fluid passage of fuel feeding circulation.Amortisseur is by arranging
Check valve 6 on piston 5 controls the switch of fluid passage, utilizes check valve 6 that the throttling action of oil realizes amortisseur damping
Change.
Shock absorber cylinder 1 is by being fixed on cylinder 1 sidewall and the dividing plate circle 8 that is enclosed within piston rod 4 is separated into damping cavity 3 with slow
Rushing chamber 2, the free end of piston rod 4 stretches in cushion chamber 2, and the distance of this free end to piston 5 is more than or equal to the height of damping cavity 3
Degree.To ensure no matter amortisseur up moves or down moves, the length of damping cavity 3 inner piston rod 4 and be when vibrations occur
Invariable, therefore, it is possible to maintain the constant volume in damping cavity 3.
Damping cavity 3 is divided into upper room and lower room by piston 5.Piston 5 is provided with the ball valve that two prescriptions do not wait to contrary quantity, wherein
The ball valve controlling liquid stream (from upper room to lower room) downwards is 1, and controlling liquid stream ball valve upwards is 2.When amortisseur is down transported
Time dynamic, in damping cavity, the oil in room is by the extruding of piston 5, flows to damping cavity with bigger resistance from only 1 ball valve
Room.The damping of amortisseur increases；When amortisseur moves upward, under damping cavity, the oil in room is by the extruding of piston 5, by 2
Individual ball valve flows to room in damping cavity with less resistance, and relative decreases damping.And when amortisseur is in altofrequency vibrations,
3 ball valves are opened under effect of inertia simultaneously, and the fluid passage in piston 5 remains unimpeded, oil can free flow, amortisseur
It is in undamped state.
Embodiment 3
Fluid damping changing impact damper as shown in Figure 4, this amortisseur includes: the damping being made up of damping cavity 3 and cushion chamber 2
Device cylinder 1；Insert the piston rod 4 in cylinder 1；The piston 5 being fixedly installed on damping cavity piston rod 4, be provided with in cushion chamber 2 with
The through hole that the external world communicates；Damping cavity 3, built with resisting medium, is provided with the fluid passage being available for resisting medium circulation in piston 5.Subtract
Shake device controls the switch of fluid passage by the check valve 6 being arranged on piston 5, utilizes the check valve 6 throttling to resisting medium
Effect realizes the change of amortisseur damping.
Shock absorber cylinder 1 is by damping cavity housing 12 and is set in outside damping cavity housing 12 end slidably cushion chamber housing
11 compositions, form cushion chamber 2 between damping cavity housing 12 end and cushion chamber housing 11；Cushion chamber housing 11 and damping cavity housing
Damping block 13 it is provided with between 12；The free end of piston rod 4 stretches in cushion chamber 2, the distance of this free end to piston 5 more than or etc.
Height in damping cavity 3.
It is provided with sealing ring between piston 5 and damping cavity housing 12 and between damping cavity housing 12 and piston rod 4.
When vibrations occur amortisseur to move downward, cushion chamber housing 11 moves downward, and utilizes cushion chamber housing 11 and resistance
The frictional force that between Buddhist nun's cavity shell 12, damping block 13 produces, promotes damping cavity housing 12 to move downwardly together, due in damping cavity
Indoor resisting medium cannot be flowed out by a small amount of check valve at short notice, now goes up indoor resisting medium and can produce bigger
Pressure, the damping force that damping cavity 3 moves downward strengthens accordingly；When damping force is large enough to the frictional force that overcomes damping block 13 to produce
Time, cushion chamber housing 11 will produce relative motion with damping cavity housing 12, and damping force now reaches maximum, is damping
The damping force that block 13 produces.When cushion chamber housing 11 moves upward, the frictional force that available damping block 13 produces promotes damping
Cavity shell 12 moves upwardly together, owing to resisting medium indoor under damping cavity cannot be flowed out by check valve 6 at short notice
(owing to the check valve quantity flowed to upward is more than the check valve flowed to down, therefore, resistance herein is downward compared with cushion chamber housing
During motion little), this at present indoor resisting medium can produce certain pressure equally.When damping force is large enough to overcome damping block 13
During the frictional force produced, cushion chamber housing 11 will produce relative motion with damping cavity housing 12, and damping force now reaches
Big value, is the damping force that damping block produces.
During high-frequency vibration, all of check valve 6 is in open mode under effect of inertia, and resisting medium can freely flow
Logical, the piston 5 damping force in damping cavity 3 becomes the least, and the frictional force that damping block 13 produces will not change, due to damping cavity
Housing 12 cannot overcome the frictional force that damping block 13 produces, therefore geo-stationary between cushion chamber housing 11 and damping block 13.High
During frequency vibrations, amortisseur equally realizes undamped state.
Embodiment 4-6
Equipped with the washing machine of amortisseur as described in Example 1, compared with Example 1, amortisseur differ only in piston 5
It is 4,4,5 that upper control resisting medium flows to check valve 6 upward, corresponding control that resisting medium flows to down unidirectional
Valve 6 is 1,3,3.
Embodiment 7-9
Equipped with the washing machine of amortisseur as described in Example 2, compared with Example 2, amortisseur differ only in piston 5
The check valve 6 that upper control resisting medium flows to upward is respectively 10,5,6, and the corresponding resisting medium that controls flows to down
Check valve 6 be 4,2,3.
Embodiment 10-12
Equipped with the washing machine of amortisseur as described in Example 3, compared with Example 3, amortisseur differ only in piston 5
The check valve 6 that upper control resisting medium flows to upward is respectively 3,4,2, and the corresponding resisting medium that controls flows to down
Check valve 6 is 1,2,1.
Embodiment 13
As it is shown in figure 5, the present embodiment is compared with Example 2, distinctive points is only that: also set between dividing plate circle 8 and piston 5
Putting a set of spring 14 on the piston rod, the two ends of spring are separately fixed on dividing plate circle 8 and piston 5.
Embodiment 14
Compared with Example 3, distinctive points is only that the present embodiment: also sets up one between dividing plate circle 8 and piston 5 and is enclosed within work
Spring 14 (not indicating in figure) on stopper rod, the two ends of spring are separately fixed on dividing plate circle 8 and piston 5.
Embodiment in above-described embodiment can be further combined or replace, and embodiment is only to the present invention's
Preferred embodiment is described, and is not defined the spirit and scope of the present invention, without departing from design philosophy of the present invention
Under premise, the various changes and modifications that in this area, technical scheme is made by professional and technical personnel, belong to this
Bright protection domain.
Claims (7)
1. a fluid damping changing impact damper, including: the shock absorber cylinder being made up of damping cavity and cushion chamber；Insert in cylinder
Piston rod；It is fixedly installed on the piston on damping cavity inner piston rod, it is characterised in that: described cushion chamber communicates with the external world；Institute
The damping cavity stated, built with resisting medium, is provided with the fluid passage being available for resisting medium circulation in piston, described amortisseur leads to
Cross the check valve being arranged on piston and control the switch of fluid passage, utilize check valve to realize subtracting to the throttling action of resisting medium
The change of shake device damping, described shock absorber cylinder is slidably delayed by damping cavity housing and being set in outside damping cavity shell end
Rush cavity shell composition, between damping cavity shell end and cushion chamber housing, form cushion chamber；Cushion chamber housing and damping cavity housing
Between be provided with damping block；The free end of piston rod stretches in cushion chamber, and the distance of this free end to piston is more than or equal to damping
The height in chamber.
Amortisseur the most according to claim 1, it is characterised in that: described check valve includes what quantity in opposite direction did not waited
Two groups of check valves, amortisseur toward different directions move time, one group of check valve in the same direction can only be kept to open, utilize check valve to not
Amortisseur is made to produce different damping in reciprocating motion with the throttling action flowing to resisting medium.
Amortisseur the most according to claim 1 and 2, it is characterised in that: described resisting medium is air or oils and fats or water.
Amortisseur the most according to claim 1 and 2, it is characterised in that: it is provided with sealing between described cylinder and piston rod
Circle.
Amortisseur the most according to claim 1 and 2, it is characterised in that: described check valve is ball valve, piston valve.
6. one kind equipped with the washing machine of amortisseur as described in any one of claim 1-5.
Washing machine the most according to claim 6, it is characterised in that: control the check valve quantity flowed to down on piston and be less than
Flowing to check valve quantity upward, when amortisseur down moves, resisting medium passes through check valve by upper room with bigger resistance
Flow into lower room, produce bigger damping；When amortisseur up moves, resisting medium with less resistance by more check valve by
Lower room flows into upper room, produces less damping；When amortisseur is in altofrequency vibrations, the while that two groups of check valves being under effect of inertia
Opening, amortisseur is in undamped state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110042695.6A CN102102723B (en) | 2011-02-21 | A kind of fluid damping changing impact damper and the washing machine equipped with this amortisseur |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110042695.6A CN102102723B (en) | 2011-02-21 | A kind of fluid damping changing impact damper and the washing machine equipped with this amortisseur |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102102723A CN102102723A (en) | 2011-06-22 |
| CN102102723B true CN102102723B (en) | 2016-12-14 |
Family
ID=
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE705634C (en) * | 1938-09-23 | 1941-05-05 | Boge & Sohn G M B H | Fluid shock absorbers for motor vehicles with piston that can move up and down within a cylinder |
| US2856035A (en) * | 1952-11-12 | 1958-10-14 | Applic Mach Motrices | Hydraulic shock absorber |
| US5207081A (en) * | 1990-11-19 | 1993-05-04 | Kabushiki Kaisha Showa Seisakusho | Vibration damper assembly |
| CN2806880Y (en) * | 2005-07-13 | 2006-08-16 | 宁波杉工结构监测与控制工程中心有限公司 | Double-rod clearance type damping liquid and spring composite vibration damper |
| CN201133440Y (en) * | 2007-11-30 | 2008-10-15 | 北京金自天和缓冲技术有限公司 | Elastic colloid buffer |
| CN101975240A (en) * | 2010-10-25 | 2011-02-16 | 重庆瑞翱机电设备有限公司 | Automatic variable damping rear shock absorber of motorcycle and manufacturing method thereof |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE705634C (en) * | 1938-09-23 | 1941-05-05 | Boge & Sohn G M B H | Fluid shock absorbers for motor vehicles with piston that can move up and down within a cylinder |
| US2856035A (en) * | 1952-11-12 | 1958-10-14 | Applic Mach Motrices | Hydraulic shock absorber |
| US5207081A (en) * | 1990-11-19 | 1993-05-04 | Kabushiki Kaisha Showa Seisakusho | Vibration damper assembly |
| CN2806880Y (en) * | 2005-07-13 | 2006-08-16 | 宁波杉工结构监测与控制工程中心有限公司 | Double-rod clearance type damping liquid and spring composite vibration damper |
| CN201133440Y (en) * | 2007-11-30 | 2008-10-15 | 北京金自天和缓冲技术有限公司 | Elastic colloid buffer |
| CN101975240A (en) * | 2010-10-25 | 2011-02-16 | 重庆瑞翱机电设备有限公司 | Automatic variable damping rear shock absorber of motorcycle and manufacturing method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160623 Address after: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Applicant after: Qingdao Haier Washing Machine Co., Ltd. Address before: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Applicant before: haier group corporation Applicant before: Qingdao Haier Washing Machine Co., Ltd. |
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| GR01 | Patent grant |