CN101962901A - Gimbal device of rolling drum-type washing machine - Google Patents
Gimbal device of rolling drum-type washing machine Download PDFInfo
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- CN101962901A CN101962901A CN2009101582259A CN200910158225A CN101962901A CN 101962901 A CN101962901 A CN 101962901A CN 2009101582259 A CN2009101582259 A CN 2009101582259A CN 200910158225 A CN200910158225 A CN 200910158225A CN 101962901 A CN101962901 A CN 101962901A
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Abstract
The invention discloses a gimbal device of a rolling drum-type washing machine. The gimbal device comprises at least two annular chambers which are in coaxial with a rolling drum and are arranged at the edge of the rolling drum, wherein at least one chamber is a sphere gimbal provided with a grounder; and at least one chamber is a liquid gimbal provided with flowing liquid. The two different counterweights of the grounder and the liquid are utilized for respectively generating at least two counterbalances with different reaction speeds, thereby improving equilibrium state of rotation when the rolling drum of the washing machine dehydrates. When the rotation speed is less than the point of resonance of the rolling drum and an outer drum, the liquid gimbal absorbs vibration. When the rotation speed exceeds the point of resonance and is stabilized, the sphere gimbal generates high degree of vibration to absorb the vibration of the outer drum. For offset exceeding sphere volume, the liquid gimbal absorbs the vibration. The gimbal device can restrain vibration amplitude of the outer drum when starting and stably rotating, and realizes the purposes of low vibration, low noise and low cost.
Description
Technical field
The present invention relates to be used to prevent or reduce on a kind of washing machine the balanced component of vibration, especially a kind of gimbal device that is used for tumbling-box washing machine.
Background technology
Along with the development of washing machine technology, the washing capacity of washing machine constantly increases, and the rotating speed of spin-dry is also in continuous raising, and the vibration displacement problem that dehydration tumbler produced in the spin-dry process more and more becomes the bottleneck of washing machine technology sustainable development.
In order to overcome dehydration tumbler off-centre, the vibration that laod unbalance causes in the above-mentioned washing machine course of work, on washing machine, used the gimbal structure.In design before, this gimbal is divided into two kinds: liquid injection type balance ring and ball formula gimbal, and these two kinds of forms are passive form, and promptly the response to vibration only is to obtain balance by himself physical action effect.What wherein inject in the fluid balance ring is water or salt solution, but since its by weight of liquid itself configuration carry out balance, in counteracting off-centre that can only part than under the slow-speed of revolution or uneven; The pouring-in more optimized structure of the relative liquid of ball formula gimbal reacts faster, but vibration proof that is produced under high speed conditions and anti-eccentric effect do not have the pouring-in effect of liquid obvious.
What show among Fig. 1 is the fundamental diagram of existing ball formula mechanical balance ring, (be meant mainly that here washing machine is in the drying dehydration process) in the washing machine course of work, the clothing that is placed on laundry machine dehydration tube inside can produce a centrifugal force F1 in rotary course.If any gimbal is not set on this dehydration tube, dehydration tube can cause serious vibration because this centrifugal force F1 that continues produces eccentric rotary so, cause and play tube, the final service life that influences the operate as normal of washing machine and reduce washing machine, and after on the laundry machine dehydration tube, being provided with ball formula mechanical balance ring, this ball formula mechanical balance ring can produce the reverse restoring force F2 with the centrifugal force F1 of above-mentioned dehydration tube in the washing machine course of work, the eccentric rotary of laundry machine dehydration tube is played to a certain extent supression.The operation principle basically identical of the fluid balance ring on the washing machine and the operation principle of other mechanical type gimbal and this ball formula mechanical balance ring, but these existing washing machine balancing rings have its intrinsic shortcoming, and it can only produce effect in a fixed load offset scope.Because its sphere of action is proportional with steel ball quality, along with the load offset increases, expect corresponding effects, will increase steel ball quality; But steel ball quality can not unrestrictedly increase, because can make the cylinder distortion under the centrifugal force of the too big generation of quality and the eccentric centrifugal force acting in conjunction that produces, causes a series of problems such as inner/outer tube friction collision.
Therefore, part Study personnel have proposed the employing multiring structure, and the gimbal structure in a plurality of ring packing chambeies arranged side by side promptly is set in a gimbal.
For example, application number is that the Chinese patent of 96123928.X discloses a kind of tumbling-box washing machine, comprises shell; The bucket that suspends in midair in the shell; The revolvable rotating cylinder that is installed in the bucket of level; Make the engine of rotating cylinder rotation; And bascule.Bascule has cavity volume and the many balls that moves at cavity volume that places rotating cylinder both sides ring-shaped groove respectively.Cavity volume contains predetermined amount of liquid makes ball move freely along cavity volume.Each cavity volume is by the formation that links to each other with the rotating cylinder side plate.First cannelure inwardly forms on the side plate, forms second groove corresponding with first groove on the planar plate members that matches.
Secondly, application number is that 97113699.8 Chinese patent discloses a kind of bascule that is used for roller washing machine, comprising: by side plate and the rotating rotating cylinder that constitutes by interconnective header board of side plate and back plate; Be installed on header board and the back plate, concentric and with rotating cylinder towards two of front or rear panel side-prominent ring-type seat rings, and many spheroids that is arranged in seat ring.
Once more, application number is the balancer that 200510099928 Chinese patent also discloses a kind of washing machine.This balancer comprises: the balancer ring, and it is installed on the cylinder, and this balancer ring has the liquid accommodation space that is used for ccontaining liquid; A plurality of first baffle plates, it is arranged at the inside of balancer ring; And a plurality of second baffles, it is arranged between first baffle plate, so that first baffle plate and second baffle are alternately arranged, wherein the height of second baffle is lower than the height of first baffle plate.When producing unusual vibrations in the washing machine, second baffle prevents springing up of salt solution effectively.
Though disclosing, the above-mentioned prior art of enumerating a plurality of filler chambeies arranged side by side are set in same gimbal to strengthen the technical scheme of washing machine work balance, but it all is to fill identical filler in each filler chamber, this can not well eliminate the uneven urceolus vibration that produces of dehydration in the washing machine course of work, beat the tube problem, especially at the different load offset of wet wash in the cylinder, can only produce effect among a small circle a load offset, in case the load offset is excessive, the urceolus vibration also can occurs, beat the tube problem.
In view of this special proposition the present invention.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provide a kind of in conjunction with spheroid and two kinds of dissimilar washing machine balancing rings of liquid and the gimbal device of the tumbling-box washing machine that obtains, urceolus vibration amplitude when reaching stable the rotation when this gimbal device can suppress to start is realized low vibration, low noise, low cost.
Another object of the present invention is to provide this gimbal device to get balance method.
For solving the problems of the technologies described above, the present invention adopts the basic design of technical scheme to be: a kind of gimbal device of tumbling-box washing machine, described gimbal device is made up of two annular compartments that are arranged on the cylinder edge at least, wherein at least one chamber is the The Balance for Rotating Ball ring that is provided with spin, and having a chamber at least is the fluid balance ring that is provided with working fluid, utilize two kinds of different counterbalances of spin and liquid, produce at least two kinds of equilibrant force that reaction speed is different respectively, and then the poised state of cylinder when improving laundry machine dehydration.
The coaxial setting on cylinder of described each annular compartment, the plane at this each annular compartment place of gimbal device is parallel to each other or overlaps.
Described gimbal device is made of plastic gimbal lid and gimbal body, cut apart by the projection wall body on the described gimbal body and surround to constitute several cannelures, gimbal lid and gimbal body fastening are carried out the deposition welded seal after in above-mentioned cannelure, putting into spin and liquid respectively.
Projection wall body on the described gimbal body is provided with the buckling parts with gimbal lid coupling, and annular compartment left and right sides top side wall is provided with the barrier that burr and abrasion powder when preventing deposition fall into chamber interior.
Be distributed with a plurality of retaining muscle along annular radial at the bottom of the cannelure on the described gimbal body.By stopping that muscle imposes on the revolving force of liquid in the fluid balance ring, make that performance reduces the effect of vibrating when resonance point.
Perpendicular to drum shaft to annular chamber locular wall upper edge circumferencial direction be provided with the support wall body of projection.The support wall body of this projection is with the seating surface of annular compartment sidewall as balls tumble, prevent that by the rolling radius that reduces spheroid the spheroid rotation that occurs because of inertia from lagging behind, can reduce the hysteresis with respect to the cylinder rotation, the urceolus vibration when reducing resonance point.
Described gimbal device is made of a The Balance for Rotating Ball ring and a fluid balance ring, The Balance for Rotating Ball is located on the outer ring of fluid balance ring, be filled with n stainless steel ball in the The Balance for Rotating Ball ring, the pass of itself and annular chamber girth E is nD≤E/2, also be filled with reduce between the stainless steel ball and stainless steel ball and annular compartment inwall between the silicone oil that rubs, be filled with sodium-chloride water solution and/or calcium chloride water in the fluid balance ring, cumulative volume is not more than 1/2 of this cavity space volume.
The different equilibrant force of described at least two kinds of reaction speeds is the different inhibitory action decision that cylinder load off-centre measured by two kinds of fillers, and rotating speed absorbs vibration by the fluid balance ring when cylinder and urceolus resonance point are following; The vibration of height vibration absorption absorption urceolus is waved in the The Balance for Rotating Ball environment-development when rotating speed is stablized by resonance point; Offset for surpassing the spheroid total amount then absorbs vibration by the fluid balance ring.
Annular compartment inner stuffing gross mass m1, the load offset m2 that cylinder load when rotation produces, the offset m3 of program setting, when load offset m2 hour, i.e. m2≤m3, the The Balance for Rotating Ball ring plays a role fast, suppresses the out-of-balance force that eccentric load produces; When the load offset is big, being m2-m1≤m3, at first is that the The Balance for Rotating Ball ring works, along with the raising of washing machine drum rotating speed, the centrifugal force that eccentric load produces increases, and fluid balance ring and The Balance for Rotating Ball ring concur the out-of-balance force that produces when restraining the cylinder high speed rotating.
In the dehydration, when the rotating speed of the spheroid centrifugal force in the The Balance for Rotating Ball ring during greater than gravity, bear spheroid centrifugal force the annular compartment sidewall and perpendicular to drum shaft to the seating surface of annular chamber locular wall when forming the spheroid rotation, this seating surface makes the actual rolling radius of spheroid reduce, and then reduces the hysteresis with respect to the cylinder rotation, the urceolus vibration when reducing resonance point.
After adopting technique scheme, the present invention compared with prior art has following beneficial effect.
Under the low situation of washing machine load offset, the The Balance for Rotating Ball ring can very fast playing a role, but under the high situation of load offset, lifting along with rotating speed, this The Balance for Rotating Ball ring then can not effectively play a role, and the effect that this moment, aforesaid liquid gimbal and this The Balance for Rotating Ball ring were brought into play jointly can remedy the deficiency of single performance just.Therefore, under the different condition of this cylinder load offset, can be good at restraining urceolus vibration, the cylinder that the laundry machine dehydration imbalance causes by the present invention and beat the urceolus phenomenon, make the washing machine smooth working.
According to design feature of the present invention, the low ability that subtracts of vibration when the height offset absorbability that the The Balance for Rotating Ball ring is held adds the startup that the fluid balance ring holds, make the vibration that in the gamut of dehydration stroke, has reduced urceolus, in addition, can also provide take up room little, the big capacity of miniaturization and low vibration, low noise, tumbling-box washing machine cheaply for the user.
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Description of drawings
Fig. 1 is the fundamental diagram of existing ball formula mechanical balance ring;
Fig. 2 is the vertical sectional schematic diagram of tumbling-box washing machine of the present invention;
Fig. 3 is that schematic diagram is compared in installation fluid balance ring and the urceolus vibration that any gimbal is not installed;
Fig. 4 is the comparison schematic diagram that installation fluid balance ring and the urceolus that any gimbal is not installed vibrate corresponding different rotating speeds;
Fig. 5 is the urceolus vibration schematic diagram that the The Balance for Rotating Ball ring is installed;
Fig. 6 is the effect schematic diagram of offsetting offset when the The Balance for Rotating Ball ring is installed;
Fig. 7 is the counterbalance effect comparison diagram and the balance method curve map of bascule under different loads offset situation of gimbal device of the present invention and other single gimbal;
Fig. 8 is a kind of structural representation of gimbal device of the present invention;
Fig. 9 is the another kind of structural representation of gimbal device of the present invention;
Figure 10 is that spheroid rotates schematic diagram in the gimbal device The Balance for Rotating Ball ring of the present invention;
Figure 11 is a spheroid seating surface schematic diagram in the The Balance for Rotating Ball ring structure in the corresponding diagram 8;
Figure 12 is a spheroid seating surface schematic diagram in the The Balance for Rotating Ball ring structure in the corresponding diagram 9;
Figure 13 is a gimbal device annular bottom land schematic diagram of the present invention;
Figure 14 is that gimbal device of the present invention is installed on an embodiment schematic diagram on the cylinder;
Figure 15 is that gimbal device of the present invention is installed on another embodiment schematic diagram on the cylinder;
Figure 16 is that gimbal device of the present invention is installed on the cylinder embodiment schematic diagram again.
The specific embodiment
What represent as Fig. 2 is the vertical sectional schematic diagram of tumbling-box washing machine of the embodiment of the invention.In this figure, only put down in writing the basic constituent element of washing machine drum and gimbal, other key element of washing machine, for example diagram is not charged in omission such as control panel switch.The tumbling-box washing machine formation mainly comprises: the housing of sheet iron system, support the synthetic resin system base frame of this housing, the synthetic resin system urceolus of being supported by elasticity by supporting structure from the base frame, the ripple film that between the front of urceolus and housing, keeps water-stop, cooperate with ripple film, be arranged on the glass door on the housing, be arranged on the urceolus rear portion and be used for the flange of supporting rotating shaft, be positioned at outer tube bottom, the limbers, side in front, the SUS system cylinder of band peristome, be connected the bottom of urceolus, the urceolus that the other end is equipped with the aluminum casting system of the bearing of the rotating shaft that has rotor above the support and motor stator supports; And the rotating shaft of cylinder is the maintenance level or is inclined to set for making the front side exceed some than inboard (rear side).
When washing, rinsing, dehydration, non-carbonate motor-driven cylinder rotation; During dehydration, carry out vibration detection by the vibrating detector in the controller, according to the decision of the benchmark that configures in advance by, rotation is quickened and non-by, the judgement that stops.These drivings and vibration detection and the control of advancing draining etc. all are to be undertaken by controller.
To shown in Figure 6, the urceolus when Fig. 3 and Fig. 4 represent the fluid balance ring is housed vibrates situation as Fig. 3.Among Fig. 3, when not installing on the washing machine drum under the condition of any gimbal, the load offset (amount of unbalance) of corresponding washing machine drum can be represented with the straight line C1 of a linear change with the amplitude of urceolus vibration, among the figure as can be seen, the load offset of washing machine drum is big more, the urceolus Oscillation Amplitude of washing machine is just big more, and the angle of this straight line and transverse axis is θ; Under the condition that the fluid balance ring is installed on the washing machine drum, also form the proportional relationship of a substantially linear between the load offset of its cylinder and the Oscillation Amplitude of washing machine, represent with straight line C2 that in the drawings the angle of this straight line C2 and transverse axis is α and α＜θ; As can be seen, under the condition of identical load offset, the vibration of washing machine amplitude that the fluid balance ring has been installed is less than the vibration of washing machine amplitude that gimbal is not installed among the figure.As shown in Figure 4, the urceolus Oscillation Amplitude of curve L1 when any gimbal is not installed, the curve L2 urceolus Oscillation Amplitude when the fluid balance ring is installed.Fluid balance ring shock absorption of (consulting a part among Fig. 4) when starting resonance point is very high, this miniaturization for product is a kind of very effective means, but when stablizing, (consult a part among Fig. 4), almost do not reduce the ability of vibration when also promptly rotating at a high speed, especially when the big high speed of high speed Rotation Noise change that is accompanied by cylinder was rotated, the effect of fluid balance ring was not sufficient.
Below will describe the The Balance for Rotating Ball ring.Distinguish according to drum rotation speed its action is described.
The fluid balance ring is identical with the The Balance for Rotating Ball ring basically, but when the lower startup of rotating speed, because spheroid can not get sufficient revolving force, rotation lags behind cylinder and inner off-centre, therefore, as shown in Figure 5, the vibration of urceolus especially when being present in 200～300rpm of resonance point, is accompanied by covibration because of spheroid in the relative position relation of off-centre big variation takes place, spheroid itself becomes offset makes the urceolus high vibration, therefore collides with housing sometimes.For anti-phenomenon here, enclose the high oil of viscosity and prevent sharply moving of spheroid, but effect is inadequate, according to circumstances appends antihunting device (damper) sometimes and solves.On the other hand, the fluid balance ring do not need need guarantee swing-around trajectory as the The Balance for Rotating Ball ring, therefore can freely be provided with to stop that muscle imposes on liquid in rotation power, can bring into play the effect that minimizing is vibrated when resonance point.
Rotating speed is by behind the resonance point, and the The Balance for Rotating Ball ring can be brought into play very high vibration absorption.Fig. 6 is that wherein, 0 ' is centre of the drum to the explanation of the action of the spheroid in the rotation, 0 " and be pivot, F ' is the centrifugal force of centre of the drum's direction, F " be the centrifugal force of pivot direction.Because of the existence of offset F, centre of the drum 0 ' and pivot 0 " inconsistent, pivot 0 " be positioned at the side of offset F.The component Δ F that acts on the centrifugal force of spheroid 6 this moment becomes makes the opposition side of spheroid 6 to offset F, promptly offset the power that eccentric direction moves, make spheroid move, move by this power, F becomes 0 until offset, the vibration that is urceolus becomes 0, certainly the total amount of spheroid is also limited, and the relation of offset and urceolus vibration as shown in Figure 7.
What Fig. 7 showed is exactly the different-effect comparative descriptions that gimbal device of the present invention and existing washing machine balancing ring produce.In the coordinate plane in Fig. 7, its transverse axis is represented the offset of washing machine drum load wet wash, i.e. amount of unbalance, and the representative of the longitudinal axis in the coordinate system is exactly the Oscillation Amplitude of washing machine urceolus.When not installing on the washing machine drum under the condition of any gimbal, the load offset of corresponding washing machine drum and the amplitude of vibration can be represented with the straight line C1 of a linear change, among the figure as can be seen, the load offset of washing machine drum is big more, the Oscillation Amplitude of washing machine is just big more, and the angle of this straight line and transverse axis is θ; Under the condition that the fluid balance ring is installed on the washing machine drum, also form the proportional relationship of a substantially linear between the load offset of its cylinder and the Oscillation Amplitude of washing machine drum, represent with straight line C2 that in the drawings the angle of this straight line C2 and transverse axis is α and α＜θ; As can be seen, under the condition of identical load offset, the Oscillation Amplitude that the washing machine urceolus of fluid balance ring has been installed is less than the vibration of washing machine amplitude that gimbal is not installed among the figure; The effect that the washing machine of installation The Balance for Rotating Ball ring produces is then more complicated, at first the reaction of The Balance for Rotating Ball ring is better than the fluid balance ring, it can fully play effect under the lower condition of washing machine drum load offset, so just produced preceding half section straight line portion of C3 broken line among the figure, the angle of the straight line of this straight line portion and transverse axis is simultaneously less than above-mentioned α, θ, but after the point of the offset threshold values b of a corresponding transverse axis, this The Balance for Rotating Ball ring but can not produce same effect as the fluid balance ring, along with offset is high more, the Oscillation Amplitude that the rate of change of its Oscillation Amplitude obviously comes greater than the fluid balance endless belt, up to, Oscillation Amplitude is higher than the Oscillation Amplitude that the fluid balance endless belt comes; And broken line C4 is the corresponding situation that load offset with its Oscillation Amplitude of washing machine urceolus of the present invention are installed, coinciding of the phase I of this broken line C4 phase I and broken line C3, show under the situation that is lower than load offset b, The Balance for Rotating Ball ring in the bascule of the present invention in action, second section by the broken line after the threshold values b place then show in the bascule of the present invention the fluid balance ring in action, its angle α with the angle of transverse axis and straight line C2 is identical.As can be seen, bascule of the present invention combines the advantage of existing fluid balance ring and The Balance for Rotating Ball ring, and no matter the variation of load offset is much, and the Oscillation Amplitude that produces in the rotation process of washing machine drum is all less and change steady.Though increased a gimbal structure in the prior art separately, in fact all be the stack of on single gimbal basis, carrying out, this stack can not produce technique effect as described in the present invention.
As Fig. 8 and shown in Figure 9, gimbal device for tumbling-box washing machine of the present invention, described gimbal device is formed by being two annular compartments 30 that concentric shape is provided with cylinder 1 at least, wherein at least one chamber is the The Balance for Rotating Ball ring 4 that is provided with spin, and having a chamber at least is the fluid balance ring 5 that is provided with working fluid, utilize two kinds of different counterbalances of spin and liquid, produce at least two kinds of equilibrant force that reaction speed is different respectively, and then the poised state of cylinder when improving laundry machine dehydration.
Gimbal device of the present invention is made of plastic gimbal lid 2 and gimbal body 3, cut apart by the projection wall body 31 on the described gimbal body 3 and surround to constitute several cannelures 32, gimbal lid 2 fastened with gimbal body 3 after in above-mentioned cannelure 32, putting into spin 6 and liquid respectively and carry out the deposition welded seal.
Gimbal device of the present invention is made of a The Balance for Rotating Ball ring 4 and a fluid balance ring 5, The Balance for Rotating Ball ring 4 is located at the outer ring of fluid balance ring 5, be filled with n stainless steel ball in the The Balance for Rotating Ball ring 4, the pass of itself and annular chamber girth E is nD≤E/2, also be filled with reduce between the stainless steel ball and stainless steel ball and annular compartment inwall between the silicone oil that rubs, be filled with sodium-chloride water solution and/or calcium chloride water in the fluid balance ring 5, cumulative volume is not more than 1/2 of this cavity space volume.
Wherein, the projection wall body 31 on the described gimbal body 3 is provided with the buckling parts 33 with gimbal lid 2 coupling, and annular compartment 30 left and right sides top side wall are provided with the barrier 34 that burr and abrasion powder when preventing deposition fall into chamber interior.Burr that produces when preventing deposition and abrasion powder fall into the rotation that hinders spheroid in the cannelure 32.
As shown in figure 13, be distributed with a plurality of retaining muscle 35 along annular radial at the bottom of the cannelure on the described gimbal body.This retaining muscle 35 can only be located in the fluid balance ring 5, or only is located in the The Balance for Rotating Ball ring 4, and perhaps two kinds of gimbals are equipped with.By stopping that muscle 35 imposes on the revolving force of liquid in the fluid balance ring, make and equally also can work the effect that performance reduces vibration when resonance point the The Balance for Rotating Ball ring.
As Fig. 9 and shown in Figure 10, perpendicular to drum shaft to annular chamber locular wall upper edge circumferencial direction be provided with the support wall body 37 of projection.The support wall body 37 of this projection is with the seating surface of annular compartment sidewall 36 as balls tumble, prevent that by the rolling radius that reduces spheroid the spheroid rotation that occurs because of inertia from lagging behind, can reduce the hysteresis with respect to the cylinder rotation, the urceolus vibration when reducing resonance point.Perhaps, as shown in Figure 8, directly use perpendicular to drum shaft to the annular chamber locular wall as supporting wall body.It is corresponding Figure 11 and shown in Figure 12 respectively, for the spheroid that prevents from by the rolling radius that reduces spheroid to occur because of inertia rotates the constructed embodiment that lags behind.Supported by two some C, D when rotating because of spheroid, actual radius of turn is not the radius r of spheroid but e.According to the embodiment of this case, the length 2 π e that advance that spheroid turned around by mobile support point D reduce, and can reduce the hysteresis with respect to the cylinder rotation, the urceolus vibration when reducing resonance point like this.
Gimbal device in the above-mentioned embodiment of the present invention is the overall structure that two annular compartments are distributed to the outer ring by inner ring, promptly, the planes overlapping (consulting Fig. 2 and Figure 16) at two annular compartments, 30 places, the present invention singly is not a said structure, structure before and after also can each gimbal, promptly, as Figure 14 and shown in Figure 15, the coaxial setting of Figure 14 intermediate roll has 4 annular compartments 30, be respectively two The Balance for Rotating Ball rings 4 and two fluid balance rings 5, the gimbal that is made of a The Balance for Rotating Ball ring 4 and a fluid balance ring 5 is arranged on the cylinder 1 outside previous concentric plane, the gimbal that is made of another The Balance for Rotating Ball ring 4 and another fluid balance ring 5 is arranged on cylinder 1 an outside back concentric plane, and two planes are parallel to each other; The coaxial setting of Figure 15 intermediate roll has 3 annular compartments 30, be respectively two The Balance for Rotating Ball rings 4 and a fluid balance ring 5, the gimbal that is made of a The Balance for Rotating Ball ring 4 and a fluid balance ring 5 is arranged on the cylinder 1 outside back concentric plane, be arranged on cylinder 1 outside previous concentric plane by another The Balance for Rotating Ball ring 4, two planes are parallel to each other.
In addition, gimbal device of the present invention also can be the gimbal device of three annular compartments formations, as Figure 15 and shown in Figure 16, the gimbal device is the combining structure of a fluid balance ring 5 and two The Balance for Rotating Ball rings 4, disclosed among Figure 15 is one planes, a The Balance for Rotating Ball ring 4 places, an another The Balance for Rotating Ball ring 4 and a fluid balance ring 5 be on same plane, two plane parallel; Disclosed among Figure 16 is the planes overlapping at a fluid balance ring 5 and two The Balance for Rotating Ball ring 4 places.The gimbal device also can be made of the annular compartment more than three, as shown in figure 14.
The different equilibrant force of at least two kinds of reaction speeds of the present invention is the different inhibitory action decision that cylinder load off-centre measured by two kinds of fillers, and rotating speed absorbs vibration by the fluid balance ring when cylinder and urceolus resonance point are following; The vibration of height vibration absorption absorption urceolus is waved in the The Balance for Rotating Ball environment-development when rotating speed is stablized by resonance point; Offset for surpassing the spheroid total amount then absorbs vibration by the fluid balance ring.
Annular compartment inner stuffing gross mass m1, the load offset m2 that cylinder load when rotation produces, the offset m3 of program setting, when load offset m2 hour, i.e. m2≤m3, the The Balance for Rotating Ball ring plays a role fast, suppresses the out-of-balance force that eccentric load produces; When the load offset is big, being m2-m1≤m3, at first is that the The Balance for Rotating Ball ring works, along with the raising of washing machine drum rotating speed, the centrifugal force that eccentric load produces increases, and fluid balance ring and The Balance for Rotating Ball ring concur the out-of-balance force that produces when restraining the cylinder high speed rotating.
In the dehydration, when the rotating speed of the spheroid centrifugal force in the The Balance for Rotating Ball ring during greater than gravity, bear spheroid centrifugal force the annular compartment sidewall and perpendicular to drum shaft to the seating surface of annular chamber locular wall when forming the spheroid rotation, this seating surface makes the actual rolling radius of spheroid reduce, and then reduces the hysteresis with respect to the cylinder rotation, the urceolus vibration when reducing resonance point.
Claims (10)
1. the gimbal device of a tumbling-box washing machine, it is characterized in that: described gimbal device is made up of two annular compartments that are arranged on the cylinder edge at least, wherein at least one chamber is the The Balance for Rotating Ball ring that is provided with spin, and to have a chamber at least be the fluid balance ring that is provided with working fluid.
2. the gimbal device of tumbling-box washing machine according to claim 1, it is characterized in that: the coaxial setting on cylinder of described each annular compartment, the plane at each annular compartment place is parallel to each other or overlaps.
3. the gimbal device of tumbling-box washing machine according to claim 1 and 2, it is characterized in that: described gimbal device is made of plastic gimbal lid and gimbal body, cut apart encirclement by the projection wall body on the described gimbal body and constitute several cannelures, spin and liquid are housed respectively in above-mentioned cannelure, and gimbal lid and gimbal body fasten sealing.
4. the gimbal device of tumbling-box washing machine according to claim 3, it is characterized in that: the projection wall body on the described gimbal body is provided with the buckling parts with gimbal lid coupling, and annular compartment left and right sides top side wall is provided with the barrier that burr and abrasion powder when preventing deposition fall into chamber interior.
5. the gimbal device of tumbling-box washing machine according to claim 4, it is characterized in that: be distributed with a plurality of retaining muscle along annular radial at the bottom of the cannelure on the described gimbal body, perpendicular to drum shaft to annular chamber locular wall upper edge circumferencial direction be provided with the support wall body of projection.
6. the gimbal device of tumbling-box washing machine according to claim 5, it is characterized in that: described gimbal device is made of a The Balance for Rotating Ball ring and a fluid balance ring, The Balance for Rotating Ball is located on the outer ring of fluid balance ring, be filled with n stainless steel ball in the The Balance for Rotating Ball ring, the pass of itself and annular chamber girth E is nD≤E/2, also be filled with reduce between the stainless steel ball and stainless steel ball and annular compartment inwall between the silicone oil that rubs, be filled with sodium-chloride water solution and/or calcium chloride water in the fluid balance ring, cumulative volume is not more than 1/2 of this cavity space volume.
7. the balance method of a kind as above-mentioned tumbling-box washing machine gimbal device, it is characterized in that: described gimbal device is formed by being two annular compartments that concentric shape is provided with cylinder at least, wherein at least one chamber is the The Balance for Rotating Ball ring that is provided with spin, and having a chamber at least is the fluid balance ring that is provided with working fluid, utilize two kinds of different counterbalances of spin and liquid, produce at least two kinds of equilibrant force that reaction speed is different respectively, and then the poised state of cylinder when improving laundry machine dehydration.
8. balance method according to claim 7, it is characterized in that: the different equilibrant force of described at least two kinds of reaction speeds is by two kinds of fillers the different inhibitory action that cylinder load off-centre measures to be determined, rotating speed absorbs vibration by the fluid balance ring when cylinder and urceolus resonance point are following; The vibration of height vibration absorption absorption urceolus is waved in the The Balance for Rotating Ball environment-development when rotating speed is stablized by resonance point; Offset for surpassing the spheroid total amount then absorbs vibration by the fluid balance ring.
9. balance method according to claim 8, it is characterized in that: annular compartment inner stuffing gross mass m1, the load offset m2 that produces during cylinder load rotation, the offset m3 of program setting, when load offset m2 hour, be m2≤m3, the The Balance for Rotating Ball ring plays a role fast, suppresses the out-of-balance force that eccentric load produces; When the load offset is big, being m2-m1≤m3, at first is that the The Balance for Rotating Ball ring works, along with the raising of washing machine drum rotating speed, the centrifugal force that eccentric load produces increases, and fluid balance ring and The Balance for Rotating Ball ring concur the out-of-balance force that produces when restraining the cylinder high speed rotating.
10. balance method according to claim 8, it is characterized in that: in the dehydration, when the rotating speed of the spheroid centrifugal force in the The Balance for Rotating Ball ring during greater than gravity, bear spheroid centrifugal force the annular compartment sidewall and perpendicular to drum shaft to the seating surface of annular chamber locular wall when forming the spheroid rotation, this seating surface makes the actual rolling radius of spheroid reduce, and then reduces the hysteresis with respect to the cylinder rotation, the urceolus vibration when reducing resonance point.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910158225.9A CN101962901B (en) | 2009-07-22 | 2009-07-22 | Gimbal device of rolling drum-type washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910158225.9A CN101962901B (en) | 2009-07-22 | 2009-07-22 | Gimbal device of rolling drum-type washing machine |
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| Publication Number | Publication Date |
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| CN101962901A true CN101962901A (en) | 2011-02-02 |
| CN101962901B CN101962901B (en) | 2014-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910158225.9A Active CN101962901B (en) | 2009-07-22 | 2009-07-22 | Gimbal device of rolling drum-type washing machine |
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Effective date of registration: 20160711 Address after: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Patentee after: Qingdao Haier Washing Machine Co., Ltd. Address before: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Patentee before: haier group corporation Patentee before: Qingdao Haier Drum Washing Machine Co., Ltd. |