CN220619469U - Dynamic balancing device of washing machine, roller assembly and washing machine - Google Patents

Abstract

The utility model relates to a dynamic balance device of a washing machine, a roller assembly and the washing machine, wherein the dynamic balance device is arranged on a roller body, an eccentric assembly is arranged between a driving assembly and the roller body, an elastic assembly is arranged between the roller body and a washing machine shell, and the roller body can swing greatly under the combined action of the elastic assembly and the eccentric assembly; and when the drum body swings, the elastic component continuously elastically deforms, and when the swing amplitude of the drum body is overlarge, the elastic component can be pulled back to the drum body through the rotating shaft component, so that the effect of self-adaptive dynamic balance is achieved, the running stability of the drum body is greatly improved, the vibration of the washing machine during running is reduced, the number of parts of the dynamic balance device is less, the structure is simple, and the production cost is low.

Description

Dynamic balancing device of washing machine, roller assembly and washing machine

Technical Field

The utility model relates to the technical field of washing machines, in particular to a dynamic balancing device of a washing machine, a roller assembly and the washing machine.

Background

Patent CN2017214151985 discloses a dynamic balancing device of a drum type washing machine, an inner drum assembly and a drum type washing machine, wherein the dynamic balancing device can be installed on an inner drum of the drum type washing machine, and can directly perform liquid dynamic balancing on a rotary vibration source of an inner drum rotor through a radial balancing chamber and an axial balancing chamber structure which are communicated with each other and balancing liquid filled in the radial balancing chamber and the axial balancing chamber and capable of freely flowing;

as known from the above patent, in the dynamic balancing device of the existing washing machine, a balancing ring is usually disposed on a drum, then a certain amount of balancing liquid is disposed in the balancing ring, and the liquid dynamic balance is directly performed on the rotating vibration source of the drum under the action of the rotating centrifugal force of the drum;

the dynamic balancing device adopting the design needs to inject the balancing liquid into the balancing ring, has complex production procedures, is easy to leak and the like, influences the normal operation of the washing machine, and needs a certain amount of balancing liquid to realize the effect of liquid dynamic balancing, so that the structure of the balancing ring needs to be large enough to accommodate enough balancing liquid, and is unfavorable for the portable setting of the washing machine;

further, as known from the background art of the above patent, the drum type washing machine has its vibration source mainly from a suspension system; the suspension system is used as the core component of the drum washing machine and mainly comprises an inner drum rotor, an outer drum component, a driving motor, a balancing weight, a suspension spring and a damper. Wherein the inner cylinder rotor belongs to a high-speed rotating structure, is mainly connected with the outer cylinder of the washing machine through a bearing, and is driven to rotate by a motor through a transmission belt, so that the functions of washing, dewatering and the like are realized;

when the clothes unbalanced load exists in the inner cylinder of the inner cylinder rotor, the rotor can generate a rotation asymmetry phenomenon, and vibration of a suspension system and even the whole washing machine is caused, so that user experience and the service life of the washing machine are seriously influenced; the current washing machine mainly adopts the combination type dynamic balance vibration reduction of a balancing weight, a hanging spring and a damper which are arranged on an outer cylinder body, and the vibration reduction design often causes the abnormal heaviness of a suspension system;

as can be seen from the above description, the dynamic balance structure of the existing washing machine is complex, the production cost is high, and the occupied space of the washing machine is large, which is not beneficial to reducing the volume of the washing machine.

The utility model is researched and proposed for overcoming the defects of the prior art.

Disclosure of Invention

Aiming at the technical problems of complex dynamic balance structure and high production cost of the washing machine in the prior art.

The technical scheme adopted for solving the technical problems is as follows:

a dynamic balancing apparatus of a washing machine, the dynamic balancing apparatus being provided on a drum body and a driving assembly of the washing machine, the dynamic balancing apparatus comprising:

the eccentric assembly is arranged between the driving assembly and the roller body and can enable the driving assembly to drive the roller body to make eccentric motion;

an elastic component arranged between the roller body and the washing machine shell,

the elastic component can elastically deform along with the movement of the roller body.

The eccentric component and the elastic component are respectively arranged at two ends of the roller body.

The elastic component comprises a first soft rubber ring, wherein the first soft rubber ring comprises a roller fixing part, a first deformation part and a first shell fixing part which are sequentially arranged, the roller fixing part is connected with a roller body, and the first shell fixing part is connected with a washing machine shell.

The dynamic balancing device of the washing machine is characterized in that the first soft rubber ring is of a disc structure, the roller fixing part is arranged on the inner side of the first deformation part, and the first shell fixing part is arranged on the outer side of the first deformation part.

In the dynamic balance device of a washing machine, the first deformed portion has a circular arc-shaped cross-section.

The eccentric assembly comprises a second soft rubber ring arranged at the output end of the driving assembly and a rotating shell sleeved outside the second soft rubber ring, wherein the rotating shell is fixedly connected with the roller body, and the second soft rubber ring is fixedly connected with the output end of the driving assembly.

The first soft rubber ring comprises a first deformation part, an output end connecting part concentrically arranged on the outer side of the first deformation part, and a first shell fixing part concentrically arranged on the inner side of the first deformation part, wherein the output end connecting part is connected with the output end of the driving assembly, and the first shell fixing part is fixedly connected with the rotating shell.

The eccentric assembly further comprises a soft rubber fixing ring, the soft rubber fixing ring is arranged in the rotating shell and can be used for fixing the second shell fixing part in the rotating shell, a connecting member is further arranged between the soft rubber fixing ring and the rotating shell, the soft rubber fixing ring and the rotating shell are detachably connected through the connecting member, and an avoidance hole or an avoidance gap capable of avoiding the connecting member is further formed in the second shell fixing part.

The drum assembly of the washing machine comprises a drum body and the dynamic balancing device according to any one of the above, wherein a rotating shaft member is arranged on the drum body and connected with an elastic assembly, a rotating part is further arranged on the drum body, and the rotating part is connected with an eccentric assembly.

A washing machine comprising a washing machine shell, a driving assembly and a roller assembly according to any one of the above, wherein the washing machine shell comprises a water tank and a shell, the water tank is arranged in the shell, an assembly cavity is formed between the water tank and the shell, the driving assembly is arranged in the assembly cavity, the roller assembly is arranged in the water tank, an output end of the driving assembly extends into the water tank and is connected with an eccentric assembly, and an elastic assembly is connected with the side wall of the water tank.

The beneficial effects of the utility model are as follows:

the utility model relates to a dynamic balance device of a washing machine, a roller assembly and the washing machine, wherein the dynamic balance device is arranged on a roller body, an eccentric assembly is arranged between a driving assembly and the roller body, an elastic assembly is arranged between the roller body and a washing machine shell, and the roller body can swing greatly under the combined action of the elastic assembly and the eccentric assembly; and when the drum body swings, the elastic component continuously elastically deforms, and when the swing amplitude of the drum body is overlarge, the elastic component can be pulled back to the drum body through the rotating shaft component, so that the effect of self-adaptive dynamic balance is achieved, the running stability of the drum body is greatly improved, the vibration of the washing machine during running is reduced, the number of parts of the dynamic balance device is less, the structure is simple, and the production cost is low.

The utility model will be further described with reference to the drawings and detailed description.

Drawings

Fig. 1 is a schematic structural view of a washing machine of the present utility model;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged schematic view of portion B marked in FIG. 2;

FIG. 4 is an enlarged schematic view of portion C marked in FIG. 2;

FIG. 5 is a schematic view of the drum assembly and water tank of the present utility model after assembly;

FIG. 6 is a second schematic view of the assembled drum assembly and water tank of the present utility model;

FIG. 7 is a schematic view of a roller assembly (with a hidden portion of the roller body) according to the present utility model;

FIG. 8 is one of the exploded views of the drum assembly of the present utility model;

FIG. 9 is a second exploded view of the drum assembly of the present utility model (hidden portion drum body);

FIG. 10 is a schematic view of a first soft rubber ring according to the present utility model;

fig. 11 is a schematic structural view of a second soft rubber ring according to the present utility model.

Detailed Description

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 11, a washing machine in this embodiment includes a washing machine housing 5, a driving assembly 2, and a drum assembly, wherein the washing machine housing 5 includes a water tank 51 and a housing 52, the water tank 51 is disposed in the housing 52, an assembly cavity 53 is formed therebetween, the driving assembly 2 is disposed in the assembly cavity 53, and the drum assembly is disposed in the water tank 51;

the drum assembly comprises a drum body 1 and a dynamic balancing device, wherein the dynamic balancing device is arranged on the drum body 1 and a driving assembly 2 of the washing machine, and the dynamic balancing device comprises:

the eccentric assembly 3 is arranged between the driving assembly 2 and the roller body 1, and the eccentric assembly 3 can enable the driving assembly 2 to drive the roller body 1 to make eccentric motion;

an elastic component 4 arranged between the roller body 1 and the washing machine shell 5;

preferably, a rotating shaft member 11 is arranged on the roller body 1, the rotating shaft member 11 is connected with the elastic component 4, a rotating part 12 is also arranged on the roller body 1, and the rotating part 12 is connected with the eccentric component 3;

preferably, the output end of the driving component 2 extends into the water tank 51 and is connected with the eccentric component 3, and the elastic component 4 is connected with the side wall of the water tank 51;

specifically, after the user places the clothes into the drum body 1, the drum body 1 is in a load state, the elastic component 4 is in an elastic deformation state under the action of the gravity of the clothes, the washing machine is started, the driving component 2 drives the drum body 1 to make eccentric motion under the action of the eccentric component 3, meanwhile, the drum body 1 rotates under the condition of eccentric load, the generated centrifugal force enables the elastic component 4 to generate strain, and under the combined action of the elastic component 4 and the eccentric component 3, the drum body 1 can make large-amplitude swing, so that the drum body can present a conical motion track;

and, when the drum body 1 swings, the elastic component 4 continuously elastically deforms, and when the swing amplitude of the drum body 1 is overlarge, the drum body 1 can be pulled back through the rotating shaft component 11, so that the effect of self-adaptive dynamic balance is achieved, the running stability of the drum body 1 is greatly improved, and the vibration of the washing machine during running is reduced.

As shown in fig. 1 to 11, the eccentric assembly 3 and the elastic assembly 4 in the present embodiment are provided separately at both ends of the drum body 1;

specifically, the rotating shaft member 11 is disposed at one end of the drum body 1, and the rotating portion 12 is disposed at the other end of the drum body 1;

preferably, the washing machine is a drum type washing machine, the drum body 1 is transversely arranged in the water tank 51, and the elastic component 4 is positioned between the side wall of the water tank 51 and the rotating shaft component 11 and is respectively connected with the side wall of the water tank 51 and the rotating shaft component 11;

the eccentric assembly 3 is positioned between the roller body 1 and the driving assembly 2, and the eccentric assembly 3 is respectively connected with the rotating part 12 and the driving assembly 2;

when the washing machine works, the driving assembly 2 works, and drives the roller body 1 to circumferentially rotate through the eccentric assembly 3 and the rotating part 12, and meanwhile, the roller body 1 circumferentially rotates on the elastic assembly 4 through the rotating shaft member 11, so that the washing machine has the advantages of simple structure, lower production cost, convenience in operation and the like.

Preferably, the rotating shaft member 11 includes a rotating shaft 111 disposed on the drum body 1, a bearing 112 sleeved outside the rotating shaft 111, and a shaft sleeve 113 sleeved outside the bearing 112, and the elastic component 4 is fixedly connected with the shaft sleeve 113.

As shown in fig. 1 to 11, the elastic assembly 4 in the present embodiment includes a first soft rubber ring 41, the first soft rubber ring 41 includes a drum fixing portion 411, a first deformation portion 412, and a first casing fixing portion 413 sequentially disposed, the drum fixing portion 411 is connected with the drum body 1, and the first casing fixing portion 413 is connected with the washing machine casing 5;

specifically, the roller fixing portion 411 is fixedly connected to the shaft sleeve 113, and the first casing fixing portion 413 is fixedly connected to the water tank 51;

when the washing machine works, the first shell fixing part 413 is fixed on the side wall of the water tank 51 and cannot move, the roller body 1 rotates in the water tank 51 through the bearing 112, meanwhile, the roller body 1 drives the first deformation part 412 to continuously elastically deform through the shaft sleeve 113, so that the roller body 1 forms a swinging effect, and the washing machine can achieve a dynamic balance effect by adopting an elastic part through the design of the first soft rubber ring 41.

Preferably, the first soft rubber ring 41 in the present embodiment has a disc-like structure, the roller fixing portion 411, the first deformation portion 412, and the first housing fixing portion 413 are concentrically disposed, the roller fixing portion 411 is disposed on the inner side of the first deformation portion 412, and the first housing fixing portion 413 is disposed on the outer side of the first deformation portion 412;

with such a design, the first soft rubber ring 41 is convenient to be assembled with the roller body 1 and the water tank 51 respectively, and a certain deformation space is formed between the roller body 1 and the water tank 51 so as to allow the first deformation part 412 to elastically deform.

Preferably, the first soft rubber ring 41 is an integrally formed structure, and has the advantages of high structural strength and long service life.

Specifically, in this embodiment, the cross-sectional shape of the first deforming portion 412 is in an arc shape, preferably in a U shape, the U-shaped opening of the first deforming portion 412 faces the roller body 1, the outer leg of the first deforming portion 412 is connected to the first casing fixing portion 413, the inner leg is connected to the roller fixing portion 411, and when the first deforming portion 412 deforms, a portion of the inner leg of the first deforming portion 412 moves in a direction approaching the corresponding outer leg, and a portion of the inner leg moves in a direction separating from the corresponding outer leg, and the first deforming portion 412 drives the shaft sleeve 113 on the roller fixing portion 411 to move through the inner leg, so as to achieve the swinging effect of the roller body 1;

by adopting the design that the cross-sectional shape of the first deformation portion 412 is arc-shaped, the deformation amount of the first deformation portion 412 can be ensured, the swing effect of the roller body 1 is ensured, the condition that the swing amplitude of the roller body 1 is overlarge and the deformation amount exceeding the first deformation portion 412 causes the damage of the first soft rubber ring 41 can be avoided, and the service life of the roller is ensured.

Preferably, the elastic component 4 further includes a flexible glue cover plate 42 and a shaft sleeve fixing plate 43, where the flexible glue cover plate 42 is disposed on the outer side wall of the water tank 51;

preferably, the flexible glue cover plate 42 is in a ring shape, an assembly hole is formed on the outer side wall of the water tank 51, the first flexible glue ring 41 is located at the assembly hole, and the first casing fixing portion 413 is connected between the flexible glue cover plate 42 and the outer side wall of the water tank 51 in a sealing manner, so as to ensure that the water tank 51 cannot leak water;

preferably, one side of the roller fixing portion 411 is an assembling groove, and the other side is formed with an assembling protrusion, and one side of the shaft sleeve 113 is assembled into the assembling groove and is abutted against the assembling groove;

the shaft sleeve fixing plate 43 is assembled on the outer side wall of the assembling protrusion, and the shaft sleeve fixing plate 43 is abutted against the outer side wall of the assembling protrusion, and a plurality of connecting pieces (such as screws and the like) are further arranged on the shaft sleeve fixing plate 43 and fixedly connected with the shaft sleeve 113 through the roller fixing part 411.

As shown in fig. 1 to 11, the eccentric assembly 3 in the present embodiment includes a second soft rubber ring 31 disposed on the output end of the driving assembly 2, and a rotating housing 32 sleeved outside the second soft rubber ring 31, where the rotating housing 32 is fixedly connected with the roller body 1, and the second soft rubber ring 31 is fixedly connected with the output end of the driving assembly 2;

specifically, the rotating housing 32 is fixedly connected with the rotating portion 12, the rotating portion 12 is an assembly hole formed on one end of the roller body 1, one end of the rotating housing 32 is fixedly arranged on the rotating portion 12, and the rotating housing 32 and the rotating portion 12 are integrally formed, so that the roller has the advantages of strong structural strength and long service life;

preferably, the other end of the rotary housing 32 extends into the drum body 1, so that the structure of the washing machine is more compact, the volume of the washing machine can be effectively reduced, and the rotary housing 32 can play a role in stirring when the washing machine works, so that clothes can be scattered, and the clothes are prevented from being entangled.

Preferably, a plurality of positioning clamping grooves 314 are formed in the second soft rubber ring 31, a plurality of positioning protrusions 231 corresponding to the positioning clamping grooves 314 are formed on the output end of the driving assembly 2, and the positioning protrusions 231 are clamped into the positioning clamping grooves 314 so as to fix the second soft rubber ring 31 on the output end of the driving assembly 2;

specifically, when the output end of the driving assembly 2 rotates circumferentially, the second soft rubber ring 31 drives the rotating shell 32 to rotate circumferentially;

specifically, under the condition of the load in the drum body 1, the drum body 1 can press the second soft rubber ring 31 by the rotating shell 32 to make the second soft rubber ring 31 elastically deformed, so that the position of the rotating shell 32 on the output end of the driving assembly 2 is changed to enable the position of the drum body 1 in the water tank 51 to deviate, when the drum body 1 is driven to rotate circumferentially, the second soft rubber ring 31 continuously elastically deforms under the weight of the clothes in the rotating shell 32 and the drum body 1, and because the second soft rubber ring 31 is arranged on the output end, the second soft rubber ring 31 has a little deformation effect to enable the drum body 1 to generate an eccentric effect, so that the drum has the advantage of simple structure.

Preferably, the second soft rubber ring 31 in the present embodiment includes a second deformation portion 311, an output end connecting portion 312 concentrically disposed outside the second deformation portion 311, and a second housing fixing portion 313 concentrically disposed inside the second deformation portion 311, wherein the output end connecting portion 312 is connected to the output end of the driving assembly 2, and the second housing fixing portion 313 is fixedly connected to the rotating housing 32;

specifically, the output end connecting portion 312 has a through hole, the output end connecting portion 312 is sleeved outside the output end of the driving assembly 2, the positioning slot 314 is disposed on one side of the second deformation portion 311 facing the driving assembly 2, a deformation groove 315 is formed on the other side of the second deformation portion 311, the second housing fixing portion 313 is fixedly connected with the front end of the rotating housing 32, and the deformation groove 315 is located at a position close to the front end of the rotating housing 32;

the front end of the rotating housing 32 can press the second soft rubber ring 31 to make it elastically deformed, so that part of the second housing fixing portion 313 moves towards the connecting portion 312 close to the output end, the gap between the deformation grooves 315 of the part becomes smaller, when rotating, part of the second housing fixing portion 313 continuously moves towards the connecting portion 312 close to the output end, the gap between the deformation grooves 315 of the part becomes smaller, and part of the second housing fixing portion 313 continuously moves away from the connecting portion 312 close to the output end, the gap between the deformation grooves 315 of the part becomes larger, thereby achieving the eccentric effect, and by adopting the design of the second soft rubber ring 31, the washing machine can achieve the eccentric rotating effect of the driving roller body by adopting an elastic part, and the rotating drum has the advantages of simple structure, low production cost and low maintenance cost.

As shown in fig. 1 to 11, the eccentric assembly 3 in this embodiment further includes a soft rubber fixing ring 33, where the soft rubber fixing ring 33 is disposed in the rotating housing 32 and can be used to fix the second housing fixing portion 313 in the rotating housing 32, a connecting member 35 is further disposed between the soft rubber fixing ring 33 and the rotating housing 32, and the soft rubber fixing ring 33 and the rotating housing 32 are detachably connected by the connecting member 35, and an avoidance hole or an avoidance gap capable of avoiding the connecting member 35 is further disposed on the second housing fixing portion 313;

preferably, the connecting member 35 includes a connecting post and a connecting screw, the connecting post is disposed in the rotating housing 32, the soft rubber fixing ring 33 is assembled on the free end of the connecting post, and then the connecting screw passes through the soft rubber fixing ring 33 to be in threaded connection with the connecting post, so that the soft rubber fixing ring 33 and the second soft rubber ring 31 are assembled in the rotating housing 32.

Preferably, the driving assembly 2 comprises a motor support 21 and a driving motor 22, the driving motor 22 is provided with an output shaft 23, the outer side wall of the water tank 51 is provided with an assembly hole, the motor support 21 is arranged at the assembly hole in a sealing mode, the motor support 21 extends into the water tank 51, part of the motor support 21 extends into the rotating shell 32, part of the driving motor 22 is arranged in the motor support 21, the output shaft 23 penetrates through the motor support 21 and extends to the second soft rubber ring 31, a motor coupling sleeve is fixedly arranged on the outer side wall of the output shaft 23, and the positioning boss 231 is arranged on the motor coupling sleeve.

The foregoing examples are provided to further illustrate the technical contents of the present utility model for the convenience of the reader, but are not intended to limit the embodiments of the present utility model thereto, and any technical extension or re-creation according to the present utility model is protected by the present utility model. The protection scope of the utility model is subject to the claims.

Claims (10)

1. A dynamic balancing device of a washing machine, characterized in that: the dynamic balancing device is arranged on a roller body (1) and a driving component (2) of the washing machine, and comprises:

the eccentric assembly (3) is arranged between the driving assembly (2) and the roller body (1), and the eccentric assembly (3) can enable the driving assembly (2) to drive the roller body (1) to make eccentric motion;

an elastic component (4) arranged between the roller body (1) and the washing machine shell (5),

the elastic component (4) can elastically deform along with the movement of the roller body (1).

2. The dynamic balancing unit of a washing machine as claimed in claim 1, wherein: the eccentric component (3) and the elastic component (4) are respectively arranged at two ends of the roller body (1).

3. The dynamic balancing unit of a washing machine as claimed in claim 1, wherein: the elastic component (4) includes first soft rubber ring (41), first soft rubber ring (41) are including cylinder fixed part (411), first deformation portion (412) and first casing fixed part (413) that set gradually, cylinder fixed part (411) are connected with cylinder body (1), first casing fixed part (413) are connected with washing machine casing (5).

4. A dynamic balancing unit of a washing machine as claimed in claim 3, wherein: the first soft rubber ring (41) is of a disc-like structure, the roller fixing portion (411) is arranged on the inner side of the first deformation portion (412), and the first shell fixing portion (413) is arranged on the outer side of the first deformation portion (412).

5. The dynamic balancing unit of a washing machine as claimed in claim 4, wherein: the first deformed portion (412) has a circular arc-shaped cross-section.

6. The dynamic balancing unit of a washing machine as claimed in claim 1, wherein: the eccentric assembly (3) comprises a second soft rubber ring (31) arranged at the output end of the driving assembly (2) and a rotating shell (32) sleeved outside the second soft rubber ring (31), the rotating shell (32) is fixedly connected with the roller body (1), and the second soft rubber ring (31) is fixedly connected with the output end of the driving assembly (2).

7. The dynamic balancing unit of a washing machine as claimed in claim 6, wherein: the second soft rubber ring (31) comprises a second deformation part (311), an output end connecting part (312) concentrically arranged on the outer side of the second deformation part (311) and a second shell fixing part (313) concentrically arranged on the inner side of the second deformation part (311), the output end connecting part (312) is connected with the output end of the driving assembly (2), and the second shell fixing part (313) is fixedly connected with the rotating shell (32).

8. The dynamic balancing unit of a washing machine as claimed in claim 7, wherein: the eccentric assembly (3) further comprises a soft rubber fixing ring (33), the soft rubber fixing ring (33) is arranged in the rotary shell (32) and can be used for fixing a second shell fixing part (313) in the rotary shell (32), a connecting member (35) is further arranged between the soft rubber fixing ring (33) and the rotary shell (32), the soft rubber fixing ring and the rotary shell are detachably connected through the connecting member (35), and an avoidance hole or an avoidance gap capable of avoiding the connecting member (35) is further arranged on the second shell fixing part (313).

9. A drum assembly of a washing machine, characterized in that: the dynamic balance device comprises a roller body (1) and the dynamic balance device according to any one of claims 1 to 8, wherein a rotating shaft component (11) is arranged on the roller body (1), the rotating shaft component (11) is connected with an elastic component (4), a rotating part (12) is further arranged on the roller body (1), and the rotating part (12) is connected with an eccentric component (3).

10. A washing machine, characterized in that: the washing machine comprises a washing machine shell (5), a driving assembly (2) and the roller assembly according to claim 9, wherein the washing machine shell (5) comprises a water tank (51) and a shell (52), the water tank (51) is arranged in the shell (52) to form an assembly cavity (53), the driving assembly (2) is arranged in the assembly cavity (53), the roller assembly is arranged in the water tank (51), the output end of the driving assembly (2) extends into the water tank (51) and is connected with the eccentric assembly (3), and the elastic assembly (4) is connected with the side wall of the water tank (51).