CN211340098U

CN211340098U - Washing machine rotating shaft vibration reduction component, structure and roller washing machine

Info

Publication number: CN211340098U
Application number: CN201922013914.2U
Authority: CN
Inventors: 许�鹏; 汪随
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-08-25
Anticipated expiration: 2029-11-20

Abstract

The utility model relates to a rotary shaft vibration damping component of a washing machine, a structure and a roller washing machine, wherein, the rotary shaft vibration damping component comprises a bearing, a vibration absorber frame and a plurality of buffer parts; wherein, the vibration absorber is sleeved on the circumference of the bearing; the plurality of buffer pieces are arranged between the bearing and the vibration absorber frame along the radial direction, so that a vibration absorbing cavity is formed between the bearing and the vibration absorber frame; the utility model designs a washing machine pivot damping part, damping structure for the single free system of current washing machine pivot has become a multi freedom system, and many free systems can better absorb the pivot and rotate radial and tangential vibration that the in-process produced at a high speed, thereby can effectually avoid drum type washing machine at high-speed dehydration in-process, and the complete machine vibration is too big with the noise, improves the travelling comfort and the experience of product and feels.

Description

Washing machine rotating shaft vibration reduction component, structure and roller washing machine

Technical Field

The utility model relates to a washing machine technical field especially relates to a washing machine pivot damping part, structure and drum type washing machine.

Background

The main reason is that the vibration of the rotating shaft of the inner barrel is increased due to the eccentricity of the inner barrel, the comfort and reliability of the whole machine are affected by the overlarge vibration of the rotating shaft, and even if the ball bearing is adopted in the drum washing machine, the vibration of the rotating shaft at a high rotating speed cannot be effectively inhibited.

Dynamic vibration absorption is a common effective vibration absorption means in engineering practice, and is particularly used for solving the problem of large system vibration.

Among the prior art, chinese patent CN207814334U discloses an axial vibration damper, include along the bearing radially from inside to outside in proper order install fixed inner ring, elastic damping spare and outer loop, when at equipment operation in-process, the vibration accessible elastic damping spare of its radial direction is eliminated, but this utility model only adopts single damping material to carry out the damping, and it is not obvious to inhale the effect of shaking.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem of the vibration of the rotating shaft between the inner barrel and the outer barrel of the washing machine.

The utility model discloses a main aim at provides a washing machine pivot damping part specifically includes following scheme:

a vibration damping component of a rotary shaft of a washing machine comprises a bearing, a vibration absorber frame and a plurality of buffer parts; the vibration absorber frame is sleeved on the circumferential direction of the bearing; the plurality of buffer members are radially disposed between the bearing and the absorber frame such that a shock-absorbing chamber is formed between the bearing and the absorber frame.

Furthermore, the buffer part is a composite spring, a bearing ejector rod is arranged on the outer wall of the bearing, an inner frame ejector rod is arranged on the inner wall of the vibration absorber frame, one end of the composite spring is sleeved on the bearing ejector rod, and the other end of the composite spring is sleeved on the inner frame ejector rod.

Furthermore, the buffer part is a composite spring, a first groove is formed in the outer wall of the bearing, a second groove is formed in the inner wall of the vibration absorber frame, one end of the composite spring is arranged in the first groove, and the other end of the composite spring is arranged in the second groove.

Further, the buffer part is a composite spring; a first groove is formed in the outer wall of the bearing, an inner frame ejector rod is arranged on the inner wall of the vibration absorber frame, one end of the composite spring is arranged in the first groove, and the other end of the composite spring is sleeved on the inner frame ejector rod; or a bearing ejector rod is arranged on the outer wall of the bearing, a second groove is formed in the inner wall of the vibration absorber frame, one end of the composite spring is sleeved on the bearing ejector rod, and the other end of the composite spring is arranged in the second groove.

Further, the vibration absorber frame includes a vibration absorber inner frame and a vibration absorber outer frame; the outer frame of the vibration absorber is sleeved on the outer wall of the inner frame of the vibration absorber; and a damping ring is arranged between the inner frame of the vibration absorber and the outer frame of the vibration absorber.

Furthermore, the damping ring is a rubber ring, and a concave cavity is formed on the outer wall of the rubber ring.

Further, the composite spring comprises a rubber elastic body and a metal spiral spring; the metal spiral spring is embedded in the rubber elastic body.

Further, the compound springs include four; the four composite springs are uniformly distributed in the vibration absorption cavity and are fixedly connected between the bearing and the vibration absorber frame through the ejector rod.

Further, the bearing is a rolling bearing.

Another object of the present invention is to provide a vibration damping structure for a rotating shaft of a washing machine, which comprises an inner cylinder, a rotating shaft of a washing machine, an outer cylinder and a vibration damping component; the vibration damping component is the vibration damping component of the rotating shaft of the washing machine; the vibration damping component is arranged on the outer cylinder; one end of the rotating shaft of the washing machine is arranged on the inner barrel, and the other end of the rotating shaft of the washing machine is in transmission connection with a bearing on the vibration damping component.

Another object of the present invention is to provide a drum washing machine, which comprises a vibration damping structure, wherein the vibration damping structure is the above-mentioned vibration damping structure for the rotating shaft of the washing machine.

The utility model designs a washing machine pivot damping part, damping structure for the single free system of current washing machine pivot has become a multi freedom system, and many free systems can better absorb the pivot and rotate radial and tangential vibration that the in-process produced at a high speed, thereby can effectually avoid drum type washing machine at high-speed dehydration in-process, and the complete machine vibration is too big with the noise, improves the travelling comfort and the experience of product and feels.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view illustrating an assembly of an inner drum and an outer drum of a drum washing machine according to embodiment 1 of the present invention;

fig. 2 is a schematic structural view of a vibration damping component of a rotating shaft of a washing machine provided in embodiment 1 of the present invention;

fig. 3 is an exploded view of a structure of a vibration damping component of a rotating shaft of a washing machine provided in embodiment 1 of the present invention.

In the figure: 1. an inner barrel; 11. a rotating shaft of the washing machine; 2. a bearing; 21. a bearing outer ejector rod; 3. an outer cylinder; 4. an inner frame of the vibration absorber; 41. a top rod in the frame; 5. a damping ring; 6. a vibration absorber outer frame; 7. a compound spring; 8. the vibration absorption cavity.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or quantity or location.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

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

Example 1

As shown in fig. 1 to 3, the present invention provides a vibration damping member for a rotary shaft of a washing machine, which can be applied to a rotary shaft of an existing washing machine to damp vibration of the rotary shaft under centrifugal force of the washing machine; the rotating shaft vibration reduction component specifically comprises a bearing 2, a vibration absorber frame and a plurality of buffer parts; preferably, the bearing 2 is a rolling bearing; specifically, the vibration absorber frame is sleeved on the circumferential direction of the bearing 2 and can generate a radial buffer distance relative to the bearing 2; further, a plurality of buffer members are respectively disposed between the bearing 2 and the vibration absorber frame in a radial direction, so that a vibration absorbing chamber 8 is formed between the bearing 2 and the vibration absorber frame, the vibration absorbing chamber 8 allowing the rotation shaft 11 to form a buffer distance under the vibration of the centrifugal force of the washing machine; by adopting the scheme, the utility model provides a scheme carries out the optimal design through the bearing to the pivot, adopts the second grade to inhale the form of shaking, directly shakes the vibration source and shakes, compares other damping modes, has more obvious improvement effect to the vibration and the noise of washing machine complete machine for washing machine is in the dehydration process, through the vibration of restraining the pivot, can play key effect to the reduction of washing machine complete machine noise and vibration; the utility model provides a washing machine pivot damping part is applied to the washing machine pivot, utilizes spring, damping, quality principle to inhale the shake, reduces the vibration of inner tube from the transfer path to improve the vibration isolation of washing machine complete machine and fall the level of making an uproar, improve washing machine and use experience and feel.

Preferably, with reference to the above solutions, as shown in fig. 1 to 3, in this embodiment, the buffer is a composite spring 7, the outer wall of the bearing 2 is provided with a bearing post rod 21, and the inner wall of the vibration absorber frame is provided with an inner frame post rod 41, so that one end of the composite spring 7 can be sleeved on the bearing post rod 21, and the other end of the composite spring 7 can be sleeved on the inner frame post rod 41 to form a fixed positioning structure, so as to prevent the vibration absorber frame or the bearing 2 from coming off; further, the vibration absorber frame includes a vibration absorber inner frame 4 and a vibration absorber outer frame 6; the composite spring, the bearing and the vibration absorber frame are connected through the ejector rod to form two single-degree-of-freedom mass-damping-spring systems, damping rubber 10 is vulcanized between the vibration absorber inner frame 4 and the vibration absorber outer frame 6 and is tightly attached to the inner frame and the outer frame to form secondary vibration isolation, and vibration of the rotating shaft is transmitted to the outer cylinder as small as possible.

Preferably, in combination with the above solutions, as shown in fig. 1 to 3, in this embodiment, the buffer is a composite spring 7, the outer wall of the bearing 2 is provided with a first groove, and the inner wall of the vibration absorber frame is provided with a second groove, so that one end of the composite spring 7 is disposed in the first groove, and the other end of the composite spring 7 is disposed in the second groove, thereby avoiding the bearing and the vibration absorber frame from coming off; by adopting the scheme, the composite spring 7 can be positioned in the vibration absorption cavity 8, and the bearing 2 and the vibration absorber frame are prevented from being separated; further, the vibration absorber frame includes a vibration absorber inner frame 4 and a vibration absorber outer frame 6; the composite spring 7, the bearing and the vibration absorber frame are connected through a mandril to form two single-degree-of-freedom mass-damping-spring systems, and damping rubber 10 is vulcanized between the vibration absorber inner frame 4 and the vibration absorber outer frame 6 and is tightly attached to the inner frame and the outer frame to form secondary vibration isolation, so that the vibration of the rotating shaft is transmitted to the outer cylinder 3 as small as possible; further, the vibration absorber frame includes a vibration absorber inner frame 4 and a vibration absorber outer frame 6; the composite spring 7, the bearing 11 and the vibration absorber frame are connected through a mandril to form two single-degree-of-freedom mass-damping-spring systems, and damping rubber 10 is vulcanized between the vibration absorber inner frame 4 and the vibration absorber outer frame 6 and is tightly attached to the inner frame and the outer frame to form secondary vibration isolation, so that the vibration of the rotating shaft is transmitted to the outer cylinder as small as possible.

Preferably, in combination with the above scheme, in the present embodiment, the buffer member is a composite spring 7; a first groove is formed in the outer wall of the bearing 2, an inner frame ejector rod 41 is arranged on the inner wall of the vibration absorber frame, one end of the composite spring 7 is arranged in the first groove, and the other end of the composite spring 7 is sleeved on the inner frame ejector rod 41; or, the outer wall of the bearing 2 is provided with a bearing ejector rod 21, the inner wall of the vibration absorber frame is provided with a second groove, one end of the composite spring 7 is sleeved on the bearing ejector rod 21, and the other end of the composite spring 7 is arranged in the second groove; by adopting the scheme, the composite spring 7 can be positioned in the vibration absorption cavity 8, and the bearing 2 and the vibration absorber frame are prevented from being separated; further, the vibration absorber frame includes a vibration absorber inner frame 4 and a vibration absorber outer frame 6; the composite spring 7, the bearing 11 and the vibration absorber frame are connected through a mandril to form two single-degree-of-freedom mass-damping-spring systems, and damping rubber 10 is vulcanized between the vibration absorber inner frame 4 and the vibration absorber outer frame 6 and is tightly attached to the inner frame and the outer frame to form secondary vibration isolation, so that the vibration of the rotating shaft is transmitted to the outer cylinder as small as possible.

In the above scheme, utilize spring-damping-mass system, promoted the utility model discloses washing machine pivot system of shaking is inhaled can absorb the vibration that comes from the inner tube pivot better under the condition that does not influence drum type washing machine shafting part assembly difficulty to make the vibration and the noise of whole machine can both obtain obvious improvement.

Preferably, in combination with the above, as shown in fig. 1 to 3, in the present embodiment, the vibration absorber frame includes the vibration absorber inner frame 4 and the vibration absorber outer frame 6; specifically, the outer absorber frame 6 is sleeved on the outer wall of the inner absorber frame 4; a damping ring 5 is arranged between the inner vibration absorber frame 4 and the outer vibration absorber frame 6; further, the damping ring 5 is a rubber ring, a concave cavity 51 is formed on the outer wall of the rubber ring, and the concave cavity 51 is arranged to effectively moderate the vibration between the inner absorber frame 4 and the outer absorber frame 6, thereby playing a role of buffering in the whole vibration damping structure.

Preferably, in combination with the above, as shown in fig. 1 to 3, in the present embodiment, the composite spring 7 includes a rubber elastic body and a metal coil spring; the metal spiral spring is embedded in the rubber elastic body, so that the quality and the service life of the composite spring 7 can be effectively improved.

Preferably, in combination with the above solution, as shown in fig. 1 to 3, in the present embodiment, the composite springs 7 include four; four composite springs are uniformly distributed in the vibration absorption cavity 8 and are fixedly connected between the bearing 2 and the vibration absorber frame through the ejector rod, and the four composite springs are used for buffering and absorbing vibration in four directions.

Correspondingly, in combination with the above scheme, as shown in fig. 1 to 3, the utility model provides a vibration damping structure for a rotating shaft of a washing machine, which comprises an inner cylinder 1, a rotating shaft 11 of the washing machine, an outer cylinder 3 and a vibration damping component; wherein, the vibration damping component is the vibration damping component of the rotating shaft of the washing machine; further, a vibration damping member is provided on the outer cylinder 3; one end of a rotating shaft 11 of the washing machine is arranged on the inner barrel 1, and a bearing 2 on a damping component at the other end of the rotating shaft 11 of the washing machine is in transmission connection; specifically, one end of a rotating shaft 11 of the washing machine is fixed on the inner barrel 1, and the other end of the rotating shaft 11 of the washing machine penetrates through a bearing 2 to be in transmission connection with a driving device on the outer barrel 3; adopt above-mentioned scheme, be equipped with the damping structure between bearing and pivot, can effectively reduce the pivot and at the produced great vibration of washing machine dehydration in-process, through carrying out improved design to bearing unit, install a spring mass system additional around traditional ball bearing for absorb the vibration of dehydration in-process pivot, thereby play the effect of damping vibration, reduce the noise that the vibration brought.

Correspondingly, in combination with the above scheme, the utility model provides a drum washing machine, which comprises a vibration damping structure, wherein the vibration damping structure is the vibration damping structure of the rotating shaft of the washing machine; the utility model provides a rotary shaft vibration damping structure of a washing machine, which can replace the traditional ball bearing of a drum washing machine; by attaching a mass spring resonance system to the vibrating object, the additional system generates a vibration 180 DEG out of phase with the main system, thereby attenuating the vibration of the main system.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A vibration damping component of a rotating shaft of a washing machine is characterized by comprising a bearing (2), a vibration absorber frame and a plurality of buffering parts; the vibration absorber frame is sleeved on the circumferential direction of the bearing (2); the plurality of buffers are radially arranged between the bearing (2) and the shock absorber frame such that a shock absorbing cavity (8) is formed between the bearing (2) and the shock absorber frame.

2. The washing machine rotating shaft vibration damping component according to claim 1, characterized in that the buffer is a composite spring (7), a bearing ejector rod (21) is arranged on the outer wall of the bearing (2), an inner frame ejector rod (41) is arranged on the inner wall of the vibration absorber frame, one end of the composite spring (7) is sleeved on the bearing ejector rod (21), and the other end of the composite spring (7) is sleeved on the inner frame ejector rod (41).

3. The washing machine spindle vibration damping member according to claim 1, wherein the damping member is a composite spring (7), a first groove is provided on an outer wall of the bearing (2), a second groove is provided on an inner wall of the vibration absorber frame, one end of the composite spring (7) is disposed in the first groove, and the other end of the composite spring (7) is disposed in the second groove.

4. The washing machine spindle damping component according to claim 1, characterized in that the damping member is a compound spring (7); a first groove is formed in the outer wall of the bearing (2), an inner frame ejector rod (41) is arranged on the inner wall of the vibration absorber frame, one end of the composite spring (7) is arranged in the first groove, and the other end of the composite spring (7) is sleeved on the inner frame ejector rod (41); or a bearing ejector rod (21) is arranged on the outer wall of the bearing (2), a second groove is formed in the inner wall of the vibration absorber frame, one end of the composite spring (7) is sleeved on the bearing ejector rod (21), and the other end of the composite spring (7) is arranged in the second groove.

5. The washing machine spindle vibration damping device according to claim 1, wherein the vibration absorber frame comprises a vibration absorber inner frame (4) and a vibration absorber outer frame (6); the outer absorber frame (6) is sleeved on the outer wall of the inner absorber frame (4); and a damping ring (5) is also arranged between the inner vibration absorber frame (4) and the outer vibration absorber frame (6).

6. The washing machine spindle vibration damping part according to claim 5, characterized in that the damping ring (5) is a rubber ring, and a cavity (51) is formed on the outer wall of the rubber ring.

7. The washing machine shaft vibration damping member as claimed in any one of claims 2 to 4, wherein the compound spring comprises a rubber elastic body and a metal coil spring; the metal spiral spring is embedded in the rubber elastic body.

8. The washing machine spindle vibration damping device according to any one of claims 2 to 4, characterized in that the compound springs (7) comprise four; the four composite springs are uniformly distributed in the vibration absorption cavity (8) and are fixedly connected between the bearing (2) and the vibration absorber frame through the ejector rod.

9. The washing machine spindle vibration damping member according to any one of claims 1 to 6, characterized in that the bearing (2) is a rolling bearing.

10. A vibration damping structure of a rotating shaft of a washing machine is characterized by comprising an inner barrel (1), a rotating shaft (11) of the washing machine, an outer barrel (3) and a vibration damping component; the vibration damping component is a washing machine rotating shaft vibration damping component as claimed in any one of the claims 1 to 9; the vibration damping component is arranged on the outer cylinder (3); one end of the washing machine rotating shaft (11) is arranged on the inner barrel (1), and the other end of the washing machine rotating shaft (11) is in transmission connection with the bearing (2) on the vibration damping component.

11. A drum washing machine comprising a washing machine shaft damping member according to any one of claims 1 to 9 or a washing machine shaft damping structure according to claim 10.