Washing machine roller supporting structure

Abstract

The utility model relates to the technical field of washing machine drum supporting structures, and provides a washing machine drum supporting structure which can reduce drum swing or vibration transmitted to an outer drum and improve the stability of the structure, and comprises an inner drum, the outer drum and a step-by-step swing or vibration structure used for reducing the swing or vibration of the inner drum transmitted to the outer drum.

Description

Technical Field

[0001] The utility model relates to the technical field of washing machine drum supporting structures, and in particular to a washing machine drum supporting structure. Background Art

[0002] In the prior art, drums are often found in washing machines, blenders, screening machines, mixers, etc., and are used to load items and achieve corresponding purposes by rotating. For example, drum washing machines use the huge centrifugal force generated by the inner drum (i.e., drum) when rotating to drive the clothes to rotate, and the combined effect of detergent and water makes the clothes clean.

[0003] When the drum is rotating, if it is used in a drum washing machine, there will be clothes inside, which will cause the drum to rotate unbalanced, resulting in vibration and swing or vibration. Since the inner and outer drums of the drum washing machine are usually sealed at the back, a sealing structure is usually set, so the swing or vibration of the drum will be transmitted to the outer drum, causing the static outer drum to swing or vibrate, affecting the stability of the overall structure of the equipment and the space utilization rate. Utility Model Content

[0004] The utility model provides a washing machine drum supporting structure, which can reduce the drum swing or vibration transmitted to the outer drum, and improve the stability of the structure and the space utilization rate.

[0005] The technical solution of the utility model is as follows:

[0006] A washing machine drum support structure comprises a drum and an outer tub, and comprises a step-by-step swing or vibration structure for reducing the transmission of the swing or vibration of the drum to the outer tub.

[0007] Furthermore, the step-by-step swing or vibration structure includes a first connecting member for connecting the drum, an outer cylinder connecting structure for connecting the outer cylinder, and a step-by-step swing or vibration member, and the step-by-step swing or vibration member is respectively connected to the first connecting member and the outer cylinder connecting structure.

[0008] Furthermore, it comprises a support shaft, wherein the support shaft sleeve is provided with a connection structure for connecting to the first connection member.

[0009] Furthermore, sealing structures are provided on both sides of the connection structure and on both sides of the step-by-step swing or vibration member.

[0010] Furthermore, it includes a driving mechanism for driving the drum of the washing machine to rotate.

[0011] Furthermore, the driving mechanism includes a rotating wheel and a positioning piece, the rotating wheel is sleeved on the outer wall of the first connecting member, and the two ends of the positioning piece are respectively embedded in the outer wall of the first connecting member and the inner wall of the rotating wheel shaft hole.

[0012] Furthermore, the support shaft is a hollow tubular structure.

[0013] Furthermore, the step-by-step swinging or vibrating member and the connecting structure are all spherical bearings or fisheye bearings or self-aligning bearings.

[0014] The working principle and beneficial effects of the utility model are:

[0015] The utility model can reduce the drum swing or vibration transmitted to the outer cylinder by arranging the step-by-step swing or vibration structure, reduce the swing or vibration amplitude of the outer cylinder, and improve the stability and space utilization of the connection between the outer cylinder and various structures.

[0016] At the same time, the outer cylinder can be stationary or rotated relative to the drum according to design requirements, thereby improving the flexibility of the equipment during application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 It is a structural schematic diagram of embodiment 1;

[0019] Figure 2 It is a partial schematic diagram of the first embodiment.

[0020] In the figure: 1. roller; 2. outer cylinder; 3. first connecting member; 31. second connecting member; 4. supporting shaft; 5. connecting structure; 6. step-by-step swing or vibration member; 7. sealing structure; 81. rotating wheel; 82. positioning plate; 9. bracket. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1

[0023] like Figure 1-2 As shown, a washing machine drum support structure is mainly used for a washing machine with a drum 1, and can also be used for equipment with similar structures such as a screening machine and a grinder that require a drum 1 and an outer drum 2. It mainly includes a drum 1 and an outer drum 2. In order to reduce the transmission of the swing or vibration of the drum 1 to the outer drum 2, this embodiment is provided with a step-by-step swing or vibration structure.

[0024] Specifically, the step-by-step swing or vibration structure in this embodiment includes a first connection member 3 for connecting the drum 1, a second connection member 31 for connecting the outer cylinder 2, and a step-by-step swing or vibration member 6. The first connection member 3 and the second connection member 31 are respectively used to extend the connection ends of the drum 1 and the outer cylinder 2, play a supporting and connecting role, and provide a space for setting the connection structure 5, so that the installation structure of the drum 1 and the outer cylinder 2 is more stable. The step-by-step swing or vibration member 6 in this embodiment is located between the first connection member 3 and the second connection member 31 (the second connection member 31 can preferably be a tubular structure, and the structural stability is improved by increasing the connection area), respectively connecting the first connection member 3 and the second connection member 31, and then playing a role in reducing vibration transmission.

[0025] On the basis of the above embodiment, as another embodiment, a support shaft 4 can be added (if a support shaft 4 is added, the first connecting member 3 can also preferably be a tubular structure, which is sequentially sleeved on the outside of the support shaft 4 to increase the connection area, thereby improving the structural stability; and preferably a hollow structure, which can be connected to the inside of the drum 1 to interact with solid, liquid, gas and other media, and assist in washing, drying and other tasks), the support shaft 4 is connected to the bracket 9 of the washing machine for support, and is sleeved with a connecting structure 5 for connecting the first connecting member 3, which serves as the main supporting structure of the drum 1 and maintains an independent relationship with the rotation of the drum 1 (the support shaft 4 itself is stationary).

[0026] Therefore, in order to simplify the design and compact the structure, avoid unnecessary uncertainties, and save costs, the step-by-step swing or vibrating member 6 in this embodiment can be a spherical bearing, a fisheye bearing, or a self-aligning bearing, and a self-aligning bearing is preferred. It can withstand radial loads and a small amount of axial loads. It is particularly suitable for the inner drum of a washing machine, and can still run smoothly even in the case of shaking. It has low maintenance requirements, low vibration level, and low noise level. In order to ensure the sealing of the step-by-step swing or vibrating member 6, sealing structures 7 are also provided on both sides of the step-by-step swing or vibrating member 6.

[0027] The connection structure 5 can use ordinary bearings to support the rotation of the first connection member 3, or preferably a spherical bearing, a fisheye bearing or a self-aligning bearing. The swing or vibration transmitted from the drum 1 to the support shaft 4 is further reduced, and the structural stability of the support shaft 4 is improved. Spherical bearings, fisheye bearings, and self-aligning bearings each have their own characteristics. Self-aligning bearings can be used as the best choice, and sealing structures 7 are set on both sides of the connection structure 5. When the inner drum vibrates, even swings or vibrates, it can automatically adjust to reduce the load on the support shaft 4 and the connection structure 5.

[0028] The sealing structures 7 on both sides of the connecting structure 5 and the step-by-step swing or vibrating member 6 may use air seals, water seals and other seals to reduce the risk of medium leakage at this location.

[0029] In addition, the present embodiment further includes a driving mechanism for driving the washing machine drum 1 to rotate, preferably, but not limited to, using a motor-driven belt transmission structure to drive the drum 1 to rotate. Specifically, the driving mechanism in the present embodiment includes a rotating wheel 81 (i.e., a driven wheel) and a positioning piece 82 (i.e., a keyway structure, which is stable and mature in structure). The rotating wheel 81 is sleeved on the outer wall of the first connecting member 3, and then the two ends of the positioning piece 82 are respectively embedded in the outer wall of the first connecting member 3 and the inner wall of the shaft hole of the rotating wheel 81, so as to realize the linkage between the first connecting member 3, the drum 1 and the rotating wheel 81.

[0030] Through the design of this embodiment, in addition to reducing the transmission of the swing or vibration of the drum 1 to the outer drum 2, the sealing structure 7 is used to achieve the sealing of the drum 1 and the outer drum 2. If the self-aligning bearing or other bearings are used to achieve the step-by-step swing or vibration of the drum 1 and the outer drum 2, the axial displacement or radial displacement between the outer drum 2 and the drum 1, and between the first connecting member 3 and the support shaft 4 can also be avoided, and the sealing difficulty between the outer drum 2 and the drum 1, and between the first connecting member 3 and the support shaft 4 is reduced. At the same time, compared with the method of connecting the outer drum 2 to the bracket 9 and not connecting it to the drum 1, the design difficulty and manufacturing cost of supporting and fixing the outer drum 2 and sealing between the drum 1 are reduced, and the number of parts in the wet area inside the washing machine is reduced. Finally, the volume of the outer drum 2 in the bracket 9 is maximized, and the volume of the drum 1 is increased at the same time.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A washing machine drum support structure, comprising a drum (1) and an outer drum (2), characterized in that: The invention comprises a driving mechanism for driving a washing machine drum (1) to rotate, and a step-by-step swing or vibration structure for reducing the swing or vibration of the drum (1) being transmitted to an outer drum (2).

2. A washing machine drum support structure according to claim 1, characterized in that: The step-by-step swing or vibration structure comprises a first connecting member (3) for connecting the drum (1), a second connecting member (31) for connecting the outer cylinder (2), and a step-by-step swing or vibration member (6), wherein the step-by-step swing or vibration member (6) is respectively connected to the first connecting member (3) and the second connecting member (31).

3. A washing machine drum support structure according to claim 2, characterized in that: It comprises a support shaft (4), wherein the support shaft (4) is sleeved with a connection structure (5) for connecting to a first connection member (3).

4. A washing machine drum support structure according to claim 3, characterized in that: Sealing structures (7) are provided on both sides of the connection structure (5) and on both sides of the step-by-step swing or vibration member (6).

5. A washing machine drum support structure according to claim 4, characterized in that: The driving mechanism comprises a rotating wheel disc (81) and a positioning piece (82); the rotating wheel disc (81) is sleeved on the outer wall of the first connecting member (3); and the two ends of the positioning piece (82) are respectively embedded in the outer wall of the first connecting member (3) and the inner wall of the shaft hole of the rotating wheel disc (81).

6. A washing machine drum support structure according to claim 3, characterized in that: The support shaft (4) is in the form of a hollow tube.

7. A washing machine drum support structure according to claim 2 or 3, characterized in that: The step-by-step swinging or vibrating member (6) and the connecting structure (5) are both spherical bearings, fisheye bearings or self-aligning bearings.

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