Clutch-free transmission structure of washing machine

Abstract

The utility model discloses a clutch-free transmission structure of a washing machine, which belongs to the technical field of washing machines and comprises a motor, a power spindle in driving connection with the motor and an impeller in driving connection with the power spindle, a spindle sleeve is arranged on the periphery of the power spindle, and an inner barrel is in driving connection with the spindle sleeve; a transmission disc is arranged between the power main shaft and the main shaft sleeve, and a damping material layer playing a damping role is arranged between the transmission disc and the main shaft sleeve. By means of the damping material layer between the transmission disc and the main shaft sleeve, damping type transmission matching can be achieved between the transmission disc and the main shaft sleeve so as to reduce transmission friction and abnormal sound, and meanwhile rotation resistance torque between the transmission disc and the main shaft sleeve can generate different changes. Therefore, the impeller and the inner barrel can perform frequent reverse delayed rotation to complete washing and perform synchronous rapid rotation to complete dewatering, and finally, the washing machine can realize washing and dewatering work under the condition that no clutch exists completely.

Description

Technical Field

[0001] The utility model relates to the technical field of washing machines, in particular to a clutch-free transmission structure of a washing machine. Background Art

[0002] The utility model patent with Chinese patent number CN202222640439.3 discloses a fully automatic washing machine without a clutch mechanism, which includes an outer barrel and an inner barrel, a pulsator is arranged at the bottom of the inner barrel, and the pulsator is connected with the power spindle, and also includes a bracket, a spindle sleeve and a spindle bearing arranged in the outer barrel, the bracket is connected to the bottom of the inner barrel, the bracket is sleeved on the spindle sleeve, and the bracket and the spindle sleeve are connected as one, and the spindle sleeve is sleeved on the power spindle through the spindle bearing. The above-mentioned washing machine realizes the washing and dehydration functions of the washing machine by setting the spindle sleeve and the spindle bearing, and utilizing the cooperation of the power spindle, the spindle bearing, the spindle sleeve and the bracket through inertia and friction. Although the washing machine can realize washing and dehydration without a clutch mechanism, the power spindle, the spindle bearing, the spindle sleeve and the bracket are driven by friction, and the generation of friction can easily cause wear between components, thereby affecting the service life of the washing machine, and the friction will also be accompanied by the appearance of abnormal noise, causing the washing machine to make noise when working. Therefore, it is necessary to further improve. Utility Model Content

[0003] The utility model aims to provide a clutch-free transmission structure of a washing machine to overcome the deficiencies in the prior art.

[0004] A clutchless transmission structure of a washing machine designed for this purpose includes a motor, a power main shaft drivingly connected to the motor, and a pulsator drivingly connected to the power main shaft. A main shaft sleeve is arranged on the periphery of the power main shaft, and an inner barrel is drivingly connected to the main shaft sleeve; a transmission plate is arranged between the power main shaft and the main shaft sleeve, and a damping material layer for damping is arranged between the transmission plate and the main shaft sleeve.

[0005] The transmission disc is fixedly arranged on the upper part of the power main shaft, and the main shaft sleeve is provided with a transmission matching part corresponding to the transmission disc, and the transmission disc and the transmission matching part are transmission matched.

[0006] The transmission matching part is arranged on the top of the main shaft sleeve; the power main shaft is sleeved with a bearing and is sleeved in the main shaft sleeve through the bearing, or the power main shaft is directly sleeved in the main shaft sleeve, and the power main shaft is then supported on the transmission matching part through the transmission disc.

[0007] The damping material layer is damping grease smeared between the transmission disc and the transmission matching part, and the transmission disc and the transmission matching part are matched by damping grease damping transmission.

[0008] A recess is arranged on the transmission disc and / or the transmission matching part, and the damping grease is stored in the recess.

[0009] The concave portion is in the shape of dots, lines, spirals, waves or a combination thereof.

[0010] One or more recesses are provided.

[0011] The damping material layer is a damping sheet arranged between the transmission disc and the transmission matching part, and the transmission disc and the transmission matching part are matched in a damping manner through the damping sheet.

[0012] The power output end of the motor is directly connected to the power spindle drive.

[0013] Alternatively, the motor uses the power spindle as the power output end.

[0014] Alternatively, the power output end of the motor is drivingly connected to a coupling and is drivingly connected to the power main shaft through the coupling.

[0015] The structure also includes an outer barrel; the inner barrel is located inside the outer barrel, and an inner barrel fixing plate is fixedly arranged at the bottom of the outer barrel, and a fixing hole is arranged on the inner barrel fixing plate; side wings extend from the periphery of the main shaft sleeve, and fixed matching holes are arranged on the side wings; the side wings rely on the bottom of the inner barrel fixing plate, and the fixing holes and the fixed matching holes are fixed and matched with each other through fasteners.

[0016] The utility model improves the above structure, and a transmission disk is arranged between the power main shaft and the main shaft sleeve, and utilizes the damping material layer between the transmission disk and the main shaft sleeve to achieve damping transmission cooperation between the transmission disk and the main shaft sleeve. Since the damping material layer has a lubricating effect, the transmission friction and abnormal noise between the transmission disk and the main shaft sleeve can be reduced, so that the operation of the washing machine is more stable and quiet, and the service life is longer. In addition, since the motor rotates in different directions and outputs different speeds during washing and dehydration, the rotational resistance torque between the transmission disk and the main shaft sleeve will produce different changes, so that the impeller and the inner barrel can frequently perform reverse delayed rotation to complete washing, and perform synchronous rapid rotation to complete dehydration, so that the washing machine can finally achieve washing and dehydration without a clutch. Since the washing machine does not need to be equipped with a clutch, the overall structure of the washing machine can be effectively simplified, the production cost can be reduced, and the practicality is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the assembly structure of a first application example of an embodiment of the utility model.

[0018] Figure 2 This is a schematic diagram of the assembly structure of the first application example of a motor, a power spindle, a transmission plate, a bearing, a spindle sleeve, a coupling, and an inner barrel fixing plate.

[0019] Figure 3 This is a schematic diagram of the assembly structure of the first application example of the power spindle and the transmission plate.

[0020] Figure 4 This is a schematic diagram of the assembly structure of the second application example of the power spindle and the transmission plate.

[0021] Figure 5 This is a schematic diagram of the structure of the main shaft sleeve.

[0022] Figure 6 The figure is a schematic diagram of the assembly structure of the second application example of the motor, power spindle, transmission plate, bearing, spindle sleeve, coupling and inner barrel fixing plate.

[0023] Figure 7 The third application example assembly structure diagram of the motor, power spindle, transmission plate, bearing, spindle sleeve, coupling, and inner barrel fixing plate. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] See also Figure 1-Figure 7 The clutchless transmission structure of the washing machine includes a motor 1, a power main shaft 2 drivingly connected to the motor 1, and a pulsator 23 drivingly connected to the power main shaft 2. A main shaft sleeve 3 is arranged on the periphery of the power main shaft 2, and an inner barrel 4 is drivingly connected to the main shaft sleeve 3; a transmission disk 5 is arranged between the power main shaft 2 and the main shaft sleeve 3, and a damping material layer for damping is arranged between the transmission disk 5 and the main shaft sleeve 3.

[0027] In this embodiment, a transmission disc 5 is arranged between the power main shaft 2 and the main shaft sleeve 3, and a damping material layer is used between the transmission disc 5 and the main shaft sleeve 3 to achieve damping transmission cooperation between the transmission disc 5 and the main shaft sleeve 3. Since the damping material layer has a lubricating effect, the transmission friction and abnormal noise between the transmission disc 5 and the main shaft sleeve 3 can be reduced, so that the operation of the washing machine is more stable and quiet, and the service life is longer. In addition, since the motor 1 rotates in different directions and outputs different speeds during washing and dehydration, the rotational resistance torque between the transmission disc 5 and the main shaft sleeve 3 will produce different changes, so that the impeller 23 and the inner barrel 4 can frequently perform reverse delayed rotation to complete washing, and perform synchronous rapid rotation to complete dehydration, so that the washing machine can finally achieve washing and dehydration without a clutch. Since the washing machine does not need to be equipped with a clutch, the overall structure of the washing machine can be effectively simplified, the production cost can be reduced, and the practicality is strong.

[0028] As a preferred solution of this embodiment, it may also have the following additional technical features:

[0029] The transmission disc 5 is fixedly arranged on the upper part of the power main shaft 2 , and the main shaft sleeve 3 is provided with a transmission matching portion 6 corresponding to the transmission disc 5 , and the transmission disc 5 and the transmission matching portion 6 are transmission matched.

[0030] The transmission fitting portion 6 is arranged on the top of the main shaft sleeve 3 .

[0031] like Figure 1 , Figure 2 , Figure 6 As shown, the power main shaft 2 is sleeved with a bearing 8, and is sleeved in the main shaft sleeve 3 through the bearing 8, that is, the power main shaft 2 rotates in the main shaft sleeve 3 through the bearing 8. Or, as Figure 7 As shown, the power spindle 2 is directly sleeved in the spindle sleeve 3 , that is, the power spindle 2 directly rotates in the spindle sleeve 3 .

[0032] During assembly, the power spindle 2 is also supported on the transmission mating portion 6 via the transmission disc 5 .

[0033] The damping material layer is damping grease smeared between the transmission disc 5 and the transmission matching part 6, and the transmission disc 5 and the transmission matching part 6 are matched with each other in a damping-type transmission through the damping grease.

[0034] By utilizing the damping effect of the damping grease, a damping transmission fit can be achieved between the transmission disc 5 and the transmission fit portion 6 .

[0035] A recess 9 is provided on the transmission plate 5 and / or the transmission matching portion 6 , and the damping grease is stored through the recess 9 .

[0036] The provision of the recess 9 can facilitate the storage of the damping grease and reduce the number of times the damping grease is applied.

[0037] The concave portion 9 is in a dot-shaped, straight-line-shaped, spiral-shaped, wavy-shaped or a combination thereof, that is, the concave portion 9 can be formed in a variety of different shapes.

[0038] Meanwhile, one or more recesses 9 are provided.

[0039] like Figure 3 As shown, the recess 9 is a linear groove, and a plurality of recesses 9 are provided. The plurality of recesses 9 are arranged on the transmission plate 5 and extend divergently along the periphery with the power main shaft 2 as the center.

[0040] like Figure 4 As shown, the recess 9 is an S-shaped groove, and there are a plurality of recesses 9 , which are arranged in a circular array on the transmission disk 5 with the power spindle 2 as the center.

[0041] like Figure 5 As shown, the recess 9 is an S-shaped groove, and a plurality of recesses 9 are provided. The plurality of recesses 9 are arranged on the transmission matching portion 6 and extend divergently along the periphery with the main shaft sleeve 3 as the center.

[0042] In this embodiment, the transmission plate 5 is made of wear-resistant material. The transmission plate 5 and the transmission matching part 6 can be added with a recess 9 for storing damping grease according to actual use requirements. The recess 9 can be in the shape of a groove or a hole, and the shape, size and number of the groove or hole are various.

[0043] In addition, the damping material layer can also be a damping plate arranged between the transmission disc 5 and the transmission matching part 6, and the transmission disc 5 and the transmission matching part 6 are matched with each other in a damping manner through the damping plate.

[0044] By utilizing the damping effect of the damping sheet, damping transmission cooperation can be achieved between the transmission plate 5 and the transmission cooperation part 6 .

[0045] In this embodiment, the motor 1 and the power spindle 2 can be driven together directly or indirectly.

[0046] like Figure 1 , Figure 2 As shown, the power output end of the motor 1 is drivingly connected to a coupling 10 , and is drivingly connected to the power main shaft 2 through the coupling 10 .

[0047] Or, if Figure 6 As shown, the power output end of the motor 1 and the power main shaft 2 are fixed to each other by a pin, so that the power output end of the motor 1 is directly connected to the power main shaft 2 for driving.

[0048] Or, if Figure 7 As shown, the power output end of the motor 1 and the power main shaft 2 are fixed to each other in a nested manner, so that the power output end of the motor 1 is directly connected to the power main shaft 2 by driving.

[0049] In addition, the motor 1 can also use the power main shaft 2 as the power output end to directly realize power output.

[0050] The structure also includes an outer barrel 11; the inner barrel 4 is located in the outer barrel 11, and an inner barrel fixing plate 12 is fixedly provided at the bottom thereof, and a fixing hole 13 is provided on the inner barrel fixing plate 12; a side wing 14 extends from the periphery of the main shaft sleeve 3, and a fixing matching hole 15 is provided on the side wing 14; the side wing 14 rests on the bottom of the inner barrel fixing plate 12, and the fixing hole 13 and the fixing matching hole 15 are fixedly matched with each other by fasteners.

[0051] Here’s how it works:

[0052] When the washing machine is in the washing operation, water enters the inner barrel 4 of the washing machine, and the motor 1 transmits torque through the power main shaft 2 to drive the impeller 23 to rotate forward and reversely, so as to achieve the washing of clothes. Because the inner barrel 4 is mounted on the power main shaft 2 through the inner barrel fixing plate 12 and the main shaft sleeve 3, and the power main shaft 2 is connected to the main shaft sleeve 3 through the transmission disc 5, the inner barrel 4 is in a freely rotatable state, and it will not immediately follow the impeller 23 to rotate in the same direction. In this process, the damping force of the damping material layer between the transmission disc 5 and the transmission matching part 6 is less than or equal to the rotational resistance torque suffered by the main shaft sleeve 3 and the inner barrel 4. Therefore, the inner barrel 4 is delayed to follow the rotation due to the damping material layer and friction between the transmission disc 5 and the transmission matching part 6, and the water flow stirred by the impeller 23 will also drive the inner barrel 4 to delay the rotation. Because the impeller 23 rotates forward and reverse continuously, and the inner barrel 4 delays the rotation continuously, the impeller 23 and the inner barrel 4 will frequently rotate in the opposite direction to each other during the rotation, thereby achieving the washing of the washing machine, and at the same time, the effect of turning and scrubbing the clothes is better.

[0053] When the washing machine is in dehydration operation: the motor 1 drives the power main shaft 2 to rotate in a single direction. Since the main shaft sleeve 3 is connected to the inner barrel fixing plate 12 and the inner barrel 4 as a whole, the inner barrel 4 also starts to rotate under the action of the damping material layer and friction between the power main shaft 2, the transmission disc 5 and the transmission matching part 6. As the rotation speed of the power main shaft 2 gradually increases, the damping material layer between the transmission disc 5 and the transmission matching part 6 gradually increases the rotational driving torque of the main shaft sleeve 3 and the inner barrel 4, and is greater than or equal to the rotational resistance torque of the main shaft sleeve 3 and the inner barrel 4. In this way, the main shaft sleeve 3 and the inner barrel 4 are synchronized and rotated rapidly with the pulsator 23 to achieve the purpose of high-speed dehydration.

[0054] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A clutchless transmission structure of a washing machine, comprising a motor (1), a power main shaft (2) drivingly connected to the motor (1), and a pulsator (23) drivingly connected to the power main shaft (2), characterized in that: A main shaft sleeve (3) is arranged on the periphery of the power main shaft (2), and an inner barrel (4) is drivingly connected to the main shaft sleeve (3); a transmission disc (5) is arranged between the power main shaft (2) and the main shaft sleeve (3), and a damping material layer having a damping effect is arranged between the transmission disc (5) and the main shaft sleeve (3); The main shaft sleeve (3) is provided with a transmission matching portion (6) corresponding to the transmission disc (5); The damping material layer is damping grease applied between the transmission disc (5) and the transmission mating part (6), and the transmission disc (5) and the transmission mating part (6) are mated in a damping-type transmission through the damping grease; Alternatively, the damping material layer is a damping sheet arranged between the transmission disc (5) and the transmission matching portion (6), and the transmission disc (5) and the transmission matching portion (6) are matched in a damping manner via the damping sheet.

2. The clutchless transmission structure of the washing machine according to claim 1, characterized in that: The transmission disc (5) is fixedly arranged on the upper part of the power main shaft (2).

3. The clutchless transmission structure of a washing machine according to claim 1, characterized in that: The transmission matching portion (6) is arranged on the top of the main shaft sleeve (3); a bearing (8) is sleeved on the power main shaft (2) and is sleeved in the main shaft sleeve (3) through the bearing (8), or the power main shaft (2) is directly sleeved in the main shaft sleeve (3), and the power main shaft (2) is supported on the transmission matching portion (6) through a transmission disc (5).

4. The clutchless transmission structure of a washing machine according to claim 1, characterized in that: A recess (9) is provided on the transmission disc (5) and / or the transmission matching portion (6), and damping grease is stored in the recess (9).

5. The clutchless transmission structure of a washing machine according to claim 4, characterized in that: The concave portion (9) is in the shape of a dot, a straight line, a spiral, a wave, or a combination thereof.

6. The clutchless transmission structure of a washing machine according to claim 5, characterized in that: One or more recesses (9) are provided.

7. The clutchless transmission structure of a washing machine according to claim 1, characterized in that: The power output end of the motor (1) is directly connected to the power main shaft (2); Alternatively, the motor (1) uses the power main shaft (2) as the power output end; Alternatively, the power output end of the motor (1) is drivingly connected to a coupling (10), and is drivingly connected to the power main shaft (2) via the coupling (10).

8. The clutchless transmission structure of a washing machine according to any one of claims 1 to 7, characterized in that: The invention also comprises an outer barrel (11); the inner barrel (4) is located inside the outer barrel (11), and an inner barrel fixing plate (12) is fixedly provided at the bottom of the inner barrel (4), and a fixing hole (13) is provided on the inner barrel fixing plate (12); a side wing (14) extends from the periphery of the main shaft sleeve (3), and a fixing matching hole (15) is provided on the side wing (14); the side wing (14) rests on the bottom of the inner barrel fixing plate (12), and the fixing hole (13) and the fixing matching hole (15) are fixedly matched with each other by fasteners.

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