Drive arm of a laundry treating apparatus and laundry treating apparatus

Abstract

The utility model provides a kind of transmission arm of clothes processing equipment and clothes processing equipment, the transmission arm of a kind of clothes processing equipment is integrally die casting with transmission shaft, the end of transmission arm away from transmission shaft is located in the rear end of inner tube of clothes processing equipment, transmission arm is circular, or transmission arm includes arm and shaft seat part;Arm and shaft seat part arc connection;Through the transmission arm of a kind of clothes processing equipment and clothes processing equipment of the utility model, the setting of transmission arm structure can be optimized, the rigidity between transmission arm and transmission shaft is improved, the stable and reliable operation of equipment is guaranteed, the influence of stress concentration on the connecting place of transmission arm and transmission shaft can also be reduced, the generation of noise and vibration is avoided.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and more specifically, to a transmission arm and clothing processing equipment for clothing processing. Background Technology

[0002] With the rapid development of technology, people's demands for clothing processing equipment are also increasing. Common clothing processing equipment includes drum washing machines. The connection between the drive arm and the drive shaft inside the drum washing machine is prone to becoming a weak point of stress concentration under the enormous torque and unbalanced impact brought about by high-speed spin drying over a long period of time. This not only leads to increased noise and vibration, but may also cause fracture due to metal fatigue, seriously affecting the lifespan and reliability of the entire machine. Therefore, it is of great significance to study how to optimize the structure of the drive arm and improve the connection stability between the drive arm and the drive shaft of the motor. Utility Model Content

[0003] In view of this, the present invention aims to propose a transmission arm and a garment processing device to solve the problem that the existing transmission arm and the transmission shaft between the transmission arm and the motor are set up separately, which easily causes stress concentration at the connection between the transmission arm and the transmission shaft, resulting in increased noise and vibration, and thus easily affecting the overall operational stability and reliability of the equipment. The present invention optimizes the transmission arm structure, improves the rigidity between the transmission arm and the transmission shaft, ensures the stable and reliable operation of the equipment, and reduces the impact of stress concentration on the connection between the transmission arm and the transmission shaft, thus avoiding the generation of noise and vibration.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] This utility model relates to a transmission arm of a garment processing device and the garment processing device itself. The transmission arm of the garment processing device is integrally die-cast with the transmission shaft, and the end of the transmission arm away from the transmission shaft is located at the rear end of the inner cylinder of the garment processing device.

[0006] Furthermore, the transmission arm includes a support arm and a bearing seat; the support arm and the bearing seat are connected by an arc; three support arms are provided, and the three support arms are evenly distributed along the circumference on the outer side wall of the bearing seat; the center of the bearing seat is connected to the transmission shaft by an integral die-casting process to achieve an arc connection.

[0007] Furthermore, the transmission arm is circular.

[0008] Furthermore, the end of the drive shaft away from the drive arm passes through the bearing housing of the outer cylinder in a rotatable manner and is connected to an external motor in the garment processing equipment.

[0009] Furthermore, the dimensions of the outriggers are the same from the inside out.

[0010] Furthermore, the support arm includes a first groove and a second groove; both the first groove and the second groove are located on the rear side of the end of the support arm away from the bearing seat; both the first groove and the second groove are used to prevent stress concentration.

[0011] Furthermore, the transmission arm includes a reinforcing groove, the bottom of which is an arc surface.

[0012] Furthermore, the transmission arm also includes a side groove, which is conformally arranged on the opposite side of any two arms.

[0013] Furthermore, the transmission arm also includes reinforcing ribs; the reinforcing ribs are set in the side groove.

[0014] A garment processing device includes a transmission arm, which is disposed within the device.

[0015] Compared with the prior art, the transmission arm and garment processing device of the present invention have the following advantages:

[0016] By installing the aforementioned transmission arm in the garment processing equipment, the structure of the transmission arm can be effectively optimized, the rigidity between the transmission arm and the transmission shaft can be improved, the stable and reliable operation of the equipment can be ensured, and the impact of stress concentration on the connection between the transmission arm and the transmission shaft can be reduced, thus avoiding the generation of noise and vibration. Attached Figure Description

[0017] The accompanying drawings, which constitute a part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments and descriptions of the utility model are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of the transmission arm;

[0019] Figure 2 This is a first-person view diagram of the transmission arm;

[0020] Figure 3 This is a schematic diagram of the transmission arm structure;

[0021] Figure 4 This is a schematic diagram of the structure when the transmission arm and inner cylinder are die-cast as a single unit.

[0022] Explanation of reference numerals in the attached drawings: 1. Drive arm; 11. Support arm; 111. Rib groove 1; 112. Rib groove 2; 12. Shaft seat; 13. Reinforcing groove; 14. Side groove; 15. Reinforcing rib; 2. Drive shaft; 21. Shaft base; 22. Shaft middle; 23. Shaft-machine connection part; 3. Connecting component. Detailed Implementation

[0023] The inventive concepts of this disclosure will be described below using terminology commonly used by those skilled in the art to convey the essence of their work to others skilled in the art. However, these inventive concepts may be embodied in many different forms and should not be construed as limited to the embodiments described herein.

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0025] In the description of this utility model, it should be understood that the terms "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] To address the problem in existing technologies where the transmission arm and its drive shaft to the motor are separate components, which easily leads to stress concentration at the connection point and increased noise and vibration, thus affecting the overall stability and reliability of the equipment, this embodiment proposes a transmission arm and garment processing device. The transmission arm 1 and drive shaft 2 of the garment processing device are integrally die-cast, with the end of the transmission arm 1 furthest from the drive shaft 2 located at the rear end of the inner drum of the garment processing device. The end of the drive shaft 2 furthest from the transmission arm 1 rotatably passes through a bearing seat in the outer drum and connects to an external motor within the garment processing device.

[0028] By configuring the transmission arm 1, the structure of the transmission arm 1 can be simplified, enabling the motor to drive the transmission shaft 2 to move the transmission arm 1, thereby driving the movement of the inner cylinder. It also improves the strength and rigidity of the transmission arm 1, effectively reducing vibration between the transmission arm 1 and the transmission shaft 2 during equipment operation, reducing noise, and enhancing the stability and reliability of the connection between the transmission arm 1 and the transmission shaft 2.

[0029] The transmission arm 1 is circular. The transmission arm 1 is integrally die-cast with the rear end cover of the inner cylinder. Alternatively, the transmission arm 1 includes a support arm 11 and a bearing seat 12; the support arm 11 and the bearing seat 12 are connected by an arc; three support arms 11 are provided, evenly distributed along the circumference on the outer side wall of the bearing seat 12; the center of the bearing seat 12 is smoothly connected to the transmission shaft 2 via an integral die-casting process. The support arms 11 have the same dimensions from the inside out. The bearing seat 12 is cylindrical. The diameter of the bearing seat 12 is much larger than the diameter of the front end face of the transmission shaft 2.

[0030] The three support arms 11 enhance the support strength of the transmission arm 1 for the inner cylinder and reduce its manufacturing cost while simplifying its structure. The bearing seat 12 provides a support surface for the transmission shaft 2 and can connect the inner cylinder and motor to the transmission shaft 2, thereby ensuring the stability and reliability of the overall structure of the garment processing equipment.

[0031] Specifically, the transmission arm 1 and the transmission shaft 2 are integrally die-cast. The transmission arm 1 includes a connector 3, which is located on the outside of the transmission arm 1 or on the side away from the transmission shaft 2. The transmission arm 1 is connected to the inner drum of the garment processing equipment through the connector 3. The end of the transmission shaft 2 away from the transmission arm 1 passes through the bearing housing and is connected to the motor. The transmission arm 1 and the transmission shaft 2 are connected by a smooth arc. The connector 3 is a grooved part or a spline. The grooved part adopts an I-shaped groove.

[0032] By setting the transmission arm 1 in the garment processing equipment, the structure of the transmission arm 1 can be effectively optimized, the rigidity between the transmission arm 1 and the transmission shaft 2 can be improved, the stable and reliable operation of the equipment can be ensured, and the impact of stress concentration on the connection between the transmission arm 1 and the transmission shaft 2 can be reduced, thus avoiding the generation of noise and vibration.

[0033] The support arm 11 includes a first groove 111 and a second groove 112; both the first groove 111 and the second groove 112 are located on the rear side of the end of the support arm 11 away from the shaft seat 12; both the first groove 111 and the second groove 112 are used to prevent stress concentration, thereby improving the stability of the support arm 11 on the garment handling equipment. At least one first groove 111 and one second groove 112 are provided. Preferably, two first grooves 111 and two second grooves 112 are provided. The two second grooves 112 are arranged opposite each other, and the two first grooves 111 are located between the two second grooves 112. There is a certain gap between the two first grooves 111. The two first grooves 111 are arranged parallel from the outside to the inside. There is a certain gap between the two first grooves 111 and the two second grooves 112. The first groove 111 is a rectangular groove. The second groove 112 is a strip groove. Furthermore, the bottom of the groove 112 facing the shaft seat 12 is wedge-shaped.

[0034] By combining the first groove 111 and the second groove 112, the stress concentration of the support arm 11 can be effectively prevented, and the rigidity of the support arm 11 can be improved, thus ensuring the overall structural stability of the support arm 11.

[0035] The transmission arm 1 includes a reinforcing groove 13, the bottom of which is arc-shaped. One end of the reinforcing groove 13 is conformally positioned on the side of the corresponding support arm 11 facing the inner cylinder. The other end of the reinforcing groove 13 is positioned at the connection between the support arm 11 and the shaft seat 12. The bottom of the reinforcing groove 13 is arc-shaped. The depth of the reinforcing groove 13 remains consistent from the outside to the inside. Three reinforcing grooves 13 are provided, and the three reinforcing grooves 13 correspond to the positions of the three support arms 11. A connecting member 3 is provided on the front or outer side of the transmission arm 1. When the connecting member 3 is provided on the front side of the transmission arm 1, the connecting member 3 is located at the end of the reinforcing groove 13 away from the shaft seat 12, and there is a certain gap between the connecting member 3 and the reinforcing groove 13. In this embodiment, the outer side refers to the side where the three support arms 11 of the transmission arm 1 are respectively in contact with the inner wall of the inner cylinder.

[0036] By reinforcing the groove 13, the overall rigidity of the transmission arm 1 can be greatly enhanced. Furthermore, the arc surface design can improve the structural stability of the support arm 11 in the transmission arm 1, and also achieve the effect of vibration reduction and noise reduction.

[0037] The transmission arm 1 also includes side grooves 14, which are irregularly arranged on one side opposite to any two arms 11. There are n side grooves 14, where n is a positive integer; preferably, n=3, meaning three side grooves are provided. The three side grooves 14 are located on one side opposite to any two arms 11. The width of the side grooves 14 gradually increases from the outside to the inside. In this embodiment, the width of the side grooves 14 refers to the dimension in the front-to-back direction.

[0038] The side grooves 14 effectively reduce vibration and noise, while maintaining the structural strength of the transmission arm 1 and reducing its weight. Furthermore, by reducing material usage, the rotational inertia of the transmission arm 1 is lowered, making motor start-up and stopping easier and reducing energy consumption. Additionally, they improve the bending stiffness of the transmission arm 1, making it less prone to deformation under heavy loads. Moreover, the smooth distribution of the side grooves 14 on the transmission arm 1 effectively disperses stress, preventing fatigue fracture and thus extending the fatigue life of the transmission arm 1.

[0039] The transmission arm 1 also includes reinforcing ribs 15; the reinforcing ribs 15 are disposed in the side grooves 14. The reinforcing ribs 15 are flat. There are m reinforcing ribs 15, where m is a positive integer. Each m reinforcing ribs 15 are distributed in the corresponding side grooves 14. The width of the reinforcing rib 15 is consistent with the width of the groove at its position within the side groove 14. The reinforcing ribs 15 are smoothly connected to the groove wall of the side groove 14 by a circular arc.

[0040] The distribution of reinforcing ribs 15 within the side groove 14 enables the reinforcement and fixation of the side groove 14. This also helps to improve the rigidity and structural stability of the transmission arm 1 while reducing its weight.

[0041] The drive shaft 2 includes a shaft base 21, a shaft center 22, and a shaft-machine connection 23. The shaft base 21, shaft center 22, and shaft-machine connection 23 are integrally die-cast to form the drive shaft 2. The end of the shaft base 21 furthest from the shaft center 22 is smoothly and arc-connected to the shaft seat 12. The end of the shaft-machine connection 23 furthest from the shaft center 22 passes through a bearing housing and is then fastened to the motor with screws. The outer diameter of the shaft base 21 > the outer diameter of the shaft center 22 > the outer diameter of the shaft-machine connection 23. The shaft-machine connection 23 is a hollow cylinder, and its inner wall fits against the outer wall of the motor output shaft.

[0042] The integrated die-cast shaft base 21, shaft center 22, and shaft-motor connection 23 enhance the rigidity of the drive shaft 2 and ensure the stability and reliability of the connection between the drive shaft 2 and the motor. Furthermore, the integrated die-casting of the drive shaft 2 and drive arm 1 improves the overall assembly and disassembly efficiency of the equipment, saving manual assembly and disassembly time.

[0043] A garment processing device includes a transmission arm 1, which is disposed within the device. The garment processing device also includes a housing. An inner drum is disposed within the housing. The transmission arm 1 is located on the rear side of the inner drum, or the transmission arm 1 is embedded in the rear side of the inner drum via a connector 3. A transmission shaft 2 is connected to a motor via a bearing seat. There is a certain gap between the rear side of the motor and the rear panel of the housing.

[0044] By installing the integrated die-cast transmission arm 1 in the garment processing equipment, the operational stability of the equipment can be effectively improved, the disassembly and assembly efficiency can be increased, the vibration during operation can be reduced, and the noise reduction effect can be achieved, which is conducive to improving user satisfaction.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A transmission arm for a garment processing device, characterized in that, The transmission arm (1) and the transmission shaft (2) are integrally die-cast. The end of the transmission arm (1) away from the transmission shaft (2) is located at the rear end of the inner cylinder of the garment processing equipment. The transmission arm (1) includes a support arm (11). The support arm (11) has the same size from the inside to the outside.

2. The transmission arm of the garment processing device according to claim 1, characterized in that, The transmission arm (1) includes a bearing seat (12); the support arm (11) is connected to the bearing seat (12) by an arc; three support arms (11) are provided, and the three support arms (11) are evenly distributed along the circumference on the outer side wall of the bearing seat (12); the center position of the bearing seat (12) is connected to the transmission shaft (2) by an integral die casting process.

3. The transmission arm of the garment processing device according to claim 1, characterized in that, The transmission arm (1) is circular.

4. The transmission arm of the garment processing device according to claim 1, characterized in that, The end of the drive shaft (2) away from the drive arm (1) passes through the bearing seat of the outer cylinder in a rotatable manner and is connected to the external motor in the garment processing equipment.

5. The transmission arm of the garment processing device according to claim 2, characterized in that, The support arm (11) includes a first groove (111) and a second groove (112); both the first groove (111) and the second groove (112) are located on the rear side of the end of the support arm (11) away from the bearing seat (12); both the first groove (111) and the second groove (112) are used to prevent stress concentration.

6. The transmission arm of the garment processing device according to claim 2, characterized in that, The transmission arm (1) includes a reinforcing groove (13), the bottom of which is an arc surface.

7. The transmission arm of the garment processing device according to claim 2, characterized in that, The transmission arm (1) also includes a side groove (14), which is disposed on the opposite side of any two arms (11).

8. The transmission arm of the garment processing device according to claim 7, characterized in that, The transmission arm (1) also includes a reinforcing rib (15); the reinforcing rib (15) is disposed in the side groove (14).

9. A garment processing device, characterized in that, The device includes a transmission arm of a garment processing apparatus according to any one of claims 1-8, wherein the transmission arm (1) is disposed in the apparatus.

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