Main shaft connecting structure

Abstract

The utility model discloses a main shaft connecting structure which comprises a connecting part and a main shaft, a main body of the connecting part is made of BMC materials, the connecting part is of a disc structure, the main shaft is embedded in the center of the connecting part, and first tooth parts are evenly distributed at the end, close to the connecting part, of the main shaft in the circumferential direction. The connecting part is formed by casting a BMC material on the periphery of the first tooth part and forms a second tooth part meshed with the first tooth part, a groove sunken in the radial direction is formed in the first tooth part so that a limiting ring protruding towards the radial inner side can be formed on the second tooth part, and a third tooth part is arranged at the end, away from the connecting part, of the main shaft in the circumferential direction. The anti-rust washing machine drum can meet the mechanical strength needed by rotation of the washing machine drum, has the anti-rust performance, and is light in weight, low in manufacturing cost and good in energy-saving effect.

Description

Technical Field

[0001] This utility model belongs to the field of washing machine equipment, and specifically relates to a main shaft connection structure. Background Technology

[0002] The connection structure between the main shaft and the drum of household and commercial appliances such as washing machines is mainly made of cast aluminum. Cast aluminum meets the mechanical strength and rust resistance requirements of the main shaft connection structure. However, cast aluminum is expensive, which increases the cost. Moreover, cast aluminum is heavy, which leads to high energy consumption of the washing machine during operation and fails to meet energy-saving requirements. Therefore, in order to avoid the shortcomings of the existing technology, it is necessary to improve the existing technology. Utility Model Content

[0003] The purpose of this invention is to provide a main shaft connection structure that can meet the mechanical strength required for the rotation of the washing machine drum, has rust prevention properties, is lightweight, has low manufacturing cost, and has good energy-saving effect.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A spindle connection structure includes a connecting component and a spindle. The main body of the connecting component is made of BMC material and has a disc structure. The spindle is embedded in the center of the connecting component. The end of the spindle near the connecting component has a first tooth evenly distributed circumferentially. The connecting component is cast from BMC material on the outer periphery of the first tooth to form a second tooth that meshes with the first tooth. The first tooth has a radially recessed groove, and the second tooth has a limiting ring that protrudes radially inward. The end of the spindle away from the connecting component has a third tooth arranged circumferentially.

[0006] As a preferred embodiment of the above-mentioned spindle connection structure, a protruding post is formed along the outer periphery of the spindle at the connection point between the connecting component and the spindle.

[0007] As a preferred embodiment of the above-mentioned spindle connection structure, the protruding post is provided with a plurality of reinforcing ribs extending radially outward, and the reinforcing ribs are spaced apart along the circumference of the protruding post.

[0008] As a preferred embodiment of the above-mentioned spindle connection structure, the connecting component is provided with a circular concave groove, and the protruding post and the reinforcing rib are disposed in the circular concave groove.

[0009] As a preferred embodiment of the above-mentioned spindle connection structure, the connecting component is provided with a plurality of fixing holes spaced apart along the circumference.

[0010] As a preferred embodiment of the above-mentioned spindle connection structure, the connecting component is inlaid with a plurality of fixing rings, the fixing holes are disposed on the fixing rings, adjacent fixing rings are connected to each other to form positioning rings, the positioning rings are inlaid on the connecting component and integrally cast with the connecting component.

[0011] As a preferred embodiment of the above-mentioned spindle connection structure, a positioning notch is provided on the outer side of the connection component.

[0012] As a preferred embodiment of the above-mentioned spindle connection structure, the spindle is made of steel.

[0013] The advantages of implementing the spindle connection structure provided by this utility model compared with the prior art are as follows:

[0014] The first and second teeth of this invention mesh, enabling the connecting component to rotate when the main shaft rotates. The third tooth on the main shaft connects to the washing machine motor, and the connecting component connects to the washing machine drum. The main shaft transmits rotational kinetic energy to drive the connecting component, thereby driving the washing machine drum to rotate. Since the main shaft is connected to the washing machine's drive unit, it requires greater mechanical strength. The main shaft is integrally cast and embedded in the connecting component. This allows the main shaft to be made of a different material than the connecting component to meet the mechanical strength requirements, while the connecting component can be made of BMC material to achieve lightweighting and cost reduction. The main shaft is connected by embedding it in the connecting component. The structure meets the mechanical strength requirements of the washing machine drum during rotation while also achieving lightweighting and cost reduction. The main body of the connecting components is made of BMC material, which is lighter than cast aluminum, thus making the entire main shaft connection structure lighter. This lighter main shaft connection structure reduces the burden on the motor, improves the washing machine's working efficiency, and enhances energy saving. The lightweight main shaft connection structure also improves the washing machine's dynamic response speed, making the washing process smoother and more efficient. At the same time, it reduces vibration and noise during operation, providing a quieter washing experience. The cost of BMC material is lower than that of cast aluminum, which helps reduce manufacturing costs during mass production. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0016] Figure 1 This is an exploded view of the spindle connection structure of this utility model;

[0017] Figure 2 yes Figure 1 A partially enlarged schematic diagram of the second tooth section;

[0018] Figure 3 This is a schematic diagram of the spindle connection structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the main shaft connection structure of this utility model and the washing machine drum.

[0020] Marked in the image:

[0021] 100. Main shaft; 110. First toothed section; 120. Third toothed section; 200. Connecting component; 210. Second toothed section; 211. Limiting ring; 220. Fixing ring; 230. Fixing hole; 240. Positioning ring; 250. Reinforcing rib; 260. Positioning notch; 270. Protruding post; 280. Circular concave groove; 300. Washing machine drum. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional 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.

[0024] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] Please refer to the following: Figures 1 to 4 The spindle connection structure provided in the embodiments of this utility model will now be described.

[0027] like Figures 1 to 4As shown, the main shaft 100 connection structure of this utility model includes a connecting component 200 and a main shaft 100. The main body of the connecting component 200 is made of BMC material. The connecting component 200 has a disc structure. The main shaft 100 is embedded in the center of the connecting component 200. The end of the main shaft 100 near the connecting component 200 has a first tooth 110 evenly distributed circumferentially. The connecting component 200 is cast from BMC material on the outer periphery of the first tooth 110 and forms a second tooth 210 that meshes with the first tooth 110. The first tooth 110 has a radially recessed groove so that the second tooth 210 forms a limiting ring 211 that protrudes radially inward. The end of the main shaft 100 away from the connecting component 200 has a third tooth 120 circumferentially arranged.

[0028] BMC, or Bulk Molding Compound, is a thermosetting plastic composite material made of resin, filler, plasticizer, stabilizer, and other additives. BMC has rust-resistant properties, is lighter than cast aluminum, and is less expensive than cast aluminum. As BMC is an existing material, it will not be discussed further here.

[0029] The spindle 100 is embedded in the center of the connecting component 200 and is integrally cast with the connecting component 200, which makes the connection structure of the spindle 100 stronger. In the case of integral casting, the spindle 100 and the connecting component 200 can be made of different materials. The connecting component 200 is made of BMC material, which makes it lighter and lower in manufacturing cost. The spindle 100 can be made of materials such as steel to achieve the required mechanical strength.

[0030] The second tooth 210 is provided with an inwardly protruding limiting ring 211. The inwardly protruding limiting ring 211 on the second tooth 210 can limit the spindle 100. The inwardly protruding limiting ring 211 locks the spindle 100 and prevents the spindle 100 from falling off the connecting component 200. Since the spindle 100 and the connecting component 200 are integrally cast, the inwardly protruding limiting ring 211 can be machined during casting to limit the spindle 100. If it is not integrally cast, the inwardly protruding limiting ring 211 will lock the spindle 100, making it impossible for the spindle 100 to be installed into the connecting component 200.

[0031] For example, at the connection point between the connecting component 200 and the spindle 100, a protrusion 270 is formed along the outer periphery of the spindle 100. The protrusion 270 formed along the outer periphery of the spindle 100 serves to limit and reinforce the spindle 100, preventing the spindle 100 from shifting.

[0032] For example, the protruding post 270 is provided with a plurality of reinforcing ribs 250 extending radially outward. The reinforcing ribs 250 are spaced apart circumferentially along the protruding post 270. The main shaft 100 transmits rotational kinetic energy to drive the connecting component 200 to rotate, thereby driving the washing machine drum 300 to rotate. The reinforcing ribs 250 can strengthen the strength of the connecting component 200 and prevent the connecting component 200 from being twisted and deformed when rotating.

[0033] For example, the connecting component 200 has a circular concave groove 280, the protruding post 270 and the reinforcing rib 250 are disposed in the circular concave groove 280, the circular concave groove 280 is formed at the protruding post 270 and the reinforcing rib 250 so that the surface of the protruding post 270 and the reinforcing rib 250 is flush with the outer surface of the connecting component 200, which facilitates subsequent assembly with other components of the washing machine.

[0034] For example, the connecting component 200 is provided with a plurality of fixing holes 230 at intervals along the circumference. The fixing holes 230 are used to allow screws to pass through the fixing holes 230 to fix the connecting component 200 to the washing machine drum 300. The plurality of fixing holes 230 at intervals along the circumference makes the connecting component 200 more evenly stressed when rotating, thus improving stability.

[0035] For example, the connecting component 200 is inlaid with a plurality of fixing rings 220, and fixing holes 230 are disposed on the fixing rings 220. Adjacent fixing rings 220 are connected to each other to form positioning rings 240. The positioning rings 240 are inlaid on the connecting component 200 and integrally cast with the connecting component 200. When the washing machine drum 300 rotates, the fixing holes 230 will be subjected to greater pressure. By setting the fixing holes 230 on the fixing rings 220, the mechanical strength at the fixing holes 230 is increased, meeting the mechanical strength requirements when the washing machine drum 300 rotates. Adjacent fixing rings 220 are connected to form positioning rings 240. Positioning rings 240 play a positioning role when fixing rings 220 and connecting parts 200 are integrally cast. During casting, the position of fixing rings 220 is fixed to prevent displacement, so that fixing holes 230 can be aligned with screw holes on washing machine drum 300 for easy screw fixing. Moreover, positioning rings 240 reinforce fixing rings 220. When washing machine drum 300 rotates, it will exert pressure on fixing rings 220 in the direction of rotation. Positioning rings 240 connect fixing rings 220 to reinforce them, making the operation of connecting parts 200 more stable.

[0036] For example, the connecting component 200 has a positioning notch 260 on its outer side, which corresponds to the positioning component on the washing machine drum 300 and plays a positioning role during assembly, thereby improving the production efficiency during assembly.

[0037] For example, the main shaft 100 is made of steel, which has high strength and durability, and can withstand the repeated loads and torques generated during the operation of the washing machine, thus meeting the requirements of mechanical strength.

[0038] In other embodiments, the spindle 100 and the connecting component 200 are both made of the same BMC material. The spindle 100 and the connecting component 200 are integrally formed. Using the same BMC material, they can be integrally formed in a mold. Since the materials are the same, there is no strength problem at the connection between two different materials. The overall stress distribution is more uniform. At the same time, compared with the spindle 100 made of steel, it has a higher cost advantage and can be used in models with low mechanical strength requirements.

[0039] The advantages of implementing the spindle 100 connection structure provided by this utility model compared with the prior art are as follows:

[0040] The first tooth 110 and the second tooth 210 of this invention mesh, enabling the main shaft 100 to rotate and drive the connecting component 200 to rotate. The third tooth 120 on the main shaft 100 is connected to the washing machine motor, and the connecting component 200 is connected to the washing machine drum 300. The main shaft 100 can transmit rotational kinetic energy to drive the connecting component 200 to rotate, thereby driving the washing machine drum 300 to rotate. Since the main shaft 100 is connected to the washing machine's drive unit, it requires greater mechanical strength. The main shaft 100 is integrally cast and embedded in the connecting component 200. This allows the main shaft 100 to use a different material than the connecting component 200 to meet the mechanical strength requirements, while the connecting component 200 can use BMC material to achieve lightweighting and cost reduction. The main shaft 100 is embedded in the connecting component 200, enabling the main shaft 100 connection structure to meet the mechanical strength requirements of the washing machine drum 300 during rotation, while also achieving lightweighting and cost reduction. The main body of the connecting component 200 is made of BMC material, which is lighter than cast aluminum, thus making the entire main shaft 100 connection structure lighter. This lightweighting reduces the burden on the motor, improves the washing machine's working efficiency, and enhances energy saving. The lightweighting of the main shaft 100 connection structure also improves the washing machine's dynamic response speed, making the washing process smoother and more efficient. At the same time, it reduces vibration and noise during operation, providing a quieter washing experience. The cost of BMC material is lower than that of cast aluminum, which helps reduce manufacturing costs during mass production.

[0041] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A spindle connection structure, characterized in that, The device includes a connecting component and a main shaft. The main body of the connecting component is made of BMC material and has a disc structure. The main shaft is embedded in the center of the connecting component. The end of the main shaft near the connecting component has a first tooth evenly distributed circumferentially. The connecting component is cast from BMC material on the outer periphery of the first tooth and forms a second tooth that meshes with the first tooth. The first tooth has a radially recessed groove, and the second tooth has a limiting ring that protrudes radially inward. The end of the main shaft away from the connecting component has a third tooth arranged circumferentially.

2. The spindle connection structure according to claim 1, characterized in that, The connecting component has a protruding post formed along the outer periphery of the main shaft at the connection point with the main shaft.

3. The spindle connection structure according to claim 2, characterized in that, The protruding post is provided with a number of reinforcing ribs extending radially outward, and the reinforcing ribs are spaced apart along the circumference of the protruding post.

4. The spindle connection structure according to claim 3, characterized in that, The connecting component has a circular concave groove, and the protruding post and the reinforcing rib are disposed in the circular concave groove.

5. The spindle connection structure according to any one of claims 1 to 4, characterized in that, The connecting component has several fixing holes spaced apart along the circumference.

6. The spindle connection structure according to claim 5, characterized in that, The connecting component is inlaid with a plurality of fixing rings, and fixing holes are provided on the fixing rings. Adjacent fixing rings are connected to each other to form positioning rings, and the positioning rings are inlaid on the connecting component.

7. The spindle connection structure according to any one of claims 1 to 4, characterized in that, The connecting component has a positioning notch on its outer side.

8. The spindle connection structure according to any one of claims 1 to 4, characterized in that, The spindle is made of steel.

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