Belt wheel assembly and electrical equipment

Abstract

The invention provides a belt wheel assembly and electrical equipment, and belongs to the technical field of transmission structures. The belt wheel assembly comprises a wheel body, a shaft connecting piece and a first limiting structure, and a through hole is formed in the wheel body; the shaft connecting piece is arranged in the through hole; the first limiting structure is configured to limit the shaft connecting piece in the axial direction of the through hole and fix the shaft connecting piece in the wheel body, and the first limiting structure and the wheel body are integrally arranged. The wheel body and the first limiting structure are integrally formed, on one hand, the manufacturing efficiency of the wheel body is remarkably improved, and on the other hand, the assembling steps between the wheel body and the first limiting structure are reduced. Moreover, the wheel body and the first limiting structure which are integrally arranged have better structural strength, and the shaft connecting piece at the preset position can be fixed after the wheel body and the first limiting structure are integrally formed, so that the shaft connecting piece does not need to be assembled on the wheel body, the assembling steps between the wheel body and the shaft connecting piece are reduced, and the assembling efficiency is improved. And the manufacturing efficiency of the belt wheel assembly is obviously improved.

Description

Technical Field

[0001] The present invention relates to the technical field of transmission structures, and in particular to a pulley assembly and electrical equipment. Background Art

[0002] A drive belt is typically used to transmit power between the drive motor and the drum. To improve the belt's transmission efficiency, a pulley is provided on the drive motor, with the motor's drive shaft passing through the pulley and the drum for transmission. For example, a clothes dryer is an electrical appliance that circulates hot air to dry clothes. A clothes dryer typically includes a heater, a drum, and a drive motor that rotates the drum. The drive shaft of the drive motor passes through the pulley and the drum for transmission. In the prior art, pulleys are typically made of metal, and the manufacturing process requires high machining precision, which increases the difficulty and cost of manufacturing the pulleys. Furthermore, to ensure better rotation of the pulleys, bearings are also provided on the pulleys, which are secured to the pulleys by stoppers. However, securing the bearings to the pulleys with stoppers increases the number of parts on the pulleys and the number of assembly steps, thereby reducing manufacturing efficiency. Therefore, improving the manufacturing efficiency of pulleys and reducing the number of assembly steps required for the pulleys and bearings have become urgent technical challenges. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a pulley assembly and an electrical device for improving the manufacturing efficiency of the pulley and the assembly efficiency of the pulley and the bearing.

[0004] The above-mentioned object of the present invention can be achieved by adopting the following technical solutions. The present invention provides a pulley assembly, comprising:

[0005] a wheel body, wherein the wheel body is provided with a through hole;

[0006] a shaft connecting member, the shaft connecting member being arranged in the through hole;

[0007] The first limiting structure is configured to limit the shaft connecting member along the axial direction of the through hole and fix the shaft connecting member in the wheel body. The first limiting structure and the wheel body are integrally arranged.

[0008] In a preferred embodiment of the present invention, the first limiting structure includes at least one limiting groove arranged on the inner wall of the through hole, at least part of the shaft connecting member is clamped in the limiting groove, and the groove walls on both sides of the limiting groove limit the shaft connecting member along the axial direction of the through hole.

[0009] In a preferred embodiment of the present invention, the first limiting structure includes at least one first limiting portion and at least one second limiting portion protruding in the through hole. The first limiting portion and the second limiting portion are oppositely arranged on both sides of the shaft connecting member, and the first limiting portion and the second limiting portion limit the shaft connecting member along the axial direction of the through hole.

[0010] In a preferred embodiment of the present invention, a plurality of the shaft connecting members are provided, and the plurality of shaft connecting members are sequentially lapped or arranged at intervals.

[0011] In a preferred embodiment of the present invention, a plurality of the shaft connecting members are provided, and the plurality of shaft connecting members are arranged at intervals, and a spacer is provided between adjacent shaft connecting members.

[0012] In a preferred embodiment of the present invention, the pulley assembly further includes a collar sleeved on the periphery of the shaft connecting member.

[0013] In a preferred embodiment of the present invention, the shaft connecting member is one of a bearing and a shaft sleeve.

[0014] In a preferred embodiment of the present invention, the wheel body is formed by a non-metallic material. Preferably, the wheel body is one of a thermosetting material and a thermoplastic material.

[0015] In a preferred embodiment of the present invention, the wheel body includes a first wheel segment and a second wheel segment that are joined. The through hole penetrates through the first wheel segment and the second wheel segment. A second limiting structure is provided on the outer wall of the second wheel segment, and the second limiting structure is configured to limit the transmission belt along the axial direction of the through hole.

[0016] In a preferred embodiment of the present invention, a transmission structure is provided on the second wheel segment. The transmission structure includes at least two transmission grooves annularly arranged on the second wheel segment, and the transmission grooves can be used to connect the transmission belt.

[0017] In a preferred embodiment of the present invention, the second limiting structure is integrally provided with the second wheel segment.

[0018] In a preferred embodiment of the present invention, the second limiting structure includes a third limiting portion and a fourth limiting portion radially protruding from the outer walls at both ends of the second wheel segment.

[0019] In a preferred embodiment of the present invention, the radial dimension of the first wheel segment is larger than the radial dimension of the second wheel segment, and the fourth limiting portion is joined to the first wheel segment.

[0020] In a preferred embodiment of the present invention, a strengthening structure is provided on the side of the first wheel segment away from the second wheel segment.

[0021] In a preferred embodiment of the present invention, a clearance groove is provided on a side of the first wheel segment away from the second wheel segment, the clearance groove is arranged around the through hole, and the reinforcing structure includes at least one spoke arranged in the clearance groove.

[0022] The present invention also provides an electrical appliance, including a motor and the aforementioned pulley assembly, and the pulley assembly is rotatably arranged on the motor.

[0023] In a preferred embodiment of the present invention, the motor includes a motor end cover, a connecting seat arranged on the motor end cover, and a sliding shaft arranged on the connecting seat. The pulley assembly is rotatably sleeved on the sliding shaft through a shaft connecting member; the electrical appliance further includes a third limiting structure arranged on the sliding shaft, and the third limiting structure is configured to axially limit the pulley assembly along the sliding shaft.

[0024] In a preferred embodiment of the present invention, the third limiting structure includes a limiting circlip sleeved on the sliding shaft. When the sliding shaft and the pulley assembly are in an inserted state, the limiting circlip and the connecting seat are oppositely arranged on both sides of the pulley assembly.

[0025] In a preferred embodiment of the present invention, the electrical appliance is a clothes dryer or a washing machine.

[0026] The technical solution of the present invention has the following remarkable beneficial effects:

[0027] When the pulley assembly of the present invention is in use, the shaft connecting member can be arranged in the through hole of the wheel body to form the pulley assembly. The wheel body is rotatably installed on the motor through the shaft connecting member, and the wheel body can be driven by a transmission belt between the transmission shaft of the motor. Moreover, the shaft connecting member can be clamped in the through hole of the wheel body by the first limiting structure on the wheel body, and the shaft connecting member is axially limited, avoiding the problem of crosstalk between the shaft connecting member and the wheel body. Further, since the first limiting structure is integrally arranged with the wheel body, there is no need to additionally assemble the first limiting structure to limit the shaft connecting member. This is because: before the wheel body and the first limiting structure are integrally formed, the shaft connecting member is preset at the target position, so that after the wheel body and the first limiting structure are integrally formed, the shaft connecting member is located in the through hole of the wheel body and is limited by the first limiting structure.

[0028] By integrally forming the wheel body with the first limiting structure, on the one hand, the manufacturing efficiency of the wheel body is significantly improved, and on the other hand, the assembly steps between the wheel body and the first limiting structure are reduced. Moreover, the integrally provided wheel body and the first limiting structure have better structural strength, can play a more stable limiting role on the shaft connecting member, and improve the product quality of the pulley assembly. And, after the wheel body and the first limiting structure are integrally formed, the shaft connecting member at the preset position can be fixed, so there is no need to assemble the shaft connecting member on the wheel body anymore, reducing the assembly steps between the wheel body and the shaft connecting member, and significantly improving the manufacturing efficiency of the pulley assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure of the present invention in any way. Additionally, the shapes and proportional dimensions of the components in the drawings are only schematic for facilitating the understanding of the present invention and do not specifically limit the shapes and proportional dimensions of the components of the present invention. Those skilled in the art can select various possible shapes and proportional dimensions according to specific circumstances to implement the present invention under the teaching of the present invention.

[0031] Figure 1 It is a schematic side sectional structure view of an embodiment of the pulley assembly of the present invention;

[0032] Figure 2 It is a schematic three-dimensional structure view of an embodiment of the pulley assembly of the present invention;

[0033] Figure 3 It is a schematic three-dimensional structure view of an embodiment of the spoke of the present invention;

[0034] Figure 4 It is a schematic installation structure view of an embodiment of the pulley assembly of the present invention.

[0035] Figure 5 It is a schematic cross-sectional view of the installation structure of an embodiment of the spacer of the present invention;

[0036] Figure 6 It is a schematic cross-sectional view of the installation structure of an embodiment of the collar of the present invention.

[0037] The reference numerals of the above drawings:

[0038] 100, wheel body; 110, through hole; 120, first wheel segment; 121, clearance groove; 130, second wheel segment;

[0039] 140, transmission structure; 141, transmission groove;

[0040] 200, shaft connecting piece;

[0041] 300, first limiting structure; 310, limiting groove;

[0042] 400, second limiting structure; 410, third limiting part; 420, fourth limiting part;

[0043] 500, strengthening structure; 510, wheel spoke;

[0044] 600, motor; 610, motor end cover; 611, connecting seat; 612, sliding shaft;

[0045] 700, third limiting structure; 710, limiting circlip;

[0046] 800, spacer;

[0047] 900, collar. Detailed implementation mode

[0048] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0049] Embodiment 1

[0050] Please refer to Figure 1 and Figure 2 As shown, in the embodiment of the present invention, a pulley assembly is provided, which at least includes a wheel body 100, a shaft connecting piece 200 and a first limiting structure 300. A through hole 110 is provided on the wheel body 100; the shaft connecting piece 200 is arranged in the through hole 110; the first limiting structure 300 is configured to axially limit the shaft connecting piece 200 along the through hole 110 and fix the shaft connecting piece 200 in the wheel body 100, and the first limiting structure 300 is integrally provided with the wheel body 100.

[0051] Overall, when the pulley assembly is in use, the shaft connecting piece 200 can be arranged in the through hole 110 of the wheel body 100 to form a pulley assembly. The wheel body 100 is rotatably installed on the motor 600 through the shaft connecting piece 200, and the wheel body 100 can be driven by a transmission belt between the transmission shaft of the motor 600.

[0052] Moreover, the first limiting structure 300 on the wheel body 100 can snap the shaft connector 200 into the through hole 110 of the wheel body 100 and play an axial limiting role on the shaft connector 200, avoiding the problem of relative movement between the shaft connector 200 and the wheel body 100.

[0053] Furthermore, since the first limiting structure 300 and the wheel body 100 are integrally provided, there is no need to additionally assemble the first limiting structure 300 to limit the shaft connector 200. The reason is as follows: before the wheel body 100 and the first limiting structure 300 are integrally formed, the shaft connector 200 is preset at the target position. Thus, after the wheel body 100 and the first limiting structure 300 are integrally formed, the shaft connector 200 is located in the through hole 110 of the wheel body 100 and is limited by the first limiting structure 300.

[0054] In the present invention, by integrally forming the wheel body 100 and the first limiting structure 300, on the one hand, the manufacturing efficiency of the wheel body 100 is significantly improved, and on the other hand, the assembly steps between the wheel body 100 and the first limiting structure 300 are reduced. Moreover, the integrally provided wheel body 100 and the first limiting structure 300 have better structural strength, can play a more stable limiting role on the shaft connector 200, and improve the product quality of the pulley assembly.

[0055] Moreover, after the wheel body 100 and the first limiting structure 300 are integrally formed, the shaft connector 200 at the preset position can be fixed, so there is no need to assemble the shaft connector 200 on the wheel body 100 anymore, reducing the assembly steps between the wheel body 100 and the shaft connector 200 and significantly improving the manufacturing efficiency of the pulley assembly.

[0056] In a feasible embodiment of the present invention, as Figure 1 shown in the embodiment, the first limiting structure 300 includes at least one limiting groove 310 provided on the inner wall of the through hole 110. At least part of the shaft connector 200 is snapped into the limiting groove 310, and the two side walls of the limiting groove 310 limit the shaft connector 200 axially along the through hole 110.

[0057] Specifically, the limiting groove 310 is annularly provided on the inner wall of the through hole 110, and the side edge of the shaft connector 200 can be snapped into the limiting groove 310. Thus, the two side walls of the limiting groove 310 can play an axial limiting role on the shaft connector 200, improving the connection stability between the shaft connector 200 and the wheel body 100.

[0058] Designers can adjust the specific cross-sectional shape and setting position of the limiting groove 310 according to actual needs, which is not specifically limited herein.

[0059] In another feasible embodiment of the present invention, the first limiting structure 300 includes at least one first limiting portion and at least one second limiting portion protruding in the through hole 110. The first limiting portion and the second limiting portion are oppositely arranged on both sides of the shaft connecting member 200, and the first limiting portion and the second limiting portion axially limit the shaft connecting member 200 along the through hole 110.

[0060] Specifically, the first limiting portion is annularly arranged on the inner wall of the through hole 110, and the second limiting portion is also annularly arranged on the inner wall of the through hole 110. Thus, the first limiting portion, the second limiting portion, and the through hole 110 between the first limiting portion and the second limiting portion can form a groove structure, and the side edge of the shaft connecting member 200 can be clamped between the first limiting portion and the second limiting portion, thereby improving the connection stability between the shaft connecting member 200 and the wheel body 100.

[0061] Designers can adjust the specific structure of the first limiting portion and the second limiting portion according to the usage requirements, and no specific limitation is made here.

[0062] In the embodiment of the present invention, as Figure 1 shown in the embodiment, a plurality of shaft connecting members 200 are provided, and the plurality of shaft connecting members 200 are arranged in a lap joint manner in sequence or the plurality of shaft connecting members 200 are arranged at intervals.

[0063] By providing a plurality of shaft connecting members 200 in the wheel body 100, the plurality of shaft connecting members 200 can cooperate with each other to improve the installation stability of the pulley assembly, so that the pulley assembly can be more stably arranged on the motor 600 for transmission.

[0064] In a feasible embodiment, the plurality of shaft connecting members 200 are arranged in a lap joint manner in sequence. By arranging the plurality of shaft connecting members 200 in a lap joint manner in sequence, the first limiting structure 300 can be used to limit the shaft connecting members 200 at both ends to simultaneously limit the plurality of shaft connecting members 200, without the need to provide an additional first limiting structure 300, which has better manufacturing efficiency.

[0065] In another feasible embodiment, the plurality of shaft connecting members 200 are arranged at intervals. Since the plurality of shaft connecting members 200 are arranged at intervals, in order to stably maintain each shaft connecting member 200 in the wheel body 100, correspondingly, a plurality of first limiting structures 300 can be provided corresponding to each shaft connecting member 200, and the axial limiting of the plurality of shaft connecting members 200 is realized through the plurality of first limiting structures 300.

[0066] Of course, in other feasible embodiments, designers can adjust the number and arrangement mode of the shaft connecting members 200 according to the usage requirements, and no specific limitation is made here.

[0067] When there are multiple shaft connectors 200 and the shaft connectors 200 are arranged at intervals, there may be a lack of necessary support between adjacent shaft connectors 200, resulting in displacement problems between the shaft connectors 200.

[0068] To avoid the above problems, in an embodiment of the present invention, as Figure 5 shown in the embodiment, there are multiple shaft connectors 200, and the multiple shaft connectors 200 are arranged at intervals, and a spacer 800 is provided between adjacent shaft connectors 200. Among them, the aforementioned "multiple" refers to two or more, and no specific limitation is made here.

[0069] By providing the spacer 800 between adjacent shaft connectors 200, the spacer 800 can axially support the adjacent shaft connectors 200, avoid displacement problems between adjacent shaft connectors 200, and thus improve the installation stability of the shaft connectors 200.

[0070] Specifically, the spacer 800 is annularly arranged and placed between adjacent shaft connectors 200. The annularly arranged spacer 800 can support the shaft connectors 200 on both sides and can avoid affecting the threading of the shaft, having a better use effect.

[0071] Of course, the designer can adjust the specific structure and size of the spacer 800 according to the use requirements, and no specific limitation is made here.

[0072] In an embodiment of the present invention, as Figure 6 shown in the embodiment, the pulley assembly further includes a collar 900, and the collar 900 is sleeved on the periphery of the shaft connector 200. The collar 900 can play a role in glue sealing and positioning for the shaft connector 200, which helps to improve the installation accuracy of the shaft connector 200.

[0073] Especially when there are multiple shaft connectors 200, the multiple shaft connectors 200 are axially arranged in the collar 900, so that the collar 900 can simultaneously play a role in glue sealing and positioning for the multiple shaft connectors 200, significantly improving the positioning effect and installation stability between the multiple shaft connectors 200. The designer can determine the specific structure of the shaft connector 200 according to the use requirements, and no specific limitation is made here. For example, the shaft connector 200 is one of a bearing and a bushing. Among them, the bearing can be an oil-impregnated bearing, a ball bearing, etc., and no specific type limitation is made here.

[0074] Of course, the designer can set the shaft connector 200 to other structures according to the use requirements, and no specific limitation is made here either.

[0075] In an embodiment of the present invention, the wheel body 100 is formed by a non-metallic material. Preferably, the wheel body 100 is formed by a non-metallic plastic material.

[0076] Since non-metallic plastic materials have better machinability than metal materials, are convenient for injection molding and easy to control machining accuracy, the manufacturing efficiency and machining accuracy of the wheel body 100 are significantly improved when the wheel body 100 is manufactured using non-metallic plastic materials.

[0077] In a feasible embodiment, the wheel body 100 is made of a thermosetting material, which has the advantages of good heat resistance and resistance to deformation under pressure.

[0078] Designers can adjust the specific composition of the thermosetting material according to the use requirements, and no specific restrictions are made here. For example, the thermosetting material can be a thermosetting resin.

[0079] In another feasible embodiment, the wheel body 100 is made of thermoplastic material. Thermoplastic material has good plasticity at a certain temperature and has good structural strength after cooling and solidification, so it is easy to be constructed into various shapes, which helps to improve the manufacturing efficiency of the wheel body 100.

[0080] Designers can adjust the specific composition of the thermoplastic material according to the needs of use, and no specific restrictions are made here. For example, the thermosetting material can be a thermoplastic resin.

[0081] Of course, in other feasible embodiments, designers can adjust the specific material of the wheel body 100 according to usage requirements, and no specific limitation is made here.

[0082] In an embodiment of the present invention, Figure 1 In the embodiment shown, the wheel body 100 includes a first wheel segment 120 and a second wheel segment 130 connected to each other, a through hole 110 passes through the first wheel segment 120 and the second wheel segment 130, and a second limiting structure 400 is provided on the outer wall of the second wheel segment 130. The second limiting structure 400 is configured as an axial limiting transmission belt along the through hole 110.

[0083] By arranging the second limiting structure 400 on the outer wall of the second wheel segment 130 , the second limiting structure 400 can prevent the transmission belt from being separated from the second wheel segment 130 , thereby improving the connection stability of the transmission belt.

[0084] Specifically, the first wheel segment 120 and the second wheel segment 130 are both constructed as cylindrical structures, and the inner cavities of the first wheel segment 120 and the second wheel segment 130 are connected to form the through hole 110 .

[0085] Further, such as Figure 2 and Figure 4In the illustrated embodiment, a transmission structure 140 is provided on the second segment 130. The transmission structure 140 includes at least two transmission grooves 141 annularly arranged on the second segment 130, and the transmission grooves 141 can be used to connect a transmission belt. Designers can adjust the specific shape and the number of the transmission grooves 141 according to the usage requirements, and no specific limitation is made here.

[0086] In an embodiment of the present invention, the second limiting structure 400 and the second segment 130 are integrally provided. By integrally providing the second limiting structure 400 and the second segment 130, the structural strength between the second limiting structure 400 and the second segment 130 is improved.

[0087] Moreover, when the wheel body 100 is formed by a non-metallic plastic material, the second limiting structure 400 can be formed simultaneously with the second segment 130, thereby improving the manufacturing efficiency of the second limiting structure 400.

[0088] In an embodiment of the present invention, the second limiting structure 400 includes a third limiting portion 410 and a fourth limiting portion 420 radially protruding from the outer walls at both ends of the second segment 130.

[0089] Specifically, the third limiting portion 410 and the fourth limiting portion 420 are oppositely arranged on both sides of the transmission structure 140. By protruding the third limiting portion 410 and the fourth limiting portion 420 from the outer wall of the second segment 130, the third limiting portion 410 and the fourth limiting portion 420 can be used to limit the transmission belt arranged in the transmission groove 141, preventing the transmission belt from detaching from the second segment 130.

[0090] Designers can adjust the specific structures of the third limiting portion 410 and the fourth limiting portion 420 according to the usage requirements. For example, the third limiting portion 410 and the fourth limiting portion 420 can be set as annular, and no specific limitation is made here.

[0091] In an embodiment of the present invention, as Figure 1 , Figure 2 and Figure 4 shown in the embodiment, the radial dimension of the first segment 120 is larger than that of the second segment 130, and the fourth limiting portion 420 is connected to the first segment 120.

[0092] By making the radial dimension of the first segment 120 larger than that of the second segment 130, during installation, the first segment 120 can be arranged closer to the motor 600, so that the first segment 120 with a larger radial dimension can better isolate the transmission belt and the motor 600.

[0093] Designers can adjust the radial dimensions of the first segment 120 and the second segment 130 according to the usage requirements, and no specific numerical limitation is made here.

[0094] In an embodiment of the present invention, a reinforcing structure 500 is provided on a side of the first wheel segment 120 away from the second wheel segment 130. By providing the reinforcing structure 500 on the first wheel segment 120, it is beneficial to improve the structural strength of the first wheel segment 120.

[0095] Specifically, as Figure 3 shown in the embodiment, a clearance groove 121 is provided on a side of the first wheel segment 120 away from the second wheel segment 130. The clearance groove 121 is arranged around the through hole 110, and the reinforcing structure 500 includes at least one spoke 510 arranged in the clearance groove 121.

[0096] By providing the clearance groove 121 on the first wheel segment 120, the weight of the first wheel segment 120 can be reduced through the clearance groove 121, thereby reducing the manufacturing raw materials required for the pulley and lowering the manufacturing cost. Moreover, by arranging the spoke 510 in the clearance groove 121, the spoke 510 helps to strengthen the first wheel segment 120, thus compensating for the structural strength of the first wheel segment 120.

[0097] Preferably, a plurality of spokes 510 are provided. The plurality of spokes 510 are arranged at intervals around the through hole 110 in the clearance groove 121. The structural strength of the first wheel segment 120 is increased synergistically by the plurality of spokes 510. Designers can adjust the number of spokes 510 and their arrangement according to the usage requirements, and no specific limitations are made here.

[0098] Embodiment Two

[0099] Please refer to Figure 4 shown. In an embodiment of the present invention, an electrical device is provided. The electrical device includes a motor 600 and the pulley assembly described in Embodiment One. The pulley assembly is rotatably arranged on the motor 600.

[0100] The specific structure, working principle and beneficial effects of the pulley assembly are the same as those described in Embodiment One, and will not be elaborated here again. By using the pulley assembly described in Embodiment One, the electrical device reduces the manufacturing cost and improves the manufacturing efficiency.

[0101] Moreover, the pulley in the pulley assembly and the shaft connecting member 200 are integrally formed, which has better structural stability, helps to reduce the noise during the operation of the pulley assembly, and thus improves the operation quality of the pulley assembly.

[0102] Designers can determine the specific type and model of the electrical device according to the usage requirements, and no specific limitations are made here. For example, the electrical device is a dryer or a washing machine.

[0103] In an embodiment of the present invention, the motor 600 includes a motor end cover 610, a connection seat 611 provided on the motor end cover 610, and a sliding shaft 612 provided on the connection seat 611. The pulley assembly is rotatably sleeved on the sliding shaft 612 through a shaft connector 200; the electrical equipment further includes a third limiting structure 700 provided on the sliding shaft 612, and the third limiting structure 700 is configured to axially limit the pulley assembly along the sliding shaft 612.

[0104] By arranging the pulley assembly on the motor end cover 610 and on the side of the transmission shaft of the motor 600, the pulley assembly can cooperate with the transmission shaft of the motor 600 to play a transmission role.

[0105] Moreover, a transmission wheel connected to the transmission belt can be provided on the transmission shaft of the motor 600, and the transmission belt is sleeved between the transmission wheel and the pulley assembly, so that the power of the motor 600 can be transmitted to the pulley assembly. Further, another transmission belt can be sleeved on the pulley assembly to output the power of the motor 600. Designers can adjust the specific usage mode of the pulley assembly according to actual needs, and no specific limitation is made here.

[0106] Specifically, the third limiting structure 700 includes a limiting snap spring 710 sleeved on the sliding shaft 612. When the sliding shaft 612 and the pulley assembly are in an inserted state, the limiting snap spring 710 is arranged on the other side of the pulley assembly relative to the connection seat 611, so that the limiting snap spring 710 can axially limit the pulley assembly.

[0107] Certainly, in other feasible embodiments, designers can adjust the specific structure of the third limiting structure 700 according to actual needs. For example, the third limiting structure 700 can be set as a bolt, a nut or a buckle, etc., and no specific limitation is made here.

[0108] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for various purposes. The term "consisting essentially of" describing a combination should include the identified elements, components, parts or steps and other elements, components, parts or steps that do not substantially affect the basic novel features of the combination. Using the terms "comprising" or "including" to describe the combinations of elements, components, parts or steps herein also contemplates embodiments consisting essentially of these elements, components, parts or steps. Here, by using the term "may", it is intended to indicate that any attribute described as "may" included is optional. Multiple elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step can be divided into separate multiple elements, components, parts or steps. The disclosure of "a" or "an" used to describe an element, component, part or step does not mean to exclude other elements, components, parts or steps.

[0109] Each embodiment in this specification is described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other. The above embodiments are only used to illustrate the technical concept and features of the present invention, and their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. However, the protection scope of the present invention cannot be limited thereby. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A pulley assembly, characterized in that, Comprising: A wheel body, on which a through hole is provided; A shaft connecting member, which is arranged in the through hole; A first limiting structure, which is configured to axially limit the shaft connecting member along the through hole and fix the shaft connecting member in the wheel body, and the first limiting structure is integrally provided with the wheel body.

2. The pulley assembly according to claim 1, wherein, The first limiting structure includes at least one limiting groove provided on the inner wall of the through hole, and at least a part of the shaft connecting member is clamped in the limiting groove, and the two side walls of the limiting groove axially limit the shaft connecting member along the through hole.

3. The pulley assembly according to claim 1, characterized in that, The first limiting structure includes at least one first limiting portion and at least one second limiting portion protruding in the through hole, the first limiting portion and the second limiting portion are oppositely arranged on both sides of the shaft connecting member, and the first limiting portion and the second limiting portion axially limit the shaft connecting member along the through hole.

4. The pulley assembly according to claim 1, wherein, A plurality of the shaft connecting members are provided, and the plurality of shaft connecting members are arranged in a lap or spaced arrangement in sequence.

5. The pulley assembly according to claim 1, wherein A plurality of the shaft connecting members are provided, and the plurality of shaft connecting members are arranged at intervals, and a spacer is provided between adjacent shaft connecting members.

6. The pulley assembly according to claim 1 or 4, characterized in that The pulley assembly further includes a collar, which is sleeved on the periphery of the shaft connecting member.

7. The pulley assembly according to claim 1 or 4, characterized in that, The shaft connecting member is one of a bearing and a bushing.

8. The pulley assembly according to claim 1, wherein, The wheel body is formed by a non-metallic material, and the wheel body is one of a thermosetting material and a thermoplastic material.

9. The pulley assembly according to claim 8, wherein, The wheel body includes a first wheel segment and a second wheel segment that are connected, the through hole penetrates through the first wheel segment and the second wheel segment, and a second limiting structure is provided on the outer wall of the second wheel segment, and the second limiting structure is configured to axially limit a transmission belt along the through hole.

10. The pulley assembly according to claim 9, characterized in that, A transmission structure is provided on the second wheel segment, and the transmission structure includes at least two transmission grooves provided annularly on the second wheel segment, and the transmission grooves can be used to connect a transmission belt.

11. The pulley assembly according to claim 9, wherein, The second limiting structure is integrally provided with the second wheel segment.

12. The pulley assembly according to claim 9, wherein, The second limiting structure includes a third limiting portion and a fourth limiting portion radially protruding from the outer walls of both ends of the second wheel segment.

13. The pulley assembly according to claim 12, characterized in that, The radial dimension of the first wheel segment is larger than the radial dimension of the second wheel segment, and the fourth limiting portion is connected to the first wheel segment.

14. The pulley assembly according to claim 9, wherein, A reinforcing structure is provided on the side of the first wheel segment away from the second wheel segment.

15. The pulley assembly according to claim 14, wherein, A clearance groove is provided on the side of the first wheel segment away from the second wheel segment, the clearance groove surrounds the through hole, and the reinforcing structure includes at least one wheel spoke provided in the clearance groove.

16. An electrical device, characterized in that, Including a motor and the pulley assembly according to any one of claims 1 to 15, and the pulley assembly is rotatably provided on the motor.

17. The electrical device according to claim 16, wherein The electrical equipment is one of a dryer and a washing machine.

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