Belt pulley for generator

Abstract

The belt pulley for the generator comprises a pulley body and a cover body, a first limiting edge is outwards arranged at the rear end of the pulley body in the circumferential direction, an annular limiting groove is formed in the front end of the pulley body, the cover body is inserted and fixed in the limiting groove, and a second limiting edge corresponding to the first limiting edge is outwards arranged at the outer end of the cover body in the circumferential direction. A belt groove is formed in the circumferential outer side of the wheel body and located between the first limiting edge and the second limiting edge. The belt pulley has the advantages that the belt pulley is composed of the pulley body and the cover body, when the belt is installed, the cover body can be detached, the belt can be conveniently connected into the belt groove in a sleeved mode, then the cover body is fixed to the pulley body, the belt pulley is easy, convenient and rapid to detach and install, and the reliability of the belt can be guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of pulleys, in particular to a pulley for a generator. Background Art

[0002] Pulleys are typically made of cast or forged metal and are used in automotive engine belt drives, powering water pumps, air conditioners, generators, and more. Traditional pulleys are typically one-piece structures with belt grooves and raised ridges on either side to limit the belt's position. However, this structure can be difficult to install, especially when installing the belt from one pulley to the other. It's time-consuming and labor-intensive, and can also cause damage to the belt or adjacent piping due to excessive force. Utility Model Content

[0003] In view of this, the present invention aims to overcome the above-mentioned deficiencies in the prior art and proposes a pulley for a generator.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0005] A pulley for a generator comprises a wheel body and a cover body, wherein a first limiting edge is provided circumferentially outwardly at the rear end of the wheel body, an annular limiting groove is provided at the front end of the wheel body, the cover body is inserted and fixed in the limiting groove, and a second limiting edge corresponding to the first limiting edge is provided circumferentially outwardly at the outer end of the cover body, and a belt groove is provided on the circumferential outer side of the wheel body between the first limiting edge and the second limiting edge.

[0006] Furthermore, the front end of the wheel body is located inside the limiting groove and is fixed with an annular fixing platform coaxially arranged with the limiting groove. The limiting groove is divided into an insertion groove portion and a fixed groove portion by the fixing platform. The inner end of the cover body is provided with a fixing ring corresponding to the insertion groove portion. The fixing ring is inserted into the insertion groove portion, and the fixing platform and the fixing ring are fixed together in the fixed groove portion by screws.

[0007] Furthermore, a first plane is provided on the inner side wall of the fixing platform, and a countersunk hole is opened on the first plane. A threaded hole is opened on the fixing ring of the cover body corresponding to the countersunk hole. The cover body is fixedly connected to the wheel body by the cooperation of screws, countersunk holes and threaded holes.

[0008] Furthermore, a plurality of second planes are provided on the inner side wall of the fixing platform, and grooves are provided on the outer side wall of the fixing platform corresponding to the second planes. An integrally formed snap-in block is provided on the inner side wall of the fixing ring of the cover body corresponding to the grooves, and the snap-in block is inserted into the corresponding groove.

[0009] Furthermore, a mounting hole is provided in the middle of the wheel body, and a mounting ring is provided outwardly at the rear end of the wheel body corresponding to the mounting hole. A positioning groove is provided on the inner wall of the mounting hole to pass through the mounting hole and the mounting ring, and a fixing hole is provided on the mounting ring corresponding to the positioning groove.

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] The generator pulley described in the utility model is configured to consist of a wheel body and a cover body. When installing the belt, the cover body can be removed to facilitate the belt to be sleeved into the belt groove, and then the cover body can be fixed on the wheel body. The pulley is simple and quick to disassemble and assemble the belt, and can ensure the reliability of the belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 This is a schematic diagram of the structure of a pulley for a generator according to an embodiment of the present utility model;

[0014] Figure 2 This is a schematic structural diagram of a generator pulley according to an embodiment of the present utility model from another perspective;

[0015] Figure 3 This is a schematic diagram of the wheel structure according to an embodiment of the present utility model;

[0016] Figure 4 This is a schematic diagram of the cover structure according to an embodiment of the present utility model.

[0017] Description of reference numerals:

[0018] 1. Wheel body; 11. First limiting edge; 12. Fixing platform; 13. Limiting groove; 131. Inserting groove; 132. Fixing groove; 14. First plane; 15. Countersunk hole; 16. Second plane; 17. Groove; 18. Mounting hole; 19. Positioning groove; 110. Mounting ring; 2. Cover body; 21. Second limiting edge; 22. Fixing ring; 23. Clamping block; 3. Belt groove. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0022] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0023] As shown in the figure, a pulley for a generator includes a wheel body 1 and a cover body 2. The rear end of the wheel body 1 is provided with a first limiting edge 11 circumferentially outward, and the front end of the wheel body 1 is provided with an annular limiting groove 13. The cover body 2 is inserted and fixed in the limiting groove 13. The outer end of the cover body 2 is provided with a second limiting edge 21 circumferentially outward corresponding to the first limiting edge 11. The outer circumferential side of the wheel body 1 is provided with a belt groove 3 between the first limiting edge 11 and the second limiting edge 21. In this embodiment, the pulley is provided as a two-part structure consisting of the wheel body 1 and the cover body 2. When installing the belt, the cover body 2 can be removed to facilitate the belt to be inserted into the belt groove 3, and then the cover body 2 can be fixed to the wheel body 1.

[0024] The front end of the wheel body 1 is fixedly connected to an annular fixing platform 12 coaxially arranged with the limiting groove 13, located within the limiting groove 13. The limiting groove 13 is divided into an insertion groove portion 131 and a fixing groove portion 132 by the fixing platform 12. The inner end of the cover body 2 is provided with a fixing ring 22 corresponding to the insertion groove portion 131. The fixing ring 22 is inserted into the insertion groove portion 131, and the fixing platform 12 and the fixing ring 22 are fixed together by screws in the fixing groove portion 132. In this embodiment, the provision of the fixing groove portion 132 not only reduces weight, but also facilitates the installation of screws.

[0025] A first flat surface 14 is formed on the inner sidewall of the fixing platform 12, and a countersunk hole 15 is formed in the first flat surface 14. A threaded hole is formed in the fixing ring 22 of the cover 2, corresponding to the countersunk hole 15. The cover 2 is secured to the wheel body 1 through the screws, the countersunk hole 15, and the threaded hole. In this embodiment, the provision of the first flat surface 14 effectively prevents damage to the fixing platform 12 structure during the creation of the countersunk hole 15, which could result in a defective product. It also provides sufficient depth for the creation of the countersunk hole 15.

[0026] The inner sidewall of the fixing platform 12 is further provided with a plurality of second flat surfaces 16. Grooves 17 are provided on the outer sidewall of the fixing platform 12 corresponding to the second flat surfaces 16. Integrally formed engaging blocks 23 are provided on the inner sidewall of the fixing ring 22 of the cover 2 corresponding to the grooves 17. The engaging blocks 23 are inserted into the corresponding grooves 17 to further position the cover 2. In this embodiment, the second flat surfaces 16 and the grooves 17 corresponding to the second flat surfaces 16 are provided to enhance the connection strength at the grooves 17, thereby increasing the service life of the pulley.

[0027] A mounting hole 18 is provided in the middle of the wheel body 1, and a mounting ring 110 is provided outwardly at the rear end of the wheel body 1 corresponding to the mounting hole 18. A positioning groove 19 is provided on the inner wall of the mounting hole 18, which passes through the mounting hole 18 and the mounting ring 110, and a fixing hole is provided on the mounting ring 110 corresponding to the positioning groove 19, which is used to fix the pulley on the output shaft of the generator.

[0028] The working process of this embodiment is as follows:

[0029] When it is necessary to install the belt into the belt groove 3, remove the screws, take out the cover body 2, put the belt on the wheel body 1, and then install the fixing ring 22 of the cover body 2 in the insertion groove 131. At the same time, the clamping block 23 is inserted into the corresponding groove 17 for positioning, so that the second limit edge 21 is pressed against the front end of the wheel body 1, and finally fixed with screws.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pulley for a generator, characterized in that: It includes a wheel body and a cover body, a first limiting edge is provided circumferentially outwardly at the rear end of the wheel body, an annular limiting groove is provided at the front end of the wheel body, the cover body is inserted and fixed in the limiting groove, and a second limiting edge corresponding to the first limiting edge is provided circumferentially outwardly at the outer end of the cover body, and a belt groove is provided on the outer circumferential side of the wheel body between the first limiting edge and the second limiting edge.

2. A pulley for a generator according to claim 1, characterized in that: The front end of the wheel body is located inside the limiting groove and is fixed with an annular fixing platform coaxially arranged with the limiting groove. The limiting groove is divided into an insertion groove part and a fixed groove part by the fixing platform. The inner end of the cover body is provided with a fixing ring corresponding to the insertion groove part. The fixing ring is inserted into the insertion groove part, and the fixing platform and the fixing ring are fixed together in the fixed groove part by screws.

3. A pulley for a generator according to claim 2, characterized in that: A first plane is provided on the inner side wall of the fixing platform, and a countersunk hole is opened on the first plane. A threaded hole is opened on the fixing ring of the cover body corresponding to the countersunk hole. The cover body is fixedly connected to the wheel body through the cooperation of screws, countersunk holes and threaded holes.

4. A pulley for a generator according to claim 2, characterized in that: There are also multiple second planes on the inner side wall of the fixing platform, and grooves are opened on the outer side wall of the fixing platform corresponding to the second planes. An integrally formed clamping block is provided on the inner side wall of the fixing ring of the cover body corresponding to the grooves, and the clamping block is inserted into the corresponding groove.

5. The pulley for a generator according to claim 1, characterized in that: A mounting hole is provided in the middle of the wheel body, and a mounting ring is provided outwardly at the corresponding mounting hole at the rear end of the wheel body. A positioning groove is provided on the inner wall of the mounting hole to pass through the mounting hole and the mounting ring, and a fixing hole is provided on the mounting ring corresponding to the positioning groove.

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