A precision spinning forming engine pulley

Abstract

The utility model relates to the technical field of engine pulley, especially to a precision spinning forming engine pulley, its technical scheme includes: pulley body, is set up with the belt groove on the pulley body, the inner wall bottom of belt groove is equipped with bottom anti -skid part, both ends of belt groove are equipped with side anti -skid part, the bottom anti -skid piece is fixed with bottom anti -skid strip on, the side anti -skid piece is fixed with side end anti -skid strip on. The utility model discloses the combination design of bottom anti -skid part and side anti -skid part, can enhance the antiskid performance of pulley and belt from all directions, effectively avoid the skidding problem in the power transmission process, at the same time, the detachable mounting structure is adopted to the anti -skid piece, when the anti -skid strip wears, can replace the anti -skid piece alone, need not to replace the pulley as a whole, significantly reduced the use cost, simplified the maintenance process, the practicality is stronger, is applicable to the power transmission scene of various automobile engines.

Description

Technical Field

[0001] This utility model relates to the field of engine pulley technology, specifically to a precision spin-formed engine pulley. Background Technology

[0002] In modern society, automobiles have become an indispensable means of transportation for people's daily travel, and the stability of their transmission system directly affects the overall vehicle's performance and user experience. In the power transmission structure of automobiles, the power transmission of the engine mostly relies on belt drive, and the pulley, as the core key component of the belt drive assembly, is widely used in automotive transmission systems due to its advantages of effectively mitigating load impacts, smooth operation, low noise and low vibration, as well as its simple structure and convenient maintenance.

[0003] However, existing automotive pulleys commonly experience slippage during long-term, high-frequency use. This not only reduces power transmission efficiency but can also lead to equipment malfunctions and affect the normal operation of the vehicle. Currently, the industry mainly improves anti-slip performance by creating anti-slip textures on the pulley surface. However, this structure has significant drawbacks: the anti-slip textures are prone to gradual wear under long-term friction. Once the wear reaches a certain level, the entire pulley needs to be replaced, increasing user costs and causing inconvenience due to the cumbersome replacement process. This fails to meet the demands for efficiency and economy in practical applications. Therefore, there is an urgent need to optimize and improve the structure of existing automotive pulleys to address these technical pain points. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a precision spin-formed engine pulley, which solves the problems mentioned in the background art.

[0005] The solution to the above-mentioned technical problems provided by this utility model is as follows: A precision spin-formed engine pulley includes a pulley body, on which a belt groove is formed; The bottom of the inner wall of the belt groove is provided with a bottom anti-slip component, and both ends of the belt groove are provided with side anti-slip components. The bottom anti-slip component is fixed with a bottom anti-slip strip, and the side anti-slip component is fixed with a side end anti-slip strip.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, a mounting groove is provided on the side end of the pulley body, and a connector is installed in the mounting groove.

[0008] The beneficial effects of adopting the above-mentioned further solutions are: The mounting slot design provides positioning and installation space for the connector, ensuring the coaxiality of the connector and the pulley body, and the connector is used as a connection medium between the pulley and the engine output shaft.

[0009] Furthermore, the bottom anti-slip component is provided with a first mounting bolt, and the bottom anti-slip component is connected to the pulley body through the first mounting bolt.

[0010] The beneficial effects of adopting the above-mentioned further solutions are: The first mounting bolt enables a detachable fixed connection between the bottom anti-slip component and the pulley body. Compared with the traditional one-piece molded structure, when the bottom anti-slip component wears down due to long-term friction, there is no need to replace the entire pulley. Only the bottom anti-slip component needs to be replaced by removing the first mounting bolt, which reduces maintenance costs and replacement difficulty.

[0011] Furthermore, the side anti-slip component is provided with a second mounting bolt, and the side anti-slip component is connected to the pulley body through the second mounting bolt.

[0012] The beneficial effects of adopting the above-mentioned further solutions are: Consistent with the bolt connection logic of the bottom anti-slip component, the second mounting bolt provides a secure and detachable assembly method for the side anti-slip component. From an anti-slip perspective, the bolt connection ensures that the side anti-slip component fits tightly against the inner sides of both ends of the belt groove, maintaining effective contact between the side anti-slip strip and the belt side at all times, preventing the belt from slipping or shifting due to insufficient side friction during transmission. From a maintenance perspective, when the side anti-slip strip wears out, the side anti-slip component can be replaced by removing the second mounting bolt, simplifying the maintenance process and reducing downtime.

[0013] Furthermore, a plurality of the side anti-slip strips and the bottom anti-slip strips are provided, and the plurality of the side anti-slip strips and the bottom anti-slip strips are arranged in a ring array relative to the side anti-slip components and the bottom anti-slip components.

[0014] The beneficial effects of adopting the above-mentioned further solutions are: The circular array design allows several side and bottom anti-slip strips to evenly cover the surfaces of the side and bottom anti-slip components. When the belt contacts the pulley, the anti-slip strips can form multi-point, uniform frictional contact with the belt, avoiding excessive local contact pressure that could lead to rapid wear of the anti-slip strips and extending their service life. At the same time, the evenly distributed anti-slip strips can provide continuous and stable friction during belt drive, avoiding uneven friction caused by missing or worn anti-slip strips, thus preventing belt slippage, vibration, and other problems.

[0015] Furthermore, a connecting block is installed at one end of the bottom anti-slip component, and the connecting block is slidably sleeved on the end of the bottom anti-slip component away from the connecting block, and the connecting block is connected to the bottom anti-slip component by a third mounting bolt.

[0016] The beneficial effects of adopting the above-mentioned further solutions are: The sliding engagement between the connecting block and the bottom anti-slip component, along with the third mounting bolt, enables the installation and disassembly of the bottom anti-slip component.

[0017] This invention provides a precision spin-formed engine pulley. It has the following advantages: In terms of improved anti-slip performance, this pulley utilizes a combined anti-slip structure of "bottom anti-slip components + side anti-slip components" to form a comprehensive friction protection system. The bottom anti-slip strips on the bottom anti-slip components are in close contact with the bottom surface of the belt, while the side anti-slip strips on the side anti-slip components precisely fit the sides of the belt. Both types of anti-slip strips are evenly distributed in a circular array, providing continuous and stable friction to the belt from four directions: top, bottom, left, and right. This significantly reduces the risk of belt slippage under high-speed transmission and high-load conditions, while also preventing component wear caused by excessive local friction. This significantly improves the smoothness and reliability of power transmission, ensuring the efficient operation of the engine transmission system. In terms of ease of maintenance and cost control, all anti-slip components adopt a bolt-detachable connection design: the bottom anti-slip component is fixed to the pulley body by the first mounting bolt, and the side anti-slip component is assembled by the second mounting bolt. When the anti-slip strip wears out due to long-term use, there is no need to replace the entire pulley body. Only the corresponding bolts need to be removed to replace the anti-slip component individually. This not only simplifies the maintenance operation process and reduces downtime, but also reduces the user's maintenance costs and parts replacement costs. It avoids the resource waste problem of traditional one-piece molded structures being scrapped due to local wear, and extends the service life of the pulley body. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0019] In the attached diagram: Figure 1 This is a front view schematic diagram of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is a bottom view of the anti-slip component of the present invention.

[0020] The attached diagram lists the components represented by each number as follows: 1. Pulley body; 101. Mounting groove; 102. Connector; 103. Belt groove; 2. Bottom anti-slip component; 201. First mounting bolt; 202. Bottom anti-slip strip; 203. Connecting block; 204. Third mounting bolt; 3. Side anti-slip component; 301. Second mounting bolt; 302. Side anti-slip strip. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 4 As shown, the embodiments provided by this utility model are as follows: Example: A precision spin-formed engine pulley, including a pulley body 1, on which a belt groove 103 is formed; The bottom of the inner wall of the belt groove 103 is provided with a bottom anti-slip component 2, and both ends of the belt groove 103 are provided with side anti-slip components 3. The bottom anti-slip component 2 is fixedly provided with a bottom anti-slip strip 202, and the side anti-slip component 3 is fixedly provided with a side end anti-slip strip 302. The side end of the pulley body 1 is provided with a mounting groove 101, and a connector 102 is installed in the mounting groove 101. The design of the mounting groove 101 provides positioning and installation space for the connector 102, ensuring the coaxiality of the connector 102 and the pulley body 1. The connector 102 is used as a connection medium between the pulley and the engine output shaft. The bottom anti-slip component 2 is provided with a first mounting bolt 201. The bottom anti-slip component 2 is connected to the pulley body 1 through the first mounting bolt 201. The first mounting bolt 201 realizes the detachable fixed connection between the bottom anti-slip component 2 and the pulley body 1. Compared with the traditional one-piece molded structure, when the bottom anti-slip component 2 wears down due to long-term friction, it is not necessary to replace the entire pulley. Only the first mounting bolt 201 needs to be removed to replace the bottom anti-slip component 2 separately, reducing maintenance costs and replacement difficulty. The side anti-slip component 3 is equipped with a second mounting bolt 301. The side anti-slip component 3 is connected to the pulley body 1 through the second mounting bolt 301, which is consistent with the bolt connection logic of the bottom anti-slip component 2. The second mounting bolt 301 provides a stable and detachable assembly method for the side anti-slip component 3. From the perspective of anti-slip, the bolt connection can ensure that the side anti-slip component 3 fits tightly against the inner sides of both ends of the belt groove 103, so that the side anti-slip strip 302 always maintains effective contact with the side of the belt, avoiding the belt from slipping or deviating due to insufficient side friction during transmission. From the perspective of maintenance, when the side anti-slip strip 302 is worn, the side anti-slip component 3 can be replaced by removing the second mounting bolt 301, simplifying the maintenance process and reducing downtime for maintenance. Several side anti-slip strips 302 and bottom anti-slip strips 202 are provided, and these strips are arranged in a ring array relative to the side anti-slip component 3 and the bottom anti-slip component 2. The ring array design allows the strips to evenly cover the surfaces of the side anti-slip component 3 and the bottom anti-slip component 2. When the belt contacts the pulley, the anti-slip strips can form multi-point, uniform frictional contact with the belt, avoiding excessive local contact pressure that could lead to rapid wear of the anti-slip strips and extending their service life. At the same time, the evenly distributed anti-slip strips can provide continuous and stable friction during belt drive, avoiding uneven friction caused by missing or worn anti-slip strips, thereby preventing belt slippage, vibration, and other problems. A connecting block 203 is installed at one end of the bottom anti-slip component 2. The connecting block 203 is slidably sleeved on the end of the bottom anti-slip component 2 away from the connecting block 203. The connecting block 203 is connected to the bottom anti-slip component 2 by a third mounting bolt 204. The sliding sleeve engagement between the connecting block 203 and the bottom anti-slip component 2, along with the third mounting bolt 204, enables the installation and disassembly of the bottom anti-slip component 2.

[0023] Working principle: Assembly positioning and power connection: First, install the connector 102 into the mounting groove 101 on the side of the pulley body 1. Use the positioning function of the mounting groove 101 to ensure that the connector 102 and the pulley body 1 are coaxial. The pulley body 1 is fixedly connected to the engine output shaft by the connector 102, thus completing the assembly of the pulley and the power source, laying the foundation for subsequent power transmission, and avoiding radial runout caused by misalignment. Anti-slip component assembly and adaptation adjustment: For the bottom anti-slip component 2: First, adjust the fitting length between the bottom anti-slip component 2 and the connecting block 203 according to the actual width of the belt groove 103. After the length is suitable, fix the connecting block 203 and the bottom anti-slip component 2 with the third mounting bolt 204. Then, install the adjusted bottom anti-slip component 2 on the bottom of the inner wall of the belt groove 103 with the first mounting bolt 201, ensuring that the bottom anti-slip strip 202 on the surface of the bottom anti-slip component 2 faces upward and can contact the bottom surface of the belt. Regarding the side anti-slip component 3: By using the second mounting bolt 301, the two side anti-slip components 3 are respectively fixed to the inner sides of both ends of the belt groove 103, so that the side anti-slip strips 302 on the side anti-slip component 3 face the inner side of the belt groove 103 and can fit against the side of the belt, thus completing the assembly of the all-round anti-slip structure. Anti-slip function in power transmission When the engine starts, the output shaft drives the pulley body 1 to rotate synchronously through the connector 102, and the pulley body 1 transmits power to other transmission components through the belt in the belt groove 103. During transmission, on the bottom anti-slip part 2 at the bottom end of the belt groove 103, a number of bottom anti-slip strips 202 arranged in a ring array form multi-point friction with the bottom surface of the belt, providing axial anti-slip force for the belt and preventing relative slippage between the belt and the pulley body 1. Meanwhile, the side anti-slip strips 302, which are also arranged in a ring array on the side anti-slip parts 3 at both ends of the belt groove 103, are in close contact with the side of the belt, providing radial constraint force to prevent the belt from slipping or deviating during high-speed rotation. This ensures stable contact between the belt and the pulley from four directions: up, down, left, and right, and ensures efficient power transmission. Maintenance and replacement after wear When the bottom anti-slip strip 202 or the side anti-slip strip 302 wears down due to long-term friction, resulting in a decrease in anti-slip effect, it is not necessary to replace the entire pulley body 1. If the bottom anti-slip strip 202 is worn, the bottom anti-slip part 2 can be removed by disassembling the first mounting bolt 201. After replacing the bottom anti-slip part 2, it can be fixed again with the first mounting bolt 201. If the side anti-slip strip 302 is worn, the side anti-slip part 3 can be replaced by disassembling the second mounting bolt 301, which can quickly restore the anti-slip performance and reduce maintenance costs and downtime.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A precision spin-formed engine pulley, comprising a pulley body (1), wherein a belt groove (103) is formed on the pulley body (1), characterized in that: The bottom of the inner wall of the belt groove (103) is provided with a bottom anti-slip component (2), and both ends of the belt groove (103) are provided with side anti-slip components (3). The bottom anti-slip component (2) is fixedly provided with a bottom anti-slip strip (202), and the side anti-slip component (3) is fixedly provided with a side anti-slip strip (302).

2. The precision spin-formed engine pulley according to claim 1, characterized in that: The pulley body (1) has a mounting groove (101) on its side end, and a connector (102) is installed in the mounting groove (101).

3. The precision spin-formed engine pulley according to claim 1, characterized in that: The bottom anti-slip component (2) is provided with a first mounting bolt (201), and the bottom anti-slip component (2) is connected to the pulley body (1) through the first mounting bolt (201).

4. The precision spin-formed engine pulley according to claim 1, characterized in that: The side anti-slip component (3) is provided with a second mounting bolt (301), and the side anti-slip component (3) is connected to the pulley body (1) through the second mounting bolt (301).

5. The precision spin-formed engine pulley according to claim 1, characterized in that: The side anti-slip strip (302) and the bottom anti-slip strip (202) are provided in a plurality of units, and the plurality of the side anti-slip strip (302) and the bottom anti-slip strip (202) are arranged in a ring array relative to the side anti-slip member (3) and the bottom anti-slip member (2).

6. The precision spin-formed engine pulley according to claim 1, characterized in that: One end of the bottom anti-slip component (2) is equipped with a connecting block (203). The connecting block (203) is slidably sleeved on the end of the bottom anti-slip component (2) away from the connecting block (203), and the connecting block (203) is connected to the bottom anti-slip component (2) by a third mounting bolt (204).

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