Large trough pulley

Abstract

The utility model discloses a big groove belt pulley, including the wheel body and the wheel cavity of wheel body middle part, be provided with at least one deep wheel groove for accommodating the belt on the wheel body, deep wheel groove includes two side walls and a bottom wall, side wall and bottom wall are integrally formed, the wheel cavity is provided with the reinforcing component in the corresponding bottom wall position, reinforcing component is evenly arranged in the bottom wall side to wheel cavity, and this big grass belt pulley is high in strength, and simple structure.

Description

Technical Field

[0001] This utility model relates to the field of belt pulley technology, specifically a large grooved belt pulley. Background Technology

[0002] In mechanical transmission systems, V-groove pulleys are widely used as key components in various equipment. Existing V-groove pulleys have grooves consisting of two side walls and a bottom wall. The bottom of the V-groove is generally the core area of ​​stress concentration, which greatly reduces the mechanical performance and fatigue strength of the pulley. In practical applications, the bottom of the V-groove is more fragile than other parts. In the spinning process, during the forming of large-groove, multi-groove, large V-groove spinning pulleys, the bottom of the groove is the part with the greatest stress and plastic deformation, resulting in a significant reduction in the thickness of the groove bottom. This makes the pulley prone to breakage during use due to insufficient groove bottom thickness. Existing V-groove pulleys do not have reinforcing components at the bottom, resulting in low bottom strength and easy damage. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a large groove pulley to solve the problem mentioned in the background art that the bottom of the pulley groove does not have a reinforcing component, resulting in low bottom strength and easy damage.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a large groove pulley, comprising a pulley body and a pulley cavity in the middle of the pulley body, wherein the pulley body is provided with at least one deep pulley groove for accommodating a belt, the deep pulley groove comprising two side walls and a bottom wall, the side walls and the bottom wall being integrally formed, and a reinforcing member being provided in the pulley cavity corresponding to the position of the bottom wall, the reinforcing member being circumferentially evenly distributed on the side of the bottom wall facing the pulley cavity.

[0005] As a further improvement of this utility model, the deep wheel groove formed by the combination of the two side walls and the bottom wall is a V-shaped deep wheel groove, and the radial width of the opening of the V-shaped deep wheel groove is greater than the radial width of the bottom of the V-shaped deep wheel groove.

[0006] As a further improvement of this utility model, the reinforcing member has a connecting end for being embedded in the bottom wall and a supporting end for being supported on the side of the bottom wall facing the wheel cavity. The connecting end is embedded in the bottom wall facing the opening direction of the deep wheel groove, and the length of the connecting end is the same as the thickness of the bottom wall.

[0007] As a further improvement of this utility model, the support end includes a wall ring for abutting against the bottom wall and a reinforcing ring connected to the wall ring. A plurality of support ribs are provided between the wall ring and the reinforcing ring. One end of the support rib abuts against the wall ring and the other end abuts against the reinforcing ring. The wall ring and the connecting end are integrally formed.

[0008] As a further improvement of this utility model, a shallow groove is also provided on the wheel body. The shallow groove is a V-shaped shallow groove, and a reinforcing component is provided in the wheel cavity corresponding to the bottom wall of the V-shaped shallow groove. Compared with the prior art, this utility model provides a large groove pulley with the following beneficial effects: the bottom wall and side wall of the deep groove are integrally formed, eliminating welding or splicing gaps, reducing stress concentration points, and enhancing the overall strength of the groove. The reinforcing components evenly distributed circumferentially in the wheel cavity corresponding to the bottom wall further strengthen the structure of the groove bottom. When the pulley is subjected to high stress during operation, the reinforcing components can effectively disperse the stress on the groove bottom, increase the strength of the groove bottom, prevent the groove bottom from being damaged due to excessive stress, improve the fatigue resistance of the pulley, extend its service life, and reduce equipment maintenance costs and downtime risks. Attached Figure Description

[0009] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 The accompanying drawings are for reference only. Figure 2 Enlarged view of the structure of part A in the middle; Figure 4 This is a structural diagram of the reinforcing component of this utility model. Reference numerals: 1. Wheel body; 2. Wheel cavity; 3. Deep wheel groove; 4. Reinforcing component; 5. Shallow wheel groove; 31. Side wall; 32. Bottom wall; 41. Support end; 42. Connecting end; 411. Wall ring; 412. Reinforcing ring; 413. Support rib. Detailed Implementation

[0010] As shown in the figure, in order to achieve the above-mentioned objective, this utility model provides a large groove pulley, including a pulley body 1 and a pulley cavity 2 in the middle of the pulley body 1. The pulley body 1 is provided with at least one deep pulley groove 3 for accommodating the belt. The deep pulley groove 3 includes two side walls 31 and a bottom wall 32. The side walls 31 and the bottom wall 32 are integrally formed. A reinforcing member 4 is provided in the pulley cavity 2 at the position corresponding to the bottom wall 32. The reinforcing members 4 are evenly distributed circumferentially on the side of the bottom wall 32 facing the pulley cavity 2.

[0011] In this design, the pulley body 1 of the large groove pulley can be made of iron and integrally formed by casting. The cavity 2 in the middle of the pulley body 1 is hollow to reduce the overall weight. Several deep grooves 3 for accommodating the belt can be provided on the pulley body 1. These deep grooves 3 are evenly distributed along the circumference of the pulley body 1. The two side walls 31 and the bottom wall 32 of each deep groove 3 are integrally formed by casting. The depth and inner wall of the groove can be formed by spinning in this design without splicing gaps, which can enhance the structural stability. In the cavity 2, corresponding to the position of the bottom wall 32 of each deep groove 3, a reinforcing component 4 is provided. These reinforcing components 4 are evenly distributed circumferentially along the side of the bottom wall 32 facing the cavity 2. During installation, the belt is embedded in the deep groove 3. During operation, the reinforcing component 4 can effectively disperse the stress borne by the bottom wall 32 and improve the service life of the pulley. The reinforcing component 4 in this design can be connected to the bottom wall 32 by means of plug-in, welding, integral forming, etc.

[0012] As an improved specific implementation, the deep wheel groove 3 formed by the combination of two side walls 31 and a bottom wall 32 is a V-shaped deep wheel groove 3, and the radial width of the opening of the V-shaped deep wheel groove is greater than the radial width of the bottom of the V-shaped deep wheel groove.

[0013] In this design, the deep pulley groove 3 formed by the combination of two side walls 31 and a bottom wall 32 is a V-shaped deep pulley groove 3. The dimensions of the groove are precisely controlled by a mold, ensuring that the radial width at the opening is greater than the radial width at the bottom. This structural design allows for better fit with the belt, increases the contact area between the belt and the groove, improves friction, and reduces slippage. When the belt is installed in the deep pulley groove 3, the two sides of the belt fit tightly against the side walls 31, and the bottom contacts the bottom wall 32, ensuring stable power transmission during the transmission process.

[0014] As an improved embodiment, the reinforcing member 4 has a connecting end 42 for being embedded in the bottom wall 32 and a supporting end 41 for being supported on the side of the bottom wall 32 facing the wheel cavity 2. The connecting end 42 is embedded in the bottom wall 32 facing the opening direction of the deep wheel groove 3, and the length of the connecting end 42 is the same as the thickness of the bottom wall 32.

[0015] In this scheme, the connecting end 42 and the supporting end 41 of the reinforcing component 4 can be made of high-strength alloy steel. In this scheme, the connection method between the reinforcing component 4 and the bottom wall 32 is preferably a partial insertion. The connecting end 42 is embedded in the bottom wall 32 facing the opening direction of the deep wheel groove 3, and its length is the same as the thickness of the bottom wall 32, ensuring that the connecting end 42 can be completely embedded in the bottom wall 32, forming a stable connection with the bottom wall 32, and will not protrude from the V-groove. The supporting end 41 is supported on the side of the bottom wall 32 facing the wheel cavity 2. When the pulley is running, the connecting end 42 can transfer part of the stress borne by the bottom wall 32 to the supporting end 41, and then the supporting end 41 can distribute it to the wheel cavity 2, avoiding damage to the bottom wall 32 due to excessive local stress, and enhancing the load-bearing capacity of the bottom wall 32.

[0016] As an improved specific embodiment, the support end 41 includes a wall ring 411 for abutting against the bottom wall 32 and a reinforcing ring 412 connected to the wall ring 411. A plurality of support ribs 413 are provided between the wall ring 411 and the reinforcing ring 412. One end of the support rib 413 abuts against the wall ring 411 and the other end abuts against the reinforcing ring 412. The wall ring 411 and the connecting end 42 are integrally formed.

[0017] In this design, the wall ring 411 abuts against the bottom wall 32, and its shape matches the contour of the bottom wall 32 facing the wheel cavity 2. The reinforcing ring 412 is located in the middle of the wheel cavity 2 and is coaxially arranged with the wall ring 411. Several supporting ribs 413 are evenly arranged between the wall ring 411 and the reinforcing ring 412. The supporting ribs 413 are inclined, with one end welded to the wall ring 411 and the other end welded to the reinforcing ring 412, forming a stable triangular support structure. The wall ring 411 and the connecting end 42 are integrally formed by casting, and the two are firmly connected. This structure of the supporting end 41 can disperse the stress transmitted by the connecting end 42 to the reinforcing ring 412 through the wall ring 411 and the supporting ribs 413, further improving the support strength of the reinforcing component 4 and effectively protecting the bottom wall 32.

[0018] As an improved specific implementation, a shallow wheel groove 5 is also provided on the wheel body 1. The shallow wheel groove 5 is a V-shaped shallow wheel groove 5, and a reinforcing member 4 is provided on the wheel cavity 2 at the position corresponding to the bottom wall 32 of the V-shaped shallow wheel groove 5.

[0019] In implementation, in addition to the deep groove 3, a shallow groove 5 is also provided on the wheel body 1. This shallow groove 5 is suitable for different types of belts, improving the overall operational stability. The above is merely a preferred embodiment of this utility model. The scope of protection of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A large grooved pulley, characterized in that, The device includes a wheel body and a wheel cavity in the middle of the wheel body. The wheel body is provided with at least one deep wheel groove for accommodating a belt. The deep wheel groove includes two side walls and a bottom wall. The side walls and the bottom wall are integrally formed. A reinforcing member is provided in the wheel cavity corresponding to the position of the bottom wall. The reinforcing members are circumferentially distributed on the side of the bottom wall facing the wheel cavity.

2. The large grooved belt pulley according to claim 1, characterized in that, The deep groove formed by the combination of the two sidewalls and the bottom wall is a V-shaped deep groove, and the radial width of the opening of the V-shaped deep groove is greater than the radial width of the bottom of the V-shaped deep groove.

3. The large grooved pulley according to claim 1 or 2, characterized in that, The reinforcing component has a connecting end for being embedded in the bottom wall and a supporting end for being supported on the side of the bottom wall facing the wheel cavity. The connecting end is embedded in the bottom wall facing the opening direction of the deep wheel groove, and the length of the connecting end is the same as the thickness of the bottom wall.

4. The large grooved pulley according to claim 3, characterized in that, The supporting end includes a wall ring for abutting against the bottom wall and a reinforcing ring connected to the wall ring. A plurality of supporting ribs are provided between the wall ring and the reinforcing ring. One end of each supporting rib abuts against the wall ring, and the other end abuts against the reinforcing ring. The wall ring and the connecting end are integrally formed.

5. The large grooved pulley according to claim 1, characterized in that, The wheel body is also provided with a shallow wheel groove, which is a V-shaped shallow wheel groove, and a reinforcing component is provided in the wheel cavity corresponding to the bottom wall of the V-shaped shallow wheel groove.

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