Polyurethane printing sun wheel assembly

Abstract

The utility model discloses a polyurethane printing sun gear assembly which comprises an inner ring piece and an outer ring piece, the outer ring piece is detachably connected to the outer side of the inner ring piece, the outer wall of the inner ring piece is of a wavy structure, and the inner wall of the outer ring piece and the outer wall of the inner ring piece are consistent in shape. According to the inner ring piece and the outer ring piece which are mutually embedded through the wave-shaped structure, when the abrasion reaches a certain degree, only the outer ring piece needs to be replaced, so that the use cost is reduced, the material waste is reduced, the relative rotation of the inner ring piece and the outer ring piece is prevented, the continuity of the structure is kept, and the fracture risk is obviously reduced. In addition, the wavy structure provides a larger contact area, so that the connection between the inner ring piece and the outer ring piece is more stable, and the durability and the reliability of the whole assembly are improved.

Description

Technical Field

[0001] The utility model relates to a polyurethane printed sun wheel assembly. Background Art

[0002] Polyurethane printing sun wheels are a key rotating component widely used in printing machinery. They are usually responsible for transmitting power and guiding the precise movement of printing media (such as paper, plastic film, etc.). Traditional polyurethane sun wheel designs mostly adopt an integrated structure. Once the sun wheel is damaged or worn, it often needs to be replaced as a whole, which not only increases maintenance costs, but may also lead to extended production downtime and affect production.

[0003] The utility model patent with authorization announcement number CN 217971771U is equipped with detachable inner and outer rims. When worn, only the outer rim can be replaced to reduce the cost of use. However, the inner and outer rims are connected by grooves and ridges set at intervals, and there may be a risk of breakage when rotating. Utility Model Content

[0004] The main purpose of the utility model is to provide a polyurethane printed sun wheel assembly to solve the problems raised in the above background technology.

[0005] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0006] A polyurethane printed sun gear assembly comprises an inner ring member and an outer ring member, wherein the outer ring member is detachably connected to the outer side of the inner ring member, the outer wall of the inner ring member is in a wavy structure, and the inner wall of the outer ring member is consistent in shape with the outer wall of the inner ring member.

[0007] Preferably, an inner ring block is provided at one end of the outer wall of the inner ring member, and an inner ring groove is provided at the other end of the outer wall of the inner ring member.

[0008] Preferably, one end of the inner wall of the outer ring member is provided with an outer ring groove for use with the inner ring block, and the other end of the inner wall of the outer ring member is provided with an outer ring block for use with the inner ring groove.

[0009] Preferably, the inner ring block and the outer ring groove are provided with a plurality of first threaded holes at intervals along the circumferential direction of the inner ring block, and the inner ring groove and the outer ring block are provided with a plurality of second threaded holes at intervals along the circumferential direction of the inner ring groove.

[0010] Preferably, the inner ring block and the inner ring groove are both wavy structures.

[0011] Preferably, the outer ring member is provided with a plurality of outer through grooves along its axial direction, and the plurality of outer through grooves are evenly distributed along the circumference of the outer ring member.

[0012] Preferably, an inner through groove is provided on the inner ring member at a position corresponding to the outer through groove.

[0013] Preferably, a through hole is provided at the center of the inner ring member, and a plurality of spiral grooves are provided on the outer side of the through hole along the circumferential direction of the inner ring member.

[0014] Beneficial technical effects of the utility model:

[0015] 1. The inner ring and outer ring provided by the utility model are mutually engaged through the wave-shaped structure. When the wear reaches a certain degree, only the outer ring needs to be replaced. This not only reduces the use cost and reduces material waste, but also prevents the inner and outer rings from rotating relative to each other while maintaining the continuity of the structure and significantly reducing the risk of breakage. In addition, the wave-shaped structure provides a larger contact area, making the connection between the inner and outer rings more stable, thereby improving the durability and reliability of the entire component.

[0016] 2. The inner through groove and the outer through groove provided by the utility model can work together with the spiral groove to reduce the weight of the sun gear and improve the ventilation effect. At the same time, less material is required for the outer ring part, further reducing the use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a sun gear assembly according to an embodiment of the utility model;

[0018] Figure 2 This is a front structural schematic diagram of a sun gear assembly according to an embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the back structure of the sun gear assembly of an embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the inner ring member of an embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the outer ring structure of an embodiment of the utility model.

[0022] In the figure: 1, inner ring member; 2, outer ring member; 3, inner ring block; 4, inner ring groove; 5, outer ring groove; 6, outer ring block; 7, first threaded hole; 8, second threaded hole; 9, outer through groove; 10, inner through groove; 11, through hole; 12, spiral groove. DETAILED DESCRIPTION

[0023] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation methods of the present invention are not limited thereto.

[0024] like Figure 1-Figure 5As shown, the polyurethane printed sun gear assembly provided in this embodiment includes an inner ring member 1 and an outer ring member 2. The outer ring member 2 is detachably connected to the outside of the inner ring member 1. The outer wall of the inner ring member 1 is in a wavy structure. The inner wall of the outer ring member 2 is consistent in shape with the outer wall of the inner ring member 1. When the outer ring member 2 is worn, it can be replaced separately without replacing the entire sun gear assembly, thereby reducing maintenance costs. The wavy shape provides a larger surface area, increases the contact area between the inner ring member 1 and the outer ring member 2, helps to better disperse the load, and improves the mechanical stability of the structure.

[0025] In this embodiment, if Figure 4 and Figure 5 As shown, an inner ring block 3 is provided at one end of the outer wall of the inner ring member 1, an inner ring groove 4 is provided at the other end of the outer wall of the inner ring member 1, an outer ring groove 5 used in conjunction with the inner ring block 3 is provided at one end of the inner wall of the outer ring member 2, and an outer ring block 6 used in conjunction with the inner ring groove 4 is provided at the other end of the inner wall of the outer ring member 2, so that the contact area between the inner ring member 1 and the outer ring member 2 can be further increased, and they are more closely combined to provide a stable connection.

[0026] In this embodiment, if Figure 4 and Figure 5 As shown, a plurality of first threaded holes 7 are arranged at circumferential intervals on the inner ring block 3 and the outer ring groove 5, and a plurality of second threaded holes 8 are arranged at circumferential intervals on the inner ring groove 4 and the outer ring block 6. They are connected by bolts, which facilitates installation and disassembly.

[0027] In this embodiment, if Figure 4 As shown, the inner ring block 3 and the inner ring groove 4 are both wavy structures. The wavy structure increases the contact area between the inner ring member 1 and the outer ring member 2, helps to better disperse the load and improve the mechanical stability of the structure.

[0028] In this embodiment, if Figure 2 and Figure 3 As shown, the outer ring member 2 is provided with a plurality of outer through grooves 9 along its axial direction, and the plurality of outer through grooves 9 are evenly distributed along the circumference of the outer ring member 2, and inner through grooves 10 are provided at positions corresponding to the outer through grooves 9 on the inner ring member 1, so as to improve the heat dissipation effect and reduce the overall weight.

[0029] In this embodiment, if Figure 1 As shown, a through hole 11 is provided at the center of the inner ring member 1 for connecting the rotating shaft, and a plurality of spiral grooves 12 are provided on the outer side of the through hole 11 along the circumference of the inner ring member 1 to enhance air circulation.

[0030] In summary, in this embodiment, the inner ring member 1 and the outer ring member 2 that are mutually engaged through the wavy structure provided in this embodiment only need to replace the outer ring member 2 when the wear reaches a certain degree. This not only reduces the use cost and reduces material waste, but also prevents the inner ring member 1 and the outer ring member 2 from rotating relative to each other while maintaining the continuity of the structure, significantly reducing the risk of breakage. In addition, the wavy structure provides a larger contact area, making the connection between the inner ring member 1 and the outer ring member 2 more stable, thereby improving the durability and reliability of the entire component; the inner through groove 10 and the outer through groove 9 provided can work together with the spiral groove 12 to reduce the weight of the sun gear, improve the ventilation effect, and at the same time make the outer ring member 2 require less material, further reducing the use cost.

[0031] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. A polyurethane printed sun gear assembly, characterized in that: The invention comprises an inner ring member (1) and an outer ring member (2), wherein the outer ring member (2) is detachably connected to the outer side of the inner ring member (1), the outer wall of the inner ring member (1) is in a wavy structure, and the inner wall of the outer ring member (2) is consistent in shape with the outer wall of the inner ring member (1).

2. A polyurethane printing sun gear assembly according to claim 1, characterized in that: An inner ring block (3) is provided at one end of the outer wall of the inner ring member (1), and an inner ring groove (4) is provided at the other end of the outer wall of the inner ring member (1).

3. A polyurethane printing sun gear assembly according to claim 2, characterized in that: One end of the inner wall of the outer ring member (2) is provided with an outer ring groove (5) for use with the inner ring block (3), and the other end of the inner wall of the outer ring member (2) is provided with an outer ring block (6) for use with the inner ring groove (4).

4. A polyurethane printing sun gear assembly according to claim 3, characterized in that: The inner ring block (3) and the outer ring groove (5) are provided with a plurality of first threaded holes (7) at intervals along the circumference of the inner ring block (3), and the inner ring groove (4) and the outer ring block (6) are provided with a plurality of second threaded holes (8) at intervals along the circumference of the inner ring groove (4).

5. The polyurethane printing sun gear assembly according to claim 2, characterized in that: The inner ring block (3) and the inner ring groove (4) are both of wavy structure.

6. The polyurethane printing sun gear assembly according to claim 1, characterized in that: The outer ring member (2) is provided with a plurality of external through grooves (9) along its axial direction, and the plurality of external through grooves (9) are evenly distributed along the circumference of the outer ring member (2).

7. The polyurethane printing sun gear assembly according to claim 1, characterized in that: An inner through groove (10) is provided at a position on the inner ring member (1) corresponding to the outer through groove (9).

8. The polyurethane printing sun gear assembly according to claim 1, characterized in that: A through hole (11) is provided at the center of the inner ring member (1), and a plurality of spiral grooves (12) are provided on the outer side of the through hole (11) along the circumference of the inner ring member (1).

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