Positioning ring and split type roller structure

Abstract

The utility model relates to the technical field of split type roller structures, in particular to a positioning ring and a split type roller structure. The positioning ring comprises a first semicircular ring used for fixing the roller and a second semicircular ring mainly used for fixing the shaft; the first semicircular ring and the second semicircular ring are butted to form a ring structure, the inner diameter of the ring structure is the same as the diameter of the shaft, and the outer diameter is matched with the aperture of a central hole of the roller; at least one positioning hole is formed in the first semicircular ring, and a first fastener in the positioning hole is used for realizing connection between the first semicircular ring and the roller; a first fastening hole is formed in the first semicircular ring, a second fastening hole is formed in the second semicircular ring, and second fastening pieces used for locking and fixing the shaft are arranged in the first fastening hole and the second fastening hole, so that connection between the first semicircular ring and the second semicircular ring and connection between the positioning ring and the shaft are achieved. According to the positioning ring, rollers with different inner diameters can be flexibly matched with a shaft, and meanwhile, the stability and the precision of connection are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of split roller structures, in particular to a positioning ring and a split roller structure. Background Art

[0002] In industrial production, roller-shaft connections are key components in numerous equipment, including papermaking machines, printing presses, and coating machines. These machines require stable and precise roller rotation to ensure continuous production and consistent product quality. However, traditional roller-shaft connection designs often utilize a single shaft specification to accommodate rollers with varying center hole sizes, a practice with significant limitations.

[0003] First, because the center hole size of rollers can vary depending on production requirements, materials, or manufacturing processes, using a single-size shaft results in a large number of shafts being unused due to inability to adapt to rollers with specific inner diameters. This results in significant resource waste and reduced equipment utilization. Furthermore, this design limits the versatility of the equipment, making it difficult for companies to replace rollers or adjust equipment configurations.

[0004] Secondly, the stability and precision of the connection between the shaft and roller are also important factors affecting equipment performance. Traditional connection methods, due to the limited contact area between the shaft and roller and the lack of effective positioning and fixing mechanisms, are prone to problems such as eccentricity and slippage. These problems not only affect the rotational stability and precision of the roller but can also lead to equipment failure, increase maintenance costs, and reduce production efficiency.

[0005] Patent CN202410367426.4 relates to a split-type mechanical expansion shaft and roller, which relates to the field of expansion shaft technology. This method aims to solve the problem that a single-size expansion shaft cannot adapt to barrels of different lengths. This method mainly uses a movable mechanical air expansion method to adapt to rollers of different lengths. However, the size of the air expansion is limited, and it cannot solve the problem of matching the center hole and shaft of rollers of different sizes. In addition, the structure of the air expansion mechanism is relatively complex, and its stability in use cannot be guaranteed.

[0006] Therefore, in order to overcome the above technical defects and improve the utilization, versatility, connection stability and precision of the roller and shaft connection, it is necessary to improve and innovate the existing roller and shaft connection method.

[0007] In view of this, the present utility model is proposed. Utility Model Content

[0008] The first purpose of the present utility model is to provide a positioning ring for a split roller and shaft, which can achieve flexible adaptation of rollers and shafts of different inner diameters, thereby solving the problem that a single-specification shaft cannot adapt to multiple roller inner diameters, and improving the versatility, flexibility and utilization of the equipment. In addition, the positioning ring can increase the contact area between the shaft and the roller, and introduce an effective positioning and fixing mechanism, which can ensure the stability and accuracy of the roller during rotation, reduce the occurrence of eccentricity, sliding and other problems, and improve product quality and production efficiency. In addition, the positioning ring has a simple structure and a reliable connection with the roller and shaft, which improves the stability of use and reduces the failure rate and maintenance costs.

[0009] The second purpose of the utility model is to provide a split roller structure, which optimizes the connection structure by setting a positioning ring, thereby improving the utilization rate, versatility, connection stability and precision of the connection between the roller and the shaft.

[0010] In order to achieve the above-mentioned purpose of the present invention, the following technical solutions are adopted:

[0011] In the first aspect, the utility model first provides a positioning ring, which is used to fix a split roller and a shaft. The positioning ring includes a first semicircular ring and a second semicircular ring, the first semicircular ring is used to fix the roller, and the second semicircular ring is mainly used to fix the shaft; the first semicircular ring and the second semicircular ring are connected to form a circular ring structure, the inner diameter of the circular ring structure is the same as the diameter of the shaft, and the outer diameter of the circular ring structure matches the aperture of the center hole of the roller; at least one positioning hole is provided on the first semicircular ring, and a first fastener in the positioning hole is used to realize the connection between the first semicircular ring and the roller; a first fastening hole is respectively provided at both ends of the first semicircular ring, and a second fastening hole is respectively provided at both ends of the second semicircular ring; after the first semicircular ring and the second semicircular ring are connected, the two adjacent first fastening holes and the second fastening holes are symmetrically arranged, and a second fastener is provided in the first fastening hole and the second fastening hole, and the second fastening hole is used to lock and fix the shaft to realize the connection between the first semicircular ring and the second semicircular ring and the positioning ring and the shaft.

[0012] Furthermore, at least two positioning holes are provided on the first semicircular ring.

[0013] Furthermore, at least three positioning holes are provided on the first semicircular ring.

[0014] Furthermore, the center line of the positioning hole coincides with the axis of the roller.

[0015] Furthermore, the first fastener includes a bolt.

[0016] Furthermore, the second fastener includes a screw.

[0017] Furthermore, after the first semicircular ring is docked with the second semicircular ring, the center lines of the two adjacent first fastening holes and the second fastening holes coincide with each other, and the center line of the first fastening hole or the second fastening hole is perpendicular to the axis of the roller.

[0018] The utility model further provides a split roller structure, including the positioning ring, a roller and a shaft; wherein, the roller is provided with an assembly hole matching the positioning hole, the roller is sleeved on the shaft, the roller and the shaft are fixed by the positioning ring, and the roller, the shaft and the positioning ring are detachably connected.

[0019] Furthermore, the axis of the roller and the axis of the shaft coincide with each other.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] (1) The positioning ring for the split roller and shaft provided by the utility model can achieve flexible adaptation of rollers and shafts with different inner diameters, thereby solving the problem that a single specification shaft cannot adapt to multiple roller inner diameters, and improving the versatility and flexibility of the equipment.

[0022] (2) The positioning ring provided by the utility model can increase the contact area between the shaft and the roller, and at the same time introduce an effective positioning and fixing mechanism, which has precise positioning, no eccentricity, smooth rotation, and no jumping. It can ensure the stability and accuracy of the roller during rotation, reduce the occurrence of eccentricity, sliding and other problems, and improve product quality and production efficiency.

[0023] (3) The positioning ring provided by the utility model has a simple structure, reduces structural complexity, improves operational stability, and reduces failure rate and maintenance costs.

[0024] (4) The split roller structure provided by the present invention allows the roller and the shaft to be manufactured independently and flexibly connected through a positioning ring. In this way, rollers with different inner diameters can be easily used with the same shaft system, which greatly improves the versatility of the equipment, improves the versatility of the connection between the roller and the shaft, and reduces the complexity and cost of replacing the roller in the equipment. In addition, the present invention provides reliable positioning support by designing components such as positioning rings. At the same time, the adaptation mechanism ensures that the roller can be accurately and stably installed on the shaft, reduces the occurrence of problems such as eccentricity and sliding, improves the stability and accuracy of the roller rotation, and ensures the continuity of the production process and the stability of product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A schematic diagram of the structure of the positioning ring provided by the utility model;

[0027] Figure 2 A schematic diagram of the partial structure of the split roller structure provided by the utility model;

[0028] Figure 3 A schematic diagram of the structure of the shaft provided by the utility model;

[0029] Figure 4 This is a schematic structural diagram of the roller provided by the utility model.

[0030] Reference numerals:

[0031] 100-positioning ring; 1-first semicircular ring; 11-positioning hole; 12-first fastener; 13-first fastening hole; 2-second semicircular ring; 21-second fastening hole; 200-roller; 201-assembly hole; 300-shaft. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments, but those skilled in the art will understand that the embodiments described below are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to illustrate the present invention, and should not be regarded as limiting the scope of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present invention. If specific conditions are not specified in the embodiments, they are carried out according to conventional conditions or the conditions recommended by the manufacturer. If the manufacturer is not specified for the reagents or instruments used, they are all conventional products that can be purchased commercially.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "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 the specific circumstances.

[0035] Unless otherwise specified, terms such as "first aspect," "second aspect," and "third aspect" in this utility model are used for descriptive purposes only and should not be construed as indicating or implying relative importance or quantity, nor as implicitly indicating the importance or quantity of the technical features indicated. Furthermore, terms such as "first," "second," and "third," etc., serve only as non-exhaustive enumerations and descriptions and should not constitute closed-ended limitations on quantity.

[0036] Unless otherwise specified, the terms "include" and "comprising" used in this invention may be open-ended or closed-ended. For example, "include" and "comprising" may mean that other components not listed may also be included or that only the listed components are included.

[0037] In the first aspect, the present invention provides a positioning ring 100 for a split roller 200 and a shaft 300 (rotating shaft 300), such as Figure 1 The figure shows the structure of the positioning ring 100 provided by the present invention. The positioning ring 100 includes a first semicircular ring 1 for fixing the roller 200 and a second semicircular ring 2 mainly for fixing the shaft 300. In other words, the positioning ring 100 is used to fix the separate roller 200 and shaft 300, wherein the first semicircular ring 1 is used to fix the roller 200, and the second semicircular ring 2 is mainly used to fix the shaft 300.

[0038] Among them, see Figure 1The first semicircular ring 1 and the second semicircular ring 2 are connected to form a circular ring structure. The inner diameter of the circular ring structure is the same as the diameter of the shaft 300, and the outer diameter of the circular ring structure matches the diameter of the center hole of the roller 200. In other words, the outer diameter of the circular ring structure depends on the roller 200 with different center hole sizes.

[0039] See also Figure 1 The first semicircular ring 1 is provided with at least one positioning hole 11, and the first fastener 12 in the positioning hole 11 is used to connect the first semicircular ring 1 and the roller 200. That is, the first semicircular ring 1 is fixed to the roller 200 by the first fastener 12.

[0040] There is at least one positioning hole 11, for example, there may be two, three, four, five or more positioning holes.

[0041] See also Figure 1 The first semicircular ring 1 is provided with a first fastening hole 13 at each end, and the second semicircular ring 2 is provided with a second fastening hole 21 at each end. That is, there are two first fastening holes 13, one at each end of the first semicircular ring 1. There are two second fastening holes 21, one at each end of the first semicircular ring 1.

[0042] After the first semicircular ring 1 and the second semicircular ring 2 are docked, the two adjacent first fastening holes 13 and second fastening holes 21 are symmetrically arranged. Second fasteners are disposed in the first fastening holes 13 and the second fastening holes 21. The second fasteners are used to lock and secure the shaft 300, thereby achieving the connection between the first semicircular ring 1 and the second semicircular ring 2, and the connection between the positioning ring 100 and the shaft 300. In other words, the first fastening holes 13 and the second fastening holes 21 are used to secure the shaft 300 and connect the first semicircular ring 1 and the second semicircular ring 2.

[0043] The positioning ring 100 provided by the utility model for the split roller 200 and the shaft 300 achieves flexible adaptation of rollers 200 with different inner diameters and the shaft 300 by optimizing the connection structure, while improving the stability and precision of the connection. For rollers 200 and shafts 300 with different sizes of center holes, after being connected using the positioning ring 100, the positioning is precise, there is no eccentricity, the rotation is stable, and there is no jumping. It can be seen that the utility model not only solves the problem that a single specification of shaft 300 cannot be adapted to rollers 200 with different center hole sizes, and has low utilization and poor versatility, but also solves the problem that eccentricity and sliding are easy to occur between the shaft 300 and the roller 200, and the problem that the structure of the air inflation mechanism is relatively complex and has poor stability in use.

[0044] Specifically, the present invention, by designing a split roller 200 and a positioning ring 100 for the shaft 300, can achieve flexible adaptation of rollers 200 with different inner diameters to the shaft 300, thereby resolving the problem that a single-specification shaft 300 cannot adapt to a variety of roller 200 inner diameters. The present invention improves the versatility and flexibility of the equipment. The present invention optimizes the connection structure, increases the contact area between the shaft 300 and the roller 200, and introduces an effective positioning and fixing mechanism to ensure the stability and accuracy of the roller 200 during rotation, reducing the occurrence of problems such as eccentricity and sliding. The present invention improves product quality and production efficiency. In addition, the present invention aims to provide a simpler and more reliable connection method, reducing structural complexity, improving operational stability, and reducing failure rates and maintenance costs.

[0045] Furthermore, at least two positioning holes 11 are provided on the first semicircular ring 1 , for example, three or four. It is understandable that the number of the first fasteners 12 is the same as the number of the positioning holes 11 .

[0046] Further, see Figure 1 The first semicircular ring 1 is provided with at least three positioning holes 11, for example, four, five or more. It is understandable that the number of the first fasteners 12 is the same as the number of the positioning holes 11.

[0047] Furthermore, the center line of the positioning hole 11 coincides with the axis 300 of the roller 200. This helps ensure the stability and accuracy of the roller 200 during rotation and reduces the occurrence of problems such as eccentricity and sliding.

[0048] Furthermore, the first fastener 12 includes but is not limited to a bolt, which serves to fasten the positioning ring 100 and the roller 200 .

[0049] Furthermore, the second fastener includes but is not limited to a screw, which serves to fasten the positioning ring 100 and the shaft 300 , as well as the first fastener 12 and the second fastener.

[0050] Furthermore, after the first semicircular ring 1 and the second semicircular ring 2 are docked, the center lines of two adjacent first fastening holes 13 and second fastening holes 21 coincide with each other, and the center line of each first fastening hole 13 or each second fastening hole 21 is perpendicular to the axis 300 of the roller 200. This provides a better fastening effect.

[0051] In the second aspect, the present invention provides a split roller structure, see Figure 2 1 is a partial structural diagram of a split roller structure provided by the present invention, wherein the split roller structure includes the positioning ring 100 , a roller 200 and a shaft 300 (rotating shaft 300 ).

[0052] like Figure 3 FIG. 3 is a schematic structural diagram of the shaft 300 .

[0053] like Figure 4 FIG. 2 is a schematic structural diagram of the roller 200 .

[0054] See also Figure 4 The roller 200 is provided with assembly holes 201 that match the positioning holes 11 on the positioning ring 100. It is understood that the number of the assembly holes 201 is the same as the number of the positioning holes 11. Moreover, the positions of the assembly holes 201 are adapted to the positions of the positioning holes 11.

[0055] The roller 200 is sleeved on the outside of the shaft 300 . The roller 200 and the shaft 300 are fixed via the positioning ring 100 . The roller 200 , the shaft 300 , and the positioning ring 100 are detachably connected.

[0056] That is, the roller 200 is detachably connected to the positioning ring 100. It is understandable that, if the roller 200 is used for a long time, it does not need to be disassembled.

[0057] The shaft 300 and the positioning ring 100 are also detachably connected.

[0058] The inner diameter of the positioning ring 100 matches the diameter of the shaft 300, while the outer diameter of the positioning ring 100 is determined by the size of the center hole of the roller 200. By manufacturing positioning rings 100 with varying inner and outer diameters, it can accommodate shafts 300 and rollers 200 of varying sizes. In future applications, a custom-made positioning ring 100 can be customized based on the existing dimensions of the roller 200 and shaft 300. The positioning ring 100 solves the problem of matching the shaft 300 with the center hole of the roller 200, limiting its degrees of freedom in all directions and ensuring stability and reliability. It also addresses the problem of the pneumatic shaft 300's inability to provide stable support for the heavy roller 200.

[0059] Furthermore, the axis 300 line of the roller 200 coincides with the axis 300 line of the shaft 300. This helps ensure the stability and accuracy of the roller 200 during rotation and reduces the occurrence of problems such as eccentricity and sliding.

[0060] Furthermore, the installation steps of the split roller structure are as follows: select a suitable positioning ring 100 according to the size of the roller 200 and the shaft 300, wherein the first semicircular ring 1 is fixed to the roller 200 through the positioning hole 11 with a first fastener 12 such as a bolt, and then the shaft 300 is passed through the center hole of the roller 200 to a suitable position, and the shaft 300 is locked using a second fastener such as a screw through the first fastening hole 13 and the second fastening hole 21, thereby realizing the connection between the first semicircular ring 1 and the second semicircular ring 2.

[0061] The split roller structure provided by the present invention adopts a split design, that is, the roller 200 and the shaft 300 are connected in a detachable and adjustable manner, rather than a traditional single integral type. This design makes the adaptation of the roller 200 and the shaft 300 more flexible, and can easily cope with rollers 200 with different inner diameters, thereby improving the versatility and utilization rate of the equipment. The present invention introduces a positioning ring 100 as a key connecting component, which is used to accurately fix the position of the roller 200 and the shaft 300 to ensure the stability and accuracy of the connection. The positioning ring 100 may have multiple functions, such as adjusting the gap between the roller 200 and the shaft 300, providing reliable positioning support, preventing eccentricity and sliding, etc.

[0062] Furthermore, the split roller structure provided by the present invention has one or more adaptation mechanisms, so that rollers 200 with different inner diameters can be easily and accurately installed on the shaft 300. This includes a mechanical locking mechanism, an adjustable clamping device, or a precision matching structure combined with a positioning ring 100.

[0063] In addition, the split roller structure provided by the present invention simplifies the connection structure as much as possible, reduces the number of parts, and improves the overall reliability and stability while ensuring the functionality.

[0064] In summary, the present invention adopts a split design so that the roller 200 and the shaft 300 can be manufactured independently, and can be flexibly combined through the positioning ring 100. In this way, rollers 200 with different inner diameters can be easily used in conjunction with the same sleeve shaft 300 system, greatly improving the versatility of the equipment. The versatility of the connection between the roller 200 and the shaft 300 is improved, and the complexity and cost of replacing the roller 200 in the equipment are reduced. In addition, the present invention provides reliable positioning support by designing components such as the positioning ring 100. At the same time, the adaptation mechanism ensures that the roller 200 can be accurately and stably installed on the shaft 300, reducing the occurrence of problems such as eccentricity and sliding, improving the stability and accuracy of the rotation of the roller 200, and ensuring the continuity of the production process and the stability of product quality.

[0065] Although the present invention has been illustrated and described using specific embodiments, it should be appreciated that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Those skilled in the art should understand that the technical solutions described in the above embodiments may be modified, or some or all of the technical features therein may be replaced by equivalents, without departing from the spirit and scope of the present invention. However, these modifications or replacements do not deviate from the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention. Therefore, this means that all such replacements and modifications within the scope of the present invention are included in the appended claims.

Claims

1. A positioning ring, characterized in that: The positioning ring is used to fix the split roller and shaft, and the positioning ring includes a first semicircular ring and a second semicircular ring. The first semicircular ring is used to fix the roller, and the second semicircular ring is mainly used to fix the shaft. The first semicircular ring and the second semicircular ring are connected to form a circular ring structure, the inner diameter of the circular ring structure is the same as the diameter of the shaft, and the outer diameter of the circular ring structure matches the aperture of the center hole of the roller; At least one positioning hole is provided on the first semicircular ring, and a first fastener in the positioning hole is used to realize the connection between the first semicircular ring and the roller; A first fastening hole is respectively provided at both ends of the first semicircular ring, and a second fastening hole is respectively provided at both ends of the second semicircular ring; after the first semicircular ring and the second semicircular ring are docked, the two adjacent first fastening holes and the second fastening holes are symmetrically arranged, and second fasteners are provided in the first fastening holes and the second fastening holes, and the second fastening holes are used to lock and fix the shaft to achieve the connection between the first semicircular ring and the second semicircular ring and the positioning ring and the shaft.

2. The positioning ring according to claim 1, characterized in that: At least two positioning holes are provided on the first semicircular ring.

3. The positioning ring according to claim 1, characterized in that: At least three positioning holes are provided on the first semicircular ring.

4. The positioning ring according to claim 1, characterized in that: The center line of the positioning hole coincides with the axis of the roller.

5. The positioning ring according to claim 1, characterized in that: The first fastener includes a bolt.

6. The positioning ring according to claim 1, characterized in that: The second fastener includes a screw.

7. The positioning ring according to claim 1, characterized in that: After the first semicircular ring and the second semicircular ring are docked, the center lines of the two adjacent first fastening holes and the second fastening holes coincide with each other, and the center line of the first fastening hole or the second fastening hole is perpendicular to the axis of the roller.

8. A split roller structure, characterized in that: It comprises a positioning ring as described in any one of claims 1 to 7, a roller and a shaft; wherein, the roller is provided with an assembly hole matching the positioning hole, the roller is sleeved on the shaft, the roller and the shaft are fixed by the positioning ring, and the roller, the shaft and the positioning ring are detachably connected.

9. The split roller structure according to claim 8, characterized in that: The axis of the roller coincides with the axis of the shaft.

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