Roller piece positioning structure and split type structure roller

Abstract

The utility model discloses a roller piece positioning structure and a split type structure roller, and relates to the technical field of rolling equipment, the roller piece positioning structure and the split type structure roller provided by the utility model can quickly, accurately and reliably limit a roller piece on a roller shaft through mutual matching of an axial positioning piece, a circumferential positioning piece and a pressing device, so that the roller piece positioning structure is simple in structure and convenient to use. The requirement for rapidly replacing the roller piece can be met, and meanwhile, the axial positioning piece, the circumferential positioning piece and the pressing device are only subjected to unidirectional acting force, so that the service life of the axial positioning piece, the circumferential positioning piece and the pressing device is long, and the reliability of the rolling equipment can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of roller pressing equipment technology, specifically to a roller positioning structure and a split-type roller structure. Background Technology

[0002] In roller pressing equipment, the roller surfaces are subjected to high pressure and wear quickly under the action of materials. If the roller surface and roller shaft are a single unit, the entire unit must be replaced when needed, resulting in high replacement costs. If the roller surface and roller shaft are designed as separate units, only the roller surface needs to be replaced when it is damaged, which can significantly reduce replacement costs. This method is particularly suitable for working conditions where the roller surface is severely worn.

[0003] In some split-type structures, locating keys are used to position the rollers on the roller surface. However, the locating components used are usually cylindrical structures with a circular cross-section. In order to achieve axial positioning, there is not enough clearance between the roller and the shaft in the circumferential direction. Thus, when the roller is subjected to circumferential force, the locating key will also be subjected to circumferential force while performing axial positioning. That is, it will be subjected to both axial and circumferential forces at the same time, which makes the locating key prone to damage and affects the working efficiency and quality of the roller pressing equipment. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned problems by providing a roller positioning structure and a split-type roller structure. Through the cooperation of axial positioning components, circumferential positioning components, and a clamping device, the roller can be quickly, accurately, and reliably restricted to the roller shaft, meeting the needs of rapid roller replacement. At the same time, the axial positioning components, circumferential positioning components, and clamping device are all subjected to forces in only one direction, thus extending their service life and effectively improving the reliability of the roller pressing equipment.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A roller positioning structure includes a roller that partially covers the roller surface of a roller shaft. The roller has a first axial positioning groove and a first circumferential positioning groove. The roller shaft has a second axial positioning groove and a second circumferential positioning groove. The first axial positioning groove matches the second axial positioning groove, and the first circumferential positioning groove matches the second circumferential positioning groove. An axial positioning element that restricts the roller's axial movement along the roller shaft is assembled between the first axial positioning groove and the second axial positioning groove. A circumferential positioning element that restricts the roller's circumferential movement along the roller shaft is assembled between the first circumferential positioning groove and the second circumferential positioning groove. The middle part of the roller is a rolling working area, and the edge is a non-rolling working area. A pressing device that restricts the roller's radial movement along the roller shaft is assembled in the non-rolling working area.

[0007] Furthermore, there is a first circumferential distance between the axial positioning member and the first axial positioning groove and / or the second axial positioning groove, and there is a second circumferential distance between the circumferential positioning member and the first circumferential positioning groove and / or the second circumferential positioning groove. The second circumferential distance is greater than or equal to 0, and the sum of the first circumferential distances corresponding to each axial positioning member is greater than the sum of the second circumferential distances corresponding to each circumferential positioning member.

[0008] Furthermore, there is a first axial distance between the axial positioning member and the first axial positioning groove and / or the second axial positioning groove, and there is a second axial distance between the circumferential positioning member and the first circumferential positioning groove and / or the second circumferential positioning groove. The first axial distance is greater than or equal to 0, and the sum of the second axial distances corresponding to each circumferential positioning member is greater than the sum of the first axial distances corresponding to each axial positioning member.

[0009] Furthermore, the pair of first circumferential positioning grooves are disposed opposite to each other at both ends of the roller, and the first axial positioning groove is disposed in the middle of the roller.

[0010] Furthermore, the first axial positioning groove is disposed in the circumferential center of the roller, and the axis of the first circumferential positioning groove coincides with that of the first axial positioning groove.

[0011] Furthermore, the clamping device is a clamping ring sleeved on the roller shaft. The roller is provided with a first connecting hole for installing a connector, and the clamping ring is provided with a second connecting hole corresponding to the first connecting hole. The connector passes through the first connecting hole and the second connecting hole and restricts the roller to the clamping ring.

[0012] Furthermore, the axial edge of the roller has a stepped structure, and the clamping ring includes a clamping part and an assembly part. The assembly part is sleeved on the roller shaft, and one end of the clamping part is connected to the assembly part and the other end is assembled to the stepped structure of the roller. The radial height of the clamping ring is less than or equal to the radial height of the roller. The assembly part is provided with a third circumferential positioning groove that matches the circumferential positioning component. The circumferential positioning component is assembled in the receiving space formed by the cooperation of the first circumferential positioning groove, the second circumferential positioning groove and the third circumferential positioning groove. The circumferential positioning component restricts the circumferential displacement of the clamping ring relative to the roller shaft.

[0013] Furthermore, the mating part and the step structure are mutually matching inclined structures, and the inclined structure forms an angle with the axis. The inclined structure is an inclined plane or an inclined arc surface.

[0014] Furthermore, both sides of the roller are stepped structures, and pairs of clamping rings are assembled opposite each other on the axial sides of the roller; the second connecting hole is provided in the clamping part; the connecting part includes a pull screw and a nut, the pull screw passes through the second connecting hole of one clamping device, the first connecting hole of the roller, and the second connecting hole of another clamping device in sequence along the axial direction, and the two ends of the pull screw are respectively equipped with nuts that restrict the clamping device from moving relative to the roller along the axial direction.

[0015] A split-type roller structure includes a roller shaft and multiple roller plates capable of covering the roller shaft circumferentially. Further, each roller plate is provided with a first axial positioning groove and a first circumferential positioning groove, and the roller shaft is provided with a second axial positioning groove and a second circumferential positioning groove. The first axial positioning groove matches the second axial positioning groove, and the first circumferential positioning groove matches the second circumferential positioning groove. An axial positioning element that restricts the roller plate's axial movement along the roller shaft is assembled between the first axial positioning groove and the second axial positioning groove, and a circumferential positioning element that restricts the roller plate's circumferential movement along the roller shaft is assembled between the first circumferential positioning groove and the second circumferential positioning groove. The middle part of each roller plate is a rolling working area, and the edges are non-rolling working areas. A clamping device that restricts the roller plate's radial movement along the roller shaft is assembled in the non-rolling working area. The clamping device is a clamping ring sleeved on the roller shaft. The roller plate is provided with a first connecting hole for installing a connector, and the clamping ring is provided with a second connecting hole corresponding to the first connecting hole. The connector passes through the first connecting hole and the second connecting hole and restricts the roller plate to the clamping ring.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0017] 1. This utility model, through the cooperation of axial positioning components, circumferential positioning components and clamping devices, can quickly, accurately and reliably restrict the rollers to the roller shaft, thus meeting the needs of quick roller replacement.

[0018] 2. The axial positioning component, circumferential positioning component, and clamping device of this utility model are all subjected to forces in only one direction. Therefore, the service life of the axial positioning component, circumferential positioning component, and clamping device is long, which can effectively improve the reliability of the roller pressing equipment.

[0019] 3. In this utility model, the sum of the first circumferential distances corresponding to each axial positioning component is greater than the sum of the second circumferential distances corresponding to each circumferential positioning component, ensuring that the axial positioning component will not bear circumferential force.

[0020] 4. In this utility model, the sum of the second axial distances corresponding to each circumferential positioning component is greater than the sum of the first axial distances corresponding to each axial positioning component, ensuring that the circumferential positioning component will not bear axial force.

[0021] 5. The clamping device of this utility model is a clamping ring, and a single clamping ring can achieve radial restriction on all the rollers on the circumference of the roller shaft.

[0022] 6. Since the circumferential force on the roller is often greater than the axial force, this utility model is designed with a double circumferential positioning structure to improve the stability of the roller installation.

[0023] 7. The connecting parts of this utility model are a tie rod and a nut, which are suitable for the quick installation of paired clamping rings. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the assembly structure of the roller and roller shaft of this utility model;

[0025] Figure 2 This utility model relates to Figure 1 Cross-sectional view of AA;

[0026] Figure 3 This utility model relates to Figure 1 Cross-sectional view of BB;

[0027] Figure 4 This is a schematic diagram of the structure of the axial positioning component of this utility model, which is a cylinder.

[0028] The markings in the diagram are: 1-roller shaft, 2-roller blade, 3-axial positioning component, 4-circumferential positioning component, 5-pressing device, 6-connecting component. Detailed Implementation

[0029] The present invention will now be described in detail with reference to the accompanying drawings.

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0031] Example 1

[0032] A roller positioning structure, such as Figure 1-2As shown, the device includes a roller 2 that partially covers the surface of a roller shaft 1. The roller 2 has a first axial positioning groove and a first circumferential positioning groove. The roller shaft 1 has a second axial positioning groove and a second circumferential positioning groove. The first axial positioning groove matches the second axial positioning groove, and the first circumferential positioning groove matches the second circumferential positioning groove. An axial positioning element 3 that restricts the roller 2 from moving axially along the roller shaft 1 is installed between the first axial positioning groove and the second axial positioning groove. A circumferential positioning element 4 that restricts the roller 2 from moving circumferentially along the roller shaft 1 is installed between the first circumferential positioning groove and the second circumferential positioning groove. The middle part of the roller 2 is a rolling working area, and the edge is a non-rolling working area. A pressing device 5 that restricts the roller 2 from moving radially along the roller shaft 1 is installed in the non-rolling working area.

[0033] There is a first circumferential distance between the axial positioning element 3 and the first and second axial positioning grooves, and a second circumferential distance between the circumferential positioning element 4 and the first and second circumferential positioning grooves. The second circumferential distance is greater than or equal to 0, and the sum of the first circumferential distances corresponding to each axial positioning element 3 is greater than the sum of the second circumferential distances corresponding to each circumferential positioning element 4. This ensures that the axial positioning element 3 will not bear circumferential force.

[0034] There is a first axial distance between the axial positioning element 3 and the first axial positioning groove and the second axial positioning groove, and there is a second axial distance between the circumferential positioning element 4 and the first circumferential positioning groove and the second circumferential positioning groove. The first axial distance is greater than or equal to 0, and the sum of the second axial distances corresponding to each circumferential positioning element 4 is greater than the sum of the first axial distances corresponding to each axial positioning element 3. This ensures that the circumferential positioning element 4 will not bear axial force.

[0035] The first circumferential positioning grooves in pairs are disposed opposite to each other at the two ends of the roller 2, and the first axial positioning groove is disposed in the middle of the roller 2.

[0036] The first axial positioning groove is located in the circumferential center of the roller 2, and the axis of the first circumferential positioning groove coincides with that of the first axial positioning groove.

[0037] The clamping device 5 is a clamping ring sleeved on the roller shaft 1. The roller 2 is provided with a first connecting hole for installing the connector 6. The clamping ring is provided with a second connecting hole corresponding to the first connecting hole. The connector 6 passes through the first connecting hole and the second connecting hole and restricts the roller 2 to the clamping ring.

[0038] The axial edge of the roller 2 has a stepped structure. The clamping ring includes a clamping part and an assembly part. The assembly part is sleeved on the roller shaft 1. One end of the clamping part is connected to the assembly part, and the other end is assembled to the stepped structure of the roller 2. The radial height of the clamping ring is less than or equal to the radial height of the roller 2. The assembly part is provided with a third circumferential positioning groove that matches the circumferential positioning component 4. The circumferential positioning component 4 is assembled in the receiving space formed by the cooperation of the first, second, and third circumferential positioning grooves. The circumferential positioning component 4 restricts the circumferential displacement of the clamping ring relative to the roller shaft 1. Since the second circumferential positioning groove is a recess, it can provide axial restriction for the circumferential positioning component 4, preventing the circumferential positioning component 4 from coming out axially. In addition, the third circumferential positioning groove can be set as a through groove for easy installation and processing.

[0039] The mating joint between the clamping part and the stepped structure is a mutually matching inclined structure, which forms an angle with the axis. The inclined structure is an inclined plane or an inclined arc surface. Due to the use of the inclined structure, the clamping part and the stepped structure can be reliably assembled without gaps during mating, that is, ensuring that the clamping part presses the stepped structure tightly through the inclined structure.

[0040] Both sides of the roller 2 in the axial direction are stepped structures, and a pair of clamping rings are assembled opposite each other on both sides of the roller 2 in the axial direction; the second connecting hole is provided in the clamping part.

[0041] The connector 6 includes a tie rod and a nut. The tie rod passes through the second connecting hole of a clamping device 5, the first connecting hole of the roller 2, and the second connecting hole of another clamping device 5 in sequence along the axial direction. Nuts that restrict the clamping device 5 from moving relative to the roller 2 are respectively fitted at both ends of the tie rod.

[0042] Since the circumferential force on roller 2 is often greater than the axial force, this embodiment uses two circumferential positioning elements 4 and one axial positioning element 3. Of course, other numbers of circumferential positioning elements 4 and axial positioning elements 3 can be used depending on requirements and specific working conditions. Secondly, in this embodiment, the axial length of the circumferential positioning element 4 is greater than the axial length of the axial positioning element 3, thus the circumferential positioning element 4 can better withstand larger circumferential forces. In addition, the longer circumferential element can also simultaneously limit the circumferential displacement of the clamping ring, making the overall structure more compact and also protecting the connecting element 6. In this embodiment, the axial positioning element 3 is rectangular; of course, other elements can be used as needed. Figure 4The cylindrical structure shown, or other structures that can limit the axial displacement of the roller 2, should also be considered to fall within the protection scope of this utility model. Here, due to the shape of the axial positioning member 3, the axial distance and circumferential distance between the axial positioning member 3 and the first axial positioning groove and the second axial positioning groove are not unique. The first axial distance corresponding to the axial positioning member 3 mentioned above refers to the shortest axial distance between the axial positioning member 3 and the first axial positioning groove and the second axial positioning groove. The first circumferential distance corresponding to the axial positioning member 3 mentioned above refers to the shortest circumferential distance between the axial positioning member 3 and the first axial positioning groove and the second axial positioning groove.

[0043] Example 2

[0044] A split-structure roller, such as Figure 3 As shown, the system includes a roller shaft 1 and a plurality of roller plates 2 capable of covering the roller shaft 1 circumferentially. Each roller plate 2 is provided with a first axial positioning groove and a first circumferential positioning groove. The roller shaft 1 is provided with a second axial positioning groove and a second circumferential positioning groove. The first axial positioning groove matches the second axial positioning groove, and the first circumferential positioning groove matches the second circumferential positioning groove. An axial positioning element 3 is assembled between the first axial positioning groove and the second axial positioning groove to restrict the roller plate 2 from moving axially along the roller shaft 1. The first circumferential positioning groove and the second circumferential positioning groove are... A circumferential positioning component 4 is installed between the rollers, which can restrict the roller 2 from moving circumferentially along the roller shaft 1; the middle part of the roller 2 is the roller pressing working area and the edge is the non-rolling pressing working area. The non-rolling pressing working area is equipped with a pressing device 5 that can restrict the roller 2 from moving radially along the roller shaft 1. The pressing device 5 is a pressing ring sleeved on the roller shaft 1. The roller 2 is provided with a first connecting hole for installing a connecting component 6. The pressing ring is provided with a second connecting hole corresponding to the first connecting hole. The connecting component 6 passes through the first connecting hole and the second connecting hole and restricts the roller 2 to the pressing ring.

[0045] This document uses specific embodiments to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

[0046] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0047] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A roller positioning structure, comprising rollers that partially cover the roller surface of a roller shaft, characterized in that, The roller is provided with a first axial positioning groove and a first circumferential positioning groove, and the roller shaft is provided with a second axial positioning groove and a second circumferential positioning groove. The first axial positioning groove matches the second axial positioning groove, and the first circumferential positioning groove matches the second circumferential positioning groove. An axial positioning component that can restrict the roller to move axially along the roller shaft is assembled between the first axial positioning groove and the second axial positioning groove, and a circumferential positioning component that can restrict the roller to move circumferentially along the roller shaft is assembled between the first circumferential positioning groove and the second circumferential positioning groove. The middle part of the roller is the rolling working area, and the edge is the non-rolling working area. A pressing device that can restrict the roller to move radially along the roller shaft is assembled in the non-rolling working area.

2. The roller positioning structure as described in claim 1, characterized in that, There is a first circumferential distance between the axial positioning element and the first axial positioning groove and / or the second axial positioning groove, and there is a second circumferential distance between the circumferential positioning element and the first circumferential positioning groove and / or the second circumferential positioning groove. The second circumferential distance is greater than or equal to 0, and the sum of the first circumferential distances corresponding to each axial positioning element is greater than the sum of the second circumferential distances corresponding to each circumferential positioning element.

3. The roller positioning structure as described in claim 1, characterized in that, There is a first axial distance between the axial positioning element and the first axial positioning groove and / or the second axial positioning groove, and there is a second axial distance between the circumferential positioning element and the first circumferential positioning groove and / or the second circumferential positioning groove. The first axial distance is greater than or equal to 0, and the sum of the second axial distances corresponding to each circumferential positioning element is greater than the sum of the first axial distances corresponding to each axial positioning element.

4. The roller positioning structure as described in any one of claims 1-3, characterized in that, The first circumferential positioning grooves in pairs are disposed opposite to each other at the two ends of the roller, and the first axial positioning groove is disposed in the middle of the roller.

5. The roller positioning structure as described in claim 4, characterized in that, The first axial positioning groove is located in the circumferential center of the roller, and the axis of the first circumferential positioning groove coincides with that of the first axial positioning groove.

6. The roller positioning structure as described in claim 1, characterized in that, The clamping device is a clamping ring sleeved on the roller shaft. The roller is provided with a first connecting hole for installing a connector. The clamping ring is provided with a second connecting hole corresponding to the first connecting hole. The connector passes through the first connecting hole and the second connecting hole and restricts the roller to the clamping ring.

7. The roller positioning structure as described in claim 6, characterized in that, The axial edge of the roller has a stepped structure. The clamping ring includes a clamping part and an assembly part. The assembly part is sleeved on the roller shaft. One end of the clamping part is connected to the assembly part, and the other end is assembled to the stepped structure of the roller. The radial height of the clamping ring is less than or equal to the radial height of the roller. The assembly part is provided with a third circumferential positioning groove that matches the circumferential positioning component. The circumferential positioning component is assembled in the receiving space formed by the cooperation of the first circumferential positioning groove, the second circumferential positioning groove, and the third circumferential positioning groove. The circumferential positioning component restricts the circumferential displacement of the clamping ring relative to the roller shaft.

8. The roller positioning structure as described in claim 7, characterized in that, The mating part and the stepped structure are mutually matched inclined structures, and the inclined structure forms an angle with the axis. The inclined structure is an inclined plane or an inclined arc surface.

9. The roller positioning structure as described in claim 7 or 8, characterized in that, Both sides of the roller are stepped structures along the axial direction, and a pair of clamping rings are assembled opposite each other on the two sides of the roller along the axial direction; the second connecting hole is provided in the clamping part; the connecting part includes a pull screw and a nut, the pull screw passes through the second connecting hole of one clamping device, the first connecting hole of the roller, and the second connecting hole of another clamping device in sequence along the axial direction, and the two ends of the pull screw are respectively equipped with nuts that restrict the clamping device from moving relative to the roller along the axial direction.

10. A split-type roller structure, comprising a roller shaft and a plurality of roller plates capable of covering the roller shaft circumferentially, characterized in that, Each of the rollers is provided with a first axial positioning groove and a first circumferential positioning groove, and the roller shaft is provided with a second axial positioning groove and a second circumferential positioning groove. The first axial positioning groove matches the second axial positioning groove, and the first circumferential positioning groove matches the second circumferential positioning groove. An axial positioning component that can restrict the roller to move axially along the roller shaft is assembled between the first axial positioning groove and the second axial positioning groove, and a circumferential positioning component that can restrict the roller to move circumferentially along the roller shaft is assembled between the first circumferential positioning groove and the second circumferential positioning groove. The middle part of the roller is the rolling working area, and the edge is the non-rolling working area. The non-rolling working area is equipped with a clamping device that can restrict the roller to move radially along the roller shaft. The clamping device is a clamping ring sleeved on the roller shaft. The roller is provided with a first connecting hole for installing a connector, and the clamping ring is provided with a second connecting hole corresponding to the first connecting hole. The connector passes through the first connecting hole and the second connecting hole and restricts the roller to the clamping ring.

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