Dismounting device for paper guide roller bearing

Abstract

The utility model belongs to the technical field of range hood equipment, and discloses a dismounting device for a paper guide roller bearing. The dismounting device comprises a clamping assembly and a driving assembly, the clamping assembly comprises at least two clamping pieces, the at least two clamping pieces can clamp the roller, the driving assembly is in threaded connection with the clamping assembly, one end of the driving assembly can be attached to and abut against a wall plate of the paper guide roller, and the driving assembly can rotate to drive the clamping assembly to move in the axial direction of the paper guide roller. According to the dismounting device, through cooperation of the clamping assembly and the driving assembly, the dismounting difficulty in a traditional dismounting method is avoided; the problem of part damage caused by forced disassembly is avoided; the dismounting time can be greatly shortened; the driving assembly can completely convert thrust into axial movement of the clamping assembly when rotating through the attaching wall plate, direction deviation caused by deviation of the driving assembly is avoided, it is ensured that the disassembling direction is strictly in the axis direction of the paper guide roller, and lateral extrusion damage to a roller wheel, a roller shaft or an end cover is reduced.

Description

Technical Field

[0001] This utility model relates to the field of tobacco machine equipment technology, and in particular to a disassembly device for a paper guide roller bearing. Background Technology

[0002] In the production of cigarettes, a large supply of cigarette paper, tipping paper, and forming paper for filter rods is required. Therefore, paper tape supply is the core process of cigarette making equipment. Among them, guide rollers are widely used in cigarette making equipment due to their ability to change the paper tape path and stabilize the paper tape tension.

[0003] During the operation of the cigarette machine, the guide roller is constantly in contact with the running paper belt, generating relative friction. This causes paper dust, paper scraps, and other residues to accumulate on the guide roller. When some of these residues enter the inside of the guide roller, they can easily damage the guide roller bearings, make the guide roller rotate inflexibly, and further cause paper belt breakage, equipment malfunctions, and downtime, affecting equipment efficiency. Therefore, timely bearing replacement is necessary. However, due to the small clearance between the roller, roller shaft, and end cap of the guide roller, and the frequent occurrence of bearing jamming when the bearing is damaged, it is inconvenient for maintenance personnel to disassemble the bearing, resulting in long maintenance times. Forcibly disassembling the bearing also carries the risk of damaging parts, causing wear on the roller surface, and reducing the fit between the roller, roller shaft, and end cap, thus affecting the service life of the guide roller.

[0004] Therefore, there is a need to provide a disassembly device for the paper guide roller bearing to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a disassembly device for the bearing of a paper guide roller, which can easily disassemble the bearing of the paper guide roller, avoid damage to parts caused by forced disassembly, and has high disassembly efficiency and good reliability.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A disassembly device for a paper guide roller bearing, the paper guide roller including a roller shaft, a bearing and a roller wheel, comprising:

[0008] A clamping assembly, the clamping assembly including at least two clamping members, the at least two clamping members being capable of clamping the roller;

[0009] A drive assembly is threadedly connected to the clamping assembly. One end of the drive assembly can abut against the wall plate of the paper guide roller. Rotation of the drive assembly can drive the clamping assembly to move axially along the paper guide roller.

[0010] Preferably, the driving component includes:

[0011] The drive rod is threadedly connected to the clamping assembly;

[0012] An abutment sleeve is detachably disposed at one end of the drive rod. The abutment sleeve has an abutment surface that can fit and abut against the wall panel.

[0013] Preferably, the material hardness of the contact surface is less than that of the wall panel.

[0014] Preferably, the drive assembly further includes a first locking member that passes through the abutment sleeve and the drive rod to securely connect the two.

[0015] Preferably, the first locking element is a bolt, and the abutment sleeve has a countersunk hole, the head of the bolt being accommodated in the countersunk hole.

[0016] Preferably, the drive component further includes:

[0017] An operating part is disposed at the end of the drive rod away from the abutment sleeve, and the outer diameter of the operating part is larger than the outer diameter of the drive rod.

[0018] Preferably, the clamping member has a groove, and two clamping members are joined together so that the two grooves form a clamping groove, and the roller is clamped in the clamping groove.

[0019] Preferably, the clamping assembly further includes a second locking member, the clamping member including a fixing portion, the second locking member passing through the fixing portions of the two clamping members to securely connect the two clamping members.

[0020] Preferably, the groove wall can fit and abut against the outer peripheral wall of the roller, and the sum of the arc lengths of the two groove walls is less than the outer peripheral circumference of the roller.

[0021] Preferably, there are multiple drive components, and each clamping member is threadedly connected to one of the drive components.

[0022] The beneficial effects of this utility model are:

[0023] This disassembly device for guide roller bearings includes a clamping assembly and a drive assembly. The clamping assembly includes at least two clamping members capable of clamping the roller. The drive assembly is threadedly connected to the clamping assembly, and one end of the drive assembly abuts against the wall plate of the guide roller. Rotation of the drive assembly causes the clamping assembly to move axially along the guide roller. When using this disassembly device to disassemble the bearing on the guide roller, the roller of the guide roller is first clamped by at least two clamping members in the clamping assembly. The drive assembly is threadedly connected to the clamping assembly, and one end of the drive assembly abuts against the wall plate of the guide roller, giving the disassembly device two fulcrums for more stable fixation on the guide roller. By rotating the drive assembly, the clamping assembly can move axially along the guide roller, applying an axial force to the roller, causing the roller to move axially along the guide roller to disengage from the roller shaft, thereby removing the bearing from between the roller and the roller shaft.

[0024] This disassembly device, through the cooperation of a clamping assembly and a drive assembly, allows for effective separation of the roller from the roller shaft simply by clamping the roller with the clamping assembly and rotating the drive assembly. This avoids the disassembly difficulties caused by small fit clearances and bearing jamming in traditional disassembly methods. Using this device to disassemble the bearings on the paper guide roller avoids damage to parts caused by forced disassembly, helps maintain the fit and performance of the paper guide roller, and extends its service life. This disassembly device significantly shortens disassembly time and improves disassembly efficiency. When the drive assembly generates axial thrust on the clamping assembly through threaded rotation, it can use the wall plate as a fixed fulcrum to provide a reaction force, enabling the clamping assembly to move axially. Furthermore, by adhering to the wall plate, the drive assembly can completely convert the thrust into the axial movement of the clamping assembly during rotation, preventing directional deviation caused by drive assembly offset and ensuring that the disassembly direction is strictly along the axis of the paper guide roller, reducing lateral compression damage to the roller, roller shaft, or end cap. Attached Figure Description

[0025] Figure 1 This is a cross-sectional view of the paper guide roller provided by this utility model;

[0026] Figure 2 This is a schematic diagram of the disassembly device for the paper guide roller bearing, the paper guide roller, and the wall surface provided by this utility model;

[0027] Figure 3 This is a schematic diagram of the disassembly device for the paper guide roller bearing provided by this utility model;

[0028] Figure 4 This is a schematic diagram of the abutment sleeve provided by this utility model;

[0029] Figure 5 This is a schematic diagram of the clamping component provided by this utility model.

[0030] In the picture:

[0031] 100. Guide roller; 1001. Roller shaft; 1002. Roller wheel; 1003. Bearing; 1004. End cap; 200. Wall panel;

[0032] 1. Clamping assembly; 11. Clamping element; 111. Groove; 12. Second locking element; 13. Clamping slot;

[0033] 2. Drive assembly; 21. Drive rod; 22. Abutment sleeve; 221. Abutment surface; 222. Countersunk hole; 23. Operating part; 24. First locking element. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this embodiment, the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0038] like Figure 1 As shown, the paper guide roller 100 includes a roller shaft 1001, a bearing 1003, a roller 1002, and an end cap 1004. The roller 1002 is rotatably mounted on the roller shaft 1001, and a bearing 1003 is provided between the two to support the roller 1002 and reduce rotational friction. The end cap 1004 covers one side of the roller 1002. When the bearing 1003 needs to be replaced, the fit clearance between the roller 1002, roller shaft 1001, and end cover 1004 of the paper guide roller 100 is small. When the bearing 1003 is damaged, the bearing 1003 often jams with the roller 1002 and roller shaft 1001. This makes it inconvenient for maintenance personnel to disassemble the bearing 1003 and the maintenance time is long. If it is forcibly disassembled, there is a risk of damaging the parts, causing wear on the surface of the roller 1002 and a reduction in the fit between the roller 1002, roller shaft 1001, and end cover 1004, which affects the service life of the paper guide roller 100.

[0039] To solve the above problems, such as Figures 2-5 As shown, this embodiment provides a disassembly device for a paper guide roller bearing (hereinafter referred to as the disassembly device). The disassembly device includes a clamping assembly 1 and a driving assembly 2. The clamping assembly 1 includes at least two clamping members 11, which can clamp the roller 1002. The driving assembly 2 is threadedly connected to the clamping assembly 1. One end of the driving assembly 2 can fit against the wall plate 200 of the paper guide roller 100. The rotation of the driving assembly 2 can drive the clamping assembly 1 to move along the axial direction of the paper guide roller 100. When using this disassembly device to disassemble the bearing 1003 on the guide roller 100, the roller 1002 of the guide roller 100 is first clamped by at least two clamping members 11 in the clamping assembly 1. The drive assembly 2 is threadedly connected to the clamping assembly 1, and one end of the drive assembly 2 is in contact with the wall plate 200 of the guide roller 100, so that the disassembly device has two fulcrums and can be more stably fixed on the guide roller 100. By rotating the drive assembly 2, the clamping assembly 1 can be moved along the axial direction of the guide roller 100. At this time, the clamping assembly 1 will apply an axial force to the roller 1002, so that the roller 1002 moves along the axial direction of the guide roller 100 to disengage from the roller shaft 1001, thereby disassembling the bearing 1003 from the roller 1002 and the roller shaft 1001.

[0040] This disassembly device, through the cooperation of clamping component 1 and driving component 2, allows for the effective separation of roller 1002 from roller shaft 1001 simply by clamping roller 1002 with clamping component 1 and rotating driving component 2. This avoids the disassembly difficulties caused by small fit clearances and bearing 1003 jamming in traditional disassembly methods. Using this disassembly device to disassemble bearing 1003 on the paper guide roller 100 avoids damage to parts caused by forced disassembly, helps maintain the fit and performance of the paper guide roller 100, and extends its service life. This disassembly device can greatly... This significantly shortens disassembly time and improves disassembly efficiency. When the drive assembly 2 rotates through the thread to generate axial thrust on the clamping assembly 1, it can use the wall plate 200 as a fixed fulcrum to provide a reaction force so that the clamping assembly 1 can move axially. Furthermore, by adhering to the wall plate 200, the drive assembly 2 can completely convert the thrust into the axial movement of the clamping assembly 1 when rotating, avoiding directional deviation caused by the offset of the drive assembly 2. This ensures that the disassembly direction is strictly along the axial direction of the guide roller 100, reducing lateral squeezing damage to the roller 1002, roller shaft 1001, or end cap 1004.

[0041] Specifically, such as Figure 2 , Figure 3 As shown, there are multiple drive components 2, and each clamping member 11 is threadedly connected to one drive component 2. When disassembling the paper guide roller 100, the multiple drive components 2 rotate synchronously, thereby enabling each clamping member 11 of the clamping assembly 1 to move synchronously along the axial direction of the paper guide roller 100. The coordinated driving of multiple sets of drive components 2 can make the clamping members 11 of the clamping assembly 1 bear uniform force and provide greater axial force, significantly improving disassembly capability.

[0042] Specifically, such as Figures 2-5 As shown, the drive assembly 2 includes a drive rod 21 and an abutment sleeve 22. The drive rod 21 is threadedly connected to the clamping assembly 1. The abutment sleeve 22 is detachably disposed at one end of the drive rod 21 and has an abutment surface 221 that can abut against the wall panel 200. The drive rod 21 is responsible for converting the rotational motion into axial tension through threaded transmission, so that the clamping assembly 1 moves axially along the guide roller 100. The abutment sleeve 22 bears the direct contact friction with the wall panel 200, avoiding wear at the end of the drive rod 21 due to long-term contact, thus extending the life of the drive rod 21. When the drive assembly 2 wears due to contact friction with the wall panel 200, only the abutment sleeve 22 needs to be replaced, without replacing the entire drive assembly 2, saving maintenance costs. Specifically, the drive rod 21 is threadedly connected to the clamping member 11.

[0043] In this embodiment, the material hardness of the abutment surface 221 is less than that of the wall panel 200. When the drive assembly 2 rotates, friction occurs between the abutment surface 221 of the abutment sleeve 22 and the wall panel 200. The higher material hardness of the wall panel 200 prevents scratches and protects it. The abutment sleeve 22, being a vulnerable part, has a much lower repair or replacement cost than the wall panel 200. By having the abutment sleeve 22 bear the wear, overall maintenance costs can be significantly reduced. It should be noted that the material hardness of the abutment sleeve 22 can be entirely less than that of the wall panel 200, or the abutment sleeve 22 can be divided into two parts, such that the initial material hardness of the abutment surface 221 is less than that of the wall panel 200, while the material hardness of other parts of the abutment sleeve 22 is not limited. The specific implementation depends on actual needs, as long as the material hardness of the abutment surface 221 is less than that of the wall panel 200.

[0044] Specifically, such as Figure 3 As shown, the drive assembly 2 also includes a first locking member 24, which passes through the abutment sleeve 22 and the drive rod 21 to fix them together. Fixing the abutment sleeve 22 and the drive rod 21 together with the first locking member 24 makes the drive assembly 2 more stable during operation. Compared with other connection methods, such as welding and riveting, the installation and disassembly process is simpler and faster. When the abutment sleeve 22 needs to be replaced, only the first locking member 24 needs to be removed, reducing maintenance costs and time.

[0045] In this embodiment, as Figure 3 , Figure 4 As shown, the first locking element 24 is a bolt, and the abutment sleeve 22 has a countersunk hole 222, in which the head of the bolt is accommodated. Using bolts to fix the abutment sleeve 22 and the drive rod 21 provides high strength and stability, and is simple and quick to assemble and disassemble; simply tightening the bolt is sufficient to easily fix or remove the abutment sleeve 22. The countersunk hole 222 allows the bolt head to be recessed into the abutment sleeve 22, preventing the bolt head from protruding beyond the abutment sleeve 22, and thus preventing interference with the contact between the abutment surface 221 and the wall panel 200.

[0046] Specifically, such as Figure 2 , Figure 3 As shown, the drive assembly 2 also includes an operating part 23, which is located at the end of the drive rod 21 away from the abutment sleeve 22. The outer diameter of the operating part 23 is larger than the outer diameter of the drive rod 21. When rotating the drive assembly 2, because the outer diameter of the operating part 23 is larger, the operator can more easily rotate the drive rod 21 by holding or clamping the operating part 23. The operating part 23 may be hexagonal.

[0047] In this embodiment, an anti-slip layer is provided on the outer periphery of the operating part 23. This anti-slip layer prevents slippage during operation and ensures stable force application. Specifically, the anti-slip layer can be formed by providing a rubber layer on the outer periphery of the operating part 23, by applying an anti-slip coating to the outer periphery of the operating part 23, or by creating anti-slip textures or knurling on the outer periphery of the operating part 23. The specific implementation method is not limited in this embodiment.

[0048] Specifically, such as Figure 3 , Figure 5 As shown, the clamping member 11 has a groove 111. Two clamping members 11 are spliced ​​together so that the two grooves 111 form a clamping groove 13, and the roller 1002 is clamped in the clamping groove 13. The groove 111 allows the spliced ​​clamping member 11 to clamp the roller 1002 more stably, preventing the roller 1002 from loosening or shifting during movement.

[0049] In this embodiment, the groove wall of the groove 111 can fit against the outer peripheral wall of the roller 1002, and the sum of the arc lengths of the groove walls of the two grooves 111 is less than the outer peripheral circumference of the roller 1002. By making the groove wall of the groove 111 fit against the outer peripheral wall of the roller 1002, the clamping force from the clamping member 11 on the roller 1002 radially is distributed more evenly, which can reduce the probability of plastic deformation of the roller 1002 due to uneven force when disassembling the roller 1002; by making the sum of the arc lengths of the groove walls of the two grooves 111 less than the outer peripheral circumference of the roller 1002, the two clamping members 11 can effectively clamp the roller 1002 after splicing, while maintaining a certain gap. The gap allows the two clamping members 11 to maintain a tendency to move closer to each other to clamp the roller 1002. If the arc length of the groove 111 is too long, the spliced ​​clamping groove 13 will form a complete circle that perfectly matches the outer diameter of the roller 1002. This will cause the outer edges of the two clamping members 11 to abut against each other, resulting in a limited clamping force and making it impossible to guarantee stable clamping of the roller 1002. Therefore, by controlling the arc length of the groove 111, it is ensured that the clamping members 11 can stably clamp the roller 1002.

[0050] Specifically, such as Figure 2 , Figure 3 As shown, the clamping assembly 1 also includes a second locking member 12. The clamping member 11 includes a fixing part, and the second locking member 12 passes through the fixing parts of the two clamping members 11 to fix the two clamping members 11 together. The two clamping members 11 are fixedly connected by the second locking member 12 so that the two clamping members 11 are spliced ​​together to clamp the roller 1002, ensuring the reliability of clamping by the clamping members 11 and the safety of the disassembly process.

[0051] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A disassembly device for a paper guide roller bearing, the paper guide roller (100) comprising a roller shaft (1001), a bearing (1003), and a roller (1002), characterized in that, include: A clamping assembly (1) comprising at least two clamping members (11) capable of clamping the roller (1002); The drive assembly (2) is threadedly connected to the clamping assembly (1). One end of the drive assembly (2) can fit against the wall plate (200) of the guide roller (100). The rotation of the drive assembly (2) can drive the clamping assembly (1) to move along the axial direction of the guide roller (100).

2. The disassembly device for the paper guide roller bearing according to claim 1, characterized in that, The driving component (2) includes: The drive rod (21) is threadedly connected to the clamping assembly (1); Abutting sleeve (22) is detachably disposed at one end of the drive rod (21). The abutting sleeve (22) has an abutting surface (221) that can fit and abut against the wall panel (200).

3. The disassembly device for the paper guide roller bearing according to claim 2, characterized in that, The material hardness of the contact surface (221) is less than that of the wall panel (200).

4. The disassembly device for the paper guide roller bearing according to claim 2, characterized in that, The drive assembly (2) further includes a first locking member (24) that passes through the abutment sleeve (22) and the drive rod (21) to securely connect the two.

5. The disassembly device for the paper guide roller bearing according to claim 4, characterized in that, The first locking member (24) is a bolt, and the abutment sleeve (22) has a countersunk hole (222), the head of the bolt is accommodated in the countersunk hole (222).

6. The disassembly device for the paper guide roller bearing according to claim 2, characterized in that, The driving component (2) also includes: An operating part (23) is provided at one end of the drive rod (21) away from the abutment sleeve (22), and the outer diameter of the operating part (23) is larger than the outer diameter of the drive rod (21).

7. The disassembly device for the paper guide roller bearing according to claim 1, characterized in that, The clamping member (11) has a groove (111) and two clamping members (11) are spliced ​​together so that the two grooves (111) form a clamping groove (13) and the roller (1002) is clamped in the clamping groove (13).

8. The disassembly device for the paper guide roller bearing according to claim 7, characterized in that, The clamping assembly (1) further includes a second locking member (12), and the clamping member (11) includes a fixing part. The second locking member (12) passes through the fixing parts of the two clamping members (11) to fix the two clamping members (11) together.

9. The disassembly device for the paper guide roller bearing according to claim 7, characterized in that, The groove wall of the groove (111) can fit and abut against the outer peripheral wall of the roller (1002), and the sum of the arc lengths of the groove walls of the two grooves (111) is less than the outer peripheral circumference of the roller (1002).

10. The disassembly device for the paper guide roller bearing according to claim 1, characterized in that, The number of drive components (2) is multiple, and each clamping member (11) is threadedly connected to one of the drive components (2).

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