Cigarette making machine and taking-out tool for crank connecting rod bearing of cigarette making machine

Abstract

The utility model relates to a cigarette making machine and a tool for taking out a crank connecting rod bearing of the cigarette making machine. The nut is in shaft connection with the supporting sleeve through the axial load bearing so that the nut and the supporting sleeve can rotate relative to each other. The supporting sleeve is used for being provided with a part located in an inner cavity in the state that the cylindrical roller bearing located in the inner cavity of the connecting rod assembly is taken out, and the connecting sleeve is located between the screw and the connecting rod assembly in the state that the cylindrical roller bearing is taken out. The connecting sleeve is in threaded connection with the screw rod, and the connecting sleeve is used for being connected with the cushion block of the connecting rod assembly through the connecting piece. Therefore, force can be applied to the cushion block of the connecting rod assembly to take out the cylindrical roller bearing in the inner cavity of the connecting rod assembly, the cushion block connected with the connecting piece and the cylindrical roller bearing can be pulled out quickly and accurately, force can be applied to the connecting rod assembly in a matched mode to protect the connecting rod assembly, and damage to the connecting rod assembly is avoided. Therefore, the maintenance cost is saved, and the maintenance efficiency and the maintenance effect of the equipment are remarkably improved.

Description

Technical Field

[0001] This application relates to the field of cigarette equipment, and in particular to cigarette making machines and removal fixtures for cigarette making machine crank connecting rod bearings. Background Technology

[0002] The cutting disc system of a cigarette rolling machine is a structure that cuts cigarette strips into segments. When the machine is running, the cigarette strips pass through the bell mouth of the cutting system at a certain speed, and the crank of the cutting system drives the connecting rod to reciprocate. Taking a certain type of cigarette rolling machine as an example, when the cigarette rolling machine is running at full speed, the inner ring of the bearing in the connecting rod rotates at a maximum speed of 5000 revolutions per minute. Prolonged high-speed operation can easily damage the bearing in the connecting rod, requiring the removal and replacement of the cylindrical roller bearing during maintenance.

[0003] As an example, a linkage assembly 16 of a traditional cigarette machine, such as Figure 1 and Figure 2 As shown, the connecting rod inner cylindrical roller bearing and its installation are as follows: Figure 3 and Figure 4 As shown, a pad 6 is installed at the bottom of the housing of connecting rod 1, and a cylindrical roller bearing 5 is installed above the pad 6. A spacer 4, a skeleton oil seal 3, and a retaining ring 2 are installed above the cylindrical roller bearing 5. However, this structure presents the following technical problems when removing the cylindrical roller bearing from the connecting rod:

[0004] First, the maintenance is time-consuming: the cylindrical roller bearing is pulled out by the bottom pad, and the cylindrical roller bearing and connecting rod have an interference fit, making disassembly using the instantaneous impact force of the pin puller quite difficult. Each replacement of the internal bearing of the connecting rod takes at least an hour.

[0005] Secondly, it easily damages spare parts: Because the connecting rod is an aluminum housing casting with a wall thickness of 2mm, it is not easy to clamp. When it is necessary to pull out the bearing, it cannot be operated with a pin puller if it is not clamped tightly, and it is easy to deform and damage the connecting rod if it is clamped too tightly. As an example, the unit price of a certain domestic connecting rod is currently more than 2,000 yuan, while the price of another imported part is as high as more than 30,000 yuan. Therefore, if it is damaged by accident, it will significantly increase the repair cost. Utility Model Content

[0006] Therefore, it is necessary to provide a tooling for removing a cigarette making machine and a crank connecting rod bearing of the cigarette making machine.

[0007] One embodiment of this application is a tooling for removing the crank connecting rod bearing of a cigarette machine, which includes a screw, a nut, an axial load bearing, a support sleeve, a connecting sleeve, and a connecting piece;

[0008] The screw passes through the nut, the axial load bearing, and the support sleeve, and the screw is screwed to the nut;

[0009] The nut is axially connected to the support sleeve via the axial load bearing, so that the nut and the support sleeve can rotate relative to each other;

[0010] The support sleeve is used to have a portion located in the inner cavity of the connecting rod assembly when the cylindrical roller bearing located in the inner cavity is removed, and the connecting sleeve is located between the screw and the connecting rod assembly when the cylindrical roller bearing is removed.

[0011] The connecting sleeve is screwed to the screw rod, and the connecting sleeve is used to connect to the pad block of the connecting rod assembly through the connecting member.

[0012] The aforementioned fixture for removing the crank connecting rod bearing of the cigarette machine, through the cooperation of a screw, nut, axial load bearing, support sleeve, connecting sleeve, and connecting parts, facilitates the application of force to the pad of the connecting rod assembly to remove the cylindrical roller bearing in the inner cavity of the connecting rod assembly. On the one hand, it facilitates the quick and accurate pulling out of the pad connected to the connecting parts along with the cylindrical roller bearing; on the other hand, it facilitates the application of force to the connecting rod assembly to protect it, thereby avoiding damage to the connecting rod assembly, saving maintenance costs, and significantly improving the maintenance efficiency and effectiveness of the equipment.

[0013] In some embodiments, the removal fixture for the cigarette machine crank connecting rod bearing further includes a heightening pad connected to the support sleeve, and the screw passes through the heightening pad.

[0014] In some embodiments, the riser pad is screwed to the support sleeve; or...

[0015] The heightening pad has a portion located within the support sleeve; or...

[0016] The height-increasing pad has a cylindrical outer surface.

[0017] In some embodiments, the riser has a stepped surface that abuts against the wall of the inner cavity of the connecting rod assembly when the cylindrical roller bearing is removed.

[0018] In some embodiments, both ends of the screw protrude from the nut.

[0019] In some embodiments, the screw passes sequentially through the nut, the axial load bearing, and the support sleeve.

[0020] In some embodiments, the nut has a portion between the axial load bearing and the screw.

[0021] In some embodiments, the nut has an external hexagonal shape; or,

[0022] The connector is an internal hex screw, a Phillips head screw, or a flathead screw.

[0023] In some embodiments, the axial load bearing is a thrust ball bearing.

[0024] In some embodiments, a cigarette rolling machine includes a removal tool for the crank connecting rod bearing of any embodiment. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of a traditional linkage assembly.

[0027] Figure 2 for Figure 1 A schematic diagram of the linkage assembly from another direction.

[0028] Figure 3 for Figure 2 A schematic cross-sectional view of the connecting rod assembly along the AA direction.

[0029] Figure 4 for Figure 3 A magnified schematic diagram of part of the connecting rod assembly shown.

[0030] Figure 5 This is a schematic diagram of an embodiment of the removal tooling for the crank connecting rod bearing of the cigarette machine described in this application.

[0031] Figure 6 for Figure 5 Another schematic diagram of the embodiment shown.

[0032] Figure 7 for Figure 6 A schematic cross-sectional view along the BB direction of the embodiment shown.

[0033] Figure 8 for Figure 5 The illustrated embodiment is shown in the following diagram.

[0034] Figure 9 for Figure 8 Another schematic diagram of the embodiment shown.

[0035] Figure 10 for Figure 9 A cross-sectional view along the CC direction of the embodiment shown.

[0036] Reference numerals: 1. Connecting rod; 2. Retaining ring; 3. Oil seal; 4. Spacer; 5. Cylindrical roller bearing; 6. Spacer block; 7. Screw; 8. Nut; 9. Axial load bearing; 10. Support sleeve; 11. Heightening pad; 12. Connecting sleeve; 13. Connecting piece; 14. Inner cavity; 15. Stepped surface; 16. Connecting rod assembly; 17. Tooling for removing the crank connecting rod bearing of a cigarette machine. Detailed Implementation

[0037] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0038] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is 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 can mean that the first feature is 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.

[0041] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0042] This application discloses a cigarette making machine and a removal tool for the crank connecting rod bearing of the cigarette making machine, which includes some or all of the technical features of the following embodiments; that is, the removal tool for the cigarette making machine and the crank connecting rod bearing of the cigarette making machine includes some or all of the following structures. In one embodiment of this application, a tooling for removing a crank connecting rod bearing of a cigarette machine includes a screw, a nut, an axial load bearing, a support sleeve, a connecting sleeve, and a connector. The screw passes through the nut, the axial load bearing, and the support sleeve, and is screwed to the nut. The nut is axially connected to the support sleeve via the axial load bearing, allowing the nut and the support sleeve to rotate relative to each other. The support sleeve has a portion located within the inner cavity of the connecting rod assembly when the cylindrical roller bearing is removed, and the connecting sleeve is located between the screw and the connecting rod assembly when the cylindrical roller bearing is removed. The connecting sleeve is screwed to the screw and is connected to a pad of the connecting rod assembly via the connector. The aforementioned fixture for removing the crank connecting rod bearing of the cigarette machine, through the cooperation of a screw, nut, axial load bearing, support sleeve, connecting sleeve, and connecting parts, facilitates the application of force to the pad of the connecting rod assembly to remove the cylindrical roller bearing in the inner cavity of the connecting rod assembly. On the one hand, it facilitates the quick and accurate pulling out of the pad connected to the connecting parts along with the cylindrical roller bearing; on the other hand, it facilitates the application of force to the connecting rod assembly to protect it, thereby preventing damage to the connecting rod assembly, saving maintenance costs, and significantly improving the maintenance efficiency and effectiveness of the equipment. The following section will combine... Figures 1 to 10 The removal tooling for the cigarette making machine and the crank connecting rod bearing of the cigarette making machine is described in detail.

[0043] In some embodiments, a removal fixture 17 for a cigarette machine crank connecting rod bearing is shown as follows: Figure 5 and Figure 6 As shown, the joint Figure 7The removal fixture 17 for the crank connecting rod bearing of the cigarette machine includes a screw 7, a nut 8, an axial load bearing 9, a support sleeve 10, a connecting sleeve 12, and a connecting piece 13. The screw 7 passes through the nut 8, the axial load bearing 9, and the support sleeve 10, and the screw 7 is screwed to the nut 8. The nut 8 is axially connected to the support sleeve 10 through the axial load bearing 9, so that the nut 8 and the support sleeve 10 can rotate relative to each other, that is, through the action of the axial load bearing 9, the... The nut 8 is rotatable relative to the support sleeve 10; the support sleeve 10 is configured to have a portion located in the inner cavity 14 of the connecting rod assembly 16 when the cylindrical roller bearing 5 is removed from the inner cavity 14, and the connecting sleeve 12 is located between the screw 7 and the connecting rod assembly 16 when the cylindrical roller bearing 5 is removed; the connecting sleeve 12 is screwed to the screw 7, and the connecting sleeve 12 is configured to be connected to the pad 6 of the connecting rod assembly 16 via the connector 13. This structural design, through the cooperation of screw 7, nut 8, axial load bearing 9, support sleeve 10, connecting sleeve 12 and connecting piece 13, facilitates the application of force to the pad 6 of the connecting rod assembly 16 to remove the cylindrical roller bearing 5 from the inner cavity 14 of the connecting rod assembly 16. On the one hand, it facilitates the quick and accurate pulling out of the pad 6 connected to the connecting piece 13 along with the cylindrical roller bearing 5. On the other hand, it facilitates the application of force to the connecting rod assembly 16 to protect the connecting rod assembly 16, thereby avoiding damage to the connecting rod assembly 16, thus saving maintenance costs and significantly improving the maintenance efficiency and effectiveness of the equipment.

[0044] In some of these embodiments, such as Figure 6 and Figure 7As shown, the removal fixture 17 for the cigarette machine crank connecting rod bearing also includes a heightening pad 11, which is connected to the support sleeve 10, and the screw 7 passes through the heightening pad 11. In some embodiments, the heightening pad 11 is screwed to the support sleeve 10; or, the heightening pad 11 has a portion located within the support sleeve 10; or, the heightening pad 11 has a cylindrical outer surface. This structural design, on the one hand, allows the height of the removal fixture 17 for the cigarette machine crank connecting rod bearing to be adjusted according to different models or sizes of connecting rod assemblies 16 by setting the heightening pad 11, making it more adaptable to the maintenance needs of various cigarette machine crank connecting rods, enhancing the adaptability of the removal fixture 17 for the cigarette machine crank connecting rod bearing, and improving the versatility and flexibility of the removal fixture 17 for the cigarette machine crank connecting rod bearing. On the other hand, the connection between the heightening pad 11 and the support sleeve 10 can be varied, such as screw connection or partial embedding. These connection methods can ensure the stability of the removal fixture 17 of the cigarette machine crank connecting rod bearing during the removal of the cylindrical roller bearing 5, and avoid the removal operation failure or damage to the connecting rod assembly 16 due to the loosening of the removal fixture 17 of the cigarette machine crank connecting rod bearing.

[0045] In some of these embodiments, such as Figure 6 and Figure 7 As shown, the riser pad 11 has a stepped surface 15, which is used to abut against the wall of the inner cavity 14 of the connecting rod assembly 16 when the cylindrical roller bearing 5 is removed. This structural design, on the one hand, allows the stepped surface 15 of the riser pad 11 to tightly abut against the wall of the inner cavity 14 of the connecting rod assembly 16 when the cylindrical roller bearing 5 is removed, thereby providing more even support to the connecting rod assembly 16 during force application, further reducing uneven force distribution during removal, effectively protecting the connecting rod assembly 16 from damage, and extending its service life. On the other hand, the addition of the riser pad 11 allows the removal fixture 17 for the cigarette machine crank connecting rod bearing to be positioned and force applied more precisely, reducing adjustment time and maintenance errors caused by improper operation during maintenance, thus significantly improving maintenance efficiency, shortening equipment downtime, and saving maintenance costs and time for the company.

[0046] For example, such as Figure 8 and Figure 9 As shown, in the operating state, the removal fixture 17 for the cigarette machine crank connecting rod bearing is located above the connecting rod assembly 16. (Combined with...) Figure 10 The riser pad 11 is wider than the connecting rod 1 of the connecting rod assembly 16, so that the connecting rod assembly 16 is partially located in the riser pad 11.

[0047] This structural design, on the one hand, because the riser 11 is wider than the connecting rod 1 of the connecting rod assembly 16, allows part of the connecting rod assembly 16 to be located within the riser 11. Therefore, this design increases the contact and support area between the removal fixture 17 and the connecting rod assembly 16, thereby improving the stability of the removal fixture 17 during use. When removing the cylindrical roller bearing 5, the removal fixture 17 can more firmly support the connecting rod assembly 16, reducing the risk of maintenance failure or equipment damage due to shaking or instability of the removal fixture 17. Furthermore, by placing part of the connecting rod assembly 16 within the riser 11, the force can be more evenly distributed across the entire width of the riser 11, rather than concentrated in a localized area. This uniform force distribution can reduce the deformation or damage to the removal fixture 17 or connecting rod assembly 16 of the cigarette machine crank connecting rod bearing caused by excessive local force, and further improve the stability and durability of the removal fixture 17 of the cigarette machine crank connecting rod bearing.

[0048] On the other hand, since the width of the riser 11 is greater than that of the connecting rod 1, the connecting rod assembly 16 is partially located within the riser 11. This design effectively prevents the connecting rod assembly 16 from sliding or shifting during maintenance. The stability of the connecting rod assembly 16 is crucial when removing the cylindrical roller bearing 5; any sliding or shifting could lead to injury to maintenance personnel or damage to the equipment. Increasing the width of the riser 11 provides more stable support for the connecting rod assembly 16, thereby improving the safety of the maintenance process. Furthermore, the removal fixture 17 for the cigarette machine crank connecting rod bearing is located above the connecting rod assembly 16. This design allows maintenance personnel to more intuitively observe and control the maintenance process. Maintenance personnel can apply force more easily while avoiding operational errors caused by improper positioning of the removal fixture 17, reducing the risks associated with improper operation.

[0049] Furthermore, the removal fixture 17 for the cigarette machine crank connecting rod bearing is located above the connecting rod assembly 16. This design makes the installation and positioning of the removal fixture 17 more convenient and quick. Maintenance personnel can quickly place the removal fixture 17 above the connecting rod assembly 16 and, with the support of the lifting pad 11, quickly adjust its position to ensure proper fit between the removal fixture 17 and the connecting rod assembly 16. This rapid positioning and installation capability significantly improves maintenance efficiency and reduces maintenance time. Moreover, since the lifting pad 11 is wider than the connecting rod 1, and part of the connecting rod assembly 16 is located within the lifting pad 11, this design ensures more precise force application. Maintenance personnel can apply force more evenly to the connecting rod assembly 16 using the removal fixture 17, reducing maintenance failures or equipment damage caused by uneven force application. Precise force application ensures that the cylindrical roller bearing 5 can be smoothly removed from the inner cavity 14 of the connecting rod assembly 16, improving maintenance accuracy.

[0050] On the other hand, the width design of the riser pad 11 can reduce the direct friction between the removal tool 17 of the cigarette machine crank connecting rod bearing and the connecting rod assembly 16. During maintenance, friction between the removal tool 17 of the cigarette machine crank connecting rod bearing and the connecting rod assembly 16 is one of the main causes of wear on the equipment and the removal tool 17 of the cigarette machine crank connecting rod bearing. By increasing the width of the riser pad 11, this direct friction can be effectively reduced, thereby extending the service life of the equipment and the removal tool 17 of the cigarette machine crank connecting rod bearing. Furthermore, since the riser pad 11 can better support the connecting rod assembly 16, damage to the connecting rod assembly 16 caused by instability or improper force application of the removal tool 17 of the cigarette machine crank connecting rod bearing can be reduced during maintenance. This design can effectively protect the connecting rod assembly 16, reduce secondary damage to the equipment during maintenance, and thus reduce maintenance costs. Moreover, the design of the riser pad 11 being wider than the connecting rod 1 allows the removal tool 17 of the cigarette machine crank connecting rod bearing to better adapt to connecting rod assemblies 16 of different sizes. In actual maintenance work, the dimensions of the connecting rod assembly 16 may vary depending on the equipment model or the degree of wear. By increasing the width of the riser 11, the removal fixture 17 for the cigarette machine crank connecting rod bearing can better adapt to these dimensional changes, improving its versatility and applicability. Furthermore, this design makes the removal fixture 17 for the cigarette machine crank connecting rod bearing more flexible and adjustable during use. Maintenance personnel can adjust the position and support method of the riser 11 according to the actual dimensions of the connecting rod assembly 16 and maintenance needs, thereby better completing the maintenance task.

[0051] In summary, the removal fixture 17 for the cigarette machine crank connecting rod bearing is located above the connecting rod assembly 16 in use, and the raising pad 11 is wider than the connecting rod 1 of the connecting rod assembly 16. This design significantly improves the performance and service life of the removal fixture 17 for the cigarette machine crank connecting rod bearing by enhancing the stability of the removal fixture 17, improving the safety of the maintenance process, increasing maintenance efficiency and accuracy, protecting the equipment and the removal fixture 17 for the cigarette machine crank connecting rod bearing, and adapting to connecting rod assemblies of different sizes.

[0052] In some of these embodiments, such as Figure 7 As shown, the axial load bearing 09 is a thrust ball bearing. In other embodiments, the axial load bearing 09 can also be a tapered roller bearing, a thrust cylindrical roller bearing, or an angular contact ball bearing, etc. Taking a thrust ball bearing as an example, a thrust ball bearing is a bearing specifically designed to bear axial loads. Its structural characteristics enable it to efficiently withstand axial forces from the connecting rod assembly 16. During the removal of the cigarette machine crank connecting rod bearing, the screw 7 applies axial force to the axial load bearing 09 through the nut 8. The thrust ball bearing can evenly transmit this force to the support sleeve 10, thereby ensuring the stability and reliability of the entire cigarette machine crank connecting rod bearing removal fixture 17 system. In this embodiment, the use of a thrust ball bearing provides stable support during operation, ensuring a stable connection between the screw 7 and the support sleeve 10. This stable support improves the accuracy of the removal fixture 17 for the cigarette machine crank connecting rod bearing when removing the cylindrical roller bearing 5, and reduces maintenance errors caused by the shaking or instability of the removal fixture 17 for the cigarette machine crank connecting rod bearing.

[0053] Specifically, this structural design, on the one hand, allows the thrust ball bearing to efficiently withstand axial force, thus enabling the removal fixture 17 for the cigarette machine crank connecting rod bearing to complete the force application process more quickly when removing the cylindrical roller bearing 5, reducing maintenance time and improving work efficiency. This efficient force transmission method allows maintenance personnel to complete maintenance tasks more quickly, reducing equipment downtime. On the other hand, the design of the thrust ball bearing effectively reduces friction when bearing axial force. Compared with ordinary bearings, the contact area between the rolling steel balls and the raceway of the thrust ball bearing is smaller, and the rolling friction coefficient is lower. This design significantly reduces bearing wear during operation, extending bearing service life. Furthermore, because the thrust ball bearing effectively reduces wear, the durability of the axial load bearing 09 is significantly improved throughout the entire cigarette machine crank connecting rod bearing removal fixture 17 system. Therefore, during long-term use, the axial load bearing 09 does not need frequent replacement, reducing maintenance costs and workload. Furthermore, the thrust ball bearing can precisely transmit the axial force applied by the screw 7 to the support sleeve 10, ensuring that the entire cigarette machine crank connecting rod bearing removal fixture 17 system is subjected to uniform force during operation. This precise force transmission method effectively avoids the shaking or damage of the cigarette machine crank connecting rod bearing removal fixture 17 caused by uneven force transmission, improving the stability and reliability of the cigarette machine crank connecting rod bearing removal fixture 17, and is therefore particularly suitable for use in the cigarette machine crank connecting rod bearing removal fixture 17. Moreover, due to the high-efficiency transmission and low-wear characteristics of the thrust ball bearing, the risk of failure during use of the cigarette machine crank connecting rod bearing removal fixture 17 is significantly reduced. This not only improves the safety of maintenance work but also reduces maintenance delays caused by failure of the cigarette machine crank connecting rod bearing removal fixture 17. Additionally, the thrust ball bearing can withstand large axial loads, making it suitable for high-load maintenance conditions. During the removal of the crank connecting rod bearing of the cigarette machine, the removal fixture 17 needs to withstand a large axial force. The thrust ball bearing can operate stably under this high load condition, ensuring the smooth completion of the maintenance task. Furthermore, due to the relatively simple structure of the thrust ball bearing, maintenance personnel can more easily inspect and maintain it. For example, regularly checking the bearing's lubrication and wear can help identify and resolve problems promptly, thereby extending the bearing's service life.

[0054] In some of these embodiments, such as Figure 7As shown, both ends of the screw 7 protrude from the nut 8. In some embodiments, the nut 8 has an external hexagonal shape. The protruding design of both ends of the screw 7 and the external hexagonal shape of the nut 8 allow the operator to more accurately control the direction and magnitude of the applied force. During the removal of the cylindrical roller bearing 5, the force can be transmitted more evenly to the connecting rod assembly 16 and the cylindrical roller bearing 5, reducing component damage caused by excessive local force. For example, if the force is concentrated in a local area, it may cause deformation or damage to the support sleeve 10 or the connecting sleeve 12, while even force transmission can effectively avoid this situation, thereby improving the durability of the removal tool 17 for the cigarette machine crank connecting rod bearing. Specifically, this structural design, on the one hand, allows the operator to more easily use tools to rotate or fix the screw, facilitating quick adjustment of the screw's position and the magnitude of the applied force during the removal of the cylindrical roller bearing 5, thus improving maintenance efficiency. On the other hand, the nut 8 has an external hexagonal shape, which makes it easy to tighten or loosen using tools such as wrenches, further improving the operability of the removal fixture 17 for the crank connecting rod bearing of the cigarette machine, thus making the removal fixture 17 for the crank connecting rod bearing of the cigarette machine easy to operate and adjust.

[0055] In some of these embodiments, such as Figure 7As shown, the screw 7 sequentially passes through the nut 8, the axial load bearing 9, and the support sleeve 10. In some embodiments, the nut 8 has a portion between the axial load bearing 9 and the screw 7. This structural design, on the one hand, ensures that the screw 7 passes through the nut 8, the axial load bearing 9, and the support sleeve 10 in a more compact and orderly manner. As the core component of the entire cigarette machine crank connecting rod bearing removal fixture 17, the sequential passage of the screw 7 through each component ensures more uniform and stable force transmission during the application of force, avoiding removal operation failure due to loosening or misalignment between components. On the other hand, the nut 8 having a portion between the axial load bearing 9 and the screw 7 enhances structural stability, better securing the axial load bearing 9 and enabling it to stably withstand axial force during operation, reducing maintenance risks caused by bearing loosening. Furthermore, the protruding design at both ends of the screw 7 and the hexagonal shape of the nut 8 allow operators to more precisely control the direction and magnitude of force when using the tool, thereby improving the removal accuracy and safety. This prevents damage to the connecting rod assembly 16 or the cylindrical roller bearing 5 due to improper operation, enhancing the safety and reliability of the removal process. When removing the cylindrical roller bearing 5, this structural design of the screw 7 and nut 8 ensures uniform force application, reducing wear on the inner wall of the connecting rod assembly 16's cavity 14, protecting the integrity of the connecting rod assembly 16, and extending its service life. Additionally, it makes the assembly and disassembly of the removal fixture 17 for the cigarette machine crank connecting rod bearing more convenient and faster, reducing preparation and finishing work time during maintenance, simplifying the maintenance process, and further improving maintenance efficiency. At the same time, the tighter and more stable connections between components reduce potential failure points during maintenance, lowering maintenance difficulty and costs.

[0056] In some embodiments, the connector 13 is a hex socket head cap screw, a Phillips head screw, or a slotted head screw. Hex socket head cap screws, Phillips head screws, and slotted head screws are common screw types, each compatible with different tools, such as hex wrenches, Phillips screwdrivers, and slotted screwdrivers. As an example, Figure 7The removal fixture 17 for the crank connecting rod bearing of the cigarette machine shown uses an internal hexagon head screw as the connecting part 13. This design allows operators to select the appropriate screw type according to the actual tools available on site, improving operational flexibility. For example, even with limited tool options, operators can quickly find suitable tools for maintenance, reducing maintenance delays caused by tool incompatibility. Furthermore, different screw types are suitable for different operating environments and space conditions. Internal hexagon head screws are generally suitable for space-constrained situations, as their heads can be fully recessed into the connected part, preventing protruding parts from affecting the assembly of other components; Phillips head screws and slotted head screws are more suitable for use in environments with relatively ample operating space. This design allows the removal fixture 17 for the crank connecting rod bearing of the cigarette machine to better adapt to various complex maintenance scenarios, improving its versatility. Moreover, different cigarette machine equipment may have different requirements for the type and specifications of connecting parts. Providing a variety of screw types allows the removal fixture 17 for the crank connecting rod bearing of the cigarette machine to be more compatible with different models of cigarette machine equipment, improving its adaptability. For example, some equipment may require the use of hex socket head cap screws to ensure a tight connection, while in other equipment, Phillips head screws may be more suitable for improving ease of operation. This design allows the removal fixture 17 for the cigarette machine crank connecting rod bearing to be widely used in the maintenance of various cigarette machines, improving its compatibility.

[0057] In some embodiments, a removal fixture 17 for a cigarette machine crank connecting rod bearing is shown as follows: Figures 5 to 7 As shown, it can also be called a device for removing the crank connecting rod bearing of the cigarette cutting system of a cigarette machine, or a device for removing the connecting rod bearing; the removal fixture 17 for the crank connecting rod bearing of the cigarette machine is applied to the cigarette equipment, that is, the cigarette machine, and proposes a fixture structure for removing the bearing, such as the cylindrical roller bearing 5, in the connecting rod 1, which solves the problems of difficult disassembly of the cylindrical roller bearing 5 and easy damage to the connecting rod 1 in the prior art.

[0058] The removal fixture 17 for the crank connecting rod bearing of the cigarette machine includes a screw 7, a nut 8, an axial load bearing 9, a support sleeve 10, a heightening washer 11, a connecting sleeve 12, and a connector 13. The connector 13 is connected to the pad 6 at the bottom of the housing of the connecting rod 1 through a through hole at the bottom of the connecting sleeve 12. The connector 13 is illustrated using an internal hexagon screw as an example, but this does not imply a strict limitation on the connector 13. As an example, the connector 13 used in the removal fixture 17 for the crank connecting rod bearing of the cigarette machine can be other alternative screws such as Phillips head screws or slotted screws.

[0059] As an example, the connecting sleeve 12 is threadedly connected to the screw 7. As an example, the screw 7 is threadedly connected to the nut 8. As an example, the nut 8 and the support sleeve 10 are assembled together by an axial load bearing 9, allowing relative rotation. As an example, the axial load bearing 9 in the illustration is a thrust ball bearing. As an example, the support sleeve 10 and the lifting pad 11 cooperate to provide sufficient space for pulling out the bearing. As an example, the lifting pad 11 contacts the outer circular surface of the upper part of the housing of the connecting rod 1 through its internal stepped surface 15. After assembly, by fixing the screw 7 and rotating the nut 9, the axial thrust between the threads causes the screw 7 to rise, thereby pulling out the pad 6 connected to the screw 13 along with the cylindrical roller bearing 5. This design allows for quick removal of the cylindrical roller bearing 5 from the connecting rod 1, saving maintenance time. The original 60-minute disassembly and assembly of the connecting rod bearing can now be reduced to 20 minutes. During removal, clamping of the connecting rod 1 is avoided, preventing damage to the connecting rod 1 and saving maintenance costs.

[0060] In use, first nut 8 and support sleeve 10 are assembled together via axial load bearing 9 to form a support sleeve assembly. During the removal of the connecting rod bearing, first disassemble the inner retaining ring 2, skeleton oil seal 3, and spacer 4 from the housing of connecting rod 1. Then, lock the connecting sleeve 12 and the stop block 6 at the bottom of the housing of connecting rod 1 via connector 13. Next, screw 7 into the connecting sleeve. Then, place the lifting pad 11 on the outer end of the housing of connecting rod 1, and screw the support sleeve 10 into the screw 7. This allows the lifting pad 11 and support sleeve 10 to form a support, fixing the screw 7. Rotating nut 8 allows the axial thrust generated by the threaded drive to pull out the pad 6 along with the cylindrical roller bearing 5. This threaded drive achieves a large axial thrust with a small torque, making the removal of the connecting rod bearing simple and quick. It also avoids damage to spare parts that might be caused by clamping the connecting rod, reducing maintenance costs and significantly improving equipment maintenance efficiency and effectiveness.

[0061] In some embodiments, the removal fixture 17 for the connecting rod bearing of the cigarette machine includes a screw 7, a nut 8, a thrust ball bearing, a support sleeve 10, a heightening washer 11, a connecting sleeve 12, and an Allen screw. The Allen screw is connected to the pad 6 at the bottom of the housing of the connecting rod 1 through a through hole at the bottom of the connecting sleeve 12. The connecting sleeve 12 and the screw 7 are connected by threads, and the screw 7 and the nut 8 are connected by threads. The nut 8 and the support sleeve 10 are assembled by the thrust ball bearing and can rotate relative to each other. The support sleeve 10 and the heightening washer 11 cooperate to provide sufficient space for pulling out the bearing. The heightening washer 11 contacts the upper outer circular surface of the housing of the connecting rod 1 through an internal stepped surface 15. As an example, the connecting sleeve 12 is a cylindrical sleeve with a hole at the bottom for screw connection. The bottom of the cylindrical sleeve has two support feet for fixing the bottom pad 6, which prevents the pad 6 from rotating with the Allen screw when it is tightened. As an example, the connecting sleeve 12 is threadedly connected to the screw 7, and the connecting sleeve 12, along with the pad 6 and the cylindrical roller bearing 5, can be pulled out together via the screw 7. As an example, the screw 7 is threadedly connected to the nut 8, and the rotation of the nut 8 drives the screw 7 upward. As an example, the nut 8 and the support sleeve 10 are coupled by a thrust ball bearing, allowing them to rotate relative to each other. The thrust ball bearing transmits axial load and avoids dry friction between the nut 8 and the support sleeve. As an example, the support sleeve 10 and the raising pad 11 form a support, providing sufficient space for pulling out the connecting rod bearing, facilitating the removal of the bearing inside the connecting rod.

[0062] In some embodiments, a cigarette rolling machine includes a removal fixture 17 for the crank connecting rod bearing as described in any embodiment. Because of the use of the removal fixture 17, the cigarette rolling machine also possesses the beneficial technical effects of the removal fixture 17, which will not be elaborated further here.

[0063] It should be noted that other embodiments of this application also include a cigarette making machine and a tooling for removing the crank connecting rod bearing of the cigarette making machine, which can be implemented by combining the technical features of the above embodiments.

[0064] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A tooling (17) for removing the crank connecting rod bearing of a cigarette rolling machine, characterized in that, Includes screw (7), nut (8), axial load bearing (9), support sleeve (10), connecting sleeve (12) and connector (13); The screw (7) passes through the nut (8), the axial load bearing (9) and the support sleeve (10), and the screw (7) is screwed to the nut (8); The nut (8) is axially connected to the support sleeve (10) via the axial load bearing (9) so that the nut (8) and the support sleeve (10) can rotate relative to each other; The support sleeve (10) is used to have a portion located in the inner cavity (14) of the connecting rod assembly (16) when the cylindrical roller bearing (5) is removed from the inner cavity (14) of the connecting rod assembly (16), and the connecting sleeve (12) is located between the screw (7) and the connecting rod assembly (16) when the cylindrical roller bearing (5) is removed. The connecting sleeve (12) is screwed to the screw (7), and the connecting sleeve (12) is used to connect to the pad (6) of the connecting rod assembly (16) through the connecting member (13).

2. The removal fixture (17) for the crank connecting rod bearing of the cigarette machine according to claim 1, characterized in that, The removal fixture (17) for the crank connecting rod bearing of the cigarette machine also includes a heightening pad (11), which is connected to the support sleeve (10), and the screw (7) passes through the heightening pad (11).

3. The removal fixture (17) for the crank connecting rod bearing of the cigarette machine according to claim 2, characterized in that, The heightening pad (11) is screwed to the support sleeve (10); or, The heightening pad (11) has a portion located within the support sleeve (10); or, The height-increasing pad (11) has a cylindrical outer surface.

4. The removal fixture (17) for the crank connecting rod bearing of the cigarette machine according to claim 2, characterized in that, The heightening pad (11) has a stepped surface (15) that abuts against the wall of the inner cavity (14) of the connecting rod assembly (16) when the cylindrical roller bearing (5) is removed.

5. The removal fixture (17) for the crank connecting rod bearing of the cigarette machine according to claim 1, characterized in that, Both ends of the screw (7) protrude from the nut (8).

6. The removal fixture (17) for the crank connecting rod bearing of the cigarette machine according to claim 1, characterized in that, The screw (7) passes sequentially through the nut (8), the axial load bearing (9), and the support sleeve (10).

7. The removal fixture (17) for the crank connecting rod bearing of the cigarette machine according to claim 6, characterized in that, The nut (8) has a portion between the axial load bearing (9) and the screw (7).

8. The removal fixture (17) for the crank connecting rod bearing of the cigarette machine according to claim 1, characterized in that, The nut (8) has an external hexagonal shape; or, The connector (13) is an internal hex screw, a Phillips head screw, or a flathead screw.

9. The removal fixture (17) for the crank connecting rod bearing of a cigarette machine according to any one of claims 1 to 8, characterized in that, The axial load bearing (9) is a thrust ball bearing.

10. A cigarette rolling machine, characterized in that, Includes the removal tool (17) for the crank connecting rod bearing of the cigarette machine as described in any one of claims 1 to 9.

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