Bearing removal fixture, cigarette separator and cigarette rolling machine assembly

By designing a bearing removal fixture and using a lead screw hook and handle drive, the needle roller bearing can be removed simply and efficiently, solving the problem of difficult removal of needle roller bearings and improving the working efficiency and lifespan of the cigarette separator and cigarette machine.

CN224268274UActive Publication Date: 2026-05-26CHINA TOBACCO ZHEJIANG IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA TOBACCO ZHEJIANG IND CO LTD
Filing Date
2025-05-06
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In the existing technology, needle roller bearings are difficult to remove from the deep holes of the smoke separator, making it impossible to use ordinary pile pulling tools and potentially damaging the structure of the smoke separator.

Method used

A bearing removal fixture was designed, including a support platform, a lead screw, and a rotating component. The lead screw is hooked to the bottom of the bearing workpiece, and the handle drives the lead screw to move linearly, thus achieving simple removal of the bearing and avoiding wear.

Benefits of technology

It is easy to operate, improves the efficiency of bearing removal, avoids damage to the bearing, extends the service life of the cigarette separator, and improves the working efficiency of the cigarette machine.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224268274U_ABST
    Figure CN224268274U_ABST
Patent Text Reader

Abstract

This utility model belongs to the technical field of cigarette equipment, and discloses a bearing removal fixture, a cigarette separating wheel, and a cigarette machine device. The bearing removal fixture includes a support platform, a lead screw, and a rotating component. The support platform can abut against the outside of the wheel body, and the lead screw passes through the support platform. One end has a hook that can obliquely pass through the inner ring of the bearing workpiece and hook onto the bottom of the bearing workpiece after straightening. The other end of the lead screw has a handle, and the rotating component is located between the support platform and the handle. During the bearing workpiece removal operation, the rotating component is screwed to compress the support platform, and the handle restricts the rotation of the lead screw, allowing the lead screw to move linearly. This method is simple to operate, highly efficient, and avoids damage to the bearing workpiece. The cigarette separating wheel includes the wheel body and the aforementioned bearing removal fixture. The bearing removal fixture can remove the bearing workpiece from the wheel body, is easy to maintain, has a long service life, and is highly efficient. The cigarette machine device includes the aforementioned cigarette separating wheel, which has a long service life and high efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of cigarette equipment technology, and in particular to a bearing removal tool, a cigarette separating wheel, and a cigarette rolling machine device. Background Technology

[0002] Cigarette rolling machines are core equipment in the tobacco industry, responsible for assembling processed tobacco, cigarette paper, and filters into complete cigarettes. Typically, a cigarette rolling machine includes a tobacco feeding system, a rolling system, a cutting system, and a cigarette sorting system. Each system comprises numerous components, such as transmission parts and bearings, resulting in a complex structure. Among these, the cigarette sorting wheel in the cigarette sorting system has the most complex structure. The sorting wheel needs to separate and transport the cut cigarettes. The internal structure of the cigarette sorting wheel contains multiple needle roller bearings. To ensure the continuous and stable operation of the cigarette sorting wheel, these needle roller bearings need to be disassembled and replaced periodically. However, the needle roller bearings are usually installed in pre-set deep holes in the cigarette sorting wheel, and other structures such as drums around the holes interfere with their removal. Ordinary prying tools cannot remove the needle roller bearings from these deep holes, and forcibly pulling them out may damage the cigarette sorting wheel.

[0003] Therefore, there is an urgent need to propose a bearing removal fixture, a cigarette separator, and a cigarette rolling machine device to solve the above problems. Utility Model Content

[0004] The first objective of this invention is to provide a bearing removal tool that is simple to operate, highly efficient, and can prevent damage to the bearing workpiece.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] Bearing removal fixture, including:

[0007] The support platform can abut against the outside of the wheel body and can withstand the squeezing force when the bearing workpiece inside the wheel body is removed during the operation.

[0008] A lead screw is provided at one end of the bearing platform. The hook can pass through the inner ring of the bearing workpiece at an angle and can hook onto the bottom of the bearing workpiece after returning to the center position. The other end of the lead screw is provided with a handle for applying force to drive or restrict the rotation of the lead screw.

[0009] A rotating component is located between the support platform and the handle, and the rotating component is provided with an internal thread, while the lead screw is provided with an external thread. The rotating component and the lead screw are connected through the internal thread and the external thread.

[0010] During the bearing workpiece removal operation, the rotating component is screwed to press the bearing platform, and the screw rotation is restricted by the handle. The screw can move linearly to remove the bearing workpiece.

[0011] As an optional technical solution for bearing removal tooling, the bearing removal tooling also includes a planar bearing, which is located between the rotating component and the bearing platform.

[0012] As an optional technical solution for bearing removal tooling, the rotating component is a nut, and the bearing removal tooling also includes a washer, which is sleeved on the lead screw and located between the nut and the plane bearing.

[0013] As an optional technical solution for bearing removal tooling, the bearing removal tooling also includes a ratchet wrench, which is disposed on the lead screw and located between the handle and the nut. In use, the ratchet wrench is moved and placed on the nut to tighten the nut.

[0014] As an optional technical solution for bearing removal tooling, one end of the handle along its length is movably inserted through the lead screw, and the position of the handle and the lead screw is adjusted to adjust the vertical distance between the force-applying end of the handle and the lead screw.

[0015] As an optional technical solution for bearing removal tooling, the hook part includes an end block, which abuts against the end of the lead screw and is coaxially arranged with the lead screw.

[0016] As an optional technical solution for bearing removal tooling, the bearing platform is a cover, and the side wall edge of the cover can abut against the outside of the wheel body.

[0017] As an optional technical solution for bearing removal tooling, a reinforcing sleeve is provided on the side of the top wall of the cover away from the handle, and the lead screw passes through the top wall of the cover and the reinforcing sleeve in sequence.

[0018] The second objective of this utility model is to provide a smoke-distributing wheel that is easy to maintain, has a long service life, and is highly efficient.

[0019] To achieve this objective, the present invention adopts the following technical solution:

[0020] The smoke separator wheel includes a wheel body and the aforementioned bearing removal fixture, wherein the bearing removal fixture is configured to remove the bearing workpiece inside the wheel body.

[0021] The third objective of this utility model is to provide a cigarette rolling machine device that has a long service life and high working efficiency.

[0022] To achieve this objective, the present invention adopts the following technical solution:

[0023] A cigarette rolling machine device includes the aforementioned cigarette separating wheel, which is used to separate and transport cut cigarettes.

[0024] The beneficial effects of this utility model are:

[0025] This utility model provides a bearing removal fixture comprising a support platform, a lead screw, and a rotating component. The support platform can abut against the outer side of the wheel body and withstand the squeezing force during the removal of the bearing workpiece from the wheel body. The lead screw passes through the support platform, and the hook at one end of the lead screw can obliquely pass through the inner ring of the bearing workpiece, and after returning to its normal position, it can hook onto the bottom of the bearing workpiece to remove it. The other end of the lead screw is equipped with a handle, which can be used to drive the lead screw to rotate or restrict its rotation, making the handle more labor-saving. During the bearing workpiece removal operation, the rotating component is screwed to compress the support platform, and the lead screw rotation is restricted by the handle. The lead screw can move linearly to remove the bearing workpiece, and the lifting action of the lead screw brings the bearing workpiece out. The operation is simple and causes minimal damage to the bearing workpiece. Furthermore, during the bearing workpiece removal operation, the lead screw only moves linearly upward without rotating, and there is no relative displacement with the bearing workpiece, which can avoid wear on the bearing workpiece caused by the rotation of the lead screw and the hook. In addition, when the lead screw needs to be reset after the removal operation is completed in order to carry out the next bearing workpiece removal operation, the rotation of the rotating part is restricted. The handle is turned in the same direction as the rotating part. The handle can drive the lead screw to rotate and move linearly to reset. The lead screw is reset by the handle. The operation is simple, saves time and improves work efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the bearing removal fixture provided in this embodiment of the utility model;

[0027] Figure 2 This is a front view of the bearing removal fixture provided in this embodiment of the utility model;

[0028] Figure 3 This is a cross-sectional view of the bearing removal fixture provided in this embodiment of the utility model.

[0029] In the picture:

[0030] 100. Supporting platform; 110. Reinforcing sleeve; 200. Lead screw; 210. Hook; 220. Handle; 300. Rotating component; 400. Surface bearing; 500. Washer; 600. Ratchet wrench. Detailed Implementation

[0031] 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.

[0032] 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.

[0033] 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.

[0034] In the description of this embodiment, the terms "upper," "lower," "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.

[0035] This embodiment provides a bearing removal tool that is simple to operate, highly efficient, and can avoid damage to the bearing workpiece.

[0036] Specifically, such as Figures 1 to 3As shown, the bearing removal fixture includes a support platform 100, a lead screw 200, and a rotating component 300. The support platform 100 can abut against the outside of the wheel body (not shown in the figure) and can withstand the squeezing force during the removal operation of the bearing workpiece (not shown in the figure) inside the wheel body. In this embodiment, the wheel body refers to the wheel body of the tobacco distribution wheel. The lead screw 200 passes through the support platform 100, specifically it is movable, that is, it can move relative to the support platform 100 in the axial direction. One end of the lead screw 200 is provided with a hook part 210. The hook part 210 can pass obliquely through the inner ring of the bearing workpiece. The hook part 210 can be movably connected to the lead screw 200 and obliquely relative to the axial direction of the lead screw 200, or the hook part 210 and the lead screw 200 can both obliquely pass through the inner ring of the bearing workpiece. After the hook part 210 returns to its normal position, it can hook onto the bottom of the bearing workpiece, similar to the working principle of a hook, to hook the bearing workpiece out from the deep hole of the wheel body. The shape of the hook portion 210 is not limited, but in order to hook the bearing workpiece, the radial dimension (perpendicular to the axial direction of the lead screw 200) of the hook portion 210 needs to be larger than the radial dimension of the inner ring of the bearing workpiece. Of course, the radial dimension of the hook portion 210 should not be too large, otherwise the bearing workpiece cannot be removed from the deep hole; that is, the radial dimension of the hook portion 210 should be smaller than the radial dimension of the outer ring of the bearing workpiece (the radial dimension of the deep hole). Furthermore, when the lead screw 200 is fixedly connected to the hook portion 210, both the lead screw 200 and the hook portion 210 need to be simultaneously inclined through the inner ring of the bearing workpiece. If the radial dimension of the hook portion 210 is too large, it will be difficult to operate the hook portion 210 through the inner ring of the bearing workpiece. Typically, the radial dimension of the hook portion 210 is 0.5-1 mm larger than the radial dimension of the inner ring of the bearing workpiece; for example, it can be 0.5 mm, 0.7 mm, or 1 mm. The other end of the lead screw 200 is provided with a handle 220 for applying force to drive or restrict the rotation of the lead screw 200. The rotating component 300 is located between the support platform 100 and the handle 220. The rotating component 300 has an internal thread, and the lead screw 200 has an external thread. The rotating component 300 and the lead screw 200 are connected via the internal and external threads, allowing relative rotation and linear movement between them. During the bearing workpiece removal operation, the rotating component 300 is screwed to press against the support platform 100, and the handle 220 restricts the rotation of the lead screw 200, allowing the lead screw 200 to move linearly and remove the bearing workpiece.

[0037] Based on the above design, the support platform 100 can abut against the outer side of the wheel body and can withstand the squeezing force when the bearing workpiece inside the wheel body is removed; the lead screw 200 passes through the support platform 100, and the hook part 210 at one end of the lead screw 200 can pass through the inner ring of the bearing workpiece at an angle, and after returning to the center, it can hook onto the bottom of the bearing workpiece to remove it; the other end of the lead screw 200 is provided with a handle 220, and applying force to the handle 220 can drive the lead screw 200 to rotate or restrict the rotation of the lead screw 200, and the handle 220 can save more effort. During the bearing workpiece removal operation, the rotating component 300 is turned to press against the support platform 100, and the rotation of the lead screw 200 is restricted by the handle 220. The lead screw 200 can move linearly to remove the bearing workpiece. The bearing workpiece is lifted out by the lead screw 200, which is simple to operate and causes minimal damage to the bearing workpiece. Furthermore, during the bearing workpiece removal operation, the lead screw 200 only moves linearly upward without rotating, and there is no relative displacement with the bearing workpiece, which can avoid wear on the bearing workpiece caused by the rotation of the lead screw 200 and the hook part 210. In addition, when the lead screw needs to be reset after the removal operation is completed to perform the next bearing workpiece removal operation, the rotation of the rotating component 300 is restricted, and the handle 220 is turned in the same direction as the rotating component 300. The handle 220 can drive the lead screw 200 to rotate and move linearly to reset. The lead screw 200 is reset by the handle 220, which is simple to operate, saves time, and improves work efficiency.

[0038] Furthermore, the bearing removal fixture also includes a flat bearing 400, which is located between the rotating component 300 and the support platform 100. The flat bearing 400 can convert the sliding friction between the support platform 100 and the rotating component 300 into rolling friction, thereby reducing the wear and frictional heat of the support platform 100 and the rotating component 300 and extending the service life of the bearing removal fixture.

[0039] In this embodiment, the nut is a hexagonal nut.

[0040] Furthermore, the rotating component 300 is a nut. The nut has a simple structure and low cost, and it is easy to mate with the lead screw 200. However, the nut is relatively small in size, and the contact surface with the plane bearing 400 is small. When subjected to squeezing force, the pressure is too high and it is easily damaged. Therefore, the bearing removal tooling also includes a washer 500. The washer 500 is sleeved on the lead screw 200 and located between the nut and the plane bearing 400. The washer 500 squeezes against the plane bearing 400 to protect the plane bearing 400 and the nut.

[0041] Furthermore, the bearing removal fixture also includes a ratchet wrench 600, which is fitted onto the lead screw 200 and positioned between the handle 220 and the nut. In use, the ratchet wrench 600 is moved and fitted onto the nut to tighten or loosen it. Turning the nut using the ratchet wrench 600 requires less effort. Moreover, the ratchet wrench 600 features one-way locking and rapid continuous rotation, making it more convenient to use than a regular wrench.

[0042] Optionally, one end of the handle 220 along its length is movably inserted into the lead screw 200, allowing adjustment of the positions of the handle 220 and the lead screw 200. This adjusts the vertical distance between the force-applying end of the handle 220 and the lead screw 200, thus adjusting the lever arm for turning the handle 220 when driving or restricting the rotation of the lead screw 200. For example, if a large torque is required to turn the handle 220, the handle 220 can be pulled out to increase the lever arm, making it easier to operate.

[0043] Optionally, the hook part 210 includes an end block that abuts against the end of the lead screw 200, so that the upper end face of the end block hooks the bottom of the bearing workpiece. The end block has a simple structure and strong load-bearing capacity. Moreover, the end block and the lead screw 200 are coaxially arranged, so that the bearing workpiece is more stable when hooking and taking out the bearing workpiece, which can avoid the bearing workpiece tilting and bumping against the hole wall of the deep hole.

[0044] Optionally, the support platform 100 is a cover, and the edge of the side wall of the cover can abut against the outside of the wheel body. Compared with the solid support platform 100, the cover-shaped support platform 100 saves materials, is lightweight, and is easy to carry.

[0045] Furthermore, a reinforcing sleeve 110 is provided on the side of the top wall of the cover away from the handle 220. The lead screw 200 passes through the top wall of the cover and the reinforcing sleeve 110 in sequence to compensate for the small contact area between the thin top wall of the cover and the lead screw 200, which makes the lead screw 200 unstable. The reinforcing sleeve 110 is provided to improve the stability of the lead screw 200.

[0046] This embodiment also provides a smoke-dividing wheel, which is convenient to maintain, has a long service life and high working efficiency.

[0047] Specifically, the smoke separator includes a wheel body and the aforementioned bearing removal fixture, which is configured to remove the bearing components from the wheel body. The bearing removal fixture serves as a dedicated tool for the wheel body of the smoke separator, facilitating its maintenance. Furthermore, due to its simple operation, high efficiency, and ability to prevent damage to the bearing components, the smoke separator boasts high efficiency and a long service life.

[0048] This embodiment also provides a cigarette rolling machine device, which has a long service life and high working efficiency.

[0049] Specifically, the cigarette rolling machine includes the aforementioned cigarette separating wheel, which is used to separate and transport the cut cigarettes. The cigarette separating wheel has high working efficiency and long service life, thus the cigarette rolling machine has a long service life and high working efficiency.

[0050] 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 bearing extraction tool, characterized in that, include: The support platform (100) is able to abut against the outside of the wheel body and withstand the squeezing force when the bearing workpiece inside the wheel body is removed during the operation. A lead screw (200) is provided at one end of the bearing platform (100). The hook (210) can pass through the inner ring of the bearing workpiece at an angle and can hook onto the bottom of the bearing workpiece after returning to the center. The other end of the lead screw (200) is provided with a handle (220) for applying force to drive or restrict the rotation of the lead screw (200). A rotating component (300) is located between the support platform (100) and the handle (220), and the rotating component (300) is provided with an internal thread, and the lead screw (200) is provided with an external thread. The rotating component (300) and the lead screw (200) are connected through the internal thread and the external thread. During the bearing workpiece removal operation, the rotating component (300) is screwed to press the bearing platform (100), and the screw (200) is restricted from rotating by the handle (220). The screw (200) can move linearly to remove the bearing workpiece.

2. The bearing extraction tool of claim 1, wherein, The bearing removal fixture also includes a planar bearing (400), which is located between the rotating member (300) and the support platform (100).

3. The bearing extraction tool of claim 2, wherein, The rotating component (300) is a nut, and the bearing removal fixture also includes a washer (500), which is sleeved on the lead screw (200) and located between the nut and the plane bearing (400).

4. The bearing extraction tool of claim 3, wherein, The bearing removal tool also includes a ratchet wrench (600), which is sleeved on the lead screw (200) and located between the handle (220) and the nut. In use, the ratchet wrench (600) is moved and sleeved on the nut to tighten the nut.

5. The bearing extraction tool of any of claims 1-4, wherein, One end of the handle (220) along its length is movably inserted through the lead screw (200). Adjusting the position of the handle (220) and the lead screw (200) adjusts the vertical distance between the force-applying end of the handle (220) and the lead screw (200).

6. The bearing extraction tool of any of claims 1-4, wherein, The hook part (210) includes an end block that abuts against the end of the lead screw (200) and is coaxially arranged with the lead screw (200).

7. The bearing extraction tool of any of claims 1-4, wherein, The support platform (100) is a cover, and the edge of the side wall of the cover can abut against the outside of the wheel body.

8. The bearing extraction tool of claim 7, wherein, A reinforcing sleeve (110) is provided on the side of the top wall of the cover away from the handle (220), and the lead screw (200) passes through the top wall of the cover and the reinforcing sleeve (110) in sequence.

9. A cigarette divider wheel characterised in that, The wheel body includes a bearing removal tool as described in any one of claims 1-8, the bearing removal tool being configured to remove a bearing workpiece from the wheel body.

10. A cigarette making machine apparatus, characterized by, Includes the cigarette separator as described in claim 9, the cigarette separator being used to separate and transport cut cigarette sticks.