Dismounting device for bearing sleeve of tobacco shred throwing roller

Abstract

The utility model provides a shred throwing roller bearing sleeve dismounting device which comprises a sleeve, a countersunk bolt and an ejection lead screw, the front end of the sleeve is provided with a plurality of slots, the bottom of the sleeve is provided with a screw hole, and the countersunk bolt is in threaded connection with the sleeve; the countersunk bolt is of a hollow structure, an internal thread is arranged on the hollow structure in the countersunk bolt, an external thread is arranged outside the ejection lead screw, and the ejection lead screw penetrates through the internal thread of the countersunk bolt and is connected with the internal thread of the countersunk bolt. The device is suitable for rapidly and efficiently taking out the shred throwing roller bearing sleeve of the cigarette making machine, the shred throwing roller bearing sleeve is sleeved on the sleeve, the sleeve and the countersunk bolt rotate through threads to enable the sleeve to abut against the shred throwing roller bearing sleeve, then the ejection lead screw rotates through the threads to bring out the shred throwing roller bearing sleeve, and the aims of saving labor and efficiently disassembling are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft sleeve disassembly tools, in particular to a disassembly device for a wire throwing roller bearing sleeve. Background Art

[0002] In the process of cigarette production, the throwing roller is an important part of the feeding system. Positive pressure blowing blows the tobacco shreds onto the throwing roller, which then delivers the tobacco shreds to the thin ribbon for cigarette rolling. The throwing roller often needs to be disassembled for maintenance and repair.

[0003] However, during the maintenance and repair process, the removal of the wire throwing roller bearing sleeve is a difficult problem. Due to the small removal space of the wire throwing roller bearing sleeve, it is not convenient to use other conventional auxiliary tools for adjustment, resulting in a time-consuming and laborious disassembly process. Violent disassembly is time-consuming and difficult, and it is difficult to find the focus point, and it may also cause irreparable damage to the assembly part. Therefore, it is necessary to design a tooling for quickly removing the wire throwing roller bearing sleeve. Utility Model Content

[0004] The utility model aims to provide a device for disassembling a wire throwing roller bearing sleeve, so as to realize the purpose of quickly taking out the wire throwing roller bearing sleeve.

[0005] According to the purpose of the utility model, the utility model provides a throwing roller bearing sleeve disassembly device, including a sleeve, a countersunk bolt and a knockout screw, the front end of the sleeve is provided with a plurality of slits, the bottom of the sleeve is provided with screw holes, and the countersunk bolt is threadedly connected to the sleeve; the countersunk bolt is a hollow structure, the internal hollow structure of the countersunk bolt is provided with an internal thread, the outside of the knockout screw is provided with an external thread, and the knockout screw passes through and is connected to the internal thread of the countersunk bolt.

[0006] Furthermore, the length of the ejector screw is greater than the length of the countersunk bolt.

[0007] Furthermore, the slit is parallel to the axis of the sleeve, and a plurality of the slits are evenly arranged on the circumferential surface of the sleeve.

[0008] Furthermore, the outer diameter of the sleeve is slightly smaller than the inner diameter of the wire throwing roller bearing sleeve that needs to be removed, so that the sleeve can be inserted into the interior of the wire throwing roller bearing sleeve.

[0009] Furthermore, the tail of the countersunk bolt is provided with an external thread, and the tail of the countersunk bolt passes through the sleeve and is threadedly connected to the sleeve.

[0010] Furthermore, the head end of the countersunk bolt is an expanded head with a gradually enlarged truncated cone structure.

[0011] Furthermore, the rear end of the countersunk bolt has an external hexagonal fastening portion, and the outer diameter of the external hexagonal fastening portion is smaller than the outer diameter of the screw rod at the rear end of the countersunk bolt.

[0012] Furthermore, the tail of the ejector screw is threadedly connected to an ejector nut.

[0013] Furthermore, it also includes an impact hammer, which includes an impact part and a handle, the impact part is hollow cylindrical, and the handles are provided on both sides of the impact part.

[0014] Furthermore, a handle is fixed on the outer wall of the sleeve.

[0015] The technical solution of the utility model is suitable for quickly and efficiently removing the wire throwing roller bearing sleeve of a cigarette making machine. The wire throwing roller bearing sleeve is put on the sleeve, and the sleeve and the countersunk bolt are rotated through threads to allow the sleeve to support the wire throwing roller bearing sleeve, and then the ejector screw is rotated through threads to bring out the wire throwing roller bearing sleeve, thereby achieving the purpose of labor-saving and efficient disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0018] Figure 2 An exploded view of an embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the sleeve of the embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the impact hammer of Embodiment 2 of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of the utility model when in use;

[0022] In the figure: 1. sleeve; 2. countersunk bolt; 3. ejector screw; 4. slit; 5. thread throwing roller bearing sleeve; 6. external hexagonal fastening part; 7. impact hammer; 701. impact part; 702. grip; 8. handle; 9. ejector nut. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] Example 1

[0027] like Figure 1-Figure 4 As shown,

[0028] A thread throwing roller bearing sleeve disassembly device comprises a sleeve 1, a countersunk bolt 2 and a push-out screw rod 3. The front end of the sleeve 1 is provided with a plurality of slits 4, which are arranged parallel to the axis of the sleeve 1 and are evenly arranged on the circumferential surface of the sleeve 1.

[0029] In this embodiment, the number of the slits 4 is at least two, and the slits 4 can expand under the action of external force, so that the diameter of the front end of the sleeve 1 can be increased.

[0030] The outer diameter of the sleeve 1 is slightly smaller than the inner diameter of the wire throwing roller bearing sleeve 5 to be removed, so that the sleeve 1 can be inserted into the interior of the wire throwing roller bearing sleeve 5.

[0031] The bottom of the sleeve 1 is provided with a screw hole, and the tail of the countersunk bolt 2 is provided with an external thread. The tail of the countersunk bolt 2 can pass through the sleeve 1 and be threadedly connected with the sleeve 1. The head end of the countersunk bolt 2 is an expanded head with a gradually enlarged truncated cone structure. By threading the countersunk bolt 2 with the bottom of the sleeve 1, the front end of the sleeve 1 can be expanded by the expanded head of the countersunk bolt 2, so that the sleeve 1 and the wire throwing roller bearing sleeve 5 are kept together.

[0032] The countersunk bolt 2 has an external hexagonal fastening portion 6 at the rear end, and the cross section of the external hexagonal fastening portion 6 is a regular hexagon. The countersunk bolt 2 can be rotated by a wrench through the external hexagonal fastening portion 6, so that the countersunk bolt 2 and the sleeve 1 are threadedly connected together.

[0033] The outer diameter of the external hexagonal fastening portion 6 is smaller than the outer diameter of the screw rod at the tail end of the countersunk bolt 2 , so that the arrangement of the external hexagonal fastening portion 6 will not affect the countersunk bolt 2 passing through the sleeve 1 .

[0034] The countersunk bolt 2 has a hollow structure, and the internal hollow structure of the countersunk bolt 2 is provided with an internal thread. The outside of the ejector screw 3 is provided with an external thread. The length of the ejector screw 3 is greater than the length of the countersunk bolt 2. The ejector screw 3 can be connected to the inside of the countersunk bolt 2 through a thread, and the ejector screw 3 is exposed outside the head end of the countersunk bolt 2.

[0035] The tail end of the ejector screw 3 is also provided with an external hexagonal fastening portion 6, through which the ejector screw 3 can be rotated by a wrench. The tail of the ejector screw 3 and the countersunk bolt 2 of the utility model is designed as a hexagonal external hexagonal fastening portion 6, which provides a fulcrum for the wrench, solving the problem of no fulcrum for disassembling the casting roller bearing sleeve 5.

[0036] After the tail of the ejector screw 3 is exposed from the countersunk bolt 2, it can abut against the front end of the column journal, and the ejector screw 3 is restricted by the front end of the journal. At this time, by continuously rotating the ejector screw 3, the ejector screw 3 can apply an outward force to the countersunk bolt 2, thereby driving the sleeve 1 fixed with the countersunk bolt 2 to move outward, and then taking out the wire throwing roller bearing sleeve 5. The wire throwing roller bearing sleeve 5 is brought out by the threaded rotation of the ejector screw 3, thereby avoiding damage to the assembly part of the wire throwing roller.

[0037] Example 2

[0038] like Figure 5As shown, the structure of this embodiment is basically the same as that of embodiment 1, and the difference lies in that, in this embodiment, when the ejector screw 3 cannot cooperate with the shaft neck near the wire throwing roller bearing sleeve 5, at this time, an ejector nut 9 can be threadedly connected to the tail end of the ejector screw 3, and by knocking the ejector nut 9 outward, the ejector screw 3 can be driven to move outward, and then the countersunk bolt 2 and the sleeve 1 can be driven to move outward, so that the wire throwing roller bearing sleeve 5 can be taken out.

[0039] Furthermore, in order to better cooperate with the ejection nut to eject the ejection screw 3, the present embodiment is further provided with a striking hammer 7, which includes a striking portion 701 and a gripping handle 702. The striking portion 701 is in a hollow cylindrical shape, and gripping handles 702 are provided on both sides of the striking portion 701. The striking portion 701 can be sleeved on the ejection screw 3, and then the ejection nut is threadedly connected to the ejection screw 3. When in use, by holding the gripping handle 702, the striking portion 701 is continuously driven to strike the ejection nut, and the ejection screw 3 can be driven to move outward by knocking the ejection nut outward, thereby driving the countersunk bolt 2 and the sleeve 1 to move outward, thereby removing the thread throwing roller bearing sleeve 5.

[0040] Example 3

[0041] The structure of this embodiment is basically the same as that of embodiment 1, except that, in order to facilitate the separation of the countersunk bolt 2 and the sleeve 1, a handle 8 is welded on the outer wall of the sleeve 1. When the sleeve 1 and the countersunk bolt 2 need to be separated, the hexagonal fastening portion 6 at the tail of the countersunk bolt 2 is fixed by a wrench, and then the sleeve 1 is rotated in the opposite direction by the handle 8, so that the sleeve 1 can be separated from the countersunk bolt 2, and the sleeve 1 can be separated from the wire throwing roller bearing sleeve 5. In order to improve the comfort of using the tool, a layer of rubber sleeve is provided on the outer side of the handle 8.

[0042] The utility model is mainly suitable for quickly and efficiently taking out the thread-throwing roller bearing sleeve 5 of the cigarette making machine. The thread-throwing roller bearing sleeve 5 is sleeved on the sleeve 1. The sleeve 1 and the countersunk bolt 2 are threadedly rotated to allow the sleeve 1 to support the thread-throwing roller bearing sleeve 5, and then the ejector screw rod 3 is threadedly rotated to bring out the thread-throwing roller bearing sleeve 5. The purpose of labor-saving and efficient disassembly is achieved. When the sleeve 1 and the countersunk bolt 2 are separated, the handle 8 of the sleeve 1 provides a fulcrum, and the sleeve 1 and the countersunk bolt 2 are threadedly rotated to separate.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A device for disassembling a wire throwing roller bearing sleeve, characterized in that: It includes a sleeve, a countersunk bolt and an ejector screw. The front end of the sleeve is provided with a plurality of slits, the bottom of the sleeve is provided with screw holes, and the countersunk bolt is threadedly connected to the sleeve; the countersunk bolt is a hollow structure, the internal hollow structure of the countersunk bolt is provided with an internal thread, the outside of the ejector screw is provided with an external thread, and the ejector screw passes through and is connected to the internal thread of the countersunk bolt.

2. The thread throwing roller bearing sleeve disassembly device according to claim 1, characterized in that: The length of the ejector screw is greater than the length of the countersunk bolt.

3. The thread throwing roller bearing sleeve disassembly device according to claim 1, characterized in that: The slits are parallel to the axis of the sleeve, and a plurality of the slits are evenly arranged on the circumferential surface of the sleeve.

4. The thread throwing roller bearing sleeve disassembly device according to claim 1, characterized in that: The outer diameter of the sleeve is greater than the inner diameter of the thread throwing roller bearing sleeve.

5. The thread throwing roller bearing sleeve disassembly device according to claim 1, characterized in that: The tail of the countersunk bolt is provided with an external thread, and the tail of the countersunk bolt passes through the sleeve and is threadedly connected with the sleeve.

6. The thread throwing roller bearing sleeve disassembly device according to claim 1, characterized in that: The head end of the countersunk bolt is an expanded head with a gradually enlarged truncated cone structure.

7. The thread throwing roller bearing sleeve disassembly device according to claim 1, characterized in that: The rear end of the countersunk bolt has an external hexagonal fastening portion, and the outer diameter of the external hexagonal fastening portion is smaller than the outer diameter of the screw rod at the rear end of the countersunk bolt.

8. The thread throwing roller bearing sleeve disassembly device according to claim 1, characterized in that: The tail of the ejector screw rod is threadedly connected with an ejector nut.

9. The thread throwing roller bearing sleeve disassembly device according to claim 8, characterized in that: It also includes an impact hammer, which includes an impact part and a gripping handle. The impact part is in a hollow cylindrical shape, and gripping handles are provided on both sides of the impact part.

10. The thread throwing roller bearing sleeve disassembly device according to claim 1, characterized in that: A handle is fixed on the outer wall of the sleeve.

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