A skeleton oil seal installation auxiliary device

Abstract

This utility model belongs to the field of tobacco machinery technology and discloses an auxiliary device for installing a skeleton oil seal. It includes a guide component and an impact sleeve. The guide component includes a connecting part and a guiding part. The connecting part is detachably coaxially connected to a reciprocating shaft, and its outer diameter is the same as the diameter of the reciprocating shaft, ensuring a smooth and seamless transition between the outer circumferential surface of the connecting part and the outer circumferential surface of the reciprocating shaft when connected. The guiding part is connected to the end of the connecting part away from the reciprocating shaft, and its outer diameter gradually decreases in the direction away from the connecting part, forming a guiding structure. The impact sleeve can be fitted onto the connected reciprocating shaft and the guide component, and the skeleton oil seal is fitted into place by striking the impact sleeve. Under the guidance of the guiding part, the skeleton oil seal can be fitted onto the connecting part. Simultaneously, due to the smooth and seamless transition between the connecting part and the outer circumferential surface of the reciprocating shaft, the skeleton oil seal can be safely and smoothly transferred onto the reciprocating shaft, thus achieving non-destructive installation.

Description

Technical Field

[0001] This utility model relates to the field of tobacco machinery technology, and in particular to an auxiliary device for installing a skeleton oil seal. Background Technology

[0002] In the tobacco machinery manufacturing and cigarette production fields, GD packaging machines are widely used in modern cigarette production lines due to their superior operating efficiency, reliable production stability, and compatibility with various cigarette specifications. GD packaging machines typically use skeleton oil seals to achieve contact sealing of the reciprocating shafts, preventing lubricating oil leakage at the gap between the reciprocating shafts. However, skeleton oil seals are prone to oil leakage during long-term, high-load continuous operation, leading to a chain reaction of problems such as lubricating oil contamination of cigarette packaging materials, corrosion of precision equipment components, and accelerated wear of moving parts. In severe cases, this can even cause equipment shutdown for maintenance, posing a significant threat to the continuity of cigarette production and the stability of product quality.

[0003] Currently, the common technical solution in the industry to address the aforementioned oil leakage problem is to replace the worn or failed skeleton oil seals, thereby restoring the sealing accuracy between the reciprocating shafts. However, during the replacement process, the skeleton oil seal is prone to collision and damage with the reciprocating shaft. Although the damaged skeleton oil seal can still be installed, it has lost its sealing function. As a result, the oil leakage problem persists after the equipment is restarted. This not only fails to achieve the maintenance objective but also increases the cost of skeleton oil seal consumables and maintenance time, seriously affecting the operational reliability of GD packaging machines and the efficiency of cigarette production.

[0004] Therefore, there is an urgent need to propose an auxiliary device for installing the skeleton oil seal in order to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an auxiliary device for installing skeleton oil seals, so as to achieve non-destructive installation of skeleton oil seals, effectively block the lubricating oil leakage channel, ensure the sealing effect of reciprocating shaft, shorten equipment maintenance cycle, and improve the operational reliability and cigarette production efficiency of GD packaging machine.

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

[0007] An auxiliary device for installing a skeleton oil seal includes:

[0008] A guide member, comprising a connecting portion and a guiding portion, wherein the connecting portion is detachably coaxially connected to a reciprocating shaft, and the outer diameter of the connecting portion is the same as the diameter of the reciprocating shaft; the guiding portion is connected to the end of the connecting portion away from the reciprocating shaft, and the outer diameter of the guiding portion gradually decreases in the direction away from the connecting portion.

[0009] An impact sleeve is provided, which can be fitted onto the connected reciprocating shaft and the guide member, and is used to abut against the axial end face of the skeleton oil seal.

[0010] In some optional embodiments, the reciprocating shaft includes a shaft body and a connecting stud, the connecting stud being coaxially connected to the shaft end of the shaft body, and the connecting portion having a threaded hole for threaded engagement with the connecting stud.

[0011] In some optional embodiments, the skeleton oil seal installation auxiliary device further includes a striking element for striking the impact sleeve axially.

[0012] In some alternative embodiments, the end of the impact sleeve away from the skeleton oil seal is a convex spherical surface.

[0013] In some alternative embodiments, the guide portion is frustoconical.

[0014] In some alternative embodiments, the cone angle of the guide portion is 30° to 60°.

[0015] In some alternative embodiments, the connection between the guide portion and the connecting portion is machined with a rounded chamfer.

[0016] In some alternative embodiments, the guide portion is hemispherical or spherical.

[0017] In some alternative embodiments, a slot is provided at the end of the guide portion away from the connecting portion.

[0018] In some optional embodiments, the slot is a countersunk hexagonal socket, and the skeleton oil seal installation auxiliary device further includes an internal hexagonal wrench adapted to the specifications of the countersunk hexagonal socket.

[0019] The beneficial effects of this utility model are:

[0020] This utility model provides an auxiliary device for installing a skeleton oil seal, including a guide and an impact sleeve. The guide includes a connecting part and a guiding part. The connecting part can be detachably coaxially connected to a reciprocating shaft, and the outer diameter of the connecting part is the same as the diameter of the reciprocating shaft, so that when the connecting part is connected to the reciprocating shaft, the outer peripheral surface of the connecting part and the outer peripheral surface of the reciprocating shaft smoothly transition and are seamlessly connected. The guiding part is connected to the end of the connecting part away from the reciprocating shaft, and the outer diameter of the guiding part gradually decreases in the direction away from the connecting part, forming a guiding structure. The impact sleeve can be sleeved on the connected reciprocating shaft and the guide to abut against the axial end face of the skeleton oil seal. When installing the skeleton oil seal, first connect the connecting part of the guide to the reciprocating shaft. Under the guidance of the guide, the skeleton oil seal can be safely and smoothly fitted onto the connecting part. At the same time, because the outer circumferential surface of the connecting part and the outer circumferential surface of the reciprocating shaft are smoothly transitioned and seamlessly connected, the skeleton oil seal can be safely and smoothly transitioned onto the reciprocating shaft. When the skeleton oil seal contacts the flange bushing, the impact sleeve is fitted onto the connected reciprocating shaft and guide, so that the impact sleeve abuts against the axial end face of the skeleton oil seal. By striking the impact sleeve, the skeleton oil seal is fitted into the first mounting groove of the flange bushing, thereby achieving non-destructive installation of the skeleton oil seal, effectively blocking the lubricating oil leakage channel, ensuring the sealing effect of the reciprocating shaft, shortening the equipment maintenance cycle, and improving the operational reliability and cigarette production efficiency of the GD packaging machine. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the installation position of the skeleton oil seal installation auxiliary device and the skeleton oil seal of this utility model;

[0022] Figure 2 This is a schematic diagram of the installation process of the guide component and the skeleton oil seal of this utility model.

[0023] In the picture:

[0024] 100. Oil seal with skeleton; 200. Reciprocating shaft; 210. Shaft body; 220. Connecting stud; 300. Housing wall panel; 400. Flange bushing; 410. First mounting groove; 500. Through cover; 510. Second mounting groove; 600. Bolt;

[0025] 1. Guide component; 11. Connecting part; 12. Guide part; 13. Threaded hole; 14. Slot;

[0026] 2. Impact sleeve; 21. Convex spherical surface. Detailed Implementation

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] The GD packaging machine uses a skeleton oil seal 100 to achieve contact sealing of the reciprocating shaft 200. The machine's housing wall panel 300 is equipped with a flange bushing 400 that releases lubricating oil. The reciprocating shaft 200 slides in conjunction with the flange bushing 400. The flange bushing 400 has a first mounting groove 410 for installing the skeleton oil seal 100. One end of the skeleton oil seal 100 is interference-fitted with the first mounting groove 410 to achieve radial positioning of the skeleton oil seal 100. A through cover 500 is fixedly connected to the flange bushing 400, and the through cover 500 has a second mounting groove 510 communicating with the first mounting groove 410 to accommodate the other end of the skeleton oil seal 100, thereby achieving axial positioning of the skeleton oil seal 100. This prevents the skeleton oil seal 100 from radially shifting or moving with the reciprocating shaft 200, which could lead to subsequent sealing failure. When installing the skeleton oil seal 100, because the reciprocating shaft 200 has a shoulder or external thread at the shaft end, the skeleton oil seal 100 is easily squeezed and collided with the reciprocating shaft 200 when it is inserted into the reciprocating shaft 200, causing lip damage and oil leakage.

[0032] To address the aforementioned problems, this embodiment provides an auxiliary device for installing a skeleton oil seal, such as... Figure 1 and Figure 2 As shown, the auxiliary device for installing the skeleton oil seal includes a guide 1 and an impact sleeve 2. The guide 1 includes a connecting part 11 and a guide part 12. The connecting part 11 can be detachably coaxially connected to the reciprocating shaft 200, and the outer diameter of the connecting part 11 is the same as the diameter of the reciprocating shaft 200, so that when the connecting part 11 is connected to the reciprocating shaft 200, the outer peripheral surface of the connecting part 11 and the outer peripheral surface of the reciprocating shaft 200 are smoothly transitioned and seamlessly connected. The guide part 12 is connected to the end of the connecting part 11 away from the reciprocating shaft 200, and the outer diameter of the guide part 12 gradually decreases in the direction away from the connecting part 11, forming a guide structure. The impact sleeve 2 can be sleeved on the connected reciprocating shaft 200 and the guide 1 for abutting against the axial end face of the skeleton oil seal 100.

[0033] When installing the skeleton oil seal 100, first connect the connecting part 11 of the guide member 1 to the reciprocating shaft 200; then, sleeve the skeleton oil seal 100 onto the reciprocating shaft 200 through the guide member 1. Under the guidance of the guide part 12, the skeleton oil seal 100 can be safely and smoothly sleeved onto the connecting part 11. At the same time, because the outer peripheral surface of the connecting part 11 and the outer peripheral surface of the reciprocating shaft 200 are smoothly transitioned and seamlessly connected, the skeleton oil seal 100 can be safely and smoothly transitioned onto the reciprocating shaft 200; when the skeleton oil seal 100 contacts the flange bushing 400, the impact sleeve 2... The impact sleeve 2 is fitted onto the connected reciprocating shaft 200 and guide member 1, so that the impact sleeve 2 abuts against the axial end face of the skeleton oil seal 100. By striking the impact sleeve 2, the skeleton oil seal 100 is assembled into the first mounting groove 410 of the flange bushing 400. Then, the impact sleeve 2 is removed, and the through cover 500 is fitted onto the reciprocating shaft 200 through the guide member 1 and fixedly connected to the flange bushing 400 by bolts 600, so as to achieve non-destructive installation of the skeleton oil seal 100. Finally, the guide member 1 is separated from the reciprocating shaft 200, so that the actuator can be installed on the shaft end of the reciprocating shaft 200.

[0034] By using the skeleton oil seal installation auxiliary device provided in this embodiment, the skeleton oil seal 100 can be installed without damage, effectively blocking the lubricating oil leakage channel, ensuring the sealing effect of the reciprocating shaft 200, shortening the equipment maintenance cycle, and improving the operational reliability and cigarette production efficiency of the GD packaging machine.

[0035] In some optional embodiments, the reciprocating shaft 200 includes a shaft body 210 and a connecting stud 220. The connecting stud 220 is coaxially connected to the shaft end of the shaft body 210, and the connecting portion 11 has a threaded hole 13 for threaded engagement with the connecting stud 220. The guide member 1 is connected to the reciprocating shaft 200 through threaded engagement, which not only ensures a stable connection but also facilitates easy assembly and disassembly and operation. In addition, the connecting stud 220 is threaded into the threaded hole 13, and the external thread of the connecting stud 220 is covered within the connecting portion 11. Furthermore, the outer peripheral surface of the connecting portion 11 can smoothly transition and seamlessly connect with the outer peripheral surface of the shaft body 210, thus concealing the shoulder at the connection between the shaft body 210 and the connecting stud 220. This prevents the lip of the skeleton oil seal 100 from contacting the external thread and the shoulder, thereby ensuring the non-destructive installation of the skeleton oil seal 100.

[0036] In some optional embodiments, the skeleton oil seal installation aid further includes a striking element for axially striking the impact sleeve 2, thereby assembling the skeleton oil seal 100 into the first mounting groove 410 of the flange bushing 400. Exemplarily, the striking element may be, but is not limited to, a hammer. Of course, it is understood that an operator can also manually strike the impact sleeve 2 to install the skeleton oil seal 100 into the flange bushing 400 in the same way.

[0037] In some optional embodiments, the end of the impact sleeve 2 away from the skeleton oil seal 100 is a convex spherical surface 21. During impact, the curvature of the convex spherical surface 21 can converge the direction of the eccentric force towards the axial direction of the impact sleeve 2 at any position of the impact point on the convex spherical surface 21, so that the impact force is efficiently converted into an effective force along the axial direction of the impact sleeve 2. This is beneficial to improving installation efficiency, and it also has lower requirements for the operator's centering accuracy of the impact point, strong fault tolerance, and convenient operation.

[0038] In some optional embodiments, the guide portion 12 is truncated cone-shaped, and the guide cone surface of the truncated cone can generate radial corrective force on the skeleton oil seal 100 through inclined contact, so as to achieve self-centering guidance during assembly and ensure that the skeleton oil seal 100 is safely and smoothly transitioned to the connecting portion 11.

[0039] In some optional embodiments, the cone angle of the frustum-shaped guide portion 12 is 30° to 60°, so that the inclination of its guide cone surface is appropriate, which can quickly guide the skeleton oil seal 100 and complete self-alignment within a short axial stroke. Exemplarily, the cone angle of the frustum-shaped guide portion 12 can be 30°, 45° or 60°, which is not limited here.

[0040] In some optional embodiments, the connection between the guide portion 12 and the connecting portion 11 is machined with a rounded chamfer to prevent the lip of the skeleton oil seal 100 from colliding with the edge at the junction of the guide portion 12 and the connecting portion 11, thereby further ensuring the non-destructive installation of the skeleton oil seal 100.

[0041] In other alternative embodiments, the guide portion 12 may also be hemispherical or spherical, which also has a guiding function, and is not limited here.

[0042] In some optional embodiments, a slot 14 is provided at the end of the guide portion 12 away from the connecting portion 11. The operator can use a tool to engage with the slot 14 to facilitate screwing the guide 1 to connect or disconnect it from the connecting stud 220. This improves the ease of installation of the guide 1 and solves the problem of the smooth surface of the guide 1 making it difficult to operate.

[0043] In addition, the slot 14 is recessed into the axial end face of the guide portion 12, which facilitates operation and avoids interference with the skeleton oil seal 100, further ensuring the non-destructive installation of the skeleton oil seal 100.

[0044] In some optional embodiments, the slot 14 is a countersunk hexagonal socket, and the skeleton oil seal installation auxiliary device also includes an Allen wrench adapted to the specifications of the countersunk hexagonal socket. The countersunk hexagonal socket is easy to machine, the Allen wrench is readily available, and it has a lever arm perpendicular to the axis of the guide 1, which can improve the ease of operation.

[0045] Optionally, the slot 14 can also be a Phillips head or a slotted head. Correspondingly, the skeleton oil seal installation auxiliary device includes a screwdriver that is compatible with the Phillips head or slotted head specifications, which can also be used to screw the guide 1. This is not limited here.

[0046] 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 skeleton oil seal installation aid characterized by, include: A guide member (1) includes a connecting part (11) and a guide part (12). The connecting part (11) is detachably coaxially connected to a reciprocating shaft (200), and the outer diameter of the connecting part (11) is the same as the diameter of the reciprocating shaft (200). The guide part (12) is connected to the end of the connecting part (11) away from the reciprocating shaft (200), and the outer diameter of the guide part (12) gradually decreases in the direction away from the connecting part (11). Impact sleeve (2), which can be sleeved on the connected reciprocating shaft (200) and the guide (1) for contacting the axial end face of the skeleton oil seal (100).

2. The skeleton oil seal installation aid of claim 1, wherein, The reciprocating shaft (200) includes a shaft body (210) and a connecting stud (220). The connecting stud (220) is coaxially connected to the shaft end of the shaft body (210). The connecting part (11) has a threaded hole (13) for threaded engagement with the connecting stud (220).

3. The skeleton oil seal installation auxiliary device according to claim 1, characterized in that, The skeleton oil seal installation auxiliary device also includes a striking element for striking the impact sleeve (2) axially.

4. The auxiliary device for installing the skeleton oil seal according to claim 1, characterized in that, The end of the impact sleeve (2) away from the skeleton oil seal (100) is a convex spherical surface (21).

5. The auxiliary device for installing the skeleton oil seal according to claim 1, characterized in that, The guide part (12) is truncated cone-shaped.

6. The auxiliary device for installing the skeleton oil seal according to claim 5, characterized in that, The cone angle of the guide part (12) is 30° to 60°.

7. The auxiliary device for installing the skeleton oil seal according to claim 5, characterized in that, The connection between the guide part (12) and the connecting part (11) is machined with a rounded chamfer.

8. The auxiliary device for installing the skeleton oil seal according to claim 1, characterized in that, The guide part (12) is hemispherical or spherical.

9. The auxiliary device for installing the skeleton oil seal according to any one of claims 1 to 8, characterized in that, The guide portion (12) has a slot (14) at one end away from the connecting portion (11).

10. The skeleton oil seal installation auxiliary device according to claim 9, characterized in that, The slot (14) is a countersunk hexagonal socket, and the skeleton oil seal installation auxiliary device also includes an internal hexagonal wrench that is compatible with the specifications of the countersunk hexagonal socket.

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