Seal installation tool

Abstract

The application relates to a sealing piece mounting tool which comprises a hand-held part, a first pressing part and a second pressing part, the hand-held part is connected with the first pressing part and the second pressing part, the second pressing part is arranged on the outer circumferential side of the first pressing part, and the hand-held part, the first pressing part and the second pressing part are coaxially arranged; the first pressing part is used for pressing a first sealing piece, and a first avoiding hole is arranged on the first pressing part and used for avoiding a key shaft; the second pressing part is used for pressing a second sealing piece, and an avoiding groove is arranged on the second pressing part and used for avoiding a shaft sleeve. In the sealing piece mounting tool, the first pressing part and the second pressing part can generate uniform pressure on sealing pieces of different specifications, so that uneven force on the sealing pieces during installation is avoided; the coaxial arrangement of the first pressing part and the second pressing part ensures the coaxiality when the first pressing part and the second pressing part contact the sealing pieces of corresponding specifications, so that the sealing pieces are prevented from being skewed after installation.

Description

Technical Field

[0001] This application relates to the field of cigarette equipment technology, and in particular to a sealing installation tool. Background Technology

[0002] The cigarette conveying system primarily transports double-length cigarettes from the cigarette cutting system smoothly onto the inlet drum of the YJ27 loading machine. The system consists of a spider-hand mechanism, a cigarette conveying guide rail, and a spider-hand negative pressure system. The spider-hand mechanism is used to smoothly transfer the cigarettes, ensuring that their appearance is not damaged and that there is no head-collision.

[0003] When the cigarette conveying system is running, the spider-arm mechanism's rotary table rotates clockwise under the drive of the main transmission component. Several conveyor arms are mounted on the rotary table, each equipped with a suction trough. The conveyor arms rotate counterclockwise around their own center of rotation, and the suction troughs also rotate clockwise around their own centers of rotation. During the spider-arm mechanism's movement, the angular velocities of the rotary table, conveyor arms, and suction troughs relative to their respective centers of rotation are equal, so the suction troughs remain horizontal regardless of the position of the conveyor arms. When the conveyor arm rotates to the first position, the suction trough sucks up a cigarette of double length from the cigarette conveying guide rail. When the conveyor arm rotates to the second position, the cigarette sucked up by the suction trough is aligned with a groove on the inlet drum wheel of the YJ27 / YJ212 mounting machine. The suction trough lowers the cigarette, and the double-length cigarette is sucked onto the inlet drum wheel, completing the cigarette conveying process.

[0004] In addition, the seals on the conveyor arm act as a seal for the oil. The spider arm drive system heats up easily after prolonged high-speed rotation, therefore, it requires concentrated oil lubrication. The sealing rings for this oil are typically 57×72×9. These seals are prone to aging and failure after prolonged operation at high temperatures, leading to oil leaks. Furthermore, there is a drive shaft in the center of the seal. When replacing or installing the seal on the drive shaft, uneven force can cause the seal to become misaligned, potentially damaging it. Alternatively, improper installation of the seal can also lead to oil leaks from the conveyor arm.

[0005] Statistics show that the equipment's conveyor arm leaks oil at least 5 times per month, and the average number of times the sealing ring needs to be replaced and reworked is 2.8 times. The reason for this frequent need to replace the sealing ring is that the inner diameter of the spider arm housing's conveyor arm is larger than the outer diameter of the sealing ring. Combined with the protruding conveyor shaft, this causes uneven stress on the sealing ring during installation, leading to misalignment and damage. Utility Model Content

[0006] Therefore, it is necessary to provide a sealing installation tool to address the current problems of misalignment and damage to sealing rings during installation.

[0007] This application provides a sealing component installation tool, including a hand-held part, a first pressing part, and a second pressing part. The hand-held part is connected to the first pressing part and the second pressing part. The second pressing part is disposed on the outer peripheral side of the first pressing part, and the hand-held part, the first pressing part, and the second pressing part are coaxially arranged.

[0008] The first pressing part is used to press against the first sealing element, and the first pressing part is provided with a first clearance hole for clearance of the key shaft; the second pressing part is used to press against the second sealing element, and the second pressing part is provided with a clearance groove for clearance of the bushing.

[0009] In one embodiment, the handheld part is provided with a second clearance hole, which is a blind hole and communicates with the first clearance hole. The second clearance hole is used to avoid the key shaft.

[0010] In one embodiment, the first pressing portion extends in a direction away from the handle portion to form a first abutting portion, the first abutting portion being used to press against the first seal.

[0011] In one embodiment, the second pressing part includes a pressing body and a second abutting part. The second abutting part extends from one end of the pressing body away from the handle part toward the clearance groove. The end of the pressing body away from the handle part and the second abutting part are used to press against the second seal.

[0012] In one embodiment, the clearance groove is annular and is located between the clamping body and the first clamping part.

[0013] In one embodiment, the abutting surface of the first abutting portion is parallel to the abutting surface of the second abutting portion.

[0014] In one embodiment, the outer diameter of the first clamping part is larger than the outer diameter of the handle part.

[0015] In one embodiment, the connection between the handle and the first pressing part is rounded; and / or, the connection between the first pressing part and the second pressing part is rounded; and / or, the corner of the second pressing part is rounded.

[0016] In one embodiment, the handheld part, the first pressing part, and the second pressing part are integrally formed.

[0017] In one embodiment, the outer surface of the handheld part is provided with an anti-slip structure.

[0018] In the aforementioned seal installation tool, the first clamping part is used to press against the first seal, and the second clamping part is used to reach the second seal. The first clamping part is provided with a first clearance hole for avoiding the spline shaft, and the second clamping part is provided with a clearance groove. The first clearance hole ensures the coaxiality between the first clamping part and the spline shaft, and the clearance groove is used to avoid the bushing. At this time, when installing seals of different specifications, both the first clamping part and the second clamping part can generate uniform pressure on the seals of different specifications, so as to avoid uneven force on the seals during installation, which could lead to seal damage. At the same time, the first clamping part and the second clamping part are coaxially arranged to ensure the coaxiality of the first clamping part and the second clamping part when in contact with the corresponding seals, thus preventing the seals from being misaligned after installation. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of a sealing installation tool according to an embodiment of this application.

[0020] Figure 2 This is a radial cross-sectional view of a sealing installation tool according to an embodiment of this application.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Handhold part; 11. Second clearance hole; 2. First pressing part; 21. First clearance hole; 22. First abutting part; 3. Second pressing part; 31. Clearance groove; 32. Pressing body; 321. Second abutting part. Detailed Implementation

[0023] 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.

[0024] Furthermore, where the terms "first" and "second" appear, these terms are 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 with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] When the cigarette conveying system is operating, the spider-arm mechanism's rotary table rotates clockwise under the drive of the main transmission component. Several conveyor arms are mounted on the rotary table, each equipped with a suction groove. The conveyor arms rotate counter-clockwise around their own center of rotation, while the suction grooves rotate clockwise around their own center of rotation. During the spider-arm mechanism's movement, the rotary table, conveyor arms, and suction grooves all have the same angular velocity relative to their respective centers of rotation. Therefore, regardless of the position of the conveyor arms, the suction grooves always remain horizontal. When the conveyor arm reaches the first position, the suction groove picks up a cigarette of double length from the cigarette conveying guide rail. When the conveyor arm reaches the second position, the cigarette picked up by the suction groove is precisely aligned with a groove on the inlet drum wheel of the receiving machine. The suction groove lowers the cigarette, and the double-length cigarette is sucked onto the inlet drum wheel, thus completing the cigarette conveying process.

[0027] In addition, the seals on the conveyor arm act as a seal for the hydraulic fluid. The spider arm drive system heats up easily after prolonged high-speed rotation, requiring centralized lubrication. The sealing rings, when operating at high temperatures for extended periods, are prone to aging and failure, leading to oil leaks. Furthermore, a drive shaft is located in the center of the sealing ring. When replacing or installing the sealing ring on the drive shaft, uneven force can cause the sealing ring to become misaligned, resulting in damage. Improper installation of the sealing ring can also cause oil leaks in the conveyor arm. Therefore, in order to avoid the above-mentioned problems, this application provides a sealing installation tool.

[0028] like Figure 1 and Figure 2As shown, the seal installation tool includes a handle 1, a first clamping part 2, and a second clamping part 3. The handle 1 is connected to the first clamping part 2, and the second clamping part 3 is arranged around the outer periphery of the first clamping part 2. The handle 1, the first clamping part 2, and the second clamping part 3 are coaxially arranged. The first clamping part 2 is used to press against the first seal and has a first clearance hole 21 for accommodating the key shaft. The second clamping part 3 is used to press against the second seal and has a clearance groove 31 for accommodating the bushing. Therefore, the handle 1 is coaxially arranged with the first pressing part 2 and the second pressing part 3, ensuring that the coaxiality between the seal and the first pressing part 2 and the second pressing part 3 is maintained when pressing seals of different specifications. This avoids misalignment or other defects in the installation of the seal during the pressing process. Simultaneously, the first pressing part 2 and the second pressing part 3 apply the same pressure to all parts of the seal, ensuring that the seal is not subjected to uneven stress during installation, thus preventing seal breakage.

[0029] Specifically, the first clamping part 2 has a first clearance hole 21, and the handle part 1 has a second clearance hole 11. The first clearance hole 21 and the second clearance hole 11 are connected and coaxially arranged. The first clearance hole 21 and the second clearance hole 11 are also coaxially arranged with the first clamping part 2, that is, the central axis of the first clearance hole 21 coincides with the central axis of the first clamping part 2. The first clearance hole 21 and the second clearance hole 11 are connected and are blind holes, which can be used to accommodate the spline shaft of the device passing through the first clearance hole 21 and inserting into the second clearance hole 11.

[0030] It should be noted that this seal installation tool is compatible with both bottom spindles (splined spindles) and those without bottom spindles. Furthermore, the first clearance hole 21 can be adjusted according to the diameter of the bottom spindle to be inserted. Additionally, the diameter of the first clearance hole 21 can be set slightly larger than the diameter of the bottom spindle to be inserted. By setting the diameter of the first clearance hole 21 slightly larger than the diameter of the bottom spindle, it is possible to ensure smooth insertion of the bottom spindle and reduce the overall weight of the seal installation tool, thus ensuring user comfort when using it.

[0031] More specifically, the dimensions of the first seal are smaller than those of the second seal. That is, the first clamping part 2 can be used to clamp the smaller-sized first seal, and the second clamping part 3 can be used to clamp the larger-sized second seal. For example, the dimensions of the first seal are 20×28×6, and the dimensions of the second seal are 57×72×9.

[0032] Therefore, using the aforementioned sealing installation tool, the first clamping part 2 is used to press against the first sealing element, and the second clamping part 3 is used to reach the second sealing element. The first clamping part 2 is provided with a first clearance hole 21 for avoiding the spline shaft, and the second clamping part 3 is provided with a clearance groove 31. The first clearance hole 21 ensures the coaxiality between the first clamping part 2 and the spline shaft, and the clearance groove 31 is used to avoid the bushing. At this time, when installing sealing elements of different specifications, both the first clamping part 2 and the second clamping part 3 can generate uniform pressure on the sealing elements of different specifications, so as to avoid the sealing elements from cracking due to uneven force during installation. At the same time, the first clamping part 2 and the second clamping part 3 are coaxially arranged, which ensures the coaxiality of the first clamping part 2 and the second clamping part 3 when in contact with the corresponding sealing elements, and avoids the sealing elements from becoming misaligned after installation.

[0033] It should also be noted that, in order to verify the effectiveness of the sealing oil seal installation tool, the inventors observed and used it for more than six months. They found that after using this tool to install the seals, the number of times the seals leaked oil decreased from 5 times / month to 0 times / month. Furthermore, the number of times seals needed to be replaced due to misalignment during installation decreased from an average of 2.8 times to 0 times. With the introduction of this sealing installation tool, misalignment of the seals after installation can be effectively avoided, thus preventing seal breakage and oil leakage caused by improper installation. Therefore, the use of this sealing installation tool effectively reduces the generation of grease and fumes, ensuring the efficient and orderly progress of subsequent installation and production activities.

[0034] In an optional embodiment, to ensure that the seal is properly installed on the device during the installation process and to prevent misalignment after installation, this embodiment uses the installation of a first seal as an example. The first seal is a small-sized seal, typically installed using a first clamping part 2. One end of the first clamping part 2 is connected to the handle part 1, and the other end extends axially away from the handle part 1, extending a first abutting part 22. The extended first abutting part 22 pushes against the first seal until it presses against the device, thus achieving smooth fixation between the first seal and the device.

[0035] In an optional embodiment, if the second seal needs to be assembled, it can be assembled by pressing the second sealing member 3 against it. The second pressing member 3 includes a pressing body 32, and a second abutting portion 321 extends radially from the pressing body 32, which abuts against the second seal. The abutting surface of the second abutting portion 321 is on the same side as when the first pressing member 2 does not extend beyond the first abutting portion 22. However, when the first pressing member 2 extends axially beyond the first abutting portion 22, the abutting surface of the first abutting portion 22 and the abutting surface of the second abutting portion 321 intersect, meaning the abutting surfaces of the first abutting portion 22 and the second abutting portion 321 are at different levels, and the abutting surfaces of the first abutting portion 22 and the second abutting portion 321 are parallel.

[0036] In this embodiment, the clamping body 32 has a ring-shaped structure. One end of the clamping body 32 near the first clamping part 2 or the handle part 1 is connected to the outer peripheral wall of the first clamping part 2 or the handle part 1. The end of the clamping body 32 away from the first clamping part 2 is connected to the second abutment part 321, and a gap is formed between the end of the clamping body 32 away from the first clamping part 2 and the first clamping part 2. The gap formed between the two is the clearance groove 31. Furthermore, by providing the clearance groove 31, it can be used to avoid protruding bushings on the equipment.

[0037] In an optional embodiment, the first clamping part 2, the second clamping part 3, and the handle part 1 can be integrally molded. This ensures the structural strength of the sealing installation tool by integrating the handle part 1, the first clamping part 2, and the second clamping part 3. Furthermore, since a concentric first clearance hole 21 is required between the first clamping part 2 and the handle part 1, integral molding the first clamping part 2 and the handle part 1 effectively ensures their coaxiality, guaranteeing that the central axis of the first clearance hole 21 is stably aligned with the central axis of the first clamping part 2 and the handle part 1 after the first clearance hole 21 is formed on the first clamping part 2 and the handle part 1. Additionally, since a clearance groove 31 needs to be formed between the first clamping part 2 and the second clamping part 3, it is also necessary to ensure that the central axis of the clearance groove 31 is coaxial with the central axes of the first clamping part 2, the handle part 1, and the second clamping part 3. Therefore, by using an integral molding method, it is possible to better control the spacing between the grooves of each part of the annular groove after it is arranged around the outer periphery of the first pressing part 2, thereby ensuring the coaxiality of the annular groove with the first pressing part 2, the second pressing part 3 and the hand-held part 1.

[0038] In an optional embodiment, the first clamping part 2, the second clamping part 3, and the handheld part 1 can also be integrated into a sealing installation tool by means of separate casting and then reassembly. It should be noted that this method of separate casting and reassembly makes achieving coaxiality more difficult. Of course, casting each component separately can effectively improve manufacturing efficiency and reduce processing difficulty. However, during assembly, due to potential errors in each component during casting, the central axes of each component cannot be guaranteed to coincide. Furthermore, since components are usually connected and fixed by welding during assembly, welding may further cause misalignment between components. Therefore, to balance the manufacturing efficiency and difficulty of the installation tool, the installation tool can be obtained by either integral molding or separate assembly, depending on the actual installation accuracy requirements.

[0039] In an optional embodiment, the outer diameter of the first pressing part 2 is larger than the outer diameter of the handheld part 1. That is, the handheld part 1 spreads radially from its connecting end toward the first pressing part 2 until the connecting end of the handheld part 1 spreads to be flush with the outer surface of the handheld part 1. At this time, the connecting end of the first pressing part 2 and the handheld part 1 is formed as a limit. Therefore, the length that the user can grasp is the distance between the end of the handheld part 1 away from the first pressing part 2 and the connecting end of the handheld part 1 and the first pressing part 2.

[0040] In an optional embodiment, the corner of the handheld part 1 is provided with a rounded transition, the connection end between the first pressing part 2 and the handheld part 1 is provided with a rounded transition, the connection between the second pressing part 3 and the first pressing part 2 or the connecting part is provided with a rounded transition, and the corner of the outer periphery of the second pressing part 3 is provided with a rounded transition.

[0041] In an optional embodiment, the outer surface of the handle 1 is provided with an anti-slip structure. The anti-slip structure may be provided with anti-slip protrusions or anti-slip particles on the handle 1. The anti-slip protrusions or anti-slip particles can increase the friction between the handle 1 and the user, thereby preventing the sealing installation tool from slipping or other adverse situations during use.

[0042] In an optional embodiment, to ensure the comfort of the seal installation tool during use, the length of the handle 1 of the seal installation tool can be adjusted. The adjustment scheme is based on ergonomic research on the handle 1. By surveying the height of several male maintenance workers, the palm width and finger length are calculated, and based on this, the outer diameter and length of the oil seal installation tool are calculated. According to statistics, the average height H of maintenance workers is 175.8cm. According to the "Anthropometric Specifications for Chinese Adults" (GB / T10000-1988), the palm width of males can be calculated as 0.055H = 9.7cm. Considering the processing accuracy and the margin for maneuver, the outer diameter of the handle 1 is set to 36-40mm, and the length of the installation tool is set to 90-110mm for the most suitable operation. Preferably, the outer diameter of the handle 1 is 40mm, and the length of the installation tool is set to 100mm.

[0043] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0045] 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.

[0046] 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 protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A sealing element installation tool, characterized in that, It includes a hand-held part, a first pressing part and a second pressing part. The hand-held part is connected to the first pressing part and the second pressing part. The second pressing part is disposed on the outer periphery of the first pressing part, and the hand-held part, the first pressing part and the second pressing part are coaxially arranged. The first pressing part is used to press against the first sealing element, and the first pressing part is provided with a first clearance hole for clearance of the key shaft; the second pressing part is used to press against the second sealing element, and the second pressing part is provided with a clearance groove for clearance of the bushing.

2. The sealing installation tool according to claim 1, characterized in that, The hand-held part is provided with a second clearance hole, which is a blind hole. The second clearance hole communicates with the first clearance hole and is used to avoid the key shaft.

3. The sealing installation tool according to claim 1, characterized in that, The first pressing portion extends in a direction away from the handle portion to form a first abutting portion, which is used to press against the first seal.

4. The sealing installation tool according to claim 3, characterized in that, The second pressing part includes a pressing body and a second abutting part. The second abutting part extends from one end of the pressing body away from the handle part toward the outside of the clearance groove. The end of the pressing body away from the handle part and the second abutting part are used to press against the second sealing member.

5. The sealing installation tool according to claim 4, characterized in that, The clearance groove is annular and is located between the pressing body and the first pressing part.

6. The sealing installation tool according to claim 4, characterized in that, The side of the first abutting portion that is away from the hand-held portion is parallel to the side of the second abutting portion that is away from the hand-held portion.

7. The sealing installation tool according to any one of claims 1 to 6, characterized in that, The outer diameter of the first clamping part is larger than the outer diameter of the handle part.

8. The sealing installation tool according to any one of claims 1 to 6, characterized in that, The connection between the handle and the first pressing part is rounded; and / or, the connection between the first pressing part and the second pressing part is rounded; and / or, the corner of the second pressing part is rounded.

9. The sealing installation tool according to any one of claims 1 to 6, characterized in that, The hand-held part, the first pressing part, and the second pressing part are integrally formed.

10. The sealing installation tool according to any one of claims 1 to 6, characterized in that, The outer surface of the handheld part is provided with an anti-slip structure.

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