A tool for assisting in the disassembly of a chain

Abstract

The utility model belongs to chain dismounting tool technical field discloses a kind of auxiliary dismounting tool for chain.This auxiliary dismounting tool includes mounting seat, support seat and multiple claws, support seat is set on mounting seat, the outer periphery of support seat is arc-shaped and is set, multiple claws are spaced and protrude on the outer periphery of support seat, form accommodating groove between adjacent two claws, multiple links of chain are respectively clamped in multiple claws, and the pin shaft between adjacent two links is located in corresponding accommodating groove.This auxiliary dismounting tool plays the role of fixing chain, positioning pin shaft by claw and accommodating groove, avoids chain displacement in dismounting process, when chain is dismounted, chain does not need to be manually fixed, single-person operation can be completed, saves manpower cost, reduces labour intensity, improves dismounting efficiency, reduces the risk of being scratched when manually pulling chain, and high safety.

Description

Technical Field

[0001] This utility model relates to the field of chain disassembly fixtures, and in particular to an auxiliary disassembly fixture for chains. Background Technology

[0002] A chain is a mechanical component used to transmit power or motion, widely used in various mechanical transmission systems. It consists of multiple links connected by pins and is typically used for functions such as power transmission, drive, lifting, or traction. Chains are widely used in transportation, automotive, machinery, and automation equipment, thus requiring sophisticated maintenance, disassembly, and installation techniques.

[0003] Existing chain disassembly tools require multiple people to work together: one person holds the chain while another strikes the pin. When the chain is taut, manually pulling the chain links requires a lot of physical strength. When striking, the chain can easily fly and injure people. Hands may be cut by the chain during the pulling process, posing a risk of workplace injury. Furthermore, it is difficult to accurately locate the chain links, which can easily lead to damage to the chain or pins and increase maintenance costs.

[0004] Therefore, there is a need to provide an auxiliary disassembly tool for chains to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an auxiliary disassembly fixture for chains that eliminates the need for manual chain fixing, saves labor costs, reduces labor intensity, improves disassembly efficiency, and offers high safety and reliability.

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

[0007] A disassembly tooling for a chain, the chain comprising multiple links, wherein a pin is rotatably connected between adjacent links, the disassembly tooling comprising:

[0008] Mounting base;

[0009] The support base and multiple locking teeth are provided. The support base is disposed on the mounting base. The outer periphery of the support base is arc-shaped. The multiple locking teeth are spaced out and protrude from the outer periphery of the support base. A receiving groove is formed between two adjacent locking teeth. Multiple chain links of the chain are respectively engaged with the multiple locking teeth. The pin between two adjacent chain links is located in the corresponding receiving groove.

[0010] Preferably, the outer surface of the tooth is provided with a wear-resistant layer.

[0011] Preferably, the wear-resistant layer is made of chromium carbide.

[0012] Preferably, when the chain link is engaged with the locking tooth, the top surface of the locking tooth is higher than the top surface of the chain link.

[0013] Preferably, along the direction extending away from the support base, the opposite side walls of the locking teeth gradually approach each other.

[0014] Preferably, there are multiple support seats, which are spaced apart on the mounting base. The distance between two adjacent teeth on the support seats is x, and the value of x is different for the multiple support seats.

[0015] Preferably, the support base is welded and fixed to the mounting base.

[0016] Preferably, the mounting base has multiple mounting holes, and the auxiliary disassembly fixture for the chain also includes multiple locking members that pass through the mounting holes and the working plane to fix the mounting base to the working plane.

[0017] Preferably, the support base includes a reinforcing part and a wear-resistant part. The reinforcing part is disposed on the mounting base, and the retaining teeth protrude from the wear-resistant part. The reinforcing part is made of carbon steel, and the wear-resistant part is made of chromium carbide.

[0018] Preferably, the support base further includes a connecting portion disposed between the reinforcing portion and the wear-resistant portion, and the connecting portion is provided with a plurality of reinforcing ribs at intervals inside, the reinforcing ribs being made of carbon steel.

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

[0020] This auxiliary disassembly tooling includes a mounting base, a support base, and multiple locking teeth. The support base is set on the mounting base, and the outer periphery of the support base is arc-shaped. Multiple locking teeth protrude at intervals from the outer periphery of the support base, and a receiving groove is formed between two adjacent locking teeth. Multiple chain links are respectively engaged with multiple locking teeth, and the pin between two adjacent chain links is located in the corresponding receiving groove.

[0021] When disassembling the chain, first, the mounting base must be fixed to a fixed working surface to secure this auxiliary disassembly tool. This can be done by fixing the mounting base to a workbench, the ground, or an equipment frame. Then, place the pin to be disassembled into a suitable receiving slot, and engage the corresponding two chain links onto the locking teeth. To ensure the chain is stably engaged with this auxiliary disassembly tool, engage the other chain links onto their respective locking teeth as well, ensuring the chain is securely fixed to the support. After the chain is secured to the support, use a hammer, press, or other tools to tap or apply pressure to the pin, causing it to be pushed out of the chain link, completing the disassembly of two adjacent chain links.

[0022] This auxiliary disassembly fixture uses teeth and slots to secure the chain and position the pin, preventing chain displacement during disassembly and ensuring the pin remains aligned with the disassembly station. This guarantees the pin can be accurately knocked out, avoiding damage to chain links or the pin due to inaccurate positioning. Disassembly eliminates the need for manual chain securing, allowing for single-person operation, saving labor costs, reducing labor intensity, increasing disassembly efficiency, and lowering the risk of scratches from manually pulling the chain, thus ensuring high safety.

[0023] Furthermore, this auxiliary disassembly tool can be mounted on different working surfaces via the mounting base, allowing it to be installed in a suitable position according to operating habits, reducing bending over, tiptoeing, and other operating postures, thus reducing labor intensity. The mounting base makes it easy to install and disassemble the auxiliary disassembly tool, facilitating its carrying and movement. Moreover, by fixing the auxiliary disassembly tool to the working surface via the mounting base, it can be ensured that the auxiliary disassembly tool will not shake due to external forces when the pin is struck, thus improving the stability of the disassembly process. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the auxiliary disassembly fixture for chains provided by this utility model;

[0025] Figure 2 This is a cross-sectional view of the support base provided by this utility model.

[0026] In the picture:

[0027] 1. Mounting base; 11. Mounting holes;

[0028] 2. Support base; 21. Reinforcing part; 22. Wear-resistant part; 23. Connecting part; 24. Reinforcing rib;

[0029] 3. Cutter teeth;

[0030] 4. Receptacle. 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," "left," "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] Existing chain disassembly tools require multiple people to work together: one person holds the chain while another strikes the pin. When the chain is taut, manually pulling the chain links requires a lot of physical strength. When striking, the chain can easily fly and injure people. Hands may be cut by the chain during the pulling process, posing a risk of workplace injury. Furthermore, it is difficult to accurately locate each link of the chain, which can easily lead to damage to the chain or pins, increasing maintenance costs.

[0036] Therefore, such as Figure 1 As shown, this embodiment provides an auxiliary disassembly fixture for chains. The chain includes multiple links, with a pin rotatably connecting adjacent links. Using this auxiliary disassembly fixture, tools such as hammers and presses are used to knock out the pins, thus disassembling the chain. The auxiliary disassembly fixture includes a mounting base 1, a support base 2, and multiple locking teeth 3. The support base 2 is mounted on the mounting base 1, and its outer periphery is arc-shaped. The multiple locking teeth 3 protrude at intervals from the outer periphery of the support base 2, forming a receiving groove 4 between adjacent locking teeth 3. The multiple links of the chain are respectively engaged with the multiple locking teeth 3, and the pins between adjacent links are located within the corresponding receiving grooves 4.

[0037] When disassembling the chain, firstly, the mounting base 1 needs to be fixed on a fixed working surface to secure this auxiliary disassembly tool. For example, the mounting base 1 can be fixed to a workbench, the ground, or an equipment frame. Then, place the target pin to be disassembled into a suitable receiving groove 4, and engage the corresponding two chain links onto the locking teeth 3. To ensure the chain is stably engaged on this auxiliary disassembly tool, engage the other chain links onto the corresponding locking teeth 3 as well, so that the chain is stably secured to the support base 2. After the chain is secured to the support base 2, use tools such as a hammer or press to strike or apply pressure to the pin, causing the pin to be pushed out of the chain link, completing the disassembly of two adjacent chain links.

[0038] This auxiliary disassembly fixture, through the locking teeth 3 and the receiving groove 4, serves to fix the chain and position the pin, preventing the chain from shifting during disassembly. This ensures the pin remains aligned with the disassembly station, allowing it to be accurately knocked out and preventing damage to chain links or the pin due to inaccurate positioning. Disassembly of the chain does not require manual fixing; it can be completed by a single person, saving labor costs, reducing labor intensity, improving disassembly efficiency, and lowering the risk of scratches from manually pulling the chain, thus ensuring high safety.

[0039] Furthermore, this auxiliary disassembly tool can be installed on different working surfaces via the mounting base 1, allowing it to be positioned appropriately according to operating habits, reducing bending over, tiptoeing, and other operating postures, thus lowering labor intensity. The mounting base 1 makes it easy to install and disassemble the auxiliary disassembly tool, facilitating its carrying and movement. Moreover, by fixing the auxiliary disassembly tool to the working surface via the mounting base 1, it is ensured that the auxiliary disassembly tool will not shake due to external forces when the pin is struck, thus improving the stability of the disassembly process.

[0040] In this embodiment, as Figure 1 As shown, the mounting base 1 has multiple mounting holes 11. The auxiliary disassembly tool for the chain also includes multiple locking elements. The locking elements pass through the mounting holes 11 and the aforementioned working plane to fix the mounting base 1 to the working plane. By fixing the mounting base 1 to the working plane with multiple locking elements, the force can be distributed, reducing the risk of damage caused by single-point force.

[0041] Optionally, the locking element can be a bolt, screw, etc., and this embodiment does not limit this.

[0042] Optionally, the outer surface of the tooth 3 is provided with a wear-resistant layer. During the chain disassembly process, friction occurs between the chain link and the tooth 3. By providing a wear-resistant layer on the outer surface of the tooth 3, the service life of the tooth 3 can be significantly extended, thereby improving the service life of this auxiliary disassembly tool and reducing maintenance costs.

[0043] The wear-resistant layer can be formed on the outer surface of the tooth 3 using plasma welding, specifically by uniformly feeding the wear-resistant layer material onto the surface of the tooth 3 using plasma welding equipment, followed by cooling and polishing after welding. Alternatively, a laser cladding process can be used, where the wear-resistant layer material is uniformly clad onto the surface of the tooth 3 using laser cladding equipment, followed by heat treatment after cladding. Another method is coating spraying, where the wear-resistant layer material is sprayed onto the surface of the tooth 3 using thermal spraying equipment, followed by curing after spraying. It should be noted that the specific implementation method is not limited in this embodiment; commonly used methods in the prior art can be employed.

[0044] Optionally, the wear-resistant layer is made of chromium carbide. Chromium carbide has high hardness, good wear resistance, good corrosion resistance, and high toughness. During chain disassembly, tools such as hammers or presses will vibrate the locking teeth 3 when striking the pin. The wear-resistant layer made of chromium carbide can effectively absorb the impact force, and the wear-resistant layer made of chromium carbide is not easy to peel off or break, thus having good reliability.

[0045] Specifically, when the chain link is engaged with the locking tooth 3, the top surface of the locking tooth 3 is higher than the top surface of the chain link. When the top surface of the locking tooth 3 is higher than the top surface of the chain link, it can effectively restrict the movement of the chain link, enhance the stability of the chain link in the locking tooth 3, and prevent the chain link from easily slipping or loosening from the locking tooth 3 when the chain is subjected to knocking or pulling force during disassembly, thereby improving the accuracy of disassembly and ensuring the stability of the entire disassembly process.

[0046] Optionally, such as Figure 1 As shown, the locking teeth 3 extend away from the support base 2, and the opposite side walls of the locking teeth 3 gradually approach each other. At this time, the locking teeth 3 are narrower at the top and wider at the bottom, which can better guide the chain links to smoothly engage with the locking teeth 3 from top to bottom, and facilitate the positioning and engagement of the chain links.

[0047] Optionally, such as Figure 1 As shown, there are multiple support seats 2, which are spaced apart on the mounting base 1. The distance between two adjacent teeth 3 on each support seat 2 is x, and the value of x is different for each of the multiple support seats 2. Since the pitch of chain links varies for different specifications of chains, by setting multiple support seats 2 and making the distance x between two adjacent teeth 3 on each support seat 2 different, this auxiliary disassembly fixture can adapt to the disassembly of chains of different specifications, improving the versatility of the auxiliary disassembly fixture and reducing the time wasted due to adjusting the fixture, thus improving disassembly efficiency.

[0048] In one optional embodiment, the support base 2 is welded to the mounting base 1. Welding is a high-strength connection method that can firmly fix the support base 2 to the mounting base 1, effectively preventing the support base 2 from loosening or shifting during use. In scenarios such as chain disassembly that require frequent hammering, welding can ensure that the connection between the support base 2 and the mounting base 1 will not fail due to impact, thereby improving the reliability of this auxiliary disassembly tool.

[0049] Optionally, such as Figure 2 As shown, the support base 2 includes a reinforcing part 21 and a wear-resistant part 22. The reinforcing part 21 is disposed on the mounting base 1, and the locking teeth 3 protrude from the wear-resistant part 22. The reinforcing part 21 is made of carbon steel, and the wear-resistant part 22 is made of chromium carbide. The carbon steel reinforcing part 21 provides strong support for the entire support base 2, ensuring that the support base 2 will not deform or be damaged by external forces during use. The wear-resistant part 22 is close to the locking teeth 3 and will come into contact with the chain. By setting the wear-resistant part 22 made of chromium carbide, the wear rate of the support base 2 can be reduced. By dividing the support base 2 into a reinforcing part 21 and a wear-resistant part 22, and using carbon steel and chromium carbide respectively, the material usage is optimized. Carbon steel is relatively cheaper than chromium carbide, and by using chromium carbide only in the parts that require wear resistance, the cost can be effectively reduced.

[0050] In one alternative embodiment, such as Figure 2 As shown, the support base 2 also includes a connecting portion 23, which is disposed between the reinforcing portion 21 and the wear-resistant portion 22. Multiple reinforcing ribs 24, made of carbon steel, are spaced apart inside the connecting portion 23. The connecting portion 23, located between the reinforcing portion 21 and the wear-resistant portion 22, serves as a transition and connection. The multiple reinforcing ribs 24 effectively disperse stress and enhance the load-bearing capacity of the connecting portion 23. The reinforcing ribs 24 significantly improve the bending strength of the connecting portion 23, reducing bending deformation caused by external forces and ensuring the overall structural stability of the support base 2. The reinforcing ribs 24 effectively resist shear forces, reducing damage to the connecting portion 23 caused by shear stress generated when the chain is struck or pulled.

[0051] 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. An auxiliary disassembling tool for a chain, the chain comprising a plurality of chain links, a pin being rotatably connected between two adjacent chain links, characterized in that, The auxiliary disassembly fixture for the chain includes: Mounting base (1); The support base (2) and multiple teeth (3) are provided on the mounting base (1). The outer periphery of the support base (2) is arc-shaped. Multiple teeth (3) are spaced out and protrude from the outer periphery of the support base (2). A receiving groove (4) is formed between two adjacent teeth (3). Multiple links of the chain are respectively engaged with multiple teeth (3). The pin between two adjacent links is located in the corresponding receiving groove (4).

2. The auxiliary disassembly fixture for chains according to claim 1, characterized in that, The outer surface of the tooth (3) is provided with a wear-resistant layer.

3. The auxiliary disassembly fixture for chains according to claim 2, characterized in that, The wear-resistant layer is made of chromium carbide.

4. The auxiliary disassembly fixture for chains according to claim 1, characterized in that, When the chain link is engaged with the locking tooth (3), the top surface of the locking tooth (3) is higher than the top surface of the chain link.

5. The auxiliary disassembly fixture for chains according to claim 1, characterized in that, Along the direction extending away from the support base (2) along the tooth (3), the opposite side walls of the tooth (3) gradually approach each other.

6. The auxiliary disassembly fixture for chains according to claim 1, characterized in that, The number of the support bases (2) is multiple, and the multiple support bases (2) are spaced apart on the mounting base (1). The distance between two adjacent teeth (3) on the support base (2) is x, and the value of x is different for the multiple support bases (2).

7. The auxiliary disassembly fixture for chains according to claim 1, characterized in that, The support base (2) is welded and fixed to the mounting base (1).

8. The auxiliary disassembly fixture for chains according to claim 1, characterized in that, The mounting base (1) has multiple mounting holes (11) through it. The auxiliary disassembly tool for the chain also includes multiple locking members. The locking members pass through the mounting holes (11) and the working plane to fix the mounting base (1) on the working plane.

9. The auxiliary disassembly fixture for chains according to any one of claims 1-8, characterized in that, The support base (2) includes a reinforcing part (21) and a wear-resistant part (22). The reinforcing part (21) is disposed on the mounting base (1), and the locking teeth (3) protrude from the wear-resistant part (22). The reinforcing part (21) is made of carbon steel, and the wear-resistant part (22) is made of chromium carbide.

10. The auxiliary disassembly fixture for chains according to claim 9, characterized in that, The support base (2) also includes a connecting part (23), which is disposed between the reinforcing part (21) and the wear-resistant part (22). The connecting part (23) is provided with a plurality of reinforcing ribs (24) at intervals inside, and the reinforcing ribs (24) are made of carbon steel.

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