Thrust bearing dismounting tool

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By designing a thrust bearing disassembly tool, the thrust bearing can be efficiently and safely disassembled and installed outside the cold rolling mill, solving the problem of inconvenient thrust bearing replacement in stainless steel cold rolling mills and improving production efficiency and safety.

CN223383422UActive Publication Date: 2025-09-26TIANJIN TISCO & TPCO STAINLESS STEEL CO LTD

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Patent Information

Application Number: CN202422530168.5
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-10-19
Publication Date: 2025-09-26
Estimated Expiration: 2034-10-19

AI Technical Summary

Technical Problem

Replacing thrust bearings inside stainless steel cold rolling mills is inconvenient, tedious, and time-consuming, posing safety risks to operators and the risk of debris falling into the roll gap, reducing production efficiency.

Method used

A thrust bearing disassembly tool is designed, which includes a disassembly wrench, a guide assembly, a hook assembly and a receiving assembly. The thrust bearing base screws are disassembled and installed outside the cold rolling mill through the extension rod and the guide assembly. The thrust bearing is removed as a whole using the hook assembly, and the debris is collected by the receiving assembly to prevent the debris from falling into the roll gap.

Benefits of technology

The efficiency and safety of thrust bearing replacement are improved, labor intensity is reduced, the phenomenon of slag falling into the roll gap is reduced, and the working efficiency of the cold rolling mill is improved.

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Abstract

The thrust bearing dismounting tool comprises a dismounting wrench, a guide assembly, a hooking assembly and a containing assembly, the dismounting wrench comprises a lengthening rod, a handle arranged at one end of the lengthening rod and a dismounting part arranged at the other end of the lengthening rod, and the dismounting part is used for dismounting a screw on a thrust bearing base; the lengthening rod is used for extending into a roller system from the side away from an internal thrust bearing, the dismounting wrench is used for dismounting the thrust bearing base outside a cold rolling mill by an operator, the guide assembly is in threaded connection with a threaded hole in the thrust bearing base, and the guide assembly is used for guiding the thrust bearing base in the taking-out or mounting process. The hooking assembly is used for taking out the thrust bearing base, the containing assembly is arranged below the thrust bearing base, and the containing assembly is used for containing disintegrating slag in the replacement process. The thrust bearing can be replaced outside the cold rolling mill, operation is easy and convenient, the replacement efficiency of the thrust bearing is improved, and therefore the working efficiency of the cold rolling mill is improved.

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Description

Technical Field

[0001] The present application relates to the field of cold rolling mill disassembly technology, and in particular to a thrust bearing disassembly tool. Background Art

[0002] Stainless steel cold rolling mills are widely used in the production of stainless steel plates and strips. They meet the needs of different industries for stainless steel products by precisely controlling the thickness, width and surface quality of stainless steel plates and strips.

[0003] Replacing thrust bearings in a stainless steel cold rolling mill requires the complete removal of both intermediate rolls. The operator then has to drill into the roller system to replace the bearings. The cramped space within the roller system makes it difficult for operators to maneuver, which increases the time required for thrust bearing replacement and creates the risk of injury. When replacing a broken thrust bearing, the debris can fall into the gap between the support rolls below, requiring the two rear support rolls to be removed and cleaned with oil, further increasing the time required to replace the thrust bearings.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the replacement process of the thrust bearing inside the stainless steel cold rolling mill is inconvenient and cumbersome to operate, and the replacement time is long, which reduces the production efficiency of the stainless steel cold rolling mill. Utility Model Content

[0005] In order to solve the above technical problems, the present application provides a thrust bearing disassembly tool.

[0006] The present application provides a thrust bearing disassembly tool, which adopts the following technical solution:

[0007] A thrust bearing disassembly tool comprises a disassembly wrench, a guide assembly, a hook assembly and a receiving assembly, the disassembly wrench comprises an extension rod, a handle arranged at one end of the extension rod and a disassembly portion arranged at the other end of the extension rod, the disassembly portion is used to disassemble the screws on the thrust bearing base, the extension rod is used to extend into the roller system from the side away from the internal thrust bearing, the disassembly wrench is used by an operator to disassemble the thrust bearing base outside the cold rolling mill, the guide assembly is threadedly connected to the threaded hole on the thrust bearing base, the guide assembly is used to guide the removal or installation process of the thrust bearing base, the hook assembly is used to remove the thrust bearing base, the receiving assembly is arranged below the thrust bearing base, and the receiving assembly is used to receive debris during the replacement process.

[0008] By adopting the above technical solution, the extension rod and the disassembly unit are extended into the roll train. The disassembly unit removes some screws from the thrust bearing base, then threadably connects the guide assembly to the threaded holes in the thrust bearing base. The remaining screws are then removed using the disassembly unit, and the thrust bearing base and thrust bearing are removed together using the hook assembly. The thrust bearing can then be replaced outside the cold rolling mill. After replacement, the thrust bearing base and thrust bearing are pushed into the cold rolling mill using the guide rod. The screws on the thrust bearing base are then reinstalled using the disassembly unit, and the guide assembly is removed. By replacing the thrust bearing outside the cold rolling mill, only one intermediate roll needs to be removed to remove the thrust bearing base, eliminating the need for operators to drill into the roll train. This reduces labor intensity, improves safety, and increases the efficiency of thrust bearing replacement, thereby enhancing the operating efficiency of the cold rolling mill. The receiving assembly is used to receive debris during the removal of the thrust bearing base, preventing debris from falling into the roll gap below. This further improves the efficiency of thrust bearing replacement and the operating efficiency of the cold rolling mill.

[0009] Preferably, the guide assembly includes multiple guide rods, each of which is provided with a connecting screw at one end, the connecting screw being used for threaded connection with the threaded hole on the thrust bearing base, and the guide rod extending into the roller system from the side away from the internal thrust bearing.

[0010] By adopting the above technical solution, the guide rod is threadedly connected to the threaded hole on the thrust bearing base through the connecting screw, thereby playing a guiding role in the process of removing and installing the thrust bearing base.

[0011] Preferably, the hooking assembly includes a mounting rod and a connecting hook provided at one end of the mounting rod, and the connecting hook is hung on the thrust bearing base for removing the thrust bearing base from the roller system.

[0012] By adopting the above technical solution, after the disassembly part removes all the screws on the thrust bearing base, the mounting rod and the connecting hook are extended into the roller system, the connecting hook is hung on the thrust bearing base, and the thrust bearing base is removed from the cold rolling mill by pulling the mounting rod, thereby facilitating the replacement of the thrust bearing outside the cold rolling mill.

[0013] Preferably, the receiving assembly comprises a receiving plate mounted on the support roller, and the receiving plate extends into the roller system from a side away from the internal thrust bearing.

[0014] By adopting the above technical solution, the receiving plate is placed on the support roller to receive the debris dropped from the thrust bearing, thereby reducing the phenomenon of the debris falling into the roller gap below.

[0015] Preferably, four side panels are provided on the side wall of the receiving plate, and the four side panels are respectively connected to the four side walls of the receiving plate.

[0016] By adopting the above technical solution, the side plates block the slag on the receiving plate, thereby improving the receiving effect of the receiving plate and further reducing the phenomenon of slag falling into the roller gap below.

[0017] Preferably, a limiting assembly is provided on the guide rod, and the limiting assembly is used to connect adjacent guide rods, and the guide rod is rotatably connected to the limiting assembly.

[0018] By adopting the above technical solution, the limiting assembly limits the distance between adjacent guide rods, which facilitates the quick connection between the guide rods and the thrust bearing base, thereby improving the disassembly efficiency of the thrust bearing.

[0019] Preferably, the limiting assembly includes a telescopically adjustable connecting member and two connecting rings, and the connecting rings are respectively arranged at both ends of the connecting member.

[0020] By adopting the above technical solution, the telescopically adjustable connecting piece can adjust the distance between the two guide rods, thereby improving the flexibility and adaptability of the limiting assembly.

[0021] Preferably, the connecting member includes a fixed tube, an adjusting screw threadedly connected to the fixed tube, a limiting rod arranged on the fixed tube and a mounting plate rotatably connected to the adjusting screw, the limiting rod passes through the mounting plate and is slidingly connected to the mounting plate, one connecting ring is connected to the mounting plate, and the other connecting ring is arranged at one end of the fixed tube away from the adjusting screw.

[0022] By adopting the above technical solution, the distance between the two connecting rings can be adjusted by rotating the adjusting screw, and the limiting rod limits the mounting plate, thereby making the process of adjusting the distance between the connecting rings simple and convenient, and improving the adjustment efficiency.

[0023] In summary, this application has the following beneficial technical effects:

[0024] 1. This application only requires pulling out one intermediate roller to remove the thrust bearing and the thrust bearing base as a whole from the outside of the cold rolling mill, thereby replacing the thrust bearing outside the cold rolling mill, thereby improving the replacement efficiency of the thrust bearing;

[0025] 2. Operators do not need to drill into the cold rolling mill to perform operations, which reduces the labor intensity of operators and improves their safety;

[0026] 3. The receiving plate intercepts the debris falling from the thrust bearing, thereby reducing the phenomenon of the debris falling into the roller gap below. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1This is a schematic structural diagram of a disassembly wrench provided in an embodiment of the present application;

[0028] Figure 2 is a structural diagram of a guide assembly provided in an embodiment of the present application;

[0029] Figure 3 is a structural diagram of a hook assembly provided in an embodiment of the present application;

[0030] Figure 4 It is a structural diagram of the receiving assembly provided in an embodiment of the present application;

[0031] Figure 5 It is a schematic diagram of a partial cross-sectional structure of the limit assembly and guide rod provided in an embodiment of the present application.

[0032] Explanation of the accompanying symbols: 1. Disassembly wrench; 11. Extension rod; 12. Handle; 13. Disassembly part; 2. Guide assembly; 21. Guide rod; 22. Connecting screw; 3. Hook assembly; 31. Mounting rod; 32. Connecting hook; 4. Receiving assembly; 41. Receiving plate; 42. Side plate; 5. Limiting assembly; 51. Connecting piece; 511. Fixing tube; 512. Adjusting screw; 513. Limiting rod; 514. Mounting plate; 52. Connecting ring. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] An embodiment of the present application discloses a thrust bearing disassembly tool.

[0035] Reference Figure 1 、 Figure 2 and Figure 3 A thrust bearing disassembly tool comprises a disassembly wrench 1, a guide assembly 2 and a hook assembly 3.

[0036] The dismantling wrench 1 comprises an extension rod 11, a handle 12 welded to one end of the extension rod 11, and a dismantling portion 13 at the other end. The dismantling portion 13 is a T-shaped structure welded to the extension rod 11. The dismantling portion 13 is used to remove screws from the thrust bearing base. The extension rod 11 is used to extend into the roller system from the side away from the internal thrust bearing. The dismantling wrench 1 is used by operators to remove the thrust bearing base from outside the cold rolling mill.

[0037] The guide assembly 2 is threadedly connected to the threaded holes in the thrust bearing base. It serves as a guide during the removal or installation of the thrust bearing base. It includes two guide rods 21, each with a connecting screw 22 welded to one end. These screws 22 are threadedly connected to the threaded holes in the thrust bearing base. The guide rods 21 extend into the roller system from the side away from the internal thrust bearing.

[0038] The hook assembly 3 is used to remove the thrust bearing base. The hook assembly 3 includes a mounting rod 31 and a connecting hook 32 provided at one end of the mounting rod 31. The connecting hook 32 is hung on the thrust bearing base and is used to remove the thrust bearing base from the roller system.

[0039] Reference Figure 4 The thrust bearing removal tool also includes a receiving assembly 4. This assembly is located beneath the thrust bearing base and is used to collect debris during the replacement process. The receiving assembly 4 includes a receiving plate 41 mounted on the support roller. This plate extends into the roller system from the side away from the internal thrust bearing. Four side panels 42 are welded to the sidewalls of the receiving plate 41, each connected to the four sidewalls of the receiving plate 41.

[0040] Reference Figure 5 The guide rod 21 is provided with a limit assembly 5, which is used to connect adjacent guide rods 21. The guide rods 21 are rotatably connected to the limit assembly 5. The limit assembly 5 includes a telescopically adjustable connecting member 51 and two connecting rings 52, which are respectively provided at both ends of the connecting member 51.

[0041] The connector 51 includes a fixed tube 511, an adjustment screw 512 threadedly connected to the fixed tube 511, a limiting rod 513 disposed on the fixed tube 511, and a mounting plate 514 rotatably connected to the adjustment screw 512. The limiting rod 513 passes through the mounting plate 514 and is slidably connected to the mounting plate 514. A connecting ring 52 is fixedly connected to the mounting plate 514, and another connecting ring 52 is fixedly disposed on the end of the fixed tube 511 away from the adjustment screw 512. The guide rods 21 pass through the connecting ring 52. The connector 51 is used to limit the distance between the two guide rods 21, thereby facilitating quick positioning of the guide rods 21, improving the connection efficiency of the guide rods 21, and thereby improving the efficiency of disassembly of the thrust bearing.

[0042] The thrust bearing removal tool of the present invention is implemented as follows: a disassembly wrench 1 is inserted into the roller system from the side of the cold rolling mill away from the internal thrust bearing. The disassembly wrench 1 removes two screws from the thrust bearing base via the disassembly portion 13. Then, two guide rods 21 are inserted into the roller system and threadedly connected to the thrust bearing base via the connecting screw 22. The disassembly wrench 1 is then used to remove the remaining screws from the thrust bearing base. Finally, the connecting hook 32 is hooked onto the thrust bearing base. The thrust bearing base and the thrust bearing are removed from the cold rolling mill via the mounting rod 31. The thrust bearing is replaced outside the cold rolling mill. After replacement, the thrust bearing base and the replaced thrust bearing are pushed into the cold rolling mill via the guide rod 21. The screws are then installed into the thrust bearing base using the disassembly wrench 1. The guide rods 21 and connecting screw 22 are then removed. The remaining screws are then installed to complete the thrust bearing replacement. By replacing the thrust bearing outside the cold rolling mill, the risk of collisions for operators is reduced. Furthermore, only one intermediate roll needs to be disassembled to remove the thrust bearing base, improving the efficiency of thrust bearing replacement and, in turn, the operating efficiency of the cold rolling mill. A catch assembly 4 is used to catch debris dropped during thrust bearing replacement, thereby reducing the risk of debris falling into the gap between the rollers below and further improving thrust bearing replacement efficiency.

[0043] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A thrust bearing removal tool, characterized in that: The invention comprises a disassembly wrench (1), a guide assembly (2), a hook assembly (3) and a receiving assembly (4), wherein the disassembly wrench (1) comprises an extension rod (11), a handle (12) arranged at one end of the extension rod (11) and a disassembly portion (13) arranged at the other end of the extension rod (11), wherein the disassembly portion (13) is used to disassemble the screws on the thrust bearing base, the extension rod (11) is used to extend into the roller system from the side away from the internal thrust bearing, the disassembly wrench (1) is used by an operator to disassemble the thrust bearing base outside the cold rolling mill, the guide assembly (2) is threadedly connected to the threaded hole on the thrust bearing base, the guide assembly (2) is used to guide the removal or installation process of the thrust bearing base, the hook assembly (3) is used to remove the thrust bearing base, the receiving assembly (4) is arranged below the thrust bearing base, and the receiving assembly (4) is used to receive debris during the replacement process.

2. A thrust bearing removal tool according to claim 1, characterized in that: The guide assembly (2) comprises a plurality of guide rods (21), each of the plurality of guide rods (21) being provided with a connecting screw (22) at one end thereof, the connecting screw (22) being used for being threadedly connected to a threaded hole on the thrust bearing base, and the guide rod (21) extending into the roller system from a side away from the internal thrust bearing.

3. The thrust bearing removal tool according to claim 1, characterized in that: The hooking assembly (3) comprises a mounting rod (31) and a connecting hook (32) arranged at one end of the mounting rod (31); the connecting hook (32) is hung on the thrust bearing base and is used to remove the thrust bearing base from the roller system.

4. The thrust bearing removal tool according to claim 1, characterized in that: The receiving assembly (4) comprises a receiving plate (41) mounted on the support roller, and the receiving plate (41) extends into the roller system from a side away from the internal thrust bearing.

5. The thrust bearing removal tool according to claim 4, characterized in that: Four side plates (42) are provided on the side walls of the receiving plate (41), and the four side plates (42) are respectively connected to the four side walls of the receiving plate (41).

6. The thrust bearing removal tool according to claim 2, characterized in that: A limiting assembly (5) is provided on the guide rod (21), and the limiting assembly (5) is used to connect adjacent guide rods (21). The guide rod (21) is rotatably connected to the limiting assembly (5).

7. The thrust bearing removal tool according to claim 6, characterized in that: The limiting assembly (5) comprises a telescopically adjustable connecting member (51) and two connecting rings (52), wherein the connecting rings (52) are respectively arranged at both ends of the connecting member (51).

8. The thrust bearing removal tool according to claim 7, characterized in that: The connecting member (51) includes a fixed tube (511), an adjusting screw (512) threadedly connected to the fixed tube (511), a limiting rod (513) arranged on the fixed tube (511), and a mounting plate (514) rotatably connected to the adjusting screw (512), the limiting rod (513) passing through the mounting plate (514) and being slidably connected to the mounting plate (514), one connecting ring (52) being connected to the mounting plate (514), and another connecting ring (52) being arranged at one end of the fixed tube (511) away from the adjusting screw (512).