An auxiliary positioning platform for roll chock assembly
By introducing clamping and positioning components and lifting and adjusting components into the roll bearing housing assembly platform, the problem of rapid wear of the limiting pads during the assembly and disassembly of the bearing housing was solved, extending the service life of the platform and improving its adaptability to different rolls.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TANGSHAN ZHONGJUDAFU MACHINERY EQUIPMENT MANUFACTURING CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-26
AI Technical Summary
The existing auxiliary positioning platform for rolling mill bearing housing assembly lacks a positioning and protection mechanism during the assembly and disassembly of the bearing housing, which leads to rapid wear of the flexible limiting pad and reduces the service life of the platform.
An auxiliary positioning platform including a clamping and positioning component and a lifting and adjusting component was designed. The flexible limiting pad is clamped and the lifting and adjusting is realized by a motor-driven positive and negative screw system, which enhances the positioning effect of the roll and reduces the stress consumption of the flexible limiting pad.
By designing clamping and positioning components and lifting and adjusting components, the service life of the flexible limiting pad is extended, the flexibility and practicality of the platform are improved, and it can adapt to the clamping needs of rolls of different diameters.
Smart Images

Figure CN224407371U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of auxiliary positioning platform technology, and more specifically, to an auxiliary positioning platform for assembling roll bearing housings. Background Technology
[0002] Among all components of a rolling mill, the rolls are a crucial part. Before and after rolling mill grinding, the bearing housings on the rolls need to be disassembled and reassembled. During this process, the roll surface is used as a support point and is subjected to radial and axial disassembly forces. Therefore, the roll surface needs to be strictly protected to prevent the roll from rolling or sliding and damaging the roll surface. If the roll bearing housing is not properly positioned during assembly, resulting in damage to the roll surface, it will shorten the roll's life and cause defects on the roll surface to transfer to the steel coil surface, leading to steel coil quality accidents.
[0003] To address the aforementioned issues, patent CN218925679U discloses an auxiliary positioning platform for assembling roll bearing housings. By limiting the placement of multiple rolls during roll bearing housing assembly, it provides anti-rolling and anti-slip effects for the rolls. Furthermore, it features a simple structure, low cost, and ease of operation, making it suitable for batch roll bearing housing assembly operations.
[0004] However, it still has some shortcomings in actual use. For example, the above-mentioned auxiliary positioning platform only prevents the roll from rolling or sliding by two flexible limiting pads on the base body. Its side lacks a positioning protection mechanism, which leads to greater force on the bottom of the roll bearing housing during disassembly and assembly, resulting in faster wear and consumption of the flexible limiting pads. This greatly reduces the service life of the auxiliary positioning platform to a certain extent. In order to solve the shortcomings of the existing technology, we propose an auxiliary positioning platform for the assembly of roll bearing housing. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides an auxiliary positioning platform for the assembly of roll bearing housings. This solves the problem that the above-mentioned auxiliary positioning platform only prevents the roll from rolling or sliding by two flexible limiting pads on the base body, and lacks a positioning protection mechanism on its side, resulting in greater stress on its bottom and faster wear and consumption of the flexible limiting pads, which greatly reduces the service life of the auxiliary positioning platform to a certain extent.
[0006] To solve the above technical problems, the present invention provides the following technical solution: an auxiliary positioning platform for assembling a roll bearing seat, comprising a base, a clamping and positioning component provided on the inner side of the base, and a lifting and adjusting component provided on the inner side of the clamping and positioning component;
[0007] The clamping and positioning assembly includes a first motor, a positive and negative lead screw is fixedly installed on the outer surface of the output end of the first motor, an H-shaped connecting block is symmetrically threaded on the outer surface of the positive and negative lead screw, a first connecting rod is symmetrically threaded on the inner surface of the H-shaped connecting block, a U-shaped block is rotatably connected to one end of the first connecting rod, a gantry frame is fixedly installed on one outer surface of the U-shaped block, a first flexible limiting pad is attached to one outer surface of the gantry frame, a support plate is fixedly installed on the upper outer surface of the base, and a second flexible limiting pad is fixedly installed on the upper outer surface of the support plate.
[0008] The first motor is fixedly installed on the outer surface of one side of the base, the positive and negative lead screw is rotatably connected to the inner wall of the base, and the H-shaped connecting block, the U-shaped block and the gantry frame all slide on the inner surface of the base.
[0009] The lifting and adjusting assembly includes a second motor. A second positive and negative lead screw is fixedly installed on the outer surface of the output end of the second motor. A U-shaped slider is symmetrically threaded onto the outer surface of the second positive and negative lead screw. A second connecting rod is rotatably connected to the inner surface of the U-shaped slider. A U-shaped block is rotatably connected to one end of the second connecting rod. A fixed slider is fixedly installed on one outer surface of the U-shaped block. A sliding rod is slidably installed on the inner wall of the fixed slider. The second motor is fixedly installed on the upper inner wall of the gantry frame. The second positive and negative lead screw is rotatably connected to the inner wall of the gantry frame. The U-shaped slider slides on the upper inner surface of the gantry frame. Both the U-shaped block and the fixed slider slide on one inner surface of the gantry frame. The sliding rod is fixedly installed on one inner wall of the gantry frame. The fixed slider is fixedly installed on one outer surface of the first flexible limiting pad.
[0010] The first flexible limiting pad and the second flexible limiting pad have the same specifications and materials, and the material is rubber.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This utility model, through its clamping and positioning assembly including a first motor, first places the roll on the upper outer surface of the second flexible limiting pad. Then, the first motor is started to drive the positive and negative lead screws to rotate. The rotation of the positive and negative lead screws causes the H-shaped connecting blocks with symmetrical threaded connections on their outer surfaces to slide relative to each other, thereby driving the first connecting rod to rotate. This, in turn, pulls the two gantry frames to move relative to each other, so that the first flexible limiting pad is clamped on the side of the roll. Using the above structure, by starting the first motor to drive the first flexible limiting pad to clamp on the side of the roll, the stress on the bottom second flexible limiting pad is reduced during the installation of the bearing seat. This reduces the consumption of the second and first flexible limiting pads to a certain extent, and greatly improves the service life of the auxiliary positioning platform.
[0013] This invention utilizes a lifting and adjusting assembly, including a second motor. Starting the second motor rotates a second lead screw, which in turn causes two U-shaped sliders, symmetrically threaded on their outer surfaces, to slide relative to each other. This, in turn, rotates a second connecting rod, pulling the second U-shaped block, which in turn causes a fixed slider to slide on the outer wall of the sliding rod. Using this structure, by starting the second motor and raising / lowering the fixed slider, the lifting and adjusting of the first flexible limiting pad is achieved, enabling the clamping of rolls of different diameters and greatly improving the platform's flexibility and practicality. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the clamping and positioning component structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the lifting and adjusting component of this utility model.
[0017] [Figure Labels]
[0018] 1. Base; 2. Clamping and positioning assembly; 3. Lifting and adjusting assembly; 21. First motor; 22. First positive and negative lead screw; 23. H-shaped connecting block; 24. First connecting rod; 25. First U-shaped block; 26. Gantry frame; 27. First flexible limiting pad; 28. Support plate; 29. Second flexible limiting pad; 31. Second motor; 32. Second positive and negative lead screw; 33. U-shaped slider; 34. Second connecting rod; 35. Second U-shaped block; 36. Fixed slider; 37. Slide rod. Detailed Implementation
[0019] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.
[0020] As attached Figure 1 To be continued Figure 3 An embodiment of this utility model provides an auxiliary positioning platform for assembling a roll bearing housing, including a base 1, a clamping and positioning component 2 disposed on the inner side of the base 1, and a lifting and adjusting component 3 disposed on the inner side of the clamping and positioning component 2.
[0021] The clamping and positioning assembly 2 includes a first motor 21. A positive and negative lead screw 22 is fixedly installed on the outer surface of the output end of the first motor 21. An H-shaped connecting block 23 is symmetrically threaded on the outer surface of the positive and negative lead screw 22. A first connecting rod 24 is symmetrically threaded on the inner surface of the H-shaped connecting block 23. A U-shaped block 25 is rotatably connected to one end of the first connecting rod 24. A gantry frame 26 is fixedly installed on one side of the outer surface of the U-shaped block 25. A first flexible limiting pad 27 is attached to one side of the outer surface of the gantry frame 26. A support plate 28 is fixedly installed on the upper outer surface of the base 1. A second flexible limiting pad 29 is fixedly installed on the upper outer surface of the support plate 28.
[0022] Among them, the first motor 21 is fixedly installed on the outer surface of one side of the base 1, the positive and negative lead screw 22 is rotatably connected to the inner wall of the base 1, and the H-shaped connecting block 23, the U-shaped block 25 and the gantry frame 26 all slide on the inner surface of the base 1.
[0023] By starting the first motor 21, the first flexible limiting pad 27 is driven to clamp the side of the roll, which reduces the large force on the bottom second flexible limiting pad 29 during the installation of the bearing seat. This reduces the consumption of the second flexible limiting pad 29 and the first flexible limiting pad 27 to a certain extent, and greatly improves the service life of the auxiliary positioning platform.
[0024] The lifting adjustment component 3 includes a second motor 31. A positive and negative lead screw 32 is fixedly installed on the outer surface of the output end of the second motor 31. A U-shaped slider 33 is symmetrically threaded on the outer surface of the positive and negative lead screw 32. A second connecting rod 34 is rotatably connected to the inner surface of the U-shaped slider 33. A U-shaped block 35 is rotatably connected to one end of the second connecting rod 34. A fixed slider 36 is fixedly installed on one side of the outer surface of the U-shaped block 35. A slide rod 37 is slidably installed on the inner wall of the fixed slider 36. The second motor 31 is fixedly installed on the upper inner wall of the gantry frame 26. The positive and negative lead screw 32 is rotatably connected to the inner wall of the gantry frame 26. The U-shaped slider 33 slides on the upper inner surface of the gantry frame 26. The U-shaped block 35 and the fixed slider 36 both slide on one side of the inner surface of the gantry frame 26. The slide rod 37 is fixedly installed on one side of the inner wall of the gantry frame 26. The fixed slider 36 is fixedly installed on one side of the outer surface of the first flexible limiting pad 27.
[0025] By starting the second motor 31 to drive the fixed slider 36 to rise and fall, the lifting and adjustment of the first flexible limiting pad 27 is realized, enabling the clamping of rolls of different diameters and greatly improving the flexibility and practicality of the platform.
[0026] The first flexible limiting pad 27 and the second flexible limiting pad 29 have the same specifications and materials, and the material is rubber.
[0027] The working process of this utility model is as follows:
[0028] First, the roll is placed on the upper outer surface of the second flexible limiting pad 29. Then, according to the diameter of the roll, the second motor 31 is started to drive the positive and negative lead screws 32 to rotate. The rotation of the positive and negative lead screws 32 causes the two U-shaped sliders 33 connected by symmetrical threads on their outer surfaces to slide relative to each other, thereby driving the second connecting rod 34 to rotate, pulling the U-shaped block 35, and then driving the fixed slider 36 to slide on the outer wall of the slide rod 37, realizing the lifting and lowering adjustment of the first flexible limiting pad 27, so that the first flexible limiting pad 27 can be completely clamped on the outer wall of the roll.
[0029] After adjustment, the first motor 21 is started to drive the positive and negative lead screws 22 to rotate. The rotation of the positive and negative lead screws 22 causes the H-shaped connecting blocks 23 with symmetrical threaded connections on their outer surfaces to slide relative to each other, thereby driving the first connecting rod 24 to rotate, which in turn pulls the two gantry frames 26 to move relative to each other. This causes the first flexible limiting pad 27 to be clamped on the side of the roll, reducing the large force on the bottom second flexible limiting pad 29 during the installation of the bearing seat. This reduces the consumption of the second flexible limiting pad 29 and the first flexible limiting pad 27 to a certain extent, and greatly improves the service life of the auxiliary positioning platform.
[0030] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0031] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An auxiliary positioning platform for assembling roll bearing housings, comprising a base (1), characterized in that, The base (1) is provided with a clamping and positioning component (2) on its inner side, and the clamping and positioning component (2) is provided with a lifting and adjusting component (3) on its inner side. The clamping and positioning assembly (2) includes a first motor (21). A positive and negative lead screw (22) is fixedly installed on the outer surface of the output end of the first motor (21). An H-shaped connecting block (23) is symmetrically threaded on the outer surface of the positive and negative lead screw (22). A first connecting rod (24) is symmetrically threaded on the inner surface of the H-shaped connecting block (23). A U-shaped block (25) is rotatably connected to one end of the first connecting rod (24). A gantry frame (26) is fixedly installed on one side of the outer surface of the U-shaped block (25). A first flexible limiting pad (27) is attached to one side of the outer surface of the gantry frame (26). A support plate (28) is fixedly installed on the upper outer surface of the base (1). A second flexible limiting pad (29) is fixedly installed on the upper outer surface of the support plate (28).
2. The auxiliary positioning platform for assembling roll bearing housings according to claim 1, characterized in that, The first motor (21) is fixedly installed on the outer surface of one side of the base (1), the positive and negative lead screw (22) is rotatably connected to the inner wall of the base (1), and the H-shaped connecting block (23), U-shaped block (25) and gantry (26) slide on the inner surface of the base (1).
3. The auxiliary positioning platform for assembling roll bearing housings according to claim 1, characterized in that, The lifting adjustment assembly (3) includes a second motor (31). A positive and negative lead screw (32) is fixedly installed on the outer surface of the output end of the second motor (31). A U-shaped slider (33) is symmetrically threaded on the outer surface of the positive and negative lead screw (32). A second connecting rod (34) is rotatably connected to the inner surface of the U-shaped slider (33). A U-shaped block (35) is rotatably connected to one end of the second connecting rod (34). A fixed slider (36) is fixedly installed on one outer surface of the U-shaped block (35). The inner wall of the fixed slider (36) is slidably mounted. Equipped with a slide rod (37), the second motor (31) is fixedly installed on the upper inner wall of the gantry frame (26), the positive and negative lead screws (32) are rotatably connected to the inner wall of the gantry frame (26), the U-shaped slider (33) slides on the upper inner surface of the gantry frame (26), the U-shaped block (35) and the fixed slider (36) both slide on one inner surface of the gantry frame (26), the slide rod (37) is fixedly installed on one inner wall of the gantry frame (26), and the fixed slider (36) is fixedly installed on one outer surface of the first flexible limiting pad (27).
4. The auxiliary positioning platform for assembling roll bearing housings according to claim 1, characterized in that, The first flexible limiting pad (27) and the second flexible limiting pad (29) have the same specifications and materials, and the material is rubber.