Single-motor transmission continuous mill rack
By designing the coupling structure of a single-motor driven continuous rolling mill stand, and utilizing tension plates and inclined plane structures to achieve stable connection and quick disassembly of the coupling, the problem of shortened service life of the coupling in harsh environments of the continuous rolling mill is solved, thereby improving the stability and working efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XUZHOU NEW DONGDIAN ELECTROTECHNICAL MASCH CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-24
AI Technical Summary
In the harsh environment of high temperature, high pressure and metal debris contamination, the service life of the coupling in a continuous rolling mill is shortened, leading to equipment instability and affecting the working efficiency of the continuous rolling mill.
Design a single-motor driven continuous rolling mill stand, using a coupling composed of a left fixed sleeve, a right fixed sleeve, and a connecting block. Stable connection is achieved through tensioning plates and inclined plane structure, and fastened with bolts, facilitating quick disassembly and installation.
It improves the connection stability and disassembly efficiency of the coupling, extends the service life of the coupling, and enhances the working efficiency of the continuous rolling mill.
Smart Images
Figure CN224157520U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of continuous rolling mill technology, specifically a single-motor driven continuous rolling mill frame. Background Technology
[0002] Continuous rolling mills are key equipment in the metallurgical industry used for the continuous rolling of metal sheets. The rolling process requires high temperatures, with the ambient temperature around the continuous rolling mill reaching 50°C to 80°C. The continuous rolling mill faces a high-temperature environment, and the rolling force can reach hundreds to thousands of tons, resulting in strong vibration of the equipment foundation. The continuous rolling mill is also subject to contamination by metal debris, and cooling water, rolling oil mist, and acidic / alkaline cleaning agents can easily cause corrosion. The continuous rolling mill faces a harsh working environment, which greatly reduces the service life of the couplings. To ensure the stable operation of the rolling mill, the couplings need to be lifted and replaced. At the same time, the vibration generated by the continuous rolling mill operation affects the stability of the coupling connection.
[0003] Therefore, we propose a single-motor driven continuous rolling mill stand. Utility Model Content
[0004] The purpose of this utility model is to provide a single-motor driven continuous rolling mill stand to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a single-motor driven continuous rolling mill frame, comprising a motor, a coupling, a reduction gearbox, a mill head, rolling rolls, a tapered tensioning wheel, and an eccentric sleeve. The coupling includes a left fixed sleeve, a connecting block, and a right fixed sleeve. The connecting block has through holes at its upper and lower parts, and a tensioning plate is disposed within the through holes. A positioning block is disposed on the left side of the connecting block, and a positioning hole is disposed on the right side of the left fixed sleeve. The left half of the inner wall of the left fixed sleeve is configured as a first inclined surface, and both ends of the tensioning plate are configured as second inclined surfaces. The left fixed sleeve has a threaded hole, the connecting block has a first through hole, and the right fixed sleeve has a second through hole, with a bolt disposed within the second through hole.
[0006] Preferably, a guide groove is provided on the inner wall of the through hole, and a guide block is provided on the tensioning plate.
[0007] Preferably, the left side of the right fixing sleeve is also provided with a positioning hole, and the right side of the connecting block is provided with a positioning block.
[0008] Preferably, the surface of the tensioning plate that contacts the shaft is set to be arc-shaped.
[0009] Preferably, the bolt passes through the second through hole and the first through hole and connects to the threaded hole.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] 1. Tighten the bolts to secure the left and right fixed sleeves. During the tightening process, the positioning block engages the positioning hole, making the connection between the left and right fixed sleeves and the connecting block more secure. At the same time, during the fixing process, the second inclined surface on the tensioning plate and the first inclined surface press against each other, making the connection between the left and right fixed sleeves and the shaft tighter and making the coupling work more stably.
[0012] 2. When disassembling the coupling, loosen the bolts, remove the bolts, move the left and right fixed sleeves, first disassemble the connecting block, then disassemble the left and right fixed sleeves, and quickly disassemble the coupling, thereby enabling rapid replacement of the coupling and improving the working efficiency of the continuous rolling mill. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the coupling structure of this utility model;
[0015] Figure 3 This is a schematic diagram of the installation structure of the coupling of this utility model;
[0016] Figure 4 This is a schematic diagram of the tensioner installation structure of this utility model;
[0017] Figure 5 This is an enlarged view of section A of this utility model;
[0018] Figure 6 This is a left view of the connecting block of this utility model.
[0019] In the diagram: 1. Motor; 2. Coupling; 3. Gearbox; 4. Machine head; 5. Roll; 6. Tapered tensioner; 7. Eccentric sleeve; 8. Left fixed sleeve; 9. Connecting block; 10. Right fixed sleeve; 11. Through hole; 12. Tensioner plate; 13. Positioning block; 14. Positioning hole; 15. First inclined surface; 16. Second inclined surface; 17. Threaded hole; 18. First through hole; 19. Second through hole; 20. Bolt; 21. Guide groove; 22. Guide block. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-6 This utility model provides a technical solution: a single-motor driven continuous rolling mill frame, including a motor 1, a coupling 2, a reduction gearbox 3, a mill head 4, rolling mill rolls 5, a conical tensioning wheel 6, and an eccentric sleeve 7. The coupling 2 includes a left fixed sleeve 8, a connecting block 9, and a right fixed sleeve 10. The connecting block 9 has through holes 11 at both the upper and lower parts, and tensioning plates 12 are installed in the through holes 11. A positioning block 13 is provided on the left side of the connecting block 9, and a positioning hole 14 is provided on the right side of the left fixed sleeve 8. The left half of the inner wall of the left fixed sleeve 8 is set as a first inclined surface 15, and the two ends of the tensioning plate 12 are set as second inclined surfaces. Surface 16, the left fixed sleeve 8 is provided with a threaded hole 17, the connecting block 9 is provided with a first through hole 18, and the right fixed sleeve 10 is provided with a second through hole 19. A bolt 20 is provided in the second through hole 19. The coupling 2 is installed so that the left fixed sleeve 8 and the right fixed sleeve 10 pass through the gap between the two shafts to be connected and are fitted onto the shafts. The left fixed sleeve 8 and the right fixed sleeve 10 are moved so that the distance between the left fixed sleeve 8 and the right fixed sleeve 10 is greater than the length of the tensioning plate 12. The connecting block 9 is moved so that the connecting block 9 is installed between the two shafts. The connecting block 9 is rotated so that the tensioning plate 12 is rotated. 2. The second inclined surface 16 at both ends is aligned with the first inclined surface 15, and the positioning block 13 and the positioning hole 14 are aligned. The left fixing sleeve 8 and the right fixing sleeve 9 are moved so that the tensioning plate 12 is installed into the left fixing sleeve 8 and the right fixing sleeve 10. The bolt 20 is passed through the second through hole 19 and the first through hole 18 and connected to the threaded hole 17, and the bolt 20 is tightened to secure the left fixing sleeve 8 and the right fixing sleeve 10. During the tightening process of the left fixing sleeve 8 and the right fixing sleeve 10, the positioning block 13 is stuck in the positioning hole, making the connection between the left fixing sleeve 8 and the right fixing sleeve 10 and the connecting block 9 more secure. At the same time, the left... During the fixing process of the fixed sleeve 8 and the right fixed sleeve 10, the second inclined surface 16 and the first inclined surface 15 on the tensioning plate 12 are pressed against each other, making the left fixed sleeve 8 and the right fixed sleeve 10 tightly connected to the shaft, making the coupling 2 work more stably. When the coupling 2 is disassembled, the bolt 20 is loosened and removed. The left fixed sleeve 8 and the right fixed sleeve 10 are moved. The connecting block 9 is disassembled first, and then the left fixed sleeve 8 and the right fixed sleeve 10 are disassembled. The coupling 2 is quickly disassembled, so that the coupling 2 can be quickly replaced, improving the working efficiency of the continuous rolling mill.
[0022] Reference embodiment: A guide groove 21 is provided on the inner wall of the through hole 11, and a guide block 22 is provided on the tensioning plate 12. The tensioning plate 12 moves up and down in the through hole 11, so that the tensioning plates 12 provided on the upper and lower parts of the connecting block 9 can move, so that the distance between the two sets of tensioning plates 12 is greater than the diameter of the shaft, which facilitates the installation of the connecting block 9. The tensioning plate 12 is guided by the guide block 22. The tensioning plate 12 can only move up and down, and cannot move left and right.
[0023] Reference embodiment: The right fixing sleeve 10 is also provided with a positioning hole 14 on the left side, and the connecting block 9 is provided with a positioning block 13 on the right side. During the installation of the left fixing sleeve 8 and the right fixing sleeve 10, the positioning block 13 provided on the connecting block 9 is installed into the positioning hole 14, and the left fixing sleeve 8 and the right fixing sleeve 10 are more firmly connected to the connecting block 9.
[0024] Reference embodiment: The surface of the tensioning plate 12 that contacts the shaft is set to be arc-shaped to increase the contact area between the tensioning plate 12 and the shaft. By cooperating with the left fixed sleeve 8 and the right fixed sleeve 10, the shaft is firmly connected. The bolt 20 passes through the second through hole 19 and the first through hole 18 and connects to the threaded hole 17. Tightening the bolt 20 fixes the left fixed sleeve 8 and the right fixed sleeve 10.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A single-motor driven continuous rolling mill stand, comprising a motor (1), a coupling (2), a reduction gearbox (3), a mill head (4), rolling rolls (5), a tapered tensioner (6), and an eccentric sleeve (7), characterized in that: The coupling (2) includes a left fixed sleeve (8), a connecting block (9), and a right fixed sleeve (10). The connecting block (9) has through holes (11) at its upper and lower parts. A tensioning plate (12) is provided in the through hole (11). A positioning block (13) is provided on the left side of the connecting block (9). A positioning hole (14) is provided on the right side of the left fixed sleeve (8). The left half of the inner wall of the left fixed sleeve (8) is set as a first inclined surface (15). The two ends of the tensioning plate (12) are set as second inclined surfaces (16). A threaded hole (17) is provided on the left fixed sleeve (8). A first through hole (18) is provided on the connecting block (9). A second through hole (19) is provided on the right fixed sleeve (10). A bolt (20) is provided in the second through hole (19).
2. A single motor driven rolling mill stand according to claim 1, characterized in that: A guide groove (21) is provided on the inner wall of the through hole (11), and a guide block (22) is provided on the tensioning plate (12).
3. A single motor driven rolling mill stand according to claim 1, characterized in that: The right fixing sleeve (10) is also provided with a positioning hole (14) on the left side, and the connecting block (9) is provided with a positioning block (13) on the right side.
4. A single motor driven rolling mill stand according to claim 1, characterized in that: The surface of the tensioning plate (12) that contacts the shaft is set to be arc-shaped.
5. A single motor driven rolling mill stand according to claim 1, characterized in that: The bolt (20) passes through the second through hole (19) and the first through hole (18) and connects to the threaded hole (17).