Surface roughness controllable roller of heavy plate mill

Abstract

The utility model belongs to the technical field of rolling mill machinery, and particularly relates to a surface roughness controllable roller of a heavy plate rolling mill, which comprises two groups of rolling mill memorial archways and two groups of shaft sleeves arranged on the rolling mill memorial archways, a roller I and a roller II are respectively arranged between the two groups of rolling mill memorial archways, and two ends of the roller I and two ends of the roller II are respectively connected with an extension shaft and a driving shaft. And the extension shaft and the driving shaft are respectively inserted into the shaft sleeves on the two groups of rolling mill housings. The two rolling mill memorial archways are installed on the guide plates capable of transversely moving, the variable frequency motor can be started to enable the lead screw to rotate, and therefore the two rolling mill memorial archways can move in the opposite direction or the back direction under the guiding action of threads of the variable frequency motor and the two guide plates; and the extension shafts and the driving shafts on the two sides of the first roller and the second roller are quickly separated from the shaft sleeves on the rolling mill housings, so that the first roller and the second roller on the two groups of rolling mill housings can be quickly disassembled and assembled, the rollers with different roughness can be conveniently and quickly replaced, and the roller replacement efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of rolling mill machinery technology, and in particular to a roll with controllable surface roughness for a thick plate rolling mill. Background Technology

[0002] With the vigorous development of modern industry, industries such as construction, machinery manufacturing, shipbuilding, and energy have an increasing demand for thick steel plates. In the construction industry, high-rise buildings, large stadiums and other structures require a large amount of thick steel plates to ensure the strength and stability of the buildings. The existing thick plate rolling mills can basically meet the daily use needs, but there are still some shortcomings that need to be improved.

[0003] In commercially available heavy plate rolling mills, a transmission device is needed to drive the rolls on the mill and allow the heavy plate to pass back and forth through the rolls to roll the heavy plate. However, in actual use, the surface roughness requirements of heavy plates for different purposes vary greatly, which means that the rolls need to be replaced when processing them. The roll replacement process requires a lot of time, manpower and resources. To address this problem, we propose a surface roughness controllable roll for heavy plate rolling mills. Utility Model Content

[0004] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.

[0005] Specifically, the technical problem to be solved by this utility model is to provide a roll with controllable surface roughness for a thick plate rolling mill, so as to solve the technical problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A surface roughness controllable rolling mill roll includes two sets of mill stands and two sets of bushings mounted on the mill stands. Roll 1 and Roll 2 are respectively arranged between the two sets of mill stands. An extension shaft and a drive shaft are respectively connected to the two ends of Roll 1 and Roll 2. The extension shaft and the drive shaft are respectively inserted into the bushings on the two sets of mill stands. Two sets of guide rails are installed at the bottom of the mill stands. Guide plates are arranged in both sets of guide rails. The top ends of the guide plates are fixed to the bottom of the mill stands. A lead screw is rotatably connected between the two sets of guide rails at the bottom of the mill stands. A variable frequency motor is installed at the end of the lead screw away from the mill stands. The output end of the variable frequency motor is connected to the end of the lead screw. A threaded sleeve is installed in the middle of the bottom of the mill stands. The threaded sleeve is threadedly connected to the lead screw. A conveying mechanism is arranged between the two sets of mill stands.

[0008] As an improved technical solution, the conveying mechanism includes an electric flatbed transport vehicle, a hydraulic lifter, and a support seat. An electric flatbed transport vehicle is set between the two sets of rolling mill stands. A hydraulic lifter is installed at the top center of the electric flatbed transport vehicle, and a support seat is installed at the output end of the hydraulic lifter.

[0009] As an improved technical solution, the outer wall of the guide plate inside the guide rail is fully fitted with the inner wall of the guide rail, and the guide plate and the guide rail are slidably connected.

[0010] As an improved technical solution, the lengths of the extension shaft and drive shaft on the first roll are greater than the lengths of the extension shaft and drive shaft on the second roll.

[0011] As an improved technical solution, both the first and second rolls have connection holes on their drive shafts for connecting to external transmission devices.

[0012] As an improved technical solution, the input ends of the variable frequency motor, electric flatbed transporter and hydraulic lift are all electrically connected to an external controller via wires.

[0013] As an improved technical solution, the support seat has an arc-shaped groove in the middle, and the inner wall of the support seat is ground.

[0014] After adopting the above technical solution, the beneficial effects of this utility model are:

[0015] I. This utility model, by mounting two sets of rolling mill stands on horizontally movable guide plates, allows the two sets of rolling mill stands to move in opposite directions or backwards under the guidance of the variable frequency motor thread and the two sets of guide plates, by starting a variable frequency motor to rotate the lead screw. This allows the extension shafts and drive shafts on both sides of roll one and roll two to quickly disengage from the bushings on the rolling mill stands, thus enabling rapid disassembly and installation of roll one and roll two on the two sets of rolling mill stands. This facilitates quick replacement of rolls with different roughness and effectively improves the efficiency of roll replacement.

[0016] II. This utility model uses an electrically driven flatbed transport vehicle installed between two sets of rolling mill stands. The electric flatbed transport vehicle can drive a hydraulic lifter to move quickly between the two sets of rolling mill stands, and the hydraulic lifter can push the lifting seat to the bottom of roll two or roll one. This allows for the rapid lifting and movement of the disassembled rolls, effectively shortening the time required for roll replacement and reducing the difficulty of roll replacement. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a bottom view of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the present invention in a partially active state;

[0021] Figure 4 For the present utility model Figure 1 A magnified structural diagram at point A.

[0022] In the diagram: 1. Rolling mill archway; 2. Bushing; 3. Roll 1; 4. Roll 2; 5. Guide rail; 6. Guide plate; 7. Lead screw; 8. Variable frequency motor; 9. Threaded sleeve; 10. Extension shaft; 11. Drive shaft; 12. Electric flatbed transport vehicle; 13. Hydraulic lifter; 14. Lifting seat. Detailed Implementation

[0023] 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.

[0024] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0025] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0026] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0027] Figures 1 to 4 As shown, this embodiment provides a controllable surface roughness roll for a thick plate rolling mill, including two sets of rolling mill stands 1 and two sets of bushings 2 installed on the rolling mill stands 1. Roll 1 3 and Roll 2 4 are respectively arranged between the two sets of rolling mill stands 1. The ends of Roll 1 3 and Roll 2 4 are respectively connected to extension shafts 10 and drive shafts 11. The extension shafts 10 and drive shafts 11 are respectively inserted into the bushings 2 on the two sets of rolling mill stands 1. Two sets of guide rails 5 are installed at the bottom of the rolling mill stands 1. Guide plates 6 are arranged in both sets of guide rails 5. The top ends of the guide plates 6 are fixed to the bottom of the rolling mill stands 1. A lead screw 7 is rotatably connected between the two sets of guide rails 5 at the bottom of the rolling mill stands 1. A variable frequency motor 8 is installed at the end of the lead screw 7 away from the rolling mill stands 1. The output end of the variable frequency motor 8 is connected to the end of the lead screw 7. A threaded sleeve 9 is installed in the middle of the bottom of the rolling mill stands 1. The threaded sleeve 9 is threadedly connected to the lead screw 7. A conveying mechanism is arranged between the two sets of rolling mill stands 1.

[0028] By mounting two sets of mill stands 1 on laterally movable guide plates 6, the variable frequency motor 8 can be started to rotate the lead screw 7, allowing the two sets of mill stands 1 to move in opposite directions or backwards under the guidance of the threads of the variable frequency motor 8 and the two sets of guide plates 6. This allows the extension shafts 10 and drive shafts 11 on both sides of roll 1 3 and roll 2 4 to quickly disengage from the bushings 2 on the mill stands 1, thus enabling rapid disassembly and installation of roll 1 3 and roll 2 4 on the two sets of mill stands 1, effectively improving the efficiency of roll replacement.

[0029] In other embodiments, the conveying mechanism includes an electric flatbed transport vehicle 12, a hydraulic lift 13, and a support seat 14. An electric flatbed transport vehicle 12 is provided between two sets of rolling mill stands 1. A hydraulic lift 13 is installed at the top center of the electric flatbed transport vehicle 12, and a support seat 14 is installed at the output end of the hydraulic lift 13.

[0030] By installing an electrically driven flatbed transporter 12 between the two sets of rolling mill stands 1, the electric flatbed transporter 12 can drive the hydraulic lifter 13 to move quickly between the two sets of rolling mill stands 1, and the hydraulic lifter 13 can push the lifting seat 14 to the bottom of roll 4 or roll 3, so that the disassembled rolls can be quickly lifted and moved, effectively shortening the time required for the device to replace rolls and reducing the difficulty of replacing rolls.

[0031] like Figure 4 As shown, the outer wall of the guide plate 6 inside the guide rail 5 is fully fitted with the inner wall of the guide rail 5, and the guide plate 6 and the guide rail 5 are slidably connected.

[0032] With this design, when the mill stand 1 drives the guide plate 6 to move laterally along the guide rail 5, it can effectively prevent the guide plate 6 from shaking during the movement, thereby improving the stability of the mill stand 1 during movement.

[0033] like Figure 1 As shown, the lengths of the extension shaft 10 and drive shaft 11 on roll 3 are greater than the lengths of the extension shaft 10 and drive shaft 11 on roll 4.

[0034] With this design, when the two sets of mill stands 1 move laterally to both sides, the extension shaft 10 and drive shaft 11 on the second roll 4 can first disengage from the bushing 2 on the two sets of mill stands 1, so that the second roll 4 and the first roll 3 can be disassembled in batches.

[0035] like Figure 1 , 3 As shown, the drive shafts 11 on both roll 3 and roll 4 are provided with connection holes for connecting to external transmission devices.

[0036] This design allows the drive shaft 11 to be connected to an external transmission device, thereby enabling the drive shaft 11 to drive the first roll 3 and the second roll 4 to rotate.

[0037] In other embodiments, the input terminals of the variable frequency motor 8, the electric flatbed transport vehicle 12, and the hydraulic lift 13 are all electrically connected to an external controller via wires.

[0038] This design allows an external controller to control the start and stop of the variable frequency motor 8, the electric flatbed transport vehicle 12, and the hydraulic lift 13 in real time, ensuring that the variable frequency motor 8, the electric flatbed transport vehicle 12, and the hydraulic lift 13 can be used normally.

[0039] like Figure 1 , 3 As shown, the support seat 14 has an arc-shaped groove in the middle, and the inner wall of the support seat 14 is ground.

[0040] This design effectively increases the contact area between the support seat 14 and the first roll 3 and the second roll 4, and improves the friction between the support seat 14 and the first roll 3 and the second roll 4.

[0041] This utility model provides a roll for a thick plate rolling mill with controllable surface roughness. The specific working principle is as follows:

[0042] When rolling thick plates for different purposes is required, two sets of variable frequency motors 8 can be driven to rotate two sets of lead screws 7. This allows the variable frequency motors 8 at the bottom of the two sets of rolling mill stands 1 to drive the guide plates 6 at the bottom of the rolling mill stands 1 to move laterally along the guide rails 5 under the action of the screws. This causes the two sets of rolling mill stands 1 to move in opposite directions. When the extension shafts 10 and drive shafts 11 on both sides of the roll 2 completely leave the bushings 2 on the two sets of rolling mill stands 1, the roll 2 4 can fall into the lifting seat 14 on the electric flatbed transport vehicle 12. The lifting seat 14 then lifts the roll 2 4, and the rolling mill stands are then started again. The electric flatbed transporter 12 moves the second roll 4 inside the lifting seat 14 to transport it. The above operation is repeated. Then the first roll 3 is disassembled. When installing rolls with different roughness, the replacement first roll 3 can be moved between the two sets of rolling mill stands 1 by the electric flatbed transporter 12. The first roll 3 is installed first, and then the replacement second roll 4 is installed. After the first roll 3 and the second roll 4 are installed, the drive shaft 11 on the first roll 3 and the second roll 4 can be connected to the external transmission device. The operation is then completed.

[0043] The electrical components mentioned in this article are all electrically connected to an external main controller and industrial power supply, and the main controller can be a conventional known device such as a computer that provides control.

[0044] 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 type of roll with controllable surface roughness for a thick plate rolling mill, comprising two sets of mill stands (1) and two sets of bushings (2) mounted on the mill stands (1), characterized in that: Roll 1 (3) and Roll 2 (4) are respectively arranged between the two sets of rolling mill stands (1). The ends of Roll 1 (3) and Roll 2 (4) are respectively connected to an extension shaft (10) and a drive shaft (11). The extension shaft (10) and the drive shaft (11) are respectively inserted into the bushings (2) on the two sets of rolling mill stands (1). Two sets of guide rails (5) are installed at the bottom of the rolling mill stands (1). Guide plates (6) are provided in both sets of guide rails (5). The top of the guide plates (6) are fixed. At the bottom of the rolling mill stand (1), a lead screw (7) is rotatably connected between two sets of guide rails (5) at the bottom of the rolling mill stand (1). A variable frequency motor (8) is installed at the end of the lead screw (7) away from the rolling mill stand (1). The output end of the variable frequency motor (8) is connected to the end of the lead screw (7). A threaded sleeve (9) is installed in the middle of the bottom of the rolling mill stand (1). The threaded sleeve (9) is threadedly connected to the lead screw (7). A conveying mechanism is provided between the two sets of the rolling mill stands (1).

2. The surface roughness controllable roll for a thick plate rolling mill according to claim 1, characterized in that: The conveying mechanism includes an electric flatbed transport vehicle (12), a hydraulic lift (13) and a support seat (14). An electric flatbed transport vehicle (12) is set between the two sets of rolling mill stands (1). A hydraulic lift (13) is installed at the top center of the electric flatbed transport vehicle (12). A support seat (14) is installed at the output end of the hydraulic lift (13).

3. The surface roughness controllable roll for a thick plate rolling mill according to claim 1, characterized in that: The outer wall of the guide plate (6) inside the guide rail (5) is fully fitted with the inner wall of the guide rail (5), and the guide plate (6) and the guide rail (5) are slidably connected.

4. A surface roughness controllable roll for a thick plate rolling mill according to claim 1, characterized in that: The lengths of the extension shaft (10) and drive shaft (11) on the first roll (3) are greater than the lengths of the extension shaft (10) and drive shaft (11) on the second roll (4).

5. A surface roughness controllable roll for a thick plate rolling mill according to claim 1, characterized in that: Both the drive shaft (11) on the first roll (3) and the second roll (4) are provided with connection holes for connecting to external transmission devices.

6. A surface roughness controllable roll for a thick plate rolling mill according to claim 1 or 2, characterized in that: The input terminals of the variable frequency motor (8), electric flatbed transport vehicle (12) and hydraulic lift (13) are all electrically connected to an external controller via wires.

7. A surface roughness controllable roll for a thick plate rolling mill according to claim 2, characterized in that: The support seat (14) has an arc-shaped groove in the middle, and the inner wall of the support seat (14) is ground.

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