Auxiliary centering device for roll changing push-pull cylinder of finishing mill

Abstract

The utility model relates to the technical field of finishing mills, and discloses a finishing mill roll changing push-pull cylinder auxiliary centering device which comprises a connecting shell and further comprises a movable shell arranged at the top of the connecting shell, a movable plate is arranged in an inner cavity of the connecting shell, a supporting plate is fixedly connected to the front side of the movable plate, a guide rail is arranged at the top of the supporting plate, and a sliding block is arranged on the guide rail. A bearing block is arranged at the top of the guide rail; through cooperative use of the motor, the first transmission wheel, the toothed belt, the second transmission wheel, the lead screw and the threaded sleeve, the movable plate and the supporting plate can drive a roller in the bearing block to vertically move upwards so as to achieve the accurate and rapid centering effect, through the push-pull cylinder body, the guide rail, the bearing block and the sliding base, the roller can be driven to obliquely move, and the centering precision is improved. The roller is located right below the center point of the shaft sleeve, the centering process is assisted, and meanwhile the phenomenon that a traditional push-pull cylinder body is bent or deformed due to the fact that the bearing force is too large can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of finishing mills, in particular to an auxiliary centering device for a roll-changing push-pull cylinder of a finishing mill. Background Technique

[0002] A finishing mill is a device used for processing metal materials, mainly used for continuously rolling rough-rolled metal strips or plates through multiple sets of rolls to meet precise thickness and surface quality requirements. Its working principle is to roll the metal through multiple sets of rolls to gradually reduce the thickness and improve the surface finish. Finishing mills are widely used in the production of sheets and strip steel in the iron and steel industry, and are also used for the processing of other metal materials, and are one of the important processing devices in industrial manufacturing.

[0003] During the use of a finishing mill, due to the long-term operation of its internal rolls in a high-pressure and high-temperature working environment, the surface will gradually wear due to friction and pressure, and at the same time, it will also break or crack due to excessive stress or material fatigue. Therefore, the rolls need to be replaced frequently. However, when changing the rolls, a push-pull cylinder is required to first support and transport the roll and the tooling for supporting the roll. When the push-pull cylinder extends to a certain position, a support block needs to be placed under the bottom of the push-pull cylinder, and then a new roll is assembled, and then the support block is removed from the bottom of the push-pull cylinder to complete the overall roll-changing process. However, due to the frequent roll-changing times, using the above method to change the rolls for a long time is likely to cause the push-pull cylinder to break or bend due to excessive bearing force, resulting in misalignment.

[0004] Therefore, in view of the above problems, we need to propose an auxiliary centering device for a roll-changing push-pull cylinder of a finishing mill. Content of the Utility Model

[0005] The purpose of the utility model is to provide an auxiliary centering device for a roll-changing push-pull cylinder of a finishing mill to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: An auxiliary centering device for a roll-changing push-pull cylinder of a finishing mill, including a connecting shell, and further including:

[0007] A movable shell arranged on the top of the connecting shell, an inner cavity of the connecting shell is provided with a movable plate, a front side of the movable plate is fixedly connected with a support plate, a guide rail is arranged on the top of the support plate, a supporting block is arranged on the top of the guide rail, one side of the supporting block is movably connected with a push-pull cylinder body through a rotating shaft, a rear side of the push-pull cylinder body is fixedly connected with the movable plate, and a bushing is arranged in the inner cavity of the connecting shell;

[0008] An adjustment assembly arranged in the inner cavity of the movable shell and capable of driving the movable plate to drive the supporting block to vertically move upward to center the roll.

[0009] Preferably, the debugging component includes a motor. The top of the motor is fixedly connected to the movable shell. The output end of the motor penetrates into the inner cavity of the movable shell and is fixedly connected to a first transmission wheel. A toothed belt is sleeved on the surface of the first transmission wheel. Second transmission wheels are arranged on both sides of the inner cavity of the toothed belt. A lead screw is fixedly connected to the inner cavity of the second transmission wheel. A threaded sleeve is threadedly connected to the surface of the lead screw. There are two threaded sleeves, and the surfaces of the two threaded sleeves are respectively fixedly connected to the support plate and the movable plate.

[0010] Preferably, limit blocks are fixedly connected to both sides of the inner cavity of the connection shell, and the inner cavity of the limit block is located on the surface of the threaded sleeve.

[0011] Preferably, a positioning frame is fixedly connected to the surface of the push-pull cylinder body, and the rear side of the positioning frame is fixedly connected to the rear side of the inner cavity of the connection shell.

[0012] Preferably, a sliding seat is fixedly connected to the bottom of the supporting block, and the surface of the sliding seat is slidably connected to the inner cavity of the guide rail.

[0013] Preferably, an abutting block is fixedly connected to one side of the guide rail, and one side of the abutting block contacts the supporting block.

[0014] Preferably, positioning plates are fixedly connected to both sides of the connection shell, and mounting holes are formed in the surfaces of the positioning plates.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] Through the cooperation of the motor, the first transmission wheel, the toothed belt, the second transmission wheel, the lead screw and the threaded sleeve, the present utility model can make the movable plate and the support plate drive the roller inside the supporting block to vertically displace upward, so as to achieve the effect of accurate and rapid centering. Through the push-pull cylinder body, the guide rail, the supporting block and the sliding seat, the roller can be driven to displace obliquely, so that the roller is just below the center point of the shaft sleeve, assisting the centering process, and at the same time, it can also avoid the phenomenon that the traditional push-pull cylinder body is bent or deformed due to excessive bearing force. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the auxiliary centering device for the roll-changing push-pull cylinder of the finishing mill provided by the present utility model;

[0018] Figure 2 is a schematic rear view structure diagram provided by the present utility model;

[0019] Figure 3 is a schematic disassembled structure diagram provided by the present utility model;

[0020] Figure 4 is a schematic structural diagram of the debugging component provided by the present utility model.

[0021] In the figure: 1. Connecting shell; 2. Movable shell; 3. Positioning plate; 4. Movable plate; 5. Debugging component; 501. Motor; 502. First driving wheel; 503. Tooth belt; 504. Second driving wheel; 505. Lead screw; 506. Thread sleeve; 6. Pushing and pulling cylinder body; 7. Supporting block; 8. Supporting plate; 9. Bush; 10. Positioning frame; 11. Slide block; 12. Guide rail; 13. Limit block; 14. Abutting block. Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-4 As shown, a centering device for assisting the roll-changing push-pull cylinder of a finishing mill includes a connecting shell 1. A movable shell 2 is arranged at the top of the connecting shell 1. A movable plate 4 is arranged in the inner cavity of the connecting shell 1. The movable plate 4 is located in the inner cavity of the connecting shell 1, and its function is to cooperate with the supporting plate 8 to displace the pushing and pulling cylinder body 6 and the supporting block 7. A supporting plate 8 is fixedly connected to the front side of the movable plate 4. A guide rail 12 is arranged on the top of the supporting plate 8. The guide rail 12 is located on the top of the supporting plate 8, and its function is to limit the supporting block 7. A supporting block 7 is arranged on the top of the guide rail 12. The supporting block 7 is located on the top of the guide rail 12, and its function is to limit the rolling mill roll. One side of the supporting block 7 is movably connected to the pushing and pulling cylinder body 6 through a rotating shaft. The pushing and pulling cylinder body 6 is located on one side of the supporting block 7, and its function is to drive the rolling mill roll inside the supporting block 7 to displace. The rear side of the pushing and pulling cylinder body 6 is fixedly connected to the movable plate 4. A bush 9 is arranged in the inner cavity of the connecting shell 1. The bush 9 is located in the inner cavity of the connecting shell 1, and its function is to position the rolling mill roll; a debugging component 5 arranged in the inner cavity of the movable shell 2 can enable the movable plate 4 to drive the supporting block 7 to vertically move upward to align the rolling mill roll.

[0024] The debugging component 5 includes a motor 501. The top of the motor 501 is fixedly connected to the movable shell 2. The output end of the motor 501 penetrates into the inner cavity of the movable shell 2 and is fixedly connected to a first transmission wheel 502. A toothed belt 503 is sleeved on the surface of the first transmission wheel 502. Second transmission wheels 504 are arranged on both sides of the inner cavity of the toothed belt 503. A lead screw 505 is fixedly connected to the inner cavity of the second transmission wheel 504. A threaded sleeve 506 is threadedly connected to the surface of the lead screw 505. There are two threaded sleeves 506. The surfaces of the two threaded sleeves 506 are respectively fixedly connected to the support plate 8 and the movable plate 4. By the combined use of the motor 501, the first transmission wheel 502, the toothed belt 503, the second transmission wheel 504, the lead screw 505 and the threaded sleeve 506, the movable plate 4 and the support plate 8 can drive the roller inside the supporting block 7 to vertically displace upward, so as to achieve the effect of accurate and rapid centering.

[0025] Limit blocks 13 are fixedly connected to both sides of the inner cavity of the connection shell 1. The limit blocks 13 are located in the inner cavity of the connection shell 1, and their function is to limit the rising height of the threaded sleeve 506. The inner cavity of the limit block 13 is located on the surface of the threaded sleeve 506.

[0026] A positioning frame 10 is fixedly connected to the surface of the push-pull cylinder body 6. The positioning frame 10 is located on the surface of the push-pull cylinder body 6, and its function is to position the push-pull cylinder body 6. The rear side of the positioning frame 10 is fixedly connected to the rear side of the inner cavity of the connection shell 1.

[0027] A sliding seat 11 is fixedly connected to the bottom of the supporting block 7. The sliding seat 11 is located at the bottom of the supporting block 7, and its function is to limit the supporting block 7. The surface of the sliding seat 11 is slidably connected to the inner cavity of the guide rail 12.

[0028] An abutting block 14 is fixedly connected to one side of the guide rail 12. The abutting block 14 is located on one side of the guide rail 12, and its function is to limit the supporting block 7. One side of the abutting block 14 is in contact with the supporting block 7.

[0029] Positioning plates 3 are fixedly connected to both sides of the connection shell 1. The positioning plates 3 are located on both sides of the connection shell 1, and their function is to facilitate the installation of the connection shell 1 by the staff. Installation holes are formed on the surfaces of the positioning plates 3.

[0030] Working principle: When the staff needs to replace the roll, first, the telescopic end of the push-pull cylinder body 6 drives the supporting block 7 to approach the direction of the bushing 9. When the supporting block 7 moves to the leftmost side of the guide rail 12 and contacts the abutting block 14, the push-pull cylinder body 6 will stop. At this time, the staff can place the old roll inside the supporting block 7. Subsequently, the push-pull cylinder body 6 drives the supporting block 7 to retract, and the staff can remove the old roll and replace it with a new roll. After the new roll is placed inside the supporting block 7, the telescopic end of the push-pull cylinder body 6 will drive the supporting block 7 to displace to the upper left again. When the supporting block 7 contacts the abutting block 14 again, the push-pull cylinder body 6 will stop running. Subsequently, the motor 501 is turned on, and the output end of the motor 501 will make the lead screw 505 inside the second transmission wheel 504 rotate through the cooperation of the first transmission wheel 502 and the toothed belt 503. Subsequently, the threaded sleeve 506 on the surface of the lead screw 505 will drive the movable plate 4 and the support plate 8 to move upward. When the threaded sleeve 506 contacts the limiting block 13, the motor 501 stops. At this time, the center position inside the supporting shell coincides exactly with the center of the bushing 9, thus achieving an accurate and low-loss centering process.

[0031] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A roller-changing push-pull cylinder auxiliary centering device for a finishing mill, comprising a connecting shell (1), characterized in that: Also includes: A movable shell (2) is arranged on the top of the connecting shell (1), the inner cavity of the connecting shell (1) is provided with a movable plate (4), the front side of the movable plate (4) is fixedly connected to a support plate (8), the top of the support plate (8) is provided with a guide rail (12), the top of the guide rail (12) is provided with a support block (7), one side of the support block (7) is movably connected to a push-pull cylinder body (6) via a rotating shaft, the rear side of the push-pull cylinder body (6) is fixedly connected to the movable plate (4), and the inner cavity of the connecting shell (1) is provided with a shaft sleeve (9); The debugging component (5) is arranged in the inner cavity of the movable shell (2) and can enable the movable plate (4) to drive the supporting block (7) to move vertically upward to align the roller.

2. The auxiliary centering device for roller changing push-pull cylinder of a finishing mill according to claim 1, characterized in that: The debugging component (5) comprises a motor (501), the top of the motor (501) is fixedly connected to the movable shell (2), the output end of the motor (501) passes through the inner cavity of the movable shell (2) and is fixedly connected to a first transmission wheel (502), the surface of the first transmission wheel (502) is sleeved with a toothed belt (503), and second transmission wheels (504) are arranged on both sides of the inner cavity of the toothed belt (503), the inner cavity of the second transmission wheel (504) is fixedly connected with a screw rod (505), the surface of the screw rod (505) is threadedly connected with a threaded sleeve (506), and two threaded sleeves (506) are provided, and the surfaces of the two threaded sleeves (506) are respectively fixedly connected to the support plate (8) and the movable plate (4).

3. The auxiliary centering device for roller changing push-pull cylinder of a finishing mill according to claim 1, characterized in that: Limit blocks (13) are fixedly connected to both sides of the inner cavity of the connection shell (1), and the inner cavity of the limit blocks (13) is located on the surface of the threaded sleeve (506).

4. The auxiliary centering device for roller changing push-pull cylinder of a finishing mill according to claim 1, characterized in that: A positioning frame (10) is fixedly connected to the surface of the push-pull cylinder body (6), and the rear side of the positioning frame (10) is fixedly connected to the rear side of the inner cavity of the connecting shell (1).

5. The auxiliary centering device for roller changing push-pull cylinder of a finishing mill according to claim 1, characterized in that: The bottom of the supporting block (7) is fixedly connected to a sliding seat (11), and the surface of the sliding seat (11) is slidably connected to the inner cavity of the guide rail (12).

6. The auxiliary centering device for roller changing push-pull cylinder of a finishing mill according to claim 1, characterized in that: One side of the guide rail (12) is fixedly connected to an abutment block (14), and one side of the abutment block (14) is in contact with a supporting block (7).

7. The auxiliary centering device for roller changing push-pull cylinder of a finishing mill according to claim 1, characterized in that: Positioning plates (3) are fixedly connected to both sides of the connection shell (1), and mounting holes are provided on the surfaces of the positioning plates (3).

Images