Rolling mill AGC servo cylinder replacement tool

Abstract

The invention discloses a rolling mill AGC servo cylinder replacement tool, and relates to the technical field of AGC servo cylinders, the rolling mill AGC servo cylinder replacement tool comprises a rolling mill body and a servo cylinder body, the rolling mill body is provided with a mounting groove, the rolling mill body is provided with a through hole, the servo cylinder body is mounted in the mounting groove, and the through hole is formed in the servo cylinder body. The servo cylinder body is in threaded connection with two first threaded rods and two second threaded rods, one ends of the two first threaded rods and one ends of the two second threaded rods are connected with a fixing disc through first fixing bolts, and the two first threaded rods and the two second threaded rods penetrate through through holes. The ends, away from the fixing disc, of the two first threaded rods are provided with lifting discs through second fixing bolts, lifting rings are arranged on the lifting discs, and positioning mechanisms are arranged on the lifting discs. The servo cylinder body can be conveniently installed, the installation operation is convenient and fast, the installation efficiency can be improved, shaking of the servo cylinder body during installation is reduced, and the installation stability and accuracy are improved.

Description

Technical Field

[0001] The invention relates to the technical field of AGC servo cylinder installation, in particular to a rolling mill AGC servo cylinder replacement tool. Background Art

[0002] The AGC cylinder controls the displacement of the hydraulic cylinder through the electro-hydraulic servo valve, so that the rollers move up and down, thereby achieving precise control of the roller gap and thus achieving precise control of the plate thickness. On the hot strip production line, the installation and replacement process of the AGC cylinder is affected by its special location, making the lifting extremely difficult.

[0003] In the related art, when the AGC servo cylinder is installed inside the hole on the arch, the upper part of the AGC servo cylinder is fixed to the arch by a cover through a long pull rod. It is difficult to install it using conventional tools. And when the AGC servo cylinder is installed on different arches, the diameters of the holes on different arches are different, so during installation, the cylinder body may be hit or squeezed due to shaking or tilting, causing the cylinder body to deform, crack or even break, increasing the difficulty of installation. Therefore, those skilled in the art provide a rolling mill AGC servo cylinder replacement tool to solve the problems raised in the above background technology. Summary of the invention

[0004] The object of the present invention is to provide a rolling mill AGC servo cylinder replacement tool to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A rolling mill AGC servo cylinder replacement tool, comprising:

[0007] A rolling mill body, wherein a mounting groove is provided on the rolling mill body, and a through hole is provided on the rolling mill body;

[0008] A servo cylinder body, wherein the servo electric cylinder body is installed in the installation groove, and two first threaded rods and two second threaded rods are threadedly connected to the servo cylinder body, one end of the two first threaded rods and the two second threaded rods are connected to a fixed plate by a first fixing bolt, and the two first threaded rods and the two second threaded rods pass through the through hole, and a lifting plate is installed at one end of the two first threaded rods away from the fixed plate by a second fixing bolt, and a lifting ring is provided on the lifting plate, and a positioning mechanism is provided on the lifting plate.

[0009] Preferably, a limit block is provided on the servo cylinder body, and a limit groove for the limit block to engage is opened on one side of the installation groove.

[0010] Preferably, a connecting groove is provided on the rolling mill body, and the fixed disk is engaged in the connecting groove.

[0011] Preferably, the positioning mechanism includes a support plate, a movable plate, a servo electric cylinder and a plurality of pulleys, the support plate is connected to the servo cylinder body by mounting bolts, the servo electric cylinder is fixedly mounted on the support plate, and the output end of the servo electric cylinder is connected to the movable plate, and a plurality of pulleys are mounted on the movable plate.

[0012] Preferably, telescopic rods are installed at both ends of the support plate, and the other end of the telescopic rods is connected to the movable plate.

[0013] Preferably, two groups of the second fixing bolts are provided, and the two groups of the second fixing bolts are threadedly connected to two sides of the lifting plate.

[0014] Preferably, a first connecting hole and a second connecting hole are provided on the lifting plate, the two first threaded rods and the two second threaded rods pass through the first connecting hole and the second connecting hole respectively, and the first fixing bolt can pass through the first connecting hole.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention facilitates the installation of the servo cylinder body by providing two first threaded rods and two second threaded rods, and the installation operation is convenient, which can improve the installation efficiency.

[0017] 2. The present invention sets a positioning mechanism to limit the servo cylinder body when the servo cylinder body is installed, so that the two first threaded rods and the two second threaded rods remain stable, reducing the shaking of the servo cylinder body during installation and improving installation stability and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main cross-sectional structure of a rolling mill AGC servo cylinder replacement tool in an embodiment of the present application;

[0019] Figure 2 This is a schematic cross-sectional structural diagram of a lifting plate of a rolling mill AGC servo cylinder replacement tool in an embodiment of the present application;

[0020] Figure 3 This is a schematic diagram of the servo cylinder body structure of a rolling mill AGC servo cylinder replacement tool in an embodiment of the present application.

[0021] In the figure: 1. rolling mill body; 2. mounting groove; 3. through hole; 4. servo cylinder body; 5. first threaded rod; 6. second threaded rod; 7. first fixing bolt; 8. fixing plate; 9. second fixing bolt; 10. lifting plate; 11. lifting ring; 12. limit block; 13. limit groove; 14. connecting groove; 15. mounting bolt; 16. supporting plate; 17. moving plate; 18. servo electric cylinder; 19. pulley; 20. telescopic rod; 21. first connecting hole; 22. second connecting hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 3 , the present invention provides a technical solution:

[0024] A rolling mill AGC servo cylinder replacement tool, comprising:

[0025] A rolling mill body 1, a mounting groove 2 is provided on the rolling mill body 1, a limit block 12 is provided on the servo cylinder body 4, a limit groove 13 for the limit block 12 to engage is provided on one side of the mounting groove 2, and through the arrangement of the limit block 12 and the limit groove 13, when the servo cylinder body 4 is installed in the mounting groove 2, the limit block 12 is engaged in the limit groove 13, and the servo cylinder body 4 can be limitedly installed, which can improve the installation efficiency, and a through hole 3 is provided on the rolling mill body 1;

[0026] The servo cylinder body 4 and the servo electric cylinder 18 body are installed in the installation groove 2. Two first threaded rods 5 and two second threaded rods 6 are threadedly connected to the servo cylinder body 4. One end of the two first threaded rods 5 and the two second threaded rods 6 are connected to the fixed plate 8 through the first fixing bolt 7. A connecting groove 14 is opened on the rolling mill body 1. The fixed plate 8 is engaged in the connecting groove 14. The two first threaded rods 5 and the two second threaded rods 6 pass through the through hole 3. A lifting plate 10 is installed at one end of the two first threaded rods 5 away from the fixed plate 8 through the second fixing bolt 9. There are two groups of second fixing bolts 9. The two groups of second fixing bolts 9 are threadedly connected to both sides of the lifting plate 10. A lifting ring 11 is provided on the lifting plate 10, and a positioning mechanism is provided on the lifting plate 10.

[0027] Furthermore, a first connecting hole 21 and a second connecting hole 22 are provided on the lifting plate 10, and two first threaded rods 5 and two second threaded rods 6 pass through the first connecting hole 21 and the second connecting hole 22 respectively, and the first fixing bolt 7 can pass through the first connecting hole 21, wherein the diameter of the first connecting hole 21 is larger than the diameter of the second connecting hole 22, so that the first fixing bolt 7 connected to the second threaded rod 6 can pass through the second connecting hole 22.

[0028] When installing the servo cylinder body 4, first place the servo cylinder body 4 directly below the mounting groove 2 of the rolling mill body 1, engage the fixed plate 8 into the connecting groove 14, and then pass the first threaded rod 5 through the first connecting hole 21 and the through hole 3 of the fixed plate 8, and connect the first threaded rod 5 to the servo cylinder body 4, use the first fixing bolt 7 to connect to the first threaded rod 5, and fix the fixed plate 8 in the connecting groove 14.

[0029] Next, the first threaded rod 5 is passed through the first connection hole 21 on the lifting disk 10, and the second fixing bolt 9 is used to connect the two sides of the lifting disk 10, and the lifting disk 10 is fixed to one end of the first threaded rod 5. After confirming that the first threaded rod 5 is installed in place, the lifting device is connected to the lifting ring 11, and then the servo cylinder body 4 is lifted. After the servo cylinder body 4 rises to its place, the second threaded rod 6 is passed through the second connection hole 22 on the lifting disk 10 and the through hole 3 on the rolling mill body 1, and the second threaded rod 6 is connected to the servo cylinder body 4. The first fixing bolt 7 on the second threaded rod 6 passes through the second connection hole 22 on the lifting disk 10, and the first fixing bolt 7 on the second threaded rod 6 is connected to the fixing disk 8. After confirming that the second threaded rod 6 of the servo cylinder body 4 is installed, the second fixing bolt 9 is removed, and the lifting disk 10 is removed, and the servo cylinder body 4 can be installed and fixed.

[0030] When disassembling the servo cylinder body 4, first disassemble the first fixing bolt 7 connected to the second threaded rod 6 on the fixing plate 8, then remove the first fixing bolt 7 from the second connecting hole 22, remove the two diagonal second threaded rods 6, and then disassemble the other two first fixing bolts 7. Then lower the servo cylinder body 4 to the bottom of the rolling mill installation groove 2, then disassemble the first threaded rod 5, and then move the servo cylinder body 4 to another location.

[0031] Specifically, the positioning mechanism includes a support plate 16, a movable plate 17, a servo electric cylinder 18 and a plurality of pulleys 19. The support plate 16 is connected to the servo cylinder body 4 by mounting bolts 15. The servo electric cylinder 18 is fixedly mounted on the support plate 16, and the output end of the servo electric cylinder 18 is connected to the movable plate 17. A plurality of pulleys 19 are mounted on the movable plate 17. Telescopic rods 20 are installed at both ends of the support plate 16, and the other end of the telescopic rod 20 is connected to the movable plate 17. By setting the telescopic rod 20, the two ends of the movable plate 17 can be limitedly connected.

[0032] When the servo cylinder body 4 is installed in the mounting groove 2, the support plate 16 is fixedly installed on the servo cylinder body 4 by the mounting bolts 15, and then the servo electric cylinder 18 drives the movable plate 17 to move, and the pulley 19 on the movable plate 17 is in contact with the inner wall of the mounting groove 2, so that the servo cylinder body 4 can be limited, so that the two first threaded rods 5 and the two second threaded rods 6 remain stable, reducing the shaking of the servo cylinder body 4 during installation, and improving the installation stability and accuracy.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rolling mill AGC servo cylinder replacement tool, characterized in that: include: A rolling mill body (1), wherein a mounting groove (2) is provided on the rolling mill body (1), and a through hole (3) is provided on the rolling mill body (1); A servo cylinder body (4), wherein the servo electric cylinder (18) body is installed in the installation groove (2), and two first threaded rods (5) and two second threaded rods (6) are threadedly connected to the servo cylinder body (4), one end of the two first threaded rods (5) and the two second threaded rods (6) are connected to a fixing plate (8) via a first fixing bolt (7), the two first threaded rods (5) and the two second threaded rods (6) pass through the through hole (3), and one end of the two first threaded rods (5) away from the fixing plate (8) is installed with a lifting plate (10) via a second fixing bolt (9), and the lifting plate (10) is provided with a lifting ring (11), and the lifting plate (10) is provided with a positioning mechanism.

2. A rolling mill AGC servo cylinder replacement tool according to claim 1, characterized in that: The servo cylinder body (4) is provided with a limit block (12), and one side of the installation groove (2) is provided with a limit groove (13) for the limit block (12) to engage with.

3. A rolling mill AGC servo cylinder replacement tool according to claim 1, characterized in that: The rolling mill body (1) is provided with a connecting groove (14), and the fixed disk (8) is engaged in the connecting groove (14).

4. A rolling mill AGC servo cylinder replacement tool according to claim 1, characterized in that: The positioning mechanism comprises a support plate (16), a movable plate (17), a servo electric cylinder (18) and a plurality of pulleys (19); the support plate (16) is connected to the servo cylinder body (4) via mounting bolts (15); the servo electric cylinder (18) is fixedly mounted on the support plate (16); an output end of the servo electric cylinder (18) is connected to the movable plate (17); and a plurality of pulleys (19) are mounted on the movable plate (17).

5. A rolling mill AGC servo cylinder replacement tool according to claim 4, characterized in that: Telescopic rods (20) are installed at both ends of the support plate (16), and the other end of the telescopic rod (20) is connected to the movable plate (17).

6. A rolling mill AGC servo cylinder replacement tool according to claim 1, characterized in that: The second fixing bolts (9) are provided in two groups, and the two groups of the second fixing bolts (9) are threadedly connected to two sides of the lifting plate (10).

7. The rolling mill AGC servo cylinder replacement tool according to claim 1, characterized in that: The lifting plate (10) is provided with a first connecting hole (21) and a second connecting hole (22); the two first threaded rods (5) and the two second threaded rods (6) respectively penetrate the first connecting hole (21) and the second connecting hole (22); and the first fixing bolt (7) can penetrate the first connecting hole (21).

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