Hot-rolled strip steel outlet guide and guard driving device

Abstract

The utility model relates to the technical field of hot-rolled strip steel outlet guide and guard driving, and particularly discloses a hot-rolled strip steel outlet guide and guard driving device which comprises an outlet guide and guard, the outlet guide and guard is arranged on an adjusting frame in a sliding mode, and piston rods of two oil cylinders are hinged to the bottom face of the outlet guide and guard. The two oil cylinders are symmetrically arranged with the rolling center line as the axis. A cylinder body of the oil cylinder is hinged to the fixed seat; and the fixed seat is fixedly arranged on the adjusting frame. Compared with the prior art, through the two oil cylinders which are symmetrically arranged with the rolling center line as the axis, the stability of the outlet guide in and out processes can be improved, cooperation of the water cutting plate and the working roller is guaranteed, and the problem that the rolling stability and the product quality are affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hot-rolled strip steel outlet guide driving, and specifically discloses a hot-rolled strip steel outlet guide driving device. Background Art

[0002] Each unit of the hot strip finishing mill is equipped with an exit guide device, which is used for the smooth export of the strip, cooling of the working rolls and isolating the cooling water from flowing to the strip surface. The exit guide is driven by a hydraulic cylinder to move to the roll changing position when changing the working rolls and support rolls. The exit guide frame is equipped with a working roll segmented cooling water collection pipe and a smoke and dust suppression device, which are used to cool the working rolls and suppress smoke and dust. The exit guide device is equipped with an upper and lower water cutter plate to isolate the cooling water of the working rolls, prevent the cooling water from flowing above the strip and the smooth export of the strip.

[0003] In the prior art, the exit guide is located above the elevation adjustment guide frame between the two finishing mills, on the exit side of each rolling mill. Each time the working rolls and support rolls are replaced, an exit guide oil cylinder drives it to move in and out horizontally above the elevation adjustment guide frame. The exit guide oil cylinder body is fixed to the base of the elevation adjustment guide frame by a pin, and the piston rod head is fixed to the base of the exit guide by a pin. There is also a strip steel continuous rolling guide device without vertical rollers as disclosed in the patent with announcement number CN111112350A. In the above scheme, the oil cylinder body is actually hinged to the base of the exit guide, and the piston rod is hinged to the elevation adjustment guide frame.

[0004] Due to the cut-off plate, work roll segmented cooling water collection pipe and smoke suppression device installed on the exit guide, the exit guide end is heavy, and the working condition of the exit guide is relatively bad (there is a lot of cooling water flushing, high temperature, high humidity), the maintenance space is narrow, and the action is frequent. After 3 months of use, all connection parts and slides will be worn. The weight balance point of the exit guide device is suspended in the air, causing the slide line contact problem, which eventually causes the guide to deflect to the left and right sides during the movement in and out. After the deflection, the movement in and out is blocked, the upper and lower cut-off plates installed on the guide device cannot fit with the surface of the working roll, the cooling water of the working roll flows to the surface of the plate and strip, causing the temperature of the plate and strip to drop, and the head of the plate and strip drills into the gap between the surface of the working roll and the cut-off plate, which restricts the rolling stability and product quality.

[0005] Therefore, in the actual production process, it is necessary to ensure the normal use of the exit guide to ensure that the water cutter plate is completely in contact with the surface of the working roll, to prevent the cooling water of the working roll from flowing above the plate and strip and the plate and strip from drilling into the gap between the water cutter plate and the surface of the working roll, so as to control the rolling temperature of the plate and strip, and to smoothly export the strip, improve the rolling stability and product quality. Utility Model Content

[0006] In view of the above-mentioned deficiencies in the prior art, the utility model provides a hot-rolled strip exit guide driving device to solve the problem that the exit guide is prone to left and right deviations during the moving in and out process, which affects the rolling stability and product quality.

[0007] To achieve the above purpose, the technical solution of the utility model is:

[0008] A hot-rolled strip exit guide driving device comprises an exit guide, which is slidably arranged on an adjustment frame, and the bottom surface of the exit guide is hinged with piston rods of two oil cylinders; the two oil cylinders are symmetrically arranged with the rolling center line as the axis; the cylinder bodies of the oil cylinders are hinged on a fixed seat; and the fixed seat is fixedly arranged on the adjustment frame. By symmetrically arranging the two oil cylinders with the rolling center line as the axis, the stability of the exit guide moving in and out can be improved, the cooperation between the water cutter plate and the working roll can be ensured, and the problems affecting the rolling stability and product quality can be avoided.

[0009] Preferably, the piston rod of the oil cylinder is hinged on an articulated seat 1; and the articulated seat 1 is fixedly arranged on the bottom surface of the outlet guide.

[0010] Preferably, the articulated seat 1 is arranged in an "L" shape as a whole; a clearance groove is arranged on the bottom surface of the articulated seat 1; and the piston rod of the oil cylinder is hinged in the clearance groove. The articulated seat 1 arranged in an "L" shape as a whole enhances the connection stability between the articulated seat 1 and the bottom surface of the outlet guide. The clearance groove arranged on the bottom surface reduces the scouring of cooling water, ensures the stability of the articulation between the oil cylinder piston rod and the articulated seat 1, reduces wear, ensures the stability of the oil cylinder movement, and further ensures the stability of the translation of the outlet guide.

[0011] Preferably, the oil cylinder body is arranged on the fixed seat through the second hinge seat.

[0012] Preferably, the cross section of the fixing seat is in the shape of an inverted "mountain", which ensures the structural stability of the fixing seat, the structural strength under a large amount of cooling water flushing, high temperature and high humidity environment, and the stability of the second setting of the hinge seat.

[0013] Preferably, a plurality of reinforcing ribs are arranged on the fixed seat; the plurality of reinforcing ribs are arranged at intervals and are parallel to each other; the plane where the reinforcing ribs are located is parallel to the rolling center line, so as to further increase the structural strength of the fixed seat, reduce the influence of the external environment, ensure the stability of the cylinder movement, and ensure the stability of the translation of the outlet guide.

[0014] The beneficial effects of the utility model are as follows: by symmetrically arranging two oil cylinders with the rolling center line as the axis, the stability of the process of moving in and out of the outlet guide can be improved, the coordination between the water cutting plate and the working roller can be ensured, and the problems affecting the rolling stability and product quality can be avoided. The articulated seat 1, which is arranged in an "L" shape as a whole, enhances the connection stability between the articulated seat 1 and the bottom surface of the outlet guide. The clearance groove arranged on the bottom surface reduces the scouring of cooling water, ensures the stability of the articulation between the oil cylinder piston rod and the articulated seat 1, reduces wear, ensures the stability of the oil cylinder movement, and further ensures the stability of the translation of the outlet guide. The reasonable setting of the fixed seat ensures the structural stability of the fixed seat, ensures the structural strength under a large amount of cooling water scouring, high temperature, and high humidity environment, and ensures the stability of the setting of the second articulated seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0017] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0018] Figure 3 It is a cross-sectional schematic diagram of the utility model;

[0019] Figure 4 It is a structural schematic diagram of an articulated seat 1 of the utility model.

[0020] Description of reference numerals:

[0021] 1-exit guide, 2-elevation adjustment guide frame, 3-oil cylinder, 4-fixed seat, 5-hinge seat 1, 6-hinge seat 2, 7-reinforcement rib plate, 8-water cutting plate; 501-gap groove. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solutions in the present invention, 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 them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0023] like Figure 1-4 As shown, a hot-rolled strip exit guide driving device comprises an exit guide 1, which is slidably arranged on an adjustment frame 2, and the bottom surface of the exit guide 1 is hinged with piston rods of two oil cylinders 3; the two oil cylinders 3 are symmetrically arranged with the rolling center line as the axis, and the distance between the center line of the oil cylinder 3 and the rolling center line is 775 mm; the cylinder body of the oil cylinder 3 is hinged on the fixed seat 4; the fixed seat 4 is fixedly arranged on the adjustment frame 2. By symmetrically arranging the two oil cylinders 3 with the rolling center line as the axis, the stability of the exit guide 1 in and out can be improved, the cooperation between the water cut plate 8 and the working roll can be ensured, and the problems affecting the rolling stability and product quality can be avoided.

[0024] In the above arrangement, the piston rod of the oil cylinder 3 is hinged on the hinge seat 15; the hinge seat 15 is fixedly arranged on the bottom surface of the outlet guide 1. The hinge seat 15 is arranged in an "L" shape as a whole; a clearance groove 501 is arranged on the bottom surface of the hinge seat 15; the piston rod of the oil cylinder 3 is hinged in the clearance groove 501. The hinge seat 15 arranged in an "L" shape as a whole enhances the connection stability between the hinge seat 15 and the bottom surface of the outlet guide 1. The clearance groove 501 arranged on the bottom surface of the hinge seat 15 reduces the scouring of cooling water, ensures the stability of the hinge connection between the piston rod of the oil cylinder 3 and the hinge seat 15, reduces wear, ensures the stability of the movement of the oil cylinder 3, and further ensures the stability of the translation of the outlet guide 1.

[0025] The cylinder body of the oil cylinder 3 is arranged on the fixed seat 4 through the hinge seat 2 6. The cross section of the fixed seat 4 is arranged in an inverted "mountain" shape to ensure the structural strength under a large amount of cooling water flushing, high temperature and high humidity environment, and to ensure the stability of the setting of the hinge seat 2 6. Three reinforcing ribs 7 are arranged on the fixed seat 4; the three reinforcing ribs 7 are arranged at intervals and parallel to each other; the plane where the reinforcing ribs 7 are located is parallel to the rolling center line. Further increase the structural strength of the fixed seat 4, reduce the impact of the external environment, ensure the stability of the movement of the oil cylinder 3, and ensure the stability of the translation of the outlet guide 1.

[0026] Although the utility model is described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the utility model is not limited thereto. Without departing from the spirit and essence of the utility model, a person of ordinary skill in the art may make various equivalent modifications or substitutions to the embodiments of the utility model, and these modifications or substitutions shall be within the scope of the utility model / any person of ordinary skill in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the utility model, and they shall be within the scope of protection of the utility model. Therefore, the scope of protection of the utility model shall be based on the scope of protection of the claims.

Claims

1. A hot-rolled strip exit guide drive device, comprising an exit guide (1), wherein the exit guide (1) is slidably arranged on a height-adjusting guide frame (2), and is characterized in that: The bottom surface of the outlet guide (1) is hinged with piston rods of two oil cylinders (3); the two oil cylinders (3) are symmetrically arranged with the rolling center line as the axis; the cylinder bodies of the oil cylinders (3) are hinged on the fixing seat (4); and the fixing seat (4) is fixedly arranged on the elevation adjustment guide frame (2).

2. The hot-rolled strip exit guide driving device according to claim 1, characterized in that: The piston rod of the oil cylinder (3) is hinged on an articulated seat (5); the articulated seat (5) is fixedly arranged on the bottom surface of the outlet guide (1).

3. The hot-rolled strip exit guide driving device according to claim 2, characterized in that: The hinged seat 1 (5) is arranged in an "L" shape as a whole; a clearance groove (501) is arranged on the bottom surface of the hinged seat 1 (5); and the piston rod of the oil cylinder (3) is hinged in the clearance groove (501).

4. The hot-rolled strip exit guide driving device according to claim 1, characterized in that: The cylinder body of the oil cylinder (3) is arranged on the fixed seat (4) via a second hinge seat (6).

5. The hot-rolled strip exit guide driving device according to claim 4, characterized in that: The cross section of the fixing seat (4) is arranged in an inverted "mountain" shape.

6. The hot-rolled strip exit guide driving device according to claim 5, characterized in that: A plurality of reinforcing rib plates (7) are arranged on the fixing seat (4); the plurality of reinforcing rib plates (7) are arranged at intervals and are parallel to each other; and the plane where the reinforcing rib plates (7) are located is parallel to the rolling center line.

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