Auxiliary tool for guiding and positioning working rollers of four-high rolling mill for rough rolling of plates

Abstract

The utility model discloses a plate rough rolling four-roll mill work roll guiding and positioning auxiliary tool, which comprises inserting holes, a connecting plate, a triangular plate, vertical plates, a connecting screw rod, a nut, a limiting rod, a connecting groove and a side plate, the inserting holes are uniformly arranged on the connecting plate, the vertical plates are welded on two sides of the connecting plate, the limiting rod is welded on one side of the connecting plate, and the connecting screw rod is connected with the nut. The limiting rod is inserted into a center hole formed in the side plate; a connecting groove is formed in the side plate, and a nut is arranged in the connecting groove; the nut is spirally connected to the connecting screw rod; the connecting screw rods penetrate through the through holes formed in the side plates and the vertical plates to be fixedly connected to the triangular plates. The triangular plate is connected to the connecting plate and the vertical plate in an attached mode. By means of the auxiliary tool, the guide and guard plate can be more conveniently and rapidly positioned to the roller changing position, the roller changing time of a working roller of a plate rough rolling four-roller mill is shortened, the roller changing efficiency is improved, meanwhile, the auxiliary positioning cost is reduced, and the yield and benefits of follow-up production are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plate production auxiliary tools, in particular to a plate rough rolling four-roller rolling mill working roll guide positioning auxiliary tool. Background Art

[0002] In the production of hot-rolled strip steel, process roll replacement is a necessary procedure. In the process of replacing the working roll in rough rolling, the working roll guide cannot stay in the middle position when it descends. When the guide drops to the lowest position (falling on the frame roll rack), it is exactly level with the position of the lower working roll bearing box. However, as the rack wears, the guide often gets stuck when the lower working roll is pulled out, affecting the roll replacement time. Because the guide is designed as a one-way valve, if the problem is solved, the three-valve modification needs to be redesigned, which increases the cost. At present, in the steel rolling industry, the time to replace the working roll is an important reference for measuring the capacity of the production line. The factors that affect the length of time to replace the working roll are directly related to the output and efficiency, and have a huge impact. Therefore, it is necessary to design a working roll guide positioning auxiliary tool for the four-roller mill for rough rolling of plates. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] The utility model aims to provide a work roll guide positioning auxiliary tool for a plate rough rolling four-roller rolling mill, so as to solve the existing defects. (II) Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a working roll guide positioning auxiliary tool for a four-roll plate rough rolling mill, comprising a plug-in hole, a connecting plate, a triangular plate, a vertical plate, a connecting screw, a nut, a limit rod, a connecting groove and a side plate, wherein the connecting plate is evenly provided with plug-in holes, vertical plates are welded on both sides of the connecting plate, and a limit rod is welded on one side, and the limit rod is inserted into the center hole opened in the side plate.

[0007] Preferably, a connecting groove is provided on the side plate, and a nut is arranged in the connecting groove.

[0008] Preferably, the nut is spirally connected to the connecting screw.

[0009] Preferably, the connecting screws pass through through holes formed on the side plates and the vertical plates respectively and are fixedly connected to the triangular plates.

[0010] Preferably, the triangular plate is fitted and connected to the connecting plate and the vertical plate.

[0011] (III) Beneficial effects

[0012] The utility model provides a working roll guide positioning auxiliary tool for a plate rough rolling four-roll mill, which has the advantages that the auxiliary tool can more conveniently and quickly position the guide plate to the roll changing position, shorten the roll changing time of the working roll of the plate rough rolling four-roll mill, and improve the roll changing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a front view of the overall structure of the utility model;

[0015] Figure 2 It is a front cross-sectional view of the overall structure of the utility model;

[0016] Figure 3 It is a side view of the overall structure of the utility model;

[0017] Figure 4 It is a schematic diagram of the working state of the utility model.

[0018] In the figure: 1. Plug hole; 2. Connecting plate; 3. Triangular plate; 4. Vertical plate; 5. Connecting screw; 6. Nut; 7. Limit rod; 8. Connecting groove; 9. Side plate. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] See also Figure 1-4 , the utility model provides an embodiment: a guide positioning auxiliary tool for the working roll of a plate rough rolling four-roll mill, comprising a plug-in hole 1, a connecting plate 2, a triangular plate 3, a vertical plate 4, a connecting screw 5, a nut 6, a limiting rod 7, a connecting groove 8 and a side plate 9, the connecting plate 2 is evenly provided with plug-in holes 1, the connecting plate 2 is a steel plate with a thickness of 10mm and a length of 500mm, and the material of the steel plate is Q235-B material, the vertical plates 4 are welded on both sides of the connecting plate 2, and the limiting rod 7 is welded on one side, the limiting rod 7 is inserted into the center hole opened on the side plate 9, the side plate 9 is provided with a connecting groove 8, and the connecting groove 8 is provided with a nut 6, the nut 6 is spirally connected to the connecting screw 5, the connecting screw 5 passes through the through holes opened on the side plate 9 and the vertical plate 4 respectively and is fixedly connected to the triangular plate 3, and the triangular plate 3 is fitted and connected to the connecting plate 2 and the vertical plate 4;

[0022] Specifically, when using, first of all, during the use of the auxiliary tool, when changing the roll, the operator inserts the 2-meter-long hook into the plug-in hole 1 and sends the auxiliary tool under the guide. At this time, the connecting plate 2 is in a horizontal state and is placed horizontally on the roller rack of the rolling mill frame so that the upper guide falls directly on the auxiliary tool to ensure that the height does not get stuck in the lower working roll bearing box. After pulling out and installing the working roll, the operator uses the 2-meter-long hook to plug into the plug-in hole 1 to take out the auxiliary tool. At the same time, during use, the problem that the upper working roll guide cannot stay in the middle position when descending during the rough rolling work roll replacement process is solved, and the problem that when the guide descends to the lowest position (falls on the roller rack of the frame), it is exactly level with the position of the lower working roll bearing box, but as the rack wears, the guide is often stuck when the lower working roll is pulled out, affecting the roll changing time; the problem that the guide is designed as a one-way valve and the three-valve modification needs to be redesigned, which increases the cost, thereby solving the problem of the length of time it takes to replace the working roll.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A work roll guide positioning auxiliary tool for a plate rough rolling four-high rolling mill, comprising a plug hole (1), a connecting plate (2), a triangular plate (3), a vertical plate (4), a connecting screw (5), a nut (6), a stopper rod (7), a connecting groove (8) and a side plate (9), characterized in that: The connecting plate (2) is evenly provided with plug holes (1), vertical plates (4) are welded on both sides of the connecting plate (2), and a limiting rod (7) is welded on one side, and the limiting rod (7) is inserted into a central hole provided on the side plate (9).

2. The work roll guide positioning auxiliary tool for a plate rough rolling four-high rolling mill according to claim 1, characterized in that: The side plate (9) is provided with a connecting groove (8), and a nut (6) is arranged in the connecting groove (8).

3. The work roll guide positioning auxiliary tool for a plate rough rolling four-high rolling mill according to claim 1, characterized in that: The nut (6) is screwed onto the connecting screw (5).

4. The work roll guide positioning auxiliary tool for a plate rough rolling four-high rolling mill according to claim 1, characterized in that: The connecting screw rods (5) pass through through holes provided on the side plates (9) and the vertical plates (4) respectively and are fixedly connected to the triangular plates (3).

5. The work roll guide positioning auxiliary tool for a plate rough rolling four-high rolling mill according to claim 1, characterized in that: The triangular plate (3) is fitted and connected to the connecting plate (2) and the vertical plate (4).

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