Roll system protection device of twenty-high roll mill

Abstract

The utility model relates to a twenty-high roll mill roll system protection device which is made of copper materials, one end of the protection device is connected with a mill body through a spring pull rod, the other end of the protection device is movably connected with a sliding rail of an intermediate roll, and the protection device comprises a protruding block body, a wedge face body and a guide groove which are sequentially connected. One side face of the protruding block body, one side face of the wedge face body and one side face of the guide groove are flush and serve as a base side face, the protruding block body is of a narrow-end-up structure, the width of the bottom of the protruding block body is equal to that of the wedge face body, the two side faces in the thickness direction of the wedge face body are symmetrical inclined faces, and the thickness of the wedge face body is gradually increased from the base side face to the other side. The thickness of the wide face end of the wedge face body is equal to that of the protruding block body, a right-angle opening is formed in the top of the protruding block body, the protruding block body is connected with a spring pull rod at the right-angle opening through a pin shaft, and a sliding rail groove is formed in the lower bottom face of the guide groove and is in sliding connection with a sliding rail of a middle roller. And under the instant huge impact force when the strip steel is broken, the strip steel can be broken, and the roller and the backing bearing are protected.

Description

Technical Field

[0001] The utility model relates to the technical equipment field of cold rolling multi-roller mills, in particular to a twenty-roller mill roll system protection device. Background Art

[0002] The 20-high mill has high rolling force, high rolling speed, and high strip tension. Strip breakage is very likely to occur during the rolling process, which has a significant impact on the mill's roll train. Strip breakage often damages the rolls and backing bearings in the roll train, severely impacting mill availability and leading to high roll consumption per ton of steel. This also results in high procurement costs for spare parts for the various rolls and backing bearings in the 20-high mill's roll train. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a twenty-high mill roll system protection device to solve the problem that the rollers and backing bearings in the roll system are damaged due to belt breakage.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A twenty-high rolling mill roll system protection device, one end of the protection device is connected to the rolling mill body through a spring pull rod, and the other end is movably connected to the slide rail of an intermediate roller. The protection device includes a protrusion body, a wedge body and a guide groove connected in sequence. The side surfaces of the protrusion body, the wedge body and the guide groove are flush, which is the base side surface. The protrusion body is a narrow upper side and wide lower side structure. The bottom of the protrusion body is equal to the width of the wedge body. The two side surfaces in the thickness direction of the wedge body are symmetrical inclined surfaces. The thickness of the wedge body gradually increases from the base side surface to the other side. The thickness of the wide end of the wedge body is equal to the thickness of the protrusion body. A right-angle notch is provided on the top of the protrusion body. The protrusion body is connected to the spring pull rod at the right-angle notch through a pin shaft. The lower bottom surface of the guide groove is provided with a slide rail groove, and the slide rail groove is slidably connected to the slide rail of an intermediate roller.

[0006] The convex block, wedge-shaped body and guide groove are integrally formed or welded.

[0007] The material of the convex block, the wedge-shaped body and the guide groove is copper.

[0008] The thickness of the convex block is the same as that of the guide groove.

[0009] The lower part of one side of the convex block is inclinedly transitioned to the top of the wide surface end of the wedge-shaped body.

[0010] Compared with the existing technology, the beneficial effects of the utility model are:

[0011] This new protective device is made of copper, which is prone to breaking under external forces. However, when the strip breaks, the wedge-shaped body (large at one end and small at the other) breaks at the boundary, releasing the stress. This prevents damage to the rollers and backing bearings caused by the impact of the strip break during rolling. This significantly reduces the cost of roller spare parts and avoids the long mill downtime associated with replacing damaged rollers and backing bearings, significantly improving the mill's production efficiency and operating rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the present utility model.

[0013] Figure 2 Schematic diagram of the protection device.

[0014] In the figure: a protective device 1, a spring pull rod 2, a rolling mill body 3, an intermediate roller 4, a slide rail 5, a protruding block 11, a wedge-shaped body 12, a guide groove 13, a right-angle notch 14, a pin 15, and a slide rail groove 16. DETAILED DESCRIPTION

[0015] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0016] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means more than two.

[0017] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0018] like Figure 1-Figure 2 The cam 12 is connected to the roller 3 of the intermediate roller 4 by a spring pull rod 2, and the other end is movably connected to the slide rail 5 of an intermediate roller 4. The cam 12 is connected to the roller 3 of the intermediate roller 4 by a spring pull rod 2. The cam 12 is connected to the roller 3 of the intermediate roller 4 by a spring pull rod 2. The cam 12 is connected to the roller 3 of the intermediate roller 4 by a spring pull rod 2. The cam 12 is connected to the roller 3 of the intermediate roller 4 by a spring pull rod 2. The cam 12 is connected to the roller 3 of the intermediate roller 4 by a spring pull rod 2. The cam 12 is connected to the roller 3 of the intermediate roller 4 by a spring pull rod 2. The cam 12 is connected to the roller 3 of the intermediate roller 4 by a spring pull rod 2. The cam 12 is connected to the roller 3 of the intermediate roller 4 by a spring pull rod 2. The cam 12 is connected to the roller 3 of the intermediate roller 4 by a spring pull rod 2.

[0019] The convex block 11, the wedge-shaped body 12 and the guide groove 13 are integrally formed or welded.

[0020] The material of the protruding block 11 , the wedge-shaped body 12 and the guide groove 13 is copper.

[0021] The thickness of the protruding block 11 and the guide groove 13 are the same.

[0022] The lower portion of one side of the protruding block 11 is inclined to transition to the top of the wide end of the wedge-shaped body 12 .

[0023] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all fall within the scope of protection of the present invention. It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner unless there is any contradiction. In order to avoid unnecessary repetition, the present invention will no longer describe various possible combinations separately. In addition, the various different embodiments of the present invention can also be arbitrarily combined, and as long as they do not violate the idea of the present invention, they should also be regarded as the contents disclosed by the present invention.

[0024] To make the purpose, technical solution, and technical effects of the present invention more clearly understood, the technical solutions in the embodiments of the present invention are now described clearly and completely. However, the embodiments described below are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art without inventive effort in conjunction with the embodiments of the present invention are also within the scope of protection of the present invention.

[0025] Example 1

[0026] A twenty-high rolling mill roll protection device. One end of the protection device 1 is connected to the rolling mill body 3 via a spring pull rod 2, and the other end is movably connected to the slide rail 5 of an intermediate roll 4. The protection device 1 includes a protrusion 11, a wedge 12, and a guide groove 13, which are connected in sequence. The protrusion 11, wedge 12, and guide groove 13 are made of copper. The protrusion 11, wedge 12, and guide groove 13 are integrally cast.

[0027] The side surfaces of the projection 11, wedge 12, and guide groove 13 are flush, forming the base side surface. The projection 11 is narrow at the top and wide at the bottom. The bottom of the projection 11 is the same width as the wedge 12, and the lower portion of one side of the projection 11 slopes toward the top of the wide end of the wedge 12. The thickness of the projection 11 and the guide groove 13 are the same. The width of the guide groove 13 is half the width of the wedge 12.

[0028] The two side surfaces in the thickness direction of the wedge body 12 are symmetrical inclined surfaces. The thickness of the wedge body 12 gradually increases from the base side to the other side. The thickness of the wide end of the wedge body 12 is equal to the thickness of the protruding block body 11. A right-angle notch 14 is provided on the top of the protruding block body 11. The right-angle notch 14 is connected to the spring pull rod 2 through a pin shaft 15. A slide rail groove 16 is provided on the lower bottom surface of the guide groove 13. The slide rail groove 16 is slidably connected to the slide rail 5 of an intermediate roller 4.

[0029] A twenty-high mill roll protection device. One end of the protection device 1 is connected to the mill body 3 via a spring pull rod 2, and the other end is movably connected to the slide rail 5 of an intermediate roll 4. The protection device 1 includes a protrusion 11, a wedge 12, and a guide groove 13 connected in sequence. The protrusion 11, wedge 12, and guide groove 13 are made of copper. The protrusion 11, wedge 12, and guide groove 13 are welded together.

[0030] The base side of the protrusion 11, wedge 12, and guide groove 13 is flush with one side. The protrusion 11 is narrow at the top and wide at the bottom. The bottom of the protrusion 11 is the same width as the wedge 12, and the lower portion of one side of the protrusion 11 slopes toward the top of the wide end of the wedge 12. The protrusion 11 and the guide groove 13 have the same thickness. The width of the guide groove 13 is half the width of the wedge 12.

[0031] The two side surfaces in the thickness direction of the wedge body 12 are symmetrical inclined surfaces. The thickness of the wedge body 12 gradually increases from the base side to the other side. The wide end of the wedge body 12 is equal to the bottom thickness of the protruding block body 11. A right-angle notch 14 is provided on the top of the protruding block body 11. The protruding block body 11 is connected to the spring pull rod 2 at the right-angle notch 14 through a pin shaft 15. A slide rail groove 16 is provided on the lower bottom surface of the guide groove 13, and the slide rail groove 16 is slidably connected to the slide rail 5 of an intermediate roller 4.

[0032] 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 variations may be made to these embodiments without departing from the principles and basic spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A twenty-high mill roll protection device, characterized in that: One end of the protective device is connected to the rolling mill body through a spring pull rod, and the other end is movably connected to the slide rail of an intermediate roller. The protective device includes a protrusion body, a wedge body and a guide groove connected in sequence. The side surfaces of the protrusion body, the wedge body and the guide groove are flush, which is the base side surface. The protrusion body is a narrow upper and wide lower structure. The bottom of the protrusion body is equal to the width of the wedge body. The two side surfaces in the thickness direction of the wedge body are symmetrical inclined surfaces. The thickness of the wedge body gradually increases from the base side surface to the other side. The thickness of the wide end of the wedge body is equal to the thickness of the protrusion body. A right-angle notch is provided on the top of the protrusion body. The protrusion body is connected to the spring pull rod at the right-angle notch through a pin shaft. The lower bottom surface of the guide groove is provided with a slide rail groove, and the slide rail groove is slidably connected to the slide rail of an intermediate roller.

2. A twenty-high mill roll protection device according to claim 1, characterized in that: The convex block, wedge-shaped body and guide groove are integrally formed or welded.

3. A twenty-high mill roll protection device according to claim 1, characterized in that: The material of the convex block, the wedge-shaped body and the guide groove is copper.

4. A twenty-high mill roll protection device according to claim 1, characterized in that: The thickness of the convex block is the same as that of the guide groove.

5. The twenty-high mill roll protection device according to claim 1, characterized in that: The lower part of one side of the convex block is inclinedly transitioned to the top of the wide surface end of the wedge-shaped body.

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