Roll system protection device of twenty-high roll mill

Abstract

The invention 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. The device can be broken under the instant huge impact force when the strip steel is broken, and the roller and the backing bearing are protected.

Description

Technical Field

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

[0002] The rolling force of the twenty-high mill is large. The rolling speed is high, the strip tension is large, and the strip is easily broken during the rolling process. The strip breakage has a great impact on the roll system of the twenty-high mill. The rolls and backing bearings in the roll system are often damaged due to the broken strip, which seriously affects the mill operation rate and causes high roll consumption per ton of steel. The procurement cost of various rolls and backing bearing spare parts of the twenty-high mill roll system is high. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a twenty-high rolling mill roll system protection device to solve the problem of damage to the rollers and backing bearings in the roll system caused by belt breakage.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A twenty-high rolling mill roll system protection device, the protection device is made of copper, 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 convex block body, a wedge body and a guide groove connected in sequence, the side surfaces of the convex block body, the wedge body and the guide groove are flush, which is the base side surface, the convex block body is a narrow upper and wide lower structure, the bottom of the convex block 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 face end of the wedge body is equal to the thickness of the convex block body, a right-angle notch is provided on the top of the convex block body, the convex block 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 body is inclinedly transitioned to the top of the wide surface end of the wedge surface body.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] The protective device of the present invention is made of copper material, which is easy to break under the action of external force. Under the instantaneous huge impact force when the strip breaks, the wedge-shaped body with one end larger than the other end of the protective device can break at the boundary to release stress, thereby avoiding damage to the rollers and backing bearings of the rolling system due to the huge impact force when the strip breaks during rolling. A large amount of spare parts costs for the rolling system can be saved, and long-term shutdown of the rolling mill caused by processing and replacing damaged rollers and backing bearings can be avoided, greatly improving the production efficiency and operation rate of the rolling mill. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the present invention.

[0013] Figure 2 It is a schematic diagram of the structure 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 convex block body 11, a wedge surface body 12, a guide groove 13, a right-angle notch 14, a pin shaft 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 in the embodiments may 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 positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like 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 the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 by specific circumstances.

[0018] like Figure 1-Figure 2 A twenty-high rolling mill roll system protection device, the protection device is made of copper, one end of the protection device 1 is connected to the rolling mill body 3 through a spring pull rod 2, and the other end is movably connected to a slide rail 5 of an intermediate roller 4, the protection device 1 includes a convex block 11, a wedge body 12 and a guide groove 13 connected in sequence, one side of the convex block 11, the wedge body 12 and the guide groove 13 is flush, which is the base side, the convex block 11 is a narrow upper and wide lower structure, the bottom of the convex block 11 is as wide as the wedge body 12 The two sides of the wedge body 12 in the thickness direction 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 face end of the wedge body 12 is equal to the thickness of the convex block 11. A right-angle notch 14 is provided on the top of the convex block 11. The convex block 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. The slide rail groove 16 is slidably connected to the slide rail 5 of an intermediate roller 4.

[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 protruding block 11 and the guiding groove 13 have the same thickness.

[0022] The lower portion of one side of the protruding block 11 is inclined to transition to the top of the wide surface 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 belong to the protection scope 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 without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations. In addition, the various different embodiments of the present invention can also be arbitrarily combined, as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

[0024] In order to make the purpose, technical scheme and technical effect of the present invention clearer, the technical scheme in the embodiment of the present invention is now clearly and completely described. However, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. In combination with 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.

[0025] Example 1

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

[0027] The side surfaces of the convex block 11, the wedge surface 12 and the guide groove 13 are flush, which is the base side surface. The convex block 11 is narrow at the top and wide at the bottom. The bottom of the convex block 11 is equal in width to the wedge surface 12. The lower part of one side of the convex block 11 is inclined to transition to the top of the wide surface end of the wedge surface 12. The thickness of the convex block 11 is the same as that of the guide groove 13. The width of the guide groove 13 is half the width of the wedge surface 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 side 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 rolling mill roll system protection device, one end of the protection device 1 is connected to the rolling mill body 3 through a spring pull rod 2, and the other end is movably connected to a slide rail 5 of an intermediate roller 4. The protection device 1 includes a convex block 11, a wedge body 12 and a guide groove 13 connected in sequence, and the convex block 11, the wedge body 12 and the guide groove 13 are made of copper. The convex block 11, the wedge body 12 and the guide groove 13 are welded.

[0030] The convex block 11, the wedge-shaped body 12 and one side of the guide groove 13 are flush as the base side surface, the convex block 11 is a structure of narrow upper part and wide lower part, the bottom of the convex block 11 is equal in width to the wedge-shaped body 12, and the lower part of one side of the convex block 11 is inclined to transition to the top of the wide surface end of the wedge-shaped body 12. The convex block 11 has the same thickness as the guide groove 13. The width of the guide groove 13 is half the width of the wedge-shaped body 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 surface end of the wedge body 12 is equal to the bottom surface 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 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 basic 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 twenty-high mill roll protection device, characterized in that: The protection device is made of copper, one end of which 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 convex block body, a wedge body and a guide groove which are connected in sequence. The side surfaces of the convex block body, the wedge body and the guide groove are flush, which is the base side surface. The convex block body is a narrow upper and wide lower structure. The bottom of the convex block 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 face end of the wedge body is equal to the thickness of the convex block body. A right-angle notch is provided on the top of the convex block body. The convex block 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, which 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. A twenty-high mill roll protection device according to claim 1, characterized in that: The lower part of one side of the convex block body is inclinedly transitioned to the top of the wide surface end of the wedge surface body.

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