CN214160896U

CN214160896U - Inlet guide and guard device of hot-rolled strip steel finishing mill

Info

Publication number: CN214160896U
Application number: CN202022642992.1U
Authority: CN
Inventors: 张文凤; 滕英才
Original assignee: Wisdri Engineering and Research Incorporation Ltd
Current assignee: Wisdri Engineering and Research Incorporation Ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-09-10
Anticipated expiration: 2030-11-16

Abstract

The utility model provides a hot rolling strip steel finishing mill entry is led and is defended device, including two sets of subassemblies of guarding that lead, two sets of subassemblies of guarding set up in the both sides of finishing mill entrance belted steel stroke route relatively, it includes that the rolling mill leads to defend and set up the side guide on the rolling mill is led to the subassembly of guarding, the shower has been laid to the side guide upper surface, be equipped with the nozzle that a plurality of is used for spraying the cooling water to belted steel surface on the shower. The utility model discloses a through set up the shower on the side guide for to the cooling of finishing mill entry guide side guide, make the entry guide side guide can keep at a lower temperature when rolling, thereby reduced the wearing and tearing speed of side guide, improved the life of side guide, the shower can also erode the foreign matter that the friction of side guide and belted steel limit portion produced simultaneously, prevents that it from being drawn into the rolling mill, improved belted steel product quality, promote the rolling mill operating rate.

Description

Inlet guide and guard device of hot-rolled strip steel finishing mill

Technical Field

The utility model belongs to the technical field of hot rolling mechanical equipment, concretely relates to hot rolling strip steel finishing mill entry guide fittings.

Background

In the production of hot rolled strip, a guide and guard device is provided at the inlet side of the finishing mill for guiding the strip. However, the sliding friction between the side guide plate of the existing belt inlet guide and the edge of the strip steel generates filiform iron filings or abrasive grains, and the foreign body parts can be guided into the rolling mill, so that the quality defect of surface pressing is caused; on the other hand, the high-temperature strip steel passes through the guide for a long time, so that the guide at the finish rolling inlet is seriously abraded in the rolling process, and meanwhile, the strip steel is deviated due to low centering precision of the guide.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hot rolling strip steel finish rolling mill entry guide and guard device can solve the partial problem that exists among the above-mentioned prior art at least.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a hot rolling strip steel finishing mill entry is led and is defended device, includes two sets of guides and defends the subassembly, and two sets of guides and defends the subassembly and set up the both sides in finishing mill entry belted steel stroke route relatively, it leads the side guide that defends and set up on the rolling mill to lead including the rolling mill to lead the subassembly, the shower has been laid to the side guide upper surface, be equipped with the nozzle that a plurality of is used for spraying the cooling water to the belted steel surface on the shower.

Furthermore, the wear-resistant lining plate is detachably connected to one side, facing the strip steel, of the lower portion of the side guide plate.

Further, the side guide plate comprises a first plate body and a second plate body, wherein the first plate body is vertical to the upper surface of the rolling mill guide, and the second plate body is connected above the first plate body; the second plate body is perpendicular to the first plate body, and a plurality of holes for fixedly mounting the spray pipes are formed in the second plate body.

Furthermore, a lifting lug is arranged on the second plate body.

Furthermore, the spray pipes of the two groups of guide assemblies are symmetrically arranged by taking the rolling central line as a symmetry axis.

Furthermore, the inlet guide and guard device of the hot-rolled strip steel finishing mill further comprises transverse guide rails and two width adjusting oil cylinders, wherein the transverse guide rails are arranged perpendicular to the rolling central line, the two groups of guide and guard assemblies are movably connected with the transverse guide rails, the two width adjusting oil cylinders are respectively arranged at two ends of the transverse guide rails, and the movable ends of the two width adjusting oil cylinders are respectively connected to the two side guide plates.

Furthermore, a displacement sensor is arranged on the width adjusting oil cylinder.

Furthermore, the inlet guide and guard device of the hot-rolled strip steel finishing mill further comprises longitudinal guide rails and translation oil cylinders, the longitudinal guide rails are arranged in parallel to a rolling central line, and the two groups of guide and guard assemblies are driven by the translation oil cylinders to be movably connected to the longitudinal guide rails.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a hot rolling strip steel finishing mill entry is led and is defended device is through setting up the shower on the side guide, a cooling for leading and defending the side guide to the finishing mill entry, it can keep at a lower temperature to make the entry lead and defend the side guide when rolling, thereby the wearing and tearing speed of side guide has been reduced, the life of side guide has been improved, the shower can also erode the foreign matter that side guide and belted steel limit portion friction produced simultaneously, prevent that it from being drawn into the rolling mill, belted steel product quality has been improved, promote the rolling mill operating rate.

The present invention will be described in further detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural view of an inlet guide and guard device of a hot-rolled strip finishing mill of the present invention;

fig. 2 is a schematic structural view of the middle side guide plate of the present invention.

Description of reference numerals: 1. guiding and guarding of the rolling mill; 2. a side guide plate; 3. a wear-resistant lining plate; 4. lifting lugs; 5. a shower pipe; 6. a width adjusting oil cylinder; 7. a longitudinal guide rail; 8. a translation oil cylinder; 9. a transverse guide rail; 10. a nozzle; 11. a first plate body; 12. a second plate body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" or "a plurality" means two or more unless otherwise specified.

As shown in fig. 1 and fig. 2, the present embodiment provides a hot-rolled strip steel finishing mill inlet guide and guard device, which includes two sets of guide and guard assemblies, the two sets of guide and guard assemblies are disposed on two sides of a strip steel stroke path at the finishing mill inlet, the guide and guard assembly includes a rolling mill guide and guard 1 and a side guide plate 2 disposed on the rolling mill guide and guard 1, a spray pipe 5 is laid on the upper surface of the side guide plate 2, and a plurality of nozzles 10 for spraying cooling water to the strip steel surface are disposed on the spray pipe 5. In this embodiment, the spray pipes 5 are used for cooling the inlet guide side guide plate of the finishing mill, cooling water is sprayed to the surface of strip steel through the nozzles 10, the temperature of the strip steel when the strip steel passes through the side guide plate 2 is reduced, so that the side guide plate 2 can be kept at a lower temperature during rolling, the abrasion speed of the side guide plate 2 is further reduced, the service life of the side guide plate 2 is prolonged, meanwhile, the cooling water sprayed by the spray pipes 5 can also flush foreign matters generated by friction between the side guide plate 2 and the edge of the strip steel, the strip steel is prevented from being involved into the rolling mill, the quality of the strip steel product is improved, and the operation rate of the rolling mill is improved.

Detailed description of the preferred embodimentsfor the figures 1 and 2, the side guides 2 comprise a first plate 11, perpendicular to the upper surface of the rolling mill guide, and a second plate 12, connected above the first plate 11; the second plate body 12 is perpendicular to the first plate body 11, the second plate body 12 has a certain width so as to facilitate the laying of the spray pipes 5, and a plurality of holes for fixedly mounting the spray pipes 5 are formed in the second plate body 12. Optimally, in order to ensure the effect of cooling the surface of the strip steel uniformly by the cooling water sprayed by the nozzles 10, in this embodiment, the spray pipes 5 of the two sets of guide assemblies are symmetrically arranged with the rolling center line as a symmetry axis.

In order to facilitate the installation of the side guides 2, the second plate body 12 may be provided with lifting lugs 4.

Further, as shown in fig. 2, the wear-resistant lining plate 3 is detachably connected to the lower side of the side guide plate 2 towards one side of the strip steel, when the strip steel is rolled, the edge of the strip steel is in contact friction with the wear-resistant lining plate 3, so that the wear degree of the side guide plate 2 is reduced, the service life of the side guide plate 2 is prolonged, the wear-resistant lining plate 3 can be replaced after being worn to a certain degree through detachable connection design, the whole side guide plate 2 does not need to be replaced, and the cost is saved while the service life of the side guide plate 2 is prolonged. For a specific installation mode of the wear-resistant lining plate 3, a groove can be arranged below the side guide plate 2, and the wear-resistant lining plate 3 is fixedly installed in the groove through a screw plug.

In an optimized implementation manner, as shown in fig. 1, the hot-rolled strip steel finishing mill inlet guide and guard device of the embodiment further includes two transverse guide rails 9 and two width adjusting oil cylinders 6, the transverse guide rails 9 are arranged perpendicular to a rolling center line, two sets of the guide and guard assemblies are movably connected to the transverse guide rails 9, the two width adjusting oil cylinders 6 are respectively located at two ends of the transverse guide rails 9, moving ends of the two width adjusting oil cylinders 6 are respectively connected to the two side guide plates 2, and the width adjusting oil cylinders 6 drive the guide and guard assemblies to move along the transverse guide rails 9, so that the guide and guard assemblies can automatically adjust the width in the width direction, the distance between the two sets of guide and guard assemblies can be freely adjusted, the purpose of guiding the rolling of strip steel with different sizes is achieved, and the application range of the hot-rolled strip steel finishing mill inlet guide and guard device is expanded.

Further, the inlet guide and guard device of the hot-rolled strip steel finishing mill of the embodiment further comprises longitudinal guide rails 7 and translation oil cylinders 8, the longitudinal guide rails 7 are arranged in parallel to a rolling center line, and the two groups of guide and guard assemblies are movably connected to the longitudinal guide rails 7 through the driving of the translation oil cylinders 8. When the finishing mill changes the roll, the guide and guard assembly can be driven by the translation oil cylinder 8 to move along the longitudinal guide rail 7, and the guide and guard assembly is controlled to retract, so that the roll changing operation is facilitated.

The above examples are merely illustrative of the present invention and do not limit the scope of the present invention, and all designs identical or similar to the present invention are within the scope of the present invention.

Claims

1. The utility model provides a hot rolling strip steel finishing mill entry guide fittings which characterized in that: the guide and guard assembly comprises two groups of guide and guard assemblies, wherein the two groups of guide and guard assemblies are arranged on two sides of a strip steel stroke path at the inlet of a finishing mill relatively, each guide and guard assembly comprises a rolling mill guide and a side guide plate arranged on the rolling mill guide, a spray pipe is laid on the upper surface of each side guide plate, and a plurality of nozzles used for spraying cooling water to the surface of strip steel are arranged on each spray pipe.

2. The hot strip finishing mill entry guide of claim 1, wherein: and a wear-resistant lining plate is detachably connected to one side, facing the strip steel, of the lower part of the side guide plate.

3. The hot strip finishing mill entry guide of claim 1, wherein: the side guide plate comprises a first plate body vertical to the upper surface of the rolling mill guide and guard and a second plate body connected above the first plate body; the second plate body is perpendicular to the first plate body, and a plurality of holes for fixedly mounting the spray pipes are formed in the second plate body.

4. The hot strip finishing mill entry guide of claim 3, wherein: and the second plate body is provided with a lifting lug.

5. The hot strip finishing mill entry guide of claim 1, wherein: and the spray pipes of the two groups of guide assemblies are symmetrically arranged by taking the rolling central line as a symmetry axis.

6. The hot strip finishing mill entry guide of claim 1, wherein: still include transverse guide and transfer wide hydro-cylinder, transverse guide arranges perpendicular to rolling central line, and is two sets of guide subassembly swing joint is on transverse guide, transfer wide hydro-cylinder has two, is located the transverse guide both ends respectively, and two transfer wide hydro-cylinders's expansion end and connect respectively on two side guides.

7. The hot strip finishing mill entry guide of claim 6, wherein: and a displacement sensor is arranged on the width adjusting oil cylinder.

8. The hot strip finishing mill entry guide of claim 1, wherein: the rolling device is characterized by further comprising longitudinal guide rails and translation oil cylinders, wherein the longitudinal guide rails are arranged in parallel to a rolling central line, and the two groups of guide assemblies are movably connected to the longitudinal guide rails through the translation oil cylinders in a driving mode.