CN210305112U

CN210305112U - Hot rolling strip steel coiler mandrel structure

Info

Publication number: CN210305112U
Application number: CN201920886759.2U
Authority: CN
Inventors: 徐真军; 顾海峰; 钱智君; 韦培友
Original assignee: Zhangjiagang Pohang Stainless Steel Co Ltd
Current assignee: Zhangjiagang Pohang Stainless Steel Co Ltd
Priority date: 2019-06-13
Filing date: 2019-06-13
Publication date: 2020-04-14
Anticipated expiration: 2029-06-13

Abstract

The utility model discloses a winding drum structure of a hot rolled strip steel coiler, which comprises a winding drum body, wherein a jaw is arranged on the winding drum body; the winding drum is characterized in that the jaws comprise a first jaw and a second jaw, the tail end of the first jaw and the tail end of the second jaw extend into the winding drum body, the second jaw is fan-shaped, the cambered surface of the second jaw is in smooth transition with the excircle of the winding drum, and the distance between the cambered surface and the excircle of the winding drum body at the starting end of the second jaw is 10-20 mm; the distance between the first jaw and the second jaw is gradually reduced from the starting end to the tail end, and the distance between the starting end of the first jaw and the starting end of the second jaw is 250-400 mm; the vertical distance between the tail end of the first jaw and the tail end of the second jaw is 112-180 mm. The utility model has the advantages that the size of the jaw is increased, which can effectively reduce the failure rate of the biting process; the transition arc depth is increased, so that the tension fluctuation of the strip steel can be effectively reduced, the scratch on the surface of the strip steel is reduced, the surface quality is improved, and the defective rate is reduced.

Description

Hot rolling strip steel coiler mandrel structure

Technical Field

The utility model belongs to the metallurgical equipment field especially relates to a hot rolling strip steel coiler mandrel structure.

Background

Hot rolling Steckel-Mill (Steckel-Mill) is a reversing sheet rolling Mill. The method is mainly characterized in that as shown in figure 1, coil furnaces are arranged at two sides of a finishing mill (the coil furnaces have a heating function and coil in the furnaces), so that the heat preservation of the steel plate coils in the furnaces is realized, and the temperature drop of the steel plate during rolling is reduced. In the rolling production of the strip, the strip needs to pass through the head and the tail in a reciprocating way under the coordination of a winding drum, as shown in the winding drum style and the operation sketch map of a winding furnace in a figure 2, the operation sketch [ A ] is a biting process, [ B ] is an intermediate operation process, and [ C ] is a normal winding process completed by biting the strip steel. The defects are that in the actual production process, the bite of the strip steel fails due to the small jaw size of the winding drum in the bite of the strip steel, and waste products are generated; in addition, the steel strip coiling process always needs one more circle of steel strip thickness at the bite bending part, the thickness difference is one of interference sources of steel strip tension fluctuation when the steel strip runs under the tension condition, and the tension fluctuation can cause the scratch of the product surface and produce defective products.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a winding drum structure of a hot rolling strip steel coiler, wherein the size of a jaw is designed to effectively reduce the failure rate of the biting process; the jaw structure is improved, so that the tension fluctuation of the strip steel is effectively reduced, the scratch on the surface of the strip steel is reduced, the surface quality is improved, and the defective rate is reduced.

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

a winding drum structure of a hot rolled strip steel coiler comprises a winding drum body, wherein a jaw for biting strip steel is arranged on the winding drum body; the strip steel coiling device is characterized in that the jaws comprise a first jaw and a second jaw which are oppositely arranged, the starting end of the first jaw and the starting end of the second jaw are connected with the coiling block body, the tail end of the first jaw and the tail end of the second jaw extend into the coiling block body, the second jaw is in a fan shape, the arc surface of the second jaw is in smooth transition with the excircle of the coiling block, the distance between the arc surface and the excircle of the coiling block body at the starting end of the second jaw is 10-20 mm, and the distance between the arc surface and the excircle of the coiling block at the starting end of the second jaw enables strip steel not to exceed the excircle of the coiling block body after the strip; the distance between the first jaw and the second jaw is gradually reduced from the starting end to the tail end, and the distance between the starting end of the first jaw and the starting end of the second jaw is 250-400 mm; the perpendicular distance between the tail end of the first jaw and the tail end of the second jaw is 112-180 mm.

Furthermore, the tail end of the first jaw and the starting end of the second jaw are respectively arranged on two sides of the winding drum body with the same diameter.

Further, the distance between the starting end of the first jaw and the starting end of the second jaw is 400mm, the perpendicular distance between the tail end of the first jaw and the tail end of the second jaw is 180mm, and the distance between the starting end of the second jaw and the excircle of the winding drum body of the cambered surface is 20 mm.

Further, a first chamfer angle is arranged between the starting end of the first jaw and the outer circle of the winding drum body.

Further, the first chamfer is a fillet.

Further, a second chamfer is arranged between the starting end of the second jaw and the cambered surface.

Further, the second chamfer is a fillet.

Compared with the prior art, the utility model has the advantages that the size of the jaw is increased, so that the failure rate of the biting process can be effectively reduced; the transition arc depth is increased, so that the tension fluctuation of the strip steel can be effectively reduced, the scratch on the surface of the strip steel is reduced, the surface quality is improved, and the defective rate is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic of a prior art hot rolling Steckel Mill (Steckel Mill) layout.

Fig. 2 is a schematic view of the reel style and operation in a prior art reel furnace as follows.

Fig. 3 is a schematic view of the structure of the winding drum of the present invention.

In the figure: 1-a reel body 2-a first jaw 3-a second jaw 4-a first jaw starting end 5-a second jaw starting end 6-a first jaw tail end 7-a second jaw tail end 8-an arc surface 9, a first chamfer 10-a second chamfer.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the utility model, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the utility model.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of 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 thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be interpreted broadly, e.g. as a fixed connection, a detachable connection or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the utility model can be understood in specific cases to those of ordinary skill in the art.

As shown in fig. 3, a winding drum structure of a hot rolled strip steel coiler comprises a winding drum body 1, wherein a jaw for biting strip steel is arranged on the winding drum body 1; the strip steel coiling reel is characterized in that the jaws comprise a first jaw 2 and a second jaw 3 which are oppositely arranged, a first jaw starting end 4 of the first jaw 2 and a second jaw starting end 5 of the second jaw 3 are connected with the reel body 1, a first jaw tail end 6 of the first jaw 2 and a second jaw tail end 7 of the second jaw 3 extend into the reel body 1, the second jaw 3 is fan-shaped, an arc surface 8 of the second jaw 3 is in smooth transition with the excircle of the reel, the distance A between the arc surface 8 and the excircle of the reel body 1 at the starting end of the second jaw 3 is 10-20 mm, and the distance between the arc surface 8 and the excircle of the reel body at the starting end of the second jaw 3 enables strip steel not to exceed the excircle of the reel body 1 after the second jaw 3 is bent; the distance between the first jaw 2 and the second jaw 3 is gradually reduced from the starting end to the tail end, and the distance C between the starting end 4 of the first jaw and the starting end 5 of the second jaw is 250-400 mm; the vertical distance B between the first jaw end 6 and the second jaw end 7 is 112-180 mm.

The tail end 6 of the first jaw and the starting end 5 of the second jaw are respectively arranged on two sides of the winding drum body with the same diameter.

The distance C between the first jaw starting end 4 and the second jaw starting end 5 is 400mm, the perpendicular distance B between the first jaw tail end 6 and the second jaw tail end 7 is 180mm, and the distance A between the second jaw starting end 5 and the excircle of the winding drum body 1 by the cambered surface 8 is 20 mm.

A first chamfer 9 is arranged between the first jaw starting end 4 and the outer circle of the winding drum body 1.

The first chamfer 9 is a fillet.

A second chamfer 10 is arranged between the starting end 5 of the second jaw and the cambered surface 8.

The second chamfer 10 is a rounded corner.

The utility model discloses a hot rolling strip steel coiler mandrel structure is the same with prior art mandrel structure application method, specifically can refer to fig. 2.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A winding drum structure of a hot rolled strip steel coiler comprises a winding drum body, wherein a jaw for biting strip steel is arranged on the winding drum body; the method is characterized in that: the jaws comprise a first jaw and a second jaw which are oppositely arranged, the starting end of the first jaw and the starting end of the second jaw are connected with the winding drum body, the tail end of the first jaw and the tail end of the second jaw extend into the winding drum body, the second jaw is fan-shaped, the arc surface of the second jaw is in smooth transition with the excircle of the winding drum, the distance between the arc surface and the excircle of the winding drum body at the starting end of the second jaw is 10-20 mm, and the distance between the arc surface and the excircle of the winding drum at the starting end of the second jaw enables strip steel not to exceed the excircle of the winding drum body after the strip steel is bent at the second jaw; the distance between the first jaw and the second jaw is gradually reduced from the starting end to the tail end, and the distance between the starting end of the first jaw and the starting end of the second jaw is 250-400 mm; the perpendicular distance between the tail end of the first jaw and the tail end of the second jaw is 112-180 mm.

2. The hot strip coiler drum structure according to claim 1, characterized in that: the tail end of the first jaw and the starting end of the second jaw are respectively arranged on two sides of the winding drum body with the same diameter.

3. The hot strip coiler drum structure according to claim 1 or 2, characterized in that: the distance between the starting end of the first jaw and the starting end of the second jaw is 400mm, the perpendicular distance between the tail end of the first jaw and the tail end of the second jaw is 180mm, and the distance between the starting end of the second jaw and the excircle of the winding drum body of the cambered surface is 20 mm.

4. The hot rolled strip steel coiler drum structure according to claim 3, characterized in that: a first chamfer is arranged between the starting end of the first jaw and the outer circle of the winding drum body.

5. The hot strip coiler drum structure according to claim 4, characterized in that: the first chamfer is a fillet.

6. The hot rolled strip steel coiler drum structure according to claim 3, characterized in that: and a second chamfer is arranged between the starting end of the second jaw and the cambered surface.

7. The hot strip coiler drum structure according to claim 6, characterized in that: the second chamfer is a fillet.