WO2014114093A1

WO2014114093A1 - Rolling mill capable of rolling vertically and horizontally

Info

Publication number: WO2014114093A1
Application number: PCT/CN2013/083372
Authority: WO
Inventors: 陈义; 李图学; 李跃林; 杨虎成; 牛强
Original assignee: 中冶赛迪工程技术股份有限公司
Priority date: 2013-01-24
Filing date: 2013-09-12
Publication date: 2014-07-31
Also published as: CN103042032B; CN103042032A

Abstract

A rolling mill capable of rolling vertically and horizontally comprises a rack component and a roller component. The rack component comprises a mouth-shaped frame (1), and the mouth-shaped frame is formed by two semi frames (111) through a connecting piece in detachable mode. The roller component comprises a roller frame (2) and two driving rollers (3) arranged on the roller frame. The roller frame can be fixed in a mouth-shaped window of the mouth-shaped frame in two modes that the driving rollers are vertically arranged and the driving rollers are horizontally arranged. An arrangement mode of the rollers of the rolling mill can be switched. According to a product requirement, a vertical rolling process or a horizontal rolling process can be selected. The rolling mill has strong applicability and good universality. The mouth-shaped frame is strong in rigidity, good in bearing, and convenient in roller changing.

Description

Rolling mill for vertical rolling

TECHNICAL FIELD The present invention relates to a rolling mill apparatus, and more particularly to a steel rolling mill. BACKGROUND OF THE INVENTION At present, profiles such as hot-rolled H-beams and rails are generally rolled by a universal rolling mill. The horizontal rolls and vertical rolls of the universal rolling mill together form a section of H-beam or rail, as described in US Pat. No. 5,553,475 A, the cross-sectional shape thereof. In the H shape, the H-beam is rolled in a flat position. In the rolling process, the upper and lower horizontal rolls are driven rollers, and the left and right vertical rolls are driven rolls, and the rolled intermediate body has an X shape. The upper and lower horizontal rolls are active rolls, and the left and right vertical rolls are driven rolls. The rolling mill can be called a horizontal universal rolling mill. It is a universal rolling mill structure type that has been used in steel rolling production. Its structure is as patent ZL201110025614. .1 or ZL201110280861.6, the horizontal universal rolling mill structure, because the horizontal rolls can only be installed in the horizontal direction, driven by the power source as the active rolls, therefore, only horizontal rolling process can be used for production, resulting in When rolling H-beam or rail, when the rolling stock enters the universal rolling mill, the cooling water of the rolling roll will accumulate in the upper groove of the rolling stock, the temperature of the part where the rolling piece is in contact with the cooling water is fast, the mechanical properties are deteriorated, and the finished product rate is caused. Low, uneven performance of the organization and other issues.

At the same time, the horizontal universal rolling mill in the prior art is a fixed horizontal rolling mode, which is a universal rolling mill which cannot be converted into a permanent rolling, and has a single rolling method and is inferior in adaptability. SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to provide a rolling mill that can be used for vertical rolling, so that the rolling mill can realize vertical rolling, horizontal rolling can also be realized, and the rolling capacity of the rolling mill can be expanded to meet different workpieces. Rolling demand to improve product rolling quality.

The rolling mill for vertical rolling of the present invention comprises a frame assembly and a roll assembly, the frame assembly comprising a mouth frame for fixing the roll assembly, the mouth frame being detachable by the two half frames through the joint The split assembly comprises a roll stand and two active rolls disposed on the roll stand, and the roll stand can be fixed in two ways: the active roll is arranged vertically and the active roll is horizontally arranged. In the lip window of the lip frame.

Further, the half frame is c-shaped, and the upper and both sides of the lip frame are provided with connecting shaft through holes;

Further, the connecting member includes a pull rod that is worn on the two half frames, a pre-tightening hydraulic cylinder fixed to one of the half frames, and a latch fixed to the other half frame, one end of the pull rod and the pre-tightening hydraulic cylinder The piston is fixedly connected, and the other end of the pull rod is detachably connected with the plug;

Further, the lip frame is provided with a driving roller gap adjusting cylinder for pushing the active roller;

Further, the roller frame is further provided with two driven rollers whose axial direction is perpendicular to the active roller in a detachable manner;

Further, the lip frame is further provided with a driven roller gap adjusting cylinder for pushing the two driven rollers.

The beneficial effects of the invention:

1. The rolling mill used in the vertical rolling of the invention is fixed in the mouth window of the mouth frame according to the vertical arrangement of the active rolls, so that the rolling mill can roll the H-shaped steel in a vertical manner, which can avoid The cooling water accumulates on the H-shaped steel, and the parts of the rolled piece are cooled more uniformly. The rolling mill can be converted due to the arrangement of the rolls, and the vertical rolling process or the horizontal rolling process can be selected according to the product requirements. The rolling mill has strong adaptability and can meet the requirements. The diverse needs of the production process, good versatility, can improve the rolling quality and yield of the rolling mill.

2. The rolling mill used in the vertical rolling of the present invention fixes the roll assembly through the detachable mouth frame, the sides of the mouth frame are mutually supported, the rigidity is large, the bearing is good, and the rolling demand can be satisfied; The frame can be easily opened, and the roll assembly can be easily taken out when changing the roll, which can improve the maintenance work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing the three-dimensional structure of a rolling mill used for vertical rolling in a state in which a mouth frame is separated; FIG. 2 is a three-dimensional structure diagram of a rolling mill used in a vertical rolling process in a state in which a mouth frame is closed. Figure 3 is a cross-sectional structural view showing the active rolls of the rolling mill used in the vertical rolling process of the present invention in a vertical arrangement;

Figure 4 is a schematic view showing the structure of Figure 3 in the state in which the driven roller is eliminated;

Figure 5 is a cross-sectional view showing the horizontal arrangement of the active rolls of the rolling mill used in the vertical rolling process of the present invention Schematic;

Fig. 6 is a schematic view showing the structure of Fig. 5 in a state where the driven roller is eliminated. DETAILED DESCRIPTION OF THE INVENTION The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in FIG. 1, the rolling mill used in the present embodiment can be used for vertical rolling, including a frame assembly and a roll assembly, and the frame assembly includes a mouth frame 1 for fixing a roll assembly, and the mouth frame 1 is The two half frames 111 are formed by a detachable connection of a connecting piece comprising a roll stand 2 and two active rolls 3 arranged on the roll stand 2, which can be vertically aligned by the active roll 3 The arrangement (shown in Figures 1, 2, 3 and 4) and the active roll 3 are arranged horizontally (as shown in Figures 5 and 6) in two ways in the lip window of the lip frame 1.

In a specific implementation, the active rolls 3 may be selected to be vertically arranged or the active rolls 3 are horizontally arranged according to the requirements of the rolling process. For example, when rolling H-shaped steel, in order to avoid the accumulation of cooling water on the H-shaped steel, to ensure more uniform cooling of each part of the rolled piece, and to improve the quality and yield of the rolling mill, the active roll 3 can be vertically arranged to realize the stand. Rolling. When the rolling shape is simple, there is no profile steel accumulated by the cooling water, and the horizontal arrangement of the active rolls 3 can be adopted, and the rolling stability is better. In this embodiment, the rolling mill can be used for vertical rolling, and the rolling use mode is large, which can meet the diverse needs of the production process and has good versatility.

As a modification of the embodiment, the half frame 111 is C-shaped, and the upper and both sides of the lip frame 1 are provided with connecting shaft through holes 4, and the mouth frame 1 is formed by two C-shaped half frames 111. The lip frame 1 has a simple structure and good rigidity.

As a modification of the embodiment, the connecting member includes a tie rod 5 that is worn on the two half frames 111, a pretensioning hydraulic cylinder 6 fixed to one of the half frame 111, and a latch 7 that is fixed to the other half frame 111. One end of the pull rod 5 is fixedly connected with the piston of the pre-tightening hydraulic cylinder 6, and the other end of the pull rod 5 is detachably connected with the plug 7; the plug 7 is inserted into the pin hole of the pull rod 5, and is pre-tightened The hydraulic cylinder 6 pulls the tie rod 5, and the two half frames 111 are joined together, and the roller frame 2 is also tightly held by the two half frames 111 in the lip window of the lip frame 1; 2 The disassembly and assembly are simple and convenient, which can improve work efficiency. Of course, in different embodiments, the connecting member can also adopt other forms, such as the bolt 5 can be replaced by a bolt, and the pair of the half frame 111 can also be achieved by pulling the bolt through the nut. And, in a specific embodiment, the port The frame 1 is provided with a positioning card slot 8, and the roller frame 2 is also provided with a conventional positioning structure such as a positioning card slot 8 and a positioning pin 9 to ensure a positional cooperation relationship between the roller frame 2 and the lip frame 1.

As a modification of the embodiment, the mouth frame 1 is provided with a driving roller gap adjusting cylinder 10 for pushing the driving roller 3. In this embodiment, the driving roller gap adjusting cylinder 10 is specifically located on the lip window of the lip frame 1. Four corners, of course, the specific position can be appropriately adjusted according to the needs in the specific implementation. By controlling the active roller gap to adjust the piston position of the cylinder 10, the distance between the two active rolls 3 can be conveniently and accurately adjusted to obtain different rolling paths. The size of the hole type.

As a modification of the embodiment, as shown in FIG. 3 and FIG. 5, the roller frame 2 is also detachably provided with two driven rollers 11 axially perpendicular to the axial direction of the active roller 3, and the structure is such that The rolling mill is a four-roll universal mill suitable for rolling of H-beams or rails. Of course, in different embodiments, the driven roller 11 can also be detached from the roller frame 2 (as shown in FIGS. 4 and 6), so that the four-roll mill can be turned into a two-roll mill to meet different workpieces. Rolling is required to make the rolling mill wider.

As a modification of the embodiment, the mouth frame 1 is further provided with a driven roller gap adjusting cylinder 12 for pushing the two driven rollers 11. In this embodiment, the moving roller gap adjusting cylinder 12 is specifically located in the lip frame 1 In the middle of the four sides of the upper port type window, of course, the specific position of the upper port type can be appropriately adjusted according to the needs, and the distance between the two driven rolls 11 can be conveniently and accurately adjusted by controlling the position of the piston of the cylinder 12 by controlling the driven roller gap. To obtain the hole size of different rolling passes.

The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to be limiting, and the present invention will be described in detail with reference to the preferred embodiments. Modifications or equivalents are intended to be included within the scope of the appended claims.

Claims

claims

1. A rolling mill that can be used for vertical and horizontal rolling, including a frame assembly and a roll assembly, characterized in that: the frame assembly includes a mouth frame for fixing the roll assembly, and the mouth frame is composed of two half-sides The frame is detachably connected through connectors. The roller assembly includes a roller frame and two active rollers arranged on the roller frame. The roller frame can be arranged vertically and horizontally according to the active roller arrangement. The method is fixed in the mouth shape window of the mouth shape frame.

2. The rolling mill capable of vertical and horizontal rolling according to claim 1, characterized in that: the half frame is C-shaped, and the upper part and both sides of the mouth frame are provided with connecting shaft through holes.

3. The rolling mill capable of vertical and horizontal rolling according to claim 1, characterized in that: the connecting member includes a tie rod passed through two half frames, a preload hydraulic cylinder fixed on one of the half frames and a fixed The latch on the other half frame, one end of the pull rod is fixedly connected to the piston of the preload hydraulic cylinder, and the other end of the pull rod is detachably connected to the latch.

4. The rolling mill capable of vertical and horizontal rolling according to any one of claims 1-3, characterized in that: the lip frame is provided with an active roller gap adjustment cylinder for pushing the active roller.

5. The rolling mill capable of vertical and horizontal rolling according to claim 4, characterized in that: the roller frame is also detachably provided with two driven rollers whose axial direction is perpendicular to the axial direction of the driving roller.

6. The rolling mill capable of vertical and horizontal rolling according to claim 5, characterized in that: the die frame is also provided with a driven roller gap adjustment cylinder for pushing two driven rollers.