CN110842030A

CN110842030A - Modularized independent transmission rolling mill and unit thereof

Info

Publication number: CN110842030A
Application number: CN201911143956.6A
Authority: CN
Inventors: 陈莹卷
Original assignee: CISDI Technology Research Center Co Ltd
Current assignee: CISDI Technology Research Center Co Ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-02-28
Also published as: WO2021098337A1

Abstract

The invention discloses a modularized independent transmission rolling mill and a unit thereof, belonging to the field of metallurgical rolling equipment. The assembly includes one or more of the modular independent drive rolling mills described, wherein each stand of a single or multiple modular rolling mill is capable of adjusting the elongation coefficient between the two based on the speed change of the respective corresponding motor. The invention can solve the problem that the speed ratio between two frames in a single module rolling mill can not be flexibly adjusted, and solves the problems of complex equipment structure, high no-load power consumption and the like in the prior art.

Description

Modularized independent transmission rolling mill and unit thereof

Technical Field

The invention belongs to the technical field of metallurgical rolling equipment, and particularly relates to a modular independent transmission rolling mill and a unit thereof.

Background

In modern wire rod production, the currently commonly used equipment is a high-speed wire rod finishing mill, products meeting the size requirement are obtained through high-speed rolling of the wire rod finishing mill, and the yield of the wire rods is ensured. Aiming at small-size wire rod products, the rolling speed is even as high as about 110m/s for ensuring the wire rod output. In the early stage, the problem of dynamic speed reduction of steel biting in the high-speed rolling process of the wire rods cannot be solved, so that the currently adopted wire rod finishing mills are in centralized transmission, namely 8 to 10 wire rod finishing mills are simultaneously driven by one large motor to realize top crossing 45-degree twist-free rolling, and mechanically, a gear box and two long shafts are respectively used for driving a plurality of gear sets to drive the rolling mills and realize mechanical interlocking, so that the problem of dynamic speed reduction is solved, and stable production is realized. Although mechanical interlocking can be realized through centralized transmission, the problems of long transmission chain, complex structure, inconvenient cone box replacement, high no-load power consumption during the rolling of a throwing rack and the like still exist. In addition, for the disclosed modular rolling mill, the speed ratio relationship between two rolling mills in a single module is fixed, namely the extension coefficients of the two rolling mills are fixed during rolling, and cannot be flexibly adjusted, so that the size precision of the whole strip of a rolled piece can be influenced. In addition, a single fixed speed ratio rolling mill cannot meet rolling requirements for different elongation coefficients required for rolling of different wire rod products.

Disclosure of Invention

In view of the above disadvantages of the prior art, an object of the present invention is to provide a modular independent transmission rolling mill and a unit thereof, which are used to solve the problem that the speed ratio between two stands in a single rolling mill cannot be flexibly adjusted, and solve the problems of complicated equipment structure, high idle power consumption and the like in the prior art.

The invention is realized by the following technical scheme:

the invention provides a modularized independent transmission rolling mill which comprises a modular rolling mill, a gear box and motors, wherein the rolling mill comprises two mutually independent racks arranged in a box body, the gear box comprises two mutually independent gear trains, and the two racks on the modular rolling mill are respectively connected with the two mutually independent motors through the two gear trains on the gear box. By adopting the scheme, the two racks in the rolling mill can realize independent transmission, the extension coefficient between the racks can be changed by controlling the speed of the motor drive of each rack in the rolling process, the tension adjustment between the rolling mills is realized, and the rolling mill is suitable for the production of different products.

The two racks are connected with the two gear trains through the two mutually independent first couplers, and the two motors are connected with the two gear trains through the two mutually independent second couplers, so that the drive of the single motor is transmitted to the single gear train and the single rack in sequence.

Further, the output shaft of the motor and the input shaft of the gear train are vertically arranged or horizontally arranged in parallel, so that the arrangement mode is changed to adapt to different working condition requirements.

Furthermore, the two racks are in a 45-degree spatial orientation along the horizontal plane, form 90 degrees with each other and are aligned to the same rolling line to form a spatial arrangement with a top intersection of 45 degrees, so that the twistless rolling of the wire rod is realized.

Furthermore, the module rolling mill, the gear box and the motor are all located on the same side of the rolling line, and therefore the rolling mill can be replaced quickly conveniently.

Furthermore, two gear trains share one box shell, so that compact arrangement of the gear box is realized; or the two gear trains are respectively provided with independent box shells, thereby being convenient for reducing the cost and being simple and convenient to replace and maintain.

Furthermore, a single motor and a gear box containing a single gear train are integrated into a whole, so that the whole replacement and maintenance are facilitated, and the installation is convenient and fast.

The present invention also provides a modular independent drive rolling mill train comprising one or more of the modular independent drive rolling mills described above, wherein each stand of a single or multiple modular rolling mills is capable of adjusting the elongation coefficient therebetween based on the speed change of the respective corresponding motor. By adopting the scheme, the rolling mill set is more flexible in rolling, can meet the requirements of different wire rod products on different extension coefficients in rolling, and is reasonable and compact in structural layout, simple and stable in transmission operation and free of mutual interference in operation among modules.

The invention has the advantages that:

1. the two stands of a single module rolling mill in the modularized independent transmission rolling mill are respectively driven by respective motors to form a modularized independent transmission unit, so that the flexible adjustment of the speed between the rolling mills is realized, and the flexibility of the rolling process is effectively improved. Meanwhile, two motors respectively drive two racks in the same module rolling mill to operate, the motors can adopt low-power motors and are matched with a medium-low voltage transmission device, so that the rolling mill is simple and compact in structure, stable in high-speed operation and simple in replacement and maintenance.

2. The modular independent transmission rolling mill unit can select the number of the modular rolling mills according to the production process, and because the two stands of each modular rolling mill are driven by the independent motors, the idle stand can be stopped, thereby eliminating idle power consumption.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings, in which:

FIG. 1 is a schematic view of a modular independent drive rolling mill and its assembly structure 1;

FIG. 2 is a schematic view of a modular independent drive rolling mill and its assembly structure 2;

FIG. 3 is a schematic structural view of an independent box body of a gear box of a modular independent transmission rolling mill;

FIG. 4 is a modular independent drive mill train arrangement;

reference numbers in the figures: the device comprises a modular rolling mill 1, a first coupler 2, a gear box 3, a second coupler 4 and a motor 5; wherein: the left independent transmission system structure comprises: the gear train comprises a rack 1-1, a first coupler 2-1, a gear train 3-1 (an input shaft 3-1a and an output shaft 3-1b), a second coupler 4-1 and a motor 5-1; the right independent transmission system structure comprises: the gear train comprises a rack 1-2, a first coupler 2-2, a gear train 3-2 (an input shaft 3-2a and an output shaft 3-2b), a second coupler 4-2 and a motor 5-2; a shared box shell 3-3, and divided box shells 3-3a and 3-3 b; and (4) a box body 1-3.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.

As shown in fig. 1-3, the present invention provides a modular independent transmission rolling mill, which comprises a modular rolling mill 1, a first coupling 2, a gear box 3, a second coupling 4 and a motor 5, wherein the modular rolling mill 1 comprises two independent frames 1-1, 1-2 installed in a box 1-3, the gear box 3 comprises two independent gear trains 3-1, 3-2, and the two frames 1-1 and 1-2 on the modular rolling mill 1 are respectively connected with two independent motors 5-1, 5-2 through the two gear trains 3-1 and 3-2 on the gear box 3; namely, the two racks 1-1 and 1-2 are connected with the two gear trains 3-1 and 3-2 through two mutually independent first couplings 2-1 and 2-2, and the two motors 5-1 and 5-2 are connected with the two gear trains 3-1 and 3-2 through two mutually independent second couplings 4-1 and 4-2. Like this, the independent drive train structure in left side of modularization independent drive rolling mill does: the device comprises a rack 1-1, a first coupler 2-1, an output shaft 3-1b of a gear train 3-1, an input shaft 3-1a of the gear train 3-1, a second coupler 4-1 and a motor 5-1 which are sequentially connected in a transmission manner; the structure of the right independent transmission system is as follows: the gear train comprises a rack 1-2, a first coupler 2-2, an output shaft 3-2b of a gear train 3-2, an input shaft 3-2a of the gear train 3-2, a second coupler 4-2 and a motor 5-2; by adopting the scheme, the two racks in the modular rolling mill can realize independent transmission, and the extension coefficient between the racks can be changed by controlling the speed of the motor drive of each rack in the rolling process, so that the tension adjustment between the rolling mills is realized, and the modular rolling mill is suitable for the production of different products.

Two racks 1-1 and 1-2 of the modular rolling mill in the embodiment are arranged in the same box body 1-3, the racks 1-1 and 1-2 are in a 45-degree spatial orientation along the horizontal plane, form 90 degrees with each other and are aligned to the same rolling line to form a spatial arrangement with a top intersection of 45 degrees, so that the twist-free rolling of wire rods is realized.

The gear box 3 in the embodiment comprises two gear trains 3-1 and 3-2 which are independent from each other, the gear trains 3-1 and 3-2 are respectively composed of an input shaft 3-1a and 3-2a and an output shaft 3-1b and 3-2b, gears on the input shafts 3-1a and 3-2a are respectively meshed with gears on the respective output shafts 3-1b and 3-2b to form primary gear transmission, and the power of a motor is transmitted to the stand 1-1 and the stand 1-2 of the modular rolling mill 1.

The gear train 3-1 and the gear train 3-2 in the gear box 3 in the embodiment share one box shell 3-3 to form a box body structure, so that the gear train 3-1 and the gear train 3-2 are compactly arranged. Of course, in different embodiments, the two gear trains 3-1 and 3-2 can be arranged in the independent box shells 3-3a and 3-3b respectively, so that the purpose of independent transmission can be achieved, the cost can be reduced, and the replacement and maintenance are simple and convenient.

The module rolling mill 1, the gear box 3 and the motor 5 in the embodiment are all located on the same side of a rolling line, and the rapid replacement of the rolling mill is convenient to achieve.

As shown in FIG. 4, the modular independent transmission rolling mill train of the present embodiment can be used alone according to the process requirements, or can be formed to be used in combination with a plurality of modular rolling mill trains such as 2, 3 or 4, wherein the stands 1-1 and 1-2 of a single or a plurality of modular rolling mills can adjust the extension coefficient between the two based on the speed change of the respective motors 5-1 and 5-2. Therefore, the rolling mill set is more flexible in rolling, can meet the requirements of different wire rod products on different extension coefficients in rolling, and is reasonable and compact in structural layout, simple and stable in transmission operation and free of mutual interference in operation among modules. Meanwhile, because the two racks of each module rolling mill are driven by the independent motors, the idle rack can be stopped, and idle power consumption is eliminated.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and it is apparent that those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A modular independent transmission rolling mill comprises a modular rolling mill (1), a gear box (3) and motors (5), wherein the modular rolling mill comprises two independent racks (1-1 and 1-2) arranged in a box body (1-3), and is characterized in that the gear box comprises two independent gear trains (3-1 and 3-2), and the two racks on the modular rolling mill are respectively connected with the two independent motors (5-1 and 5-2) through the two gear trains on the gear box.

2. Modular independently driven rolling mill according to claim 1, further comprising a first coupling (2) and a second coupling (4), characterized in that the two stands are connected to the two gear trains by two mutually independent first couplings (2-1, 2-2) and the two electric motors are connected to the two gear trains by two mutually independent second couplings (4-1, 4-2).

3. The modular independent drive rolling mill of claim 1, wherein the motor output shaft and gear train input shaft are arranged vertically or horizontally in parallel.

4. The modular independent drive rolling mill of claim 1, wherein the two stands are oriented at 45 ° in space along the horizontal plane, are 90 ° to each other and are aligned with the same mill pass line, forming a 45 ° top cross space arrangement.

5. The modular independent drive rolling mill of claim 1, wherein the modular rolling mill, gearbox and motor are all located on the same side of a mill pass line.

6. Modular independent drive rolling mill according to any of claims 1-5, characterized in that the two gear trains share one housing (3-3) or separate housings (3-3a, 3-3b) respectively.

7. The modular independent drive rolling mill of claim 6, wherein a single motor and a gearbox containing a single gear train are integrated into a unitary structure.

8. A modular independently driven rolling mill train comprising one or more modular independently driven rolling mills according to any one of claims 1 to 7, wherein each stand of a single or a plurality of modular rolling mills is capable of adjusting the elongation coefficient between the two based on the speed variation of the respective corresponding motor.