Integrated on-machine roll change device

Abstract

This invention relates to an integrated on-site roll changing device, belonging to the field of rolling mill equipment technology. It includes two roll changing trolleys, two sets of mill roll systems, fixed roll changing guide rails, a traversing platform, a roll system lifting device, and a roll system push-pull device. The roll system push-pull device moves the roll changing trolleys carrying the mill roll systems from the traversing platform to the mill stand, completing the loading and unloading of the roll systems. The unloaded roll systems can be directly replaced on the traversing platform. This invention, by installing a roll disassembly and assembly robot on the traversing platform and using it in conjunction with the roll system lifting device, enables the replacement of unloaded roll systems on the traversing platform. This solves the problem of transporting unloaded mill roll systems to the preparation workshop for roll replacement and disassembly due to plant layout issues. Furthermore, the separately designed roll system lifting device allows for efficient and convenient roll disassembly and assembly on the traversing platform, avoiding conflicts between roll disassembly and assembly hoisting work and normal production hoisting work.

Description

Technical Field

[0001] This invention belongs to the field of steel rolling equipment technology and relates to an integrated machine-side roll changing device. Background Technology

[0002] In the production line of a steel rolling mill, the rolling mill rolls need to be replaced frequently. This is due to the wear and tear of the rolls, as well as the need to replace them with rolls of different die types when rolling products of different specifications.

[0003] During a routine roll change at a rolling mill, the old rolls are transported to the preparation workshop using trolleys, cranes, or other transport vehicles for disassembly and replacement. Once the rolls are replaced, the new rolls are transported to the workshop where the rolling mill production line is located, preparing for the next roll change. Typically, the rolling mill production line and the preparation workshop are located in different sections within the same building.

[0004] During the aforementioned roll replacement process, the mill roll system needs to be transported back and forth between two spans in a plant. In this case, if the plant's process layout cannot provide convenient transportation conditions and layout space for the mill roll system, it will be impossible to conveniently and quickly replace the old and new rolls. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide an integrated machine-side roll replacement device, which integrates the roll replacement robot originally installed in the preparation workshop into the roll replacement traverse platform, and installs a fixed hoisting device above the roll replacement traverse platform, so as to realize the roll replacement work within the workshop of the rolling line where the rolling mill is located.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An integrated machine-side roll changing device includes a transverse platform, on which at least two roll storage stations and a roll disassembly and assembly mechanical manual station are arranged side by side;

[0008] The mill stand is connected to the transverse platform via a fixed roll changing track;

[0009] A roller system push-pull device and a roller system lifting device are arranged side by side on the side of the transverse platform away from the mill stand.

[0010] Optionally, the transverse platform includes a platform frame, a roll assembly / disassembly robot arranged on the transverse platform, the platform frame is equipped with a platform movement limit switch and is driven by a hydraulic drive device, the hydraulic drive device and the platform movement limit switch cooperate to perform transverse movement to realize workstation switching.

[0011] Optionally, the roll assembly / disassembly robot is provided with a bracket in the middle for lifting the roll, and trolleys on both sides for lifting the roll bearing seats. The bracket is provided with a base with a track on both sides, and the base is provided on the transverse platform. The track on the base is used for the movement of the trolley.

[0012] Optionally, the lifting device is a gantry lifting device, which is fixed above the transverse platform by two side columns and a middle crossbeam to realize the lifting of the roller system.

[0013] Optionally, all roller storage stations on the transverse platform can be moved to be parallel to the roller push-pull device; all three stations on the transverse platform can be moved to be parallel to the roller lifting device.

[0014] Optionally, the transverse platform is provided with three functional areas: a roller system push-pull entry and exit area, which cooperates with the roller system push-pull device; a roll disassembly and assembly area, which cooperates with the roll disassembly and assembly robot; and a roller system lifting area, which cooperates with the roller system lifting device.

[0015] 7. Optionally, it also includes at least two roll changing cars, which are used to carry the roll system and enable the roll system to move between the mill stand and the transverse platform.

[0016] The beneficial effects of this invention are as follows:

[0017] (1) The roll assembly and disassembly robot is integrated into the roll changing traverse platform. Through the traverse platform and the roll system lifting device, the roll assembly and disassembly work can be carried out right next to the mill in the production workshop after the mill roll system is replaced, without having to transport the old roll system to the preparation workshop. This saves the time, manpower, and equipment costs associated with transporting the mill roll system within the plant for roll replacement, and improves work efficiency. In the plant process layout, the roll assembly and disassembly work is integrated with the replacement of the old and new roll systems on the rolling line, which improves the utilization rate of the plant.

[0018] (2) The separately set up roll system lifting device greatly reduces the amount of overhead crane used in the span where the rolling line is located during the roll disassembly and assembly process, and avoids conflicts between the roll change preparation work and the rolling line production work on the use of overhead crane. In addition, when the lifting device is used to raise and lower the rolling mill roll system, the interface docking between the rolling mill roll system and the roll disassembly and assembly robot can be completed more accurately, reducing manual intervention.

[0019] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0020] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein:

[0021] Figure 1 This is a schematic diagram of the structure of the integrated machine-side roller replacement device, which is a preferred embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of a preferred embodiment of the transverse platform structure of the present invention.

[0023] Figure 3 This is a schematic diagram of the preferred embodiment of the roller system lifting device of the present invention.

[0024] Attached reference numerals: 1 Fixed roll changing track, 2 Transverse platform, 3 Roll system push-pull device, 4 Mill roll system, 5 Roll changing car, 6 Roll disassembly and assembly robot, 7 Roll system lifting device, 8 Mill stand, 9 Center line of roll disassembly and assembly area, 10 Center line of roll system push-pull area, 11 Center line of roll system lifting area, 12 Rolling line, 13 Center line of roll disassembly and assembly robot manual position, 14 Center line of roll system storage position (I), 15 Center line of roll system storage position (II). Detailed Implementation

[0025] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0026] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the invention. To better illustrate the embodiments of the invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0027] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0028] Please see Figures 1-3 This is an integrated machine-side roll changing device, comprising two roll changing trolleys 5, two sets of mill roll systems 4 (each roll system includes two rolls, four four-row bearing housings, two thrust bearing housings, and other components), fixed roll changing guide rails, a traverse platform 2 (including a roll disassembly and assembly robot 6), a roll system lifting device 7, and a roll system push-pull device 3 (including a roll system push-pull hydraulic cylinder and a roll system connecting trolley). The traverse platform 2 includes three workstations: two roll system storage workstations and one roll disassembly and assembly robot 6 workstation. The traverse platform 2 can carry two sets of mill roll systems 4 and one roll disassembly and assembly robot 6 to achieve traverse function. The traverse platform 2 has three fixed functional areas: a roll system push-pull area, a roll disassembly and assembly area, and a roll system lifting area.

[0029] The transverse platform 2 includes a platform frame, a roll assembly / disassembly robot 6, a platform transverse hydraulic drive device, and a platform movement limit proximity switch. The roll assembly / disassembly robot 6 is divided into two parts according to its installation position. One part consists of fixed bases at both ends of the robot, which are installed on the civil engineering foundation and cannot be moved. The other part is installed above the transverse platform 2 and can move with the transverse platform 2 as a whole.

[0030] The roll assembly / disassembly robot 6 installed on the transverse platform 2 has the following functional components: first, a bracket in the middle to support the roll; second, trolleys on both sides to support the roll bearing seats, which can lift the bearing seats and move them up and down and horizontally through a hydraulic drive device; third, bases with rails on both sides of the bracket, which are installed on the transverse platform 2, and the rails on the bases are used for the trolleys to move to support the bearing seats.

[0031] In the roller lifting area, a "gate" type lifting device is installed on the corresponding civil engineering foundation. The lifting device is fixed above the transverse platform 2 by the structure of two side columns and a middle crossbeam. The lifting device realizes the function of lifting and lowering the roller system and moving it along the crossbeam.

[0032] The lateral movement range of the transverse platform 2 meets the following requirements: both roller storage stations on the transverse platform 2 can be moved to the roller advance / exit area; all three stations on the transverse platform 2 can be moved to the roller lifting area; and the roller assembly / disassembly robot 6 station can be moved to the roller assembly / disassembly area. For example... Figure 1 As shown, the roll changing device consists of a fixed roll changing track 1, a transverse platform 2, a roll system push-pull device 3, a mill roll system 4, a roll changing undercarriage 5, a roll disassembly and assembly robot 6, and a roll system lifting device 7. Figure 1 The roll changing device shown has three working areas, namely the center line 9 of the roll disassembly and assembly area, the center line 10 of the roll system pushing and pulling area, and the center line 11 of the roll system lifting area. Figure 2 The schematic diagram of the transverse platform shows that the transverse platform has three stations, which are shown as center line 13 of the manual station for roll assembly and disassembly, center line 14 of the roll storage station (I), and center line 15 of the roll storage station (II).

[0033] There are two roll change cars 5. Each roll change car carries two sets of rolling mill roll systems. One set of roll systems works inside the rolling mill, while the other complete set of roll systems is placed in the roll system storage station (II) to wait for the rolling mill roll system to be replaced. At this time, the roll system storage station (I) is empty.

[0034] When the rolling mill needs to change the roll system, move the transverse platform 1 and align the center line 14 of the roll system storage station (a) with the center line 10 of the roll system push-out area.

[0035] Furthermore, the roll system push-pull device 3 pulls the roll system 4 and the roll changing car 5 that need to be replaced out of the mill stand and onto the roll system storage station (a) for storage.

[0036] Further, move the transverse platform 1 to align the center line 15 of the roller system storage station (II) with the center line 10 of the roller system push-out area.

[0037] Furthermore, the roll system push-pull device 3 pushes another set of mill roll system 4 and roll changing car 5, which were prepared in advance at the roll system storage station (II), into the mill stand to start production on the line. At this time, a set of mill roll system 5 that needs to be replaced is stored at the roll system storage station (I), and the roll system storage station (II) is empty.

[0038] Further, move the transverse platform 1 to align the center line 14 of the roller system storage station (a) with the center line 11 of the roller system lifting area.

[0039] Furthermore, the upper roll assembly of the mill roll system 5 stored at the roll system storage station (a) is lifted up by the roll system lifting device 7.

[0040] Further, move the transverse platform 1 to align the center line 15 of the roller system storage station (II) with the center line 11 of the roller system lifting area.

[0041] Furthermore, the upper roller, which is lifted by the roller system lifting device 7, is assembled and stored on the roller system storage station (II).

[0042] Further, move the transverse platform 1 to align the center line 14 of the roller system storage station (a) with the center line 11 of the roller system lifting area.

[0043] Furthermore, the roll system lifting device 7 lifts up the lower roll assembly of the mill roll system 5 stored at the roll system storage station (a).

[0044] Furthermore, the lateral moving platform 1 is moved to align the center line 13 of the manual position of the roll assembly and disassembly machine with the center line 11 of the roll system lifting area.

[0045] Furthermore, the lower roll, which is lifted by the roll system lifting device 7, is placed onto the roll assembly / disassembly robot 6.

[0046] Furthermore, the lateral moving platform 1 is moved to align the center line 13 of the manual position of the roll assembly / disassembly machine with the center line 9 of the roll assembly / disassembly area, thus completing the assembly / disassembly of the lower roll and the replacement of the lower roll.

[0047] Furthermore, the lateral moving platform 1 is moved to align the center line 13 of the manual position of the roll assembly and disassembly machine with the center line 11 of the roll system lifting area.

[0048] Furthermore, the roll system lifting device 7 lifts up the lower roll assembly that has been manually replaced by the roll disassembly and assembly machine.

[0049] Further, move the transverse platform 1 to align the center line 14 of the roller system storage station (a) with the center line 11 of the roller system lifting area.

[0050] Furthermore, the lower roller assembly, which is lifted by the roller system lifting device 7, is placed on the roller system storage station (1).

[0051] Further, move the transverse platform 1 to align the center line 15 of the roller system storage station (II) with the center line 11 of the roller system lifting area.

[0052] Furthermore, the upper roller assembly stored at the roller storage station (II) is lifted up by the roller system lifting device 7.

[0053] Furthermore, the lateral moving platform 1 is moved to align the center line 13 of the manual position of the roll assembly and disassembly machine with the center line 11 of the roll system lifting area.

[0054] Furthermore, the upper roll, which is lifted by the roll system lifting device 7, is placed onto the roll assembly / disassembly robot 6.

[0055] Furthermore, the horizontal moving platform 1 is moved to align the center line 13 of the manual position of the roll assembly / disassembly machine with the center line 9 of the roll assembly / disassembly area, thus completing the assembly / disassembly of the upper roll and the replacement of the upper roll.

[0056] Furthermore, the lateral moving platform 1 is moved to align the center line 13 of the manual position of the roll assembly and disassembly machine with the center line 11 of the roll system lifting area.

[0057] Furthermore, the roller system lifting device 7 lifts up the upper roller assembly that has completed the roller replacement in the mechanical manual position of the roller disassembly and assembly machine.

[0058] Further, move the transverse platform 1 to align the center line 14 of the roller system storage station (a) with the center line 11 of the roller system lifting area.

[0059] Furthermore, the upper roller assembly, which is lifted by the roller system lifting device 7, is placed on the lower roller assembly at the roller system storage station (1).

[0060] In summary, the roll system replacement within the mill stand has been completed, and the disassembly, assembly, and replacement of the removed mill rolls within the mill stand have been finished. At this point, roll storage station (1) contains the mill rolls awaiting their next use, while roll storage station (2) is empty.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An integrated machine-side roller replacement device, characterized in that: It includes a transverse platform (2), on which at least two roller storage stations and a roller disassembly and assembly robot (6) station are arranged in parallel; The mill stand (8) is connected to the transverse platform (2) via a fixed roll changing track (1); A roller system push-pull device (3) and a roller system lifting device (7) are arranged side by side on the side of the transverse platform (2) away from the mill stand (8). All the roller storage positions on the transverse platform (2) can be moved to be parallel to the roller push-pull device (3); all three positions on the transverse platform (2) can be moved to be parallel to the roller lifting device (7); The transverse platform (2) is provided with three functional areas, including a roller system push-pull entry and exit area, which cooperates with the roller system push-pull device (3); and a roll disassembly and assembly area, which cooperates with the roll disassembly and assembly robot (6). Includes a roller system lifting area, which cooperates with the roller system lifting device (7); The roll assembly and disassembly robot (6) is divided into two parts according to the installation position. One part is the fixed base at both ends of the robot installed on the civil engineering foundation, and the other part is installed above the transverse platform (2).

2. The integrated machine-side roller replacement device according to claim 1, characterized in that: The transverse platform (2) includes a platform frame and a roll assembly / disassembly robot (6) arranged on the transverse platform (2). The platform frame is equipped with a platform movement limit switch and is driven by a hydraulic drive device. The hydraulic drive device cooperates with the platform movement limit switch to perform transverse movement and realize workstation switching.

3. The integrated machine-side roller replacement device according to claim 2, characterized in that: The roller assembly / disassembly robot (6) has a bracket in the middle for lifting the roller, and trolleys on both sides for lifting the roller bearing seats. The bracket has a base with a track on both sides, and the base is set on the transverse platform (2). The track on the base is used for the movement of the trolley.

4. The integrated machine-side roller replacement device according to claim 1, characterized in that: The lifting device is a gantry lifting device, which is fixed above the transverse platform (2) by means of two side columns and a middle crossbeam, so as to realize the lifting of the roller system.

5. The integrated machine-side roller replacement device according to claim 1, characterized in that: It also includes at least two roll changing cars (5), which are used to carry the roll system and realize the movement of the roll system on the mill stand (8) and the transverse platform (2).

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