Roll changing track mechanism and track roll changing device

Abstract

The invention provides a roll changing track mechanism and a track roll changing device, and relates to the technical field of roll changing equipment, the roll changing track mechanism comprises a supporting roll changing track and a working roll changing track, the supporting roll changing track is used for arranging a roll changing vehicle, the working roll changing track is used for arranging a roll changing transition vehicle, and the roll changing transition vehicle is arranged in the direction away from a rolling mill. The working roll changing track comprises a first fixed track section, a second fixed track section and an overturning track section which are arranged in sequence, the first fixed track section and the second fixed track section are arranged in a spaced mode to form a transverse moving station, and the transverse moving station is used for installing a transverse moving roll changing device; and the turnover track section comprises a working roll changing position connected with the second fixed track section and a supporting roll changing position in a turnover state. According to the roll changing trolley, the supporting roll changing track is matched with the working roll changing track, so that the operation of pushing in a new roll and pulling out an old roll can be realized through one roll changing trolley, the complexity of equipment is reduced, and the manufacturing and maintenance cost is further reduced.

Description

Technical Field

[0001] The invention relates to the technical field of roller changing equipment, and in particular to a roller changing track mechanism and a track roller changing device. Background Art

[0002] The working rolls and backup rolls of the rolling mill need to withstand huge alternating load pressure during the rolling process. Under the influence of alternating load pressure, cracks are easily generated on the roll surfaces of the working rolls and backup rolls. When the rolling mill is hot-rolled, the roll surface will also be affected by thermal stress, making it more likely to crack. If the working rolls and backup rolls are not replaced in time after crack defects occur on the working rolls and backup rolls, the cracks on the roll body will further expand, thereby affecting the quality of the rolled product and even causing the roll surface to detach and the roll to break.

[0003] Since the working rolls and the backup rolls are set at different positions, in order to improve the efficiency of roll changing, two sets of independent roll changing devices are usually used in the prior art to change the working rolls and the backup rolls respectively. However, in the actual production process, depending on the type, quality and output of the rolled products, the working rolls of large hot rolling mills sometimes need to be replaced once a day, and sometimes once every three days. The backup rolls are replaced about once a month or once a month and a half. Due to the difference in the replacement frequency between the working rolls and the backup rolls, the roll changing equipment used to replace the backup rolls is used less frequently, causing the roll changing equipment to be idle for a long time, wasting a lot of equipment investment.

[0004] Since two sets of roll changing equipment are set up, the subsequent maintenance workload and maintenance cost are also increased. Moreover, the roll changing equipment in the prior art generally adopts hydraulic drive. Since the support roll needs to be completely dragged from the frame of the rolling mill to the outside of the frame when replacing the support roll, the stroke of the hydraulic cylinder is large, the manufacturing difficulty is high, and the cost is expensive. In addition, the movement speed of the hydraulic drive is slow. Compared with the electric drive, the maintenance environment is poor and leakage and other problems are prone to occur. The existing roll changing equipment is mainly suitable for changing rolls near the rolling mill. It is necessary to design a large-tonnage overhead crane to lift the rolls, which increases the investment cost. In addition, the transportation of the rolls to the grinding roll room requires an additional cross-over flat car, which increases the lifting operation. Therefore, how to improve the roll changing efficiency of the roll changing equipment has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] In order to overcome the above-mentioned defects in the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a track roller changing device for solving at least one of the above-mentioned technical problems.

[0006] The above-mentioned object of the present invention can be achieved by adopting the following technical solutions. The present invention provides a roller track changing mechanism, comprising:

[0007] A support roller changing track connected to the support roller track in the rolling mill, wherein the support roller changing track is used to set a roll changing vehicle;

[0008] A working roll changing track connected to the working roll track in the rolling mill, the working roll changing track is arranged at intervals above the supporting roll changing track, the working roll changing track is used to set a roll changing transition car, along the direction away from the rolling mill, the working roll changing track includes a first fixed track segment, a second fixed track segment and a flipping track segment arranged in sequence, the first fixed track segment and the second fixed track segment are arranged at intervals to form a transverse shifting station, the transverse shifting station is used to install a transverse shifting roll changing device, the flipping track segment includes a working roll changing position connected to the second fixed track segment, and a supporting roll changing position in a flipping state.

[0009] In a preferred embodiment of the present invention, the support roller changing track includes two support roller changing guide rails arranged in parallel, and the support roller changing guide rails are used to connect with the support roller track in the rolling mill.

[0010] In a preferred embodiment of the present invention, one of the support roller changing guide rails is a flat rail, and the other support roller changing guide rail is a V-shaped rail.

[0011] In a preferred embodiment of the present invention, a rack is provided on the support roller changing guide rail, and the rack is used to be drivably connected to the transmission gear of the roller changing vehicle.

[0012] In a preferred embodiment of the present invention, the first fixed track section includes two first fixed guide rails arranged side by side, the second fixed track section includes two second fixed guide rails arranged side by side, the first fixed guide rail and the corresponding second fixed guide rail are spaced apart, the transverse shift station is formed between the first fixed guide rail and the second fixed guide rail, and the transverse shift roll changing device can controllably connect the first fixed guide rail and the second fixed guide rail for the travel of the roll changing transition vehicle.

[0013] In a preferred embodiment of the present invention, the flip track segment includes two flip guide rails arranged side by side, and the flip guide rails can be swingably arranged around the extension direction of the flip track segment for switching the working roll changing position and the supporting roll changing position.

[0014] In a preferred embodiment of the present invention, the roll-changing track mechanism further includes a flipping mechanism, and the flipping mechanism is used to drive the flipping guide rail to switch between the working roll changing position and the supporting roll changing position.

[0015] In a preferred embodiment of the present invention, the flipping mechanism includes a crank structure and a flipping drive device, one end of the crank structure is connected to the flipping guide rail, and the other end of the crank structure is connected to the flipping drive device.

[0016] In a preferred embodiment of the present invention, the roll changing track mechanism also includes a movable cover plate, which is arranged above the working roll changing track, one end of the movable cover plate is fixedly arranged, and the other end of the movable cover plate is used to connect the roll changing vehicle, and driven by the roll changing vehicle, the movable cover plate can telescopically cover the working roll changing track.

[0017] The present invention also discloses a track roll changing device, comprising the aforementioned roll changing track mechanism, a roll changing vehicle, and a roll changing transition vehicle, wherein the roll changing vehicle can be movably disposed on the supporting roll changing track of the roll changing track mechanism, and the roll changing transition vehicle can be movably disposed on the working roll changing track of the roll changing track mechanism.

[0018] The technical solution of the present invention has the following significant beneficial effects:

[0019] When the roll changing track mechanism of the present invention is in use, the supporting roll changing track and the working roll changing track are arranged at intervals in the same direction, the supporting roll changing track can be connected with the supporting roll track in the rolling mill, and the working roll changing track can be connected with the working roll track in the rolling mill, so that the supporting rolls and the working rolls can be transported respectively by the supporting roll changing track and the working roll changing track, and the stacked supporting roll changing track and the working roll changing track can avoid mutual influence and reduce the space occupied by the roll changing tracks.

[0020] In addition, a roll-changing car can be arranged on the support roll changing track, and a roll-changing transition car can be arranged on the working roll changing track. The roll-changing car can move along the support roll changing track and drive the roll-changing transition car to move on the working roll changing track, so that the new roll can be pushed in and the old roll can be pulled out by the same roll-changing car, which significantly improves the utilization rate of the roll-changing car. In addition, the roll-changing car can be driven by a motor, so that the roll-changing car has a larger stroke. By extending the support roll changing track and the working roll changing track between the main rolling span and the grinding roll room, the roll-changing car can directly tow the support roll or the working roll from the main rolling span to the grinding roll room without the need for reverse transportation via a cross-span flat car, which significantly improves the roll-changing efficiency.

[0021] The support roll changing track and the working roll changing track in the present invention can realize the operation of pushing in new rolls and pulling out old rolls through a roll changing vehicle, thereby reducing the complexity of the equipment and further reducing the manufacturing and maintenance costs. In addition, the present invention switches the flip track section to the support roll changing position, so that the flip track section can reserve a support roll changing space above the support roll changing track, so that the flip track section will not interfere with the support roll changing operation, thereby facilitating the lifting of the support roll at the flip track section, thereby improving the roll changing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] The accompanying drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the figures are only schematic, used to help understand the present invention, and are not specifically limited to the shapes and proportional dimensions of the various components of the present invention. Those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to the teachings of the present invention.

[0024] Figure 1 A side structural schematic diagram of an embodiment of the roller-changing track mechanism of the present invention;

[0025] Figure 2 A schematic diagram of a top view of an embodiment of the roller-changing track mechanism of the present invention;

[0026] Figure 3 A schematic diagram of the front view structure of an embodiment of the flip track segment of the present invention;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of an embodiment of the roll changing vehicle of the present invention;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of an embodiment of the support roller changing track of the present invention;

[0029] Figure 6 A side structural schematic diagram of an embodiment of the roll changing vehicle of the present invention;

[0030] Figure 7 This is a schematic diagram of the main structure of an embodiment of the roll changing vehicle of the present invention;

[0031] Figure 8This is a schematic diagram of the installation structure of an embodiment of the roll changing vehicle of the present invention;

[0032] Fig. 9 The figure is a side structural schematic diagram of an embodiment of the roller-changing transition vehicle of the present invention.

[0033] Reference numerals of the above drawings:

[0034] 10. Roller changing car;

[0035] 20. Support roller changing track; 21. Flat track; 22. V-shaped track; 23. Rack; 24. Cable receiving groove;

[0036] 30. Move the cover;

[0037] 40. Roller-changing transition vehicle; 41. First connecting hook; 42. Second connecting hook;

[0038] 50. Working roll changing track; 51. First fixed track segment; 52. Second fixed track segment; 53. Turning track segment;

[0039] 60. Transverse roller changing device;

[0040] 70. Rolling mill;

[0041] 100, vehicle body; 110, vehicle platform; 111, cover plate connection structure; 120, step ladder;

[0042] 200, support wheel set; 210, first support wheel; 220, second support wheel;

[0043] 300, power mechanism; 310, power device; 320, transmission gear;

[0044] 400, hook assembly; 410, first hanging structure; 420, second hanging structure;

[0045] 500, anti-tipping mechanism; 510, anti-tipping wheel;

[0046] 600, cable retracting and releasing mechanism;

[0047] 700, crank structure;

[0048] 800. Flip drive device. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] Implementation Method 1

[0051] Please join us Figures 1 to 9 As shown, an embodiment of the present invention provides a roll changing track mechanism, which includes a supporting roll changing track 20 connected to the supporting roll track in the rolling mill, and a working roll changing track 50 connected to the working roll track in the rolling mill, the supporting roll changing track 20 is used to set the roll changing car 10; the working roll changing track 50 is arranged above the supporting roll changing track 20 at intervals, and the working roll changing track 50 is used to set the roll changing transition car 40, along the direction away from the rolling mill 70, the working roll changing track 50 includes a first fixed track segment 51, a second fixed track segment 52 and a flipping track segment 53 arranged in sequence, the first fixed track segment 51 and the second fixed track segment 52 are arranged at intervals to form a transverse shifting station, the transverse shifting station is used to install the transverse shifting roll changing device 60, and the flipping track segment 53 includes a working roll changing position connected to the second fixed track segment 52, and a supporting roll changing position in a flipping state.

[0052] On the whole, when the roller track mechanism is used, Figure 1 and Figure 2 In the embodiment shown, the support roll changing track 20 and the working roll changing track 50 are arranged at intervals in the same direction, the support roll changing track 20 can be connected with the support roll track in the rolling mill, and the working roll changing track 50 can be connected with the working roll track in the rolling mill, so that the support rolls and the working rolls can be transported respectively by the support roll changing track 20 and the working roll changing track 50, and the stacked support roll changing track 20 and the working roll changing track 50 can avoid mutual influence and reduce the space occupied by the roll changing tracks.

[0053] And, if Figure 1 and Figure 2 In the embodiment shown, a roll changing car 10 can be set on the supporting roll changing track 20, and a roll changing transition car 40 can be set on the working roll changing track 50. The roll changing car 10 can move along the supporting roll changing track 20 and drive the roll changing transition car 40 to move on the working roll changing track 50, so that the new roll can be pushed in and the old roll can be pulled out by the same roll changing car 10, which significantly improves the utilization rate of the roll changing car 10.

[0054] In addition, the roll changing car 10 can be driven by an electric motor, so that the roll changing car 10 has a larger stroke. By extending the support roll changing track 20 and the working roll changing track 50 between the main rolling span and the grinding roll room, the roll changing car 10 can directly drag the support rolls or working rolls from the main rolling span to the grinding roll room without the need for reverse transportation across the flat car, thereby significantly improving the roll changing efficiency.

[0055] The support roll changing track 20 and the working roll changing track 50 in the present invention can realize the operation of pushing in new rolls and pulling out old rolls through a roll changing vehicle 10, thereby reducing the complexity of the equipment and further reducing the manufacturing and maintenance costs. In addition, the present invention switches the flip track section 53 to the support roll changing position, so that the flip track section 53 can reserve a support roll changing space above the support roll changing track 20, so that the flip track section 53 will not interfere with the support roll changing operation, thereby facilitating the lifting of the support roll at the flip track section 53, thereby improving the roll changing efficiency.

[0056] In an embodiment of the present invention, the working roll changing track 50 can be arranged along the center line direction of the entrance and exit of the rolling mill 70, so as to facilitate the transportation of the working rolls in and out of the rolling mill 70. The backup roll changing track 20 can be arranged parallel to the lower side of the working roll changing track 50 for transporting the backup rolls in and out of the rolling mill 70.

[0057] The working roll may include a working roll body and an assembly part arranged on the working roll body, and the supporting roll may include a supporting roll body and an assembly part arranged on the supporting roll body.

[0058] In an embodiment of the present invention, Figure 5 In the illustrated embodiment, the support roll changing track 20 includes two support roll changing guide rails arranged in parallel, and the support roll changing guide rails are used to connect with the support roll track in the rolling mill.

[0059] Two parallel supporting roller changing guide rails can provide better support and guidance to ensure the smooth movement of the supporting rollers during the roller changing process. The double guide rail design can also disperse the weight of the supporting rollers, improve the bearing capacity of the track, and thus extend the service life of the track.

[0060] In an embodiment of the present invention, Figure 5 and Figure 7 In the illustrated embodiment, one of the support roller changing guide rails is a flat rail 21 , and the other support roller changing guide rail is a V-shaped rail 22 .

[0061] Correspondingly, the roll-changing vehicle 10 includes a supporting wheel set 200 , which includes a plurality of first supporting wheels 210 disposed on the flat rail 21 , and a plurality of second supporting wheels 220 disposed on the V-shaped rail 22 , wherein the second supporting wheels 220 are matched and connected to the V-shaped rail 22 .

[0062] By matching the second support wheel 220 with the V-shaped rail 22, the V-shaped rail 22 provides a limiting and guiding function, ensuring that the roll-changing vehicle 10 runs smoothly along the V-shaped rail 22 during movement, reducing deviation and shaking, and improving stability and reliability.

[0063] Furthermore, the combined design of the flat rail 21 and the V-shaped rail 22 makes the weight distribution of the roll-changing vehicle 10 more uniform, reduces the burden of a single guide rail, and prolongs the service life of the guide rail and the supporting wheel.

[0064] Of course, in other feasible embodiments, designers can adjust the shape and structure of the support roller changing guide rail according to usage requirements, and no specific restrictions are made here.

[0065] In an embodiment of the present invention, Figure 5 In the illustrated embodiment, a rack 23 is provided on the support roller changing guide rail, and the rack 23 is used to be drivably connected to the transmission gear 320 of the roller changing vehicle 10.

[0066] Correspondingly, the roll-changing vehicle 10 includes a vehicle body 100 and a power mechanism 300 disposed on the vehicle body 100 . The power mechanism 300 includes a power device 310 and a transmission structure disposed on the power device 310 . The transmission structure is transmissionably connected to the rack 23 on the supporting roll-changing track 20 .

[0067] Specifically, racks 23 are provided on the two supporting roller changing guide rails, and the two racks 23 are arranged opposite to each other; the power device 310 includes a motor arranged on the vehicle body 100, and the transmission structure includes a transmission gear 320 arranged on the rotating shaft of the motor, and the transmission gear 320 is transmission-engaged with any rack 23.

[0068] Among them, the vehicle body 100 is set on two supporting roller changing guide rails through the supporting wheel group 200, and the transmission gear 320 is placed between the two supporting roller changing guide rails and is transmissionably meshed with one of the supporting roller changing guide rails, so that when the motor drives the transmission gear 320 to rotate, the vehicle body 100 can move along the supporting roller changing guide rail.

[0069] In an embodiment of the present invention, the first fixed rail segment 51 includes two first fixed guide rails arranged side by side, and the second fixed rail segment 52 includes two second fixed guide rails arranged side by side. The first fixed guide rails and the corresponding second fixed guide rails are arranged at intervals, and a transverse shift station is formed between the first fixed guide rails and the second fixed guide rails. The transverse shift roll changing device 60 can controllably connect the first fixed guide rail and the second fixed guide rail for the roll changing transition vehicle 40 to travel.

[0070] like Figure 1 and Figure 2In the embodiment shown, the new and old roll bodies can be temporarily stored and transported by the transverse shift roll changing device 60, and the roll changing operation of pushing in the new roll and pulling out the old roll can be completed by cooperating with the roll changing vehicle 10 and the roll changing transition vehicle 40 to perform reciprocating motion along the roll changing track mechanism, thereby significantly improving the roll changing efficiency of the rolling mill 70.

[0071] The designer can adjust the specific structure of the transverse roller changing device 60 according to the use requirements, and no specific limitation is made here. Preferably, the transverse roller changing device 60 includes a transverse track mechanism and a transverse roller device, and the transverse roller device can be movably arranged on the transverse track mechanism.

[0072] More preferably, the transverse track mechanism includes a first transverse track and a second transverse track arranged at intervals, a rotating transverse track arranged between the first transverse track and the second transverse track, and a track support structure, wherein the rotating transverse track controllably connects the first transverse track and the second transverse track; the track support structure is arranged between the first transverse track and the second transverse track, and when the rotating transverse track is in a state of connecting the first transverse track and the second transverse track, the track support structure can support the rotating transverse track.

[0073] In an embodiment of the present invention, Figure 3 In the illustrated embodiment, the turning track segment 53 includes two turning guide rails arranged side by side, and the turning guide rails can be swingably arranged around the extension direction of the turning track segment 53 for switching the working roll changing position and the support roll changing position.

[0074] By arranging the turning guide rail to be swingable around the extending direction of the turning track section 53 , a space for the support roller to enter and exit the support roller changing track 20 can be formed quickly and conveniently.

[0075] When replacing the supporting roller, the two flip guide rails are moved away from each other by controlling the swing angle of the flip guide rail, thereby switching the flip track segment 53 to the supporting roller changing position. At this time, the flip track segment 53 can reserve a supporting roller changing space above the supporting roller changing track 20 to facilitate the supporting roller to enter and exit the supporting roller changing track 20, so that the flip track segment 53 will not interfere with the supporting roller changing operation, thereby facilitating the lifting of the supporting roller at the flip track segment 53, with better convenience in changing rollers.

[0076] In an embodiment of the present invention, Figure 3 In the illustrated embodiment, the roll-changing track mechanism further comprises a flipping mechanism, which is used to drive the flipping guide rail to switch between a working roll changing position and a support roll changing position.

[0077] By setting a turnover mechanism to drive the turnover guide rail to switch between the working roll changing position and the supporting roll changing position, it can be used for two different types of roll changing operations, thereby improving the versatility and flexibility of the equipment.

[0078] Specifically, the turning mechanism includes a crank structure 700 and a turning drive device 800 , one end of the crank structure 700 is connected to the turning guide rail, and the other end of the crank structure 700 is connected to the turning drive device 800 .

[0079] Furthermore, the flip driving device 800 may be a telescopic device, such as a hydraulic cylinder or a gas cylinder, which is not limited here. Specifically, the telescopic rod of the telescopic device is connected to one end of the crank structure 700, and the crank structure 700 is pushed by the telescopic rod to drive the flip guide rail to flip. The telescopic device can quickly and efficiently drive the flip guide rail to realize flipping or falling back operation.

[0080] Of course, the designer can also use a crane to drive the flip rail to flip, which is not limited here. Alternatively, the flip drive device 800 can also be a coaxial drive structure, that is, a rotary drive is set at the hinge point of the flip rail, and a motor or hydraulic motor is used to drive the flip rail to rotate, thereby realizing the flip or fall operation.

[0081] Designers can adjust the specific structure of the flip driving device 800 according to usage requirements, and no specific restrictions are made here.

[0082] In an embodiment of the present invention, Figure 1 and Figure 2 In the embodiment shown, the roll changing track mechanism also includes a movable cover plate 30, which is arranged above the working roll changing track 50, one end of the movable cover plate 30 is fixedly arranged, and the other end of the movable cover plate 30 is used to connect to the roll changing vehicle 10. Driven by the roll changing vehicle 10, the movable cover plate 30 can telescopically cover the working roll changing track 50.

[0083] Correspondingly, the roll-changing vehicle 10 further includes a cover plate connection structure 111, which is used to connect the movable cover plate 30. By utilizing the cover plate connection structure 111 to connect with the movable cover plate 30, the movable cover plate 30 can move with the roll-changing vehicle 10 to cover the top of the supporting roller changing track 20, thereby achieving full coverage of the travel range area, which helps to improve the safety during operation and maintenance, and provides a more friendly operation interface. Designers can adjust the setting method of the movable cover plate 30 according to the needs of use, and no specific restrictions are made here.

[0084] Implementation Method 2

[0085] Please refer to Figure 1 and Figure 2As shown, the present invention further provides a track roll changing device, which includes a roll changing track mechanism, a roll changing vehicle 10, and a roll changing transition vehicle 40 as described in the first embodiment, wherein the roll changing vehicle 10 is movably arranged on the supporting roll changing track 20 of the roll changing track mechanism, and the roll changing transition vehicle 40 is movably arranged on the working roll changing track 50 of the roll changing track mechanism. The specific structure, working principle and beneficial effects of the roll changing track mechanism are the same as those described in the above embodiments, and will not be repeated here.

[0086] In an embodiment of the present invention, the roll changing vehicle 10 includes a vehicle body 100, a supporting wheel group 200, a power mechanism 300 and a hook assembly 400, wherein the supporting wheel group 200 is arranged at the bottom of the vehicle body 100, and the supporting wheel group 200 is movably arranged on the supporting roller changing track 20; the power mechanism 300 is arranged on the vehicle body 100, and the power mechanism 300 is used to drive the vehicle body 100 to move along the supporting roller changing track 20; the hook assembly 400 includes a first hanging structure 410 and a second hanging structure 420 arranged on the vehicle body 100, and the second hanging structure 420 is arranged above the first hanging structure 410, and the first hanging structure 410 is used to connect the supporting roller assembly, and the second hanging structure 420 is used to connect the working roller assembly.

[0087] When the roll changing vehicle 10 is used, Figure 7 and Figure 8 In the illustrated embodiment, the vehicle body 100 is disposed on the supporting roller changing track 20 via the supporting wheel set 200, and the vehicle body 100 is driven to move along the supporting roller changing track 20 via the power mechanism 300, thereby enabling the pushing in operation of the new roller and the pulling out operation of the old roller.

[0088] In addition, a hook assembly 400 is provided on the car body 100, and the second hanging structure 420 of the hook assembly 400 is arranged above the first hanging structure 410, so that the first hanging structure 410 and the second hanging structure 420 can be arranged at different heights according to the structure of the rolling mill 70. The double-layer design of the hook assembly 400 can adapt to supporting rolls and working rolls of different sizes and types, thereby enhancing the adaptability and flexibility of the roll changing car 10, so that it can be better suitable for various rolling mills 70.

[0089] By utilizing the first hanging structure 410 to connect the support roll assembly of the rolling mill 70, and utilizing the second hanging structure 420 to connect the working roll assembly of the rolling mill 70, the same roll changing car 10 can be used to push in new support rolls and pull out old support rolls, as well as to push in new working rolls and pull out old working rolls, thereby significantly improving the utilization rate of the roll changing car 10, thereby reducing the idle time of the equipment and reducing the equipment cost.

[0090] The present invention can complete the roll changing operation by using one roll changing vehicle 10, and is also helpful to reduce the subsequent repair and maintenance workload, thereby reducing the maintenance cost.

[0091] In an embodiment of the present invention, Figure 6 , Figure 7 and Figure 8 In the illustrated embodiment, the power mechanism 300 includes a power device 310 and a transmission structure disposed on the power device 310 , and the transmission structure is transmissionably connected to the support roller changing track 20 .

[0092] By connecting the transmission structure to the support roller changing track 20 in a transmission manner, the power device 310 can generate driving force on the support roller changing track 20 through the transmission structure, thereby driving the vehicle body 100 to move on the support roller changing track 20, thereby improving the movement efficiency of the vehicle body 100.

[0093] In an embodiment of the present invention, Figure 5 and Figure 7 In the illustrated embodiment, the supporting roller changing track 20 includes two supporting roller changing guide rails arranged in parallel, and racks 23 are provided on the two supporting roller changing guide rails, and the two racks 23 are arranged opposite to each other; the power device 310 includes a motor arranged on the vehicle body 100, and the transmission structure includes a transmission gear 320 arranged on the rotating shaft of the motor, and the transmission gear 320 is transmissionably meshed with any rack 23.

[0094] Specifically, the vehicle body 100 is set on two supporting roller changing guide rails through the supporting wheel group 200, and the transmission gear 320 is placed between the two supporting roller changing guide rails and is transmissionably meshed with one of the supporting roller changing guide rails, so that when the motor drives the transmission gear 320 to rotate, the vehicle body 100 can move along the supporting roller changing guide rail.

[0095] By meshing the transmission gear 320 with the rack 23, the gear transmission mode has better transmission accuracy, which helps to better control the movement position of the roll-changing vehicle 10. The motor directly meshes the transmission gear 320 with the rack 23 to achieve efficient power transmission, ensuring that the vehicle body 100 can move quickly and smoothly along the support roller roller-changing track 20, thereby improving the efficiency of the roller-changing operation.

[0096] In addition, the meshing design of the transmission gear 320 and the rack 23 also ensures the reliability of power transmission, and can maintain a stable transmission effect even under complex working conditions, reducing the failure rate. The motor and the transmission gear 320 cooperate to enable the roll changing vehicle 10 to move bidirectionally on the supporting roll changing track 20, flexibly responding to roll changing requirements in different directions, and improving the adaptability and operational flexibility of the equipment.

[0097] In the embodiment of the present invention, at least two motors are provided, each motor is provided with a transmission gear 320 , and each transmission gear is respectively meshed with the rack 23 in a transmission manner.

[0098] By arranging a plurality of motors and transmission gears 320 on the vehicle body 100, the plurality of motors can cooperate with each other to increase the driving force, thereby better meeting the driving needs.

[0099] Designers can adjust the specific number and arrangement of motors according to usage requirements, and no specific restrictions are imposed here. Figure 7 In the embodiment described above, when two motors are provided, the two motors are respectively connected to the two racks 23 via the transmission gear 320 .

[0100] The roll-changing vehicle 10 further includes a control module, which is electrically connected to the motor, so that the movement state of the motor can be controlled by the control module, so that the multiple motors can work together to drive the roll-changing vehicle 10 .

[0101] In an embodiment of the present invention, Figure 4 and Figure 6 In the illustrated embodiment, the first attachment structure 410 includes a backup roll hook, and the second attachment structure 420 includes a work roll hook.

[0102] Specifically, the support roller hook is arranged on the vehicle body 100, and the support roller hook is arranged above the support roller hook through a fixing structure, so that the support roller hook and the support roller hook are arranged at different heights.

[0103] By adopting a double-layer design for the support roller hook head and the support roller hook head, the support roller hook head and the support roller hook head can adapt to support rollers and working rolls of different sizes and types, thereby enhancing the adaptability and flexibility of the roll changing car 10, so that it can be better applied to various rolling mills 70.

[0104] In addition, the support roller hook and the working roller hook can be optimized for the support roller assembly and the working roller assembly respectively, ensuring firmness and reliability during the hooking process, reducing safety hazards caused by unstable hooking, and making the hooking operation simpler and faster, thereby improving the convenience and efficiency of operation.

[0105] The designer can adjust the specific shapes of the support roller hook and the working roller hook according to the use requirements, and no specific restrictions are made here. Preferably, the support roller hook is roughly constructed in a T shape, and the working roller hook is roughly constructed in a U shape.

[0106] In an embodiment of the present invention, Figure 4In the illustrated embodiment, the car body 100 further includes a car platform 110 , which is disposed on the car body 100 via a support frame. The car platform 110 is configured to be disposed at the same height as the working roll changing track 50 .

[0107] By arranging the vehicle platform 110 on the vehicle body 100 through the support frame, the vehicle platform 110 can provide an operating space for the operator, thereby ensuring the smooth progress of the roller changing operation. The designer can adjust the specific structure of the vehicle platform 110 according to the use requirements, and no specific limitation is made here.

[0108] In an embodiment of the present invention, Figure 4 In the illustrated embodiment, the roll changing vehicle 10 further comprises a cover plate connecting structure 111 disposed on the vehicle platform 110 . The cover plate connecting structure 111 and the second hanging structure 420 are disposed at two ends of the vehicle platform 110 opposite to each other. The cover plate connecting structure 111 is used to connect the movable cover plate 30 .

[0109] By setting a cover connecting structure 111 on the vehicle platform 110, the cover connecting structure 111 can be connected with the movable cover 30, so that the movable cover 30 can move with the roll changing vehicle 10 to cover the top of the supporting roller changing track 20, thereby achieving full coverage of the travel range area, helping to improve safety during operation and maintenance, and providing a more user-friendly operation interface.

[0110] Designers can adjust the arrangement of the movable cover plate 30 according to usage requirements. For example, the movable cover plate 30 is arranged on the working roll changing track 50 and connected to the cover plate connecting structure 111. No specific limitation is made here.

[0111] In an embodiment of the present invention, Figure 4 In the illustrated embodiment, the roll changing vehicle 10 further includes a step ladder 120 disposed on the vehicle body 100 .

[0112] Specifically, the step ladder is arranged on the vehicle body 100 to connect to the ground, or the step ladder can also be arranged between the vehicle body 100 and the vehicle platform 110, thereby providing a movement path for the operator and improving the convenience of use. The designer can adjust the specific structure of the step ladder 120 according to the use requirements, and no specific limitation is made here.

[0113] Due to the heavy weight of the roll group, when the roll changing vehicle 10 is connected to the roll group, the roll changing vehicle 10 will be stressed and tilt forward as a whole when pulling the roll group, causing part of the roll changing vehicle 10 to be separated from the supporting roll changing track 20, thereby creating a safety risk. In addition, the roll changing vehicle 10 is likely to collide with the supporting roll changing track 20 after returning, which is likely to cause damage to the equipment and the track.

[0114] In order to solve the above problems, in an embodiment of the present invention, the roll changing vehicle 10 further includes an anti-tilt mechanism 500 disposed on the vehicle body 100 , and the anti-tilt mechanism 500 is movably connected to the supporting roller changing track 20 .

[0115] The anti-tilt mechanism 500 can keep the vehicle body 100 on the supporting roller changing track 20 to prevent the vehicle body 100 from leaving the supporting roller changing track 20 , thereby ensuring the movement stability of the vehicle body 100 and reducing safety risks.

[0116] Specifically, Figure 4 and Figure 7 In the illustrated embodiment, the anti-tipping mechanism 500 includes a plurality of anti-tipping wheels 510 , which are disposed on the vehicle body 100 via a connecting structure, and are disposed on the other side of the supporting roller changing track 20 relative to the supporting wheel set 200 .

[0117] By arranging the anti-tipping wheels 510 and the supporting wheel group 200 on both sides of the supporting roller changing track 20 opposite to each other, the anti-tipping wheels 510 and the supporting wheel group 200 cooperate to play a clamping role, so that the vehicle body 100 can be kept on the supporting roller changing track 20, avoiding the roll changing vehicle 10 from tipping over during use, and improving the safety of the roll changing vehicle 10.

[0118] The designer can adjust the specific number and structure of the anti-tipping wheels 510 according to the use requirements, and no specific limitation is made here. For example, four anti-tipping wheels 510 are provided, and the four anti-tipping wheels 510 are distributed at the four corners of the vehicle body 100 and abut against the bottom surface of the supporting roller changing track 20, so that the four anti-tipping wheels 510 can play a multi-point limiting role.

[0119] Of course, in other feasible embodiments, designers can adjust the number and arrangement of the anti-tipping wheels 510 according to usage requirements, and no specific numerical limit is imposed herein.

[0120] In an embodiment of the present invention, Figure 5 and Figure 7 In the illustrated embodiment, the support roller changing track 20 includes two support roller changing guide rails arranged in parallel, one of which is a flat rail 21, and the other is a V-shaped rail 22; the support wheel group 200 includes a plurality of first support wheels 210 arranged on the flat rail 21, and a plurality of second support wheels 220 arranged on the V-shaped rail 22, and the second support wheels 220 are matched and connected with the V-shaped rail 22.

[0121] By matching the second support wheel 220 with the V-shaped rail 22, the V-shaped rail 22 provides a limiting and guiding function, ensuring that the roll-changing vehicle 10 runs smoothly along the V-shaped rail 22 during movement, reducing deviation and shaking, and improving operational stability and reliability.

[0122] Furthermore, the combined design of the flat rail 21 and the V-shaped rail 22 makes the weight distribution of the roll-changing vehicle 10 more uniform, reduces the burden of a single guide rail, and prolongs the service life of the guide rail and the supporting wheel.

[0123] Of course, in other feasible embodiments, designers can adjust the shape and structure of the support roller changing guide rail according to usage requirements, and no specific restrictions are made here.

[0124] In an embodiment of the present invention, Figure 6 In the illustrated embodiment, the roll-changing vehicle 10 further includes a cable retracting mechanism 600 disposed on the vehicle body 100 , and the cable retracting mechanism 600 is used to release or retract the cable connected to the power mechanism 300 .

[0125] By arranging the cable retracting and releasing mechanism 600 on the vehicle body 100, the cable can be retracted and released by using the cable retracting and releasing mechanism 600, thereby reducing the situation where the cables are scattered on the ground, avoiding the risk of the operator tripping or the equipment being damaged, and improving the safety of the operation.

[0126] Furthermore, the cable can be managed and controlled by the cable retracting mechanism 600, so as to avoid the cable from getting tangled or knotted when the cable moves with the vehicle body 100, thereby ensuring the normal use of the cable and reducing the probability of failure. The cable retracting mechanism 600 reduces the wear of the cable during the dragging process, prolongs the service life of the cable, and reduces the maintenance cost.

[0127] The designer can adjust the specific structure of the cable retracting mechanism 600 according to the use requirements, and no specific limitation is made here. Preferably, the cable retracting mechanism 600 includes a cable drum and a retracting driving device for driving the cable drum to rotate.

[0128] Further, such as Figure 5 In the illustrated embodiment, a cable receiving groove 24 for receiving cables may be provided between the two supporting roller changing guide rails, so that the cables can be placed in the cable receiving groove 24 during use, thereby preventing the cables from being scattered on the ground.

[0129] In the embodiment of the present invention, the designer can adjust the specific shape of the roller-changing transition vehicle 40 according to the use requirements, and no specific limitation is made here.

[0130] Preferably, a third hanging structure is provided on the roll-changing transition car 40. More preferably, the third hanging structure includes a first connecting hook 41 provided at one end of the roll-changing transition car 40, and a second connecting hook 42 provided at the other end of the roll-changing transition car 40, and the roll-changing transition car 40 is detachably connected to the second hanging structure 420 of the roll-changing car 10 through the connecting hook, and the second connecting hook 42 can be used to connect the second hanging structure 420 of the working roll.

[0131] Designers can adjust the specific shapes and structures of the first connecting hook 41 and the second connecting hook 42 according to usage requirements, and no specific limitation is made here.

[0132] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for various purposes. The term "consisting essentially of ... " describing a combination should include determined elements, ingredients, parts or steps and other elements, ingredients, parts or steps that do not substantially affect the basic novel features of the combination. The use of the terms "comprising" or "including" to describe the combination of elements, ingredients, parts or steps here also contemplates the implementation method consisting essentially of these elements, ingredients, parts or steps. Here, by using the term "may", it is intended to illustrate that any attribute described that "may" includes is optional. Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step can be divided into separate multiple elements, ingredients, parts or steps. The disclosure "one" or "one" used to describe an element, ingredient, part or step is not said to exclude other elements, ingredients, parts or steps.

[0133] Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the embodiments can be referred to each other. The above embodiments are only for illustrating the technical concept and features of the present invention. The purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A roller track changing mechanism, characterized in that: include: A support roller changing track connected to the support roller track in the rolling mill, wherein the support roller changing track is used to set a roll changing vehicle; A working roll changing track connected to the working roll track in the rolling mill, the working roll changing track is arranged at intervals above the supporting roll changing track, the working roll changing track is used to set a roll changing transition car, along the direction away from the rolling mill, the working roll changing track includes a first fixed track segment, a second fixed track segment and a flipping track segment arranged in sequence, the first fixed track segment and the second fixed track segment are arranged at intervals to form a transverse shifting station, the transverse shifting station is used to install a transverse shifting roll changing device, the flipping track segment includes a working roll changing position connected to the second fixed track segment, and a supporting roll changing position in a flipping state.

2. The roller track changing mechanism according to claim 1, characterized in that: The support roller changing track comprises two support roller changing guide rails arranged in parallel, and the support roller changing guide rails are used to connect with the support roller track in the rolling mill.

3. The roller track changing mechanism according to claim 2, characterized in that: One of the support roller changing guide rails is a flat rail, and the other support roller changing guide rail is a V-shaped rail.

4. The roller track changing mechanism according to claim 2, characterized in that: A rack is provided on the supporting roller changing guide rail, and the rack is used to be drivably connected to the transmission gear of the roller changing vehicle.

5. The roller track changing mechanism according to claim 1, characterized in that: The first fixed track section includes two first fixed guide rails arranged side by side, and the second fixed track section includes two second fixed guide rails arranged side by side. The first fixed guide rail and the corresponding second fixed guide rail are arranged at intervals, and the transverse shift station is formed between the first fixed guide rail and the second fixed guide rail. The transverse shift roll changing device can controllably connect the first fixed guide rail and the second fixed guide rail for the travel of the roll changing transition vehicle.

6. The roller track changing mechanism according to claim 5, characterized in that: The overturning track segment includes two overturning guide rails arranged side by side, and the overturning guide rails can be swingably arranged around the extension direction of the overturning track segment for switching the working roll changing position and the supporting roll changing position.

7. The roller track changing mechanism according to claim 6, characterized in that: The roll-changing track mechanism further comprises a flipping mechanism, and the flipping mechanism is used to drive the flipping guide rail to switch between the working roll changing position and the supporting roll changing position.

8. The roller track changing mechanism according to claim 7, characterized in that: The turning mechanism comprises a crank structure and a turning drive device, one end of the crank structure is connected to the turning guide rail, and the other end of the crank structure is connected to the turning drive device.

9. The roller track changing mechanism according to claim 1, characterized in that: The roll changing track mechanism also includes a movable cover plate, which is arranged above the working roll changing track. One end of the movable cover plate is fixedly arranged, and the other end of the movable cover plate is used to connect the roll changing vehicle. Driven by the roll changing vehicle, the movable cover plate can telescopically cover the working roll changing track.

10. A track roller changing device, characterized in that: It comprises a roll changing track mechanism, a roll changing car, and a roll changing transition car as described in any one of claims 1 to 9, wherein the roll changing car is movably arranged on the supporting roll changing track of the roll changing track mechanism, and the roll changing transition car is movably arranged on the working roll changing track of the roll changing track mechanism.

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