A kind of auxiliary rolling mill equipment and hot continuous rolling production line

Abstract

The application provides an auxiliary rolling mill device and a hot continuous rolling production line, and relates to the technical field of hot rolling equipment. The auxiliary rolling mill device comprises a rack assembly, a rotating power device and a universal connecting shaft. The rack assembly comprises a rack body, a roll gap adjusting device integrated in the rack body and a pair of roller parts. The rack body is used for being connected to the inlet of an F1 rolling mill. The roller parts are slidingly arranged on the rack body. The roll gap adjusting device is used for driving at least one roller part to move on the rack body. The rotating power device is used for being connected to the inlet of the F1 rolling mill and is arranged at intervals with the rack body. The universal connecting shaft is arranged in one-to-one correspondence with the roller parts. The two ends of the universal connecting shaft are respectively connected to the rotating power device and the corresponding roller part. The auxiliary rolling mill device does not need to be arranged on the foundation support rack. The structure of the auxiliary rolling mill device can be modularized and directly assembled on the F1 rolling mill, so that the auxiliary rolling mill device can better adapt to the modification of the hot continuous rolling production line which has been put into production.

Description

Technical Field

[0001] This invention relates to the field of hot rolling equipment technology, and more specifically, to an auxiliary rolling mill and a hot continuous rolling production line. Background Technology

[0002] In recent years, hot strip mill production lines have generally installed auxiliary rolling mill equipment, also known as F1E mill, between the F1 mill and the descaling mill, to provide strong centering and edge-trimming processes. However, some hot strip mill production lines that have already been put into operation did not include an F1E mill during construction due to investment considerations or immature process design. This may result in suboptimal centering and edge quality of the strip. However, conventional F1E mills require a foundation support frame to be installed on the ground, and their structure needs to be assembled on the foundation support frame. Due to the limited space for modification between the F1 mill and the descaling mill in existing production lines, not only is it difficult to place the foundation support frame, but the assembly of other structures of the F1E mill on the foundation support frame is also difficult, causing inconvenience. Summary of the Invention

[0003] To address at least one of the aforementioned problems, the present invention provides an auxiliary rolling mill and a hot continuous rolling production line.

[0004] On one hand, the present invention provides an auxiliary rolling mill device, comprising:

[0005] A frame assembly, comprising a frame body and a roll gap adjustment device and a pair of roll components integrated into the frame body, the frame body being connected to the entrance of an F1 mill, the roll components being slidably disposed on the frame body, and the roll gap adjustment device being used to drive at least one of the roll components to move on the frame body;

[0006] A rotary power unit is provided, which is connected to the entrance of the F1 mill and is spaced apart from the frame body.

[0007] Universal connecting shafts are provided one-to-one with the rolling mill components, and the two ends of the universal connecting shafts are respectively connected to the rotary power device and the corresponding rolling mill component.

[0008] Optionally, the auxiliary rolling mill equipment further includes a first connecting assembly, which includes a first hole structure disposed on the stand body, a second hole structure disposed on the F1 rolling mill, and a first fastener. The first fastener is used to pass through the first hole structure and the second hole structure to connect the stand body and the F1 rolling mill.

[0009] Optionally, the frame body includes a first connecting part, a second connecting part, two first crossbeams and two second crossbeams. The two first crossbeams are arranged opposite to each other and spaced apart along a first calibration direction. The two second crossbeams are arranged opposite to each of the two first crossbeams and spaced apart along a second calibration direction. The two first crossbeams and the two second crossbeams are respectively connected between the first connecting part and the second connecting part and enclose to form an installation cavity. The roll component is slidably disposed in the installation cavity. At least one set of correspondingly arranged first crossbeams and second crossbeams are provided with the first hole structure. The first calibration direction and the second calibration direction are perpendicular to each other.

[0010] Optionally, the frame body further includes an intermediate connecting beam, which connects the first crossbeam and the second crossbeam.

[0011] Optionally, the frame body is an integrally formed structure; and / or, the frame body further includes a bracket for connection to the F1 rolling mill, and the frame body is supported by the bracket.

[0012] Optionally, the rotary power device includes a drive motor and a reducer. The reducer is used to connect to the F1 rolling mill. The reducer has two input ends and two output ends corresponding to the two input ends. The two input ends are respectively connected to the two drive motors, and the two output ends are respectively connected to the two universal joint shafts.

[0013] Optionally, the auxiliary rolling mill equipment further includes a second connecting assembly, which includes a third hole structure disposed in the reducer, a fourth hole structure disposed in the F1 rolling mill, and a second fastener. The second fastener is used to pass through the third hole structure and the fourth hole structure to connect the reducer and the F1 rolling mill.

[0014] Optionally, the roll gap adjustment device includes a drive cylinder and a sliding seat. The drive cylinder is provided at both opposite ends of the frame body. The telescopic ends of the two drive cylinders are respectively connected to the sliding seats, and the two sliding seats are respectively connected to the two roll components.

[0015] Optionally, the auxiliary rolling mill equipment further includes at least two connecting columns, which are connected between the rotary power unit and the frame body.

[0016] Secondly, the present invention provides a hot continuous rolling production line, including the auxiliary rolling mill equipment described above.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] When installing auxiliary rolling mill equipment between the F1 mill and the descaling mill, the roll gap adjustment device and a pair of roll components are first integrated onto the stand body to form a stand assembly. This integrated structure facilitates compact design. Then, the rotary power unit and the stand body are connected to the entrance of the F1 mill, with the rotary power unit and the stand body spaced apart, for example, vertically spaced. Finally, the rotary power unit and the roll components are connected using a universal joint shaft, thus completing the installation of the auxiliary rolling mill equipment. Compared to the conventional F1E mill, which requires a foundation support frame and its structure to be assembled on the foundation support frame, the auxiliary rolling mill equipment of this invention does not require a foundation support frame. Furthermore, the structure of the auxiliary rolling mill equipment can be modularly assembled directly on the F1 mill, making it better adaptable to the transformation of existing hot strip rolling production lines. Furthermore, when the auxiliary rolling mill equipment is working, the roll gap adjustment device can adjust the opening between a pair of roll components, and the rotation power device can realize the rotation of a pair of roll components, thereby enabling the process of strong centering and edge-flush rolling of the billet passing between the two roll components, thus meeting the process requirements. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the auxiliary rolling mill equipment according to an embodiment of the present invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the installation of the auxiliary rolling mill equipment according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the frame body according to an embodiment of the present invention;

[0022] Figure 4 This is a partial schematic diagram of a hot continuous rolling production line according to an embodiment of the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 100. Auxiliary rolling mill equipment; 101. Frame assembly; 1011. Frame body; 10111. First connecting part; 10112. Second connecting part; 10113. First crossbeam; 10114. Second crossbeam; 10115. Intermediate connecting beam; 1012. Roll gap adjustment device; 10121. Drive cylinder; 10122. Sliding seat; 1013. Roll assembly; 1014. Bracket; 102. Rotary power unit; 1021. Reducer; 1022. Drive motor; 103. Universal connecting shaft; 104. Connecting column; 200. F1 rolling mill; 300. Fine descaling machine. Detailed Implementation

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in sequences other than those illustrated or described herein.

[0027] Furthermore, in the attached diagram, the Z-axis represents the vertical direction, that is, the up and down position, and the positive direction of the Z-axis (that is, the direction the arrow points on the Z-axis) indicates up, and the negative direction of the Z-axis indicates down; in the attached diagram, the X-axis represents the horizontal direction, that is, the left and right position, and the positive direction of the X-axis (that is, the direction the arrow points on the X-axis) indicates left, and the negative direction of the X-axis indicates right; in the attached diagram, the Y-axis represents the vertical direction, that is, the front and back position, and the positive direction of the Y-axis (that is, the direction the arrow points on the Y-axis) indicates front, and the negative direction of the Y-axis indicates back.

[0028] It should also be noted that the meanings of the aforementioned Z-axis, X-axis and Y-axis are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0029] like Figure 1 , 2 As shown, the auxiliary rolling mill equipment 100 of this embodiment includes a frame assembly 101, a rotary power device 102, and a universal joint shaft 103. The frame assembly 101 includes a frame body 1011, a roll gap adjustment device 1012 integrated into the frame body 1011, and a pair of roll components 1013. The frame body 1011 is connected to the entrance of the F1 rolling mill 200. The roll components 1013 are slidably disposed on the frame body 1011. The roll gap adjustment device 1012 is used to drive at least one roll component 1013 to move on the frame body 1011. The rotary power device 102 is connected to the entrance of the F1 rolling mill 200 and is spaced apart from the frame body 1011. The universal joint shaft 103 is arranged in a one-to-one correspondence with the roll components 1013, and the two ends of the universal joint shaft 103 are respectively connected to the rotary power device 102 and the corresponding roll component 1013.

[0030] In this embodiment, the auxiliary rolling mill equipment 100 includes a frame assembly 101, a rotary power device 102, and a universal joint shaft 103, such as Figure 1As shown, the rotary power unit 102, the universal joint shaft 103, and the frame assembly 101 are arranged sequentially from top to bottom. Specifically, the frame assembly 101 includes a frame body 1011, a roll gap adjustment device 1012 integrated into the frame body 1011, and a pair of roll components 1013. The frame body 1011 is used to connect to the lower part of the entrance of the F1 mill 200. The two roll components 1013 are slidably arranged on the frame body 1011 along the X-axis direction. The roll gap adjustment device 1012 is used to drive the two roll components 1013. 013 moves on the frame body 1011; the rotary power device 102 is connected above the entrance of the F1 mill 200 and is spaced apart from the frame body 1011 in the Z-axis direction; the number of universal connecting shafts 103 is equal to the number of roll components 1013, and the two ends of each universal connecting shaft 103 are connected to the rotary power device 102 and the corresponding roll component 1013 respectively. The rotary power device 102 can realize the rotation of the rolls of the two roll components 1013 through the universal connecting shafts 103.

[0031] When installing the auxiliary mill equipment 100 between the F1 mill 200 and the finishing descaling mill 300, the roll gap adjustment device 1012 and a pair of roll components 1013 are first integrated onto the stand body 1011 to form the stand assembly 101. This integrated structure facilitates compact design. Then, the rotary power unit 102 and the stand body 1011 are respectively connected above and below the entrance of the F1 mill 200, with the rotary power unit 102 and the stand body 1011 spaced vertically apart. Then, the auxiliary mill equipment 100 is used... The universal joint 103 connects the rotary power unit 102 and the roll assembly 1013, thus completing the installation of the auxiliary rolling mill equipment 100. Compared with the conventional F1E rolling mill, which requires a foundation support frame to be set up on the foundation and whose structure needs to be assembled on the foundation support frame, the auxiliary rolling mill equipment 100 of the present invention does not require a foundation support frame. Moreover, the structure of the auxiliary rolling mill equipment 100 can be modularly assembled directly on the F1 rolling mill 200, which can better adapt to the transformation of the hot continuous rolling production line that has been put into operation.

[0032] Furthermore, when the auxiliary rolling mill equipment 100 is working, the roll gap adjustment device 1012 can adjust the opening between a pair of roll components 1013, and the rotation power device 102 can realize the rotation of a pair of roll components 1013, thereby enabling the process of strong centering and edge-flush rolling of the billet passing between the two roll components 1013, thus meeting the process requirements.

[0033] Optionally, the auxiliary rolling mill equipment 100 further includes a first connecting assembly, which includes a first hole structure disposed on the stand body 1011, a second hole structure disposed on the F1 rolling mill 200, and a first fastener. The first fastener is used to pass through the first hole structure and the second hole structure to connect the stand body 1011 and the F1 rolling mill 200.

[0034] It is important to understand that in order to install the frame body 1011, the gate of F1 rolling mill 200 needs to be modified accordingly, that is, a second hole structure needs to be set on the gate of F1 rolling mill 200.

[0035] In this embodiment, the end of the frame body 1011 facing the F1 mill 200 is provided with a plurality of first hole structures spaced apart along the X-axis direction. The first hole structure is a through threaded hole. The end of the archway of the F1 mill 200 facing the frame body 1011 is provided with a second hole structure corresponding to the first hole structure. The second hole structure is also a threaded hole. The first fastener is a bolt. The bolt shank is threadedly connected to the first hole structure and the second hole structure to fix the frame body 1011 on the archway of the F1 mill 200.

[0036] Thus, when installing the frame body 1011, first align the first connecting hole of the frame body 1011 with the second connecting hole of the F1 rolling mill 200, and then thread the first fastener into the first connecting hole and the second connecting hole.

[0037] In this embodiment, the number of the first hole structure and the second hole structure is not specifically limited, and is determined according to actual needs.

[0038] In other embodiments, the first hole structure can also be a through hole, with the bolt nut disposed in the first hole structure. In order to hide the bolt nut, a countersunk can be provided in the through hole to accommodate the bolt nut.

[0039] Optionally, the frame body 1011 includes a first connecting part 10111, a second connecting part 10112, two first crossbeams 10113 and two second crossbeams 10114. The two first crossbeams 10113 are arranged opposite to each other and spaced apart along a first calibration direction. The two second crossbeams 10114 are arranged opposite to each other and spaced apart along a second calibration direction. The two first crossbeams 10113 and the two second crossbeams 10114 are respectively connected between the first connecting part 10111 and the second connecting part 10112 and enclose to form an installation cavity. The roll component 1013 is slidably disposed in the installation cavity. At least one set of correspondingly arranged first crossbeams 10113 and second crossbeams 10114 are provided with a first hole structure. The first calibration direction and the second calibration direction are perpendicular to each other.

[0040] It should be understood that the first calibration direction in this embodiment refers to: such as Figure 1 The Y-axis direction is shown; the second calibration direction refers to: as shown Figure 1 The Z-axis direction is shown.

[0041] like Figure 1 , 3As shown, the outer contour of the frame body 1011 is generally a cuboid structure. Two first crossbeams 10113 are arranged opposite each other and spaced apart along the X-axis. Two second crossbeams 10114 are arranged opposite each other and spaced apart along the Z-axis. The two first crossbeams 10113 and the two second crossbeams 10114 are respectively connected between the first connecting part 10111 and the second connecting part 10112 and enclose to form an installation cavity. The roll component 1013 is slidably disposed in the installation cavity. That is, the roll of the roll component 1013 is arranged in the Y-axis direction directly opposite the space between the first crossbeams 10113 and the second crossbeams 10114. This facilitates the blank material to pass through the frame body 1011 along the Y-axis direction and pass through the two roll components 1013 for rolling.

[0042] In this embodiment, in the Y-axis direction, the first crossbeam 10113 and the second crossbeam 10114 facing the archway of the F1 rolling mill 200 are both provided with a first hole structure. The first hole structures of the two can be set correspondingly in the Z-axis direction or staggered in the X-axis direction. There is no restriction here, and it depends on the actual needs. By fixing at multiple points in the Z-axis direction and the X-axis direction, a stable connection between the frame body 1011 and the archway of the F1 rolling mill 200 can be achieved.

[0043] In this embodiment, a first guide plate and a pressure plate are mounted on the first crossbeam 10113, forming a slide between the first guide plate and the pressure plate. A second guide plate is mounted on the second crossbeam 10114. The roll assembly 1013 has a conventional structure, including a roll, bearing housings, self-aligning roller bearings, a sliding plate, and rollers. The roll is made of alloy forged steel, with self-aligning roller bearings at both ends. The two bearing housings are made of cast steel and are equipped with sliding plates and rollers, and are connected by a sliding seat 10122. The sliding plate of the upper bearing housing is slidably mounted on the first guide plate, and the roller of the upper bearing housing is positioned in the slide between the first guide plate and the pressure plate. The sliding plate and roller of the lower bearing housing are supported on the second guide plate of the second crossbeam 10114. This allows the roll assembly 1013 to be mounted on the frame.

[0044] Furthermore, the pressure plate on the first crossbeam 10113 includes a first pressure plate unit, a second pressure plate unit, and a third pressure plate unit arranged sequentially along the X-axis. The first pressure plate unit, the second pressure plate unit, and the third pressure plate unit are detachably connected to the frame body 1011. The second pressure plate located in the middle can be fastened to the upper crossbeam by a positioning pin, which facilitates disassembly and allows for quick disassembly during roller changes.

[0045] Optionally, the frame body 1011 also includes an intermediate connecting beam 10115, which connects the first crossbeam 10113 and the second crossbeam 10114.

[0046] It should be understood that the distance between the two arches of the F1 rolling mill 200 is generally large, which will result in the length of the first crossbeam 10113 and the second crossbeam 10114 being relatively long. Since the two ends of the first crossbeam 10113 and the second crossbeam 10114 are connected by the first connecting part 10111 and the second connecting part 10112, the middle position between them is prone to downward deformation.

[0047] In view of the above problems, in this embodiment, at least one intermediate connecting beam 10115 is connected between the first crossbeam 10113 and the second crossbeam 10114, which are arranged vertically and vertically respectively. That is, the upper end of the intermediate connecting beam 10115 is connected to the first crossbeam 10113, and the lower end of the intermediate connecting beam 10115 is connected to the second crossbeam 10114. In this way, the probability of downward deformation of the first crossbeam 10113 and the second crossbeam 10114 is effectively reduced by the support of the intermediate connecting beam 10115.

[0048] In this embodiment, the number of intermediate connecting beams 10115 is not specifically limited and depends on actual needs, but it cannot prevent the blank material from passing through the frame body 1011.

[0049] Optionally, the frame body 1011 is an integrally formed structure; and / or, the frame body 1011 further includes a bracket 1014 for connection to the F1 mill 200, and the frame body 1011 is supported by the bracket 1014.

[0050] In this embodiment, the frame body 1011 is an integrally formed structure. Specifically, the frame body 1011 is an integral cast steel structure. Compared with the assembled frame, it improves the rigidity of the equipment on the one hand, and eliminates the need for assembly of the frame body 1011 itself on the other hand, thus improving the speed of installation and construction.

[0051] It should be understood that an inlet guide is provided between the existing F1 rolling mill 200 and the descaling machine. After the auxiliary rolling mill equipment 100 of this embodiment is added, the inlet guide needs to be removed. At this time, the stop groove on the gate of the F1 rolling mill 200, which was originally used to connect with the inlet guide, will be idle.

[0052] In this embodiment, the bracket 1014 is used to connect to the archway of the F1 rolling mill 200 and support the frame body 1011. In one embodiment, the bracket 1014 includes a first plate and a second plate that are perpendicularly connected to each other. The first plate is used to support the frame body 1011, and the second plate is used to connect to the stop groove of the archway of the F1 rolling mill 200. Specifically, the second plate is fixed to the stop groove by bolts. This further improves the installation stability of the frame body 1011.

[0053] Optionally, the rotary power unit 102 includes a drive motor 1022 and a reducer 1021. The reducer 1021 is used to connect to the F1 mill 200. The reducer 1021 has two input ends and two output ends respectively corresponding to the two input ends. The two input ends are respectively connected to two drive motors 1022, and the two output ends are respectively connected to two universal joint shafts 103.

[0054] like Figure 2 As shown, the reducer 1021 is used to connect to the F1 rolling mill 200. The reducer 1021 has two input ends and two output ends, with the two input ends corresponding to the two output ends. The drive motors 1022 are vertical motors, and the output shafts of the two drive motors 1022 are connected to the two input ends respectively. One end of each of the two universal joint shafts 103 is connected to the two output ends respectively. In this way, the two drive motors 1022 drive the two universal joint shafts 103 to rotate through the reducer 1021, thereby realizing the rotation of the two roll components 1013.

[0055] It should be understood that in this embodiment, the reducer 1021 has two independent gear transmission mechanisms inside, each corresponding to one input end and one output end. Compared to setting two reducers 1021, this reduces the number of reducers 1021, thereby saving installation steps.

[0056] Optionally, the auxiliary rolling mill equipment 100 further includes a second connecting assembly, which includes a third hole structure disposed in the reducer 1021, a fourth hole structure disposed in the F1 rolling mill 200, and a second fastener. The second fastener is used to pass through the third hole structure and the fourth hole structure to connect the reducer 1021 and the F1 rolling mill 200.

[0057] It is important to understand that in order to install the frame body 1011, the gate of F1 rolling mill 200 needs to be modified accordingly, that is, a fourth hole structure needs to be set on the gate of F1 rolling mill 200.

[0058] In this embodiment, the reducer 1021 includes a housing and a connecting plate that are connected to each other. The connecting plate has multiple through third hole structures at both ends in the X-axis direction. The third hole structures are threaded holes. The end of the F1 mill 200 facing the connecting plate has a fourth hole structure that corresponds to the third hole structure. The fourth hole structure is also a threaded hole. The second fastener is a bolt. The bolt shank is threadedly connected to the third hole structure and the fourth hole structure to fix the reducer 1021 on the F1 mill 200.

[0059] Thus, when installing the reducer 1021, first align the third connecting hole of the connecting plate of the reducer 1021 with the fourth connecting hole of the arch of the F1 rolling mill 200, and then thread the second fastener into the third connecting hole and the fourth connecting hole.

[0060] In this embodiment, the number of the third and fourth hole structures is not specifically limited and can be determined according to actual needs.

[0061] In other embodiments, the third hole structure may also be a through hole, with the bolt nut located at the first hole structure.

[0062] Optionally, the roll gap adjustment device 1012 includes a drive cylinder 10121 and a sliding seat 10122. The two ends of the frame body 1011 are respectively provided with drive cylinders 10121, and the extension and retraction ends of the two drive cylinders 10121 are respectively connected to the sliding seats 10122. The two sliding seats 10122 are respectively connected to two roll components 1013.

[0063] like Figure 1 As shown, the roll gap adjustment device 1012 includes a drive cylinder 10121 and a sliding seat 10122. Drive cylinders 10121 are respectively provided at opposite ends of the frame body 1011. Specifically, the first connecting part 10111 and the second connecting part 10112 of the frame body 1011 are each connected to a drive cylinder 10121. The sliding seat 10122 is slidably disposed in the mounting cavity of the frame body 1011. The telescopic ends of the two drive cylinders 10121 are respectively connected to the sliding seats 10122, and the two sliding seats 10122 are respectively connected to two roll components 1013. Thus, the telescopic movement of the two drive cylinders 10121 enables the movement of the two roll components 1013, thereby adjusting the opening size between the two roll components 1013, ultimately adapting to billets of different widths and effectively improving the versatility of the auxiliary rolling mill equipment 100.

[0064] Optionally, it also includes at least two connecting columns 104, which are connected between the rotating power unit 102 and the frame body 1011.

[0065] like Figure 1 As shown, two connecting columns 104 are spaced apart along the X-axis between the frame body 1011 and the reducer 1021. In this way, the reducer 1021, the frame body 1011 and the two connecting columns 104 form a closed frame structure, which effectively increases the overall stability.

[0066] Another embodiment of the hot continuous rolling production line of the present invention includes the auxiliary rolling mill equipment 100 as described above.

[0067] In this embodiment, the hot strip mill production line also includes an F1 rolling mill 200 and a descaling mill 300, such as Figure 4As shown, the auxiliary rolling mill equipment 100 is located between the F1 rolling mill 200 and the finishing descaling mill 300, and the auxiliary rolling mill equipment 100 is installed at the entrance of the F1 rolling mill 200.

[0068] The hot strip mill production line of this embodiment has the same beneficial effects as the auxiliary rolling mill equipment 100 described above compared to the prior art, so it will not be described again here.

[0069] Readers should understand that in the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0070] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A hot continuous rolling production line, wherein an auxiliary rolling mill is added between an F1 rolling mill (200) and a finishing descaling mill (300), requiring the removal of the inlet guide between the F1 rolling mill (200) and the finishing descaling mill (300), characterized in that, The auxiliary rolling mill equipment can be modularly assembled directly on the F1 rolling mill (200), and the auxiliary rolling mill equipment includes: A frame assembly (101) includes a frame body (1011), a roll gap adjustment device (1012) integrated into the frame body (1011), and a pair of roll components (1013). The frame body (1011) is connected to the entrance of the F1 mill (200). The roll components (1013) are slidably disposed on the frame body (1011). The roll gap adjustment device (1012) is used to drive at least one of the roll components (1013) to move on the frame body (1011). The frame body (1011) includes a first connecting portion (10111), a second connecting portion (10112), and two... The roll assembly consists of a first crossbeam (10113) and two second crossbeams (10114). The two first crossbeams (10113) are positioned opposite each other and spaced apart along a first calibration direction. The two second crossbeams (10114) are positioned opposite each other and spaced apart along a second calibration direction. The two first crossbeams (10113) and the two second crossbeams (10114) are respectively connected between the first connecting part (10111) and the second connecting part (10112) and together form an installation cavity. The roll assembly (1013) is slidably disposed in the installation cavity. The first calibration direction and the second calibration direction are perpendicular to each other. A rotary power unit (102) is used to connect to the entrance of the F1 mill (200) and is spaced apart from the frame body (1011); Universal connecting shaft (103), the universal connecting shaft (103) is provided in a one-to-one correspondence with the rolling mill component (1013), and the two ends of the universal connecting shaft (103) are respectively connected to the rotating power device (102) and the corresponding rolling mill component (1013); It also includes a first connecting component, which includes a first hole structure disposed on the frame body (1011), a second hole structure disposed on the F1 mill (200), and a first fastener. The first fastener is used to pass through the first hole structure and the second hole structure to connect the frame body (1011) and the F1 mill (200); at least one set of correspondingly disposed first crossbeams (10113) and second crossbeams (10114) are respectively provided with the first hole structure; The frame body (1011) also includes a bracket (1014), which is used to connect to the archway of the F1 mill (200) and support the frame body (1011); the bracket (1014) includes a first plate and a second plate that are perpendicularly connected to each other, the first plate is used to support the frame body (1011), and the second plate is used to connect to the stop groove on the archway of the F1 mill (200) that was originally used to connect with the entrance guide.

2. The hot continuous rolling production line according to claim 1, characterized in that, The frame body (1011) also includes an intermediate connecting beam (10115), which connects the first crossbeam (10113) and the second crossbeam (10114) respectively.

3. The hot continuous rolling production line according to claim 1, characterized in that, The frame body (1011) is a one-piece molded structure.

4. The hot continuous rolling production line according to claim 1, characterized in that, The rotary power device (102) includes a drive motor (1022) and a reducer (1021). The reducer (1021) is used to connect to the F1 mill (200). The reducer (1021) has two input ends and two output ends respectively corresponding to the two input ends. The two input ends are respectively connected to the two drive motors (1022), and the two output ends are respectively connected to the two universal joint shafts (103).

5. The hot continuous rolling production line according to claim 4, characterized in that, It also includes a second connecting component, which includes a third hole structure disposed in the reducer (1021), a fourth hole structure disposed in the F1 mill (200), and a second fastener, which is used to pass through the third hole structure and the fourth hole structure to connect the reducer (1021) and the F1 mill (200).

6. The hot continuous rolling production line according to claim 1, characterized in that, The roll gap adjustment device (1012) includes a drive cylinder (10121) and a sliding seat (10122). The drive cylinder (10121) is provided at opposite ends of the frame body (1011). The telescopic ends of the two drive cylinders (10121) are respectively connected to the sliding seats (10122). The two sliding seats (10122) are respectively connected to the two roll components (1013).

7. The hot continuous rolling production line according to claim 1, characterized in that, It also includes at least two connecting columns (104) that connect the rotating power device (102) and the frame body (1011).

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