A rolling device for a nickel-based pipeline steel clad plate

Abstract

The application provides a nickel-based pipeline steel composite plate rolling device, and relates to the technical field of plate rolling, which comprises a supporting roller and a press roller, rolling support assemblies are arranged between the press roller and the two ends of the two supporting rollers, rolling limiting assemblies are arranged at the two ends of the press roller and the two supporting rollers, the rolling support assembly comprises an abutting plate and a backing plate; the technical key points are as follows: the backing plate of a fixed thickness is arranged on the top of the erecting seat, the top of the two positioning threaded rods passes through the inside of the backing plate, the distance between the top surface of the abutting plate and the top surface of the supporting roller is less than or equal to the thickness of the nickel-based pipeline steel composite plate obtained through final rolling, when the blank plate is rolled into the nickel-based pipeline steel composite plate, the rolling support assembly far from the rolling area is supported by the rolling limiting assembly, the backing plate and the erecting seat are arranged between the press roller and the supporting roller to limit the extension of the rolled blank plate along the axis direction of the supporting roller, and the product quality is further ensured.

Description

Technical Field

[0001] This invention relates to the field of plate rolling technology, specifically to a rolling apparatus for nickel-based pipeline steel composite plates. Background Technology

[0002] Rolling, a plastic forming process that applies pressure to a metal billet using rotating rolls to reduce its cross-section and increase its length, falls under the category of metal processing. Rolling is primarily used to produce metal materials such as profiles, plates, and pipes. Based on temperature, rolling is divided into hot rolling (high-temperature processing) and cold rolling (room-temperature processing). The former can refine grains but is prone to residual stress, while the latter requires annealing to improve mechanical properties. According to the direction of the rolled material's movement, it can be divided into longitudinal rolling, transverse rolling, and skew rolling, corresponding to different roll rotation methods and material deformation paths.

[0003] Nickel-based pipeline steel composite plates, as a type of composite material, combine the advantages of nickel-based alloys and pipeline steel. They are primarily used in oil and gas pipelines transporting corrosive media, offering high strength, corrosion resistance, and cost-effectiveness. A common material combination is N08825+L415 (nickel-based alloy + pipeline steel), which combines the strength of carbon steel with the corrosion resistance of nickel-based alloys. Nickel-based pipeline steel composite plates are suitable for complex transportation environments such as oil fields and oil and gas fields, and are particularly well-suited for pipelines handling corrosive media.

[0004] Nickel-based pipeline steel composite plates are typically produced through vacuum welding and hot rolling to achieve metallurgical bonding (i.e., rolling composite method). This method overcomes the shortcomings of traditional explosive composite methods, improving production efficiency and material properties. During the rolling production of nickel-based pipeline steel composite plates, it is necessary to optimize heating temperature and reduction rate, control element diffusion, reduce brittle phase formation, and employ techniques such as asymmetric assembly (adjusting the thickness or structural ratio of the base material and composite material to optimize deformation coordination during rolling, thereby improving the interfacial bonding strength and production efficiency of the composite plate) and edge strip constraints to address the deformation differences between the nickel-based alloy and the steel.

[0005] When nickel-based pipeline steel composite plates are produced by rolling mills, asymmetric billet assembly and edge strip constraints can be used to reduce the impact of deformation differences between nickel-based alloys and steel on the final rolled plate. However, in the actual production process, due to the difficulty in adding obstructions between the rolling rolls, the billet will still extend from the center area of ​​the rolling rolls to both ends to a certain extent, resulting in uncontrollable deformation differences that affect the quality of nickel-based pipeline steel composite plates. Summary of the Invention

[0006] To overcome the shortcomings of existing plate rolling devices, which are limited by the difficulty of adding obstructions between rolling rolls, causing the billet to extend from the center of the rolling rolls to both ends to a certain extent, resulting in uncontrollable deformation differences and affecting the quality of nickel-based pipeline steel composite plates, this application provides a nickel-based pipeline steel composite plate rolling device. By placing a fixed-thickness pad inside the receiving groove and using the tops of two positioning threaded rods passing through the inside of the pad, the distance between the top surface of the abutment plate and the top surface of the support roller is less than or equal to the final thickness of the rolled nickel-based pipeline steel composite plate. The motor reduces the output speed through a reduction gearbox and drives the drive gear to rotate, thereby driving the support roller to rotate. Since the billet passes between the pressure roller and the support roller, the billet can be rolled into a nickel-based pipeline steel composite plate. The rolling support assembly is supported by a rolling limiting assembly at a location away from the rolling area, so that the pad is mounted between the pressure roller and the support roller to restrict the extension of the rolled billet along the axis of the support roller.

[0007] The rolling limiting assembly supporting the billet controls the movement of the roller support via a hydraulic push rod, thereby driving the pressure roller to move to the bottom. The U-shaped iron synchronously drives the pressure seat to move to the bottom. The two side pressure plates on the pressure seat apply pressure to the two pressure plates on the drive seat, causing the pressure plates to move a certain distance towards the billet. This, in turn, drives the abutment plate through the drive seat, adjusting screw, limiting column, and bottom plate, causing the pad plate to move towards the billet. Finally, the two pad plates that are close to each other between the pressure roller and the support roller limit the distance the rolled billet extends along the axis of the support roller. The position of the pad plate is stable, and there will be no situation where the pad plate is squeezed by the rolled billet and moves between the pressure roller and the support roller.

[0008] The technical solution adopted by the embodiments of this application to solve its technical problem is:

[0009] A rolling apparatus for nickel-based pipeline steel composite plates includes support rollers and pressure rollers. Two support rollers are provided and are kept parallel in the same horizontal plane.

[0010] The pressure roller is positioned on top of a support roller and is parallel to the support roller.

[0011] A rolling support assembly is provided between both ends of the pressure roller and the two support rollers, and a rolling limiting assembly is provided at both ends of the pressure roller and the two support rollers. The rolling support assembly includes a backing plate, a support base is integrally formed at the bottom of one end of the backing plate, and a storage groove is formed between the top of one end of the backing plate and the top of the support base. A pad is provided on the inner side of the storage groove.

[0012] Both ends of the two support rollers are provided with rolling limit components, and the bottom of the two rolling limit components is provided with a rolling device base. A motor is mounted on the top of one end of the rolling device base. The motor is connected to a drive gear through a reduction gearbox. The outer side of the two support rollers near the motor end is connected to a driven gear in a pin-fitting manner. The bottom of the two driven gears is connected to an intermediate gear in a meshing manner.

[0013] The rolling limiting component supports the rolling support component between the pressure roller and the support roller, and restricts the abutment plate from moving from the center position between the pressure roller and the support roller to both ends.

[0014] In one possible implementation, both of the rolling limiting assemblies include roller holders, with vertical plates mounted on the top of both ends of the roller holders. A horizontal plate is mounted on the top of the two vertical plates located at the same roller holder, and a hydraulic push rod is mounted on the top of the horizontal plate. The movable end of the hydraulic push rod passes through the interior of the horizontal plate and is mounted on a roller support. Both ends of the two supporting rollers are respectively mounted inside the two roller holders, and both ends of the pressure roller are respectively mounted inside the two roller supports.

[0015] In one possible implementation, two storage slots are provided at the center of the top of the support base. Each of the two storage slots is equipped with a spring. The inner side of the spring is provided with a positioning threaded rod that is threaded to the support base. A disc is integrally formed in the middle of the positioning threaded rod. The spring is supported between the bottom surface of the disc and the bottom inner wall of the storage slot. The pad is adapted to be connected to the outside of the two positioning threaded rods and cooperates with the side wall of the storage slot to restrict the movement of the pad in the horizontal plane.

[0016] In one possible implementation, four limiting crossbars are fitted between the two upright plates, and the four limiting crossbars are arranged in a rectangular shape; the abutment plate is movably connected between the four limiting crossbars, the support base is adapted to be connected to the top of the two support rollers, and the two support rollers are rotatably connected to the bottom of the support base.

[0017] In one possible implementation, two first limiting rods are assembled and connected to the top of both sides of the roller support. The two first limiting rods are located on both sides of the hydraulic push rod and are slidably connected inside the first limiting rods.

[0018] In one possible implementation, a base plate is welded to the top of the abutment plate at the end away from the support base. A drive seat is provided on the side of the base plate facing the support base. A pressure seat is movably connected to the top of the drive seat. A U-shaped iron is assembled between one side of the pressure seat and the surface of the roller support. A second limiting rod is assembled to the top of the pressure seat. The second limiting rod is slidably connected inside the horizontal plate. The drive seat is slidably connected to the top surface of the two limiting horizontal bars located at the top.

[0019] In one possible implementation, the drive base includes a drive block, and both sides of the drive block away from the base plate are integrally formed with pressure plates; the cross-section of the pressure plate is a right trapezoid, and the inclined surface of the trapezoid faces the side of the base plate.

[0020] In one possible implementation, the drive block has an internally threaded adjustment screw connected to the end facing the base plate. A limit post is integrally formed in the middle of the adjustment screw. A control arm is assembled to the end of the adjustment screw away from the drive seat. A cross groove is provided on the top of the base plate. The adjustment screw and the limit post are both movably connected inside the cross groove, and the limit post and the cross groove cooperate to restrict the movement of the adjustment screw along its axis.

[0021] In one possible implementation, the pressure seat includes a connecting plate, and a side pressure plate is integrally formed at the bottom of the two long sides of the connecting plate. The side pressure plate has a right-angled trapezoidal cross section, and its trapezoidal inclined surface is in contact with the trapezoidal inclined surface of the pressure plate.

[0022] In one possible implementation, the bottom of the pressure seat at the end away from the base plate is integrally formed with a limiting strip, which is slidably connected between the two pressure plates.

[0023] The beneficial effects of this application are as follows:

[0024] Firstly, in this solution, a fixed-thickness pad is placed inside the receiving groove, and the tops of two positioning threaded rods pass through the inside of the pad, making the distance between the top surface of the abutment plate and the top surface of the support roller less than or equal to the thickness of the final rolled nickel-based pipeline steel composite plate. The motor reduces the output speed through a reduction gearbox and drives the drive gear to rotate, thereby driving the support roller to rotate. Since the billet passes between the pressure roller and the support roller, the billet can be rolled into a nickel-based pipeline steel composite plate. The rolling support assembly is supported by the rolling limit assembly at a distance from the rolling area, so that the pad is mounted between the pressure roller and the support roller to limit the extension of the rolled billet along the axis of the support roller. This solves the problem of the rolled billet extending excessively along the axis of the support roller, which increases the influence of the deformation difference between nickel-based alloy and steel.

[0025] Secondly, in this scheme, the hydraulic push rod controls the roller support to drive the pressure roller to move to the bottom, and the U-shaped iron synchronously drives the pressure seat to move to the bottom. The two side pressure plates on the pressure seat apply pressure to the two pressure plates on the drive seat, causing the pressure plates to move a certain distance towards the billet. Thus, with the help of the drive seat, adjusting screw, limiting column and bottom plate, the abutment plate is driven to move the pad plate towards the billet. Finally, the two pad plates between the pressure roller and the support roller, which are close to each other, limit the distance that the rolled billet extends along the axis of the support roller. The position of the pad plate is stable, and there will be no situation where the pad plate is squeezed by the rolled billet and moves between the pressure roller and the support roller. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a nickel-based pipeline steel composite plate rolling device according to the present invention;

[0027] Figure 2 This invention relates to a rolling apparatus for nickel-based pipeline steel composite plates. Figure 1 Enlarged diagram of section A in the middle;

[0028] Figure 3 This is a schematic diagram showing the state of the rolling support assembly between the pressure roller and the support roller in the rolling device for rolling nickel-based pipeline steel composite plates according to the present invention.

[0029] Figure 4 This is a schematic diagram of the rolling support assembly of a nickel-based pipeline steel composite plate rolling device according to the present invention;

[0030] Figure 5 This is a cross-sectional view of the pad and support base of the nickel-based pipeline steel composite plate rolling device according to the present invention.

[0031] Figure 6 This invention relates to a rolling apparatus for nickel-based pipeline steel composite plates. Figure 5 Enlarged diagram of section B;

[0032] Figure 7 This is a schematic diagram of the connection structure between the base plate and the drive seat of the nickel-based pipeline steel composite plate rolling device of the present invention;

[0033] Figure 8 This invention relates to a rolling apparatus for nickel-based pipeline steel composite plates. Figure 7 Enlarged schematic diagram of section C.

[0034] Figure label:

[0035] 1. Rolling limiting assembly; 101. Horizontal plate; 102. Vertical plate; 103. Roller support; 104. Hydraulic push rod; 105. First limiting upright; 106. Roller support; 107. Drive seat; 1071. Pressure plate; 1072. Drive block; 108. Second limiting upright; 109. Pressure seat; 1091. Side pressure plate; 1092. Connecting plate; 1093. Limiting strip; 110. U-shaped iron; 111. Adjusting screw; 112. Limiting post; 113. Control arm;

[0036] 2. Rolling support assembly; 201. Pad; 202. Abutment plate; 203. Base plate; 204. Support base; 205. Limiting crossbar; 206. Spring; 207. Disc; 208. Positioning threaded rod;

[0037] 3. Rolling device base; 4. Drive gear; 5. Gearbox; 6. Motor; 7. Pressure roller; 8. Driven gear; 9. Intermediate gear; 10. Collection groove; 11. Collection slot; 12. Cross groove; 13. Support roller. Detailed Implementation

[0038] The technical solution in this application embodiment is to solve the problems mentioned in the background art, and the overall idea is as follows:

[0039] Example 1:

[0040] This embodiment describes the specific structure of a rolling device for nickel-based pipeline steel composite plates. See details below. Figures 1-6 As shown, it includes two support rollers 13 and a pressure roller 7. The two support rollers 13 are parallel to each other in the same horizontal plane. The pressure roller 7 is disposed on top of one of the support rollers 13 and is parallel to the support roller 13.

[0041] A rolling support assembly 2 is provided between both ends of the pressure roller 7 and the two support rollers 13. A rolling limiting assembly 1 is provided at both ends of the pressure roller 7 and the two support rollers 13. The rolling support assembly 2 includes an abutment plate 202. A support base 204 is integrally formed at the bottom of one end of the abutment plate 202. A receiving groove 10 is formed between the top of one end of the abutment plate 202 and the top of the support base 204. A pad plate 201 is provided on the inner side of the receiving groove 10.

[0042] Both ends of the two support rollers 13 are provided with rolling limit components 1. Both rolling limit components 1 include roller frame seats 103. The tops of both ends of the two roller frame seats 103 are assembled with vertical plates 102. The tops of the two vertical plates 102 located at the same roller frame seat 103 are assembled with horizontal plates 101. The tops of the horizontal plates 101 are assembled with hydraulic push rods 104. The movable end of the hydraulic push rods 104 passes through the interior of the horizontal plates 101 and is assembled with roller supports 106.

[0043] The bottom of the two rolling limit components 1 is provided with a rolling device base 3. A motor 6 is assembled and connected to the top of one end of the rolling device base 3. The motor 6 is connected to the drive gear 4 through the reduction gearbox 5. The two support rollers 13 are pin-connected to the driven gear 8 near the motor 6. The bottom of the two driven gears 8 are meshed and connected to the intermediate gear 9.

[0044] Among them, the rolling limiting component 1 supports the rolling support component 2 between the pressure roller 7 and the support roller 13, restricting the abutment plate 202 from the center position between the pressure roller 7 and the support roller 13 to both ends. The motor 6 reduces the output speed through the reduction gearbox 5 and drives the drive gear 4 to drive the driven gear 8 meshing with it to rotate. Since the intermediate gear 9 is connected between the two driven gears 8, the two support rollers 13 can be in the same direction of rotation.

[0045] Secondly, both ends of the two support rollers 13 are respectively mounted inside the two roller supports 103, and both ends of the pressure roller 7 are respectively mounted inside the two roller supports 106. When one end of the billet overlaps the top of one support roller 13 and moves between the other support roller 13 and the pressure roller 7, the hydraulic push rod 104 controls the roller support 106 to drive the pressure roller 7 to move to the bottom, reducing the distance between the pressure roller 7 and the support rollers 13, so that the billet can be rolled into a nickel-based pipeline steel composite plate (thinner than the billet).

[0046] Meanwhile, in order to ensure that the hydraulic push rod 104 controls the roller support 106 to drive the pressure roller 7 to move up and down stably, such as... Figure 4 As shown, two first limiting rods 105 are assembled and connected to the top of both sides of the roller support 106. By positioning the two first limiting rods 105 on both sides of the hydraulic push rod 104 and slidably connecting them inside the first limiting rods 105, the first limiting rods 105 and the horizontal plate 101 can cooperate to assist the hydraulic push rod 104 in controlling the up and down movement of the roller support 106.

[0047] Furthermore, in order to prevent the rolled slab from extending excessively along the axis of the support roll 13, and to increase the effect of the deformation difference between the nickel-based alloy and the steel, such as... Figure 3 , Figure 5 and Figure 6 As shown, by placing the pad 201 inside the receiving groove 10, keeping the distance between the top surface of the abutment plate 202 and the top surface of the support roller 13 less than or equal to the thickness of the final nickel-based pipeline steel composite plate, and by being supported by the rolling limiting assembly 1 at a distance of the rolling support assembly 2 from the rolling area, the extension of the rolled billet along the axis of the support roller 13 can be greatly restricted.

[0048] At the same time, in order to keep the abutment plate 202 in a horizontal plane, such as Figure 3 and Figure 4 As shown, four limiting crossbars 205 are assembled between the two upright plates 102. The four limiting crossbars 205 are rectangular. The abutment plate 202 is movably connected between the four limiting crossbars 205, and the support base 204 is adapted to be connected to the top of the two support rollers 13. Without affecting the rotation of the two support rollers 13 to the bottom of the support base 204, the abutment plate 202 can be supported to move in the horizontal direction.

[0049] In some examples, two storage slots 11 are provided at the center of the top of the mounting base 204. A spring 206 is provided inside each of the two storage slots 11. A positioning threaded rod 208 that is threadedly connected to the mounting base 204 is provided on the inner side of the spring 206. A disc 207 is integrally formed in the middle of the positioning threaded rod 208.

[0050] By supporting the spring 206 between the bottom surface of the disc 207 and the bottom inner wall of the storage groove 11, it is possible to prevent the positioning threaded rod 208 from loosening without external force after it is threadedly connected to the mounting base 204.

[0051] Meanwhile, by adapting the pad 201 to the outside of the two positioning threaded rods 208 and having it cooperate with the side wall of the receiving groove 10, the movement of the pad 201 in the horizontal plane can be restricted. When it is necessary to change the thickness of the obtained nickel-based pipeline steel composite plate, it is only necessary to use pads 201 of different thicknesses to control the distance between the top surface of the abutment plate 202 and the top surface of the support roller 13.

[0052] The above design places a fixed-thickness pad 201 inside the receiving groove 10 and uses the tops of two positioning threaded rods 208 to pass through the inside of the pad 201, so that the distance between the top surface of the abutment plate 202 and the top surface of the support roller 13 is less than or equal to the thickness of the nickel-based pipeline steel composite plate finally rolled.

[0053] Meanwhile, during the positioning of the pad 201, the spring 206 can be compressed by the disc 207 by adjusting the threaded connection between the positioning threaded rod 208 and the support 204, so as to prevent the threaded connection between the positioning threaded rod 208 and the support 204 from loosening, and to control the length of the positioning threaded rod 208 extending from the inside of the receiving groove 11 and exposed on the top surface of the support 204, so as to prevent the positioning threaded rod 208 from being too long exposed and forming a protrusion on the top surface of the pad 201 when it finally passes through the inside of the pad 201, which would affect the rolling of the billet.

[0054] When the hydraulic push rod 104 controls the roller support 106 to move the pressure roller 7 to the bottom, reducing the distance between the pressure roller 7 and the support roller 13, the motor 6 reduces the output speed through the reduction gearbox 5 and drives the drive gear 4 to drive the driven gear 8 meshing with it to rotate (because the intermediate gear 9 is connected between the two driven gears 8, the two support rollers 13 are in the same direction of rotation). As the billet passes between the pressure roller 7 and the support roller 13, the billet can be rolled into a nickel-based pipeline steel composite plate when the support roller 13 rolls. The rolling support assembly 2 is supported by the rolling limit assembly 1 at a distance away from the rolling area, so that the pad 201 cooperates with the support seat 204 between the pressure roller 7 and the support roller 13 to limit the extension of the rolled billet along the axis of the support roller 13. This solves the problem of the rolled billet extending excessively along the axis of the support roller 13, which increases the influence of the deformation difference between the nickel-based alloy and the steel.

[0055] Example 2:

[0056] Based on Example 1, this example describes the connection state between the rolling limiting assembly 1 and the rolling support assembly 2, such as... Figures 3 to 5 , Figure 7 and Figure 8 As shown, it includes a support plate 202. A base plate 203 is welded to the top of the end of the support plate 202 away from the support base 204. A drive seat 107 is provided on the side of the base plate 203 facing the support base 204. A pressure seat 109 is movably connected to the top of the drive seat 107. A U-shaped iron 110 is assembled between one side of the pressure seat 109 and the surface of the roller support 106. A second limiting rod 108 is assembled to the top of the pressure seat 109.

[0057] In this configuration, by connecting the U-shaped iron 110 between the roller support 106 and the pressure seat 109, when the hydraulic push rod 104 controls the roller support 106 to drive the pressure roller 7 to move up and down, the pressure seat 109 can move up and down synchronously with the help of the U-shaped iron 110. In this state, the second limiting rod 108 is slidably connected to the inside of the horizontal plate 101, and the drive seat 107 is slidably connected to the top surface of the two limiting horizontal bars 205 located at the top, which can position the pressure seat 109 to move up and down, and improve the stability of the roller support 106 driving the pressure seat 109 to move up and down through the U-shaped iron 110.

[0058] Secondly, the drive seat 107 includes a drive block 1072. Both sides of the drive block 1072 away from the bottom plate 203 are integrally formed with pressure plates 1071. The pressure seat 109 includes a connecting plate 1092. The bottom of the two long sides of the connecting plate 1092 is integrally formed with side pressure plates 1091. By making the cross section of the pressure plate 1071 a right trapezoid, and the trapezoidal inclined surface facing the bottom plate 203, and the cross section of the side pressure plate 1091 a right trapezoid, and its trapezoidal inclined surface fitting with the trapezoidal inclined surface of the pressure plate 1071, when the hydraulic push rod 104 controls the roller support 106 to drive the pressure roller 7 to move to the bottom, and the pressure seat 109 moves to the bottom synchronously with the help of the U-shaped iron 110, the two side pressure plates 1091 on the pressure seat 109 apply pressure to the two pressure plates 1071 on the drive seat 107, causing the pressure plates 1071 to drive 1702 to move towards the blank.

[0059] Furthermore, since the drive block 1072 has an internal threaded connection to the end facing the base plate 203, and a limit post 112 is integrally formed in the middle of the adjustment screw 111, and a control arm 113 is assembled to the end of the adjustment screw 111 away from the drive seat 107, and a cross groove 12 is opened on the top of the base plate 203, by making the adjustment screw 111 and the limit post 112 movably connected inside the cross groove 12, and by the cooperation of the limit post 112 and the cross groove 12, the movement of the adjustment screw 111 along its axis is restricted. The drive seat 107, the adjustment screw 111, the limit post 112 and the base plate 203 can drive the abutment plate 202, so that the pad plate 201 at the end away from the base plate 203 moves towards the billet, thereby controlling the width of the nickel-based pipeline steel composite plate rolled from the billet.

[0060] Meanwhile, by integrally forming a limiting strip 1093 at the bottom of the pressure seat 109 away from the base plate 203, the limiting strip 1093 is slidably connected between the two pressure plates 1071. This allows the two side pressure plates 1091 on the pressure seat 109 to apply pressure to the two pressure plates 1071 on the drive seat 107, thereby improving the stability of the connection between the side pressure plates 1091 and the pressure plates 1071 when the pressure plates 1071 drive 1702 to move toward the blank.

[0061] Furthermore, by controlling the limit post 112 to rotate inside the cross slot 12 through the control arm 113, adjusting the threaded connection between the adjusting screw 111 and the drive seat 107, and controlling the distance between the base plate 203 and the drive seat 107, the hydraulic push rod 104 can be adjusted to control the roller support 106 to drive the pressure roller 7 to move to the bottom. When the pressure seat 109 moves to the bottom synchronously with the help of the U-shaped iron 110, the two side pressure plates 1091 on the pressure seat 109 apply pressure to the two pressure plates 1071 on the drive seat 107, causing the pressure plates 1071 to drive 1702 to move a distance towards the billet. This is beneficial for making adaptive adjustments according to the width of the rolled billet and the thickness difference of the nickel-based pipeline steel composite plate rolled by the billet, greatly reducing the distance the rolled billet extends along the axis of the support roller 13, and reducing the impact of the deformation difference between the nickel-based alloy and the steel on the plate rolling.

[0062] The above design uses a pressure seat 109 and a drive seat 107 between the base plate 203 and the cross plate 101, and connects the pressure seat 109 and the roller support 106 using a U-shaped iron 110. When the hydraulic push rod 104 controls the roller support 106 to drive the pressure roller 7 to move to the bottom, the U-shaped iron 110 simultaneously drives the pressure seat 109 to move to the bottom. The two side pressure plates 1091 on the pressure seat 109 apply pressure to the two pressure plates 1071 on the drive seat 107, causing the pressure plates 1071 to move 1702 a certain distance towards the blank, thereby using the drive seat... 107. The adjusting screw 111, the limiting post 112, and the base plate 203 drive the abutment plate 202, causing the pad 201 at the end away from the base plate 203 to move towards the billet. Finally, the distance that the rolled billet extends along the axis of the support roller 13 is limited by the two pads 201 that are close to each other between the pressure roller 7 and the support roller 13. The position of the pad 201 is stable. When the distance between the pressure roller 7 and the support roller 13 remains unchanged, there will be no situation where the pad 201 is squeezed by the rolled billet and moves between the pressure roller 7 and the support roller 13.

[0063] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A rolling apparatus for nickel-based pipeline steel composite plates, characterized in that, include: There are two support rollers (13) that are parallel to each other in the same horizontal plane; A pressure roller (7) is positioned on top of a support roller (13) and is parallel to the support roller (13); A rolling support assembly (2) is provided between both ends of the pressure roller (7) and the two support rollers (13), and a rolling limiting assembly (1) is provided at both ends of the pressure roller (7) and the two support rollers (13). The rolling support assembly (2) includes a backing plate (202). A support base (204) is integrally formed at the bottom of one end of the backing plate (202), and a storage groove (10) is formed between the top of one end of the backing plate (202) and the top of the support base (204). A pad plate (201) is provided on the inner side of the storage groove (10). Both ends of the two support rollers (13) are provided with rolling limit components (1), and the bottom of the two rolling limit components (1) is provided with a rolling device base (3). A motor (6) is assembled and connected to the top of one end of the rolling device base (3). The motor (6) is connected to the drive gear (4) through the reduction gearbox (5). The outer side of the two support rollers (13) near the motor (6) is connected to the driven gear (8) by a pin. The bottom of the two driven gears (8) is connected to the intermediate gear (9) by meshing. Two storage slots (11) are provided at the center of the top of the mounting base (204). Springs (206) are provided inside the two storage slots (11). A positioning threaded rod (208) that is threaded to the mounting base (204) is provided on the inner side of the spring (206). A disc (207) is integrally formed in the middle of the positioning threaded rod (208). The spring (206) is supported between the bottom surface of the disc (207) and the bottom inner wall of the storage slot (11). The pad (201) is adapted to be connected to the outside of the two positioning threaded rods (208) and cooperates with the side wall of the storage slot (10) to restrict the movement of the pad (201) in the horizontal plane. The rolling limiting component (1) supports the rolling support component (2) between the pressure roller (7) and the support roller (13), and restricts the abutment plate (202) from moving from the center position between the pressure roller (7) and the support roller (13) to both ends.

2. The nickel-based pipeline steel composite plate rolling device as described in claim 1, characterized in that: Both of the rolling limiting assemblies (1) include a roller frame seat (103). The top of both ends of the two roller frame seats (103) are assembled with vertical plates (102). The top of the two vertical plates (102) located at the same roller frame seat (103) is assembled with a horizontal plate (101). The top of the horizontal plate (101) is assembled with a hydraulic push rod (104). The movable end of the hydraulic push rod (104) passes through the interior of the horizontal plate (101) and is assembled with a roller support (106). The two ends of the two support rollers (13) are respectively mounted inside the two roller brackets (103), and the two ends of the pressure roller (7) are respectively mounted inside the two roller supports (106).

3. The nickel-based pipeline steel composite plate rolling device as described in claim 2, characterized in that: Four limiting crossbars (205) are assembled between the two upright plates (102), and the four limiting crossbars (205) are arranged in a rectangle; The abutment plate (202) is movably connected between the four limiting crossbars (205), the mounting base (204) is adapted to be connected to the top of the two support rollers (13), and the two support rollers (13) are rotatably connected to the bottom of the mounting base (204).

4. The nickel-based pipeline steel composite plate rolling device as described in claim 2, characterized in that: The top of both sides of the roller support (106) is fitted with two first limiting rods (105). The two first limiting rods (105) are located on both sides of the hydraulic push rod (104) and are slidably connected inside the first limiting rods (105).

5. The nickel-based pipeline steel composite plate rolling device as described in claim 1, characterized in that: The bottom plate (203) is welded to the top of the abutment plate (202) away from the support base (204). A drive seat (107) is provided on the side of the bottom plate (203) facing the support base (204). A pressure seat (109) is movably connected to the top of the drive seat (107). A U-shaped iron (110) is assembled between one side of the pressure seat (109) and the surface of the roller support (106). A second limiting rod (108) is assembled to the top of the pressure seat (109). The second limiting upright (108) is slidably connected inside the horizontal plate (101), and the drive seat (107) is slidably connected to the top surface of the two limiting horizontal bars (205) located at the top.

6. The nickel-based pipeline steel composite plate rolling apparatus as described in claim 5, characterized in that: The drive base (107) includes a drive block (1072), and both sides of the drive block (1072) away from the base plate (203) are integrally formed with pressure plates (1071). The cross-section of the pressure plate (1071) is a right trapezoid, and the inclined surface of the trapezoid faces the side of the bottom plate (203).

7. The nickel-based pipeline steel composite plate rolling apparatus as described in claim 6, characterized in that: The drive block (1072) is internally threaded with an adjusting screw (111) at one end facing the base plate (203). A limit post (112) is integrally formed in the middle of the adjusting screw (111). A control arm (113) is assembled and connected to the end of the adjusting screw (111) away from the drive seat (107). A cross groove (12) is opened on the top of the base plate (203). The adjusting screw (111) and the limiting post (112) are both movably connected inside the cross slot (12), and the limiting post (112) and the cross slot (12) cooperate to restrict the movement of the adjusting screw (111) along its axis.

8. The nickel-based pipeline steel composite plate rolling apparatus as described in claim 6, characterized in that: The pressure seat (109) includes a connecting plate (1092), and a side pressure plate (1091) is integrally formed at the bottom of the two long sides of the connecting plate (1092). The side pressure plate (1091) has a right-angled trapezoidal cross section, and its trapezoidal inclined surface is in contact with the trapezoidal inclined surface of the pressure plate (1071).

9. The nickel-based pipeline steel composite plate rolling apparatus as described in claim 8, characterized in that: The bottom of the pressure seat (109) away from the base plate (203) is integrally formed with a limiting strip (1093), and the limiting strip (1093) is slidably connected between the two pressure plates (1071).

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