Straightening devices for steel structures

Abstract

The utility model discloses a correction device for steel structure, comprising an upper pressure roller group and a lower pressure roller located below the upper pressure roller group, the upper pressure roller group comprising a guide roller and an adjusting roller, the guide roller corresponds to the upper end surface of the steel structure through a lower pressure piece, the adjusting roller corresponds to the upper end surface of the steel structure through an adjusting piece, and the lower pressure roller is installed on a bracket and corresponds to the lower end surface of the steel structure; the correction device provided by the utility model adopts staggered guide rollers and adjusting rollers to repeatedly bend the steel structure to eliminate residual stress, the pressing amount of the guide rollers and the adjusting rollers can be adjusted respectively, the bending deformation of the steel structure plate can be adjusted so that the deformation can be corrected eventually, a plurality of working rollers are configured to continuously and repeatedly bend the workpiece to gradually reduce the difference in residual curvature, mechanical straightening is easy to achieve, and the forming quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure processing, and more specifically to a correction device for steel structures. Background Art

[0002] Steel structures are increasingly used in modern industries such as metallurgy, roads and bridges, shipbuilding, construction engineering, and mechanical engineering. These steel structures are often welded from plates, profiles, and plate units. Welding is usually done by local heating at the weld, so that the welding materials and flux melt into liquid metal at high temperature, and then cool and solidify into a whole. During the welding process, the materials outside the weld expand and cool down. Due to the rapid expansion and contraction effect in the local area and the unevenness of the thermal contraction, plastic deformation will remain after the welding material cools to room temperature, causing deformation of the weld and welding residual stress. If these deformations cannot be corrected in a timely and effective manner, it will inevitably affect the flatness accuracy of the product, the overall steel structure assembly accuracy, and the quality of delivery. Therefore, in order to ensure the safety and reliability of the product, it is increasingly important to effectively correct it after deformation. Utility Model Content

[0003] To this end, the technical problem to be solved by the utility model is to provide a correction device for steel structures, which uses staggered guide rollers and adjusting rollers to repeatedly bend the steel structure to eliminate residual stress. The pressing amount of the guide rollers and the adjusting rollers can be adjusted separately to adjust the bending deformation of the steel structure plate so that the deformation can be corrected in the end. Multiple working rollers are configured to continuously and repeatedly bend the workpiece to gradually reduce the difference in residual curvature. Mechanical straightening is easy to achieve and the forming quality is high.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A correction device for a steel structure comprises an upper pressure roller group and a lower pressure roller located below the upper pressure roller group, wherein the upper pressure roller group comprises a guide roller and an adjusting roller, wherein the guide roller corresponds to the upper end surface of the steel structure through a lower pressure piece, wherein the adjusting roller corresponds to the upper end surface of the steel structure through an adjusting piece, and wherein the lower pressure roller is mounted on a bracket and corresponds to the lower end surface of the steel structure.

[0006] Furthermore, along the conveying direction of the steel structure, the guide rollers are arranged at the inlet end and the outlet end, the adjusting rollers are arranged between the inlet end and the outlet end, the upper pressure roller group is evenly arranged on the upper end surface of the steel structure, and the lower pressure rollers are evenly arranged on the lower end surface of the steel structure.

[0007] Furthermore, the pressing member includes a guide frame and a pressing frame installed inside the guide frame and displaced along the height direction of the guide frame. The bottom of the pressing frame is connected to a guide roller, and the guide roller is rotatably connected relative to the pressing frame through an axle seat.

[0008] Furthermore, a prevention component is also provided on the guide frame, and the prevention component includes a connecting rod connecting the two outer side walls of the guide frame, a guide rod arranged toward the upper end surface of the steel structure is connected in the middle of the connecting rod, a connecting rod is connected to one side of the pressure frame, an L-rod is connected to the end of the connecting rod away from the pressure frame, the long rod end of the L-rod is connected to the connecting rod, the short rod end of the L-rod is connected to a blocking rod, and the joint of the L-rod is connected to the bottom end of the guide rod.

[0009] Furthermore, the adjustment member includes a fixed frame and an L-shaped support movably connected to the fixed frame, a tilting seat is provided on one side of the fixed frame, and a clearance groove 1 is provided on the tilting seat and is arranged through the side wall of the tilting seat, the support is connected to the clearance groove 1 through a positioning rod on the side facing the tilting seat, the positioning rod is displaced in the clearance groove 1, and a clearance groove 2 is provided on the side wall of the support having the positioning rod and is arranged through the side wall of the support.

[0010] Furthermore, the support is movably connected to a movable plate on the other side away from the tilting seat, and the bottom of the movable plate close to the tilting seat is connected to a guide groove through a support rod, a screw rod is provided in the guide groove, and the end of the support rod close to the screw rod is connected to the screw rod through the guide seat, and the end of the support rod close to the movable plate is movably connected to the bottom of the movable plate.

[0011] Furthermore, a support seat is provided on the upper end surface of the movable plate, a support rod is connected to the support seat, the support rod passes through the second clearance groove and is connected to a roller frame carrying the guide roller, and the support rod is displaced correspondingly in the second clearance groove.

[0012] The technical solution of the utility model has achieved the following beneficial technical effects:

[0013] 1. The utility model is a correction device for steel structures. Staggered guide rollers and adjusting rollers are used to repeatedly bend the steel structure to eliminate residual stress. The pressing amount of the guide rollers and adjusting rollers can be adjusted respectively to adjust the bending deformation of the steel structure plate so that the deformation can be corrected in the end. Multiple working rollers are configured to continuously and repeatedly bend the workpiece to gradually reduce the difference in residual curvature. Mechanical leveling is easy to achieve and the forming quality is high.

[0014] 2. The utility model is used for the correction device of steel structure. The downward pressure of the guide roller can be adjusted through the downward pressure piece. While realizing the smooth bite of the steel structure plate, the downward pressure of the guide roller is adjusted to achieve the pressure required for leveling.

[0015] 3. The utility model is used for a correction device for steel structures. The downward pressure of the adjusting roller relative to the end face of the steel structure can be adjusted by the guiding displacement of the support rod in the first clearance groove. The downward pressure of the adjusting roller at the inlet end and the outlet end can be changed by adjusting the guiding inclination of the support in the second clearance groove, so as to change the deflection of the adjusting roller, eliminate unilateral or bilateral wave deformation, and realize repeated bending and leveling of the entire steel structure plate surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model for a correction device for a steel structure;

[0017] Figure 2 It is a schematic diagram of a lower pressing member of a correction device for a steel structure of the utility model;

[0018] Figure 3 The utility model is a schematic diagram of an adjusting member of a correction device for a steel structure.

[0019] The reference numerals in the figure are as follows: 1. upper pressure roller group; 101. guide roller; 102. adjustment roller; 2. lower pressure roller; 3. bracket; 4. guide frame; 5. pressure frame; 6. connecting rod; 7. guide rod; 8. connecting rod; 9. L rod; 10. stop rod; 11. fixed frame; 12. support; 13. tilting seat; 14. make way slot one; 15. positioning rod; 16. make way slot two; 17. movable plate; 18. guide slot; 19. screw rod; 20. support rod; 21. guide seat; 22. support seat; 23. support rod; 24. roller frame. DETAILED DESCRIPTION

[0020] The fixed connection described in this device refers to fixation by welding, threaded fixation, etc., and different fixing methods are used in combination with different usage environments. The rotating connection refers to the axial fixation of the bearing by baking it on the shaft and realizing rotation through an elastic retaining ring. The sliding connection refers to the connection through the sliding of the slider in the slide groove. The hinged connection refers to the movable connection through a pin shaft and a short shaft. The required sealing is achieved by a sealing ring or an O-ring. Example

[0021] This embodiment is used for the correction device of steel structure, such as Figure 1As shown, it includes an upper pressure roller group 1 and a lower pressure roller 2 located below the upper pressure roller group 1. The steel structure plate surface passes through the staggered upper pressure roller group 1 and the lower pressure roller 2 in sequence under the action of friction force, and the continuous repeated bending of the steel structure is used to achieve the purpose of correcting deformation. Specifically, the upper pressure roller group 1 includes a guide roller 101 and an adjusting roller 102. A plurality of adjusting rollers 102 can be provided according to the size of the steel structure to be corrected. In order to improve the strength and rigidity of the pressure rollers, the guide roller 101 and the adjusting roller 102 are both support rollers. Along the conveying direction of the steel structure, the guide roller 101 is respectively provided at the inlet end and the outlet end. The guide roller 101 corresponds to the upper end surface of the steel structure through a lower pressure piece. The pressure of the lower pressure roller 2 on the bottom end of the steel structure is zero. The adjusting roller 102 is arranged between the inlet end and the outlet end, the adjusting roller 102 corresponds to the upper end surface of the steel structure through the adjusting member, the lower pressing roller 2 is mounted on the bracket 3 and corresponds to the lower end surface of the steel structure, the upper pressing roller group 1 is evenly arranged on the upper end surface of the steel structure, and the lower pressing roller 2 is evenly arranged on the lower end surface of the steel structure. A plurality of staggered working rollers are used to achieve repeated bending of the steel structure plate, and the steel structure plate is flattened while eliminating the original uneven curvature. The pressing amount of the guide roller and the adjusting roller can be adjusted separately to achieve the pressure required for flattening. The appropriate pressing amount is used to adjust the bending deformation of the steel structure plate under the working roller to obtain a suitable pressing bending rate so that the deformation can be corrected in the end.

[0022] Specific, combined Figure 2 The pressing member includes a guide frame 4 and a pressing frame 5 installed inside the guide frame 4 and displaced along the height direction of the guide frame 4. The guide frame 4 is vertically arranged relative to the steel structure plate surface. The bottom of the pressing frame 5 is connected to a guide roller 101, and the guide roller 101 is rotatably connected relative to the pressing frame 5 through an axle seat. Under the action of a hydraulic cylinder or a pneumatic cylinder, the top of the pressing frame 5 approaches and abuts against the upper end surface of the steel structure along the guide frame 4. According to the deformation degree of the steel structure, the downward pressure of the guide roller 101 is adjusted while the steel structure plate is smoothly bitten into, so as to achieve the pressure required for leveling.

[0023] The guide frame 4 is also provided with a prevention component, which includes a connecting rod 6 connecting the two outer side walls of the guide frame 4, a guide rod 7 arranged toward the upper end face of the steel structure is connected in the middle of the connecting rod 6, a connecting rod 8 is connected to one side of the pressure frame 5, and the end of the connecting rod 8 away from the pressure frame 5 is hingedly connected to an L rod 9, the long rod end of the L rod 9 is connected to the connecting rod 8, and the short rod end of the L rod 9 is connected to a blocking rod 10, and the joint of the L rod 9 is connected to the bottom end of the guide rod 7. When the pressure frame 5 moves downward, the connecting rod 8 drives the connecting rod 8 to move downward accordingly. Under the connection limit of the L rod 9 and the guide rod 7, the connecting rod 8 converts the linear displacement into a rotational movement around the connection of the guide rod 7, so that the direction and angle of the short rod end of the L rod 9 change, thereby changing the distance of the blocking rod 10 relative to the upper end face of the steel structure. According to the requirements of the correction pressure and correction thickness of the steel structure, when the pressure frame 5 moves downward excessively, the bottom end of the blocking rod 10 can abut against the end face of the steel structure to prevent the pressure frame 5 from moving downward excessively and avoid excessive deformation damage to the steel structure. Example

[0024] This embodiment is used for the correction device of steel structure, such as Figure 1 As shown, it includes an upper pressing roller group 1 and a lower pressing roller 2 located below the upper pressing roller group 1. The steel structure plate surface passes through the staggered upper pressing roller group 1 and the lower pressing roller 2 in sequence under the action of friction force, and the purpose of correcting deformation is achieved by using the continuous repeated bending of the steel structure. Specifically, the upper pressing roller group 1 includes a guide roller 101 and an adjusting roller 102. Along the conveying direction of the steel structure, the guide roller 101 is respectively provided at the inlet end and the outlet end. The guide roller 101 corresponds to the upper end surface of the steel structure through a lower pressing piece. The pressure of the lower pressing roller 2 on the bottom end of the steel structure is zero. The adjusting roller 102 is provided between the inlet end and the outlet end. The adjusting roller 102 is adjusted The upper pressing roller 2 is mounted on the bracket 3 and corresponds to the lower end surface of the steel structure. The upper pressing roller group 1 is evenly arranged on the upper end surface of the steel structure, and the lower pressing roller 2 is evenly arranged on the lower end surface of the steel structure. A plurality of staggered working rollers are used to achieve repeated bending of the steel structure plate, and the steel structure plate is leveled while eliminating the original uneven curvature. The pressing amount of the guide roller and the regulating roller can be adjusted separately to achieve the pressure required for leveling. The appropriate pressing amount is used to adjust the bending deformation of the steel structure plate under the working roller to obtain a suitable pressing bending rate so that the deformation can be corrected in the end.

[0025] Specific, combined Figure 3The adjusting member includes a fixing frame 11 and an L-shaped support 12 movably connected to the fixing frame 11. One side wall of the support 12 is movably connected to the fixing frame 11, so that the position of the support 12 relative to the fixing frame 11 changes. A tilting seat 13 is provided on one side of the fixing frame 11. The tilting seat 13 is provided with a clearance groove 14 that penetrates the side wall of the tilting seat 13. The side of the support 12 facing the tilting seat 13 is connected to the clearance groove 14 through a positioning rod 15. The positioning rod 15 is positioned in the clearance groove 14. The groove shape of the give way groove 14 can make the adjusting roller 102 vertically pressed down or moved up relative to the end face of the steel structure. The support 12 has a side wall with a positioning rod 15, and a give way groove 14 is provided on the side wall of the support 12. The groove shape of the give way groove 14 can change the pressing angle of the roller surface of the adjusting roller 102 relative to the end face of the steel structure. The positioning rod 15 is driven by an external force to move in a directional manner along the give way groove 14, driving the support 12 as a whole to move synchronously, thereby changing the inclination angle of the adjusting roller 102.

[0026] The support 12 is movably connected to a movable plate 17 on the other side away from the tilting seat 13. The bottom of the movable plate 17 close to the tilting seat 13 is connected to a guide groove 18 through a support rod 20. A screw rod 19 is provided in the guide groove 18. The end of the support rod 20 close to the screw rod 19 is connected to the screw rod 19 through a guide seat 21. The end of the support rod 20 close to the movable plate 17 is movably connected to the bottom of the movable plate 17. The screw rod 19 rotates under the drive of the motor so that the guide seat 21 moves linearly along the screw rod 19, thereby changing the position and angle of the support rod 20. One end of the movable plate 17 rotates around the connecting end under the connection limit between it and the support 12 and the thrust of the support rod 20, thereby lifting the movable plate 17.

[0027] exist Figure 3 In the figure, a support seat 22 is provided on the upper end surface of the movable plate 17, and a support rod 23 is connected to the support seat 22. The support rod 23 passes through the second clearance groove 16 and is connected to a roller frame 24 that carries the guide roller 101. The support rod 23 is displaced correspondingly in the second clearance groove 16. The support rod 23 moves synchronously with the lifting action of the movable plate 17. At the same time, the support rod 23 moves in a predetermined direction under the guiding action of the second clearance groove 16, thereby changing the downward pressure of the adjusting roller 102 on the roller frame 24 relative to the end face of the steel structure.

[0028] The downward pressure of the adjusting roller 102 relative to the end face of the steel structure can be adjusted by the guiding displacement of the support rod 23 in the second clearance groove 16, and the pressing amount of the roller surface of the adjusting roller 102 at the inlet end and the outlet end can be changed by adjusting the guiding inclination of the support in the second clearance groove 16. Along the conveying direction of the steel structure, the pressing amount of the roller surface of the inlet and outlet of a single adjusting roller 102 can be adjusted separately, and can also be adjusted during the leveling process, so as to adjust the pressing amount of each adjusting roller 102 separately, so that the pressing amount of each adjusting roller 102 adopts a controllable linear change to change the deflection of the leveling working roller, eliminate single-sided or double-sided wave deformation, and realize repeated bending and leveling of the entire steel structure plate surface.

[0029] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the claims of this patent application.

Claims

1. A correction device for a steel structure, characterized in that: The invention comprises an upper pressing roller group (1) and a lower pressing roller (2) located below the upper pressing roller group (1), wherein the upper pressing roller group (1) comprises a guide roller (101) and an adjusting roller (102), wherein the guide roller (101) corresponds to the upper end surface of the steel structure via a lower pressing member, and the adjusting roller (102) corresponds to the upper end surface of the steel structure via an adjusting member, and the lower pressing roller (2) is mounted on a bracket (3) and corresponds to the lower end surface of the steel structure; Along the conveying direction of the steel structure, the guide rollers (101) are respectively arranged at the inlet end and the outlet end, the adjusting roller (102) is arranged between the inlet end and the outlet end, the upper pressure roller group (1) is evenly arranged on the upper end surface of the steel structure, and the lower pressure roller (2) is evenly arranged on the lower end surface of the steel structure; The pressing member comprises a guide frame (4) and a pressing frame (5) installed inside the guide frame (4) and displaced along the height direction of the guide frame (4); the bottom of the pressing frame (5) is connected to a guide roller (101); and the guide roller (101) is rotatably connected relative to the pressing frame (5) via an axle seat.

2. The correction device for steel structure according to claim 1, characterized in that: The guide frame (4) is also provided with a prevention component, which includes a connecting rod (6) connecting the two outer side walls of the guide frame (4), a guide rod (7) arranged toward the upper end surface of the steel structure is connected to the middle of the connecting rod (6), a connecting rod (8) is connected to one side of the pressure frame (5), an end of the connecting rod (8) away from the pressure frame (5) is connected to an L rod (9), the long rod end of the L rod (9) is connected to the connecting rod (8), the short rod end of the L rod (9) is connected to a blocking rod (10), and the joint of the L rod (9) is connected to the bottom end of the guide rod (7).

3. The correction device for steel structure according to claim 1, characterized in that: The adjusting member comprises a fixed frame (11) and an L-shaped support (12) movably connected to the fixed frame (11); a tilting seat (13) is provided on one side of the fixed frame (11); a first clearance groove (14) is provided on the tilting seat (13) and is arranged through a side wall of the tilting seat (13); a side of the support (12) facing the tilting seat (13) is connected to the first clearance groove (14) via a positioning rod (15); the positioning rod (15) is displaced in the first clearance groove (14); and a second clearance groove (16) is provided on the side wall of the support (12) having the positioning rod (15) and is arranged through the side wall of the support (12).

4. The correction device for steel structure according to claim 3, characterized in that: A movable plate (17) is movably connected to the other side of the support (12) away from the tilting seat (13); the bottom of one end of the movable plate (17) close to the tilting seat (13) is connected to a guide groove (18) through a support rod (20); a screw rod (19) is arranged in the guide groove (18); one end of the support rod (20) close to the screw rod (19) is connected to the screw rod (19) through a guide seat (21); and one end of the support rod (20) close to the movable plate (17) is movably connected to the bottom of the movable plate (17).

5. The correction device for steel structure according to claim 4, characterized in that: A support seat (22) is provided on the upper end surface of the movable plate (17), and a support rod (23) is connected to the support seat (22). The support rod (23) passes through the second clearance groove (16) and is connected to a roller frame (24) that carries the guide roller (101). The support rod (23) is displaced correspondingly in the second clearance groove (16).

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