Adjustable steel plate flatness lossless correction device

Abstract

The utility model relates to the technical field of condensers, in particular to an adjustable steel plate flatness lossless correcting device which comprises a portal frame, a control panel is arranged on one side of the top end of the portal frame, U-shaped clamping plates are arranged at the four corners of the top end of the bottom of the portal frame, and a jack is arranged at the bottom of the top end of the portal frame. An infrared calibrator is arranged on one side of the top end of the bottom of the portal frame, and a baffle is arranged on the other side of the top end of the bottom of the portal frame. During correction, a condenser steel plate is placed on the portal frame, the U-shaped clamping plate is used for limiting the steel plate, infrared rays emitted by the infrared calibrator are projected to the baffle, the flatness of the steel plate is calibrated through the infrared rays, the control panel is used for controlling the jack to stretch, and the jack is stretched to adjust the height of the leveling pressing plate. And the leveling pressing plate is pressed downwards to press and level the deformation position of the steel plate joint, correction operation is synchronously carried out in an integrated leveling mode, one-time correction succeeds, and the operation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of condenser technology, and in particular to an adjustable non-destructive straightening device for steel plate flatness. Background Technology

[0002] The condenser is an important component of the condensing steam turbine in a thermal power plant. As an important auxiliary machine in the power plant, its working condition directly affects the thermal economy and operational reliability of the entire unit. The condenser diaphragm is large in size and is manufactured by first splicing the plates and then drilling holes. During the manufacturing process, the diaphragm is cut into two halves. After the external dimensions are inspected and approved, the two halves of steel plates are welded together and the weld seam is ground to be flush with the base material. The whole is then leveled.

[0003] Due to their large size, modern condenser diaphragms are prone to deformation or uneven stress release at the welding points during transportation and hoisting. Deformation can cause deviations in the center hole distance of the diaphragm, making it impossible to perform pipe threading operations normally. Therefore, the steel plates need to be leveled and straightened. Traditional straightening operations involve locally heating the deformed area until the material reaches a plastic state, and then applying external force for straightening. However, the straightening accuracy is difficult to guarantee, and repeated adjustments are often required. This may cause secondary impacts on the flatness of the steel plate, affecting the straightening effect.

[0004] Therefore, in view of the fact that the existing condenser steel plate straightening operation can only be carried out in localized and multiple times, which affects the straightening effect, an adjustable non-destructive straightening device for steel plate flatness can be designed. Through an integrated leveling method, the straightening position of the device can be flexibly adjusted according to the actual size of the steel plate, and the straightening operation can be carried out simultaneously, achieving a successful straightening in one go, improving work efficiency, and thus effectively enhancing the practical value of the device. Utility Model Content

[0005] To overcome the problem that most traditional straightening operations involve localized straightening of deformed areas, which makes it difficult to guarantee the straightening accuracy and often requires repeated adjustments, potentially causing secondary impacts on the flatness of the steel plate and affecting the straightening effect, this utility model is proposed.

[0006] The technical solution of this utility model is as follows: an adjustable non-destructive straightening device for steel plate flatness, comprising a gantry frame, a control panel, a U-shaped clamp, a jack, a leveling pressure plate, an infrared calibrator, and a baffle. The control panel is provided on one side of the top of the gantry frame, the U-shaped clamp is provided at the four corners of the top of the bottom of the gantry frame, the jack is provided at the bottom of the top of the gantry frame, the leveling pressure plate is provided at the outer telescopic end of the jack, the infrared calibrator is provided on one side of the top of the bottom of the gantry frame, and the baffle is provided on the other side of the top of the bottom of the gantry frame.

[0007] Preferably, the condenser steel plate is placed on a gantry frame, and a U-shaped clamp is used to limit the steel plate to ensure stable placement. Infrared light emitted by an infrared calibrator is projected onto a baffle to calibrate the flatness of the steel plate. The control panel controls the extension and retraction of jacks, which adjust the height of the leveling plate. The lowering of the leveling plate presses down to tighten and level the deformed joints of the steel plate. This allows for flexible adjustment of the device's correction position according to the actual size of the steel plate, enabling simultaneous correction operations and successful correction in one go. This improves work efficiency and enhances the practical value of the device.

[0008] Preferably, multiple sets of jacks are arranged at equal intervals. The cylinder drive mechanism of the jack is electrically connected to the control panel. The baffle and the infrared calibrator are symmetrically positioned. An extension rod is provided on the outer telescopic end of the jack. The leveling pressure plate is fixedly connected to the bottom end of the extension rod.

[0009] Preferably, two sets of support frames are symmetrically arranged on both sides of the gantry frame, and the thickness of the support frames is the same as the thickness of the bottom of the gantry frame.

[0010] Preferably, multiple sets of electric telescopic rods are symmetrically arranged at the four inner corners of the bottom of the gantry frame. The electric telescopic rods are electrically connected to the control panel, and U-shaped clamps are set at the outer telescopic ends of the electric telescopic rods.

[0011] Preferably, a first adjusting screw is provided through the top of the U-shaped clamp, the first adjusting screw is threadedly connected to the U-shaped clamp, and a positioning pressure plate is provided at the bottom of the first adjusting screw.

[0012] Preferably, a fixed base is provided on one side of the bottom top of the gantry frame, the infrared calibrator is located inside the fixed base, an adjustment base is provided at the rear end of the infrared calibrator, and a sliding frame is provided on the outer side of the adjustment base, with the sliding frame slidably connected to the adjustment base.

[0013] Preferably, a second adjusting screw is provided through the top of the fixed seat, the second adjusting screw is rotatably connected to the fixed seat, the adjusting seat is rotatably connected to the bottom of the second adjusting screw, a through groove is provided at the rear end of the sliding frame, an arrow is provided on one side of the through groove, and a scale line is provided at the rear end of the fixed seat.

[0014] The beneficial effects of this utility model are:

[0015] During the straightening operation, the condenser steel plate is placed on the gantry frame, and U-shaped clamps are used to limit the steel plate and ensure its stable placement. Infrared light emitted by an infrared calibrator is projected onto a baffle to calibrate the flatness of the steel plate. The control panel is used to control the extension of the jacks, and the extension of the jacks adjusts the height of the leveling plate. The lowering of the leveling plate presses down to tighten and level the deformed position of the steel plate joint. This solves the problem that the flatness straightening accuracy of most steel plate straightening operations is difficult to guarantee, often requiring repeated adjustments, which may lead to secondary impacts on the flatness of the steel plate. This enhances the practical value of the device. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of an adjustable steel plate flatness non-destructive correction device according to this utility model.

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the extended rod of an adjustable steel plate flatness non-destructive straightening device according to this utility model.

[0018] Figure 3 The diagram shown is a three-dimensional cross-sectional view of the gantry frame of an adjustable steel plate flatness non-destructive straightening device according to this utility model.

[0019] Figure 4 The diagram shown is a first three-dimensional structural schematic of an infrared calibrator for an adjustable steel plate flatness non-destructive correction device according to this utility model.

[0020] Figure 5 The diagram shown is a second three-dimensional structural schematic of an infrared calibrator for an adjustable steel plate flatness non-destructive correction device according to this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Gantry frame; 101. Support frame; 2. Control panel; 3. U-shaped clamp; 301. Electric telescopic rod; 302. First adjusting screw; 303. Positioning pressure plate; 4. Jack; 401. Extension rod; 5. Leveling pressure plate; 6. Infrared calibrator; 601. Fixed base; 602. Adjusting base; 603. Sliding frame; 604. Second adjusting screw; 605. Through groove; 606. Arrow; 607. Scale line; 7. Baffle. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Example 1

[0024] Please see Figure 1This utility model provides an embodiment: an adjustable non-destructive straightening device for steel plate flatness, including a gantry frame 1, a control panel 2, a U-shaped clamp 3, jacks 4, a leveling pressure plate 5, an infrared calibrator 6, and a baffle 7. The control panel 2 is provided on one side of the top of the gantry frame 1, and the U-shaped clamps 3 are provided at the four corners of the top of the bottom of the gantry frame 1. Jacks 4 are provided at the bottom of the top of the gantry frame 1, and multiple sets of jacks 4 are arranged at equal intervals. The cylinder drive mechanism of the jacks 4 is electrically connected to the control panel 2. The leveling pressure plate 5 is provided at the outer telescopic end of the jacks 4. The infrared calibrator 6 is provided on one side of the top of the bottom of the gantry frame 1, and the baffle 7 is provided on the other side of the top of the bottom of the gantry frame 1. The baffle 7 and the infrared calibrator 6 are symmetrically positioned.

[0025] Please see Figure 1 In this embodiment, two sets of support frames 101 are symmetrically arranged on both sides of the gantry frame 1. The thickness of the support frame 101 is the same as the bottom thickness of the gantry frame 1. The steel plate is placed on the support frame 101 to ensure that the steel plate is placed flat on the gantry frame 1.

[0026] During the correction, the condenser steel plate is placed on the support frame 101, so that the deformed position is placed on the gantry frame 1. The U-shaped clamp 3 is used to limit the steel plate. The infrared light emitted by the infrared calibrator 6 is projected onto the baffle 7, so that the infrared light calibrates the flatness of the steel plate.

[0027] Subsequently, the deformed area of ​​the steel plate joint is heated, and then the control panel 2 is used to control the extension of the jack 4. The extension of the jack 4 adjusts the height of the leveling plate 5, and the lowering of the leveling plate 5 presses and levels the deformed area of ​​the steel plate joint.

[0028] Example 2

[0029] Please see Figure 1 This utility model provides an embodiment: an adjustable non-destructive straightening device for steel plate flatness, including a gantry frame 1, a control panel 2, a U-shaped clamp 3, jacks 4, a leveling pressure plate 5, an infrared calibrator 6, and a baffle 7. The control panel 2 is provided on one side of the top of the gantry frame 1, and the U-shaped clamps 3 are provided at the four corners of the top of the bottom of the gantry frame 1. Jacks 4 are provided at the bottom of the top of the gantry frame 1, and multiple sets of jacks 4 are arranged at equal intervals. The cylinder drive mechanism of the jacks 4 is electrically connected to the control panel 2. The leveling pressure plate 5 is provided at the outer telescopic end of the jacks 4. The infrared calibrator 6 is provided on one side of the top of the bottom of the gantry frame 1, and the baffle 7 is provided on the other side of the top of the bottom of the gantry frame 1. The baffle 7 and the infrared calibrator 6 are symmetrically positioned.

[0030] Please see Figure 1 and Figure 2In this embodiment, an extension rod 401 is provided on the outer telescopic end of the jack 4. The leveling plate 5 is fixedly connected to the bottom end of the extension rod 401. The length of the jack 4 is increased by the extension rod 401, which facilitates leveling treatment for cases with large deformation. Two sets of support frames 101 are symmetrically arranged on both sides of the gantry frame 1. The thickness of the support frame 101 is the same as the bottom thickness of the gantry frame 1. The steel plate is placed on the support frame 101 to ensure that the steel plate is placed flat on the gantry frame 1.

[0031] During the correction, the condenser steel plate is placed on the support frame 101, so that the deformed position is placed on the gantry frame 1. The U-shaped clamp 3 is used to limit the steel plate. The infrared light emitted by the infrared calibrator 6 is projected onto the baffle 7, so that the infrared light calibrates the flatness of the steel plate.

[0032] Subsequently, the deformed area of ​​the steel plate joint is heated, and then the control panel 2 is used to control the extension of the jack 4. The extension jack 4 adjusts the height of the leveling plate 5 at one end of the extension rod 401, and the leveling plate 5 is pressed down to press and level the deformed area of ​​the steel plate joint. This embodiment is suitable for processing steel plates with large flatness deformation.

[0033] Example 3

[0034] Please see Figure 1 This utility model provides an embodiment: an adjustable non-destructive straightening device for steel plate flatness, including a gantry frame 1, a control panel 2, a U-shaped clamp 3, jacks 4, a leveling pressure plate 5, an infrared calibrator 6, and a baffle 7. The control panel 2 is provided on one side of the top of the gantry frame 1, and the U-shaped clamps 3 are provided at the four corners of the top of the bottom of the gantry frame 1. Jacks 4 are provided at the bottom of the top of the gantry frame 1, and multiple sets of jacks 4 are arranged at equal intervals. The cylinder drive mechanism of the jacks 4 is electrically connected to the control panel 2. The leveling pressure plate 5 is provided at the outer telescopic end of the jacks 4. The infrared calibrator 6 is provided on one side of the top of the bottom of the gantry frame 1, and the baffle 7 is provided on the other side of the top of the bottom of the gantry frame 1. The baffle 7 and the infrared calibrator 6 are symmetrically positioned.

[0035] Please see Figure 1 and Figure 3In this embodiment, two sets of support frames 101 are symmetrically arranged on both sides of the gantry frame 1. The thickness of the support frame 101 is the same as the bottom thickness of the gantry frame 1. The steel plate is placed on the support frame 101 to ensure that the steel plate is placed flat on the gantry frame 1. Multiple sets of electric telescopic rods 301 are symmetrically arranged at the four corners of the bottom inner side of the gantry frame 1. The electric telescopic rods 301 are electrically connected to the control panel 2. The U-shaped clamp 3 is arranged at the outer telescopic end of the electric telescopic rod 301. The top of the U-shaped clamp 3 is provided with a first adjusting screw 302. The first adjusting screw 302 is threadedly rotatably connected to the U-shaped clamp 3. The bottom end of the first adjusting screw 302 is provided with a positioning pressure plate 303. The electric telescopic rod 301 is controlled to extend and retract through the control panel 2. The extension and retraction of the electric telescopic rod 301 adjusts the placement position of the U-shaped clamp 3, thereby flexibly clamping both sides of the steel plate according to the actual width of the steel plate. The height of the positioning pressure plate 303 is adjusted by rotating the first adjusting screw 302, thereby pressing and fixing the steel plate according to the actual thickness of the steel plate.

[0036] During the correction, the condenser steel plate is placed on the support frame 101, so that the deformed position is placed on the gantry frame 1. The electric telescopic rod 301 is extended through the control panel 2. The electric telescopic rod 301 is extended synchronously to shorten the distance between the U-shaped clamps 3, so that the U-shaped clamps 3 clamp the steel plate according to the actual width of the steel plate.

[0037] Then, the height of the positioning plate 303 is adjusted by rotating the first adjusting screw 302 in sequence, so that the positioning plate 303 presses and fixes the steel plate according to the actual thickness of the steel plate. In this embodiment, the position can be flexibly fixed according to the actual width and thickness of the steel plate. Then, the infrared light emitted by the infrared calibrator 6 is projected onto the baffle 7 so that the infrared light calibrates the flatness of the steel plate.

[0038] Finally, the deformed area of ​​the steel plate joint is heated. The control panel 2 is used to control the extension of the jack 4. The extension of the jack 4 adjusts the height of the leveling plate 5, and the lowering of the leveling plate 5 presses down to flatten and level the deformed area of ​​the steel plate joint.

[0039] Example 4

[0040] Please see Figure 1 This utility model provides an embodiment: an adjustable non-destructive straightening device for steel plate flatness, including a gantry frame 1, a control panel 2, a U-shaped clamp 3, jacks 4, a leveling pressure plate 5, an infrared calibrator 6, and a baffle 7. The control panel 2 is provided on one side of the top of the gantry frame 1, and the U-shaped clamps 3 are provided at the four corners of the top of the bottom of the gantry frame 1. Jacks 4 are provided at the bottom of the top of the gantry frame 1, and multiple sets of jacks 4 are arranged at equal intervals. The cylinder drive mechanism of the jacks 4 is electrically connected to the control panel 2. The leveling pressure plate 5 is provided at the outer telescopic end of the jacks 4. The infrared calibrator 6 is provided on one side of the top of the bottom of the gantry frame 1, and the baffle 7 is provided on the other side of the top of the bottom of the gantry frame 1. The baffle 7 and the infrared calibrator 6 are symmetrically positioned.

[0041] Please see Figure 1 and Figure 3 In this embodiment, two sets of support frames 101 are symmetrically arranged on both sides of the gantry frame 1. The thickness of the support frame 101 is the same as the bottom thickness of the gantry frame 1. The steel plate is placed on the support frame 101 to ensure that the steel plate is placed flat on the gantry frame 1. Multiple sets of electric telescopic rods 301 are symmetrically arranged at the four corners of the bottom inner side of the gantry frame 1. The electric telescopic rods 301 are electrically connected to the control panel 2. The U-shaped clamp 3 is arranged at the outer telescopic end of the electric telescopic rod 301. The top of the U-shaped clamp 3 is provided with a first adjusting screw 302. The first adjusting screw 302 is threadedly rotatably connected to the U-shaped clamp 3. The bottom end of the first adjusting screw 302 is provided with a positioning pressure plate 303. The electric telescopic rod 301 is controlled to extend and retract through the control panel 2. The extension and retraction of the electric telescopic rod 301 adjusts the placement position of the U-shaped clamp 3, thereby flexibly clamping both sides of the steel plate according to the actual width of the steel plate. The height of the positioning pressure plate 303 is adjusted by rotating the first adjusting screw 302, thereby pressing and fixing the steel plate according to the actual thickness of the steel plate.

[0042] Please see Figure 4 and Figure 5 In this embodiment, a fixed base 601 is provided on one side of the bottom top of the gantry frame 1. The infrared calibrator 6 is located inside the fixed base 601. An adjusting base 602 is provided at the rear end of the infrared calibrator 6. A sliding frame 603 is provided on the outer side of the adjusting base 602. The sliding frame 603 is slidably connected to the adjusting base 602. A second adjusting screw 604 is provided through the top of the fixed base 601. The second adjusting screw 604 is threadedly rotatably connected to the fixed base 601. The adjusting base 602 is rotatably connected to the bottom end of the second adjusting screw 604. A through groove 605 is provided at the rear end of the sliding frame 603. An arrow 606 is provided on one side, and a scale line 607 is provided at the rear end of the fixing base 601. The infrared calibrator 6 is protected by the fixing base 601. The infrared calibrator 6 is fixed by the adjusting base 602. Rotating the second adjusting screw 604 drives the adjusting base 602 to rise and fall, so that the sliding frame 603 slides up and down along the fixing base 601. Sliding the fixing base 601 causes the arrow 606 to move up and down synchronously, so that the arrow 606 points to the scale line 607 displayed in the corresponding through groove 605. The scale line 607 is used to display the thickness of the steel plate, so as to flexibly adjust the calibration height of the infrared calibrator 6 according to the actual thickness of the steel plate.

[0043] During the correction, the condenser steel plate is placed on the support frame 101, so that the deformed position is placed on the gantry frame 1. The electric telescopic rod 301 is extended through the control panel 2. The electric telescopic rod 301 is extended synchronously to shorten the distance between the U-shaped clamps 3, so that the U-shaped clamps 3 clamp the steel plate according to the actual width of the steel plate.

[0044] Then, the height of the positioning plate 303 is adjusted by rotating the first adjusting screw 302 in sequence, so that the positioning plate 303 presses and fixes the steel plate according to the actual thickness of the steel plate. In this embodiment, the position can be flexibly fixed according to the actual width and thickness of the steel plate.

[0045] Then rotate the second adjusting screw 604 to drive the adjusting seat 602 to rise and fall, so that the sliding frame 603 slides up and down along the fixed seat 601. Observe the arrow 606 pointing to the scale line 607 displayed in the through groove 605. Adjust the arrow 606 to the scale line 607 that matches the steel plate thickness value. In this embodiment, the calibration height of the infrared calibrator 6 can be flexibly adjusted according to the actual thickness of the steel plate. The infrared light emitted by the infrared calibrator 6 is projected onto the baffle 7 so that the infrared light calibrates the flatness of the steel plate.

[0046] Finally, the deformed area of ​​the steel plate joint is heated. The control panel 2 is used to control the extension of the jack 4. The extension of the jack 4 adjusts the height of the leveling plate 5, and the lowering of the leveling plate 5 presses down to flatten and level the deformed area of ​​the steel plate joint.

[0047] Through the above steps, the condenser steel plate is placed on the gantry frame 1, and the steel plate is limited by the U-shaped clamp 3 to ensure stable placement. The infrared light emitted by the infrared calibrator 6 is projected onto the baffle 7 to calibrate the flatness of the steel plate. The extension and retraction of the jack 4 is controlled by the control panel 2. The extension and retraction of the jack 4 adjusts the height of the leveling plate 5, and the lowering of the leveling plate 5 presses down to tighten and level the deformed position of the steel plate joint. Thus, the device correction position can be flexibly adjusted according to the actual size of the steel plate, and the correction operation can be carried out simultaneously. The correction is successful in one go, improving the work efficiency.

[0048] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An adjustable non-destructive straightening device for steel plate flatness, comprising a gantry frame (1), characterized in that: It also includes a control panel (2), a U-shaped clamp (3), a jack (4), a leveling plate (5), an infrared calibrator (6), and a baffle (7). The control panel (2) is set on one side of the top of the gantry frame (1), the U-shaped clamp (3) is set on the four corners of the top of the bottom of the gantry frame (1), the jack (4) is set on the bottom of the top of the gantry frame (1), the leveling plate (5) is set on the outer telescopic end of the jack (4), the infrared calibrator (6) is set on one side of the top of the bottom of the gantry frame (1), and the baffle (7) is set on the other side of the top of the bottom of the gantry frame (1).

2. The adjustable steel plate flatness non-destructive straightening device according to claim 1, characterized in that: Multiple sets of jacks (4) are equidistantly arranged. The cylinder drive mechanism of the jack (4) is electrically connected to the control panel (2). The baffle (7) and the infrared calibrator (6) are symmetrically positioned. An extension rod (401) is provided on the outer telescopic end of the jack (4). The leveling plate (5) is fixedly connected to the bottom end of the extension rod (401).

3. The adjustable steel plate flatness non-destructive straightening device according to claim 1, characterized in that: Two sets of support frames (101) are symmetrically arranged on both sides of the gantry frame (1), and the thickness of the support frame (101) is the same as the bottom thickness of the gantry frame (1).

4. The adjustable steel plate flatness non-destructive straightening device according to claim 1, characterized in that: Multiple sets of electric telescopic rods (301) are symmetrically arranged at the four corners of the bottom inner side of the gantry frame (1). The electric telescopic rods (301) are electrically connected to the control panel (2). The U-shaped clamp (3) is set at the outer telescopic end of the electric telescopic rod (301).

5. The adjustable steel plate flatness non-destructive straightening device according to claim 1, characterized in that: The top end of the U-shaped clamp (3) is provided with a first adjusting screw (302), which is threadedly connected to the U-shaped clamp (3). The bottom end of the first adjusting screw (302) is provided with a positioning pressure plate (303).

6. The adjustable steel plate flatness non-destructive straightening device according to claim 1, characterized in that: A fixed seat (601) is provided on one side of the bottom top of the gantry frame (1). The infrared calibrator (6) is located inside the fixed seat (601). An adjustment seat (602) is provided at the rear end of the infrared calibrator (6). A sliding frame (603) is provided on the outside of the adjustment seat (602). The sliding frame (603) is slidably connected to the adjustment seat (602).

7. The adjustable steel plate flatness non-destructive straightening device according to claim 6, characterized in that: A second adjusting screw (604) is provided through the top of the fixed seat (601). The second adjusting screw (604) is threadedly connected to the fixed seat (601). The adjusting seat (602) is rotatably connected to the bottom of the second adjusting screw (604). A through groove (605) is provided at the rear end of the sliding frame (603). An arrow (606) is provided on one side of the through groove (605). A scale line (607) is provided at the rear end of the fixed seat (601).

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