A special-shaped steel straightening device for bridge expansion joints
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGSHU BRIDGE & TUNNEL RUBBER CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-08-07
AI Technical Summary
传统矫正方法效率低、精度差,难以满足现代桥梁建设与维护的需求
本实用新型中,所述的一种桥梁伸缩装置异型钢矫正设备,通过设置的夹持组件,在夹持组件中通过同步启动两侧的电动伸缩杆可改变两个夹槽之间的间距,用以适用于不同长度的异型钢进行夹持,通过启动第二液压杆能够带动夹槽内侧的两个夹持板改变其之间的间距,用以对不同截面尺寸的异型钢进行夹持,通过电动伸缩杆和第二液压杆的配合驱动作用使本装置能够对不同规格的异型钢进行夹持,提高了本实用新型的适用范围。
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Figure CN224600227U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of irregular steel straightening technology, and in particular to an irregular steel straightening device for bridge expansion joints. Background Technology
[0002] Bridge expansion joints are structural devices installed between bridge beams, between beams and abutments, or at hinged joints of bridges to meet the expansion and contraction requirements of bridge structures under the influence of factors such as temperature changes, concrete shrinkage and creep, vehicle loads, and earthquakes.
[0003] The irregularly shaped steel sections in bridge expansion joints often deform due to various factors during production, transportation, and installation, affecting the normal use of the expansion joints and the overall performance of the bridge. Traditional straightening methods are inefficient and lack precision, making it difficult to meet the needs of modern bridge construction and maintenance. Therefore, developing a bridge expansion joint irregularly shaped steel straightening device with high straightening precision and wide applicability is of great significance. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a bridge expansion joint irregular steel straightening device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A bridge expansion joint steel profile straightening device includes a supporting base plate. The upper side of the supporting base plate is provided with a steel profile straightening assembly and a clamping assembly for the bridge expansion joint. The clamping assembly includes two symmetrically arranged electric telescopic rods. A movable vertical plate is fixedly installed on the output end of each electric telescopic rod. A rotating groove is formed at the bottom of the movable vertical plate, and a rotating roller is rotatably installed inside the rotating groove. A drive motor is fixedly installed on the back of the movable vertical plate. The output end of the drive motor rotates through to the inner side of the movable vertical plate, and a clamping groove is fixedly installed on the output end of the drive motor. Second hydraulic rods are symmetrically fixedly installed on the upper and lower sides of the clamping groove, and a clamping plate is fixedly installed on the output end of the second hydraulic rods.
[0006] Furthermore, a photosensitive plate is fixedly installed on the upper side of the support base plate, and tempered glass is fixedly installed on the upper side of the photosensitive plate, with the rotating roller making rolling contact with the tempered glass.
[0007] Furthermore, a support frame is fixedly installed on the upper side of the support base plate, and a controller is fixedly installed on the side wall of the support frame.
[0008] Furthermore, a top seat is fixedly installed at the bottom of the support frame, and a vertical light groove is opened on the lower side of the top seat. An infrared direct light is fixedly installed inside the vertical light groove.
[0009] Furthermore, the infrared direct light is located directly above the photosensitive flat panel.
[0010] Furthermore, the irregular steel straightening assembly includes two symmetrically arranged L-shaped folding plates, which are fixedly installed on the upper side of the support base plate, and several stiffening plates are fixedly installed at the bends of the L-shaped folding plates.
[0011] Furthermore, a plurality of first hydraulic rods are fixedly installed at equal intervals on the inner side of the L-shaped folding plate, and a straightening pressure plate is fixedly installed on the output end of the first hydraulic rod.
[0012] Furthermore, a fixed plate seat is fixedly installed on the upper side of the support base plate, and the electric telescopic rod is fixedly installed on the inner side of the fixed plate seat.
[0013] Compared with related technologies, the bridge expansion joint steel straightening device proposed in this utility model has the following beneficial effects: In this utility model, a bridge expansion joint irregular steel straightening device is provided. Through the clamping assembly, the distance between the two clamping slots can be changed by synchronously activating the electric telescopic rods on both sides of the clamping assembly, so as to clamp irregular steel of different lengths. By activating the second hydraulic rod, the distance between the two clamping plates on the inner side of the clamping slot can be changed, so as to clamp irregular steel of different cross-sectional dimensions. Through the combined driving action of the electric telescopic rod and the second hydraulic rod, this device can clamp irregular steel of different specifications, thus improving the applicability of this utility model.
[0014] In addition, this utility model has infrared direct light lamps and photosensitive flat plates respectively set on the upper and lower sides of the clamping component. After the irregular steel is clamped, the infrared direct light lamp shines downward, and the vertical area of the irregular steel will leave a shadow on the photosensitive flat plate. The controller can determine the deformation area of the irregular steel by comparing the edge line of the shadow with the edge line outline of the original design. The detection method using electro-optics has high detection accuracy. Subsequently, the irregular steel can be accurately corrected by the correction component, which has high correction accuracy. Attached Figure Description
[0015] Figure 1 A three-dimensional structural diagram of a bridge expansion joint steel straightening device proposed in this utility model. Figure 1 ; Figure 2 A three-dimensional structural diagram of a bridge expansion joint steel straightening device proposed in this utility model. Figure 2 ; Figure 3 This is a three-dimensional structural diagram of some components of a bridge expansion joint steel straightening device proposed in this utility model; Figure 4 This is a three-dimensional structural diagram of the irregular steel clamping assembly.
[0016] In the diagram: 1. Support base plate; 2. Irregular steel straightening assembly; 21. L-shaped folding plate; 22. Stiffening plate; 23. First hydraulic rod; 24. Straightening pressure plate; 3. Clamping assembly; 31. Fixed plate seat; 32. Electric telescopic rod; 33. Movable vertical plate; 34. Rotary groove; 35. Rotary roller; 36. Drive motor; 37. Clamping groove; 38. Second hydraulic rod; 39. Clamping plate; 4. Photosensitive flat plate; 5. Support frame; 6. Controller; 7. Top seat; 8. Vertical light groove; 9. Infrared direct light. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0018] Reference Figures 1-4 A bridge expansion joint steel profile straightening device includes a support base plate 1. A steel profile straightening component 2 and a clamping component 3 for the bridge expansion joint are mounted on the upper side of the support base plate 1. The clamping component 3 includes two symmetrically arranged electric telescopic rods 32. A movable vertical plate 33 is fixedly installed on the output end of each electric telescopic rod 32. A rotating groove 34 is opened at the bottom of the movable vertical plate 33. A rotating roller 35 is rotatably installed inside the rotating groove 34. A drive motor 36 is fixedly installed on the back of the movable vertical plate 33. The output end of the drive motor 36 rotates through to the inner side of the movable vertical plate 33, and a clamping groove 37 is fixedly installed on the output end of the drive motor 36. Second hydraulic rods 38 are symmetrically fixedly installed on the upper and lower sides of the clamping groove 37. A clamping plate 39 is fixedly installed on the output end of the second hydraulic rods 38.
[0019] With the above configuration, the drive motor 36 can drive the irregular steel clamped between the clamping plates 39 to rotate, thereby enabling the correction of the irregular steel at multiple angles, with a wide correction area.
[0020] In this method, a photosensitive plate 4 is fixedly installed on the upper side of the support base plate 1, and tempered glass is fixedly installed on the upper side of the photosensitive plate 4. The rotating roller 35 makes rolling contact with the tempered glass.
[0021] The above-mentioned setup, including the tempered glass, prevents scratches on the photosensitive plate 4. In addition, the rotating roller 35 ensures that the bottom of the entire movable vertical plate 33 rolls and contacts the tempered glass, making its movement smoother and more stable.
[0022] In this method, a top seat 7 is fixedly installed at the bottom of the support frame 5, and a vertical light groove 8 is opened on the lower side of the top seat 7. An infrared direct light 9 is fixedly installed inside the vertical light groove 8, and the infrared direct light 9 is located directly above the photosensitive flat plate 4.
[0023] With the above-described arrangement, the vertical light trough 8 and the infrared direct light 9 are combined to ensure that when the infrared direct light 9 emits light, the light emitted is directed vertically downwards by its own direct illumination and the guidance of the vertical light trough 8.
[0024] In this method, the irregular steel straightening component 2 includes two symmetrically arranged L-shaped folding plates 21. The L-shaped folding plates 21 are fixedly installed on the upper side of the support base plate 1. Several stiffening plates 22 are fixedly installed at the bend of the L-shaped folding plates 21. Several first hydraulic rods 23 are fixedly installed at equal intervals on the inner side of the L-shaped folding plates 21. A straightening pressure plate 24 is fixedly installed on the output end of the first hydraulic rods 23.
[0025] With the above settings, when the controller 6 determines the deformation area of the special-shaped steel by comparing the shadow outline on the photosensitive plate 4, it activates the first hydraulic rod 23 corresponding to the side of the area to push the straightening pressure plate 24 to apply pressure to straighten the deformed protruding part.
[0026] In this method, a support frame 5 is fixedly installed on the upper side of the support base plate 1, and a controller 6 is fixedly installed on the side wall of the support frame 5.
[0027] By setting it up in the above manner, controller 6 is used to control the coordinated operation of various electrical components and improve the degree of automation.
[0028] In this method, a fixed plate base 31 is fixedly installed on the upper side of the support base plate 1, and an electric telescopic rod 32 is fixedly installed on the inner side of the fixed plate base 31.
[0029] Through the above-described configuration, the fixed plate base 31 provides lateral support for the electric telescopic rod 32.
[0030] The working principle of the bridge expansion joint irregular steel straightening device provided by this utility model is as follows: In use, the irregular steel to be corrected is placed on the support base plate 1 and moved toward the clamping assembly 3. The electric telescopic rods 32, which are symmetrically arranged on both sides of the clamping assembly 3, are activated. The output end of the electric telescopic rod 32 extends or retracts, driving the movable vertical plate 33 to move, thereby changing the distance between the two clamping slots 37 to accommodate irregular steel of different lengths. When the irregular steel is in a suitable position between the two clamping slots 37, the second hydraulic rod 38 is activated. The output end of the second hydraulic rod 38 pushes the clamping plate 39 to move, so that the two clamping plates 39 move together. 9. The irregular steel is firmly clamped from both the top and bottom. At this time, the bottom of the irregular steel is in contact with the tempered glass. The rotating roller 35 rolls in the rotating groove 34, providing smooth support for the movement of the movable vertical plate 33 and ensuring stability during the clamping process. After clamping, the infrared direct light 9 located in the vertical light groove 8 of the top seat 7 is turned on. The light emitted is guided vertically downward by the vertical light groove 8. The irregular steel blocks the light, forming a shadow on the photosensitive plate 4. The controller 6 acquires the edge data of the shadow on the photosensitive plate 4 and compares it with the edge data of the original design. The profile is compared and analyzed. Through precise image recognition and data processing algorithms, the specific deformation area, degree of deformation, and direction of deformation of the special-shaped steel are determined, providing an accurate basis for subsequent straightening work. According to the detection results, the controller 6 determines the parts that need to be straightened and the straightening parameters, and sends instructions to the special-shaped steel straightening component 2. For the deformation area, the first hydraulic rod 23 on the L-shaped folding plate 21 corresponding to the side of the area is activated. The output end of the first hydraulic rod 23 pushes the straightening pressure plate 24 to apply pressure and straighten the deformed protruding part of the special-shaped steel with the set pressure and stroke. If there are multiple deformation areas of the special-shaped steel or different sides need to be straightened, the drive motor 36 can be activated. The drive motor 36 drives the clamping groove 37 to rotate, thereby causing the clamped special-shaped steel to rotate and adjust the different deformation areas to the appropriate positions. The above straightening steps are repeated until all parts of the special-shaped steel are straightened to meet the standards. During the straightening process, the pressure of the first hydraulic rod 23 and the displacement of the straightening pressure plate 24 can be adjusted in real time by the controller 6 according to the actual situation to ensure the straightening accuracy.
[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A device for straightening irregularly shaped steel sections of a bridge expansion joint, characterized in that, It includes a support base plate (1), and the upper side of the support base plate (1) is provided with a special steel straightening component (2) and a clamping component (3) for a bridge expansion joint. The clamping assembly (3) includes two symmetrically arranged electric telescopic rods (32). A movable vertical plate (33) is fixedly installed on the output end of the electric telescopic rod (32). A rotating groove (34) is opened at the bottom of the movable vertical plate (33). A rotating roller (35) is rotatably installed inside the rotating groove (34). A drive motor (36) is fixedly installed on the back of the movable vertical plate (33). The output end of the drive motor (36) rotates through to the inner side of the movable vertical plate (33), and a clamping groove (37) is fixedly installed on the output end of the drive motor (36). A second hydraulic rod (38) is symmetrically fixedly installed on the upper and lower sides of the clamping groove (37). A clamping plate (39) is fixedly installed on the output end of the second hydraulic rod (38).
2. The bridge expansion joint irregular steel straightening device according to claim 1, characterized in that, A photosensitive plate (4) is fixedly installed on the upper side of the support base plate (1), and tempered glass is fixedly installed on the upper side of the photosensitive plate (4). The rotating roller (35) is in rolling contact with the tempered glass.
3. The bridge expansion joint irregular steel straightening device according to claim 1, characterized in that, A support frame (5) is fixedly installed on the upper side of the support base plate (1), and a controller (6) is fixedly installed on the side wall of the support frame (5).
4. The bridge expansion joint irregular steel straightening device according to claim 3, characterized in that, The support frame (5) is fixedly installed with a top seat (7) at the bottom. A vertical light groove (8) is opened on the lower side of the top seat (7). An infrared direct light (9) is fixedly installed on the inner side of the vertical light groove (8).
5. A bridge expansion joint irregular steel straightening device according to claim 4, characterized in that, The infrared direct light (9) is located directly above the photosensitive plate (4).
6. The bridge expansion joint irregular steel straightening device according to claim 1, characterized in that, The irregular steel straightening component (2) includes two symmetrically arranged L-shaped folding plates (21). The L-shaped folding plates (21) are fixedly installed on the upper side of the support base plate (1). Several stiffening plates (22) are fixedly installed at the bending part of the L-shaped folding plates (21).
7. A bridge expansion joint irregular steel straightening device according to claim 6, characterized in that, A plurality of first hydraulic rods (23) are fixedly installed at equal intervals on the inner side of the L-shaped folding plate (21), and a straightening pressure plate (24) is fixedly installed on the output end of the first hydraulic rods (23).
8. The bridge expansion joint irregular steel straightening device according to claim 1, characterized in that, A fixed plate seat (31) is fixedly installed on the upper side of the supporting base plate (1), and the electric telescopic rod (32) is fixedly installed on the inner side of the fixed plate seat (31).