Stress monitoring and reinforcing device for large power transmission line tower steel structure

Abstract

The utility model relates to the field of iron tower steel structure reinforcing device discloses large -scale transmission line iron tower steel structure stress monitoring and reinforcing device, including steel structure support, steel structure cross board is fixedly connected with steel structure cross board and the quantity is two groups in the inner surface of steel structure support, the adjacent surface fixed connection of two groups steel structure cross board has steel structure cross board, the front surface of steel structure cross board is provided with stress detector through installation component, the front end of stress detector is provided with stress detection head, the outer wall of steel structure cross board is provided with reinforcing component. In the utility model, through setting up movable seat of slidable and telescopic adjusting connecting plate, extension board, cooperation screw rod, bevel gear etc. structure realizes the flexible adjustment of reinforcing length, need not frequent dismounting bolt and preparation many groups different length reinforcing piece, and can flexible adjustment movable seat end point connecting position, simplify the detection process operation, promoted device use convenience.

Description

Technical Field

[0001] This utility model relates to the field of steel structure reinforcement devices for transmission towers, and particularly to stress monitoring and reinforcement devices for steel structures of large transmission line towers. Background Technology

[0002] As the supporting structure for long-distance power transmission in power systems, large transmission line towers are located in complex outdoor environments and need to withstand the effects of strong winds, snow accumulation, and temperature changes. The stress strength of their steel structures directly determines the safety, stability, and service life of the towers.

[0003] To avoid tower deformation and component breakage caused by uneven stress distribution and insufficient stress, it is generally necessary to build a scale model before constructing a large transmission line tower. Then, reinforcement components are added to different locations on the model to balance and increase stress. Stress detectors are used to test the stress of the models with reinforcement components at different locations, and the appropriate installation locations are determined based on the data to ensure that stress is balanced when the large transmission line tower is finally installed.

[0004] While this allows for determining the appropriate installation location of the reinforcement device before testing, ensuring the stability of subsequent use of large transmission line towers, traditional reinforcement devices are often disassembled and reassembled using bolts when changing their installation location. This requires preparing multiple sets of reinforcement parts of different lengths, which leads to frequent disassembly and reassembly of the reinforcement device during the testing process. This is cumbersome, time-consuming, and requires the preparation of multiple reinforcement devices, resulting in complicated and time-consuming preparation work and high costs.

[0005] To address these issues, a stress monitoring and reinforcement device for the steel structure of large power transmission line towers is proposed. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a stress monitoring and reinforcement device for steel structures of large transmission line towers. It aims to improve the problems of the traditional reinforcement device in the prior art, which requires frequent bolt disassembly and assembly and multiple sets of reinforcement parts of different lengths when changing the installation position on the model, resulting in cumbersome and time-consuming detection operations, complicated preparation work and high cost.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a stress monitoring and reinforcement device for steel structures of large transmission line towers, comprising a steel structure support, wherein two sets of steel structure horizontal plates are fixedly connected to the inner surface of the steel structure support, and steel structure cross plates are fixedly connected to the adjacent surfaces of the two sets of steel structure horizontal plates, a stress detector is installed on the front surface of the steel structure horizontal plate through an installation assembly, a stress detection head is installed at the front end of the stress detector, and a reinforcement assembly is installed on the outer wall of the steel structure cross plate;

[0008] The reinforcement assembly includes a guide rail, which is fixedly connected to the front surface of the steel structure cross plate. A movable seat is slidably connected to the outer wall of the guide rail. A connecting plate is hinged to the bottom end of the inner surface of the movable seat. An extension plate is slidably connected through the lower surface of the connecting plate. A screw is rotatably connected to the inner surface of the connecting plate. A bevel gear is fixedly connected to the upper surface of the screw. A rotating shaft is rotatably connected to the inner surface of the connecting plate. A bevel gear is fixedly connected to the right end of the outer wall of the rotating shaft. A sliding rod is elastically connected to the inner wall of the right side of the rotating shaft through an elastic element. A connecting block is fixedly connected to the left surface of the sliding rod. A pull ring is rotatably connected to the left surface of the connecting block away from the center.

[0009] As a further description of the above technical solution:

[0010] The mounting assembly includes a back plate, which is fixedly connected to the rear surface of the stress detector. Slots are provided at the bottom of both the left and right sides of the back plate. A mounting plate is inserted into the inner wall of the slot, and a magnet is fixedly connected to the rear surface of the mounting plate.

[0011] As a further description of the above technical solution:

[0012] The screw passes through and is threaded onto the inner surface of the expansion plate, and the center of the screw and the bevel gear are on the same axis.

[0013] As a further description of the above technical solution:

[0014] The second bevel gear meshes with the first bevel gear, the slide rod passes through and is slidably connected to the left surface of the rotating shaft, and the connecting block is inserted into the left surface of the connecting plate.

[0015] As a further description of the above technical solution:

[0016] The guide rails and movable seats are provided in multiple sets, and the multiple sets of guide rails and movable seats are symmetrically distributed vertically with the center line of the steel structure cross plate as the axis.

[0017] As a further description of the above technical solution:

[0018] The bottom end of the extension plate is hinged to the top end of the inner surface of the movable seat at a lower position.

[0019] As a further description of the above technical solution:

[0020] The front end of the inner surface of the mounting plate is provided with a protrusion, which slides on the inner wall of the slot.

[0021] As a further description of the above technical solution:

[0022] The magnet is magnetically connected to the front surface of the steel structure plate.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, by setting a sliding movable seat and a retractable and adjustable connecting plate and extension plate, and cooperating with screws, bevel gears and other structures, the reinforcement length can be flexibly adjusted. There is no need to frequently disassemble and assemble bolts and prepare multiple sets of reinforcement parts of different lengths. The connection position of the end point of the movable seat can be flexibly adjusted, simplifying the operation of the testing process and improving the ease of use of the device.

[0025] 2. In this utility model, the device uses a mounting assembly that combines a magnet and a slot to quickly fix or remove the stress detector from the steel structure plate, thus achieving flexible assembly and disassembly of the stress detector and improving the ease of use of the device. Attached Figure Description

[0026] Figure 1 This is a front view of the three-dimensional structure of the overall device in this utility model;

[0027] Figure 2 This is a three-dimensional cross-sectional diagram of the steel structure cross plate and reinforcing components in this utility model.

[0028] Figure 3 This is a three-dimensional structural disassembly diagram of the reinforcing component in this utility model;

[0029] Figure 4 This is a three-dimensional cross-sectional view of the connecting plate and the expansion plate in this utility model;

[0030] Figure 5 This is a three-dimensional cross-sectional view of the rotating shaft of this utility model;

[0031] Figure 6 This is a three-dimensional structural disassembly diagram of the stress detection head and mounting components in this utility model.

[0032] Legend:

[0033] 1. Steel structure support; 2. Steel structure cross plate; 3. Steel structure cross plate; 4. Stress detector; 5. Stress detection head; 61. Guide rail; 62. Movable seat; 63. Connecting plate; 64. Expansion plate; 65. Screw; 66. Bevel gear one; 67. Bevel gear two; 68. Rotating shaft; 69. Elastic element; 610. Slide rod; 611. Connecting block; 612. Pull ring; 71. Back plate; 72. Slot; 73. Mounting plate; 74. Magnet. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Reference Figure 1 - Figure 2 This utility model provides an embodiment of a stress monitoring and reinforcement device for the steel structure of a large transmission line tower, including a steel structure support 1, shown as the bottom of a steel structure model of the tower. The steel structure support 1 is used for large transmission line towers. Before the construction of a large transmission line tower, it is necessary to test the stress of the steel structure of the tower. Often, a model of the same scale is built for testing. Two sets of steel structure horizontal plates 2 are fixedly connected to the inner surface of the steel structure support 1, arranged vertically. Adjacent surfaces of the two sets of steel structure horizontal plates 2 are fixedly connected to steel structure cross plates 3. The steel structure horizontal plates 2 and steel structure cross plates 3 cooperate to divide the inner surface of the steel structure support 1 into multiple triangles. Based on the principle of the stability of triangles, the stability of the device connection can be enhanced. The front surface of the structural cross plate 2 is equipped with a stress detector 4 for detecting the stress of the device via an installation assembly. The stress detector 4 is existing technology and can be implemented by those skilled in the art. As it is existing technology, it will not be described in detail in this case. The front end of the stress detector 4 is equipped with a screen to display the detection data intuitively. The front end of the stress detector 4 is equipped with a stress detection head 5. One end of the stress detection head 5 is connected to the stress detector 4. The end of the stress detection head 5 away from the stress detector 4 can detect the stress of the steel structure support 1, the steel structure cross plate 2, and the steel structure cross plate 3. The outer wall of the steel structure cross plate 3 is equipped with a reinforcement assembly to strengthen the overall strength of the steel structure support 1, the steel structure cross plate 2, and the steel structure cross plate 3.

[0036] Reference Figure 2 , Figure 4 , Figure 5The reinforcement components include a guide rail 61 that guides the movable seat 62. The guide rail 61 is inclined at the same angle as the steel cross plate 3. The guide rail 61 is fixedly connected to the front surface of the steel cross plate 3. Both ends of the front surface of the guide rail 61 are protruding to position the movable seat 62 and prevent it from slipping. The movable seat 62 is slidably connected to the outer wall of the guide rail 61. The connection between the guide rail 61 and the movable seat 62 is in tight contact. Without external force, the movable seat 62 cannot move. During testing, only pressure is applied to the movable seat 62, but the pressure is vertical. Furthermore, the pressure exerted on the movable seat 62 by the model during testing is insufficient to move the movable seat 62 along the guide rail 61, thus ensuring stability during stress testing. A connecting plate 63 is hinged to the bottom of the inner surface of the movable base 62. An extension plate 64 is slidably connected through the lower surface of the connecting plate 63. A screw 65 is rotatably connected to the inner surface of the connecting plate 63. A bevel gear 66 is fixedly connected to the upper surface of the screw 65. The screw 65 and the bevel gear 66 rotate synchronously. A rotating shaft 68 is rotatably connected to the inner surface of the connecting plate 63. A bevel gear 67 is fixedly connected to the right end of the outer wall of the rotating shaft 68. The bevel gear 66 and the bevel gear 67 are of the same model. A slide rod 610 is elastically connected to the inner wall of the right side of the rotating shaft 68 through an elastic element 69. A connecting block 611 is fixedly connected to the left surface of the slide rod 610. The slide rod 610 and the connecting block 611 move synchronously. A pull ring 612 is rotatably connected to the left surface of the connecting block 611 away from the center, allowing a finger to be inserted for easy pulling.

[0037] Reference Figure 3 - Figure 5 The screw 65 passes through and is threadedly connected to the inner surface of the expansion plate 64. When the screw 65 rotates, it will drive the expansion plate 64 to move longitudinally. The center of the screw 65 and the first bevel gear 66 is on the same axis. The second bevel gear 67 meshes with the first bevel gear 66. The rotation of the second bevel gear 67 can drive the first bevel gear 66 to rotate. The slide rod 610 passes through and is slidably connected to the left surface of the rotating shaft 68, and moves in the left and right direction. The connecting block 611 is inserted into the left surface of the connecting plate 63. Multiple sets of guide rails 61 and moving seats 62 are provided. The multiple sets of guide rails 61 and moving seats 62 are symmetrically distributed vertically with the center line of the steel structure cross plate 3 as the axis. The bottom end of the expansion plate 64 is hinged to the top of the inner surface of the moving seat 62 at the lower position.

[0038] Reference Figure 1 , Figure 6The mounting assembly includes a back plate 71, which is fixedly connected to the rear surface of the stress detector 4. Slots 72 are provided at the bottom of both the left and right sides of the back plate 71. Mounting plates 73 are inserted into the inner walls of the slots 72, corresponding to each other. A magnet 74 is fixedly connected to the rear surface of the mounting plate 73. A protrusion is provided at the front end of the inner surface of the mounting plate 73, which slides against the inner wall of the slot 72. The mounting plate 73 can be inserted into the slot 72 to position the stress detector 4. The magnet 74 is magnetically connected to the front surface of the steel structure horizontal plate 2, allowing the mounting plate 73 and the stress detector 4 to be quickly installed on the front surface of the steel structure horizontal plate 2 for convenient testing.

[0039] Working principle: When using this device, first attach the magnet 74 to the steel structure plate 2, then put the slot 72 on the outside of the mounting plate 73, and hang the stress detector 4 and stress detection head 5 for easy subsequent testing. When disassembly is required, simply pull the mounting plate 73 forward.

[0040] When the stress detector 4 is mounted, use the stress detection head 5 to detect the stress on the steel structure support 1, steel structure cross plate 2, and steel structure cross plate 3. The detected data will be displayed on the screen of the stress detector 4. Then, record the data and remove the stress detection head 5. Then, pull the pull ring 612 to the left to move the connecting block 611 to the left. The limit of the connecting block 611 will be released, which will drive the slide rod 610 to move to the left and stretch the elastic element 69 to generate a reaction force. After the limit is released, rotate the pull ring 612 to rotate the connecting block 611, which in turn drives the slide rod 610 and the second bevel gear 67 to rotate. When the second bevel gear 67 rotates, it will drive the first bevel gear 66 and the screw 65 to rotate. The rotating screw 65 This will cause the extension plate 64 to move longitudinally, and the total length of the extension plate 64 and the connecting plate 63 will change. At this time, the position of the moving seat 62 on the guide rail 61 will change, and the area of ​​the two sides separated by the connecting plate 63 and the extension plate 64 will change. When it is adjusted, stop rotating and rotate until the connecting block 611 and the connecting plate 63 are aligned. Then release the pull ring 612. The elasticity of the elastic element 69 will pull the slide rod 610, the connecting block 611 and the pull ring 612 to the right. The connecting block 611 will be inserted and limited with the connecting plate 63 to maintain the stability of the device. Then use the stress detection head 5 to detect the stress of the steel structure bracket 1, the steel structure cross plate 2 and the steel structure cross plate 3 in this state.

[0041] By inspecting multiple different areas and determining the required installation positions of the connecting plate 63 and the expansion plate 64 based on the recorded data, the connecting plate 63 and the expansion plate 64 are replaced with steel plates during the subsequent formal installation. The two ends of the steel plates are then welded to the suitable installation points of the connecting plate 63 and the expansion plate 64 as detected, thereby reinforcing the steel structure of the large transmission line tower and ensuring the stability of the steel structure of the large transmission line tower in subsequent use.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stress monitoring and reinforcement device for steel structures of large transmission line towers, comprising a steel structure support (1), characterized in that: The inner surface of the steel structure support (1) is fixedly connected with two sets of steel structure horizontal plates (2). The adjacent surfaces of the two sets of steel structure horizontal plates (2) are fixedly connected with steel structure cross plates (3). The front surface of the steel structure horizontal plate (2) is equipped with a stress detector (4) through an installation component. The front end of the stress detector (4) is equipped with a stress detection head (5). The outer wall of the steel structure cross plate (3) is equipped with a reinforcement component. The reinforcement component includes a guide rail (61), which is fixedly connected to the front surface of the steel structure cross plate (3). A movable seat (62) is slidably connected to the outer wall of the guide rail (61). A connecting plate (63) is hinged to the bottom end of the inner surface of the movable seat (62). An extension plate (64) is slidably connected through the lower surface of the connecting plate (63). A screw (65) is rotatably connected to the inner surface of the connecting plate (63). A bevel gear (66) is fixedly connected to the upper surface of the screw (65). A rotating shaft (68) is rotatably connected to the inner surface of the connecting plate (63). A bevel gear (67) is fixedly connected to the right end of the outer wall of the rotating shaft (68). A slide rod (610) is elastically connected to the inner wall of the right side of the rotating shaft (68) through an elastic element (69). A connecting block (611) is fixedly connected to the left surface of the slide rod (610). A pull ring (612) is rotatably connected to the left surface of the connecting block (611) away from the center.

2. The stress monitoring and reinforcement device for steel structures of large transmission line towers according to claim 1, characterized in that: The mounting assembly includes a back plate (71), which is fixedly connected to the rear surface of the stress detector (4). The bottom ends of both sides of the back plate (71) are provided with slots (72), and mounting plates (73) are inserted into the inner walls of the slots (72). Magnets (74) are fixedly connected to the rear surface of the mounting plates (73).

3. The stress monitoring and reinforcement device for steel structures of large transmission line towers according to claim 1, characterized in that: The screw (65) passes through and is threaded onto the inner surface of the expansion plate (64), and the center of the screw (65) and the bevel gear (66) are on the same axis.

4. The stress monitoring and reinforcement device for steel structures of large transmission line towers according to claim 1, characterized in that: The second bevel gear (67) and the first bevel gear (66) mesh, the slide rod (610) passes through and is slidably connected to the left surface of the rotating shaft (68), and the connecting block (611) is inserted into the left surface of the connecting plate (63).

5. The stress monitoring and reinforcement device for steel structures of large transmission line towers according to claim 1, characterized in that: The guide rail (61) and the movable seat (62) are provided in multiple sets, and the multiple sets of the guide rail (61) and the movable seat (62) are symmetrically distributed vertically with the center line of the steel structure cross plate (3) as the axis.

6. The stress monitoring and reinforcement device for steel structures of large transmission line towers according to claim 5, characterized in that: The bottom end of the extension plate (64) is hinged to the top of the inner surface of the movable seat (62) at a lower position.

7. The stress monitoring and reinforcement device for steel structures of large transmission line towers according to claim 2, characterized in that: The front end of the inner surface of the mounting plate (73) is provided with a protrusion, which slides on the inner wall of the slot (72).

8. The stress monitoring and reinforcement device for steel structures of large transmission line towers according to claim 2, characterized in that: The magnet (74) is magnetically connected to the front surface of the steel structure plate (2).

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