A transmission tower straightening and strengthening device

Abstract

The present invention relates to the technical field of electric power construction, and particularly to a device for straightening and reinforcing a transmission tower, which includes a base and a hydraulic cylinder for straightening the main beam on the side where the tower body has settled. The bottom of the hydraulic cylinder is ball-jointed to the top surface of the base; multiple first cables are used to mutually pull between the side wall of the base and the other three main beams of the tower body; a first clamping plate and a second clamping plate are respectively arranged on the main beam on the side where the tower body has settled and the main beam opposite thereto. The first clamping plate is ball-jointed to the output end of the hydraulic cylinder, and a second cable is detachably connected to the second clamping plate. The second cable sequentially bypasses a first fixed pulley fixed on the ground, a second fixed pulley fixed on the top surface of the base, and a third fixed pulley fixed on the first clamping plate and is then detachably connected to the top surface of the base. The first fixed pulley is placed on the side of the tower body away from the base. The present invention can reduce the torsional stress on the main beam of the tower body during the straightening process, reduce the probability of damage to the main beam, and improve the stability of the tower body during the straightening process.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power construction, and particularly relates to a device for straightening and strengthening a transmission tower. Background Art

[0002] A transmission tower is a specially designed tower-shaped structure used to support and suspend high-voltage transmission lines. Its main function is to ensure the safe operation of the power line while maintaining a safe distance between the line and the ground and other objects. The height of the transmission tower depends on the voltage level of the transmission line and topographical requirements, and can range from dozens of meters to over a hundred meters. The transmission tower consists of a tower base, a tower body, etc. The tower base is the supporting structure of the transmission tower, used to fix the tower on the ground or foundation; the tower body is the main structure of the transmission tower.

[0003] Due to some reasons, such as uneven foundation soil quality or improper foundation treatment, landslides or collapses of the land, earthquakes, uneven loads on both sides of the tower, extreme weather such as strong winds, external impact accidents such as vehicle impacts, etc., the tower base may move, causing the tower body to tilt in the vertical direction and / or the horizontal direction.

[0004] For the situation where the transmission tower tilts in the vertical direction, a Chinese patent document with the authorization announcement number CN115075647B discloses a transmission tower deviation correction device and its deviation correction method, including a bottom plate horizontally arranged on the ground and a jacking assembly installed on the bottom plate; the jacking assembly includes a hydraulic cylinder, a support seat, and a support rod, and one end of the support rod is horizontally fixedly connected to the main material of the transmission tower during deviation correction.

[0005] In view of the above related technologies, one end of the support rod is horizontally fixedly connected to the main material of the transmission tower during deviation correction. During the straightening process, the acting force between the main beam of the main support leg of the tower body and the hydraulic cylinder is not on the same straight line, resulting in a force perpendicular to the main beam twisting the main beam. Since the torsional resistance of the main beam is limited, it may cause damage to the main beam structure, and seriously, the entire transmission tower may need to be rebuilt. Summary of the Invention

[0006] In view of this, the present invention provides a device for straightening and strengthening a transmission tower, aiming to solve the technical problem that the torsional stress suffered by the main beam of the tower body during the straightening process of the transmission tower in the prior art may cause damage to the tower body.

[0007] To solve the above technical problems, a transmission tower straightening and reinforcement device provided by the present invention adopts the following technical solutions: A transmission tower straightening and reinforcement device includes a base and a hydraulic cylinder for straightening the main beam on the side where the tower body has settled. The bottom of the hydraulic cylinder is ball-jointed to the top surface of the base; multiple first cables are used to traction between the side wall of the base and the other three main beams of the tower body; a first clamping plate and a second clamping plate are respectively arranged on the main beam on the side where the tower body has settled and the main beam opposite thereto. The first clamping plate is ball-jointed to the output end of the hydraulic cylinder. A second cable is detachably connected to the second clamping plate. The second cable sequentially bypasses a first fixed pulley fixed on the ground, a second fixed pulley fixed on the top surface of the base, and a third fixed pulley fixed on the first clamping plate and is then detachably connected to the top surface of the base. The first fixed pulley is placed on the side of the tower body away from the base.

[0008] By adopting the above technical solutions, both the bottom and the output end of the hydraulic cylinder are ball-jointed, so that the inclination angle of the hydraulic cylinder gradually changes during the process of straightening the tower body, which is beneficial to reducing the included angle between the direction of the output force of the output end of the hydraulic cylinder and the direction of the main beam of the tower body, thereby reducing the torsional stress on the main beam; through multiple first cables, the base can be fixed, which is beneficial to the stability of the base. At the same time, the requirement for the ground flatness during the installation process of the base can be reduced, and the convenience of the straightening and reinforcement process can be improved; the pulley block can amplify the distance change, so that the second cable and the second clamping plate have an inclined downward force on the tower body, making the straightening process more stable, which is beneficial to maintaining the balance of the tower body during the straightening process. At the same time, the jacking force required for the main beam on the side where the tower body has settled can be reduced, and further the torsional stress on the main beam on the side where the tower body has settled can be reduced, which is beneficial to reducing the probability of damage to the tower body; at the same time, the first clamping plate and the second clamping plate can improve the torsional resistance of the force-bearing position of the main beam.

[0009] Optionally, three first cables are provided. Two of the first cables are both connected between the side of the base and the bottom of the main beam opposite to the main beam on the settlement side. The two ends of the other first cable are respectively connected to the bottoms of the two main beams adjacent to the main beam on the settlement side, and the middles of the two first cables are both connected to the other first cable.

[0010] By adopting the above technical solutions, the relevance between the other three main beams of the tower body and the base is strengthened, so that the first cable can fix the base, improve the stability of the device, and enhance the stability of the straightening process.

[0011] Optionally, the ends of the first cable are fixed in a binding knot manner.

[0012] By adopting the above technical solutions, the convenience of the construction process is improved.

[0013] Optionally, the two ends of the second cable are detachably connected in a nut-screw manner.

[0014] By adopting the above technical solution, the convenience of the construction process is improved.

[0015] Optionally, both the first clamping plate and the second clamping plate are composed of two clamping plates respectively attached to the inner and outer sides of the main beam.

[0016] By adopting the above technical solution, by applying force to the first clamping plate and the second clamping plate, the tower body is then straightened. The two clamping plates are attached to the inner and outer sides of the main beam, which is convenient for improving the stability of the straightening process, and the clamping plates are beneficial to improving the torsional resistance of the stress-bearing part of the main beam.

[0017] Optionally, the two clamping plates are fixed by bolts and nuts.

[0018] By adopting the above technical solution, it is convenient for installation and fixation, and is convenient for improving the convenience of the construction process.

[0019] Optionally, the contact surface between the clamping plate and the main beam is provided with anti-slip lines.

[0020] Optionally, a connecting plate is fixedly connected to the clamping plate attached to the outer side of the main beam. The hydraulic cylinder and the third fixed pulley are connected to one of the connecting plates, and the end of the second cable is connected to the other connecting plate.

[0021] In summary, the present invention includes the following beneficial technical effects:

[0022] 1. Both the bottom and the output end of the hydraulic cylinder are spherical hinges, so that the inclination angle of the hydraulic cylinder gradually changes during the process of straightening the tower body, which is beneficial to reducing the included angle between the direction of the output force of the output end of the hydraulic cylinder and the direction of the main beam of the tower body, thereby reducing the torsional stress borne by the main beam;

[0023] Through multiple first cables, the base can be fixed, which is beneficial to the stability of the base. At the same time, the requirement for the ground flatness during the installation process of the base can be reduced, and the convenience of the straightening and reinforcement process can be improved;

[0024] The pulley block can magnify the distance change, so that the second cable and the second clamping plate have an inclined downward force on the tower body, making the straightening process more stable, which is beneficial to maintaining the balance of the tower body during the straightening process. At the same time, the jacking force required for the main beam on the side where the tower body sinks can be reduced, and thus the torsional stress borne by the main beam on the side where the tower body sinks can also be reduced, which is beneficial to reducing the probability of damage to the tower body;

[0025] At the same time, the first clamping plate and the second clamping plate can improve the torsional resistance of the stress-bearing position of the main beam.

[0026] 2. The end of the first cable is fixed to the bottom of the main beam in the form of a fixed knot, which is beneficial to reducing the workload of the staff during the construction process, improving the convenience of the construction process, facilitating installation, and reducing the occurrence of accidental loosening of the first cable, thereby ensuring the stability of the construction process.

[0027] 3. The end of the second cable is detachably connected in the way of a nut and screw rod, which can improve the convenience of the construction process while ensuring a stable connection and enhancing the flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0029] Figure 2 is a schematic diagram of the structures of the first clamping plate and the second clamping plate in an embodiment of the present invention;

[0030] Figure 3 is a schematic diagram of the structures of the first clamping plate and the first cable in an embodiment of the present invention;

[0031] Figure 4 is Figure 3 a partial enlarged schematic diagram of part A in

[0032] Figure 5 is a schematic diagram of the structures of the second clamping plate and the second cable in an embodiment of the present invention.

[0033] DESCRIPTION OF THE REFERENCE NUMERALS: 1. Base; 2. Hydraulic cylinder; 3. First clamping plate; 4. Second clamping plate; 5. First cable; 6. Second cable; 7. First fixed pulley; 8. Second fixed pulley; 9. Third fixed pulley; 10. Clamping plate; 11. Connecting plate; 12. Tower body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention fall within the scope of protection of the present invention.

[0035] The following Figure 1 - Figure 5 further describes the present invention in detail with reference to the attached

[0036] An embodiment of the present invention discloses a device for straightening and strengthening a transmission tower. Referring to Figures 1 to 5 , a device for straightening and strengthening a transmission tower includes a base 1, a hydraulic cylinder 2, a first clamping plate 3, a second clamping plate 4, multiple first cables 5, and a second cable 6.

[0037] Reference Figure 1 and Figure 2 , the base 1 is generally in the shape of a cuboid. The base 1 is placed on the side of the tower body 12 where settlement occurs, and the base 1 is placed on the outer edge of the tower body 12, used to support the hydraulic cylinder 2, facilitating the hydraulic cylinder 2 to exert force on the main beam on the side of the tower body 12 where settlement occurs.

[0038] Reference Figure 2 and Figure 3 , the side wall of the base 1 and the other three main beams of the tower body 12 are mutually pulled by three first cables 5.

[0039] Through the three first cables 5, the base 1 can be fixed, which is beneficial to the stability of the base 1. At the same time, the requirement for the ground flatness during the installation process of the base 1 can be reduced, and the convenience of the straightening and reinforcement process can be improved.

[0040] Reference Figure 3 and Figure 4 , the bottom of the hydraulic cylinder 2 is ball-jointed to the top surface of the base 1. The hydraulic cylinder 2 is used to lift the tower body 12 and straighten the tower body 12. The first clamping plate 3 is connected to the main beam on the side of the tower body 12 where settlement occurs, and the output end of the hydraulic cylinder 2 is ball-jointed to the first clamping plate 3.

[0041] Both the bottom and the output end of the hydraulic cylinder 2 are ball-jointed, so that the inclination angle of the hydraulic cylinder 2 gradually changes with the straightening process of the tower body 12, which is beneficial to reducing the included angle between the direction of the output force of the output end of the hydraulic cylinder 2 and the direction of the main beam of the tower body 12, thereby reducing the torsional stress on the main beam. The first clamping plate 3 can improve the torsional resistance of the force-bearing position of the main beam.

[0042] Reference Figure 2 and Figure 5 , the second clamping plate 4 is connected to the main beam opposite to the main beam on the settlement side. The second clamping plate 4 is detachably connected to the second cable 6. The second cable 6 sequentially bypasses the first fixed pulley 7 fixed on the ground, the second fixed pulley 8 fixed on the top surface of the base 1, and the third fixed pulley 9 fixed on the first clamping plate 3 and then is detachably connected to the top surface of the base 1. The first fixed pulley 7 is placed on the side of the tower body 12 away from the base 1. The specific placement position of the first fixed pulley 7 needs to be calculated by professionals. The specific calculation method belongs to the technical content well-known to those skilled in the art and will not be elaborated here.

[0043] The pulley block can amplify the distance change, so that the second cable 6 and the second clamping plate 4 exert an inclined downward force on the tower body 12. The first clamping plate 3 and the second clamping plate 4 act together on the tower body 12, which can make the straightening process more stable, is conducive to maintaining the balance of the tower body 12 during the straightening process, and at the same time can reduce the jacking force required for the main beam on the side where the tower body 12 sinks. Furthermore, it can also reduce the torsional stress on the main beam on the side where the tower body 12 sinks, which is conducive to reducing the probability of damage to the tower body 12. The second clamping plate 4 can improve the anti-torsion ability of the force-bearing position of the main beam.

[0044] Referring to Figure 3 , there are three first cables 5. Two of the first cables 5 are connected between the side of the base 1 and the bottom of the main beam opposite to the main beam on the sinking side. The two ends of the other first cable 5 are respectively connected to the bottoms of the two main beams adjacent to the main beam on the sinking side. The three main beams adjacent to the main beam on the sinking side and the main beam on the sinking side form an isosceles triangle when connected, and the middle parts of the two first cables 5 are both connected to the other first cable 5.

[0045] Strengthen the connection between the other three main beams of the tower body 12 and the base 1, so that the first cable 5 can play a fixing role on the base 1, improve the stability of the device, and enhance the stability of the straightening process.

[0046] Referring to Figure 3 , the ends of the first cable 5 are fixed in the way of binding knots, and the first cable 5 and the first cable 5 are fixed to each other in the way of binding knots.

[0047] The binding knot belongs to a common connection method, which is conducive to reducing the workload of the staff during the construction process, can improve the convenience of the construction process, is convenient for installation, and reduces the occurrence of accidental loosening of the first cable 5, ensuring the stability of the construction process.

[0048] Referring to Figure 5 , the two ends of the second cable 6 are detachably connected in the way of nuts and screws.

[0049] The screw is fixedly connected to the end of the second cable 6, and the nut is installed at the installation position of the end of the second cable 6. The screw is threadedly inserted into the nut, which belongs to a common connection method, improves the flexibility of the device, is convenient for installing the first clamping plate 3 and the second clamping plate 4 according to the settlement situation of the tower body 12, and then installing the second cable 6 according to the installation situation of the first fixed pulley 7, which is convenient for use and improves the convenience of the construction process.

[0050] Referring to Figure 2 and Figure 4 , both the first clamping plate 3 and the second clamping plate 4 are composed of two clamping plates 10 that are respectively attached to the inner and outer sides of the main beam.

[0051] The two clamping plates 10 cooperate with each other, facilitating the transmission of force to the first clamping plate 3 and the second clamping plate 4 and then acting on the main beam, which can improve the torsional resistance of the main beam and enhance the stability during the straightening process.

[0052] Referring to Figure 4 , the two clamping plates 10 are fixed by bolts and nuts.

[0053] One end of the bolt passes through the two clamping plates 10 and is threadedly connected to the nut. The bolt and the nut cooperate to limit the positions of the two clamping plates 10 and the main beam, making their connection stable, facilitating the application of force to the main beam through the clamping plates 10. This is a commonly used connection method, which is convenient for installation and disassembly and improves the convenience during the construction process.

[0054] Referring to Figure 4 , the contact surface between the clamping plate 10 and the main beam is provided with anti-slip threads.

[0055] Referring to Figure 4 , a connecting plate 11 is fixedly connected to the clamping plate 10 attached to the outer side of the main beam. The hydraulic cylinder 2 and the third fixed pulley 9 are connected to one of the connecting plates 11, and the end of the second cable 6 is connected to the other connecting plate 11. This facilitates the installation of other structures, provides a force application point, and improves stability.

[0056] The implementation principle of the transmission tower straightening and reinforcement device according to the embodiment of the present invention is as follows:

[0057] Install the base 1, the hydraulic cylinder 2 and the first clamping plate 3 on the side of the tower body 12 where settlement occurs, and install three first cables 5.

[0058] Install the second clamping plate 4 and the first fixed pulley 7, and install the second cable 6.

[0059] Start the hydraulic cylinder 2. The output end of the hydraulic cylinder 2 applies force to the first clamping plate 3 to lift the main beam on the side of the tower body 12 where settlement occurs. As the main beam on the side of the tower body 12 where settlement occurs is lifted, the first clamping plate 3 moves with the tower body 12, pulling the second cable 6 to move, so that the second cable 6 applies force to the second clamping plate 4. The first clamping plate 3 and the second clamping plate 4 apply force to the tower body 12 together to straighten the tower body 12, repair and reinforce the tower foundation on the side of the tower body 12 where settlement occurs, and re-fix the tower body 12 and the tower foundation to complete the straightening and reinforcement.

[0060] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0061] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A transmission tower straightening and reinforcement device, comprising a base and a hydraulic cylinder for straightening the main beam on one side of the tower body that has settled, wherein the bottom of the hydraulic cylinder is spherically hinged to the top surface of the base, and characterized in that: The side wall of the base and the other three main beams of the tower body are mutually pulled by a plurality of first cables; A first clamping plate and a second clamping plate are respectively arranged on the main beam on the side where the tower body is lowered and the main beam opposite thereto, the first clamping plate is spherically hinged at the output end of the hydraulic cylinder, the second clamping plate is detachably connected with a second cable, the second cable is sequentially passed around a first fixed pulley fixed on the ground, a second fixed pulley fixed on the top surface of the base, and a third fixed pulley fixed on the first clamping plate, and then detachably connected to the top surface of the base, the first fixed pulley is placed on the side of the tower body away from the base; There are three first cables, two of which are connected between the side of the base and the bottom of the main beam opposite to the main beam on the settlement side, and two ends of another first cable are respectively connected to the bottoms of two main beams adjacent to the main beam on the settlement side, and the middle parts of the two first cables are connected to another first cable; The first clamping plate and the second clamping plate are each composed of two clamping plates respectively attached to the inner and outer sides of the main beam; A connecting plate is fixedly connected to the clamping plate that is in contact with the outer side of the main beam, the hydraulic cylinder and the third fixed pulley are connected to one of the connecting plates, and the end of the second cable is connected to the other connecting plate.

2. A transmission tower straightening and reinforcement device according to claim 1, characterized in that: The first cable end is fixed by a binding knot.

3. The transmission tower straightening and reinforcement device according to claim 1, characterized in that: The two ends of the second cable are detachably connected in the form of nuts and screws.

4. The transmission tower straightening and reinforcement device according to claim 1, characterized in that: The two clamping plates are fixed by bolts and nuts.

5. A transmission tower straightening and reinforcement device according to claim 4, characterized in that: The connecting surface between the clamping plate and the main beam is provided with anti-skid patterns.

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