Uneven settlement lifting adjusting device for power transmission tower foot

Abstract

The utility model provides a kind of uneven settlement lifting adjustment device of power transmission tower tower foot, it is related to power transmission tower technical field, including concrete layer and tower foot connecting piece, interlayer is provided in the concrete layer, two-way threaded rod is rotatably connected in the interlayer, the sliding connection with two-way threaded rod screw penetration slide is formed in the interlayer bottom surface both sides, two slide both sides are hinged with connecting plate, by the screw thread cooperation of two-way threaded rod and slide, and connecting plate and slider-slotted structure, the linear motion of slide is converted into the vertical displacement of tower foot connecting piece, compared with the prior art using four jacks, the device only needs to rotate one two-way threaded rod by motor control, can realize the stable lifting adjustment of tower foot connecting piece, effectively avoid the uneven stress problem of tower foot connecting piece caused by the out-of-sync work of multiple jacks.

Description

Technical Field

[0001] This utility model relates to the field of power transmission tower technology, and in particular to a device for adjusting the uneven settlement of the tower feet of a power transmission tower. Background Technology

[0002] In power transmission line towers located in mining subsidence areas, uneven settlement of the four foundation legs can occur, causing tower deformation and, in severe cases, tower collapse and line breakage accidents.

[0003] Therefore, in the existing technology of a transmission tower foot uneven settlement lifting and adjusting device, the disclosure number is CN215595147U. The top of the jack is placed directly below the jack fixing groove. By operating the jack, the top of the jack is moved into the jack fixing groove, and at the same time, the top end face of the jack is in close contact with the bottom surface of the jack fixing groove. Then, the jack is operated again, and four jacks work together to raise the tower foot connector to the initial position. At this time, a support pad is inserted between the tower foot connector and the tower installation foundation, ensuring that the square slot on the support pad is inserted into the anchor bolt, until the upper end face of the support pad is in contact with the lower end face of the tower foot connector again. At this time, the jack is controlled to retract, and the tower foot connector and the tower installation foundation will be completely supported by the support pad.

[0004] The device uses four jacks to adjust the height of the transmission tower legs. However, in actual operation, it is difficult to ensure that the four jacks work in perfect synchronization, which can easily lead to uneven stress on the tower leg connectors, exacerbate the tilting of the tower legs, or even damage the tower leg structure. In addition, using four jacks at the same time is costly and inconvenient to maintain. Utility Model Content

[0005] The purpose of this utility model is to solve the problems existing in the prior art, and to propose a lifting and lowering device for uneven settlement of the tower feet of power transmission towers.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a lifting and adjusting device for uneven settlement of transmission tower feet, comprising a concrete layer and a tower foot connector, wherein a sandwich layer is provided within the concrete layer, a bidirectional threaded rod is rotatably connected within the sandwich layer, and sliding plates threaded through the bidirectional threaded rod are slidably connected to both sides of the bottom surface of the sandwich layer, with connecting plates hinged to both sides of the two sliding plates, and the two connecting plates on the same side are rotatably connected to each other by a pin shaft at their middle parts, and through grooves are provided on the concrete layer corresponding to the positions of the two sliding plates, with a slider fixedly connected to the other end of the connecting plate through the through groove, and multiple sliding grooves are provided at the bottom of the tower foot connector, which are parallel to the sliding direction of the sliding plates, and multiple sliders are slidably connected to multiple sliding grooves respectively.

[0007] Preferably, the inner bottom surface of the interlayer is provided with an installation groove, a motor is fixedly connected in the installation groove, a gear is fixedly connected to the main shaft of the motor, and a gear is also fixedly connected to the middle of the bidirectional threaded rod, with the two gears meshing.

[0008] Preferably, it also includes a pad plate disposed between the concrete layer and the tower foot connector, wherein limit strips are fixedly connected to both sides of the bottom of the tower foot connector, and the plane on which the side of the pad plate is located is in clearance fit with the limit strips.

[0009] Preferably, a limiting groove is formed at the top of the concrete layer corresponding to the position of the limiting strip, and a limiting plate is inserted into the limiting groove. The top of the limiting plate is embedded in the gap between the limiting strip and the pad.

[0010] Preferably, two guide rails are provided on the inner bottom surface of the interlayer, and the bottom of the slide plate is slidably connected to the concrete layer through the guide rails.

[0011] Preferably, an elastic pad is provided at the bottom of the limiting groove.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the linear motion of the slide plate is converted into the vertical displacement of the tower foot connector by the threaded engagement of the bidirectional threaded rod and the slide plate, as well as the connecting plate and the slider-slide groove structure. Compared with the use of four jacks in the prior art, this device only needs to control the rotation of one bidirectional threaded rod by a motor to achieve smooth lifting and lowering adjustment of the tower foot connector, effectively avoiding the problem of uneven force on the tower foot connector caused by the asynchronous operation of multiple jacks.

[0014] 2. In this utility model, by setting a limiting strip, a limiting groove and a limiting plate, the displacement of the tower foot connector is effectively limited when the pad moves out from under the tower foot connector due to compression. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a lifting and lowering device for uneven settlement of the tower feet of a power transmission tower;

[0016] Figure 2 In this utility model Figure 1 A side-section three-dimensional structural diagram;

[0017] Figure 3 This is a three-dimensional structural diagram of the connecting plate in this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the skateboard in this utility model.

[0019] Legend: 1. Concrete layer; 2. Tower foot connector; 3. Interlayer; 4. Limiting plate; 5. Connecting plate; 6. Slider; 7. Guide rail; 8. Limiting strip; 9. Slide groove; 10. Mounting groove; 11. Gear; 12. Motor; 13. Two-way threaded rod; 14. Slide plate; 15. Pad; 16. Through groove; 17. Limiting groove; 18. Elastic pad. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] like Figure 1-4 As shown, a lifting and lowering device for uneven settlement of the tower foot of a power transmission tower includes a concrete layer 1 and a tower foot connector 2. A sandwich layer 3 is provided inside the concrete layer 1. A bidirectional threaded rod 13 is rotatably connected inside the sandwich layer 3. Slide plates 14, threaded through the bidirectional threaded rod 13, are slidably connected to both sides of the bottom surface of the sandwich layer 3. Connecting plates 5 are hinged to both sides of the two slide plates 14. The two connecting plates 5 located on the same side are rotatably connected to each other by a pin. Through grooves 16 are opened on both sides of the concrete layer 1 corresponding to the positions of the slide plates 14. The other end of the connecting plate 5 passes through the through grooves 16 and is fixedly connected to a slider 6. Multiple sliding grooves 9 are opened at the bottom of the tower foot connector 2, which are parallel to the sliding direction of the slide plates 14. Multiple sliders 6 are slidably connected to multiple sliding grooves 9 respectively. Two guide rails 7 are opened on the bottom surface of the sandwich layer 3. The bottom of the slide plates 14 is slidably connected to the concrete layer 1 through the guide rails 7.

[0023] In this technical solution, when the bidirectional threaded rod 13 rotates, it drives the two sliding plates 14 to slide relative to each other or in opposite directions along the guide rail 7 on the bottom surface of the interlayer 3. The guide rail 7 plays a guiding role to ensure the stable sliding of the sliding plates 14. When the sliding plates 14 move, the connecting plates 5 move accordingly. The two connecting plates 5 on the same side are connected by a pivot pin in the middle and the slider 6 is connected to the slide groove 9. The linear motion of the sliding plates 14 is converted into the vertical displacement of the tower foot connector 2. When solving the settlement problem, the bidirectional threaded rod 13 is rotated first to drive the tower foot connector 2 to rise. Then, the number of pads 15 is increased between the concrete layer 1 and the tower foot connector 2 to increase the thickness of the tower foot connector 2. Then, the bidirectional threaded rod 13 is reversed to drive the tower foot connector 2 to descend and squeeze the pads 15, so that the thicker pads 15 support the tower foot connector 2.

[0024] like Figure 2 As shown, an installation groove 10 is provided on the bottom surface of the inner layer 3. A motor 12 is fixedly connected in the installation groove 10. A gear 11 is fixedly connected to the main shaft of the motor 12. A gear 11 is also fixedly connected to the middle of the bidirectional threaded rod 13. The two gears 11 mesh.

[0025] In this technical solution, a motor 12 is provided to drive the bidirectional threaded rod 13 to move. Specifically, when the motor 12 is working, its main shaft drives two meshing gears 11 to rotate, which in turn drives the bidirectional threaded rod 13 to rotate.

[0026] like Figure 2 and Figure 4 As shown, it also includes a pad 15 set between the concrete layer 1 and the tower foot connector 2. Limiting strips 8 are fixedly connected to both sides of the bottom of the tower foot connector 2. The plane where the side of the pad 15 is located and the limiting strip 8 are in clearance fit. A limiting groove 17 is opened at the top of the concrete layer 1 corresponding to the position of the limiting strip 8. A limiting plate 4 is inserted into the limiting groove 17. The top of the limiting plate 4 is embedded in the gap between the limiting strip 8 and the pad 15. An elastic pad 18 is provided at the bottom of the limiting groove 17.

[0027] In this technical solution, by setting the limiting strip 8, the limiting groove 17 and the limiting plate 4, the displacement of the tower foot connector 2 is effectively limited when the pad 15 moves out from under the tower foot connector 2 due to compression. By setting the elastic pad 18, the distance between the tower foot connector 2 and the concrete layer 1 increases when the thickness of the pad 15 is increased. The limiting plate 4 is bounced up by the elastic pad 18, so that the top surface of the limiting plate 4 can always abut against the bottom of the tower foot connector 2.

[0028] Working principle: When it is necessary to adjust the height of the tower legs of the power transmission tower to cope with uneven settlement, the motor 12 is started. Its main shaft drives two meshing gears 11 to rotate, which in turn drives the bidirectional threaded rod 13 to rotate. When the bidirectional threaded rod 13 rotates, it drives two sliding plates 14 to slide along the guide rail 7. As the sliding plates 14 move, they drive the connecting plate 5 to rotate, thereby driving the tower leg connector 2 to rise. Then, the number of pads 15 is increased between the concrete layer 1 and the tower leg connector 2 to increase the thickness of the tower leg connector 2. Then, the bidirectional threaded rod 13 is reversed to drive the tower leg connector 2 to descend and squeeze the pads 15, so that the thicker pads 15 support the tower leg connector 2.

[0029] The wiring diagram of the motor 12 in this utility model is common knowledge in the field, and its working principle is a well-known technology. The appropriate model is selected according to actual use. Therefore, the control method and wiring arrangement of the motor 12 will be explained in more detail.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A device for adjusting the uneven settlement of the tower feet of a power transmission tower, comprising a concrete layer (1) and a tower foot connector (2), characterized in that: The concrete layer (1) is provided with a sandwich layer (3), and a bidirectional threaded rod (13) is rotatably connected in the sandwich layer (3). Slide plates (14) that are threaded through the bidirectional threaded rod (13) are slidably connected on both sides of the bottom surface of the sandwich layer (3). Connecting plates (5) are hinged on both sides of the two slide plates (14). The two connecting plates (5) located on the same side are rotatably connected to each other by a pin. The concrete layer (1) is provided with through grooves (16) on both sides of the slide plates (14). The other end of the connecting plate (5) passes through the through groove (16) and is fixedly connected to a slider (6). The bottom of the tower foot connector (2) is provided with multiple sliding grooves (9) that are parallel to the sliding direction of the slide plates (14). Multiple sliders (6) are slidably connected to multiple sliding grooves (9) respectively.

2. The uneven settlement adjustment device for transmission tower legs according to claim 1, characterized in that: The inner bottom surface of the interlayer (3) is provided with an installation groove (10), and a motor (12) is fixedly connected in the installation groove (10). A gear (11) is fixedly connected to the main shaft of the motor (12), and a gear (11) is also fixedly connected to the middle of the bidirectional threaded rod (13). The two gears (11) mesh.

3. The uneven settlement adjustment device for transmission tower legs according to claim 1, characterized in that: It also includes a pad (15) set between the concrete layer (1) and the tower foot connector (2), with limit strips (8) fixedly connected to both sides of the bottom of the tower foot connector (2), and the plane on the side of the pad (15) and the limit strips (8) are fitted with a clearance.

4. The uneven settlement adjustment device for transmission tower legs according to claim 1, characterized in that: A limiting groove (17) is provided at the top of the concrete layer (1) corresponding to the position of the limiting strip (8). A limiting plate (4) is inserted into the limiting groove (17). The top of the limiting plate (4) is embedded in the gap between the limiting strip (8) and the pad (15).

5. The uneven settlement adjustment device for transmission tower legs according to claim 1, characterized in that: Two guide rails (7) are provided on the bottom surface of the interlayer (3), and the bottom of the slide plate (14) is slidably connected to the concrete layer (1) through the guide rails (7).

6. The uneven settlement adjustment device for the tower feet of a power transmission tower according to claim 4, characterized in that: An elastic pad (18) is provided at the bottom of the limiting groove (17).

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