Icing suppression device for overhead transmission line

Abstract

The utility model provides an overhead transmission line icing galloping suppression device, which relates to the technical field of electric power engineering and comprises a mounting seat, a mounting cavity is arranged in the mounting seat, a moving seat is arranged in the mounting cavity, a lubricating assembly is arranged in the moving seat, and the lubricating assembly is arranged in the mounting cavity. The lubricating assembly comprises a storage cavity, two oil pumps, two suction pipes and two output pipes, two supporting and adjusting assemblies are further mounted on the back side of the moving seat, each supporting and adjusting assembly comprises a supporting mounting column, a connecting supporting column and a connecting piece, and the moving seat is driven by two hydraulic rods to slide in the mounting cavity along a limiting sliding rail. Accurate adjustment of the installation position of the inhaul cable is achieved, then the prestress of the inhaul cable can be effectively adjusted, the running stability and durability of the device can be ensured through the design of the lubricating assembly, and the oil pump can suck lubricating liquid in the storage cavity through the suction pipe and send the lubricating liquid to the oil outlet chamber through the output pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to power engineering technical field especially relates to an overhead transmission line icing galloping suppression device. BACKGROUND

[0002] Overhead power line is exposed in the open air all the year round, is influenced more seriously by geographical position and environmental condition, is easy to suffer icing or gale and lead to conductor galloping, even in the case of not serious icing or non-gale, the power line also will decrease amplitude increase of camber, is easy to make the line galloping, endanger line safe operation. The environment of overhead power line passage in China is complex, and the transmission line erection often needs to cross high-altitude area, lake and other complex terrain areas for a long distance, and the operation state is greatly influenced by geographical position and environmental condition, and is easy to appear icing galloping or deicing dancing under the action of local regional climate environmental factors such as rain and snow weather, humidity, altitude, terrain, wind, and effective and targeted measures need to be taken to eliminate the influence of icing galloping to ensure the safe operation of the transmission line and the stable operation of the power grid.

[0003] According to the overhead transmission line icing galloping suppression device disclosed by the Chinese patent document (authorized publication number: CN212392644U), the device comprises an icing conductor, an insulating rope, an insulator, and an external viscous damper. The insulating rope passes through the icing conductor, and the two ends of the insulating rope are connected to the insulator. Two external viscous dampers are provided, and the two external viscous dampers are connected to the bottom ends of the two insulators. The bottom ends of the two external viscous dampers are connected to the ground. A ground anchor or a ground anchor drill is also provided on the ground, and the bottom ends of the external viscous dampers are connected to the ground anchor or the ground anchor drill. The utility model utilizes the absorption and energy dissipation effect of the external viscous damper to suppress the galloping and deicing dancing of the icing conductor, ensuring the safe operation of the transmission line. The device can suppress both the longitudinal galloping and the transverse galloping of the icing conductor, and it is designed reasonably and is easy to assemble and disassemble.

[0004] However, the above-mentioned scheme still has the following shortcomings when implemented:

[0005] The device cannot adjust the prestress of the cable, which makes it difficult to achieve the ideal state of suppressing the line galloping and cannot fully utilize the potential of the cable in suppressing galloping.

[0006] Therefore, we propose an overhead transmission line icing galloping suppression device. Utility model content

[0007] The utility model aims to solve the shortcomings in the prior art, and the device cannot adjust the prestress of the cable, which makes it difficult to achieve the ideal state of suppressing the line galloping and cannot fully utilize the potential of the cable in suppressing galloping.

[0008] In order to achieve the above object, the utility model discloses the following technical scheme:

[0009] An overhead transmission line icing galloping suppression device, including the mounting seat, the inside of mounting cavity is established to the mounting seat, the inside of mounting cavity is equipped with the mobile seat, the inside installation of mobile seat has lubricating component, lubricating component includes storage cavity, two oil pumps, two suction pipes and two output pipes,

[0010] The back of mobile seat still is equipped with two support adjusting components, and the support adjusting component includes support mounting column, connecting support column and connecting piece.

[0011] Two support adjusting components between still be equipped with two hydraulic rods, and two hydraulic rods are used to drive the mobile seat to slide.

[0012] As the preferred scheme of the utility model, the inside of mounting cavity still is equipped with two limit sliding rails, and the limit sliding block is installed on two limit sliding rails, and the mobile seat is installed on the top of two limit sliding blocks, and the limit sliding block can be slidably connected between the limit sliding rail.

[0013] As the preferred scheme of the utility model, the inside of mobile seat is established to place cavity, and the storage cavity of lubricating component is installed in the inside of place cavity, and the inside of storage cavity still is equipped with two oil pumps, and the input end of two oil pumps is equipped with suction pipe, and the output end of two oil pumps is equipped with output pipe, and the connecting place of two output pipes still is equipped with oil outlet chamber.

[0014] As the preferred scheme of the utility model, the oil pump can absorb the lubricating liquid in the inside of storage cavity through the suction pipe, and is sent to the oil outlet chamber through the output pipe, and the limit sliding block is lubricated through the oil outlet chamber.

[0015] As the preferred scheme of the utility model, the inside of support mounting column is established to connecting groove, and the side of connecting support column is equipped with mounting seat mobile seat, and the connecting support column can be connected through the thread connection between mounting seat mobile seat and the connecting groove of support mounting column.

[0016] As the preferred scheme of the utility model, the connecting support column can be connected and supported between the connecting piece and the mobile seat.

[0017] As the preferred scheme of the utility model, the top of mounting seat still is equipped with a plurality of protective cover plates, and a plurality of protective cover plates are used for protecting the top of mounting seat, and the top of mobile seat is equipped with drawbar, and the drawbar is used for installing inhaul cable.

[0018] Compared with the prior art, the utility model has the beneficial effects that:

[0019] The utility model discloses a kind of support adjustment assemblies, which are used to adjust the height and angle of the support, so that the support adjustment assemblies can adapt to different installation environments and line layout requirements. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A schematic diagram of the main body structure of the overhead power transmission line icing galloping suppression device is provided.

[0021] Figure 2 A schematic diagram of the internal structure of the mounting seat of the overhead power transmission line icing galloping suppression device is provided.

[0022] Figure 3 A schematic diagram of the support adjustment assembly of the overhead power transmission line icing galloping suppression device is provided.

[0023] Figure 4 A schematic diagram of the lubricating assembly of the overhead power transmission line icing galloping suppression device is provided.

[0024] Figure 5 A schematic diagram of the main body cross-sectional structure of the overhead power transmission line icing galloping suppression device is provided.

[0025] Legend: 1, mounting seat; 2, protective cover plate; 3, mounting cavity; 4, limiting slide rail; 5, limiting sliding block; 6, moving seat; 7, pull rod; 8, placing cavity; 9, storage cavity; 10, oil pump; 11, suction pipe; 12, output pipe; 13, support mounting column; 14, connecting groove; 15, connecting support column; 17, connecting piece; 18, hydraulic rod; 19, oil outlet chamber. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] In order to facilitate the understanding of the present application, the following will be described with reference to the related application, a more comprehensive description of the present application is given, several embodiments of the present application, but the present application can be realized in many different forms, and is not limited to the embodiments described herein, on the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0028] It should be noted that when an element is referred to as being "fixedly attached" to another element, it can be directly on the other element or there can be intervening elements, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be intervening elements, the terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs, the terms used herein in the specification of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application, the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] Embodiments

[0031] As Figures 1-5 shown, the present application provides a technical scheme: an overhead transmission line icing galloping suppression device, including the mounting seat 1, the inside of the mounting seat 1 is provided with installation cavity 3, the inside of the installation cavity 3 is equipped with the moving seat 6, the inside of the moving seat 6 is installed lubricating assembly, the lubricating assembly includes storage cavity 9, two oil pumps 10, two suction pipes 11 and two output pipes 12, the inside of the installation cavity 3 is also equipped with two limit sliding rails 4, two limit sliding blocks 5 are installed on the two limit sliding rails 4, the moving seat 6 is installed on the top of the two limit sliding blocks 5, the limit sliding block 5 can be connected between the limit sliding rail 4 and the limit sliding rail 4.

[0032] The mounting seat 1 is a basic fixed component of the entire restraining device, and the mounting cavity 3 in the mounting seat 1 provides mounting space and a running track for other components. The size and shape of the mounting cavity 3 are accurately designed to ensure that the moving seat 6 can stably move in a straight line in the mounting cavity 3. The two limiting sliding rails 4 are installed on the two side walls in the mounting cavity 3 in parallel. The limiting sliding rails 4 have high flatness and hardness and can bear the weight of the moving seat 6 and related components and the friction generated during movement. The limiting sliding block 5 is tightly connected with the moving seat 6, and the bottom of the limiting sliding block 5 is provided with a groove or slide matching the limiting sliding rail 4, so that the limiting sliding block 5 can smoothly slide on the limiting sliding rail 4. Through the cooperation between the sliding block and the sliding rail, the movement of the moving seat 6 is limited to a specific straight line direction, avoiding deviation or shaking of the moving seat 6, thereby providing a stable mechanical basis for subsequent accurate adjustment of the prestress of the cable. The lubricating assembly in the moving seat 6 is used to reduce the friction between the limiting sliding block 5 and the limiting sliding rail 4, improve the running efficiency and service life of the device, and store the lubricating liquid in the storage cavity 9. The two oil pumps 10 are respectively responsible for pumping the lubricating liquid from the storage cavity 9, sucking the lubricating liquid through the suction pipe 11, and then delivering the lubricating liquid to the oil outlet chamber 19 through the output pipe 12.

[0033] Based on the principle of sliding friction, the directional movement of the moving seat 6 is realized through the cooperation of the limiting sliding block 5 and the limiting sliding rail 4. The intervention of the lubricating assembly reduces the friction coefficient by utilizing the lubricating properties of the liquid, thereby reducing component wear and energy loss.

[0034] The moving seat 6 is internally provided with a placing cavity 8, and the storage cavity 9 of the lubricating assembly is installed in the placing cavity 8. The storage cavity 9 is further provided with two oil pumps 10. The input ends of the two oil pumps 10 are respectively provided with suction pipes 11, and the output ends of the two oil pumps 10 are respectively provided with output pipes 12. The connecting portions of the two output pipes 12 are further provided with an oil outlet chamber 19. The oil pump 10 can adsorb the lubricating liquid in the storage cavity 9 through the suction pipe 11, deliver the lubricating liquid to the oil outlet chamber 19 through the output pipe 12, and lubricate the limiting sliding block 5 through the oil outlet chamber 19.

[0035] The placing cavity 8 provides a stable mounting position for the storage cavity 9, so that the storage cavity 9 is not easy to shake in the moving seat 6. The storage cavity 9 is designed to be sealed to prevent leakage of the lubricating liquid and entry of impurities. The two oil pumps 10 are provided to improve the delivery efficiency of the lubricating liquid and to realize redundancy backup. When one oil pump 10 fails, the other oil pump 10 can still ensure the basic lubricating function.

[0036] The suction pipe 11 extends into the bottom of the storage cavity 9 to ensure that sufficient lubricating liquid can be extracted. The output pipe 12 delivers the lubricating liquid to the oil outlet chamber 19 located near the limiting slide block 5, and the oil outlet chamber 19 is provided with a plurality of oil outlets which are carefully designed in position and direction to enable the lubricating liquid to be evenly distributed on the contact surface between the limiting slide block 5 and the limiting slide rail 4.

[0037] When the oil pump 10 is working, the lubricating liquid is under pressure from the storage cavity 9 through the suction pipe 11, the oil pump 10, the output pipe 12 to the oil outlet chamber 19, and then flows out from the oil outlet to form a continuous lubricating film between the limiting slide block 5 and the limiting slide rail 4, thereby converting dry friction between the two into liquid friction and greatly reducing the friction.

[0038] By taking advantage of the incompressibility and fluidity of the liquid, the oil pump 10 provides power to make the lubricating liquid circulate in the closed pipeline system to achieve lubrication of the frictional parts, which is based on the principles of fluid mechanics about liquid flow in the pipeline and liquid lubricated interface friction.

[0039] The back side of the moving seat 6 is also provided with two support adjusting assemblies, which include a support mounting column 13, a connecting support column 15 and a connecting piece 17. The support mounting column 13 is internally provided with a connecting groove 14, and the connecting support column 15 is provided with a mounting seat 1 moving seat 6 on one side. The connecting support column 15 can be threadedly connected between the mounting seat 1 moving seat 6 and the connecting groove 14 of the support mounting column 13.

[0040] The support mounting column 13 is fixed on the mounting seat 1 or other stable basic structure, and the connecting groove 14 in the interior has a specific thread structure. The parameters such as pitch and tooth type of the thread are designed according to the required adjustment accuracy and bearing capacity of the support adjusting assembly.

[0041] The mounting seat 1 moving seat 6 at one end of the connecting support column 15 is provided with a matching thread. By rotating the connecting support column 15, it can be raised or lowered in the connecting groove 14 of the support mounting column 13, so as to realize the adjustment of the height.

[0042] The connecting piece 17 serves to connect the moving seat 6 and the connecting support column 15. It can effectively transmit the support force of the connecting support column 15 to the moving seat 6, and keep the relative stability between the connecting support column 15 and the moving seat 6 during the sliding process of the moving seat 6.

[0043] The connecting piece 17 can adopt a joint bearing or other connection mode capable of adapting to a certain angle change, so that when the position of the moving seat 6 changes, the connecting support column 15 can still stably provide a supporting force, and at the same time, allows the connecting support column 15 to adjust the angle within a certain range to adapt to different installation requirements and stress conditions.

[0044] Based on the screw transmission principle, the linear displacement of the connecting support column 15 in the connecting groove 14 is realized by rotating the connecting support column 15, so as to change the supporting height. The connecting piece 17 utilizes its flexible connection characteristics to adapt to the movement and angle change of the moving seat 6 while ensuring force transmission, which is based on the force transmission and conversion principle in mechanical structure and the characteristics of screw transmission.

[0045] The top of the mounting seat 1 is also provided with a plurality of protective cover plates 2, and the plurality of protective cover plates 2 are used for protecting the top of the mounting seat 1. The top of the moving seat 6 is provided with a pull rod 7, and the pull rod 7 is used for installing a cable.

[0046] The protective cover plates 2 are made of corrosion-resistant and high-strength materials, such as aluminum alloy or stainless steel plates. They are fixed on the top of the mounting seat 1 by bolts or other connection methods to form a closed or semi-closed protective space, which can effectively block rainwater, snow, sand, dust and other external impurities from entering the installation cavity 3, thereby avoiding the erosion, short circuit or blockage of the internal mechanical parts, electrical elements (if any) and lubrication system, and prolonging the service life and maintenance period of the device.

[0047] The pull rod 7 on the top of the moving seat 6 is a connecting component specially designed for the cable. The shape, size and material of the pull rod 7 are determined according to the specifications and required tension of the cable. The pull rod 7 usually has high strength and toughness, one end of which is firmly connected to the moving seat 6, and the other end is provided with a connecting structure matched with the cable, such as a hook, a clamp or a threaded connector, which facilitates the quick installation and disassembly of the cable, and can ensure that the tension of the cable is evenly transmitted to the moving seat 6 and the entire restraining device.

[0048] The protective cover plates 2 utilize the physical protection performance of the material to block the influence of external adverse factors on the internal structure, based on the corrosion resistance and sealing performance of the material. The pull rod 7 relies on the force transmission principle in mechanics to reliably transmit the tension of the cable to the device main body.

[0049] The working process is as follows:

[0050] Firstly, according to the actual situation of the line and the demand for cable prestress, the position of the connecting support column 15 in the connecting groove 14 of the support adjusting assembly is adjusted by rotating the connecting support column 15, so as to determine the initial height and angle of the moving seat 6, laying a foundation for subsequent cable prestress adjustment.

[0051] Then, the hydraulic rod 18 is started, and the hydraulic rod 18 pushes or pulls the moving seat 6 according to the instruction of the control system or the manual operation signal.

[0052] The moving seat 6 is guided by the two limiting sliding blocks 5 and the limiting sliding rails 4 to slide linearly inside the installation cavity 3, and in the sliding process, the lubricating assembly starts to work, the oil pump 10 sucks the lubricating liquid in the storage cavity 9 through the suction pipe 11, then delivers it to the oil outlet chamber 19 through the output pipe 12, and then flows out from the oil outlet of the oil outlet chamber 19, thereby lubricating the contact surface of the limiting sliding block 5 and the limiting sliding rail 4, and ensuring that the moving seat 6 can move smoothly.

[0053] With the movement of the moving seat 6, the pull rod 7 at the top of the moving seat 6 also moves, thereby causing the displacement of the connection point of the cable, and realizing the adjustment of the prestress of the cable, and in the adjustment process, the prestress condition of the cable can be monitored in real time through a monitoring device (such as a tension sensor), until the predetermined prestress value is reached.

[0054] During the operation of the device, the protective cover plate 2 always protects the top of the installation seat 1 to prevent foreign matters from entering, and the support adjusting assembly continuously provides stable support force for the moving seat 6, and can be further adjusted according to the actual situation (such as the slight deformation of the tower, the change of the line parameters, etc.), so as to ensure the stability of the prestress of the cable and inhibit the normal operation of the device.

[0055] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for suppressing ice galloping on overhead transmission lines, comprising a mounting base (1), characterized in that: The mounting base (1) has an installation cavity (3) inside, and a movable seat (6) is provided inside the mounting cavity (3). A lubrication assembly is installed inside the movable seat (6). The lubrication assembly includes a storage cavity (9), two oil pumps (10), two suction pipes (11), and two output pipes (12). Two support adjustment assemblies are also installed on the back side of the movable seat (6). The support adjustment assemblies include a support mounting column (13), a connecting support column (15), and a connector (17). Two hydraulic rods (18) are also provided between the two support adjustment components, and the two hydraulic rods (18) are used to drive the movable seat (6) to slide.

2. The overhead transmission line icing and galloping suppression device according to claim 1, characterized in that: The mounting cavity (3) is also provided with two limiting slide rails (4), and each of the two limiting slide rails (4) is equipped with a limiting slider (5). The moving seat (6) is installed on the top of the two limiting sliders (5), and the limiting slider (5) can be slidably connected to the limiting slide rail (4).

3. The overhead transmission line icing and galloping suppression device according to claim 2, characterized in that: The movable seat (6) has a placement cavity (8) inside, and the storage cavity (9) of the lubrication component is installed inside the placement cavity (8). The storage cavity (9) is also provided with two oil pumps (10). The input end of each of the two oil pumps (10) is provided with a suction pipe (11), and the output end of each of the two oil pumps (10) is provided with an output pipe (12). The connection between the two output pipes (12) is also provided with an oil outlet chamber (19).

4. The overhead transmission line icing and galloping suppression device according to claim 3, characterized in that: The oil pump (10) can absorb the lubricating fluid inside the storage chamber (9) through the suction pipe (11) and send it to the oil outlet chamber (19) through the output pipe (12), and lubricate the limiting slider (5) through the oil outlet chamber (19).

5. The overhead transmission line icing and galloping suppression device according to claim 4, characterized in that: The support mounting column (13) has a connecting groove (14) inside. The connecting support column (15) has a mounting seat (1) and a movable seat (6) on one side. The connecting support column (15) can be threadedly connected to the connecting groove (14) of the support mounting column (13) through the mounting seat (1) and the movable seat (6). The connecting support column (15) also has a connector (17) on one side.

6. The overhead transmission line icing and galloping suppression device according to claim 5, characterized in that: The connecting support column (15) can be connected and supported to the movable seat (6) through the connector (17).

7. The overhead transmission line icing and galloping suppression device according to claim 6, characterized in that: The top of the mounting base (1) is also provided with several protective cover plates (2), which are used to protect the top of the mounting base (1). The top of the movable base (6) is provided with a pull rod (7), which is used to install a cable.

Images